 Tanaka remained the chief instructor of the Osaka Aikikai Dojo until his death.He was 9th dan Aikikai.Yukio Kawahara, technical director of the Canadian Aikido Federation, Higuchi Takanari, chief instructor of the Kyoto Renmei Dojo, Seiji Tomita, founder of the Ban Sen Juku school in Belgium and Ishu Ishiyama, chief instructor of the Vancouver West Aikikai Dojo figure among his students.