Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4742288 | Control system for AC motor/generator of secondary AC excitation type | Osamu Sugimoto, Tadaatsu Kato, Hidenori Sawa, Akio Ito, Hiroshi Sugisaka +1 more | 1988-05-03 |
| 4694189 | Control system for variable speed hydraulic turbine generator apparatus | Eiji Haraguchi, Hiroto Nakagawa, Akira Bando, Takao Kuwahara, Kenichi Ono | 1987-09-15 |