Anti-aircraft capability was also as per the "Mutsuki"-Class, with two Type 92 7.7 mm anti-aircraft machine guns located in front of the second stack. These were replaced by Type 93 13 mm AA Guns before the start of the war. Following the start of then Pacific War, a number of units received an additional pair of Type 93 guns mounted in front of the bridge, which were later changed to Type 96 25mm AA Guns. In late 1943 to early 1944, one of the aft guns was replaced with two triple Type 96 guns, and an additional raised gun platform with another two triple Type 96 guns was added between the two aft torpedo launchers, In late 1944, the remaining units received more Type 96 guns as single mounts on the forecastle and stern. received a Type 22 radar in November 1943, and the remaining seven units were so fitted in 1944. The few ships remaining in late 1944 also received the Type 13 radar.