The Type 5 Ho-Ru was made from a Type 95 Light Tank chassis with a 47 mm antitank gun mounted.
The Type 4 Ho-Ro was built on a modified Type 97 Medium Tank chassis. A 150 mm Type 38 howitzer was mounted.
The Ho-Ri was built on a Type 5 chassis. It had a 105 mm gun as its main armament and a 37 mm gun in the hull.
A single prototype of the Type 5 was built in June 1945.
Two Type 4 Ho-Ros were sent to the Philippines and were lost.