Home Page World War II Armed Forces — Orders of Battle and Organizations Last Updated 25.11.2014
Imperial Japanese Navy
Converted Minelayers
In cooperation with Jeff Donahoo
The format for names is Japanese style: rank; last name, first name; Japanese name in Kaji;
(and in brackets the officer's graduating class of the Naval Academy at Etajima, if applicable).
(M) Behind the name indicates a merchant marine (civilian) officer.
Rank as was at the date he took command, whether as supervisor or captain.
If an officer is shown as being in command before the ship was commissioned, he was Chief Equipping Officer, becoming Commanding Officer on the date the ship was commissioned.
Dates are given thus: day.month.year
Commanders marked with * are known to have died.
Choan Maru    長安丸
   Builder: Mitsubishi Jukogyo Hikoshima Zosensho
   Owner: Nishinihon Kisen KK  
   Call Sign: JIDG  
   Official Number: C1875  
   Laid Down: 23.10.1934
   Launched: 16.01.1935
   Completed (330 GRT): 25.04.1935
   Requisitioned: 12.09.1941
    Service:  
      ? ?
   Fate: Sunk 12.10.44  
   Removed from Navy List: 10.02.1945
   Commanding Officers:  
      ? ?
Eijo Maru    永城丸    エイジョウ
   Builder: Mitsubishi Jukogyo Konan Zosensho
   Owner: Toa Kaiun KK  
   Call Sign: JZLU  
   Official Number: 51950  
   Laid Down: 27.04.1905
   Launched: 11.08.1944
   Completed (2,274 GRT): 02.09.1944
   Requisitioned: 10.03.1945
    Service:  
      1st Escort Fleet.7th Fleet 10.03.45\10.04.45
      18 Escort Sqd.7th Fleet 10.04.45\05.06.45
      7th Fleet 05.06.45\
Fate:  Sunk 07.06.45 at 01:45 by USS Spadefish (SS-411) off Motsutanozaki (42°43'N, 139°57'E); ? dead; ? saved.
    Removed from Navy List: 10.08.1945
   Commanding Officers:  
      LtCdr Sonoda Hajime (60) 薗田 肇07.04.45\15.04.45
      LtCdr Saimu Motoi (66) 宰務 礎15.04.45\
Kinjo Maru    金城丸
   Builder: Mitsubishi Jukogyo Hikoshima Zosensho
   Owner: Nishinihon Kisen KK  
   Call Sign: JICG  
   Official Number: C1839  
   Laid Down: 23.10.1934
   Launched: 10.01.1935
   Completed (330 GRT): 02.04.1935
   Requisitioned: 01.03.1939
    Service:  
      ? ?
   Fate: ?
   Removed from Navy List: 03.05.1947
   Commanding Officers:  
      Lt Nonaka Tsuyoshi野中 強01.11.43\09.44
      Lt Arai Yuzo荒井勇三09.44\03.45
      Lt Kamata Motoo鎌田元夫03.45\
Koei Maru    高榮丸    イエコ
   Builder: Mitsubishi Zosen Nagasaki Zosensho
   Owner: Takachiho Shosen KK  
   Call Sign: JORI  
   Official Number: 38564  
   Laid Down: 11.02.1933
   Launched: 03.09.1933
   Completed (6,774 GRT): 10.01.1934
   Requisitioned: 15.08.41\
    Service:  
      4th Base Force, 4th Fleet 12.41\20.01.44
      18th Escort Squadron, General Escort 20.01.44\10.04.45
      7th Fleet 05.06.45\10.06.45
      General Escort Command 10.07.45\9.45
   Fate: ?
   Removed from Navy List: 01.12.1945
   Commanding Officers:  
      Capt Suzuki Kozo (36)鈴木幸三15.08.41\17.01.43
      Capt [?] 17.01.43\28.06.44
      Capt Takahashi Eikichi高橋栄吉28.06.44\01.05.45
      Capt Nakagaki Yoshiyuki (50)中垣義幸01.05.45\26.09.45
      Capt Sato Shigekichi (51)佐藤重吉26.09.45\
Koryu Maru    光隆丸
   Builder: Kawaminami Kogyo Urasaki Zosensho
   Owner: Daiko Shosen KK  
   Call Sign: JRST  
   Official Number: 52949  
   Laid Down  
   Launched: 22.06.1944
   Completed (873 GRT): 16.07.1944
   Requisitioned: 05.07.1945
    Service:  
      ? ?
