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
Ryu Cha-dal Ryu Geum-Whan (류금환).There are some stories that tell he was one of or a son of one of the people moving into Koryo after the fall of the kingdom of Balhae (another Korean kingdom) in the north to Khitan (거란) invaders from the Kingdom of Liao (요). Others say he was a descendent of a noble of Shilla (신라) who ran away after a failed rebellion. Stories that Ryu Cha-dal had another son by the sur-name of Cha has been recently proven false. Ryu Cha-dal Ryu Cha-dal (류차달) is the founder of the Korean Munhwa Ryu clan. He was born