The Type 1 Ho-Ni I was produced in small quantities between 1941 and November 1943, until superseded by the Type 2 Ho-Ni II with its Type 91 105mm howitzer.
The Type 1 Ho-Ni I was designed to operate as self-propelled artillery in the armored divisions. Production in small quantities was made between 1941 and November 1943, until superseded by the Type 2 Ho-Ni II with its Type 91 105mm howitzer.