- 1983 - 1996 Hitachi, Ltd., Mechanical Engineering Research Laboratory
- 1983 - 1996 Mechanical Engineering Research Lab., Hitachi, Ltd., Senior Researcher
- 1980 - 1981 Hitachi, Ltd., Mechanical Engineering Research Laboratory
- 1980 - 1981 Mechanical Engineering Research Lab., Hitachi, Ltd., Senior Researcher
- 1968 - 1980 Hitachi, Ltd., Mechanical Engineering Research Laboratory
- 1968 - 1980 Mechanical Engineering Research Lab., Hitachi, Ltd., Researcher
Show all