More IJN Officer Info

[fontessa]

Hello Teitoku,

I would say KO Yoriharu or YUFU Kikuo. It is also featured in the group photo of 24 June 1943 (left).

岩崎正英.jpg

He was CAPT Iwasaki Masahide 岩崎正英 (Tech.1924) who had been attached to Combined Fleet HQ on 15 December 1942 (15 C13072088600).

The 1st photo was taken when the Emperor visited Musashi on 24 June 1943. There were 81 naval officers other than the Emperor and Imperial Highness Takamatsu. The reprinted photographs were given to the 81 officers one by one with the warning that the photo was confidential. The photo had a transparent overlay (Fig. 2) with the surnames and ranks of all officers. According to it, the officer in question was Navy Technical (Ship Building) Captain Iwasaki Masahide.
(1) His additional post was Akashi (Repair Ship)'s repair department member.
(2) Navy Technical (Ship Building) Captain Masukata Narasaburo 桝方楢三郎 (Tech.1920) was detached from Combined Fleet HQ on 15 December 1942. His additional post had been also Akashi's repair department member.
(3) I guess they controlled Akashi's repair work for Combined Fleet ships.

武蔵 1.jpg

武蔵 2.jpg

fontessa

[ijnfleetadmiral]

I've been working on figuring out who's who in that pic. There's probably an English translation out there, but I haven't been able to find it. Here's what I have thus far...TIA for anyone who can fill in blanks like names, classes, and what they did.

Top Row, from L to R
LTJG SHIRAKI Hirotsugu (???)
LT
LT
LT
LT AMAMIYA Takeo (???)
LT KUDO Shiro (???)
LT FURUYAMA Katsuya (64) (Combined Fleet Communications Staff Officer)
LT TANAKA Kichitaro (???)
LT
LT
LT
LT SAKUMA Takeshi (66) (MUSASHI Air Officer)
LT KANNO Chisa (???)
LTJG
LTJG WAKABAYASHI Nobuo (???)

Fourth Row, from L to R
LT WADA Akiji (??) (Combined Fleet Medical Staff Officer)
LT YAMAMOTO Seishichi (Spec. Duty 6) (Combined Fleet Special Duty Staff Officer)
LCDR KATO Minoru (58) (Combined Fleet Adjutant)
LCDR
LCDR
CDR DOI Kazuo (54) (Combined Fleet Navigation Staff Officer)
CDR TAKAO Takumi (53) (Combined Fleet Gunnery Officer & Jr. Operations Staff Officer)
CDR
CDR FUKUMOTO Yoshinori (52) (MUSASHI Secondary Gunnery Officer)
CDR (Eng.) KIMURA Chosuke (Eng. 33) (MUSASHI Damage Control Officer)
LCDR
LCDR SHIMADA Koichi (55) (Combined Fleet Jr. Air Staff Officer)
LCDR (Sup.) MATSUMOTO Yuzo (Pay. 16) (MUSASHI Paymaster)
LCDR SUZUKI Koichi (59) (Combined Fleet Gunnery Staff Officer)
LT KOGA Sukemitsu (62) (MUSASHI AA Gunnery Officer)
LT KATSUWA Hisao (63) (MUSASHI Division Gunnery Officer)

Third Row, from L to R
CDR
Civilian
NOMURA Rikichi (Head of Crown Prince's Household)
CDR KUDO Hakaru (50) (MUSASHI Operations Officer)
CDR OKUMOTO Yoshiyuki (Eng. 32) (Combined Fleet Engineering Staff Officer)
CDR YAMAGUCHI Hajime (50) (Combined Fleet Adjutant)
CDR YUNOKI Shigenori (50) (MUSASHI Gunnery Officer)
CAPT
CAPT (Tech.) IWASAKI Masahide (Tech. 1924) (Combined Fleet Staff Officer)
CAPT (Med.) FUJIKI Hiroshi (Med. 1924) (MUSASHI Surgeon)
CDR SANADA Yuji (50) (Yokosuka Naval District Staff)
CDR WADA Yushiro (51) (Combined Fleet Communications Staff Officer)
CDR MIYA Yujiro (50) (MUSASHI Navigator)
CDR YAMAMOTO Tadashi (51) (MUSASHI Communications Officer)
CDR SHIMAMURA Nobumasa (51) (Combined Fleet Meteorologist)
CDR KOIKE Itsu (52) (Combined Fleet Torpedo Officer)
CDR FUJITA Masamichi (52) (Combined Fleet Staff Officer)

