Bachelor in Engineering, University Tokyo, 1959. Doctor of Science in Physics, University Tokyo, 1967.
Researcher Center Research Laboratory Toshiba Company, Kawasaki, Japan, 1959-1969. Technical staff Bell Telephone Laboratories, Murray Hill, New Jersey, 1967-1969. Associate professor Institute for Solid State Physics, University Tokyo, 1969-1977.
Professor department physics Osaka University, Toyonaka, Japan, 1977-1998, dean faculty science, 1994-1998. Professor Nara Institute of Science and Technology, Ikoma, since 1998. Dean Graduate School Materials Science, since 2000.
Vice-chairman planning committee International Institute for Advanced Studies, 1989-1993.
Trustee Yamada Foundation, Osaka, Japan, since 1991, Simadzu Foundation, Kyoto, Japan, since 1990.
Married Etsuko Inohara, May 27, 1963. Children: Noriko Takahara, Asako Kashima.