05/02/1939-15/11/1939=
Sub.Ron.2; 2ndFleet;

15/11/1939-11/01/1941=
Sub.Ron.1; 1stFleet;

26/01/1942-07/05/1942=
Car.Div.4; 1st.Air Fleet;

15/01/1939-22/12/1941=Submarine Tender;
11/01/1941-26/01/1942=Conversion to CV;
26/01/1942-20/05/1942=Aircraft Carrier;

CEO:Cpt.Otsuka Miki [39]=
07/10/1935-01/12/1936;
CEO:Cpt:Higuchi Ko [40]=
01/12/1936-15/06/1937;
CO:Cpt:Kakimoto Gonichiro [41]=
15/06/1937-01/12/1937;
CO:Cpt.Hashimoto Aiji [39]=
01/12/1937-15/12/1938;
CO:Cpt:Fukuzawa Tsunekichi [41]=
15/12/1938-15/11/1939;
CO:Cpt:Ito Jotaro [42]=
15/11/1939-15/11/1940;
CO:Cpt.Jojima Takatsuga [40]=
15/11/1940-08/08/1941;
CO:Cpt:Obata Chozaemon [43]=
08/08/1941-01/10/1941;
CO:Cpt:Izawa Ishinosuke [43]=
01/10/1941-07/05/1942;

22/12/1941Renamed Shoho;

07/05/1942 Sunk=
s.Woodlark Is.,Coral Sea;10*29'S;152*55'E;
Torpedoes,Bombs; US.A/C; CV Yorktown; 203Survivors;631KIA;
20/05/1942= Removed from Navy List;