Koichi Tohei

Koichi Tohei (20 January 1920 – 19 May 2011) was a first one to be promoted to a 10 Dan by the Morihei Ueshiba ever. He taught people like Hiroshi Tada, Seigo Yamaguchi, Mitsugi Saotome, Sadateru Arikawa, Kazuo Chiba, Yoshimitsu Yamada, Steven Seagal and many others.

Hitohiro Saito

Hitohiro Saito was born on February 12, 1957, in Iwama City, Japan. He is an Aikido instructor and a founder of the Iwama Shin-Shin Aiki Shuren-kai, a traditional Iwama style Aikido organization with about 60 Dojos around the world.