Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5265002 | Fault protection for a multiphase bridge power converter | Akira Bando, Chikara Tanaka, Keiji Saito, Tadao Kawai, Keiichi Mitsuhashi +2 more | 1993-11-23 |
| 5160244 | Pump system operable by variable-speed control | Takao Kuwabara | 1992-11-03 |
| 5099409 | Semiconductor electric power conversion system enabling fault and/or overtemperature protection | Akira Bando, Chikara Tanaka, Keiji Saito, Tadao Kawai, Keiichi Mitsuhashi +2 more | 1992-03-24 |
| 5026256 | Variable speed pumping-up system | Takao Kuwabara, Hisao Inoue, Hiroto Nakagawa | 1991-06-25 |
| 4920277 | Control system for a variable speed hydro-power plant apparatus | Takao Kuwabara, Hiroto Nakagawa | 1990-04-24 |