Master of Science, University Southern California, Los Angeles, 1991.
Research scientist Toshiba Corporation, Shin-Isogo-cho, Yokohama, Kanagawa, Japan, 1983-1997. Chief engineer Ushio Research Institute of Technology, Gotenba, Shizuoka, Japan, since 1997.
Member Optical Society of America, Laser Society Japan, Japan Society Applied Physics.
Son of; married Yumiko Umetani, December 14, 1985. Children: Sho, Ryu, Kyo.