Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7906933 | Apparatus and method for driving an induction motor | Daisuke Tan, Hirohisa Satomi, Koichi Miyazaki | 2011-03-15 |
| 7869232 | Electric power converter suppressing output voltage variation due to input voltage fluctuation | Koichiro Nagata, Toshiaki Okuyama, Koichi Miyazaki | 2011-01-11 |
| 7710053 | Motor driving system and motor driving method | Daisuke Tan, Hirohisa Satomi | 2010-05-04 |
| 6646896 | Controller of AC machine | Yoshitoshi Akita, Toshiaki Okuyama, Koichiro Nagata | 2003-11-11 |
| 6611125 | Method for calculating inertia moment and driver for electric motor | Koichiro Nagata, Toshiaki Okuyama, Hiroshi Fujii | 2003-08-26 |
| 4825131 | Control system for induction motor driven electric car | Yoshio Nozaki, Tadashi Takaoka | 1989-04-25 |
| 4675799 | Control system for power converter | Masato Suzuki, Hiroshi Narita, Kingo Abe | 1987-06-23 |
| 4672525 | Guard system for inverter apparatus | Akira Horie | 1987-06-09 |
| 4490666 | Control of induction motor using PWM inverter | Tokunosuke Tanamachi, Hiroshi Narita, Masahiko Ibamoto | 1984-12-25 |
| 4338558 | Induction motor control system and method | Takashi Tsuboi, Masahiko Ibamoto, Hiroshi Narita | 1982-07-06 |
| 4335337 | Control system for electric motor vehicle | Takashi Tsuboi, Masahiko Ibamoto, Hiroshi Narita | 1982-06-15 |
| 4327313 | Control apparatus for electric car | Takashi Tsuboi, Masahiko Ibamoto, Hiroshi Narita, Eiji Kozu | 1982-04-27 |
| 4315203 | Control system for induction motor-driven car | Masahiko Ibamoto, Hiroshi Narita, Noboru Oouchi | 1982-02-09 |