Kenkojuku is a style of Shotokan karate previous to the establishment of the Japan Karate Association (JKA) style. It was founded by Tomosaburo Okano. Kenkojuku karate is similar to the teachings of Gichin Funakoshi and modifications made by Funakoshi´s son Yoshitaka Funakoshi. JKA Shotokan differs slightly in that it was Masatoshi Nakayama's version of Shotokan. Okano's/Yoshitaka's Kenkojuku karate and JKA karate are becoming more similar compared to other variants of Shotokan karate such as Shigeru Egami's Shotokai, Hirokazu Kanazawa's Shotokan Karate International or SKI.