Denomination: Roman Catholic
1 child, Yoshitaka. Master of Science in Electronics, Keio University, Japan, 1967. Master of Science in Management, Massachusetts Institute of Technology, 1976. Doctor of Philosophy., Keio University, Japan, 1985.
Deputy general manager Sony Corporation, Tokyo, 1976-1984. President, chairman Dixy Corporation, Yokohama, Japan, since 1984. Patentee new plasma display panel.