On 2 February 1972, she was transferred to the 4th Submarine, which was newly commissioned under the 1st Submarine Group, along with Makishio, who was commissioned on the same day.
On 16 October 1973, the 4th Submarine was reorganized into the 2nd Submarine Group, which was newly formed under the Self-Defense Fleet .
Participated in Hawaii dispatch training from August 16 to November 1, 1974.
She was decommissioned on 24 March 1987. The number of dives was 1,226, the time underwater was 28,244 hours and 34 minutes, the number of surfaced hours was 8,705 hours and 23 minutes, and the total itinerary was 218,125.3 nautical miles.[3]
References
^Takao, Ishibashi (2002). 海上自衛隊全艦船 1952-2002 [All ships of the Japan Maritime Self-Defense Force 1952-2002] (in Japanese). Japan: 並木書房.
^世界の艦船 増刊第665集 海上自衛隊潜水艦史 [World Warships Special Issue No. 665: History of the Maritime Self-Defense Force Submarines] (in Japanese). Japan: 海人社. 2006.
^世界の艦船 増刊第66集 海上自衛隊全艦艇史 [World Warships Special Issue No. 66: History of All Ships of the Japan Maritime Self-Defense Force] (in Japanese). Japan: 海人社. 2004.