Kenkojuku student of Gichin Funakoshi. He was a member of Funakoshi's karate association the Dai Nihon Karate-do Shotokai. In 1942, Okano was given permission to start a karate research club named Kenkokai Karate-bu in his hometown of Hachiōji, Tokyo. The club was started with the help of Suzuki Shinjo, Kaneko Isamu and Takagi Yoshitomo. He renamed the dojo Kenkojuku Budokan in 1948. Okano's karate was influenced by both Gichin and Gigo Funakoshi, and eventually this branch of Shotokan became known as Kenkojuku Shotokan. He retained the Shotokai lineage as well as the name Shotokan. Okano was on the panel of Masters
Kyushin Ryu written differently in Japanese to give alternate meanings. Furthermore, other schools that originated from, or have a link to the Japanese island of Kyūshū have been known to use Kyushin in the name. The name "Kyushin (Ichi) Ryu" may be broken into syllables: Note: the no-longer used combination of "Ichi-Ryu" referred to the aristocratic class of society who practiced Kyushin Ryu Jujutsu, rather than implying the school was more "superior" than any other. The older members of Japanese aristocracy were attracted to the ease of application of the lethal Kyushin Ryu techniques. Many "shōguns" realised that Atemi waza would provide