Patrick Cassidy is a 6th dan Aikikai Aikido instructor. He is a founder and a Dojo-Cho at Aikido Montreux in Switzerland.
Masatomi Ikeda was born in Tokyo, Japan on April 8, 1940. He is a Japanese Aikido teacher with a rank of 7th Dan Aikikai and a status of Shihan. Through the course of life, he also achieved the 4th Dan in Judo and had success in Sumo.