Koretoshi Maruyama (born 5 October 1936) is a Japaneseaikido instructor and founder of
Aikido Yuishinkai
Aikido Yuishinkai (Japanese language, Japanese: ) is a style of aikido founded in 1996 by former Aikikai instructor and Ki no Kenkyukai president and chief instructor Koretoshi Maruyama. Aikido Yuishinkai has many dojos operating in Japan, Austr ...
Koretoshi Maruyama first began studying aikido at the Aikikai Hombu Dojo in 1956 as well as training at the
Keio University
, mottoeng = The pen is mightier than the sword
, type = Private research coeducational higher education institution
, established = 1858
, founder = Yukichi Fukuzawa
, endowmen ...
Aikido Club. After he graduated from Keio University, he continued his training in aikido, while working in the family business. In 1967 he delegated his responsibilities in the family business so that he could become a full time professional aikido instructor and he became an uchi deshi of Aikido Founder Morihei Ueshiba who awarded him the rank of 6th Dan in aikido.Koretoshi Maruyama by Clement Choo, April 12th, 2010
Ki no Kenkyukai
In 1972 Maruyama resigned from the
Aikikai
The Aikikai is the original school of Aikido. It is centered on the Aikikai#Aikikai Foundation, Aikikai Foundation in Japan, and its figurehead is the Aikikai#Doshu, Doshu (the family heir of the founder of Aikido). It is represented globally thr ...
to become the chief instructor of the
Ki No Kenkyukai The is an aikido organization founded by Koichi Tohei in 1971, while he was the chief instructor at the Aikikai Hombu Dojo. The official Japanese name of the organization is Shin Shin Toitsu Aikido Kai (心身統一合気道会), but it is also kn ...
which had been founded the previous year, at which time he was granted the rank of 8th Dan by Koichi Tohei. During his time at the Ki no Kenkyukai he had various teaching responsibilities throughout the world. In the period time he studied the healing arts of Seitei with