Gichin Funakoshi played a major role in introducing karate from Okinawa to Japan, adjusted to reduce injury and merged with approaches for athletic training. On May 27, 1949, some of his senior students, such as Isao Obata, Masatoshi Nakayama, and Hidetaka Nishiyama, formed a karate organization dedicated to research, promotion, events management, and education: the Japan Karate Association. Funakoshi, then around 80 years old, held a position equivalent to emeritus chief instructor. Nakayama designated as the chief instructor.
The JKA emerged from karate clubs at Japanese universities located in the Tokyo region. Most of these universities, however, distanced themselves from the JKA during the 1950s. Takushoku University always kept strong ties with the JKA, being the alma mater of many of the senior JKA instructors, such as Nakayama, Nishiyama, Okazaki, Asai, Kanazawa, and Enoeda, who were responsible for the JKA's consolidation during the 1960s and 1970s.
