Koryū Osaka

Koryū Osaka (1901-1985), birthname Koryū Matsumoto, was a Japanese lay Zen-teacher who taught Taizan Maezumi the Inzan koan-curriculum.

Biography
Koryū Osaka was born in 1901 as Koryū Matsumoto, but received the name Osaka when he was adopted into a family without a son. He attended Tokyo University, graduating with a major in Indian philosophy, and studied the Rinzai koan-curriculum with Muso Joko Roshi (1884-1948, aka Hannyakutsu Joko Roshi), a Shingon priest who studied the koans with another Shingon priest, Muchaku Kaiko Roshi (dates unknown); Kaiko in turn studied koans with Kazan Genku (1837-1917), a Rinzai Zen-priest of the Myoshin-ji branch of Rinzai Zen. Muso Joko established the Fuji Hannya Dojo and the Tokyo Hannya Dojo, which was led by Koryū Osaka in the 193os, before he was drafted into the military, and then again after the war. Maezumi started studying koans with Koryū Osaka in 1947.