Saito Sensei was born in Northern Japan and trained in the Japan Karate Association (JKA) system with his sensei, Hiroshi Shoji. When Saito Sensei left Japan in 1970 he initially taught in France, South America and the Caribbean. In Guadeloupe, French West Indies he was chief instructor of the Budokan French Federation.
In 1973 Saito Sensei came to South Florida where until 1992 he was an instructor of the International Shotokan Karate Federation (ISKF), South Atlantic branch.
In 1993 he founded Japan Karate-Do International (JKI) with affiliated members in Eastern and Western Europe, Asia, the Caribbean, South America and North America. Currently Saito Sensei is also Executive Director of Shotokan Karate Do of United Nations (SKDUN) and Shotokan Chief Director of the World Karate Martial Arts Organization (WKMO).