More IJN Officer Info

[ijnfleetadmiral]

Is the following correct for ASAGAO? TIA for any info.

ASAGAO
Commanding Officers
(CEO) - LCDR YOSHIDA Tsunemitsu (36) - 1 December 1922 - 10 May 1923
LCDR YOSHIDA Tsunemitsu (36) - 10 May 1923 - 1 December 1924
LCDR SAKANO Tamibe (38) - 1 December 1924 - 1 December 1925
LCDR KOGA Shichisaburo (36) - 1 December 1925 - 1 December 1926
LCDR NAMBA Sukeyuki (39) - 1 December 1926 - 1 November 1927
LCDR YANO Shikazo (43) - 1 November 1927 – 1 August 1928
VACANT – 1 August 1928 - 10 December 1928
LCDR NAKAZAWA Tasuku (43) - 10 December 1928 - 30 November 1929
LCDR ARAKI Tsuto (45) - 30 November 1929 - 1 April 1932
LCDR NAKATSU Seiki (44) - 1 April 1932 - 15 May 1934
LCDR SEI Tsuneo (48) - 15 May 1934 - 20 August 1934
LCDR WATANABE Yasumasa (49) - 20 August 1934 - 15 November 1935
LCDR YOSHII Goro (50) - 15 November 1935 - 24 February 1936
LT / LCDR AOKI Kyuji (50) - 24 February 1936 - 15 November 1937
LT / LCDR NAKAMURA Noboru (52) - 15 November 1937 - 15 October 1940
LT / LCDR KIMOTSUKI Masaaki (56) - 15 October 1940 - 10 April 1941
LT / LCDR SUGIHARA Yoshiro (57) - 10 April 1941 - 25 April 1942
LCDR ONISHI Yuji (57) - 25 April 1942 - 20 October 1943
LT MORI Sakae (63) - 20 October 1943 - 20 May 1945
LT ISHIGURE Nobutoshi (68) - 20 May 1945 - 22 August 1945

Torpedo Officers
??? – 10 May 1923 – 30 May 1924
LT SHIBUYA Shiro (44) – 30 May 1924 – 1 December 1925
??? – 1 December 1925 – 6 April 1942
LTJG FUKUYAMA Tetsuya (68) - 6 April 1942 - 7 March 1943
??? - 7 March 1943 - 22 August 1945

Gunnery Officers
(EO) – LT KINOSHITA Mitsuo (43) – 1 December 1922 – 10 May 1923
LT KINOSHITA Mitsuo (43) – 10 May 1923 – 1 June 1923
??? – 1 June 1923 – 10 December 1928
LT SUGI Toma (50) – 10 December 1928 – 30 November 1929
??? – 30 November 1929 – 22 August 1945

Navigators
(EO) – LTJG TAKADA Sakae (46) – 10 February 1923 – 10 May 1923
LTJG TAKADA Sakae (46) – 10 May 1923 – 1 December 1923
??? – 1 December 1923 – 1 December 1934
LTJG HAYASHI Yasutaro (59) - 1 December 1934 - 1 December 1935
??? - 1 December 1935 - 22 August 1945

Chief Engineers
??? – 10 May 1923 – 1 December 1936
LT (Eng.) HAYASHIZAKI Takeo (Eng. 39) – 1 December 1936 – ???
??? – ??? – 22 August 1945

[Berend]

Was there a vacancy for the position of Sata CO for the period 20 February 1926 - 1 March 1928?

Regards,

Berend.

[ijnfleetadmiral]

Was there a vacancy for the position of Sata CO for the period 20 February 1926 - 1 March 1928?

Partially correct.

SATA
Commanding Officers
(CEO) - CAPT KATO Kozo (28) - 15 December 1920 - 24 February 1921
CAPT KATO Kozo (28) - 24 February 1921 - 20 December 1921
CAPT KOGA Takuichi (29) – 20 December 1921 – 27 December 1921
CAPT TANIGAWA Seiji (28) - 27 December 1921 - 15 May 1922
CAPT TAKASAKI Chikateru (30) - 15 May 1922 - 10 November 1922
CAPT HASHIMOTO Saisuke (30) - 10 November 1922 - 1 April 1923
CAPT SATO Minokichi (30) - 1 April 1923 - 15 October 1923
CDR NARUTOMI Yasuji (30) – 15 October 1923 – 10 January 1924
CDR YOSHIKAWA Makiyo (31) – 10 January 1924 - 1 November 1924
CDR / CAPT NAGAI Minoru (32) - 1 November 1924 - 1 December 1925
CDR TSUBOI Chozaemon (33) - 1 December 1925 – 20 February 1926
VACANT – 20 February 1926 - 15 May 1927
CDR YAMAZAKI Masaichi (??) - 15 May 1927 - 1 March 1928
CAPT KITA Seiichiro (34) - 1 March 1928 - 10 December 1928
CDR MUTO Hiroshi (35) - 10 December 1928 - 1 November 1929
CDR / CAPT ISA Takuya (34) - 1 November 1929 - 1 December 1930
CAPT OGURA Manjiro (35) - 1 December 1930 - 15 January 1931
CAPT SAKUMA Keitaro (36) - 15 January 1931 - 1 December 1931
CDR TAKAHASHI Eikichi (36) - 1 December 1931 - 1 February 1932
CAPT TANIIKE Saburo (36) - 1 February 1932 - 1 December 1932
CDR INAGAWA Yosaburo (37) - 1 December 1932 - 1 October 1933
CDR MAEZAWA Sukeharu (37) - 1 October 1933 - 15 October 1934
CDR / CAPT MIZUSAKI Shojiro (38) - 15 October 1934 - 18 April 1935
CAPT ICHINOSE Shinichi (41) - 18 April 1935 - 15 October 1935
CDR / CAPT FUKUDA Teizaburo (40) - 15 October 1935 - 20 March 1936
CAPT IKEUCHI Masamichi (40) - 20 March 1936 - 2 November 1936
CDR / CAPT MORI Kunizo (40) - 2 November 1936 - 1 December 1937
CAPT ISHIZAKI Noboru (42) - 1 December 1937 - 20 December 1938
CAPT NISHIO Hidehiko (41) - 20 December 1938 - 28 January 1939
CAPT KURUSHIMA Shigeo (40) - 28 January 1939 - 1 July 1939
CAPT MIURA Tomosaburo (38) - 1 July 1939 - 15 February 1940
CAPT NAMBA Sukeyuki (39) - 15 February 1940 - 15 October 1940
CDR / CAPT SHIBUYA Kiyomi (45) - 15 October 1940 - 20 September 1941
CAPT KUSAKAWA Kiyoshi (38) - 20 September 1941 - 6 October 1941
CAPT MURAO Jiro (39) - 6 October 1941 - 1 October 1942
CAPT HASEBE Yoshizo (40) - 1 October 1942 - 1 February 1943
CAPT TAKAHASHI Tasuku (43) - 1 February 1943 - 30 March 1944

[Berend]

Ok, thank you Ijnfleetadmiral.

Berend.

[ijnfleetadmiral]

According to my records CAPT KITAMURA Masayuki 北村昌幸 (49) died on 9 September 1944 and was promoted RADM posthumously. Is there any info on the circumstances of his death? Was he KIA or was it illness/natural causes? TIA for any info.

[fontessa]

According to my records CAPT KITAMURA Masayuki 北村昌幸 (49) died on 9 September 1944 and was promoted RADM posthumously. Is there any info on the circumstances of his death? Was he KIA or was it illness/natural causes? TIA for any info.

He was KIA. He was appointed a 運航指揮官 Convoy Operation Commander of 第1海上護衛隊 1st Surface Escort Unit in April 1944. This post was the commanders of convoys. He commanded 3rd Convoy Operation Command Group and boarded on Type3 Special Transport 豊岡丸 Toyooka Mar (7,097 tons) of Convoy TAMA25 (from Takao to Manila). It departed Takao on 5 September 1944. She was hit by torpedoes from an unclear U.S. submarine Sunk in the Bashi Strait on 9 September 1944. Actually, Manshu Maru (3,050 tons) was also sunk on the same day. But I think CAPT KITAMURA Masayuki was on board a larger Toyooka Mar. And there was no loss of escort ships on the same day.

Convoy Operation Commander System didn't seem to have worked very well because a CAPT was the commander and didn't have staff officers. These were replaced by 護衛船団司令部 Convoy Escort Headquarters, with RADM as commander and staff officers.

1st Surface Escort Unit HQ in September 1944
Commanding Officer: VADM NAKAJIMA Torahiko 中島寅彦 (39)
Chief of Staff: CAPT Horiuchi Shigetada 堀内茂忠 (46)
Staff Officer (Head): CDR UOZUMI Yorikazu 魚住頼一 (52)
Staff Officer (Communications): LCDR NIU Masataka 丹生正孝 (61)
Staff Officer (Supply/Engine/Rescue): LCDR GOTO Junichi 後藤準一 (Eng.43)
(ADD) Adjutant: LT HORI Hideo 堀秀夫 (Mobilized)
(ADD) Staff Officer (Negotiations with Other Organizations): CDR HARA Michio 原道男(51)
(ADD) Staff Officer (Negotiations with Other Organizations): LCDR SAKAGAMI Goro (ADD) Staff Officer (Negotiations with Other Organizations): CDR SAKAGAMI Goro 坂上五郎 (Eng.34) → CDR UEDA Shiro 上田四郎 (Eng.38)
(ADD) Staff Officer (Dispatched from IJA): YAMAMOTO Koji 山本治二
Attached to HQ (Medical): LT MATAMA Sanjiro 真玉三治郎 (1924)
Attached to HQ (General Affairs): LT KOCHIYAMA Kazuo 河内山一夫 (2Y 1942)
Attached to HQ (Boarded Harukaze): ENS CADET ITO Senichi 伊藤銑一 (73)
Attached to HQ (Boarded Etorofu): ENS CADET YOSHIHARA Hisao 吉原久雄 (73)
Attached to HQ (Boarded Shiokaze): ENS CADET SUZUKI Minoru 鈴木実 (73)
Attached to HQ (Boarded Kaibokan No.41): ENS (Res) AJIKI Yoshio 安食良雄
Attached to HQ (Boarded Kaibokan No.3): ENS (Res.) YAMAZAKI Yoshio 山崎善男
Attached to HQ (Boarded Shimushu) ENS (Res.) NAGAO Yutaka 長尾大
Attached to HQ (Boarded Yashiro): ENS (Res.) KUDO Hitoshi 工藤均
Attached to HQ (Boarded DD Harukaze): ENS (Res.) HYODO Hiromi 兵藤宏観
Attached to HQ (Boarded Chiburi): ENS (Res.) KOHARA Yukio 小原幸雄
Attached to HQ (Boarded DD Shiokaze): ENS (Res.) HOKKE Yoshiji 法華由二
Attached to HQ (Boarded Kurahashi): ENS (Res.) ADACHI Toru 安達徹
Attached to HQ (Boarded Etorofu): ENS (Res.) NAKAZAWA Shoichi 中沢正一:
Attached to HQ (Boarded Mikura) ENS (Res.) KOBAYASHI Hiroshi 小林博
Attached to HQ (Boarded Shonan): ENS (Res.) AKIBAYASHI Kinya 秋林欽也
Attached to HQ (Boarded Hato): ENS (Res.) Murao Mamoru 村尾護
Attached to HQ (Boarded Kaibokan No.1): ENS (Res.) TAKEUCHI Jiro 竹内二郎
Attached to HQ (Temporary 503rd Ship Air Defense Commander): ENS (???) SUZUKI Kozo鈴木幸蔵
Attached to HQ (Temporary 512nd Ship Air Defense Commander): ENS (???) UESUGIYoshio 上杉義雄
Attached to HQ (Temporary 523rd Ship Air Defense Commander): ENS (???) ONO Minoru 小野実
1st Convoy Operation Commander: CAPT SOMA Shinashiro 相馬信四郎 (Modified) [Commanding MOTA-27 / TAMA-27]
2nd Convoy Operation Commander: CAPT KURUSHIMA Shigeo 来島茂雄 (Mobilized) [Commanding MOTA-26]
3rd Convoy Operation Commander: CAPT KITAMURA Masayuki 北村昌幸 (49) [Commanding TAMA-25]
4th Convoy Operation Commander (Commanding MOTA-): CAPT AKAANA Toshikazu 赤穴敏一 (Mobilized)
5th Convoy Operation Commander: CAPT MORI Shigeji 森繁二 (Mobilized)
6th Convoy Operation Commander: CAPT YAGI Kyugo 八木九吾 (Mobilized)
7th Convoy Operation Commander: CAPT OHASHI Tatsuo 大橋竜男 (Mobilized)
8th Convoy Operation Commander: CAPT YAMAMOTO Masaichi 山本雅一 (Mobilized) [Commanding MI-14]
9th Convoy Operation Commander (Commanding HI-75): CAPT FUJITA Shunzo 藤田俊造 (Mobilized)
10th Convoy Operation Commander: CAPT HASHIKURA Tokushi 橋倉得止 (Mobilized) [Commanding MI-17]
11th Convoy Operation Commander: CAPT KATO Yoshiro 加藤与四郎 (Mobilized) [Commanding MI-13]
12th Convoy Operation Commander: CAPT SHINODA Kiyohiko 篠田清彦 (Mobilized)
13th Convoy Operation Commander: CAPT AZUKIZAWA Sei 小豆沢成 (Mobilized) [Commanding MI-19]
14th Convoy Operation Commander: CAPT ONO Yoshitaka 大野善隆 (Mobilized)　 [Commanding MI-21]
16th Convoy Operation Commander: CAPT HOSOYA Sukehiko 細谷資彦 (Mobilized)
West Area Commander: CAPT HOSOYA Yoshio 細谷義男 (Mobilized)
East Area Commander: CAPT SAKAI Suminobu 境澄信 (Mobilized) → CAPT MINOBE Sadakatsu 美濃部貞功 (42)
(ADD) Saigon Area Commander: CAPT SASAKI Takanobu 佐佐木高信 (47)
(ADD) Milli Area Commander: CAPT ABE Koun 阿部耕運 (Mobilized)
MATA: Manila → Takao
TAMA: Takao → Manila
MI: Milli ←→ Moji

fontessa

[ijnfleetadmiral]

Thanks for the info!

[ijnfleetadmiral]

Here's what I have for another major Naval Hospital...TIA to anyone who can help fill in blanks.

Sasebo Naval Hospital
Directors
(S) CAPT YOSHIDA Teijun (1886) - 20 May 1893 - 16 February 1895
(S) LCDR KIMURA Sosuke (Cradle) - 16 February 1895 - 25 July 1896
(S) CAPT SUZUKI Konosuke (Cradle) - 25 July 1896 - 15 December 1897
(S) CDR ISHIGURO Uchuji (1886) - 15 December 1897 - 22 February 1898 (Acting)
(S) CAPT ISHIGURO Uchuji (1886) - 22 February 1898 - 29 November 1900
(S) CAPT / (S) RADM YOSHIDA Teijun (1886) - 29 November 1900 - 27 May 1902
(S) RADM TOTSUKA Kankai (Cradle) - 27 May 1902 - 13 December 1905
(S) RADM YOSHIMURA Susumu (1885) - 13 December 1905 - 9 October 1907
(S) CAPT / (S) RADM OTA Yataro (1886) - 9 October 1907 - 9 April 1910
??? - 9 April 1910 - 1 December 1911
(S) RADM YABE Tatsusaburo (1886) - 1 December 1911 - 13 December 1915
(S) CAPT / (S) RADM NISHI Isao (1891) - 13 December 1915 - 1 June 1919
??? - 1 June 1919 - 1 December 1919
(S) RADM HIRANO Isamu (1892) - 1 December 1919 - 1 December 1921
(S) RADM NAKAGAWA Heihachi (1893) - 1 December 1921 - 10 November 1922
(S) RADM AMAMIYA Ryoshichiro (1899) - 10 November 1922 - 1 December 1923
(S) RADM ONUKI Yasuzo (1898) - 1 December 1923 - 27 April 1925
(S) RADM OGAWA Ryu (1903) - 27 April 1925 - 1 December 1925
(S) CAPT / (S) RADM MIYAKAWA Masao (1901) - 1 December 1925 - 10 December 1928
(S) RADM ORIMO Tsuneji (1904) - 10 December 1928 - 30 November 1929
(S) RADM IMAYOSHI Masakichi (1904) - 30 November 1929 - 1 December 1931
(S) RADM FUSEJIMA Tadao (1906) - 1 December 1931 - 15 November 1934
(S) RADM SUGAWARA Sahei (1911) - 15 November 1934 - 15 November 1935
(S) RADM MASHITA Rokusaburo (1910) - 15 November 1935 - 21 September 1936
(S) RADM NAKANO Taro (1910) - 21 September 1936 - 15 November 1938
(S) RADM TANAKA Higotaro (1912) - 15 November 1938 - 15 November 1939
(S) RADM TAGAWA Sukezo (1915) - 15 November 1939 - 15 November 1940
(S) RADM / (S) VADM WAKAO Yoshiho (1914) - 15 November 1940 - 1 November 1943
(S) RADM / (S) VADM MATSUMOTO Cho (1918) - 1 November 1943 - 1 November 1944
(S) VADM ISHIGURO Yoshio (1916) - 1 November 1944 - 15 October 1945

Executive Officers
??? - 20 May 1893 - 7 October 1903
(S) CAPT OTA Yataro (1886) - 7 October 1903 - 13 February 1904
(S) CDR / (S) CAPT KUWABARA Sokichi (Cradle) - 13 February 1904 - 9 October 1907
(S) CAPT NAKAO Taichiro (1887) - 9 October 1907 - 1 December 1910
??? - 1 December 1910 - 25 April 1912
(S) CAPT NISHI Isao (1891) - 25 April 1912 - 1 December 1913
??? - 1 December 1913 - 20 August 1914
(S) CAPT OISHI Shigekichi (1891) - 20 August 1914 - 1 December 1914
??? - 1 December 1914 - 1 December 1917
(S) CAPT KATO Yasukichi (1896) - 1 December 1917 - 1 December 1920
(S) CAPT MIYAO Nobuharu (1898) - 1 December 1920 - 7 June 1921
??? - 7 June 1921 - 15 October 1945

1st Bureau Chiefs
??? - 20 May 1893 - 25 April 1912
(S) CAPT NISHI Isao (1891) - 25 April 1912 - 1 December 1913
??? - 1 December 1913 - 20 August 1914
(S) CAPT OISHI Shigekichi (1891) - 20 August 1914 - 1 December 1914
??? - 1 December 1914 - 1 December 1916
(S) CAPT KATO Yasukichi (1896) - 1 December 1916 - 1 December 1920
??? - 1 December 1920 - 20 November 1921
(S) CAPT KUWAHARA Kataaki (1898) - 20 November 1921 - 1 December 1923
(S) CAPT KUROIWA Kenzo (1902) - 1 December 1923 - 6 January 1925
??? - 6 January 1925 - 7 April 1925
(S) CAPT IMAYOSHI Masakichi (1904) - 7 April 1925 - 10 December 1928
(S) CAPT SUGA Minoru (1909) - 10 December 1928 - 30 November 1929
??? - 30 November 1929 - 15 November 1935
(S) CAPT MATSUMOTO Cho (1918) - 15 November 1935 - 15 November 1938
(S) CAPT KANAZAWA Shintaro (1916) - 15 November 1938 - 15 November 1939
(S) CAPT / (S) RADM GOTO Kosaburo (1916) - 15 November 1939 - 5 November 1943
(S) CAPT HONMA Masato (1919) - 5 November 1943 - 1 November 1944
??? - 1 November 1944 - 15 October 1945

2nd Bureau Chiefs
??? - 20 May 1893 - 15 September 1910
(S) CAPT NAKAO Taichiro (1887) - 15 September 1910 - 1 December 1910
??? - 1 December 1910 - 13 December 1915
(S) CDR KURITA Shunzo (1897) - 13 December 1915 - 1 December 1916
??? - 1 December 1916 - 30 November 1919
(S) CAPT MIYAO Nobuharu (1898) - 30 November 1919 - 1 December 1922
(S) CAPT OBO Kumao (1900) - 1 December 1922 - 10 November 1925
(S) CAPT FUKUSHIMA Hideshi (1907) - 10 November 1925 - 10 December 1928
??? - 10 December 1928 - 1 December 1936
(S) CAPT TAKAHASHI Yutaka (1916) - 1 December 1936 - 1 December 1937
(S) CAPT SUGIMOTO Toyomatsu (1916) - 1 December 1937 - 15 October 1940
(S) CAPT NAKAMURA Michitaka (1917) - 15 October 1940 - 1 October 1942
(S) CAPT ITO Shinichi (1917) - 1 October 1942 - 10 November 1943
(S) CAPT MATSUNO Kinji (1922) - 10 November 1943 - 10 November 1944
??? - 10 November 1944 - 15 October 1945

