within the Kodokan [3]  . Here he practiced among others  Katori Shinto-ryu . In 1930, he was sent by Jigoro Kano to study aikijujutsu with  Morihei Ueshiba [4]  He was the uchideschi of Morihei Ueshiba at the Kobukan dojo for one year before opening his own dojo in Shizuoka City in 1931.