Second Row, from L to R
OGURA Kuraji (Emperor's Chief Aide)
KOGANE Masujiro (???)
CAPT FUJII Shigeru (49) (Combined Fleet Navigation Staff Officer)
LTC OGATA ???
CAPT JYO Eiichiro (47) (Aide-de-Camp to Secretary of Military Council Committee)
CAPT NIJIMA Nobuo (46) (Naval General Staff Adjutant)
CAPT TAKADA Toshitane (46) (Combined Fleet Senior Staff Officer)
CAPT (Med.) OKUBO Shin (Med. 1918) (Combined Fleet Surgeon)
RADM KUBOTA Yoshio (Eng. 25) (Combined Fleet Chief Engineer)
CAPT (Sup.) KITAMURA Motoharu (Pay. 5) (Combined Fleet Paymaster)
CAPT KOMURA Keizo (45) (MUSASHI CO)
CAPT YANAGISAWA Kuranosuke (46) (Combined Fleet Communications Staff Officer)
CAPT YAMAMOTO Yoshio (47) (War Plans Dept. Head, Naval Affairs Bureau)
CAPT SATO Jisaburo (48) (Emperor's Aide-de-Camp)
CAPT KATO Kenkichi (48) (MUSASHI XO)
CAPT KOYAMA Kiyoyuki (Eng. 30) (MUSASHI Chief Engineer)
HATTA Zennoshin (Emperor's Personal Physician)
SUMIKURA Shiro (Secretary to Head of Imperial Household)

Front Row (from L to R)
RADM KOBAYASHI Kengo (42) (Vice-Chief-of-Staff, Combined Fleet)
VADM NAKAMURA Toshihisa (39) (Emperor's Aide-de-Camp)
VADM SUGIYAMA Rokuzo (38) (Director, Naval Shipbuilding Command)
ADM TOYODA Soemu (33) (CinC Yokosuka Naval District)
GEN HASUNUMA Shigeru (Emperor's Chief Aide-de-Camp)
ADM NAGANO Osami (28) (Chief of Naval General Staff)
Marquis KIDO Koichi (Lord Keeper of the Privy Seal)
CAPT Prince TAKAMATSU Nobuhito (52) (Emperor Hirohito's brother)
EMPEROR HIROHITO
MATSUDAIRA Tsuneo (Head of Imperial Household)
ADM SHIMADA Shigetaro (32) (Navy Minister)
ADM KOGA Mineichi (34) (CinC Combined Fleet)
ADM HYAKUTAKE Saburo (19) (Imperial Chamberlain)
VADM TSUKAHARA Nishizo (36) (Director, Naval Air Command)
VADM (Tech.) FUKUDA Keiji (Tech. 1914) (4th Bureau Chief, Naval Shipbuilding Command)
VADM FUKUDOME Shigeru (40) (Chief-of-Staff, Combined Fleet)
RADM NAKAZAWA Tasuku (43) (N-1, Naval General Staff)

[fontessa]

Hello ijnfleetadmiral,

RO-34
Officers for Navigation Duty
(EO) – LTJG NOMURA Shunji (60) – ??? – 31 May 1937
LTJG NOMURA Shunji (60) – 31 May 1937 – 21 November 1937
VACANT – 21 November 1937 – 1 December 1937
LTJG WADA Mutsuo (61) - 1 December 1937 - 28 March 1938
??? - 28 March 1938 - 1 May 1940
LT ITAKURA Mitsumi (61) – 1 May 1940 – 20 September 1940
??? – 20 September 1940 – 30 October 1941
ENS / LTJG KIRIHARA Yoshisuke (68) - 30 October 1941 - 16 January 1943
LTJG / LT* NAKAMURA Tsuyoshi (69) - 16 January 1943 - 5 April 1943 (KIA)

