Professor, Civil Procedures, Legal Training and Research Institute of the Supreme Court, 1997-2000; Visiting Professor of Law, Aoyama Gakuin University Law School, 2007—; Visiting Professor of Law, Chuo University Law School, 2007—; Member, Copyright Council, Agency for Cultural Affairs. Member, Copyright Section Group, Cultural Council, Agency for Cultural Affairs, 1993—; Member, Operation Committee, Copyright Institute, Copyright Information Center, 1999—.