Ikuhiro Kubota was born on June 19, 1943, in Kashihara, Nara, Japan. He is 8th Dan Aikido Aikikai and one of the biggest masters of the time in Japan. His main teacher and aikido-friend is Hiroshi Tada.
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.
Hiroshi Isoyama was born in 1937. In June 1949 he joined the Iwama Dojo to learn Aikido under the Morihei Ueshiba. Training under O-Sensei continued for around 20 years of his life and is the main part of Hiroshi Isoyama’s knowledge about the martial arts philosophy which he still transmits to the world.
Mitsunari Kanai (April 15, 1939 – March 28, 2004) was one of the last live-in students trained by the O-Sensei. 8 Dan Aikido Aikikai Shihan, Iaido teacher and a founder of the New England Aikikai.