Doctor of Engineering, Kyusyu Institute of Technology, 1975.
Research engineer Mitsubishi Heavy Industries, Ltd., Takasago, Japan, 1975—1984, chief reserch engineer, 1984—1990, senior research engineer, 1990—1998, senior research engineer manager, 1990—2002, chief engineer, since 2002. Visiting scholar University Cincinnati, 1982—1983.
Fellow: Japan Society Mechanical Engineers.
Married Akiko Muneyuki, January 21, 1980.