Changes
→Class classification
| style="text-align:center;" |''Kōsakukan''
| style="text-align:center;" |''Kōsakukan''
| style="text-align:center;" |Repair Ship
| style="text-align:center;" |Repair Ship
|-
| style="text-align:center;" |[[Auxiliary Ships|AS]]
| style="text-align:center;" |潜母艦
| style="text-align:center;" |潜水母艦
| style="text-align:center;" |''Sensui bokan''
| style="text-align:center;" |Submarine Tender
|}
|}