(EO) LTJG / LTJG NOMURA Toshiharu 野村俊治 (60): 1 December 1936 - 31 May 1937 (1936.12.2.Frm28)
LTJG / LTJG NOMURA Toshiharu 野村俊治 (60): 31 May 1937 - 22 November 1937 (13 C13072072600)
VACANT: 22 November 1937 - 1 December 1937
LTJG / LTJG FUKUI Mutsuo **福井睦雄 (61): 1 December 1937 - 28 March 1938 (17 C13072072800 / 10 C13072073600)
LTJG / LTJG EBATO Kazuo 江波戸和郎 (61): 28 March 1938 - 5 July 1938 (11 C13072073600 / 13 C13072074100)
ENS / ENS YAMAOKA Daiji 山岡大二 (63): 5 July 1938 - 1 August 1938 (13 C13072074100 / 9 C13072074200)
VACANT: 1 August 1938 - 15 August 1938
LTJG / NAGAI Yasuhide 永井保栄 (61): 15 August 1938 - 1 November 1939 (32 C13072074200 / 17 C13072076600)
VACANT: 1 November 1939 - 1 May 1940
LT / LT ITAKURA Mitsuma 板倉光馬 (61): 1 May 1940 - 20 September 1940 (16 C13072078000 / 46 C13072078800)
VACANT: 20 September 1940 - 15 November 1940
ENS / ENS WATANABE Ichiro 渡辺一郎 (67): 15 November 1940 - 26 May 1941 (1 C13072079600 / 27 C13072081100)
VACANT: 26 May 1941 - 30 October 1941
ENS / LTJG KIRIHARA Yoshisuke 桐原喜典 (68): 30 October 1941 - 16 January 1943 (33 C13072082900 / 8 C13072089400)
LTJG / LTJG / LT* NAKAMURA Tsuyoshi 中村剛 (69): 16 January 1943 - 5 April 1943 (KIA) (8 C13072089400)
** Changed name from 福井睦雄 to 和田睦雄 on 15 November 1938.

RO-41
Officers for Navigation Duty
??? – 26 November 1943 – 15 August 1944

ENS / LTJG AOKI Ahigeru 青木滋 (71): 26 November 1943 - 15 August 1944 (51 C13072094500 / 16 C13072100600)

RO-42
Officers for Navigation Duty
??? - 31 August 1943 - 1 February 1944
LTJG / LT* TAKAHASHI Minoru (70) - 1 February 1944 - 10 June 1944 (KIA)

LTJG / LTJG ISHINO Jikyo 石野自彊 (69): 31 August 1943 - 1 February 1944 (15 C13072092700 / 11 C13072095600)
LTJG / LT* TAKAHASHI Minoru 高橋実 (70): 1 February 1944 - 11 June 1944 (KIA) (11 C13072095600)

RO-45
Officers for Navigation Duty
LTJG / LT* / LCDR* SATO Ichiro (70) - 11 January 1944 - 30 April 1944 (KIA)

I confirmed the above.

fontessa

[ijnfleetadmiral]

Awesome...thanks! One discrepancy:

For RO-41, I have AOKI Shigeru (71) listed as the following now:

RO-41 Navigator - 26 November 1943 - 15 August 1944
RO-46 Equipping Officer - 26 November 1943 - 20 January 1944
RO-46 Navigator - 20 January 1944 - 15 August 1944

Was the posting to RO-46 an additional duty? TIA for any info on this.

[fontessa]

RO-46 Equipping Officer - 26 November 1943 - 20 January 1944
RO-46 Navigator - 20 January 1944 - 15 August 1944
Was the posting to RO-46 an additional duty?

