Issued Patents 2003
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6657413 | Driving equipment for synchronous motors | Junnosuke Nakatsugawa, Yukio Kawabata, Masashi Kitamura, Junya Kaneda | 2003-12-02 |
| 6650081 | Synchronous motor driving system | Yoshitaka Iwaji, Kiyoshi Sakamoto, Yuhachi Takakura | 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, Makoto Ishii, Yuhachi Takakura, Toru Inoue | 2003-11-04 |
| 6639377 | Driving device for synchronous motor | Yoshitaka Iwaji, Noriaki Yamada, Hiroshi Fujii, Kiyoshi Sakamoto | 2003-10-28 |
| 6628099 | Synchronous motor driving system and sensorless control method for a synchronous motor | Yoshitaka Iwaji, Kiyoshi Sakamoto, Yuhachi Takakura | 2003-09-30 |
| 6570358 | Control apparatus for alternating-current motor | Junnosuke Nakatsugawa, Hiromi Inaba, Yoshitaka Iwaji, Yukio Kawabata, Hiroyuki Tomita +1 more | 2003-05-27 |
| 6531843 | Driving system of AC motor | Yoshitaka Iwaji, Hiroshi Fujii, Tatsuo Ando | 2003-03-11 |