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
Tachikawa-ryu in 1113 by the Shingon monk Ninkan associated with Daigoji, was exiled from Koyasan to the province of Izu after getting caught on the wrong side of a political dispute. In Izu, he met an Onmyoji (Onmyodo: Taoism, Japanese esoteric cosmology) master from "Musashi no Tachikawa (Tachikawa of Musashi Province)" named Kenren (見蓮 also 兼蓮). Together the two created the school of Tachikawa-ryu. Ninkan taught mikkyo to specialist in yin-yang and Yijing divination in Musashi region, and regarded as a founder of Tachikawa-ryu, a heretical Shingon sect. Whether or not they can credited to Ninkan himself, the Taoist elements in