I couldn't confirm the above.
RO-46 was commissioned on 19 February 1944.
Commanding Officer;
LT Suzuki Masakixhi
Crew;
LT SAKAMOTO Michiji
LTJG BANDO Muneo
LTJG MOTOFUSA Yoshimitsu

青木滋1.jpg

青木滋2.jpg

呂号第46潜水艦.jpg

fontessa

[ijnfleetadmiral]

Ah...now things make sense! I checked my records for the officers you listed above and now have the following for RO-46. TIA for any thoughts/opinions.

RO-46
Commanding Officers
(CEO) - LT KAMIHIROSHI Yasuo (66) - 31 December 1943 - 20 January 1944
(CEO) - LT SUZUKI Shokichi (62) - 20 January 1944 - 19 February 1944
LT / LCDR SUZUKI Shokichi (62) - 19 February 1944 - 9 December 1944
LT TOKUNAGA Masahiko (67) - 9 December 1944 - 19 March 1945
LCDR / CDR* KIMURA Masao (63) - 19 March 1945 - 29 April 1945 (KIA)

Torpedo Officers
(EO) LT SAKAMOTO Michiji (67) - ??? - 19 February 1944
LT SAKAMOTO Michiji (67) - 19 February 1944 - 31 August 1944
LT ONO Shimpei (68) - 31 August 1944 - ??? (end date possibly 15 December 1944, when he was posted CO of RO-62)
??? - ??? - 29 April 1945

Navigators
(EO) LTJG BANDO Muneo (70) - 10 January 1944 - 19 February 1944 (relieved as I-158 Navigator on 10 January 1944)
LTJG BANDO Muneo (70) - 19 February 1944 - ??? (end date possibly until 1 December 1944, when he was posted Equipping Officer of I-401)
VACANT - 1 December 1944 - 14 December 1944 (possibly?)
LT / LCDR* KURITA Yoshifumi (69) - 14 December 1944 - 29 April 1945 (KIA)

Chief Engineers
(EO) - LT MOTOFUSA Yoshimitsu (??) - ??? - 19 February 1944
LT MOTOFUSA Yoshimitsu (??) - 19 February 1944 - ???
??? - ??? - 29 April 1945

[fontessa]

Hello ijnfleetadmiral,

Torpedo Officers
(EO) LT SAKAMOTO Michiji (67) - ??? - 19 February 1944
LT SAKAMOTO Michiji (67) - 19 February 1944 - 31 August 1944
LT ONO Shimpei (68) - 31 August 1944 - ??? (end date possibly 15 December 1944, when he was posted CO of RO-62)
??? - ??? - 29 April 1945

(EO) LT / LT SAKAMOTO Michiji 坂本道二 (67): 31 January 1944 - 19 February 1944 (23 C13072095500 / 10 C13072096000)
LT / LT SAKAMOTO Michiji 坂本道二 (67): 19 February 1944 - 31 August 1944 (10 C13072096000 / 5 C13072100800)
LT / LT ONO Shimpei 小野信平 (68): 31 August 1944 - 15 December 1944 (5 C13072100800 / 33 C13072102300)
LT / LT / LCDR* KURITA Yoshifumi 栗田義文 (69): 15 December 1944 - 29 April 1945 (KIA)

Navigators
(EO) LTJG BANDO Muneo (70) - 10 January 1944 - 19 February 1944 (relieved as I-158 Navigator on 10 January 1944)
LTJG BANDO Muneo (70) - 19 February 1944 - ??? (end date possibly until 1 December 1944, when he was posted Equipping Officer of I-401)
VACANT - 1 December 1944 - 14 December 1944 (possibly?)
LT / LCDR* KURITA Yoshifumi (69) - 14 December 1944 - 29 April 1945 (KIA)

(EO) LTJG / LTJG BANDO Muneo 坂東宗雄 (70): 10 January 1944 - 9 February 1944 (47 C13072095200 / 10 C13072096000)
LTJG / LT BANDO Muneo 坂東宗雄 (70): 9 February 1944 - 1 December 1944 (10 C13072096000 / 14 C13072102200)
LT / LT AZUMA Toshio 東俊男 (71): 1 December 1944 - 1 March 1945 (4 C13072102200 / 41 C13072103700)
LTJG / LTJG / LT* KAMEI Hisashgi 亀井寿 (72): 1 March 1945 - 29 April 1945 (KIA) (44 C13072103700)

Chief Engineers
(EO) - LT MOTOFUSA Yoshimitsu (??) - ??? - 19 February 1944
LT MOTOFUSA Yoshimitsu (??) - 19 February 1944 - ???
??? - ??? - 29 April 1945

I don’t think he was engineer branch officer. I thik that the officer for engineer of Ro-46 was a special duty officer.

