Bachelor of Laws, Kwansei Gakuin University, Japan, 1967. Master of Laws, Kwansei Gakuin University, Japan, 1969. Doctor of Laws, Kwansei Gakuin University, Japan, 2006.
Assistant fculty general education Kinki University, Higashi-Osaka City, Japan, 1969—1975, lecturer Japan, 1975—1978, associate professor Japan, 1978—1986, professor Japan, 1986—1992. Professor faculty law Ryukoku University, Kyoto City, Japan, since 1992. Visiting researcher Maxwell School Syracuse University, New York, 1983—1984, SOAS of London University, 2000—2001.
Civil service commissioner Amagasaki City Government, Japan, 1992—2000, member appeals committee of Freedom of Information, since 2005. Lecturer in public management Graduate School Law, Kansai University, Suita City, Japan, since 2005.
Member of Japanese Political Science Association, Japanese Society for Public Administration.
Married Fujiko Shimizu Sakamoto, October 14, 1969. Children: Gaku, Yuko.