Isegahama stable
Kiyokuni Katsuo (born 20 November 1941 as Tadao Sato) is a former sumo wrestler from Ogachi, Akita, Japan. His highest rank was "ōzeki", which he held from 1969 to 1974. He won one top division "yūshō" or tournament championship and was a runner-up in five other tournaments. He also earned seven special prizes and seven gold stars. After his retirement he was the head coach of Isegahama stable.