Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8421395 | Synchronous motor and control method of synchronous motor | Daisuke Maeda, Kenji Sakurai, Hiroyuki Hasegawa, Hidefumi Shirahama | 2013-04-16 |
| 8189641 | Semiconductor device | Toshiyuki Fukuda, Isao Hayami | 2012-05-29 |
| 8035330 | Apparatus and method for driving synchronous motor | Daisuke Maeda, Tsunehiro Endo, Hidefumi Shirahama, Kenji Sakurai, Hiroyuki Hasegawa | 2011-10-11 |
| 7859210 | Semiconductor device for driving motor, three-phase motor and motor driving apparatus with the semiconductor device and fan motor | Kenji Sakurai, Hiroyuki Hasegawa, Tomoyuki Utsumi, Shoichi Ohozeki, Daisuke Maeda | 2010-12-28 |
| 7839113 | Apparatus and method for driving synchronous motor | Daisuke Maeda, Tsunehiro Endo, Hidefumi Shirahama, Kenji Sakurai, Hiroyuki Hasegawa | 2010-11-23 |