   Fate: Sunk 28.07.45
   Removed from Navy List: 03.05.1947
   Commanding Officers:  
      Resv Lt Kawashima Jun川島 淳05.07.45\28.07.45
Minsei Maru    民星丸
   Builder: Nakata Zosensho
   Owner: Toko Shoji KK  
   Call Sign: JBAP  
   Official Number: 47594  
   Laid Down  
   Launched: 29.11.1940
   Completed (378 GRT): 07.03.1941
   Requisitioned: 20.09.1941
    Service:  
      ? ?
   Fate: Sunk 10.06.44
   Removed from Navy List: 10.06.1944
   Commanding Officers:  
      Resv Lt Tsutsumi Yukio堤 幸男15.09.41\10.06.44
Nichiyu Maru    日祐丸
   Builder: Kawaminami Kogyo Koyagijima Zosensho
   Owner: Nissan Kisen KK  
   Call Sign: JUVM  
   Official Number:    45497  
   Laid Down: 11.11.1937
   Launched: 24.08.1938
   Completed (6,817 GRT): 28.12.1938
   Requisitioned: 16.12.1940
   Service:  
      Maizuru ND 16.12.1940
      2nd Base Force, 3rd Fleet 21.01.42\10.03.42
      3rd Southern Exp Fleet 10.03.42\10.04.42
      3rd South, SW Area Fleet 10.04.42\01.08.42
      Reclassified as Transport 20.07.1942
      Supply 01.08.42\
   Fate: Sunk 13.07.44
   Removed from Navy List: 10.08.1944
   Commanding Officers:  
    Capt Goto [?]後藤 鐡五郎16.12.40\
    Capt Inohara Kunichi (33)猪原薫一15.02.42\29.09.42
Shinko Maru    新興丸    ウコンシ
   Builder: Yokohama Dock
   Owner: Shinko Shosen KK  
   Call Sign: JYNJ  
   Official Number: 40512  
   Laid Down: 26.07.1934
   Launched: 05.03.1935
   Completed (6,479 GRT): 03.06.1935
   Requisitioned: 16.12.1940
   Service:  
      Maizuru ND 03.12.40\14.01.41
      2nd Base Force, 3rd Fleet 14.01.41\10.03.42
      Base Force 23.Southwest Area Fleet 10.03.42\1.2\.44
      18th Escort Sqd, General Escort 20.01.44\10.04.44
      Ministry of Supply 10.04.44\18.10.44
Fate:  Sunk 18.10.44 by US aircraft in Solamague Bay, Luzon (18°35'N, 121°40'E). ? dead; 0 saved.
   Removed from Navy List: 10.12.1944
   Commanding Officers:  
      Capt Sakai Suminobu (37)境 澄信16.12.40\01.09.41
      Capt Yamamoto Kyosuke (34)山本強介01.09.41\01.10.41
      Capt [?] 01.10.41\03.12.42
      Capt Kamiyama Tokuhei (38)神山徳平03.12.42\25.07.44
      Capt Oishi Kenshiro (42)大石堅志郎25.07.44\05.08.44
      Capt Kato Buntaro (43)加藤文太郎05.08.44\16.09.44
      *Capt Yamataka Matsujiro (44)山高松次郎16.09.44\18.10.44
Takachiho Maru    高千穂丸
   Builder: Harada Zosen
   Owner: Nambo Kisen KK  
   Call Sign: JWAL  
   Official Number: 43364  
   Laid Down: 01.01.1937
   Launched: 10.04.1937
   Completed (342 GRT): 01.05.1937
   Requisitioned: 20.09.1941
   Service:  
      ? ?
   Fate: ?