See the 3rd picture of my previous post.
海軍中尉 Naval LTGD;
坂東宗雄 BANDO Muneo (5320) [70]
本房義光 MOTOFUSA Yoshimitsu (5740)
In the 2nd picture;
海軍中尉 Naval LTGD;
青木滋 AOKI Shigeru (5816) [71]
宮本山松 MIYAMOTO Yamamatsu (5781)
In the 1st picture;
海軍主計中尉 Naval LTJG (Pay.);
北川敬 KITAGAWA Kei (1803)
The numbers in parentheses were called 電報符 Telegram Letter. Actually, it was not related to telegram, but was the "order" as the resoults of personnel appraisal. This was taken into account in the promotion. As for engineer and accounting branches, Telegram Letter was smaller than that of regular officers because the number of engineer and accounting branch officers was small, but the upper four had close numbers. Therefore, it can be said that these four are regular officers. Since the bottom is the accounting branch officer, Telegram Letter was considerably smaller than regular officers. But the 2nd and 4th couldn't find the graduation period of Etajima.
What I said may be wrong. I would like to research a little more.

fontessa

[ijnfleetadmiral]

Awesome...thanks! As for MOTOFUSA, I have him as Chief Engineer of I-501 from 15 July 1945 - 1 February 1946, if that helps any.

More questions about RO-boats...TIA for any help with these.

1) Was TAMAKI Jiro (70) Officer for Navigator at the time of RO-47's loss? Her CO was ISHIKAWA Nagao (65) and her Torpedo Officer was OBA Saburo (68).

2) Is the following correct for RO-49?
Torpedo Officers
(EO) - LT YUCHI Atsushi (66) - ??? - 19 May 1944
LT YUCHI Atsushi (66) - 19 May 1944 - 5 September 1944
LT / LCDR* KUMABE Tsunehiro (68) - 5 September 1944 - 5 April 1945 (KIA)

Navigators
??? - 19 May 1944 - 15 August 1944
LTJG / LT INABA Tenyo (71) - 15 August 1944 - 3 February 1945
LTJG / LT* NAGASAWA Kumataro (72) - 3 February 1945 - 5 April 1945 (KIA)

Chief Engineers
??? - 19 May 1944 - 5 April 1945 (KIA)

3) Is the following correct for RO-100?
Torpedo Officers
??? - 23 September 1942 - 10 December 1942
LT ICHIMURA Rikinosuke (64) - 10 December 1942 - 15 February 1943
??? - 15 February 1943 - 15 June 1943
LT / LCDR* ABE Kazuo (66) - 15 June 1943 - 25 November 1943 (KIA)

Navigators
??? - 23 September 1942 - 22 November 1943
LTJG / LT* Takemoto Yasuaki (70) - 22 November 1943 - 25 November 1943 (KIA)

Chief Engineers
??? - 23 September 1942 - 25 November 1943 (KIA)

4) Is the following correct for RO-105?
Torpedo Officers
??? - 5 March 1943 - 20 February 1944
LT / LCDR* SHIINA Hideo (68) - 20 February 1944 - 31 May 1944 (KIA)

Navigators
??? - 5 March 1943 - ???
LT / LCDR* KURASHINA Takao (70) - ??? - 31 May 1944 (KIA)

Chief Engineers
??? - 5 March 1943 - 31 May 1944 (KIA)

5) Is the following correct for RO-106?
Torpedo Officers
(EO) - LT TAKEMA Chuzo (65) - ??? - 26 December 1942
LT TAKEMA Chuzo (65) - 26 December 1942 - 20 January 1944
LT / LCDR* SHIGETA Osamu (67) - 20 January 1944 - 22 May 1944 (KIA)