Disinfection Center Chiefs
??? - 20 May 1893 - 17 May 1907
(S) LT KUWAHARA Kataaki (1898) - 17 May 1907 - 5 August 1907
??? - 5 August 1907 - 9 October 1907
(S) CAPT NAKAO Taichiro (1887) - 9 October 1907 - 1 December 1910
??? - 1 December 1910 - 24 May 1913
(S) CDR YOSHIKAWA Ikuzo (1892) - 24 May 1913 - 1 December 1913
??? - 1 December 1913 - 13 December 1915
(S) CDR KURITA Shunzo (1897) - 13 December 1915 - 1 December 1916
(S) CAPT KATO Yasukichi (1896) - 1 December 1916 - 1 December 1917
??? - 1 December 1917 - 30 November 1919
(S) CAPT MIYAO Nobuharu (1898) - 30 November 1919 - 1 December 1920
??? - 1 December 1920 - 15 October 1945

Bureau of Disinfection
??? - 20 May 1893 - 28 September 1907
(S) CAPT NAKAO Taichiro (1887) - 28 September 1907 - 1 December 1910
??? - 1 December 1910 - 24 May 1913
(S) CDR YOSHIKAWA Ikuzo (1892) - 24 May 1913 - 1 December 1913
??? - 1 December 1913 - 7 June 1921
(S) CAPT MIYAO Nobuharu (1898) - 7 June 1921 - 1 December 1922
(S) CAPT OBO Kumao (1900) - 1 December 1922 - 10 November 1925
(S) CAPT FUKUSHIMA Hisashi (1907) - 10 November 1925 - 10 December 1928
??? - 10 December 1928 - 1 December 1936
(S) CAPT TAKAHASHI Yutaka (1916) - 1 December 1936 - 1 December 1937
(S) CAPT SUGIMOTO Toyomatsu (1916) - 1 December 1937 - 15 October 1940
(S) CAPT NAKAMURA Michitaka (1917) - 15 October 1940 - 1 October 1942
(S) CAPT ITO Shinichi (1917) - 1 October 1942 - 10 November 1943
(S) CAPT MATSUNO Kinji (1922) - 10 November 1943 - 10 November 1944
??? - 10 November 1944 - 15 October 1945

Bureau of Pharmaceuticals
??? - 20 May 1893 - 1 December 1922
(A) LCDR / (A) CDR SAKAMOTO Sataro (1911) - 1 December 1922 - 1 December 1930 (Acting)
(A) CDR SHIMIZU Tatsuta (1919) - 1 December 1930 - 15 November 1932
(A) LCDR / (A) CDR TOMARU Toshio (1917) - 15 November 1932 - 1 November 1933
(A) LCDR / (A) CDR / (A) CAPT MURATA Suguru (1918) - 1 November 1933 - 1 August 1941
??? - 1 August 1941 - 15 October 1945

Heads of Nurse Training Center
??? - 20 May 1893 - 7 October 1903
(S) CAPT OTA Yataro (1886) - 7 October 1903 - 13 February 1904
(S) CDR / (S) CAPT KUWABARA Sokichi (1883) - 13 February 1904 - 9 October 1907
(S) CAPT NAKAO Taichiro (1887) - 9 October 1907 - 1 December 1910
??? - 1 December 1910 - 24 May 1913
(S) CDR YOSHIKAWA Ikuzo (1892) - 24 May 1913 - 1 December 1913
??? - 1 December 1913 - 13 December 1915
(S) CDR KURITA Shunzo (1897) - 13 December 1915 - 1 December 1916
??? - 1 December 1916 - 30 November 1919
(S) CAPT MIYAO Nobuharu (1898) - 30 November 1919 - 1 December 1920
??? - 1 December 1920 - 15 October 1945

Staff Officers
Surgeon
(S) CDR IMAYOSHI Masakichi (1904) - 7 June 1921 - 10 June 1922
(S) LCDR MUKOYAMA Yoshihiro (1911) - 7 June 1921 - 10 June 1922
(S) LT ISHIGURO Yoshio (1916) - 7 June 1921 - 1 May 1922
(S) LTJG DOBETA Sugizo (1918) - 7 June 1921 - 1 December 1921
(S) LTJG AKUNA Mutsumi (1919) - 7 June 1921 - 6 September 1921
(S) ENS TSUTOMI Takashi (1919) - 7 June 1921 - 1 July 1921
(S) LTJG AMANO Senkichi (1918) - 4 July 1921 - 7 September 1921
(S) LT HOTTA Chikayuki (1913) - 6 October 1921 - 1 May 1922
(S) LT TAKEMASA Shinpei (1914) - 14 October 1921 - 1 December 1922
(S) ENS / (S) LTJG YOSHIDA Hajime (1919) - 28 October 1921 - 15 March 1922
(S) LCDR TANAKA Asazo (1909) - 1 December 1921 - 1 December 1922
(S) LTJG NAKAMURA Michitaka (1917) - 1 December 1921 - 25 July 1922
(S) LTJG KAWASHIMA Hideshi (1918) - 10 June 1922 - 20 January 1923
(S) CDR ORIMO Tsuneji (1904) - 10 June 1922 - 1 December 1922
(S) CDR YANO Tamaki (1907) - 1 December 1922 - 10 May 1923
(S) LTJG NAGAOKI Moriyasu (1919) - 20 January 1923 - 20 June 1923
(S) LT SUGIMOTO Toyomatsu (1916) - 11 June 1923 - 21 January 1924
(S) LT TAKATA Rokuro (1916) - 16 July 1923 - 1 October 1923
(S) LCDR NAKANO Taro (1910) - 13 August 1923 - 20 November 1924
(S) LTJG DOBETA Sugizo (1918) - 15 September 1923 - 10 November 1923
(S) LT KUROKI Morihide (1917) - 10 November 1923 - 9 August 1924
(S) CDR MARUTA Koji (1908) - 1 December 1923 - 1 December 1924
(S) LT HOTTA Chikayuki (1913) - 21 January 1924 - 1 December 1924
(S) LT AKUNE Mutsumi (1919) - 1 May 1924 - 1 April 1925
(S) LTJG ODA Kazuaki (1920) - 1 May 1924 - 21 October 1924
(S) LT MATSUO Masamichi (1918) - 1 December 1924 - 1 December 1925
(S) CDR FUSEJIMA Tadao (1906) - 8 January 1925 - 1 December 1925
(S) LT SUGIMOTO Toyomatsu (1916) - 31 July 1925 - 1 December 1925
(S) LCDR IMOKAWA Chiaki (1912) - 25 September 1925 - 15 June 1927
(S) LCDR KANBAYASHI Yoshiharu (1917) - 10 November 1925 - 1 February 1927
(S) LT / (S) LCDR YAMANOUCHI Shuzo (1916) - 1 April 1926 - 1 December 1927
(S) CDR SUGA Minoru (1909) - 1 November 1926 - 10 December 1928
(S) LCDR MATSUMOTO Cho (1918) - 1 November 1926 - 15 February 1928
(S) LT ODA Kazuaki (1920) - 1 December 1926 - 1 June 1927
(S) LCDR YANO Yoshio (1919) - 1 April 1927 - 10 March 1929
(S) LT NAGAOKI Moriyasu (1919) - 5 September 1927 - 20 September 1928
(S) LT DOBETA Sugizo (1918) - 1 December 1927 - 1 April 1928
(S) LCDR SUGATA Naoki (1915) - 1 April 1928 - 18 December 1928
(S) LCDR NAKAMURA Michitaka (1917) - 25 April 1928 - 10 December 1928
(S) LCDR KUROKI Morihide (1917) - 1 July 1928 - 20 February 1929
(S) LCDR IMADA Ibuo (1916) - 1 December 1928 - 1 December 1930
(S) LCDR YAMANOUCHI Shuzo (1916) - 10 December 1928 - 1 December 1930
(S) LT MATSUNO Kinji (1922) - 1 April 1929 - 1 April 1930
(S) CDR ISHIGURO Yoshio (1916) - 1 April 1930 - 1 December 1930
(S) LCDR OGAWA Junkichi (1916) - 1 December 1930 - 1 December 1932
(S) LCDR SUDO Iwao (1917) - 1 December 1930 - 1 December 1932
(S) LCDR MATSUMOTO Cho (1918) - 1 December 1931 - 15 September 1933
(S) CDR YASUYAMA Kodo (1917) - 1 December 1931 - 1 December 1932
(S) LCDR KOTATSU Kappei (1922) - 1 December 1931 - 20 September 1932
(S) CDR OSUGA Tomiji (1916) - 20 April 1932 - 15 November 1932
(S) LCDR / (S) CDR NAKAMURA Michitaka (1917) - 20 July 1932 - 1 December 1936
(S) CDR KOBAYASHI Kengo (1916) - 20 September 1932 - 15 November 1933
(S) CDR YAMANOUCHI Shuzo (1916) - 1 December 1932 - 10 March 1934
(S) LCDR ITO Shinichi (1917) - 1 December 1932 - 15 November 1933
(S) LCDR / (S) CDR TSUTOMI Takashi (1919) - 2 August 1933 - 1 December 1936
(S) LCDR / (S) CDR MATSUO Masamichi (1918) - 15 November 1933 - 15 November 1935
(S) CDR KUROKI Morihide (1917) - 15 November 1933 - 15 November 1934
(S) CDR YASUYAMA Kodo (1917) - 15 November 1934 - 1 December 1936
(S) CDR SUGIMOTO Toyomatsu (1916) - 15 November 1934 - 31 October 1935
(S) LCDR ODA Kazuaki (1920) - 15 November 1934 - 31 October 1935
(S) CDR SHIMAZAKI Tadashi (1918) - 31 October 1935 - 1 November 1937
(S) CDR GOTO Kosaburo (1916) - 31 October 1935 - 1 December 1936
(S) LCDR / (S) CDR AMANO Naoe (1922) - 1 December 1936 - 25 September 1941
(S) CDR NAGAOKI Moriyasu (1919) - 1 December 1936 - 15 December 1938
(S) CDR SAKURAI Tokuichi (1920) - 1 December 1936 - 15 November 1938
(S) CDR TERAKADO Masafumi (1921) - 1 December 1937 - 15 November 1939
(S) CDR DOBETA Sugizo (1918) - 1 December 1938 - 15 October 1939

Apothecary
(A) LTJG / (A) LT MURATA Suguru (1918) - 7 June 1921 - 10 April 1925
(A) LTJG / (A) LT TOMARU Toshio (1916) - 20 November 1922 - 29 August 1924
(A) LT ICHIJO Shoichi (1918) - 10 July 1924 - 1 December 1927
(A) LCDR TOMARU Toshio (1916) - 30 November 1929 - 15 November 1932

Adjutants
(S) CDR IMAYOSHI Masakichi (1904) - 7 June 1921 - 10 June 1922
(S) LT HOTTA Chikayuki (1913) - 1 December 1921 - 1 May 1922
(S) LCDR MUKOYAMA Yoshihiro (1911) - 1 December 1921 - 1 April 1922
(S) LCDR TANAKA Asazo (1909) - 1 April 1922 - 1 December 1922
(S) CDR ORIMO Tsuneji (1904) - 10 June 1922 - 1 December 1922
(S) CDR YANO Tamaki (1907) - 1 December 1922 - 10 May 1923
(S) LT HOTTA Chikayuki (1913) - 10 May 1924 - 1 December 1924
(S) CDR KOBAYASHI Kengo (1916) - 15 November 1932 - 15 November 1933
(S) CDR NAKAMURA Michitaka (1917) - 15 November 1934 - 1 December 1936
(S) CDR AMANO Naoe (1922) - 15 November 1939 - 1 November 1940

[ijnfleetadmiral]

Is the following correct for MAMIYA?

Surgeons
LT (Med.) HATTORI Shuji (1916) - 15 July 1924 - 31 July 1925

Paymasters
LCDR (Sup.) MAEDA Nisaburo (Pay. 10) - 1 December 1933 - 15 November 1934
LCDR (Sup.) SHIMURA Misao (Pay. 10) - 15 November 1934 - 15 November 1937
LCDR (Sup.) KOFU Kinjiro (Pay. 9) - 15 November 1937 - 15 December 1938

[fontessa]

Surgeons
LT (Med.) HATTORI Shuji (1916) - 15 July 1924 - 31 July 1925

Yes, correct.

Paymasters
LCDR (Sup.) MAEDA Nisaburo (Pay. 10) - 1 December 1933 - 15 November 1934
LCDR (Sup.) SHIMURA Misao (Pay. 10) - 15 November 1934 - 15 November 1937
LCDR (Sup.) KOFU Kinjiro (Pay. 9) - 15 November 1937 - 15 December 1938

LCDR / LCDR MAEDA Nisaburo (Pay.10): 1 December 1933 - 31 October 1935
LCDR / LCDR KATO Isao 加藤勲 (Pay.8): 31 October 1935 - 16 November 1936
LCDR / LCDR SHIMURA Misao (Pay.10): 16 November 1936 - 15 November 1937
LCDR / LCDR KOFU Kinjiro (Pay. 9): 15 November 1937 - 15 December 1938
LCDR / LCDR OGASHIWA Naoe 小柏直衛 (Pay.12): 15 December 1938 - 15 October 1939


One question about Naval Hospital
Unfortunately, I have no detailed data about Naval Hospital.
But I think 1st and 2nd Departments (Bureaus) were Internal Medicine and Surgery.
Do you know which was which?

fontessa

[ijnfleetadmiral]

Awesome...thanks for the MAMIYA info! Is the following correct for her as well?

Executive Officers
VACANT - 15 October 1940 - 21 December 1944

As to which Departments were which in the Naval Hospitals, I don't have a clue, sorry.

[ijnfleetadmiral]

Here are the last two Naval Hospitals. TIA for anyone who can fill in any blanks.

Kure Naval Hospital
Directors
(S) CAPT TOYOZUMI Hidekata (Cradle) - 1 April 1889 - 22 April 1889
??? - 22 April 1889 - 20 May 1893
(S) CAPT MITAMURA Tadakuni (1884) - 20 May 1893 - 25 September 1894
??? - 25 September 1894 - 16 July 1895
(S) CAPT TOTSUKA Kankai (Cradle) - 16 July 1895 - 16 December 1896
(S) CAPT MITAMURA Tadakuni (1884) - 16 December 1896 - 8 October 1897
(S) LCDR / (S) CDR YOSHIMURA Susumu (1885) - 8 October 1897 - 27 December 1897 (Acting)
(S) CAPT YOSHIMURA Susumu (1885) - 27 December 1897 - 25 May 1900
(S) CAPT YAMAMOTO Kageyuki (Cradle) - 25 May 1900 - 29 November 1900
(S) RADM KAWAMURA Hoshu (Cradle) - 29 November 1900 - 1 October 1901
(S) CAPT TSURUTA Shikakichi (Cradle) - 1 October 1901 - 27 May 1902
(S) RADM YOSHIDA Teijun (1886) - 27 May 1902 - 10 November 1903
(S) RADM SUZUKI Konosuke (Cradle) - 10 November 1903 - 7 January 1905
(S) CAPT YOSHIMURA Susumu (1885) - 7 January 1905 - 12 January 1905
(S) RADM YAMAMOTO Kageyuki (Cradle) - 12 January 1905 - 13 December 1905
(S) RADM TSURUTA Shikakichi (Cradle) - 13 December 1905 - 1 December 1910
(S) CAPT / (S) RADM KUWABARA Sokichi (Cradle) - 1 December 1910 - 1 December 1913
(S) RADM USUI Hiroshi (1887) - 1 December 1913 - 1 December 1916
(S) CAPT / (S) RADM SUZUKI Yuzo (1889) - 1 December 1916 - 1 December 1917
(S) RADM OISHI Shigekichi (1891) - 1 December 1917 - 1 June 1919
(S) RADM YOSHIKAWA Ikuzo (1892) - 1 June 1919 - 1 December 1923
(S) RADM AMAMIYA Ryoshichiro (1899) - 1 December 1923 - 1 December 1924
(S) RADM FUKUDA Ryo (1899) - 1 December 1924 - 1 December 1925
(S) RADM KOBAYASHI Mikio (1902) - 1 December 1925 - 1 December 1926
(S) RADM KUROIWA Kenzo (1902) - 1 December 1926 - 1 December 1927
(S) RADM KUSANO Tadao (1905) - 1 December 1927 - 10 December 1928
(S) RADM TAKASUGI Shinichiro (1906) - 10 December 1928 - 30 November 1929
(S) RADM UJIIE Kojiro (1904) - 30 November 1929 - 1 December 1930
(S) RADM FUKUSHIMA Hisashi (1907) - 1 December 1930 - 15 November 1933
(S) RADM MUKOYAMA Yoshihiro (1911) - 15 November 1933 - 15 November 1934
(S) RADM TANAKA Asazo (1909) - 15 November 1934 - 15 November 1935
(S) RADM SUGAWARA Sahei (1911) - 15 November 1935 - 15 November 1938
(S) RADM NAKANO Taro (1910) - 15 November 1938 - 1 March 1939
(S) RADM HORI Nobuaki (1912) - 1 March 1939 - 15 November 1939
(S) RADM TAKAGI Takashi (1912) - 15 November 1939 - 15 October 1941
(S) RADM TAGAWA Sukezo (1915) - 15 October 1941 - 1 November 1942
(S) RADM KANBAYASHI Yoshiharu (1917) - 1 November 1942 - 25 October 1943
(S) RADM / (S) VADM FUKUI Nobutatsu (1917) - 25 October 1943 - 1 November 1944
??? - 1 November 1944 - 15 October 1945

Executive Officers
??? - 1 April 1889 - 25 December 1899
(S) CDR ISHIHARA Sumikata (1884) - 25 December 1899 - 25 May 1900
(S) CAPT YOSHIMURA Susumu (1885) - 25 May 1900 - 29 November 1900
(S) CAPT ISHIGURO Uchuji (1886) - 29 November 1900 - 1 May 1903
(S) CAPT YOSHIMURA Susumu (1885) - 1 May 1903 - 7 January 1905
(S) CDR / (S) CAPT ISHIHARA Sumikata (1884) - 7 January 1905 - 1 December 1910
??? - 1 December 1910 - 1 December 1914
(S) CAPT YOKOCHI Kimito (1891) - 1 December 1914 - 1 December 1917
??? - 1 December 1917 - 1 December 1918
(S) CAPT YAMAMOTO Hidetada (1897) - 1 December 1918 - 7 June 1921
??? - 7 June 1921 - 15 October 1945

1st Bureau Chiefs
??? - 1 April 1889 - 15 September 1910
(S) CDR / (S) CAPT NISHI Isao (1891) - 15 September 1910 - 25 April 1912
??? - 25 April 1912 - 1 December 1914
(S) CAPT YOKOCHI Kimito (1891) - 1 December 1914 - 1 December 1917
(S) CAPT TATENO Itaru (1899) - 1 December 1917 - 25 June 1918
(S) CDR ONUKI Yasuzo (1898) - 25 June 1918 - 9 July 1918
??? - 9 July 1918 - 2 August 1918
(S) CDR ONUKI Yasuzo (1898) - 2 August 1918 - 1 December 1918
(S) CAPT YAMAMOTO Hidetada (1897) - 1 December 1918 - 1 December 1921
(S) RADM KATO Yasukichi (1896) - 1 December 1921 - 10 November 1922
??? - 10 November 1922 - 1 December 1922
(S) CAPT HATTORI Seiichi (1899) - 1 December 1922 - 1 December 1923
(S) CAPT HASHIMOTO Masanao (1905) - 1 December 1923 - 1 December 1924
??? - 1 December 1924 - 8 June 1925
(S) CAPT IMAZAWA Masafuyu (1903) - 8 June 1925 - 16 May 1927
(S) CAPT YANO Tamaki (1907) - 16 May 1927 - 30 November 1929
(S) CAPT MASHITA Rokusaburo (1910) - 30 November 1929 - 1 December 1931
(S) CAPT SUGA Minoru (1909) - 1 December 1931 - 15 November 1934
??? - 15 November 1934 - 1 December 1936
(S) CAPT UEHARA Junnosuke (1915) - 1 December 1936 - 15 November 1938
(S) CAPT TANABE Yutaka (1915) - 15 November 1938 - 15 November 1939
(S) CAPT KANAZAWA Shintaro (1916) - 15 November 1939 - 20 November 1941
??? - 20 November 1941 - 10 October 1942
(S) CAPT TAKATA Rokuro (1916) - 10 October 1942 - 25 October 1942
(S) CAPT SEKUZU Eiichi (1921) - 25 October 1942 - 1 October 1943
(S) CAPT / (S) RADM* TAMURA Akira (1920) - 1 October 1943 - 16 June 1944 (DONC)
??? - 16 June 1944 - 15 October 1945

