Professor of Law, Waseda University (1963 -); Visiting Professor, Univ. of Washington (1968, 1969); Visiting Scholar, Loyola Law School (1987); Professor of Intellectual Property, Santa Clara Law School Tokyo Summer Program (1986-1992); member of the Copyright Council of the Japanese government
President, Copyright Law Association of Japan; Member of the Board, Law and Computer Society, Japan; Member of the Board, Japan Industrial Property Association; Member, ATRIP; Member, Japanese Group of AIPPI; Member, International Law Association; Chairman, Intellectual Property Section of LAWASIA
Japan Commercial Arbitration Assoc.; Regional Arbitration Centre, Kuala Lumpur; Regional Centre for International Commercial Arbitration at Cairo; AAA
Party-appointed arbitrator, dispute between Japanese exporter and Singapore buyer (1977); Party-appointed arbitrator, dispute between Japanese company and American company, re: technology transfer in the field of electronics (1983); Neutral arbitrator, dispute between trading company in Cyprus and Japanese manufacturer of electric equipment (1985)
Intellectual Property Law of Japan (1980); Japan, in Int’l Handbook of Commercial Arbitration (1984); Intellectual Property Protection and Management (Tokyo 1992); author of numerous other books and articles in both English and Japanese.