Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6194864 | Control device for induction motor | Yoshihiko Kinpara, Masato Koyama, Hisao Sakurai | 2001-02-27 |
| 6088246 | Method of and device for controlling pulse width modulation inverter | Masato Koyama | 2000-07-11 |