2nd Bureau Chiefs
??? - 1 April 1889 - 15 September 1910
(S) CAPT ISHIHARA Sumikata (1884) - 15 September 1910 - 1 December 1910
??? - 1 December 1910 - 1 December 1914
(S) CAPT NAKAGAWA Heihachi (1893) - 1 December 1914 - 13 December 1915
??? - 13 December 1915 - 1 December 1916
(S) CAPT AMAMIYA Ryoshichiro (1899) - 1 December 1916 - 1 December 1917
??? - 1 December 1917 - 10 December 1918
(S) CAPT NAKAJIMA Etsuro (1898) - 10 December 1918 - 1 December 1920
(S) CAPT ARAI Keizaburo (1898) - 1 December 1920 - 10 November 1923
(S) CDR YAMASHITA Tomoyoshi (1903) - 10 November 1923 - 1 December 1923 (Acting)
(S) CAPT YAMASHITA Tomoyoshi (1903) - 1 December 1923 - 1 December 1925
(S) CAPT ABE Bungoro (1908) - 1 December 1925 - 1 May 1927
(S) CAPT UJIIE Kojiro (1904) - 1 May 1927 - 10 December 1928
??? - 10 December 1928 - 1 December 1930
(S) CAPT FUKADA Kanichi (1911) - 1 December 1930 - 1 October 1931
(S) CAPT KATSU Shokichi (1909) - 1 October 1931 - 14 November 1931
(S) CAPT HORI Nobuaki (1912) - 14 November 1931 - 1 December 1932
(S) CAPT KOGANEI Ryoichi (1915) - 1 December 1932 - 15 November 1933
(S) CAPT HIKI Yoshiyuki (1912) - 15 November 1933 - 15 November 1934
(S) CAPT KOBAYASHI Kengo (1916) - 15 November 1934 - 15 November 1935
??? - 15 November 1935 - 1 December 1936
(S) CAPT SUGATA Naoki (1915) - 1 December 1936 - 15 November 1940
(S) CAPT TAKATA Rokuro (1916) - 15 November 1940 - 25 October 1942
(S) CAPT ITAKURA Shun (1922) - 25 October 1942 - 15 November 1944
??? - 15 November 1944 - 15 October 1945

Bureau of Disinfection
??? - 1 April 1889 - 1 December 1930
(S) CAPT FUKADA Kanichi (1911) - 1 December 1930 - 1 October 1931
(S) CAPT KATSU Shokichi (1909) - 1 October 1931 - 14 November 1931
(S) CDR HORI Nobuaki (1912) - 14 November 1931 - 1 December 1932
(S) CAPT KOGANEI Ryoichi (1915) - 1 December 1932 - 15 November 1933
(S) CAPT HIKI Yoshiyuki (1912) - 15 November 1933 - 15 November 1934
(S) CAPT KOBAYASHI Kengo (1916) - 15 November 1934 - 15 November 1935
??? - 15 November 1935 - 1 December 1936
(S) CAPT SUGATA Naoki (1915) - 1 December 1936 - 15 November 1940
(S) CAPT TAKATA Rokuro (1916) - 15 November 1940 - 25 October 1942
(S) CAPT ITAKURA Shun (1922) - 25 October 1942 - 15 November 1944
??? - 15 November 1944 - 15 October 1945

Bureau of Pharmaceuticals
??? - 1 April 1889 - 10 November 1925
(A) LCDR / (A) CDR TAMAMUSHI Yuzo (1916) - 10 November 1925 - 30 November 1929
??? - 30 November 1929 - 1 November 1933
(A) CDR TOMARU Toshio (1917) - 1 November 1933 - 1 December 1936
(A) CDR / (A) CAPT ICHIJO Shoichi (1918) - 1 December 1936 - 3 June 1942
??? - 3 June 1942 - 15 October 1945

Heads of Nurse Training Center
??? - 1 April 1889 - 25 May 1900
(S) CAPT YOSHIMURA Susumu (1885) - 25 May 1900 - 29 November 1900
(S) CAPT ISHIGURO Uchuji (1886) - 29 November 1900 - 1 May 1903
(S) CAPT YOSHIMURA Susumu (1885) - 1 May 1903 - 7 January 1905
(S) CDR / (S) CAPT ISHIHARA Sumikata (1884) - 7 January 1905 - 15 September 1910
(S) CDR / (S) CAPT NISHI Isao (1891) - 15 September 1910 - 25 April 1912
??? - 25 April 1912 - 1 December 1914
(S) CAPT NAKAGAWA Heihachi (1893) - 1 December 1914 - 13 December 1915
??? - 13 December 1915 - 1 December 1916
(S) CAPT AMAMIYA Ryoshichiro (1899) - 1 December 1916 - 1 December 1917
(S) CAPT TATENO Itaru (1899) - 1 December 1917 - 25 June 1918
(S) CDR ONUKI Yasuzo (1898) - 25 June 1918 - 9 July 1918
??? - 9 July 1918 - 2 August 1918
(S) CDR ONUKI Yasuzo (1898) - 2 August 1918 - 10 December 1918
(S) CAPT NAKAJIMA Etsuro (1898) - 10 December 1918 - 1 December 1920
(S) CAPT ARAI Keizaburo (1898) - 1 December 1920 - 10 November 1923
??? - 10 November 1923 - 15 October 1945

Staff Officers
Surgeon
(S) LCDR / (S) CDR ABE Bungoro (1908) - 7 June 1921 - 6 January 1925
(S) LCDR SATAKE Zenji (1908) - 7 June 1921 - 1 December 1921
(S) CDR / (S) CAPT KUSANO Tadao (1905) - 1 December 1921 - 1 December 1923
(S) LTJG OKUBO Shin (1918) - 1 April 1922 - 4 December 1922
(S) LT GOTO Kosaburo (1916) - 15 May 1922 - 8 May 1923
(S) LCDR / (S) CDR AIDA Tsuneji (1906) - 14 October 1922 - 1 December 1924
(S) LTJG KIZU Einosuke (1921) - 20 November 1922 - 10 May 1923
(S) LTJG TAMURA Akira (1920) - 1 December 1922 - 10 November 1923
(S) LTJG KOTATSU Kappei (1922) - 1 December 1922 - 10 March 1923
(S) LT TSUZUKI Masao (1917) - 4 December 1922 - 1 April 1923
(S) LTJG MATSUNO Kinji (1922) - 1 February 1923 - 10 May 1923
(S) CAPT SUNABORI Masato (1899) - 1 April 1923 - 11 June 1923
(S) LT KANAZAWA Shintaro (1916) - 11 June 1923 - 10 November 1923
(S) LT TAKEMASA Shinpei (1914) - 15 October 1923 - 1 December 1923
(S) LT KANDATSU Kinsaku (1917) - 10 November 1923 - 1 December 1924
(S) CDR FUSEJIMA Tadao (1906) - 1 December 1923 - 1 December 1924
(S) LCDR MASHITA Rokusaburo (1910) - 1 December 1923 - 13 June 1924
(S) LCDR TOYODA Minoru (1911) - 1 December 1923 - 1 May 1924
(S) LTJG TAMURA Akira (1920) - 1 December 1924 - 1 December 1926
(S) LCDR IMOKAWA Chiaki (1912) - 1 December 1924 - 25 September 1925
(S) LT SUDO Iwao (1917) - 10 April 1925 - 1 April 1926
(S) LT / (S) LCDR TANABE Yutaka (1915) - 31 July 1925 - 10 May 1926
(S) LT TAKEI Hiizu (1920) - 18 September 1925 - 1 April 1926
(S) LT AMANO Senkichi (1918) - 1 December 1925 - 1 December 1926
(S) LT YAKABE Gunji (1917) - 1 December 1925 - 1 April 1926
(S) CDR KATSU Shokichi (1909) - 1 February 1926 - 10 December 1928
(S) LT OGAWA Junkichi (1916) - 1 April 1926 - 1 December 1927
(S) LT TAKAHASHI Yutaka (1916) - 1 April 1926 - 1 December 1926
(S) LT ITO Shunkichi (1918) - 5 June 1926 - 15 March 1927
(S) LCDR SUGATA Naoki (1915) - 1 December 1926 - 6 April 1927
(S) LCDR AKUNE Mutsumi (1919) - 1 April 1927 - 1 March 1929
(S) LT SHIMAZAKI Tadashi (1918) - 1 April 1928 - 10 September 1928
(S) LT MURATA Saburo (1921) - 1 December 1927 - 10 December 1928
(S) LCDR / (S) CDR TAKATA Rokuro (1916) - 10 December 1928 - 1 November 1932
(S) LT KOTATSU Kappei (1922) - 1 April 1929 - 1 December 1930
(S) LCDR SUGIMOTO Toyomatsu (1916) - 15 June 1929 - 30 November 1929
(S) CDR HOTTA Chikayuki (1913) - 30 November 1929 - 1 December 1931
(S) LCDR SEKUZU Eiichi (1921) - 1 April 1930 - 1 March 1931
(S) LT / (S) LCDR OTAGAWA Hajime (1920) - 1 June 1930 - 1 December 1931
(S) LT HIROKAWA Wataru (1926) - 20 November 1930 - 16 July 1931
(S) CDR KOGANEI Ryoichi (1915) - 1 December 1930 - 1 December 1931
(S) LCDR HASEGAWA Seiichi (1917) - 1 March 1931 - 1 December 1932
(S) LCDR / (S) CDR KUROKI Morihide (1917) - 1 December 1931 - 11 January 1933
(S) CDR KANAZAWA Shintaro (1916) - 1 December 1931 - 1 December 1932
(S) CDR SUGATA Naoki (1915) - 1 December 1931 - 1 November 1932
(S) CDR SUGIMOTO Toyomatsu (1916) - 1 November 1932 - 1 December 1933
(S) LCDR / (S) CDR KATAOKA Katsumi (1919) - 1 December 1932 - 1 December 1937
(S) CDR YANO Yoshio (1919) - 1 December 1932 - 15 November 1935
(S) LCDR SAKURAI Tokuichi (1920) - 1 December 1932 - 31 October 1935
(S) LCDR AMANO Senkichi (1918) - 1 December 1932 - 15 November 1933
(S) LCDR USHIKUBO Shigetsune (1918) - 1 September 1933 - 15 November 1934
(S) LCDR / (S) CDR YOSHIDA Hajime (1919) - 15 November 1933 - 1 December 1936
(S) CDR KAWASHIMA Hideshi (1918) - 15 November 1933 - 15 November 1935
(S) CDR / (S) CAPT SUGATA Naoki (1915) - 1 December 1933 - 15 November 1935
(S) LCDR TAKEI Hiizu (1920) - 10 March 1934 - 1 December 1936
(S) LCDR / (S) CDR MURATA Saburo (1921) - 31 October 1935 - 1 November 1938
(S) LCDR / (S) CDR OTAGAWA Hajime (1920) - 15 November 1935 - 15 November 1938
(S) CDR TAKATA Rokuro (1916) - 15 November 1935 - 1 December 1936
(S) CDR ITAKURA Shun (1922) - 16 September 1937 - 15 November 1939
(S) CDR HIROKAWA Wataru (1926) - 15 November 1939 - 15 November 1940
(S) LCDR / (S) CDR IKEGAMI Yasuo (1925) - 20 September 1941 - 1 August 1943

Apothecary
(A) LT TANAMUSHI Yuzo (1916) - 7 June 1921 - 1 April 1923
(A) LTJG SHIMIZU Tatsuta (1919) - 7 June 1921 - 20 November 1922
(A) LTJG / (A) LT ICHIJO Shoichi (1918) - 20 August 1923 - 10 July 1924
(A) LT MURATA Suguru (1918) - 10 April 1925 - 1 December 1928

Adjutants
(S) LCDR / (S) CDR AIDA Tsuneji (1906) - 20 November 1921 - 1 December 1924
(S) CDR ABE Bungoro (1908) - 15 May 1922 - 1 December 1922
(S) LCDR IMOKAWA Chiaki (1912) - 1 December 1924 - 25 September 1925
(S) LT SUDO Iwao (1917) - 1 December 1925 - 1 April 1926
(S) LT TAKAHASHI Yutaka (1916) - 1 April 1926 - 1 December 1926
(S) CDR KOGANEI Ryoichi (1915) - 1 December 1930 - 1 December 1931
(S) CDR SUGATA Naoki (1915) - 1 December 1931 - 1 November 1932
(S) CDR SUGIMOTO Toyomatsu (1916) - 1 November 1932 - 1 December 1933
(S) CDR SUGATA Naoki (1915) - 1 December 1933 - 10 May 1934
(S) LCDR KATAOKA Katsumi (1919) - 10 May 1934 - 15 November 1934
(S) LT SASAKI Hiroshi (1935) – 15 November 1939 – 1 November 1940

Yokosuka Naval Hospital
Directors
??? - 27 May 1880 - 21 January 1881
(S) LCDR KAGAMI Mitsukata (Cradle) - 21 January 1881 - 20 July 1882
??? - 20 July 1882 - 22 July 1885
(S) CDR KAWAMURA Hoshu (Cradle) - 22 July 1885 - 12 April 1886
??? - 12 April 1886 - 20 May 1893
(S) CAPT TOYOZUMI Hidekata (Cradle) - 20 May 1893 - 20 June 1894
(S) CAPT TOTSUKA Kankai (Cradle) - 20 June 1894 - 17 August 1894
(S) CAPT SUZUKI Konosuke (Cradle) - 17 August 1894 - 16 February 1895
??? - 16 February 1895 - 23 August 1895
(S) CAPT YOSHIDA Teijun (1886) - 23 August 1895 - 13 August 1896
(S) CAPT MITAMURA Tadakuni (1884) - 13 August 1896 - 16 December 1896
??? - 16 December 1896 - 15 December 1897
(S) CDR TSURUTA Shikakichi (Cradle) - 15 December 1897 - 27 December 1897 (Acting)
(S) CAPT TSURUTA Shikakichi (Cradle) - 27 December 1897 - 14 September 1898
(S) CAPT YAMAMOTO Kageyuki (Cradle) - 14 September 1898 - 25 May 1900
(S) RADM KAWAMURA Hoshu (Cradle) - 25 May 1900 - 29 November 1900
(S) RADM SUZUKI Konosuke (Cradle) - 29 November 1900 - 10 November 1903
(S) CAPT / (S) RADM YAMAMOTO Kageyuki (Cradle) - 10 November 1903 - 12 January 1905
??? - 12 January 1905 - 24 June 1905
(S) CAPT HONDA Tadao (1887) - 24 June 1905 - 4 January 1906
(S) RADM SUZUKI Shigemichi (Cradle) - 4 January 1906 - 20 April 1912
(S) RADM / (S) VADM TOMATSURI Bunzo (1886) - 20 April 1912 - 1 December 1917
(S) VADM YABE Tatsusaburo (1886) - 1 December 1917 - 1 June 1919
(S) RADM OISHI Shigekichi (1891) - 1 June 1919 - 1 December 1921
(S) RADM HIRANO Isamu (1892) - 1 December 1921 - 1 December 1923
(S) RADM TATENO Itaru (1899) - 1 December 1923 - 1 December 1924
(S) RADM / (S) VADM* SUZUKI Kannosuke (1897) - 1 December 1924 - 22 April 1925 (DONC)
VACANT – 22 April 1925 – 27 April 1925
(S) RADM ONUKI Yasuzo (1898) - 27 April 1925 - 1 December 1927
(S) RADM KODA Naka (1905) - 1 December 1927 - 30 November 1929
(S) RADM TAKASUGI Shinichiro (1906) - 30 November 1929 - 25 February 1932
(S) RADM ABE Bungoro (1908) - 25 February 1932 - 15 November 1933
(S) RADM FUKUSHIMA Hisashi (1907) - 15 November 1933 - 15 November 1934
(S) RADM FUSEJIMA Tadao (1906) - 15 November 1934 - 15 November 1935
(S) RADM TANAKA Asazo (1909) - 15 November 1935 - 1 December 1937
(S) RADM / (S) VADM OSADA Katsuyoshi (1911) - 1 December 1937 - 15 December 1938
??? - 15 December 1938 - 1 March 1939
(S) RADM NAKANO Taro (1910) - 1 March 1939 - 15 November 1939
(S) RADM HORI Nobuaki (1912) - 15 November 1939 - 15 October 1941
(S) RADM / (S) VADM TAKAGI Takashi (1912) - 15 October 1941 - 1 November 1943
(S) VADM WAKAO Yoshiho (1914) - 1 November 1943 - 22 October 1945
(S) RADM KANAI Izumi (1918) - 22 October 1945 - 1 December 1945

Executive Officers
(S) LT KAGAMI Mitsukata (Cradle) - 27 May 1880 - 21 January 1881
??? - 21 January 1881 - 8 October 1897
(S) LCDR / (S) CDR HONDA Tadao (1887) - 8 October 1897 - 15 December 1897
??? - 15 December 1897 - 1 October 1898
(S) CDR KUWABARA Sokichi (Cradle) - 1 October 1898 - 22 March 1899
??? - 22 March 1899 - 29 November 1900
(S) CAPT YOSHIMURA Susumu (1885) - 29 November 1900 - 1 October 1901
(S) CAPT OTA Yataro (1886) - 1 October 1901 - 7 October 1903
??? - 7 October 1903 - 9 May 1905
(S) CAPT HONDA Tadao (1887) - 9 May 1905 - 24 June 1905
??? - 24 June 1905 - 12 December 1905
(S) CAPT SAITO Ariki (1884) - 12 December 1905 - 9 October 1907
(S) CAPT KUWABARA Sokichi (Cradle) - 9 October 1907 - 10 December 1908
??? - 10 December 1908 - 1 December 1910
(S) CAPT NAKAO Taichiro (1887) - 1 December 1910 - 22 April 1911
(S) CAPT USUI Hiroshi (1887) - 22 April 1911 - 20 April 1912
(S) CAPT OISHI Shigekichi (1891) - 20 April 1912 - 20 August 1914
??? - 20 August 1914 - 1 December 1917
(S) CAPT YOKOCHI Kimito (1891) - 1 December 1917 - 1 December 1918
(S) CAPT SUZUKI Kannosuke (1897) - 1 December 1918 - 1 June 1919
(S) CAPT KUMAKAWA Motoi (1898) - 1 June 1919 - 5 April 1920
(S) CAPT KURITA Shunzo (1897) - 5 April 1920 - 7 June 1921
??? - 7 June 1921 - 1 December 1945

1st Bureau Chiefs
??? - 27 May 1880 - 15 September 1910
(S) CDR / (S) CAPT OISHI Shigekichi (1891) - 15 September 1910 - 20 August 1914
??? - 20 August 1914 - 1 December 1917
(S) CAPT YOKOCHI Kimito (1891) - 1 December 1917 - 1 December 1918
(S) CAPT SUZUKI Kannosuke (1897) - 1 December 1918 - 1 June 1919
(S) CAPT KOBAYASHI Mikio (1902) - 1 June 1919 - 1 December 1919
(S) CAPT HATTORI Seiichi (1899) - 1 December 1919 - 20 January 1921
(S) CAPT / (S) RADM TATENO Itaru (1899) - 20 January 1921 - 1 December 1923
(S) CAPT SASANO Masato (1905) - 1 December 1923 - 1 December 1924
(S) RADM OGAWA Ryu (1903) - 1 December 1924 - 27 April 1925
(S) CAPT KUSANO Tadao (1905) - 27 April 1925 - 1 December 1926
(S) CAPT FUSEJIMA Tadao (1906) - 1 December 1926 - 30 November 1929
??? - 30 November 1929 - 24 December 1929
(S) CAPT SATAKE Zenji (1908) - 24 December 1929 - 1 December 1931
(S) CAPT MASHITA Rokusaburo (1910) - 1 December 1931 - 15 November 1933
(S) CAPT TAKAGI Takashi (1912) - 15 November 1933 - 15 November 1935
(S) CAPT HOTTA Chikayuki (1913) - 15 November 1935 - 15 November 1938
(S) RADM TAKAGI Takashi (1912) - 15 November 1938 - 15 March 1939
(S) CAPT HOTTA Chikayuki (1913) - 15 March 1939 - 15 November 1939
(S) CAPT UEHARA Junnosuke (1915) - 15 November 1939 - 1 April 1940
(S) CAPT KANDATSU Kinsaku (1917) - 1 April 1940 - 20 September 1941
(S) CAPT YOSHIDA Hajime (1919) - 20 September 1941 - 21 April 1943
??? - 21 April 1943 - 20 May 1943
(S) CAPT KATAOKA Katsumi (1919) - 20 May 1943 - 1 May 1944
??? - 1 May 1944 - 1 December 1945