Navigators
??? - 26 December 1942 - 3 December 1943
ENS / LTJG / LT* HAGIWARA Tatsuo (71) - 3 December 1943 - 22 May 1944 (KIA)

Chief Engineers
??? - 26 December 1942 - 22 May 1944 (KIA)

6) Is the following correct for RO-109?
Torpedo Officers
??? - 30 April 1943 - ???
LTJG TOKIOKA Takami (67) - ??? - ???
LTJG / LT* YAMADA Tomizo (72) - ??? - 29 April 1945 (KIA)

Navigators
??? - 30 April 1943 - 15 August 1944
LTJG / LT TATEYAMA Takashi (71) - 15 August 1944 - 1 March 1945
??? - 1 March 1945 - 29 April 1945 (KIA)

Chief Engineers
??? - 30 April 1943 - 29 April 1945 (KIA)

7) Is the following correct for RO-111?
Torpedo Officers
LTJG HARADA Kiyoshi (66) - 19 July 1943 - ???
??? - ??? - 15 April 1944
LT / LCDR* AMANO Takayuki (66) - 15 April 1944 - 10 June 1944 (KIA)

Navigators
??? - 19 July 1943 - 20 April 1944
LTJG / LT* KOTAKE Hiroshi (71) - 20 April 1944 - 10 June 1944 (KIA)

Chief Engineers
??? - 19 July 1943 - 10 June 1944 (KIA)

8) Is the following correct for RO-116?
Torpedo Officers
??? - 21 January 1944 - 23 February 1944
LT / LCDR* KOYAMA Dairoku (67) - 23 February 1944 - 24 May 1944 (KIA)

Navigators
??? - 21 January 1944 - ???
LTJG / LT* UEDOI Hisashi (70) - ??? - 24 May 1944 (KIA)

Chief Engineers
??? - 21 January 1944 - 24 May 1944 (KIA)

9) Is the following correct for RO-501?
Torpedo Officers
(EO) - LT KUBOTA Yoshimitsu (66) - 15 February 1944 - 28 February 1944
LT / LCDR* KUBOTA Yoshimitsu (66) - 28 February 1944 - 31 May 1944 (KIA)

Navigators
(EO) - LT SUNAGA Takashi (68) - 15 February 1944 - 28 February 1944
LT SUNAGA Takashi (68) - 28 February 1944 - 31 May 1944 (KIA)

Chief Engineers
??? - 15 February 1944 - 31 May 1944 (KIA)

[Teitoku]

I've been working on figuring out who's who in that pic. There's probably an English translation out there, but I haven't been able to find it. Here's what I have thus far...TIA for anyone who can fill in blanks like names, classes, and what they did.

Top Row, from L to R
LTJG SHIRAKI Hirotsugu (???)
LT
LT
LT
LT AMAMIYA Takeo (???)
LT KUDO Shiro (???)
LT FURUYAMA Katsuya (64) (Combined Fleet Communications Staff Officer)
LT TANAKA Kichitaro (???)
LT
LT
LT
LT SAKUMA Takeshi (66) (MUSASHI Air Officer)
LT KANNO Chisa (???)
LTJG
LTJG WAKABAYASHI Nobuo (???)

Fourth Row, from L to R
LT WADA Akiji (??) (Combined Fleet Medical Staff Officer)
LT YAMAMOTO Seishichi (Spec. Duty 6) (Combined Fleet Special Duty Staff Officer)
LCDR KATO Minoru (58) (Combined Fleet Adjutant)
LCDR AOKI Tatsuo
LCDR
CDR DOI Kazuo (54) (Combined Fleet Navigation Staff Officer)
CDR TAKAO Takumi (53) (Combined Fleet Gunnery Officer & Jr. Operations Staff Officer)
CDR
CDR FUKUMOTO Yoshinori (52) (MUSASHI Secondary Gunnery Officer)
CDR (Eng.) KIMURA Chosuke (Eng. 33) (MUSASHI Damage Control Officer)
LCDR
LCDR SHIMADA Koichi (55) (Combined Fleet Jr. Air Staff Officer)
LCDR (Sup.) MATSUMOTO Yuzo (Pay. 16) (MUSASHI Paymaster)
LCDR SUZUKI Koichi (59) (Combined Fleet Gunnery Staff Officer)
LT KOGA Sukemitsu (62) (MUSASHI AA Gunnery Officer)
LT KATSUWA Hisao (63) (MUSASHI Division Gunnery Officer)

