In 1922, when Gichin Funakoshi came to Tokyo to attend the first physical education exposition and began teaching karate, there has been attempt to turn kumite into a sport in mainland Japan.
According to early high school colleagues Hironori Otsuka (Wadō-ryū) and Yasuhiro Konishi (Shindō jinen-ryū), while teaching Karate, Funakoshi taught 15 Kata and didn't appear to know much about Kumite.
[6] After the war, entities such as Kanbukan, Renshinkan and the Yōsei-kan (later Senkarakai), which would advocate "Bogu Karate" format, began to emerge.
Formed as a unified organization of karate that transcends schools, the headquartered Shudokan of Kanken Toyama.
These included Vice Chairman Yasuhiro Konishi (Shindō jinen-ryū), Kinjo Hiroshi (Kanbukan), Advisor Hironori Otsuka (Wado-ryu), Tatsuo Yamada (Nippon Kempo), Gima Makoto (Shotokan), Director Isamu Ho (Shorinji-Ryu Renshinkan) etc.
Following the foundation of organization, it hold the 5th Tournament of "All Japan Karatedo Federation Championship" on same month at Korakuen Gymnasium.