2nd Bureau Chiefs
??? - 27 May 1880 - 1 December 1910
(S) CAPT NAKAO Taichiro (1887) - 1 December 1910 - 22 April 1911
??? - 22 April 1911 - 1 December 1917
(S) CAPT KUMAKAWA Motoi (1898) - 1 December 1917 - 5 April 1920
??? - 5 April 1920 - 22 April 1911
(S) CAPT USUI Hiroshi (1887) - 22 April 1911 - 20 April 1912
??? - 20 April 1912 - 5 April 1920
(S) CAPT KURITA Shunzo (1897) - 5 April 1920 - 1 December 1921
(S) CAPT NAKAJIMA Etsuro (1898) - 1 December 1921 - 1 December 1923
(S) CAPT TAKEI Mitsuzumi (1903) - 1 December 1923 - 1 May 1926
(S) CAPT IMAI Kinsaburo (1906) - 1 May 1926 - 1 May 1927
(S) CAPT TAKEI Mitsuzumi (1903) - 1 May 1927 - 28 December 1927
(S) CAPT ABE Bungoro (1908) - 28 December 1927 - 10 December 1928
(S) CAPT SUGAWARA Sahei (1911) - 10 December 1928 - 23 October 1929
??? - 23 October 1929 - 10 June 1930
(S) CAPT SUGAWARA Sahei (1911) - 10 June 1930 - 1 December 1930
??? - 1 December 1930 - 10 January 1931
(S) CAPT TOYODA Minoru (1911) - 10 January 1931 - 2 February 1932
(S) CAPT MASHITA Rokusaburo (1910) - 2 February 1932 - 20 April 1932
??? - 20 April 1932 - 15 November 1933
(S) RADM TANAKA Asazo (1909) - 15 November 1933 - 15 November 1934
(S) CAPT TOYODA Minoru (1911) - 15 November 1934 - 15 August 1935
??? - 15 August 1935 - 15 November 1935
(S) CAPT KOBAYASHI Kengo (1916) - 15 November 1935 - 15 November 1939
(S) CAPT OKUBO Shin (1918) - 15 November 1939 - 15 October 1940
(S) CAPT SUGIMOTO Toyomatsu (1916) - 15 October 1940 - 15 October 1941
(S) CAPT KIZU Einosuke (1921) - 15 October 1941 - 10 July 1942
(S) CAPT SUDO Iwao (1917) - 10 July 1942 - 20 January 1943
??? - 20 January 1943 - 1 December 1945

Bureau of Disinfection
??? - 20 May 1880 - 15 January 1943
(S) CAPT SUDO Iwao (1917) - 15 January 1943 - 20 January 1943
??? - 20 January 1943 - 1 December 1945

Bureau of Pharmaceuticals
??? - 27 May 1880 - 30 November 1929
(A) LCDR SHIMIZU Tatsuta (1919) - 30 November 1929 - 1 December 1930
(A) CAPT SAKAMOTO Sataro (1911) - 1 December 1930 - 15 November 1932
(A) CDR / (A) CAPT TAMAMUSHI Yuzo (1916) - 15 November 1932 - 1 December 1936
(A) CDR / (A) CAPT TOMARU Toshio (1917) - 1 December 1936 - 3 June 1942
(A) CAPT ICHIJO Shoichi (1918) - 3 June 1942 - 20 June 1944
??? - 20 June 1944 - 1 December 1945

Heads of Nurse Training Center
??? - 27 May 1880 - 29 November 1900
(S) CAPT YOSHIMURA Susumu (1885) - 29 November 1900 - 1 October 1901
(S) CAPT OTA Yataro (1886) - 1 October 1901 - 13 February 1904
??? - 13 February 1904 - 9 May 1905
(S) CAPT HONDA Tadao (1887) - 9 May 1905 - 24 June 1905
??? - 24 June 1905 - 12 December 1905
(S) CAPT SAITO Ariki (1884) - 12 December 1905 - 9 October 1907
(S) CAPT KUWABARA Sokichi (1883) - 9 October 1907 - 10 December 1908
??? - 10 December 1908 - 15 September 1910
(S) CDR / (S) CAPT OISHI Shigekichi (1891) - 15 September 1910 - 20 April 1912
??? - 20 April 1912 - 1 December 1917
(S) CAPT KUMAKAWA Motoi (1898) - 1 December 1917 - 1 June 1918
??? - 1 June 1918 - 1 December 1919
(S) CAPT HATTORI Seiichi (1899) - 1 December 1919 - 20 January 1921
??? - 20 January 1921 - 1 December 1945

Staff Officers
Surgeon
(S) LT SUGATA Naoki (1915) - 7 June 1921 - 13 July 1922
(S) CDR UJIIE Kojiro (1904) - 7 June 1921 - 10 November 1921
(S) LT MATSUMOTO Cho (1918) - 7 June 1921 - 10 November 1921
(S) LTJG OSUGA Tomiji (1916) - 7 June 1921 - 20 November 1921
(S) ENS KATAOKA Katsumi (1919) - 7 June 1921 - 21 June 1921
(S) LTJG / (S) LT TAKATA Rokuro (1916) - 1 July 1921 - 1 May 1922
(S) LCDR KATSU Shokichi (1909) - 27 September 1921 - 10 November 1921
(S) LT TAGAWA Sukezo (1915) - 1 November 1921 - 1 April 1922
(S) CDR IMAZAWA Masafuyu (1903) - 10 November 1921 - 1 December 1922
(S) LTJG / (S) LT HASEGAWA Seiichi (1917) - 10 November 1921 - 1 December 1922
(S) CDR / (S) CAPT MIYAKAWA Masao (1901) - 18 November 1921 - 1 November 1923
(S) CAPT OGAWA Ryu (1903) - 20 November 1921 - 1 December 1922
(S) LTJG YOKOKURA Seijiro (1921) - 1 December 1921 - 1 June 1922
(S) ENS TERAKADO Masafumi (1921) - 1 December 1921 - 15 May 1922
(S) ENS / (S) LTJG SAKURAI Tokuichi (1920) - 15 May 1922 - 10 February 1923
(S) LT YASUYAMA Kodo (1917) - 10 June 1922 - 20 December 1922
(S) LTJG HONMA Masato (1919) - 6 October 1922 - 4 August 1923
(S) LTJG ITAKURA Shun (1922) - 1 December 1922 - 7 April 1923
(S) ENS AMANO Naoe (1922) - 1 December 1922 - 1 April 1923
(S) LT HASEGAWA Seiichi (1917) - 8 May 1923 - 1 November 1923
(S) CDR MARUTA Koji (1908) - 10 May 1923 - 10 November 1923
(S) LT KANAI Izumi (1918) - 1 December 1923 - 10 September 1924
(S) LTJG ODAJIMA Shokichi (1922) - 1 December 1923 - 10 April 1924
(S) LTJG KAWADA Masashi (1923) - 1 December 1923 - 1 May 1924
(S) LT YANO Yoshio (1919) - 1 May 1924 - 1 April 1925
(S) LT SEKUZU Eiichi (1921) - 1 May 1924 - 2 February 1925
(S) LT / (S) LCDR TAGAWA Sukezo (1915) - 5 July 1924 - 7 March 1925
(S) LTJG SHIINA Saburo (1919) - 1 September 1924 - 29 September 1924
(S) LTJG / (S) LT SHIINA Saburo (1919) - 6 October 1924 - 1 May 1925
(S) CDR SATAKE Zenji (1908) - 1 December 1924 - 1 December 1926
(S) LT TAKAHASHI Yutaka (1916) - 1 December 1924 - 31 July 1925
(S) LT YOKOKURA Seijiro (1921) - 1 April 1925 - 1 April 1926
(S) LCDR / (S) CDR TOYODA Minoru (1911) - 10 April 1925 - 1 December 1926
(S) CDR OSADA Katsuyoshi (1911) - 15 May 1925 - 1 July 1925
(S) LT SAKURAI Tokuichi (1920) - 6 June 1925 - 20 August 1925
(S) LT ISHIGURO Yoshio (1916) - 30 July 1925 - 1 December 1925
(S) CDR SUGAWARA Sahei (1911) - 1 September 1925 - 1 December 1925
(S) LCDR KOBAYASHI Kengo (1916) - 10 November 1925 - 1 December 1926
(S) LCDR / (S) CDR TAKAGI Takashi (1912) - 1 December 1925 - 10 December 1928
(S) CDR / (S) CAPT AIDA Tsuneji (1906) - 1 December 1925 - 1 May 1928
(S) LT KANAI Izumi (1918) - 1 December 1925 - 1 December 1926
(S) LT KIZU Einosuke (1921) - 1 December 1925 - 1 April 1926
(S) LCDR SHIBATA Toshio (1918) - 1 April 1926 - 10 December 1928
(S) LT / (S) LCDR GOTO Kosaburo (1916) - 1 April 1926 - 1 June 1927
(S) LT OKUBO Shin (1918) - 1 December 1926 - 29 July 1927
(S) LT ODAJIMA Shokichi (1922) - 1 December 1926 - 1 April 1927
(S) CDR KASHIWAZAKI Osamu (1908) - 15 February 1927 - 16 May 1927
(S) LCDR KABURAGI Kihei (1919) - 1 April 1927 - 1 December 1927
(S) LT ITO Shinichi (1917) - 29 July 1927 - 1 July 1928
(S) LT KAWADA Masashi (1923) - 10 October 1927 - 1 April 1928
(S) LCDR KOBAYASHI Kengo (1916) - 1 December 1927 - 1 April 1930
(S) LT MATSUO Masamichi (1918) - 1 December 1927 - 1 April 1928
(S) LT / (S) LCDR KIZU Einosuke (1921) - 1 April 1928 - 1 February 1929
(S) LT / (S) LCDR SEKUZU Eiichi (1921) - 1 April 1928 - 25 January 1929
(S) LT AMANO Naoe (1922) - 1 December 1928 - 1 November 1929
(S) CDR IMOKAWA Chiaki (1912) - 10 December 1928 - 15 June 1929
(S) CDR FUKADA Kanichi (1911) - 10 January 1930 - 1 December 1930
(S) LT KAWADA Masashi (1923) - 1 April 1930 - 1 December 1930
(S) LCDR GOTO Kosaburo (1916) - 1 December 1930 - 1 December 1931
(S) CDR HORI Nobuaki (1912) - 1 December 1930 - 14 November 1931
(S) LCDR YAKABE Gunji (1917) - 12 September 1931 - 1 August 1932
(S) LCDR TAKAHASHI Yutaka (1916) - 14 November 1931 - 1 November 1934
(S) LCDR KUROKI Takeichi (1918) - 1 December 1931 - 15 November 1933
(S) LCDR TAKEI Hiizu (1920) - 1 December 1931 - 15 November 1933
(S) LCDR SEKUZU Eiichi (1921) - 1 December 1931 - 1 December 1932
(S) LT IKEGAMI Yasuo (1925) - 1 December 1931 - 5 February 1932
(S) LCDR / (S) CDR KIZU Einosuke (1921) - 4 March 1932 - 10 March 1934
(S) CDR AMANO Senkichi (1918) - 15 November 1933 - 1 December 1936
(S) CDR SUGO Iwao (1917) - 11 December 1933 - 20 October 1937
(S) CDR KANDATSU Kinsaku (1917) - 1 February 1934 - 15 November 1934
(S) CDR ITO Shinichi (1917) - 1 November 1934 - 20 March 1937
(S) CDR HONMA Masato (1919) - 15 November 1934 - 31 October 1935
(S) LCDR / (S) CDR SHIINA Saburo (1919) - 1 November 1934 - 15 February 1935
(S) CDR SEKUZU Eiichi (1921) - 1 June 1935 - 15 January 1936
(S) CDR SHIINA Saburo (1919) - 1 August 1935 - 15 November 1935
(S) CDR TAMURA Akira (1920) - 15 November 1935 - 26 August 1938
(S) CDR KAWADA Masashi (1923) - 15 November 1935 - 17 August 1937
(S) CDR TAKAHASHI Yutaka (1916) - 15 November 1935 - 1 December 1936
(S) CDR KUROKI Takeichi (1918) - 26 August 1937 - 1 December 1937
(S) CDR TSUTOMI Takashi (1919) - 1 December 1937 - 1 November 1939
(S) CDR MATSUNO Kinji (1922) - 1 December 1937 - 15 October 1939
(S) CDR YOKOKURA Seijiro (1921) - 1 December 1937 - 15 November 1938
(S) CDR USHIKUBO Shigetsune (1918) - 25 January 1938 - 1 November 1938
(S) CDR KUROKI Takeichi (1918) - 1 July 1938 - 14 October 1938
(S) CDR ODA Kazuaki (1920) - 15 October 1939 - 15 November 1940
(S) LCDR IKEGAMI Yasuo (1925) - 15 November 1940 - 20 September 1941

Apothecary
(A) LTJG TOMARU Toshio (1917) - 8 June 1922 - 20 November 1922
(A) LT / (A) LCDR ICHIJO Shoichi (1918) - 10 December 1928 - 1 December 1931
(A) LCDR MURATA Suguru (1918) - 1 December 1931 - 1 November 1933
(A) LCDR / (A) CDR ICHIJO Shoichi (1918) - 15 November 1933 - 1 December 1936

Adjutants
(S) CDR IMAZAWA Masafuyu (1903) - 11 March 1922 - 1 September 1922
(S) LT YANO Yoshio (1919) - 1 May 1924 - 1 April 1925
(S) CDR SATAKE Zenji (1908) - 1 December 1924 - 1 July 1925
(S) CDR AIDA Tsuneji (1906) - 1 December 1926 - 1 December 1927
(S) CDR TAKAGI Takashi (1912) - 1 December 1927 - 10 December 1928
(S) LCDR KIZU Einosuke (1921) - 15 November 1932 - 1 December 1932
(S) CDR SUDO Iwao (1917) - 15 November 1935 - 1 December 1936

[ijnfleetadmiral]

Here's what I have for Naval Attaches...I have no idea when these posts began or ended, what the structure was for these posts, or if there were any other countries Japan sent Naval Attaches to, so if anyone can fill in blanks or provide more info, TIA.

Chile
Attaches
LCDR / CDR IKEDA Keinosuke (34) - 6 June 1921 - 20 May 1924
??? - 20 May 1924 - 30 November 1929
CAPT YUKISHITA Katsumi (36) - 30 November 1929 - 11 July 1932
CDR / CAPT ITO Kenzo (41) - 11 July 1932 - 15 November 1935
CDR HANADA Yukitake (43) - 15 November 1935 - 1 October 1938
??? - 1 October 1938 - 19 July 1941
RADM YUKISHITA Katsumi (36) - 19 July 1941 - 5 May 1942
??? - 5 May 1942 - 11 April 1945

Colombia
Attaches
CAPT HAMANAKA Kyoho (42) - 19 July 1941 - 17 February 1942
??? - 17 February 1942 - 26 November 1943

Argentina
Attaches
LCDR / CDR IKEDA Keinosuke (34) - 6 July 1922 - 20 May 1924
??? - 20 May 1924 - 30 November 1929
CAPT YUKISHITA Katsumi (36) - 30 November 1929 - 11 July 1932
CDR / CAPT ITO Kenzo (41) - 11 July 1932 - 15 November 1935
CDR HANADA Yukitake (43) - 15 November 1935 - 1 October 1938
??? - 1 October 1938 - 19 July 1941
RADM YUKISHITA Katsumi (36) - 19 July 1941 - 7 February 1945

Brazil
Attaches
CDR / CAPT KAWANO Togo (31) - 15 June 1921 - 1 June 1923
LCDR / CDR MORIMOTO Jo (35) - 1 June 1923 - 1 June 1925
LCDR / CDR SEKINE Gunpei (37) - 1 June 1925 - 1 November 1927
Cdr. Koike Shiro (37) - 1 November 1927 - 30 November 1929
CAPT YUKISHITA Katsumi (36) - 30 November 1929 - 11 July 1932
CDR / CAPT ITO Kenzo (41) - 11 July 1932 - 15 November 1935
CDR HANADA Yukitake (43) - 15 November 1935 - 1 October 1938
??? - 1 October 1938 - 22 August 1942

Finland
Attaches
CDR KAWABATA Masaharu (47) – 25 April 1936 – 20 March 1939
CAPT ISHII Takayuki (43) – 20 March 1939 – 14 September 1940
CDR YAMAGUCHI Suteji (46) – 14 September 1940 – 21 July 1941
CAPT / RADM YOKOI Tadao (43) – 21 July 1941 – 20 August 1943
RADM KOJIMA Hideo (44) – 20 August 1943 – 15 August 1945

Mexico
Attaches
CDR TAKESHITA Shigeri (35) - 2 May 1927 - 26 April 1930
CDR / CAPT OCHI Kohei (38) - 26 April 1930 - 15 July 1933
LCDR / CDR OKUMA Yuzuru (44) - 15 July 1933 - 20 March 1936
CDR / CAPT HAMANAKA Kyoho (42) - 20 March 1936 - 15 June 1939
CAPT SATO Katsuya (44) - 15 June 1939 - 15 May 1941
CAPT HAMANAKA Kyoho (42) - 15 May 1941 - 17 February 1942
??? - 17 February 1942 - 22 May 1942

Canada
Attaches
CAPT SENOO Tomoyuki (40) - 17 March 1934 - 15 November 1935
CDR TAKEUCHI Kaoru (46) - 15 November 1935 - 15 December 1938
??? - 15 December 1938 - 7 December 1941

Korea
Attaches
LCDR INOUE Yoshitomo (Cradle) - 16 November 1887 - 13 February 1891
LT TAKETOMI Kunikane (Cradle) - 13 February 1891 - 14 February 1893
??? - 14 February 1893 - 23 May 1900
CAPT YASUHARA Kinji (5) - 23 May 1900 - 11 June 1900
CDR FUKUI Masayoshi (7) - 11 June 1900 - 12 February 1903
LCDR YOSHIDA Masujiro (17) - 12 February 1903 - 12 December 1905
??? - 12 February 1905 - 15 August 1945

Netherlands
Attaches
CDR / CAPT KOJIMA Hideo (44) - 1 July 1936 - 1 June 1938
??? - 1 June 1938 - 8 January 1940
CDR / CAPT MAEDA Tadashi (46) - 8 January 1940 - 27 August 1941
??? - 27 August 1941 - 7 December 1941

Philippines
Attaches
CAPT / RADM HIRAIDE Hideo (45) - 28 December 1943 - 25 November 1944

China
Attaches
LT / LCDR SERATA Tasuku (Cradle) - 3 May 1887 - 14 August 1890
??? - 14 August 1890 - 5 September 1892
LT / LCDR INOUE Toshio (5) - 5 September 1892 - 17 August 1894
??? - 17 August 1894 - 25 May 1895
CAPT INOUE Yoshitomo (Cradle) - 25 May 1895 - 1 April 1897
LCDR / CDR / CAPT TAKIGAWA Tomokazu (6) - 1 April 1897 - 18 January 1900
CDR MORI Yoshitaro (10) - 18 January 1900 - 28 January 1902
LCDR YOSHIDA Masujiro (17) - 28 January 1902 - 12 December 1905
CAPT KAMAYA Tadamichi (11) - 12 December 1905 - 21 June 1906
CAPT / RADM NAKAMURA Shizuka (7) - 21 June 1906 - 21 October 1907
LCDR / CDR MASUDA Takayori (18) - 21 October 1907 - 23 May 1910
CAPT / RADM MORI Yoshitaro (10) - 23 May 1910 - 24 January 1914
CAPT YOSHIDA Masujiro (17) - 24 January 1914 - 25 December 1915
CAPT MASUDA Takayori (18) - 25 December 1915 - 8 June 1916
CAPT IJUIN Shun (21) - 8 June 1916 - 1 December 1918
CDR / CAPT YASUMI Saburo (29) - 1 December 1918 - 30 May 1921
CAPT NAKAJIMA Susumu (29) - 30 May 1921 - 1 June 1923
CDR / CAPT TSUDA Shizue (31) - 1 June 1923 - 1 November 1926
CDR / CAPT SUGISAKA Teijiro (33) - 1 November 1926 - 30 November 1929
CAPT KITAOKA Haruo (34) - 30 November 1929 - 1 December 1932
CAPT / RADM SATO Osamu (35) - 1 December 1932 - 1 December 1936
RADM HONDA Tadao (37) - 1 December 1936 - 25 April 1938
RADM / VADM NOMURA Naokuni (35) - 25 April 1938 - 26 October 1939
RADM / VADM IWAMURA Seiichi (37) - 26 October 1939 - 20 April 1940
RADM FUJITA Risaburo (40) - 20 April 1940 - 11 December 1940
RADM KANAZAWA Masao (39) - 11 December 1940 - 15 October 1941
RADM SHIROYA Kiyoshi (40) - 15 October 1941 - 10 February 1943
RADM / VADM MAEDA Minoru (41) - 10 February 1943 - 10 February 1945
RADM OGAWA Kanji (43) - 10 February 1945 - 15 August 1945