Third Row, from L to R
CDR
Civilian
NOMURA Rikichi (Head of Crown Prince's Household)
CDR KUDO Hakaru (50) (MUSASHI Operations Officer)
CDR OKUMOTO Yoshiyuki (Eng. 32) (Combined Fleet Engineering Staff Officer)
CDR YAMAGUCHI Hajime (50) (Combined Fleet Adjutant)
CDR YUNOKI Shigenori (50) (MUSASHI Gunnery Officer)
CAPT SANAGI Sadamu (50)
CAPT (Tech.) IWASAKI Masahide (Tech. 1924) (Combined Fleet Staff Officer)
CAPT (Med.) FUJIKI Hiroshi (Med. 1924) (MUSASHI Surgeon)
CDR SANADA Yuji (50) (Yokosuka Naval District Staff)
CDR WADA Yushiro (51) (Combined Fleet Communications Staff Officer)
CDR MIYA Yujiro (50) (MUSASHI Navigator)
CDR YAMAMOTO Tadashi (51) (MUSASHI Communications Officer)
CDR SHIMAMURA Nobumasa (51) (Combined Fleet Meteorologist)
CDR KOIKE Itsu (52) (Combined Fleet Torpedo Officer)
CDR FUJITA Masamichi (52) (Combined Fleet Staff Officer)

Second Row, from L to R
OGURA Kuraji (Emperor's Chief Aide)
KOGANE Masujiro (???)
CAPT FUJII Shigeru (49) (Combined Fleet Navigation Staff Officer)
LTC OGATA ???
CAPT JYO Eiichiro (47) (Aide-de-Camp to Secretary of Military Council Committee)
CAPT NIJIMA Nobuo (46) (Naval General Staff Adjutant)
CAPT TAKADA Toshitane (46) (Combined Fleet Senior Staff Officer)
CAPT (Med.) OKUBO Shin (Med. 1918) (Combined Fleet Surgeon)
RADM KUBOTA Yoshio (Eng. 25) (Combined Fleet Chief Engineer)
CAPT (Sup.) KITAMURA Motoharu (Pay. 5) (Combined Fleet Paymaster)
CAPT KOMURA Keizo (45) (MUSASHI CO)
CAPT YANAGISAWA Kuranosuke (46) (Combined Fleet Communications Staff Officer)
CAPT YAMAMOTO Yoshio (47) (War Plans Dept. Head, Naval Affairs Bureau)
CAPT SATO Jisaburo (48) (Emperor's Aide-de-Camp)
CAPT KATO Kenkichi (48) (MUSASHI XO)
CAPT KOYAMA Kiyoyuki (Eng. 30) (MUSASHI Chief Engineer)
HATTA Zennoshin (Emperor's Personal Physician)
SUMIKURA Shiro (Secretary to Head of Imperial Household)

Front Row (from L to R)
RADM KOBAYASHI Kengo (42) (Vice-Chief-of-Staff, Combined Fleet)
VADM NAKAMURA Toshihisa (39) (Emperor's Aide-de-Camp)
VADM SUGIYAMA Rokuzo (38) (Director, Naval Shipbuilding Command)
ADM TOYODA Soemu (33) (CinC Yokosuka Naval District)
GEN HASUNUMA Shigeru (Emperor's Chief Aide-de-Camp)
ADM NAGANO Osami (28) (Chief of Naval General Staff)
Marquis KIDO Koichi (Lord Keeper of the Privy Seal)
CAPT Prince TAKAMATSU Nobuhito (52) (Emperor Hirohito's brother)
EMPEROR HIROHITO
MATSUDAIRA Tsuneo (Head of Imperial Household)
ADM SHIMADA Shigetaro (32) (Navy Minister)
ADM KOGA Mineichi (34) (CinC Combined Fleet)
ADM HYAKUTAKE Saburo (19) (Imperial Chamberlain)
VADM TSUKAHARA Nishizo (36) (Director, Naval Air Command)
VADM (Tech.) FUKUDA Keiji (Tech. 1914) (4th Bureau Chief, Naval Shipbuilding Command)
VADM FUKUDOME Shigeru (40) (Chief-of-Staff, Combined Fleet)
RADM NAKAZAWA Tasuku (43) (N-1, Naval General Staff)

