Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5257174 | Engine-driven power generating system with over-current protection and stator teeth with grooves on a top surface | Kazuyuki Ogiwara, Keisuke Okada | 1993-10-26 |
| 4851758 | Brushless generator | Masahiro Osada, Toshihiko Tanuma, Takashi Yoshida | 1989-07-25 |