Assistant Attaches
LCDR KUBOTA Hisaharu (36) - 10 April 1923 - 10 September 1925
??? - 10 September 1925 - 1 March 1928
LT / LCDR FUJIWARA Kiyoma (45) - 1 March 1928 - 10 February 1930
??? - 10 February 1930 - 24 August 1932
LCDR FUJIWARA Kiyoma (45) - 24 August 1932 - 15 November 1933
??? - 15 November 1933 - 15 August 1945

Russia
Attaches
LT NOMOTO Tsunaakira (7) - 1 June 1893 - 21 December 1895
LT / LCDR / CDR YASHIRO Rokuro (8) - 21 December 1895 - 6 December 1898
CDR / CAPT NOMOTO Tsunaakira (7) - 6 December 1898 - 21 January 1901
CAPT SAKAI Tadatoshi (Cradle) - 21 January 1901 - 10 February 1904
??? - 10 February 1904 - 7 February 1906
CAPT KUROI Teijiro (13) - 7 February 1906 - 29 July 1908
CDR TANAKA Kotaro (16) - 29 July 1908 - 7 February 1911
CDR / CAPT KAWAHARA Kesataro (17) - 7 February 1911 - 24 January 1914
??? - 24 January 1914 - 10 December 1916
CDR HITSUDA Kesaichi (29) - 10 December 1916 - 10 March 1920
??? - 10 March 1920 - 22 May 1925
CAPT IKENAKA Kenichi (31) - 22 May 1925 - 1 October 1925
CDR MASAKI Katsuji (34) - 1 October 1925 - 10 June 1927
??? - 10 June 1927 - 1 May 1929
CAPT / RADM ARIMA Yutaka (33) - 1 May 1929 - 1 May 1931
CDR MAEDA Minoru (41) - 1 May 1931 - 10 April 1934
LCDR / CDR NAKASE Noboru (45) - 10 April 1934 - 25 April 1936
CDR KAWABATA Masaharu (47) - 25 April 1936 - 20 March 1939
CAPT ISHII Takayuki (43) - 20 March 1939 - 14 September 1940
CDR / CAPT YAMAGUCHI Suteji (46) – 14 September 1940 – 20 December 1943
CDR / CAPT USUI Yoshiro (51) – 20 December 1943 – 13 August 1945

Assistant Attaches
LCDR ARIMA Yutaka (33) - 1 June 1917 - 9 December 1917
LT NAKASE Noboru (45) - 15 October 1925 - 1 May 1926
LT / LCDR KAWABATA Masaharu (47) - 1 May 1927 - ???
??? - ??? – 1 May 1930
LT YAMAGUCHI Suteji (46) – 1 May 1930 – 30 July 1932
??? – 30 July 1932 – 13 August 1945

France
Attaches
LCDR HAYASAKI Gengo (3) - 16 January 1890 - 7 October 1891
??? - 7 October 1891 - 5 September 1892
CAPT URYU Sotokichi (Cradle) - 5 September 1892 - 31 August 1896
CAPT ITO Yoshigoro (5) - 31 August 1896 - 1 September 1900
CDR / CAPT TAKEUCHI Heitaro (8) - 1 September 1900 - 9 December 1903
??? - 9 December 1903 - 5 November 1906
CDR / CAPT MORIYAMA Keizaburo (17) - 5 November 1906 - 2 February 1910
CDR / CAPT MATSUMURA Junichi (18) - 2 February 1910 - 27 January 1913
??? - 27 January 1913 - 25 December 1915
CAPT MATSUMURA Kikuo (20) - 25 December 1915 - 5 February 1919
CAPT OSUMI Mineo (21) - 5 February 1919 - 1 July 1921
??? - 1 July 1921 - 1 December 1922
CAPT TERAJIMA Ken (31) - 1 December 1922 - 25 October 1924
??? - 25 October 1924 - 6 January 1925
CDR KO Yasuo (33) - 6 January 1925 - 17 September 1925
??? - 17 September 1925 - 1 December 1926
CAPT KOGA Mineichi (34) - 1 December 1926 - 1 November 1928
??? - 1 November 1928 - 7 February 1930
CDR MIKAWA Gunichi (38) - 7 February 1930 - 1 December 1930
CAPT TOGARI Takamoto (37) - 1 December 1930 - 1 July 1935
CDR / CAPT YAMADA Sadayoshi (42) - 1 July 1935 - 15 November 1937
CDR / CAPT SUMIKAWA Michio (45) - 15 November 1937 - 1 December 1939
CDR / CAPT HOSOYA Sukeyoshi (49) - 1 December 1939 - 1 March 1943
??? - 1 March 1943 - 15 August 1945

Assistant Attaches
LCDR TERAJIMA Ken (31) - 1 August 1916 - 12 March 1918
??? - 12 March 1918 - 5 May 1920
LCDR KO Yasuo (33) - 5 May 1920 - 27 August 1920
??? - 27 August 1920 - 1 September 1922
LCDR TOGARI Takamoto (37) - 1 September 1922 - 1 December 1923
??? - 1 December 1923 - 15 November 1927
LT HIRAIDE Hideo (45) - 15 November 1927 - 10 September 1928
??? - 10 September 1928 - 1 December 1934
LCDR HOSOYA Sukeyoshi (49) - 1 December 1934 - 5 September 1936
??? - 5 September 1936 - 15 August 1945

Britain
Attaches
LCDR KUROOKA Tatewaki (Cradle) - 1 December 1880 - 26 February 1883
??? - 26 February 1883 - 9 October 1890
CAPT KAWAHARA Yoichi (2) - 9 October 1890 - 20 May 1893
LCDR / CAPT ENDO Kitaro (5) - 20 May 1893 - 17 April 1897
CAPT HOSOYA Sukeji (5) - 17 April 1897 - 26 June 1897
CAPT MUKAIYAMA Shikichi (5) - 26 June 1897 - 27 February 1899
CDR KAWASHIMA Reijiro (11) - 27 February 1899 - 1 April 1901
CAPT TAMARI Chikataka (5) - 1 April 1901 - 1 March 1904
CAPT KABURAGI Makoto (5) - 1 March 1904 - 20 December 1905
CAPT TOCHINAI Sojiro (13) - 20 December 1905 - 1 October 1909
CDR / CAPT KATO Hiyoharu (18) - 1 October 1909 - 2 June 1911
CAPT IDE Kenji (16) - 2 June 1911 - 6 March 1913
CAPT Baron ABO Kiyokazu (18) - 6 March 1913 - 15 August 1914
RADM OGURI Kozaburo (15) - 15 August 1914 - 23 June 1916
RADM FUNAKOSHI Kajihiro (16) - 23 June 1916 - 1 December 1917
RADM IIDA Hisatsune (19) - 1 December 1917 - 1 April 1920
CAPT / RADM KOBAYASHI Seizo (26) - 1 April 1920 - 25 May 1922
RADM TOSU Tamaki (25) - 25 May 1922 - 10 November 1923
CDR / CAPT TOYODA Teijiro (33) - 10 November 1923 - 1 December 1926
CAPT SHIOZAWA Koichi (32) - 1 December 1926 - 10 December 1928
CDR / CAPT SHIMAZU Tadashige (35) - 10 December 1928 - 1 December 1930
CAPT TAKASU Shiro (35) - 1 December 1930 - 1 November 1932
CDR / CAPT OKA Arata (40) - 1 November 1932 - 2 September 1935
CAPT FUJITA Risaburo (40) - 2 September 1935 - 1 December 1936
CAPT YANO Hideo (43) - 1 December 1936 - 10 February 1939
CAPT KONDO Yasuichiro (42) - 10 February 1939 - 26 August 1941
??? - 26 August 1941 - 8 December 1941

Assistant Attaches
LCDR / CDR FUJITA Hisanori (29) - 1 August 1916 - 6 October 1917
LCDR / CDR HAMANO Eijiro (30) - 6 October 1917 - 1 December 1918
LCDR SHIOZAWA Koichi (32) - 1 December 1918 - 1 April 1919
??? - 1 April 1919 - 30 April 1921
LCDR / CDR SONODA Minoru (34) - 30 April 1921 - 1 June 1923
LCDR / CDR TAKASU Shiro (35) - 1 June 1923 - 1 June 1924
LCDR / CDR SAWAMOTO Yorio (36) - 1 June 1924 - 1 June 1925
LCDR / CDR IWAMURA Seiichi (37) - 1 June 1925 - 1 May 1926
CDR HONDA Tadao (37) - 1 May 1926 - 1 May 1927
LCDR OKA Arata (40) - 1 May 1927 - 1 May 1928
??? - 1 May 1928 - 15 October 1928
LCDR KONDO Yasuichiro (42) - 15 October 1928 - 5 October 1929
??? - 5 October 1929 - 1 December 1930
LCDR / CDR KANEKO Shigeji (42) - 1 December 1930 - 1 July 1932
CDR YANO Shikazo (43) - 1 July 1932 - 10 May 1933
LCDR KOMURA Keizo (45) - 10 May 1933 - 15 June 1934
CDR YANAGIMOTO Ryusaku (44) - 15 June 1934 - 15 May 1935
??? - 15 May 1935 - 15 April 1936
CDR YAMAMOTO Yoshio (47) - 15 April 1936 - 25 May 1937
??? - 25 May 1937 - 1 March 1938
CDR ASHINA Saburo (49) - 1 March 1938 - 15 March 1939
??? - 15 March 1939 - 8 December 1941

United States
Attaches
LTJG / LT SAITO Makoto (6) - 19 September 1884 - 14 February 1888
??? - 14 February 1888 - 11 August 1889
LT NAKAMURA Shizuka (7) - 11 August 1889 - 2 August 1893
LT / LCDR MIYAOKA Naoki (6) - 2 August 1893 - 25 August 1896
LT NARITA Katsuro (7) - 25 August 1896 - 25 December 1899
CDR / CAPT Baron NISHI Shinrokuro (8) - 25 December 1899 - 1 October 1902
LCDR / CDR TAKESHITA Isamu (15) - 1 October 1902 - 14 February 1906
LCDR / CDR TANIGUCHI Naomi (19) - 14 February 1906 - 10 December 1908
CDR / CAPT HIRAGA Tokutaro (18) - 10 December 1908 - 4 May 1912
CDR / CAPT TAKEUCHI Shigetoshi (20) - 4 May 1912 - 11 December 1914
CDR / CAPT NOMURA Kichisaburo (26) - 11 December 1914 - 1 June 1918
CDR / CAPT UEDA Yoshitake (28) - 1 June 1918 - 1 December 1920
CAPT NAGANO Osami (28) - 1 December 1920 - 10 November 1923
CAPT HASEGAWA Kiyoshi (31) - 10 November 1923 - 1 December 1925
CAPT YAMAMOTO Isoroku (32) - 1 December 1925 - 15 November 1927
CAPT SAKANO Tsuneyoshi (33) - 15 November 1927 - 1 November 1930
CAPT SHIMOMURA Shosuke (35) - 1 November 1930 - 15 November 1932
CAPT KOBAYASHI Masami (38) - 15 November 1932 - 1 June 1934
CAPT YAMAGUCHI Tamon (40) - 1 June 1934 - 18 August 1936
CAPT KOBAYASHI Kengo (42) - 18 August 1936 - 25 January 1939
CAPT OGAWA Kanji (43) - 25 January 1939 - 10 September 1940
CDR / CAPT YOKOYAMA Ichiro (47) - 10 September 1940 - 8 December 1941

Assistant Attaches
CDR HASEGAWA Kiyoshi (31) - 20 March 1919 - 1 April 1920
LCDR SATO Saburo (34) - 1 April 1920 - 9 April 1921
LCDR / CDR HIBINO Masaharu (34) - 9 April 1921 - 1 April 1923
LCDR IWASHITA Yasutaro (37) - 1 April 1923 - 1 August 1924
LCDR / CDR YUKISHITA Katsumi (36) - 1 August 1924 - 15 April 1925
LT HAMANAKA Kyoho (42) - 15 April 1925 - 1 May 1926
LCDR MAKITA Kakusaburo (38) - 1 May 1926 - 1 May 1927
LCDR / CDR KOBAYASHI Masami (38) - 1 May 1927 - 15 April 1928
LCDR KOBAYASHI Kengo (42) - 15 April 1928 - 1 May 1929
LCDR OGAWA Kanji (43) - 1 May 1929 - 1 May 1930
LCDR MATSUDA Chiaki (44) - 1 May 1930 - 1 May 1931
CDR HOSHINA Zenshiro (41) - 1 May 1931 - 2 May 1932
LCDR YOKOYAMA Ichiro (47) - 2 May 1932 - 1 October 1933
CDR ICHIMIYA Yoshiyuki (44) - 1 October 1933 - 15 November 1934
LCDR YAMAKI Akira (46) - 15 November 1934 - 31 October 1935
CDR YAMAGUCHI Bunjiro (45) - 31 October 1935 - 20 October 1936
LCDR / CDR MIURA Kanzo (47) - 20 October 1936 - 15 February 1938
CDR TAGUCHI Taro (47) - 15 February 1938 - 20 January 1940
LCDR / CDR KISAKA Yoshitane (51) - 20 January 1940 - 1 September 1940
??? - 1 September 1940 - 8 December 1941

Austria
Attaches
CDR HYAKUTAKE Saburo (19) - 15 December 1908 - 15 October 1909
??? - 15 October 1909 - 1 December 1912
CDR SHIRANE Kumazo (21) - 1 December 1912 - 27 August 1914
EMBASSY CLOSED - 27 August 1914

Burma
Attaches
CAPT / RADM CHUDO Kanei (44) - 6 August 1943 - 1 March 1945
RADM SATO Katsuya (44) - 1 March 1945 - 10 August 1945

Thailand
Attaches
CDR CHUDO Kanei (44) - 5 June 1936 - 25 March 1938
CAPT TORIGOE Shinichi (43) - 25 March 1938 - 19 October 1940
??? - 19 October 1940 - 1 September 1941
CAPT / RADM SAKONJO Naomasa (40) - 1 September 1941 - 15 July 1943
CAPT / RADM OGURA Shinji (43) - 15 July 1943 - 20 September 1944
RADM SATO Katsuya (44) - 20 September 1944 - 13 October 1946

Manchuria
Attaches
CDR SHIBATA Yaichiro (40) - 23 February 1933 - 25 April 1933
CAPT FUJIMORI Seiichiro (37) - 25 April 1933 - 1 September 1934
CAPT OSHIMA Kenshiro (39) - 1 September 1934 - 1 July 1936
CAPT SUZUKI Yoshio (40) - 1 July 1936 - 1 November 1937
CAPT SHIROYA Kiyoshi (40) - 1 November 1937 - 10 January 1939
RADM TAYUI Minoru (39) - 10 January 1939 - 2 October 1939
RADM KOORI Hidesaburo (37) - 2 October 1939 - 15 November 1940
RADM YAMADA Mitsuru (37) - 15 November 1940 - 15 October 1941
RADM / VADM MATSUNAGA Jiro (38) - 15 October 1941 - 21 December 1942
RADM / VADM MARUMO Kuninori (40) - 21 December 1942 - 15 August 1945

Assistant Attaches
CDR NAKAOKA Nobuki (45) - 15 November 1938 - 15 December 1938
CDR OTA Nobunosuke (47) - 15 December 1938 - 15 November 1939
??? - 15 November 1939 - 10 July 1940
CDR YAMADA Takeji (48) - 10 July 1940 - 1 September 1941
??? - 1 September 1941 - 15 August 1945

Italy
Attaches
LT IJICHI Hikojiro (7) - 4 June 1891 - 10 April 1894
LT FUJII Koichi (7) - 10 April 1894 - 16 July 1894
??? - 16 July 1894 - 30 April 1897
LCDR / CDR SHIMAMURA Hayao (7) - 30 April 1897 - 4 March 1898
CDR / CAPT KABURAGI Makoto (5) - 4 March 1898 - 4 March 1901
??? - 4 March 1901 - 20 December 1905
CAPT SHOJI Yoshimoto (11) - 20 December 1905 - 1 May 1909
CDR / CAPT SAITO Hanroku (17) - 1 May 1909 - 20 April 1912
CDR / CAPT NAKAJIMA Suketomo (19) - 20 April 1912 - 1 December 1914
CDR YAMAMOTO Shinjiro (26) - 1 December 1914 - 1 December 1917
LCDR SHIMADA Shigetaro (32) - 1 December 1917 - 1 March 1919
??? - 1 March 1919 - 1 April 1925
CDR KASUYA Soichi (35) - 1 April 1925 - 1 November 1927
CDR INOUE Shigeyoshi (37) - 1 November 1927 - 1 August 1929
??? - 1 August 1929 - 2 April 1934
CDR KOJIMA Hitoshi (43) - 2 April 1934 - 1 June 1936
CDR / CAPT HIRAIDE Hideo (45) - 1 June 1936 - 7 February 1940
CDR / CAPT MITSUNOBU Toyo (47) - 7 February 1940 - 5 June 1944
??? - 5 June 1944 - 20 September 1944
VADM ABE Katsuo (40) - 20 September 1944 - 8 May 1945

Assistant Attaches
LCDR SHIMADA Shigetaro (32) - 1 June 1916 - 1 December 1917
??? - 1 December 1917 - 8 May 1945

Germany
Attaches
LCDR / CAPT KATAOKA Shichiro (3) - 23 May 1890 - 16 July 1894
??? - 16 July 1894 - 1 April 1896
LCDR / CDR UEHARA Shinjiro (7) - 1 April 1896 - 19 December 1898
??? - 19 December 1898 - 6 December 1900
CAPT FUJII Koichi (7) - 6 December 1900 - 9 February 1901
??? - 9 February 1901 - 28 January 1902
CAPT TAKIGAWA Tomokazu (6) - 28 January 1902 - 12 December 1905
CAPT YASHIRO Rokuro (8) - 12 December 1905 - 15 May 1908
CAPT ITO Otojiro (13) - 15 May 1908 - 15 July 1911
CDR SANO Tsuneha (18) - 15 July 1911 - 23 August 1914
EMBASSY CLOSED - 23 AUGUST 1914
EMBASSY REOPENED - ???
??? - ??? - 24 February 1921
CAPT ARAKI Jiro (29) - 24 February 1921 - 1 June 1923
CDR KOMAKI Wasuke (33) - 1 June 1923 - 1 December 1924
??? - 1 December 1924 - 1 May 1929
CAPT NOMURA Naokuni (35) - 1 May 1929 - 1 June 1931
CDR / CAPT ENDO Yoshikazu (39) - 1 June 1931 - 1 June 1934
CDR YOKOI Tadao (43) - 1 June 1934 - 1 February 1936
CDR / CAPT KOJIMA Hideo (44) - 1 February 1936 - 24 December 1938
RADM ENDO Yoshikazu (39) - 24 December 1938 - 2 September 1940
CAPT / RADM YOKOI Tadao (43) - 2 September 1940 - 20 August 1943
RADM KOJIMA Hideo (44) - 20 August 1943 - 8 May 1945

Assistant Attaches
CDR KOMAKI Wasuke (33) - 1 December 1922 - 1 June 1923
??? - 1 June 1923 - 6 December 1933
CDR YOKOI Tadao (43) - 6 December 1933 - 1 June 1934
??? - 1 June 1934 - 1 April 1935
LCDR KAMI Shigenori (48) - 1 April 1935 - 11 December 1935
??? - 11 December 1935 - 1 May 1937
LCDR YAMAMOTO Yuji (51) - 1 May 1937 - 1 March 1938
??? - 1 March 1938 - May 1940
LCDR / CDR FUJIMURA Yoshikazu (55) - May 1940 - ???
??? - ??? - 8 May 1945

[ijnfleetadmiral]

Here's what I have for the various IJN schools. TIA for any help in filling in blanks.