[ijnfleetadmiral]

Thanks!

[fontessa]

Hello ijnfleetadmiral,

As for MOTOFUSA, I have him as Chief Engineer of I-501 from 15 July 1945 - 1 February 1946, if that helps any.

Thanks for the comment.

Chief Engineers
(EO) - LT MOTOFUSA Yoshimitsu (??) - ??? - 19 February 1944
LT MOTOFUSA Yoshimitsu (??) - 19 February 1944 - ???
??? - ??? - 29 April 1945

I don’t think he was engineer branch officer. I thik that the officer for engineer of Ro-46 was a special duty officer.

I checked various things.
From the historical background regarding the engineer branch (called 機関科問題 Engineer Branch Problem), IJN integrated the class names as follows in 1943.
(1) 大尉 (Regular), (2) 機関大尉 (Engineer), (3) 予備大尉 (Reserve) (4) 特務大尉 (Special Duty)
→
大尉
Regarding (1) and (2), IJN took this opportunity to integrate the Telegram Letters.
So the bellow Naval Engineer School graduation had Telegram Letters close to the other two Naval Academy graduation.
本房義光 MOTOFUSA Yoshimitsu (5740)
宮本山松 MIYAMOTO Yamamatsu (5781)
坂東宗雄 BANDO Muneo (5320) [70]
青木滋 AOKI Shigeru (5816) [71]

According to WATANABE Hiroshi's TROM, the complete list for the officers for engineer of Ro-46 is as below.
(EO) LTGJ / LTJG MOTOFUSA Yoshimitsu 本房義光: 10 January 1944 - 19 February 1944
LTGJ / LTJG MOTOFUSA Yoshimitsu 本房義光: 19 February 1944 - 10 August 1944
LTGJ / LTJG MATSUMURA Chunosuke 松村仲之輔: 10 August 1944 - 29 November 1944
LTGJ / LTJG MINAGAWA Akira 三涛川明: 29 November 1944 - 20 February 1945
LTJG / LTJG / LT* UMEHARA Yoshito 梅原芳人: 20 February 1945 - 29 April 1945 (KIA)**
** Sunk by the bombing of Avengers from USS Tulagi, CVE-72, and all 85 crew were KIA.

fontessa

[ijnfleetadmiral]

Awesome...thanks! Were all four Special Duty Officers or were some Engineer Academy graduates in later classes?

[fontessa]

Hello ijnfleetadmiral,

At first, I would like to correct the TROM's mistake.

LTGJ / LTJG MINAGAWA Akira 三涛川明: 29 November 1944 - 20 February 1945

LTGJ / LTJG KIYOKAWA Akira 清川明: 29 November 1944 - 20 February 1945

Awesome...thanks! Were all four Special Duty Officers or were some Engineer Academy graduates in later classes?

本房義光 MOTOFUSA Yoshimitsu (5740)
松村仲之輔 MATSUMURA Chunosuke (6361)
清川明 KIYOKAWA Akira (5434)
梅原芳人 UMEHARA Yoshito (6158)
They all had Telegram Letters. It means that all of them were Naval Engineer School Graduates, not SDs.

fontessa

[ijnfleetadmiral]

Thanks for the info! Any idea as to their classes, or is that info unavailable?

[fontessa]

Any idea as to their classes, or is that info unavailable?

I have no idea when I will be able to access the library sources next time.

fointessa