The Type 2 Ho-I, despite its enclosed rotating turret, was armed with a low-velocity howitzer more suitable against gun emplacements and fortifications.

[2] Although production began in 1944, it was hampered by material shortages, and by the bombing of Japan in World War II.

The welded superstructure had sloped armour and the gun mount had additional stamped armor plate.

[9] Although the Type 3 Ho-Ni III were assigned to various combat units, most were stationed within the Japanese home islands to defend against the projected Allied Invasion.

As the surrender of Japan occurred before that planned invasion, there is no record of the Type 3 Ho-Ni III being used in actual combat.