Numazu Construction School
Established on 1 June 1944
Abolished on 15 July 1945

Commanders
RADM AOKI Masao (Eng. 24) - 1 June 1944 - 1 October 1944
RADM UMEBAYASHI Masayoshi (Eng. 23) - 1 October 1944 - 15 July 1945

Chief Instructors
??? - 1 June 1944 - 15 July 1945

Surgeons
??? - 1 June 1944 - 15 July 1945

Paymasters
??? - 1 June 1944 - 15 July 1945

Adjutants
??? - 1 June 1944 - 15 July 1945

Construction School
Established on 1 April 1941
Renamed Yokosuka Construction School on 1 June 1944

Commanders
RADM WAZUMI Tokutaro (Eng. 21) - 1 April 1941 - 5 November 1941
RADM SUZUKI Hisatake (Eng. 20) - 5 November 1941 - 15 December 1941
VADM ASAKUMA Hikokichi (Eng. 17) - 15 December 1941 - 15 March 1943
RADM / VADM WAZUMI Tokutaro (Eng. 21) - 15 March 1943 - 15 February 1944
RADM MIHARA Taizo (Eng. 22) - 15 February 1944 - 1 June 1944

Chief Instructors
(E) CAPT / CAPT SAKAGAMI Tomihei (Eng. 26) - 1 April 1941 - 10 April 1943
??? - 10 April 1943 - 1 June 1944

Surgeons
??? - 1 April 1941 - 1 June 1944

Paymasters
??? - 1 April 1941 - 1 June 1944

Adjutants
??? - 1 April 1941 - 1 June 1944

Yokosuka Construction School
Renamed from Construction School on 1 June 1944
Abolished post-war

Commanders
RADM Mihara Taizo (Eng. 22) - 1 June 1944 - 15 October 1945

Chief Instructors
??? - 1 June 1944 - 15 October 1945

Surgeons
??? - 1 June 1944 - 15 October 1945

Paymasters
??? - 1 June 1944 - 15 October 1945

Adjutants
??? - 1 June 1944 - 15 October 1945

Kamo Sanitary School
Established on 1 April 1945
Abolished post-war

Commanders
(S) RADM / (S) VADM TANABE Yutaka ((S) 1915) - 1 April 1945 - 1 October 1945

Chief Instructors
??? - 1 April 1945 - 1 October 1945

Surgeons
??? - 1 April 1945 - 1 October 1945

Paymasters
??? - 1 April 1945 - 1 October 1945

Adjutants
??? - 1 April 1945 - 1 October 1945

Totsuka Sanitary School
Established on 1 May 1945
Abolished post-war

Commanders
(S) RADM KANAI Izumi (1918) - 1 May 1945 - 11 September 1945

Chief Instructors
??? - 1 May 1945 - 11 September 1945

Surgeons
??? - 1 May 1945 - 11 September 1945

Paymasters
??? - 1 May 1945 - 11 September 1945

Adjutants
??? - 1 May 1945 - 11 September 1945

Training Center, Naval Medical Bureau
Established on 4 September 1882
Renamed Naval Medical Training Center on 15 December 1884

Commanders
(S) CAPT TAKAGI Kanehiro (Cradle) - 4 September 1882 - 15 December 1884

Chief Instructors
??? - 4 September 1882 - 15 December 1884

Surgeons
??? - 4 September 1882 - 15 December 1884

Paymasters
??? - 4 September 1882 - 15 December 1884

Adjutants
??? - 4 September 1882 - 15 December 1884

Naval Medical Center
Renamed from Training Center, Naval Medical Bureau on 15 December 1884
Renamed Naval Medical School on 26 April 1886

Commanders
(S) CAPT / (S) RADM TAKAGI Kanehiro (Cradle) - 15 December 1884 - 26 April 1886

Chief Instructors
??? - 15 December 1884 - 26 April 1886

Surgeons
??? - 15 December 1884 - 26 April 1886

Paymasters
??? - 15 December 1884 - 26 April 1886

Adjutants
??? - 15 December 1884 - 26 April 1886

Naval Medical School (1st ver.)
Renamed from Naval Medical Center on 26 April 1886
Abolished on 31 March 1894

Commanders
(S) RADM TAKAGI Kanehiro (Cradle) - 26 April 1886 - 22 April 1889
(S) RADM SANEYOSHI Yasuzumi (1885) - 22 April 1889 - 6 August 1892
(S) CAPT KAGAMI Mitsukata (Cradle) - 6 August 1892 - 20 May 1893 - 31 March 1894

Chief Instructors
??? - 26 April 1886 - 31 March 1894

Surgeons
??? - 26 April 1886 - 31 March 1894

Paymasters
??? - 26 April 1886 - 31 March 1894

Adjutants
??? - 26 April 1886 - 31 March 1894

Naval Medical School (2nd ver.)
Established on 1 April 1898
Abolished post-war

Commanders
(S) CAPT TOTSUKA Kankai (Cradle) - 1 April 1898 - 24 April 1899
(S) CAPT HIDEKATA Toyozumi (Cradle) - 24 April 1899 - 22 December 1899
(S) CAPT KIMURA Sosuke (Cradle) - 22 December 1899 - 2 March 1900
(S) CAPT YOSHIDA Sadanori (??) - 2 March 1900 - 20 May 1900
(S) CAPT / (S) RADM KIMURA Sosuke (Cradle) - 20 May 1900 - 4 January 1906
(S) CAPT / (S) RADM / (S) VADM HONDA Tadao (1887) - 4 January 1906 - 13 December 1915
(S) RADM YABE Tatsusaburo (1886) - 13 December 1915 - 1 December 1917
(S) RADM / (S) VADM SUZUKI Yuzo (1889) - 1 December 1917 - 1 December 1919
(S) RADM / (S) VADM NISHI Isao (1891) - 1 December 1919 - 1 December 1922
(S) RADM SUZUKI Konosuke (1897) - 1 December 1922 - 1 December 1924
(S) RADM AMAMIYA Ryoshichiro (1899) - 1 December 1924 - 1 December 1925
(S) RADM / (S) VADM OGAWA Ryu (1903) - 1 December 1925 - 30 November 1929
(S) RADM KODA Naka (1905) - 30 November 1929 - 25 February 1932
(S) RADM / (S) VADM TAKASUGI Shinichiro (1906) - 25 February 1932 - 15 November 1934
(S) RADM MUKOYAMA Yoshihiro (1911) - 15 November 1934 - 1 December 1937
(S) VADM TANAKA Asazo (1909) - 1 December 1937 - 15 November 1939
(S) VADM TANAKA Higotaro (1912) - 15 November 1939 - 15 October 1941
(S) VADM HORI Nobuaki (1912) - 15 October 1941 - 25 October 1943
(S) RADM / (S) VADM KANBAYASHI Yoshiharu (1917) - 25 October 1943 - 1 November 1945

Chief Instructors
??? - 1 April 1898 - 22 April 1911
(S) CAPT YABE Tatsusaburo (1886) - 22 April 1911 - 1 December 1911
(S) CAPT NAKAO Taichiro (1887) - 1 December 1911 - 1 December 1913
(S) CAPT NISHI Isao (1891) - 1 December 1913 - 20 August 1914
??? - 20 August 1914 - 1 December 1914
(S) CAPT SUZUKI Yuzo (1889) - 1 December 1914 - 1 February 1915
(S) CAPT YOSHIKAWA Ikuzo (1892) - 1 February 1915 - 13 December 1915
(S) CAPT OISHI Shigekichi (1891) - 13 December 1915 - 1 December 1916
(S) CAPT NAKAGAWA Heihachi (1893) - 1 December 1916 - 1 December 1917
(S) CAPT YOSHIKAWA Ikuzo (1892) - 1 December 1917 - 1 December 1918
(S) CAPT / (S) RADM AMAMIYA Ryoshichiro (1899) - 1 December 1918 - 10 November 1922
??? - 10 November 1922 - 1 December 1922
(S) CAPT ONUKI Yasuzo (1898) - 1 December 1922 - 1 December 1923
(S) RADM KOBAYASHI Mikio (1902) - 1 December 1923 - 1 December 1925
(S) CAPT KODA Naka (1905) - 1 December 1925 - 1 December 1927
(S) CAPT / (S) RADM TAKAHASHI Michimaro (1906) - 1 December 1927 - 30 November 1929
(S) RADM FUKUSHIMA Hisashi (1907) - 30 November 1929 - 1 December 1930
(S) RADM ISHIHARU Ryo (1908) - 1 December 1930 - 1 December 1931
(S) RADM ABE Bungoro (1908) - 1 December 1931 - 25 February 1932
(S) CAPT / (S) RADM KIKUCHI Mitsugu (1910) - 25 February 1932 - 15 November 1934
(S) RADM OSADA Katsuyoshi (1911) - 15 November 1934 - 1 December 1937
(S) RADM TANAKA Higotaro (1912) - 1 December 1937 - 15 November 1938
(S) RADM WAKAO Yoshiho (1914) - 15 November 1938 - 15 November 1940
(S) RADM TAGAWA Sukezo (1915) - 15 November 1940 - 15 October 1941
(S) RADM KANBAYASHI Yoshiharu (1917) - 15 October 1941 - 1 November 1942
(S) RADM Osuga Tomiji (1916) - 1 November 1942 - 10 July 1943
??? - 10 July 1943 - 5 February 1945
(S) RADM KANAI Izumi (1918) - 5 February 1945 - 15 March 1945
(S) RADM YOKOKURA Seijiro (1921) - 15 March 1945 - 1 November 1945

Surgeons
??? - 1 April 1898 - 1 November 1945

Paymasters
(P) LT FUJITA Tsunetaka (1887) - 1 April 1898 - 21 May 1898
??? - 21 May 1898 - 29 September 1899
(P) LT AIHARA Bunshiro (1895) - 29 September 1899 - 20 May 1900
??? - 20 May 1900 - 18 June 1900
(P) LT AIHARA Bunshiro (1895) - 18 June 1900 - 1 August 1900
??? - 1 August 1900 - 5 August 1905
(P) LT IIDE Kyutaro (1900) - 5 August 1905 - 29 December 1905
??? - 29 December 1905 - 22 May 1912
(P) LT TANNAWA Toshio (1905) - 22 May 1912 - 1 December 1913
??? - 1 December 1913 - 5 May 1921
(P) LT KANO Kinzaburo (1913) - 5 May 1921 - 1 April 1922
??? - 1 April 1922 - 15 August 1945

Adjutants
??? - 1 April 1898 - 7 June 1900
(S) LCDR SATAKE Satoshi (1886) - 7 June 1900 - 1 October 1901
??? - 1 October 1901 - 18 December 1902
(S) LCDR SUZUKI Yuzo (1889) - 18 December 1902 - 2 February 1904
??? - 2 February 1904 - 12 December 1905
(S) LCDR / (S) CDR HIRANO Isamu (1892) - 12 December 1905 - 20 November 1908
(S) LCDR KURITA Shunzo (1897) - 20 November 1908 - 1 December 1910
??? - 1 December 1910 - 15 August 1918
(S) CDR KUROIWA Kenzo (1902) - 15 August 1918 - 20 November 1919
??? - 20 November 1919 - 10 June 1922
(S) LCDR MUKOYAMA Yoshihiro (1911) - 10 June 1922 - 10 May 1923
(S) CDR YANO Tamaki (1907) - 10 May 1923 - 2 February 1925
(S) LCDR OSADA Katsuyoshi (1911) - 1 December 1923 - 20 March 1924
(S) LCDR KOGANEI Ryoichi (1915) - 1 December 1924 - 1 February 1926
(S) CDR NAKANO Taro (1910) - 1 December 1925 - 1 December 1927
(S) CDR MASHITA Rokusaburo (1910) - 10 March 1926 - 30 November 1929
(S) LCDR YASUYAMA Kodo (1917) - 1 December 1927 - 6 December 1928
(S) CDR TAKAGI Takashi (1912) - 30 November 1929 - 1 August 1932
(S) LCDR KANAI Izumi (1918) - 6 December 1929 - 1 December 1930
(S) LCDR OKUBO Shin (1918) - 1 December 1930 - 26 February 1932
(S) LCDR OKUBO Shin (1918) - 2 June 1932 - 1 December 1932
(S) LCDR / (S) CDR YAKABE Gunji (1917) - 1 August 1932 - 31 October 1935
(S) LCDR KAWADA Masashi (1923) - 1 September 1933 - 15 November 1935
(S) CDR HONMA Masato (1919) - 31 October 1935 - 1 December 1937
(S) CDR KAWADA Masashi (1923) - 1 December 1937 - 15 November 1939

Dainan Engineering School
Established on 1 March 1945
Abolished post-war

Commanders
RADM / VADM YAMANAKA Tomojiro (Eng. 21) - 1 March 1945 - 25 August 1945
RADM KITAGAWA Masa (Eng. 27) - 25 August 1945 - 15 October 1945

Chief Instructors
??? - 1 March 1945 - 15 October 1945

Surgeons
??? - 1 March 1945 - 15 October 1945

Paymasters
??? - 1 March 1945 - 15 October 1945

Adjutants
??? - 1 March 1945 - 15 October 1945

Naval Engineering School (1st ver.)
Established on 20 April 1907
Abolished on 1 December 1913

Commanders
(E) CAPT HIRABE Teiichi (Cradle) - 20 April 1907 - 10 December 1907
(E) RADM YAMAZAKI Tsurunosuke (Cradle) - 10 December 1907 - 21 February 1908
(E) CAPT / (E) RADM ITO Shigeji (Cradle) - 21 February 1908 - 1 December 1911
(E) RADM KAMO Iwao (Cradle) - 1 December 1911 - 1 December 1913

Chief Instructors
??? - 20 April 1907 - 1 December 1913

Surgeons
??? - 20 April 1907 - 10 December 1908
(S) LCDR NAKAJIMA Etsuro (1898) - 10 December 1908 - 10 March 1910
??? - 10 March 1910 - 1 December 1913

Paymasters
??? – 20 April 1907 – 24 May 1913
(P) LCDR FURUYAMA Kiichiro (1900) – 24 May 1913 – 1 December 1913

Adjutants
(E) LT KAWAI Shuntaro (Eng. 8) - 22 April 1907 - 20 April 1908
(E) LT SUGI Masato (Eng. 10) - 20 April 1908 - 29 August 1908
??? - 29 August 1908 - 1 April 1923
(E) LT TAKEUCHI Yasutami (Eng. 12) - 1 April 1912 - 1 December 1912
??? – 1 December 1912 – 1 December 1913

Naval Engineering School (2nd ver.)
Established on 25 June 1928
Renamed Yokosuka Engineering School on 1 March 1945

Commanders
RADM KISHIMOTO Nobuta (Eng. 10) - 25 June 1928 - 10 December 1928
RADM MURATA Toyotaro (Eng. 12) - 10 December 1928 - 15 November 1932
RADM / VADM ONO Tokusaburo (Eng. 13) - 15 November 1932 - 15 November 1933
RADM KAWAHARA Hiroshi (Eng. 15) - 15 November 1933 - 1 December 1936
RADM ASAKUMA Hikokichi (Eng. 17) - 1 December 1936 - 15 November 1939
RADM GOSHO Shizuka (Eng. 19) - 15 November 1939 - 10 September 1941
RADM / VADM SUZUKI Hisatake (Eng. 20) - 10 September 1941 - 20 June 1943
RADM / VADM AKASAKA Isao (Eng. 21) - 20 June 1943 - 10 May 1944
VACANT - 10 May 1944 - 26 June 1944
RADM / VADM MORITA Kanichi (Eng. 23) - 26 June 1944 - 15 January 1945
RADM TERAYAMA Sakae (Eng. 25) - 15 January 1945 - 1 March 1945

Chief Instructors
(E) CAPT SUZUKI Shigetomo (Eng. 14) - 25 June 1928 - 1 May 1929
(E) CAPT SUMI Sashichi (Eng. 15) - 1 May 1929 - 1 December 1930
(E) CAPT KATAYAMA Seiji (Eng. 16) - 1 December 1930 - 1 December 1931
(E) CAPT KAWANO Katsuji (Eng. 17) - 1 December 1931 - 20 July 1932
(E) CAPT ASAKUMA Hikokichi (Eng. 17) - 20 July 1932 - 15 November 1934
(E) CAPT GOSHO Shizuka (Eng. 19) - 15 November 1934 - 15 November 1935
??? - 15 November 1935 - 2 December 1935
(E) CAPT SUZUKI Hisatake (Eng. 20) - 2 December 1935 - 1 December 1936
(E) CAPT OBATA Aiki (Eng. 21) - 1 December 1936 - 21 January 1938
??? - 21 January 1938 - 1 December 1938
(E) CAPT NAKAMURA Goro (Eng. 23) - 1 December 1938 - 15 November 1940
(E) CAPT KATSUMATA Seizo (Eng. 25) - 15 November 1940 - 10 October 1942
(E) CAPT / CAPT UENO Gonta (Eng. 26) - 10 October 1942 - 1 September 1943
??? - 1 September 1943 - 1 March 1945

Surgeons
??? - 25 June 1928 - 15 November 1933
(S) CDR AMANO Senkichi (1918) - 15 November 1933 - 1 December 1936
(S) CDR USHIKUBO Shigetsune (1918) - 1 December 1936 - 1 November 1938
??? - 1 November 1938 - 1 March 1945

Paymasters
??? – 25 June 1928 – 15 November 1933
(P) CDR NAKAZAWA Kiyoshi (Pay. 3) – 15 November 1933 – 1 December 1933
(P) CDR NONOGAKI Seiji (Pay. 3) – 1 December 1933 – ???
??? – ??? – 1 March 1945

Adjutants
(E) LCDR NAGAMATSU Masateru (Eng. 22) - 25 June 1928 - 10 December 1928
(E) LCDR SHIMADA Tojiro (Eng. 23) - 10 December 1928 - 1 December 1931
(E) LCDR SAKAGAMI Tomihei (Eng. 26) - 1 December 1931 - 15 November 1933
??? – 15 November 1933 – ???
(E) LCDR HOKOTATE Takeshi (Eng. 32) – ??? – 1 December 1936
??? – 1 December 1936 – 1 March 1945

Yokosuka Engineering School
Renamed from Naval Engineering School on 1 March 1945
Abolished on 20 May 1945

Commanders
RADM TERAYAMA Sakae (Eng. 25) - 1 March 1945 - 20 May 1945

Chief Instructors
??? - 1 March 1945 - 20 May 1945

Surgeons
??? - 1 March 1945 - 20 May 1945

Paymasters
??? - 1 March 1945 - 20 May 1945

Adjutants
??? - 1 March 1945 - 20 May 1945

Weather School
Established on 1 March 1945
Abolished on 20 June 1945

Commanders
RADM SEKI Ikuya (43) - 1 March 1945 - 20 June 1945

Chief Instructors
??? - 1 March 1945 - 20 June 1945

Surgeons
??? - 1 March 1945 - 20 June 1945

Paymasters
??? - 1 March 1945 - 20 June 1945

Adjutants
??? - 1 March 1945 - 20 June 1945

Hofu Communication School
Established on 1 May 1943
Abolished post-war

Commanders
RADM KUROSE Hiroshi (41) - 1 May 1943 - 15 August 1944
CAPT / RADM USHIO Fujimasa (42) - 15 August 1944 - 15 July 1945
RADM KIMURA Masatomi (41) - 15 July 1945 - 15 August 1945

Chief Instructors
??? - 1 May 1943 - 15 August 1945

Surgeons
??? - 1 May 1943 - 15 August 1945

Paymasters
??? - 1 May 1943 - 15 August 1945

Adjutants
??? - 1 May 1943 - 15 August 1945

Communication School
Established on 1 June 1930
Renamed Yokosuka Communication School on 1 May 1943

Commanders
RADM MATSUYAMA Shigeru (30) - 1 June 1930 - 1 December 1930
RADM ICHIMURA Hisao (31) - 1 December 1930 - 1 December 1932
Capt. HIGURASHI Toshiu (34) - 1 December 1932 - 15 November 1933
RADM FURIHATA Satoshi (35) - 15 November 1933 - 1 December 1936
RADM HOSOGAYA Boshiro (36) - 1 December 1936 - 28 July 1937
VACANT - 28 July 1937 - 1 December 1937
RADM MAKITA Kakusaburo (38) - 1 December 1937 - 15 November 1939
RADM YAMAGUCHI Gisaburo (40) - 15 November 1939 - 10 October 1941
VADM FURIHATA Satoshi (35) - 10 October 1941 - 10 March 1943
RADM UGAKI Kanji (39) - 10 March 1943 - 1 May 1943

Chief Instructors
CAPT / RADM IDEMITSU Manbei (33) - 1 June 1930 - 1 May 1931
CAPT FURIHATA Satoshi (35) - 1 May 1931 - 20 December 1933
CAPT YAMAGUCHI Gisaburo (40) - 20 December 1933 - 15 November 1935
CAPT MAKITA Kakusaburo (38) - 15 November 1935 - 1 December 1936
CAPT NAKAJIMA Torahiko (39) - 1 December 1936 - 1 December 1937
CAPT SHIMA Kiyohide (39) - 1 December 1937 - 15 November 1939
CAPT ITO Yasunoshin (42) - 15 November 1939 - 15 September 1941
CAPT ISOBE Jun (43) - 15 September 1941 - 10 December 1942
??? - 10 December 1942 - 1 May 1943

Surgeons
??? - 1 June 1930 - 1 December 1930
(S) LCDR TAKAHASHI Yutaka (1916) - 1 December 1930 - 14 November 1931
??? - 14 November 1931 - 11 January 1933
(S) CDR KANDATSU Kinsaku (1917) - 11 January 1933 - 20 December 1933
??? - 20 December 1933 - 31 October 1935
(S) LCDR / (S) CDR SAKURAI Tokuichi (1920) - 31 October 1935 - 1 December 1936
??? - 1 December 1936 - 15 November 1939
(S) CDR MURATA Saburo (1921) - 15 November 1939 - 1 October 1941
??? - 1 October 1941 - 1 May 1943

