Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6690137 | Sensorless control system for synchronous motor | Yoshitaka Iwaji, Tsunehiro Endo, Kiyoshi Sakamoto | 2004-02-10 |
| 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 |
| 6628099 | Synchronous motor driving system and sensorless control method for a synchronous motor | Yoshitaka Iwaji, Tsunehiro Endo, Kiyoshi Sakamoto | 2003-09-30 |
| 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 |
| 6603280 | Motor controller | Yasuo Notohara, Yukio Kawabata, Kazuo Tahara, Makoto Ishii | 2003-08-05 |
| 6479956 | Brushless motor control device and equipment using the control device | Yukio Kawabata, Yasuo Notohara, Kazuo Tahara, Makoto Ishii, Hiroshi Shinozaki | 2002-11-12 |
| 6198240 | Motor controller | Yasuo Notohara, Yukio Kawabata, Kazuo Tahara, Makoto Ishii | 2001-03-06 |
| 6075328 | PWM/PAM control mode switching type motor control apparatus, and motor drive and air-conditioner using the same | Yasuo Notohara, Yukio Kawabata, Makoto Ishii, Hiroshi Shinozaki, Kouji Katou | 2000-06-13 |
| 5929591 | Air conditioner | Kouji Katou, Toru Inoue, Makoto Ishii, Yasuo Notohara, Yukio Kawabata +4 more | 1999-07-27 |
| 5351182 | Level shift circuit and inverter apparatus using the same | Hideki Miyazaki, Tsunehiro Endo, Kouzou Watanabe, Koichi Suda | 1994-09-27 |