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Wooden Corvette - Kaiten class - Copper plated Corvette - Kaiten class
- Armoured Corvette - Kaiten class
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Wooden Corvette - Kanko Maru class - Copper plated Corvette - Kanko Maru class
- Armoured Corvette - Kanko Maru class
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Wooden Corvette - Kanrin Maru class - Copper plated Corvette - Kanrin Maru class
- Armoured Corvette - Kanrin Maru class
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Wooden Corvette - Kasuga class - Copper-plated Corvette - Kasuga class
- Armoured Corvette - Kasuga class