IJN Submarine HA-104:
Tabular Record of Movement

© 2006-2015 Bob Hackett & Sander Kingsepp

Revision 1

1 July 1944:
Tanagawa. Laid down at Kawasaki's Senshu Works as a Sensuikan Yu Sho (Small Supply Submarine) No. 4604, (SS) Type.

30 September 1944:
Launched and numbered HA-104

14 October 1944:
Lt Koga Jinsaku (69)(former torpedo officer of AKEBONO) is appointed the Chief Equipping Officer.

1 December 1944:
Kobe. Completed and commissioned in the IJN. Assigned to SubRon 11. Lt Koga Jinsaku is the CO.

Mid-January 1945:
Inland Sea. Works up in the Iyo Nada with HA-101 and HA-102.

5 February 1945:
Reassigned to Rear Admiral Owada Noboru's SubRon 7.

Mid-February 1945:
Arrives at Yokosuka for exercises.

20 Mar 1945:
SubRon 7 is disbanded. Reassigned to Rear Admiral Imaizumi Yoshijiro's (former CO of SANTOS MARU) SubDiv 16.

Late April 1945:
HA-104 starts preparations for a supply run to Minami-Torishima (Marcus) Island.

8 May 1945:
The garrison of Minami-Torishima sends a warning to Kure concerning recent Consolidated B-24 "Liberator” attacks on the island and about USN submarines patrolling in the area.

10 May 1945:
Departs Yokosuka on a supply run to Minami-Torishima, carrying 31-tons of food and 0.5-tons of other cargo.

13 May 1945:
Arrives at Minami-Torishima, unloads her cargo, embarks mail and the ashes of 90 IJA soldiers, then departs .

1 June 1945:
Returns to Yokosuka. Enroute, air escort is provided by planes from the Tateyama NAG and ASW escort is provided by subchasers from the Yokosuka Guard Unit. Starts a rebuild to enable her to carry aviation fuel.

26 June 1945:
Departs Yokosuka on a supply run to Minami-Torishima.

July 1945:
Arrives at Minami-Torishima, unloads her cargo, then returns to Yokosuka.

14 July 1945:
Lt Kuroda Masaru (71)(former communications officer of I-8) is appointed CO.

2 September 1945:
Yokosuka. HA-104 is surrendered to the Allies.

15 September 1945:
Removed from the Navy List.

October 1945:
Scuttled off Shimizu.

Authors' Notes:
Special thanks for help in preparing this TROM go to Dr. Higuchi Tatsuhiro of Japan.

– Bob Hackett and Sander Kingsepp.

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