   Removed from Navy List: 03.05.1947
   Commanding Officers:  
      Resv Lt(jg) Sonoda Mitsugu園田 貢22.07.42\05.01.43
      Resv Lt(jg) Okuhara Rintaro奥平 麟太郎15.01.43\6.44
      Resv Lt Yamamoto Ryouo山本了夫06.44\10.44
      Lt Hashimoto Masahiro橋本正煕10.44\04.45
      Resv Lt Matsumoto Nobuto松本信人04.45\
Tatsuharu Maru    辰春丸    ルハツタ
   Builder: Mitsubishi Jukogyo Kobe Zosensho
   Owner:    Tatsuma Kisen KK  
   Call Sign: JXNM  
   Official Number: 45329  
   Laid Down: 25.01.1938
   Launched: 18.01.1939
   Completed (6,345 GRT): 15.04.1939
   Requisitioned: 05.09.1941
   Service:  
      17th Squadron, 3rd Fleet 20.09.41\10.03.42
      2nd Base Force, 3rd Fleet 10.03.42\25.08.42
      Reclassified as Tranport 25.08.1942
      Maizuru ND 25.08.42\30.06.45
   Fate: Surrendered, scrapped 1970
   Removed from Navy List: 30.06.1945
   Commanding Officers:  
      Capt Hirano Takeo (34)平野武雄05.09.41\20.09.41
      Capt Higuchi Tutatsu (38)樋口通達20.09.41\
Tatsumiya Maru    辰宮丸    ヤミツタ
   Builder: Mitsubishi Jukogyo Kobe Zosensho
   Owner: Tatsuma Kisen KK  
   Call Sign: JQZM  
   Official Number: 44853  
   Laid Down: 25.01.1938
   Launched: 14.09.1938
   Completed (6,343 GRT): 21.11.1938
   Requisitioned 05.09.41  
    Service:  
      17th Squadron, 3rd Fleet 05.09.41\03.01.42
      3rd Fleet 03.01.42\10.03.42
      21st Base Force, 2nd Southern Exp Fleet 10.03.42\25.08.42
      Reclassified as Transport 25.08.1942
      Maizuru ND 25.08.42\30.06.45
      Under repair 15.08.43\28.10.44
   Fate: Surrendered, scrapped 1968
   Removed from Navy List: 30.06.1945
   Commanding Officers:  
      Capt Hirano Takeo (34)平野武雄05.09.41\
Tenyo Maru    天洋丸    ウヨンテ
   Builder: Mitsubishi Jukogyo Nagasaki Zosensho
   Owner: Toyo Kisen KK  
   Call Sign: JWHJ  
   Official Number: 40121  
   Laid Down: 03.07.1934
   Launched: 22.01.1935
   Completed (6,843 GRT): 28.03.1935
   Requisitioned: 20.09.1941
    Service:  
      ? ?
   Fate: Sunk 11.03.42
   Removed from Navy List: 01.04.1942
   Commanding Officers:  
    Capt Ishido Yuzo (36)石戸勇三20.09.41\11.03.42
Urara Maru    うらら丸
   Builder: Mitsubishi Jukogyo Kobe Zosensho
   Owner: Awakoku Kisen KK  
   Call Sign: JFCH  
   Official Number: 39753  
   Laid Down: 08.07.1934
   Launched: 24.10.1934
   Completed (407 GRT): 30.03.1935
   Requisitioned: 01.12.1941
   Service:  
      ? ?
   Fate: Sunk 30.01.44
   Removed from Navy List: 31.03.1944
   Commanding Officers:  
      Resv Lt Kanaisawa Saburo金井塚三郎29.01.42\01.06.42
      Resv Lt Kayama Tatsuo香山辰雄01.06.42\25.07.42
      Resv Lt Minobe Munshige美濃部 宗重25.07.42\11.42
      Lt(jg) Nakano Fusao仲野房男11.42\29.06.43
      Resv Lt Sawatari Noboru猿渡 登29.06.43\31.07.43
      Lt(jg) Ozaki Shuhei尾崎修平31.07.43\30.01.44
 

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