Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10355627 | Motor drive circuit, brushless motor drive device provided with motor drive circuit, and motor control method | Akihiro Ochiai, Yasushi Kato | 2019-07-16 |
| 8497642 | Motor devices, and motor driving system and integrated circuit device comprising the same | Tomohiro Inoue, Kenji Sugiura, Toru Tazawa, Kenichi Kishimoto | 2013-07-30 |
| 8324850 | Motor driver | Kenji Sugiura | 2012-12-04 |
| 8169170 | Motor driving device, motor device, and integrated circuit device | Kenji Sugiura | 2012-05-01 |
| 7362061 | Gate driver, motor driving device including the gate driver, and apparatus equipped with the motor driving device | Koji Kameda, Kazuaki Sakurama | 2008-04-22 |
| 7218072 | Motor driving device, motor to be driven by the same device, and apparatus using the same motor | Kenji Sugiura | 2007-05-15 |
| 7129661 | Motor driver, motor driven by the motor driver, and apparatus employing the motor | Kenji Sugiura | 2006-10-31 |
| 6812667 | Motor driver | Kenji Sugiura | 2004-11-02 |
| 6710559 | Motor driving device for motor having multi-phase coils | Toshiki Tsubouchi, Kenji Sugiura | 2004-03-23 |
| 6512343 | Motor driver | — | 2003-01-28 |
| 6271641 | Step motor driving device | Masakazu Senoh | 2001-08-07 |
| 6040673 | Motor control apparatus | Yoshinori Isomura, Kazuyuki Takada | 2000-03-21 |
| 6021058 | PWM inverter with zero dead time and initial power supply capacitor charging | Yasushi Kato, Shinichi Emura, Kazuyuki Takada, Yuji Tanaka, Kouji Takada +1 more | 2000-02-01 |
| 6020715 | Control device for a brushless motor | Toshiki Tsubouchi, Hiromitsu Nakano, Toshiaki Seima | 2000-02-01 |
| 5929576 | Protection apparatus for brushless motor | Kazuyuki Takada, Yoshihiro Fujisaki | 1999-07-27 |
| 5859770 | Output circuit for PWM inverter with no floating state | Kazuyuki Takada, Shinichi Emura | 1999-01-12 |
| 5703459 | Driver for an induction motor | Yoshihiro Fujisaki, Kazuyuki Takada | 1997-12-30 |
| 5402024 | Rotor for a permanent-magnet motor | Akihiko Watanabe, Sotomitsu Maeda, Hiroshi Dohi, Muneo Yamamoto, Yukio Honda +2 more | 1995-03-28 |
| 5300866 | Drive apparatus and speed control apparatus for brushless motor | Hiroyuki Oku, Hiromitsu Nakano, Hiroshi Dohi, Muneo Yamamoto | 1994-04-05 |
| 5122715 | Drive device for a brushless motor | Yoshitsugu Kimura, Hiromitsu Nakano | 1992-06-16 |
| 4983894 | Brushless motor driving system | Hiroyuki Oku, Hiromitsu Nakano | 1991-01-08 |
| 4970445 | Brushless motor drive device | Yoshitsugu Kimura, Hiromitsu Nakano | 1990-11-13 |
| 4900993 | Driving apparatus for brushless motor | Yoshitsugu Kimura, Hiromitsu Nakano | 1990-02-13 |
| 4780651 | Speed control apparatus for a motor | Hiromitsu Nakano | 1988-10-25 |