The Type 1 was an early experimental design that led to the first production Japanese amphibious tank known as the Type 2 Ka-Mi, which was based on the Type 95 Ha-Go light tank chassis. Production began in 1942 with only 182 to 184 units were built. Type 2 Ka-Mi was first used in combat on Guadalcanal in late 1942. Later they were encountered by US forces in fighting on the Marshall Islands, the Mariana Islands and on the Philippine island of Leyte in late 1944.