Paymasters
??? - 1 June 1930 - 28 July 1939
(P) CDR MIYAKAWA Goro (Pay. 4) - 28 July 1939 - 15 November 1939
??? - 15 November 1939 - 1 May 1943

Adjutants
??? - 1 May 1930 - 20 December 1933
CDR FUKUYOSHI Yasuo (42) - 20 December 1933 - 20 March 1934
??? - 20 March 1934 - 1 May 1943

Yokosuka Communication School
Renamed from Communication School on 1 May 1943
Abolished on 20 July 1945

Commanders
VADM UGAKI Kanji (39) - 1 May 1943 - 16 September 1943
VADM SHIMA Kiyohide (39) - 16 September 1943 - 15 February 1944
RADM / VADM KAWANO Chimaki (42) - 15 February 1944 - 20 July 1945

Chief Instructors
??? - 1 May 1943 - 20 July 1945

Surgeons
??? - 1 May 1943 - 20 July 1945

Paymasters
??? - 1 May 1943 - 20 July 1945

Adjutants
??? - 1 May 1943 - 20 July 1945

Radar School
Established on 1 September 1944
Abolished post-war

Commanders
CAPT / RADM TAKAHASHI Yuji (44) - 1 September 1944 - 20 June 1945
VACANT - 20 June 1945 - 15 July 1945
RADM USHIO Fujimasa (42) - 15 July 1945 - 15 September 1945

Chief Instructors
??? - 1 September 1944 - 15 September 1945

Surgeons
??? - 1 September 1944 - 15 September 1945

Paymasters
??? - 1 September 1944 - 15 September 1945

Adjutants
??? - 1 September 1944 - 15 September 1945

Mine School
Established on 1 April 1941
Renamed Anti-Submarine School on 25 March 1944

Commanders
VADM SUGIYAMA Rokuzo (38) - 1 April 1941 - 5 July 1941
VACANT - 5 July 1941 - 20 October 1941
RADM SATO Namizo (39) - 20 October 1941 - 20 January 1944
RADM NABESHIMA Shunsaku (42) - 20 January 1944 - 25 March 1944

Chief Instructors
CAPT KOBE Yuji (45) - 1 April 1941 - 25 April 1942
CDR / CAPT MIKI Takahide (46) - 25 April 1942 - 12 April 1943
CAPT NORIMITSU Saiji (46) - 12 April 1943 - 7 January 1944
CAPT KONNO Nobuo (48) - 7 January 1944 - 7 March 1944
??? - 7 March 1944 - 25 March 1944

Surgeons
??? - 1 April 1941 - 25 March 1944

Paymasters
??? - 1 April 1941 - 25 March 1944

Adjutants
??? - 1 April 1941 - 25 March 1944

Anti-Submarine School
Renamed from Mine School on 25 March 1944
Abolished on 15 July 1945

Commanders
RADM NABESHIMA Shunsaku (42) - 25 March 1944 - 1 May 1945
RADM KAWANO Chimaki (42) - 1 May 1945 - 1 June 1945
RADM KIMURA Masatomi (41) - 1 June 1945 - 15 July 1945

Chief Instructors
??? - 25 March 1944 - 20 April 1944
CAPT / RADM AITOKU Ichiro (45) - 20 April 1944 - 1 April 1945
??? - 1 April 1945 - 15 July 1945

Surgeons
??? - 25 March 1944 - 15 July 1945

Paymasters
??? - 25 March 1944 - 15 July 1945

Adjutants
??? - 25 March 1944 - 15 July 1945

Torpedo Training Center
Established on 2 December 1893
Renamed Torpedo School on 1 April 1907

Commanders
CAPT MORI Matashichiro (1) - 2 December 1893 - 28 July 1894
CAPT KUBOTA Sukeaki (??) - 28 July 1894 - 29 July 1895
CAPT KAMIMURA Shonojo (3) - 29 July 1895 - 26 November 1896
CAPT MOROOKA Yoriyuki (2) - 26 November 1896 - 27 December 1897
CAPT MOCHIHARA Heiji (Cradle) - 27 December 1897 - 2 March 1899
CAPT UCHIDA Zentaro (??) - 2 March 1899 - 1 June 1902
CAPT IIDA Tokunoshin (8) - 1 June 1902 - 27 October 1903
CDR KIMURA Kokichi (9) - 27 October 1903 - 12 January 1904 (Acting)
CAPT ARAKI Ryoichi (??) - 12 January 1904 - 24 January 1905
CAPT NAKAMURA Shizuka (7) - 24 January 1905 - 14 March 1906
CAPT KIMURA Kokichi (9) - 14 March 1906 - 1 April 1907

Chief Instructors
??? - 2 December 1893 - 1 April 1907

Surgeons
??? - 2 December 1893 - 1 April 1907

Paymasters
??? - 2 December 1893 - 1 April 1907

Adjutants
??? - 2 December 1893 - 1 April 1907

Torpedo School
Commanders
CAPT KIMURA Kokichi (9) - 1 April 1907 - 28 August 1908
RADM KITAKOGA Takeichiro (6) - 28 August 1908 - 25 September 1908
CAPT OKADA Keisuke (15) - 25 September 1908 - 25 July 1910
CAPT SUZUKI Kantaro (14) - 25 July 1910 - 1 December 1911
RADM YAJIMA Junkichi (12) - 1 December 1911 - 1 December 1914
RADM MORI Etsutaro (15) - 1 December 1914 - 13 December 1915
RADM KONDO Tsunematsu (15) - 13 December 1915 - 1 December 1916
RADM KAWARA Kesataro (17) - 1 December 1916 - 4 September 1918
RADM HORIUCHI Saburo (17) - 4 September 1918 - 1 December 1918
RADM SAITO Hanroku (17) - 1 December 1918 - 1 December 1920
RADM YOSHIKAWA Yasuhira (22) - 1 December 1920 - 1 December 1921
RADM KUWASHIMA Shozo (20) - 1 December 1921 - 1 June 1923
RADM OTANI Koshiro (23) - 1 June 1923 - 1 December 1924
RADM IIDA Nobutaro (24) - 1 December 1924 - 20 October 1925
RADM NAGASAWA Naotaro (26) - 20 October 1925 - 1 December 1926
RADM TAKAHASHI Ritsuto (28) - 1 December 1926 - 1 December 1927
RADM YASUMI Saburo (29) - 1 December 1927 - 12 September 1929
RADM MATSUYAMA Shigeru (30) - 12 September 1929 - 1 December 1930
RADM ICHIMURA Hisao (31) - 1 December 1930 - 1 December 1932
CAPT / RADM HIGURASHI Toshiu (34) - 1 December 1932 - 15 November 1934
RADM ARICHI Jugoro (33) - 15 November 1934 - 1 December 1936
RADM MIKI Taichi (35) - 1 December 1936 - 10 March 1937
RADM HOSOGAYA Boshiro (36) - 10 March 1937 - 15 November 1937
RADM NAGUMO Chuichi (36) - 15 November 1937 - 15 November 1938
RADM OZAWA Jisaburo (37) - 15 November 1938 - 15 November 1939
RADM / VADM SAKAMOTO Ikuta (36) - 15 November 1939 - 1 September 1941
RADM / VADM KAWASE Shiro (38) - 1 September 1941 - 10 January 1942
RADM MIKI Taichi (35) - 10 January 1942 - 15 March 1943
RADM HASHIMOTO Shintaro (41) - 15 March 1943 - 25 November 1943
RADM / VADM OMORI Sentaro (41) - 25 November 1943 - 10 August 1945
RADM / VADM KOYANAGI Tomiji (42) - 10 August 1945 - 20 November 1945

Chief Instructors
??? - 1 April 1907 - 1 December 1919
CAPT OGURA Yoshiaki (27) - 1 December 1919 - 10 May 1922
CAPT TAKAHASHI Ritsuto (28) - 10 May 1922 - 1 December 1922
CAPT MATSUYAMA Shigeru (30) - 1 December 1922 - 10 May 1923
CAPT TACHI Meijiro (30) - 10 May 1923 - 16 June 1925
CAPT ICHIMURA Hisao (31) - 16 June 1925 - 20 August 1927
CAPT UEMATSU Toma (33) - 20 August 1927 - 30 November 1929
CAPT HIGURASHI Toshiu (34) - 30 November 1929 - 1 December 1931
CAPT SAKAMOTO Ikuta (36) - 1 December 1931 - 15 November 1933
CAPT OKUMA Masakichi (37) - 15 November 1933 - 15 November 1935
CAPT KURITA Takeo (38) - 15 November 1935 - 1 December 1937
CAPT OMORI Sentaro (41) - 1 December 1937 - 15 November 1939
CAPT KOYANAGI Tomiji (42) - 15 November 1939 - 15 October 1940
CAPT HAYAKAWA Mikio (44) - 15 October 1940 - 25 April 1942
CAPT SUGIURA Kaju (46) - 25 April 1942 - 20 February 1943
CAPT ABE Toshio (46) - 20 February 1943 - 6 May 1944
??? - 6 May 1944 - 10 July 1944
CAPT ARUGA Kosaku (45) - 10 July 1944 - 6 November 1944
??? - 6 November 1944 - 1 December 1944
RADM ARAKI Tsuto (45) - 1 December 1944 - 15 July 1945
??? - 15 July 1945 - 20 November 1945

Surgeons
??? - 1 April 1907 - 9 July 1907
(S) LCDR SUZUKI Kannosuke (1897) - 9 July 1907 - 29 July 1908
??? - 29 July 1908 - 1 December 1930
(S) LCDR TAKAHASHI Yutaka (1916) - 1 December 1930 - 14 November 1931
??? - 14 November 1931 - 11 January 1933
(S) CDR KANDATSU Kinsaku (1917) - 11 January 1933 - 1 February 1934
??? - 1 February 1934 - 1 December 1936
(S) CDR KANDATSU Kinsaku (1917) - 1 December 1936 - 17 August 1937
??? - 17 August 1937 - 20 November 1945

Adjutants
LT UEDA Yoshitake (28) - 22 April 1907 - 28 May 1908
LT USUI Kuni (30) - 28 May 1908 - 17 April 1909
LT YASUMI Saburo (29) - 17 April 1909 - 1 December 1909
??? - 1 December 1909 - 23 May 1911
LT / LCDR OZOEGAWA Masaharu (29) - 23 May 1911 - 27 May 1914
??? - 27 May 1914 - 1 December 1914
LCDR NAKAYAMA Tomonobu (30) - 23 September 1914 - 17 February 1916
LT TAKEDA Tadayuki (32) - 1 December 1914 - 1 April 1916
??? - 1 April 1916 - 1 December 1917
LT MIKI Taichi (35) - 1 December 1917 - 1 December 1918
??? - 1 December 1918 - 8 April 1922
LT SENOO Tomoyuki (40) - 8 April 1922 - 1 December 1922
??? - 1 December 1922 - 10 November 1924
LT FURUKAWA Tamotsu (43) - 10 November 1924 - 1 December 1925
??? - 1 December 1925 - 15 November 1933
LCDR KAMEYAMA Minegoro (44) - 15 November 1933 - 22 October 1934
??? - 22 October 1934 - 15 November 1937
CDR AMANO Shigetaka (47) - 15 November 1937 - 1 November 1939
CDR FUKUOKA Tokujiro (48) - 1 November 1939 - 20 August 1941
CDR SHIRAHAMA Masashichi (49) - 20 August 1941 - 1 February 1943

Submarine School
Established on 15 September 1920
Abolished post-war

Commanders
CAPT IMAIZUMI Tetsutaro (25) - 15 September 1920 - 1 December 1921
RADM FUKUDA Teisuke (21) - 1 December 1921 - 1 February 1922
RADM YOSHIKAWA Yasuhira (22) - 1 February 1922 - 1 December 1922
RADM MIYAJI Tamisaburo (25) - 1 December 1922 - 1 October 1923
CAPT NAKAJO Torai (28) - 1 October 1923 - 1 December 1924 (Acting)
RADM KISHII Koichi (28) - 1 December 1924 - 1 December 1925
CAPT SHIGEOKA Shinjiro (30) - 1 December 1925 - 1 December 1927
CAPT ONOMOTO Satoru (31) - 1 December 1927 - 10 December 1928
CAPT NOBETA Shigeoki (32) - 10 December 1928 - 1 December 1930
RADM SHIGEOKA Shinjiro (30) - 1 December 1930 - 1 December 1931
RADM SHIMADA Shigetaro (32) - 1 December 1931 - 2 February 1932
CAPT KITAGAWA Kiyoshi (33) - 2 February 1932 - 28 June 1932
RADM UEMATSU Toma (33) - 28 June 1932 - 15 November 1933
CAPT NOMURA Naokuni (35) - 15 November 1933 - 15 November 1934
RADM WANAMI Hoichi (32) - 15 November 1934 - 15 November 1935
CAPT / RADM UKITA Hidehiko (37) - 15 November 1935 - 1 December 1937
RADM Marquis KOMATSU Teruhisa (37) - 1 December 1937 - 15 November 1938
RADM KUMAOKA Yuzuru (36) - 15 November 1938 - 15 November 1939
RADM TAKASU Sanjiro (37) - 15 November 1939 - 5 July 1941
RADM / VADM HIGUCHI Shuichiro (37) - 5 July 1941 - 15 September 1943
RADM / VADM YAMAZAKI Shigeaki (41) - 15 September 1943 - 23 August 1944
VADM Marquis DAIGO Tadashige (40) - 23 August 1944 - 1 May 1945
VADM ICHIOKA Hisashi (42) - 1 May 1945 - 15 August 1945

Chief Instructors
CDR MASHIKO Rokuya (30) - 15 September 1920 - 15 July 1921
CDR / CAPT SHIGEOKA Nobujiro (30) - 15 July 1921 - 10 November 1923
CDR / CAPT ONOMOTO Satoru (31) - 10 November 1923 - 1 December 1924
CDR / CAPT WANAMI Hoichi (32) - 1 December 1924 - 15 November 1927
CAPT NOBETA Shigeoki (32) - 15 November 1927 - 10 December 1928
CAPT HIRATA Noboru (34) - 10 December 1928 - 1 December 1930
CAPT KUMAOKA Yuzuru (36) - 1 December 1930 - 1 December 1932
CAPT UKITA Hidehiko (37) - 1 December 1932 - 15 November 1934
CAPT SUKIGARA Tamazo (37) - 15 November 1934 - 15 November 1935
CAPT TAKATSUKA Seigo (38) - 15 November 1935 - 1 December 1936
CAPT YOSHITOMI Setsuzo (39) - 1 December 1936 - 15 December 1938
CAPT ISHIZAKI Noboru (42) - 15 December 1938 - 15 November 1940
CAPT ITO Jotaro (42) - 15 November 1940 - 5 December 1942
??? - 5 December 1942 - 6 January 1943
CAPT SASAKI Hankyu (45) - 6 January 1943 - 15 June 1944
??? - 15 June 1944 - 15 August 1945

Surgeons
??? - 15 September 1920 - 1 December 1931
(S) LCDR / (S) CDR ITAKURA Shun (1922) - 1 December 1931 - 22 January 1935
??? - 22 January 1935 - 15 August 1945

Paymasters
??? - 15 September 1920 - 15 August 1945

Adjutants
LT SATO Tsutomu (40) - 15 September 1920 - 16 February 1921
LT HOSHINO Masatsugu (41) - 16 February 1921 - 1 December 1922
??? - 1 December 1922 - 1 June 1925
LT ODA Tamekiyo (43) - 1 June 1925 - 1 April 1927
??? - 1 April 1927 - 10 December 1928
LCDR FUJINAGA Shiro (42) - 10 December 1928 - 30 November 1929
LCDR SAITO Eisho (42) - 30 November 1929 - 14 November 1931
LCDR TAMAKI Tomejiro (45) - 14 November 1931 - 15 November 1933
??? - 15 November 1933 - 15 November 1934
LT / LCDR ANKYU Eitaro (50) - 15 November 1934 - 1 December 1936
??? - 1 December 1936 - 27 July 1943
CAPT SAETSU Tatsuo (49) – 27 July 1943 – 25 May 1945
??? - 25 May 1945 - 15 August 1945

Navigation School
Established on 1 April 1934
Abolished on 1 May 1945

Commanders
RADM OTAGAKI Tomisaburo (34) - 1 April 1934 - 15 November 1935
RADM KOIKE Shiro (37) - 15 November 1935 - 1 December 1937
RADM MOIZUMI Shinichi (37) - 1 December 1937 - 15 November 1940
RADM / VADM TAYUI Minoru (39) - 15 November 1940 - 1 March 1942
VACANT - 1 March 1942 - 10 April 1942
RADM / VADM ABE Kasuke (39) - 10 April 1942 - 20 April 1943
VADM MIKAWA Gunichi (38) - 20 April 1943 - 15 September 1943
RADM HAMADA Kiyoshi (42) - 15 September 1943 - 19 December 1944
RADM KIMURA Susumu (40) - 19 December 1944 - 1 May 1945

Chief Instructors
CAPT TANGE Kunji (36) - 1 April 1934 - 15 November 1934
CAPT KOIKE Shiro (37) - 15 November 1934 - 15 November 1935
CAPT KISHI Fukuji (40) - 15 November 1935 - 5 November 1938
CAPT HAMADA Kiyoshi (42) - 5 November 1938 - 15 October 1940
??? - 15 October 1940 - 15 November 1940
CAPT ISHIWARA Itsu (46) - 15 November 1940 - 1 November 1941
CAPT SEKI Ikuya (43) - 1 November 1941 - 14 April 1943
CAPT SASAKI Seigo (45) - 14 April 1943 - 10 January 1944
CAPT SHIBUYA Kiyomi (45) - 10 January 1944 - 21 February 1944
??? - 21 February 1944 - 1 March 1944
CAPT SEKI Ikuya (43) - 1 March 1944 - 1 July 1944
??? - 1 July 1944 - 5 March 1945
CAPT OISHI Tamotsu (48) - 5 March 1945 - 1 May 1945

Surgeons
(S) CDR AMANO Senkichi (1918) - 1 April 1934 - 1 November 1934
??? - 1 November 1934 - 1 May 1945

Paymasters
??? - 1 April 1934 - 1 May 1945

Adjutants
??? - 1 April 1934 - 21 October 1935
LCDR KITAMURA Fumio (47) - 21 October 1935 - 11 July 1937
??? - 11 July 1937 - 1 May 1945

Tateyama Gunnery School
Established on 1 June 1941
Abolished on 25 April 1945

Commanders
RADM ABE Koso (40) - 1 June 1941 - 2 February 1942
RADM SUZUKI Shinji (37) - 2 February 1942 - 15 December 1942
VACANT - 15 December 1942 - 6 January 1943
RADM MATSUYAMA Mitsuharu (40) - 6 January 1943 - 27 December 1943
RADM / VADM ABE Koso (40) - 27 December 1943 - 25 April 1945

Chief Instructors
CAPT YASUDA Yoshitatsu (46) - 1 June 1941 - 23 April 1942
CAPT KIYAMA Tatsuo (42) - 23 April 1942 - 30 January 1943
??? - 30 January 1943 - 25 April 1945

Surgeons
??? - 1 June 1941 - 25 April 1945

Paymasters
??? - 1 June 1941 - 25 April 1945

Adjutants
??? - 1 June 1941 - 25 April 1945

Gunnery Training Center
Established on 2 December 1893
Renamed Gunnery School on 20 April 1907

Commanders
CAPT HIDAKA Sonojo (2) - 2 December 1893 - 20 July 1894
CAPT SATO Shizuo (Cradle) - 20 July 1894 - 25 July 1895
CAPT Prince TAKEHITO Arisugawa (Cradle) - 25 July 1895 - 5 November 1896
CAPT KATAOKA Shichiro (3) - 5 November 1896 - 27 December 1897
CAPT ONOMOTO Tomomichi (Cradle) - 27 December 1897 - 17 May 1898
CAPT ITO Tsunesaku (3) - 17 May 1898 - 29 September 1899
CAPT TAKAKURA Isamu (??) - 29 September 1899 - 1 November 1900
CAPT SAKURAI Kikunozo (3) - 1 November 1900 - 1 June 1901
CAPT HOSOYA Sukeuji (5) - 1 June 1901 - 22 April 1902
CAPT MATSUMOTO Arinobu (7) - 22 April 1902 - 25 June 1903
CDR OKUMIYA Mamoru (10) - 25 June 1903 - 28 December 1903 (Acting)
CDR / CAPT KIMURA Kokichi (9) - 28 December 1903 - 22 November 1904
CAPT NARITA Katsuro (7) - 22 November 1904 - 20 April 1907

