He performed partner practice with direct blows using a Bōgu (防具 protector) from Kendo.

[1][3] In 1951, after the regulations by GHQ were relaxed, Norio Nakamura changed the name to Renbukan (錬武舘) at the Wenkai Society in Higashi, Shibuya.

[4] The JKF appointed Choko Sai as chairman, Yasuhiro Konishi (Shindo Jinen-ryu) and Hiroshi Kinjo (Kanbukan) as vice-chairmen, Kanken Toyama and Hiroyasu Tamae (Otou-ryu) as Shihan, and Hironori Otsuka (Wado-ryu), Tatsuo Yamada (Nippon Kenpo Karate), Shinkin Gima (Shotokan-ryu), Isamu Tamotsu (Shorinji-ryu) and Tsuyoshi Chitose (Chito-ryu) as officers of JKF.

In 1964, JKF made a new united league of the non-contact karate world with JKA (Shotokan), Wado-ryu, Goju-ryu and Shito-ryu.

[5] Toyama defined karate as "the martial arts to assume an ethical lesson controlling the offense and defense to protect the body by the karate that established the root in hardness and softness, Yin and Yang, the principle of the breathing, and to prevent an enemy a first priority".