JKF Renbukai organization established the All Japan Karatedo Federation (JKF) and made Shūdōkan its overall headquarters. The JKF appointed Choko Sai as chairman, Yasuhiro Konishi (Shindo Jinen-ryu) and Hiroshi Kinjo (Kanbukan) as vice-chairmen, Kanken Toyama and Hiroyasu Tamae (Otou-ryu) as Shihan, and Hironori Otsuka (Wado-ryu), Tatsuo Yamada (Nippon Kenpo Karate), Shinkin Gima (Shotokan-ryu), Isamu Tamotsu (Shorinji-ryu) and Tsuyoshi Chitose (Chito-ryu) as officers of JKF. In 1964, JKF made a new united league of the non-contact karate world with JKA (Shotokan), Wado-ryu , Goju-ryu and Shito-ryu. Old JKF handed over the name of JKF (Japan Karate Federation) to the new league and changed
Ryu clan of Munhwa century B.C.-middle 7th century A.D.), had been merged into Koryo. Through the life of Ryu Cha Dal, the novel implants in the minds of readers the truth that anyone can be remembered by the history if he or she made sincere dedication to the unity of fellow countrymen. The tomb of Ryu Cha Dal and Sindo Monument were registered as state preservation relics Nos. 1777 and 1778, thanks to the culture conservation policy of the DPRK and excellently remodeled in August 2013. Source; https://kcnawatch.co/newstream/1535721460-912419132/historical-novel-published/ Ryu clan of Munhwa The Munhwa Ryu (or spelled Munhwa Yu) of Korea (Korean: 문화 류씨)