Chief Instructors
??? - 2 December 1893 - 20 April 1907

Surgeons
??? - 2 December 1893 - 3 October 1895
(S) LT TAKEDA Masamori (Cradle) - 3 October 1895 - 10 February 1897
??? - 10 February 1897 - 21 July 1906
(S) LT / (S) LCDR KATO Yasukichi (1896) - 21 July 1906 - 15 December 1906
??? - 15 December 1906 - 20 April 1907

Paymasters
??? - 2 December 1893 - 20 April 1907

Adjutants
??? - 2 December 1893 - 20 April 1907

Gunnery School
Renamed from Gunnery Training Center on 20 April 1907
Renamed Yokosuka Gunnery School on 1 June 1941

Commanders
RADM NARITA Katsuro (7) - 20 April 1907 - 10 August 1907
CAPT OKUMIYA Mamoru (10) - 10 August 1907 - 28 August 1908
CAPT SENDO Takeo (10) - 28 August 1908 - 20 December 1908
CAPT / RADM ARIMA Ryokitsu (12) - 20 December 1908 - 1 December 1910
RADM YOSHIMOTO Shoji (11) - 1 December 1910 - 21 September 1911
RADM NOMAGUCHI Kaneo (13) - 21 September 1911 - 20 April 1912
RADM EGUCHI Rinroku (13) - 20 April 1912 - 1 December 1913
RADM TOGO Kichitaro (13) - 1 December 1913 - 1 December 1914
RADM YAMAJI Kazuyoshi (17) - 1 December 1914 - 1 December 1916
RADM KATO Hiroharu (18) - 1 December 1916 - 8 January 1918
RADM KAWARA Kesataro (17) - 8 January 1918 - 10 July 1918
RADM HORIUCHI Saburo (17) - 10 July 1918 - 10 September 1919
RADM / VADM SATO Kozo (18) - 10 September 1919 - 1 December 1921
VADM YOSHIOKA Hansaku (18) - 1 December 1921 - 1 April 1923
RADM KABAYAMA Bekinari (26) - 1 April 1923 - 1 December 1923
RADM KANESAKA Takashi (27) - 1 December 1923 - 1 December 1925
RADM TAKAHASHI Jutaro (28) - 1 December 1925 - 1 December 1926
RADM OMINATO Naotaro (29) - 1 December 1926 - 1 December 1927
RADM SHIKAE Saburo (30) - 1 December 1927 - 30 November 1929
RADM ONO Hiroshi (32) - 30 November 1929 - 1 December 1931
RADM HARA Keitaro (33) - 1 December 1931 - 15 November 1934
RADM UNO Sekizo (34) - 15 November 1934 - 25 January 1935 (DONC)
VACANT - 25 January 1935 - 1 March 1935
RADM TABATA Hiroyoshi (35) - 1 March 1935 - 1 December 1936
RADM KUSAKA Jinichi (37) - 1 December 1936 - 1 December 1937
RADM MIYATA Giichi (36) - 1 December 1937 - 25 April 1938
RADM OKAWACHI Denshichi (37) - 25 April 1938 - 1 October 1940
VACANT - 1 October 1940 - 15 November 1940
RADM IRIFUNE Naosaburo (39) - 15 November 1940 - 1 June 1941

Chief Instructors
??? - 20 April 1907 - 15 August 1918
CDR / CAPT KANESAKA Takashi (27) - 15 August 1918 - 1 December 1920
CDR KANOE Saburo (30) - 1 December 1920 - 1 December 1921 (Acting)
CAPT KANOE Saburo (30) - 1 December 1921 - 11 June 1923
CDR TORIN Iwajiro (31) - 11 June 1923 - 1 December 1923 (Acting)
CAPT TORIN Iwajiro (31) - 1 December 1923 - 1 December 1924
CAPT ONO Hiroshi (32) - 1 December 1924 - 1 October 1926
CAPT HARA Keitaro (33) - 1 October 1926 - 10 August 1928
CAPT ANDO Takashi (34) - 10 August 1928 - 15 May 1930
CAPT ARAKI Sadaaki (35) - 15 May 1930 - 1 December 1932
CAPT OKAWACHI Denshichi (37) - 1 December 1932 - 20 August 1934
CAPT SATO Seishiro (37) - 20 August 1934 - 20 March 1936
CAPT IRIFUNE Naosaburo (39) - 20 March 1936 - 1 December 1937
CAPT TAKAYANAGI Gihachi (41) - 1 December 1937 - 15 November 1939
CAPT TANAKA Kikumatsu (43) - 15 November 1939 - 24 May 1941
CAPT INOGUCHI Toshihira (46) - 24 May 1941 - 1 June 1941

Surgeons
??? - 20 April 1907 - 9 September 1914
(S) CDR TAKAMIYA Takashi (1898) - 9 September 1914 - 6 November 1914
??? - 6 November 1914 - 10 December 1928
(S) CDR TOYODA Minoru (1911) - 10 December 1928 - 25 January 1930
??? - 25 January 1930 - 21 November 1935
(S) CDR KUROKI Takeshi (1918) - 21 November 1935 - 1 December 1937
(S) CDR MATSUNO Kinji (1922) - 1 December 1937 - 15 October 1939
??? - 15 October 1939 - 1 June 1941

Paymasters
??? - 20 April 1907 - 17 May 1907
(P) CDR YAMAZAKI Hikonoshin (1890) - 17 May 1907 - 17 May 1909
??? - 17 May 1909 - 8 February 1913
(P) CDR IIDA Kyutaro (1900) - 8 February 1913 - 24 May 1913
??? - 24 May 1913 - 1 June 1941

Adjutants
LT HIRAIWA Motoo (26) - 22 April 1907 - 17 May 1907
LCDR MIMURA Kinsaburo (18) - 30 April 1907 - 20 February 1908
LT FUJII Kensuke (30) - 20 April 1908 - 25 May 1909
LT OYAMADA Shigezo (27) - 25 May 1909 - 11 October 1909
??? - 11 October 1909 - 23 March 1911
LT NAKAJIMA Gonkichi (30) - 23 March 1911 - 1 December 1913
LCDR MATSUMOTO Takumi (29) - 22 January 1912 - 20 December 1912
LT TOYODA Soemu (33) - 1 December 1913 - 13 December 1915
LCDR UGAWA Wataru (28) - 18 August 1914 - 3 September 1914
??? - 13 December 1915 - 1 December 1916
LT TAKASU Shiro (35) - 1 December 1916 - 1 December 1917
??? - 1 December 1917 - 1 December 1919
LT KOORI Hidesaburo (37) - 1 December 1919 - 1 December 1920
LT SOEJIMA Daisuke (38) - 1 December 1920 - 1 December 1921
??? - 1 December 1921 - 1 December 1923
LT NISHIO Hidehiko (41) - 1 December 1923 - 1 December 1924
LT YOKOI Tadao (43) - 1 December 1924 - 1 December 1925
LT TANAKA Kikumatsu (43) - 1 December 1925 - 7 June 1926
LT KIYAMA Tatsuo (42) - 7 June 1926 - 1 December 1926
CDR SADA Kenichi (35) - 1 December 1924 - 1 December 1925
LT UEHARA Yoshio (45) - 1 December 1926 - 10 December 1928
CDR TERADA Suketsugu (37) - 1 December 1927 - 15 November 1928
CDR ONO Ichiro (38) - 15 November 1928 - 15 March 1929
??? - 15 March 1929 - 1 April 1932
LCDR MIURA Hayao (45) - 1 April 1932 - 15 November 1932
LCDR / CDR AKIYAMA Monzo (42) - 15 November 1932 - 22 October 1934
LT KISAKA Yoshitane (46) - 1 December 1932 - 25 May 1933
LCDR / CDR IZAWA Ishinosuke (43) - 22 October 1934 - 5 February 1936
??? - 5 February 1936 - 15 December 1938
CDR SAKATA Yoshito (46) - 15 December 1938 - 15 November 1939
??? - 15 November 1939 - 1 June 1941

Yokosuka Gunnery School
Established on 1 June 1941
Abolished post-war

Commanders
RADM IRIFUNE Naosaburo (39) - 1 June 1941 - 17 November 1941
VADM MIYATA Giichi (36) - 17 November 1941 - 15 March 1943
RADM IRIFUNE Naosaburo (39) - 15 March 1943 - 1 November 1943
RADM OBATA Chozaemon (43) - 1 November 1943 - 15 August 1945

Chief Instructors
CAPT INOGUCHI Toshihira (46) - 1 June 1941 - 5 May 1942
CAPT YAMAMORI Kamenosuke (45) - 5 May 1942 - 24 February 1943
??? - 24 February 1943 - 1 December 1943
CAPT INOGUCHI Toshihira (46) - 1 December 1943 - 1 August 1944
??? - 1 August 1944 - 21 August 1944
CAPT Prince NOBUHITO Takamatsu (52) - 21 August 1944 - 27 May 1945
??? - 27 May 1945 - 15 August 1945

Surgeons
??? - 1 June 1941 - 15 August 1945

Paymasters
??? - 1 June 1941 - 15 August 1945

Adjutants
??? - 1 June 1941 - 1 September 1941
CDR NEGISHI Minoru (49) - 1 September 1941 - 26 December 1942
??? - 26 December 1942 - 15 August 1945

Naval College
Established on 16 August 1888
Abolished on 29 May 1945

Directors
RADM INOUE Yoshika (Cradle) - 16 August 1888 - 15 May 1889
RADM ITO Sukeyuki (Cradle) - 15 May 1889 - 24 September 1890
VADM HAYASHI Kiyoyasu (Cradle) - 24 September 1890 - 17 June 1891
VADM NIRE Kagenori (Cradle) - 17 June 1891 - 8 August 1891
VACANT - 8 August 1891 - 12 December 1892
VADM NAKAMUTA Kuranosuke (Cradle) - 12 December 1892 - 20 December 1893
RADM TSUBOI Kozo (Cradle) - 20 December 1893 - 5 November 1896
RADM / VADM SAMEJIMA Kazunori (Cradle) - 5 November 1896 - 1 February 1898
RADM / VADM TOGO Heihachiro (Cradle) - 1 February 1898 - 19 January 1899
VADM SHIBAYAMA Yahachi (Cradle) - 19 January 1899 - 20 May 1900
CAPT SAKAMOTO Toshiatsu (6) - 20 May 1900 - 26 May 1902 (Acting)
RADM SAKAMOTO Toshiatsu (6) - 26 May 1902 - 3 February 1904
RADM / VADM KIMOTSUKI Kaneyuki (Cradle) - 3 February 1904 - 2 November 1905
RADM / VADM SAKAMOTO Toshiatsu (6) - 2 November 1905 - 28 August 1908
VADM SHIMAMURA Hayao (7) - 28 August 1908 - 1 December 1909
RADM KAWASHIMA Reijiro (11) - 1 December 1909 - 1 December 1910
VADM YOSHIMATSU Motaro (7) - 1 December 1910 - 25 September 1911
RADM YAMAYA Tanin (12) - 25 September 1911 - 1 December 1911
VADM YASHIRO Rokuro (8) - 1 December 1911 - 25 September 1913
VADM YOSHIMATSU Motaro (7) - 25 September 1913 - 1 December 1913
VADM YAMAYA Tanin (12) - 1 December 1913 - 22 August 1914
RADM Prince FUSHIMI Hiroyasu (Cradle) - 22 August 1914 - 13 December 1915
RADM / VADM SATO Tetsutaro (14) - 13 December 1915 - 10 August 1920
RADM / VADM KATO Hiroharu (18) - 10 August 1920 - 1 May 1922
VADM HORIUCHI Saburo (17) - 1 May 1922 - 1 June 1923
RADM YAMAMOTO Eisuke (24) - 1 June 1923 - 1 December 1924
VADM OTANI Koshiro (23) - 1 December 1924 - 1 December 1926
RADM / VADM NAKAMURA Ryozo (27) - 1 December 1926 - 30 November 1929
VADM TAKAHASHI Sankichi (29) - 30 November 1929 - 8 February 1932
VADM HYAKUTAKE Gengo (30) - 8 February 1932 - 1 October 1932
VACANT - 1 October 1932 - 15 November 1932
RADM / VADM Viscount KATO Takayoshi (31) - 15 November 1932 - 15 November 1933
RADM / VADM INOUE Tsugumatsu (32) - 15 November 1933 - 2 December 1935
VADM NAKAMURA Kamesaburo (33) - 2 December 1935 - 1 December 1936
VADM SATO Saburo (34) - 1 December 1936 - 1 December 1937
VADM HIBINO Masaharu (34) - 1 December 1937 - 15 November 1938
VADM TAKASU Shiro (35) - 15 November 1938 - 29 September 1939
VACANT - 29 September 1939 - 23 December 1939
VADM SAWAMOTO Yorio (36) - 23 December 1939 - 1 November 1940
VADM NAGUMO Chuichi (36) - 1 November 1940 - 10 April 1941
RADM ABE Kasuke (39) - 10 April 1941 - 6 September 1941 (Acting)
VADM OZAWA Jisaburo (37) - 6 September 1941 - 18 October 1941
VADM ITO Seiichi (39) - 18 October 1941 - 1 June 1942
RADM / VADM* INAGAKI Ayao (38) - 1 June 1942 - 15 September 1942 (DONC)
VACANT - 15 September 1942 - 10 October 1942
ADM OIKAWA Koshiro (31) - 10 October 1942 - 15 November 1943
VACANT - 15 November 1943 - 14 December 1943
ADM YOSHIDA Zengo (32) - 14 December 1943 - 15 March 1944
VADM ITO Seiichi (39) - 15 March 1944 - 18 November 1944
VADM OZAWA Jisaburo (37) - 18 November 1944 - 29 May 1945

Vice-Directors
CAPT MOTOYAMA Susumu (Cradle) - 16 August 1888 - 24 September 1890
??? - 24 September 1890 - 29 May 1945

Chief Instructors
CAPT MOTOYAMA Susumu (Cradle) - 16 August 1888 - 24 September 1890
??? - 24 September 1890 - 26 October 1897
LCDR / CDR SAKAMOTO Toshiatsu (6) - 26 October 1897 - 27 December 1897 (Acting)
CAPT SAKAMOTO Toshiatsu (6) - 27 December 1897 - 20 May 1900
??? - 20 May 1900 - 16 June 1909
CAPT MATSUMURA Tatsuo (14) - 16 June 1909 - 22 May 1911
CAPT SATO Tetsutaro (14) - 22 May 1911 - 1 December 1912
CAPT SHIMOMURA Nobutaro (18) - 1 December 1912 - 27 May 1914
CAPT IIDA Hisatsune (19) - 27 May 1914 - 13 December 1915
??? - 13 December 1915 - 28 January 1916
CAPT IWASAKI Moshiro (21) - 28 January 1916 - 1 December 1920
CAPT NAKAMURA Ryozo (27) - 1 December 1920 - 25 May 1922
??? - 25 May 1922 - 1 December 1922
RADM YAMAMOTO Eisuke (24) - 1 December 1922 - 1 June 1923
CAPT IMAMURA Shojiro (30) - 1 June 1923 - 1 December 1924
RADM TAKAHASHI Jutaro (28) - 1 December 1924 - 1 December 1925
??? - 1 December 1925 - 15 April 1926
RADM HYAKUTAKE Gengo (30) - 15 April 1926 - 1 December 1927
RADM NAKAJIMA Gonkichi (30) - 1 December 1927 - 30 November 1929
RADM INOUE Tsugumatsu (32) - 30 November 1929 - 1 December 1931
RADM ARIMA Yutaka (33) - 1 December 1931 - 1 December 1932
RADM Baron SONODA Minoru (34) - 1 December 1932 - 15 November 1933
RADM KONDO Nobutake (35) - 15 November 1933 - 15 March 1935
RADM SAWAMOTO Yorio (36) - 15 March 1935 - 15 November 1935
RADM IZAWA Haruma (35) - 15 November 1935 - 1 December 1936
RADM SATO Ichiro (36) - 1 December 1936 - 15 November 1938
RADM Marquis KOMATSU Teruhisa (37) - 15 November 1938 - 15 November 1940
RADM ABE Kasuke (39) - 15 November 1940 - 20 September 1941
??? - 20 September 1941 - 15 November 1941
RADM FUJITA Risaburo (40) - 15 November 1941 - 31 December 1941
??? - 31 December 1941 - 15 September 1942
RADM ICHIOKA Hisashi (42) - 15 September 1942 - 9 August 1943
RADM SHIRAISHI Kazutaka (42) - 9 August 1943 - 6 March 1944
RADM OGAWA Kanji (43) - 6 March 1944 - 15 April 1944
RADM TAKAGI Sokichi (43) - 15 April 1944 - 10 September 1944
RADM / VADM ONISHI Shinzo (42) - 10 September 1944 - 5 May 1945
??? - 5 May 1945 - 29 May 1945

Surgeons
??? - 16 August 1888 - 29 May 1945

Paymasters
??? - 16 August 1888 - 12 March 1896
(P) LT FUJITA Tsunetaka (1887) - 12 March 1896 - 28 July 1896
??? - 28 July 1896 - 21 January 1898
(P) LT FUJITA Tsunetaka (1887) - 21 January 1898 - 21 May 1898
??? - 21 May 1898 - 29 September 1899
(P) LT AIHARA Bunshiro (1895) - 29 September 1899 - 20 May 1900
??? - 20 May 1900 - 18 June 1900
(P) LT AIHARA Bunshiro (1895) - 18 June 1900 - 1 August 1900
??? - 1 August 1900 - 5 August 1905
(P) LT IIDA Kyutaro (1900) - 5 August 1905 - 29 December 1905
??? - 29 December 1905 - 22 May 1912
(P) LT TANNAWA Toshio (1905) - 22 May 1912 - 1 December 1913
??? - 1 December 1913 - 5 May 1921
(P) LT KANO Kinzaburo (1913) - 5 May 1921 - 1 April 1922
??? - 1 April 1922 - 29 May 1945

Adjutants
??? – 16 August 1888 – 3 September 1888
LT KATO Tomosaburo (7) - 3 September 1888 - 15 November 1888
??? – 15 November 1888 – 25 December 1888
LT NISHI Shinrokuro (8) - 25 December 1888 - 2 August 1889
??? – 2 August 1889 – 3 September 1889
LT KANO Yunoshin (5) - 3 September 1889 - 15 May 1889
??? – 15 May 1889 – 8 November 1893
LT SAKAMOTO Hajime (7) - 8 November 1893 - 9 June 1894
LT IMAIZUMI Toshiyoshi (8) - 9 June 1894 - 11 April 1895
??? – 11 April 1895 – 17 June 1899
CDR KIMURA Kokichi (9) - 17 June 1899 - 19 June 1900
CDR YAMAYA Tanin (12) - 19 June 1900 - 27 June 1900
??? – 27 June 1900 – 14 August 1901
LCDR YAMANAKA Shibakichi (15) - 14 August 1901 - 12 January 1904
CDR YAMAYA Tanin (12) - 1 September 1901 - 17 July 1902
LCDR HIRAOKA Sadaichi (16) - 17 July 1902 - 28 December 1903
??? – 12 January 1904 – 11 February 1904
LT SEKIDA Komakichi (24) - 11 February 1904 - 12 December 1905
CDR HIRAOKA Sadaichi (16) - 12 December 1905 - 30 August 1906
LCDR / CDR YOSHIDA Kiyokaze (18) - 6 July 1906 - 25 September 1909
CDR SHIMOMURA Nobutaro (18) - 22 November 1906 - 1 December 1909
LCDR YOKOO Hisashi (23) - 1 December 1909 - 1 August 1911
LCDR / CDR SEKIDA Komakichi (24) - 1 August 1911 - 1 May 1914
??? – 1 May 1914 – 1 July 1916
CDR TAKAHASHI Jutaro (28) - 1 July 1916 - 1 November 1918
??? – 1 November 1918 – 1 December 1920
LCDR SADA Kenichi (35) - 1 December 1920 - 1 December 1922
??? – 1 December 1922 – ???
CDR MAKI Akira (32) – ??? – 1 December 1925
CDR SATO Koichi (35) - 1 December 1925 - 15 November 1927
??? – 15 November 1927 – 1 December 1936
CDR / CAPT KUROKI Takeichi (43) - 1 December 1936 - 15 December 1938
CDR KAMATA Shoichi (43) - 15 December 1938 - 15 November 1939
??? – 15 November 1939 – 29 May 1945

[Berend]

Looking for the CO's of oiler Fujisan Maru. I searched this topic for the CO's of the oiler Fujisan Maru but nothing was found.
I only have Capt Miki Kikuta, CO for the period 10.12.41–13.07.43.

Regards,

Berend.