Shokichi Natsui (夏井 昇吉, Natsui Shōkichi; 10 October 1925 – 13 September 2006) was a Japanese judoka from the Akita…Shokichi Natsui (夏井 昇吉, Natsui Shōkichi; 10 October 1925 – 13 September 2006) was a Japanese judoka from the Akita Prefecture. He became the first world champion in judo, winning the title at the 1956 World Judo Championships in Tokyo, by beating Yoshihiko Yoshimatsu in the final. As there were no weight classes in the world championships until 1965, Natsui was the only champion in 1956.
Kenji Tomiki (富木 謙治, Tomiki Kenji; March 15, 1900 – December 25, 1979) was a Japanese martial artist who specialized in…Kenji Tomiki (富木 謙治, Tomiki Kenji; March 15, 1900 – December 25, 1979) was a Japanese martial artist who specialized in aikido and judo family of martial arts. He was a pedagogue of martial arts theory (武道論, Budo-ron). He is the founder of Japan Aikido Association and the competitive aikido (aikido kyogi) style. Tomiki was a professor at Kenkoku University in Manchuria and later at the Faculty of Education at Waseda University. Tomiki is credited in devising and introducing new forms of Randori practice in Aikido. He founded his own Aikido system, which has many differences from other Aikido styles, mainly in randori training, and is referred by several names including Tomiki Aikido, Shodokan Aikido and Sport Aikido.