- Doctor of Medicine Niigata Medical College, 1947. Contributor articles to professional journals. Editor Journal Hand Surgery, since 1976.
Member Japanese Orthopedic Association (president 1986-1987), International Society Orthopedic Surgery and Traumatology, Japanese Society Surgery of the Hand, American Society Surgery of the Hand (honorary), American Association Surgery of Trauma (honorary), Caribbean Society Surgery of Hand (honorary), German Speaking Society Hand Surgery (correspondent), British Society Hand Surgery (honorary), International Federation Societies Surgery of the Hand (president 1976-1977, chairman 3d Congress 1986). Corresponding editor Journal Hand Surgery, since 1976.