Issued Patents 2003
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6657412 | Pulse width modulation method, pulse width modulator and power converter | Seiji Ishida, Keijiro Sakai, Toshiaki Okuyama, Hiroshi Fujii, Hiroyuki Tomita +2 more | 2003-12-02 |
| 6650081 | Synchronous motor driving system | Yoshitaka Iwaji, Tsunehiro Endo, Kiyoshi Sakamoto | 2003-11-18 |
| 6642681 | Starting control method of and control apparatus for synchronous motor, and air conditioner, refrigerator, washing machine and vacuum cleaner each provided with the control apparatus | Yukio Kawabata, Tsunehiro Endo, Makoto Ishii, Toru Inoue | 2003-11-04 |
| 6626002 | Controller for PWM/PAM motor, air conditioner, and method of motor control | Yasuo Notohara, Yukio Kawabata, Kazuo Tahara, Makoto Ishii, Hiroshi Shinozaki | 2003-09-30 |
| 6628099 | Synchronous motor driving system and sensorless control method for a synchronous motor | Yoshitaka Iwaji, Tsunehiro Endo, Kiyoshi Sakamoto | 2003-09-30 |
| 6603280 | Motor controller | Yasuo Notohara, Yukio Kawabata, Kazuo Tahara, Makoto Ishii | 2003-08-05 |