Issued Patents All Time
Showing 26–36 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4688772 | Apparatus for sealing the skirt of a converter waste gas recovery system | Toyo-o Murata, Yukinori Shigeyama, Mazumi Nishikawa | 1987-08-25 |
| 4675799 | Control system for power converter | Masato Suzuki, Shigetoshi Okamatsu, Kingo Abe | 1987-06-23 |
| 4651976 | Method for operating a converter used for steel refining | Keizi Arima, Yujiro Ueda, Toru Yoshida | 1987-03-24 |
| 4490666 | Control of induction motor using PWM inverter | Tokunosuke Tanamachi, Masahiko Ibamoto, Shigetoshi Okamatsu | 1984-12-25 |
| 4338558 | Induction motor control system and method | Shigetoshi Okamatsu, Takashi Tsuboi, Masahiko Ibamoto | 1982-07-06 |
| 4335337 | Control system for electric motor vehicle | Shigetoshi Okamatsu, Takashi Tsuboi, Masahiko Ibamoto | 1982-06-15 |
| 4327313 | Control apparatus for electric car | Takashi Tsuboi, Shigetoshi Okamatsu, Masahiko Ibamoto, Eiji Kozu | 1982-04-27 |
| 4315203 | Control system for induction motor-driven car | Masahiko Ibamoto, Noboru Oouchi, Shigetoshi Okamatsu | 1982-02-09 |
| 4284934 | Motor control apparatus with an improved thyristor chopper circuit | Michimasa Horiuchi, Masahiko Ibamoto, Hideaki Rokutan | 1981-08-18 |
| 4216420 | Braking control system selectively operable in dynamic and regenerative braking operation for electric car | Yoshiji Jinbo, Eiji Kozu | 1980-08-05 |
| 4209733 | Motor control apparatus with an improved thyristor chopper circuit | Masahiko Ibamoto, Jinichi Toyama | 1980-06-24 |