Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6346752 | Electromagnetic retarder with a built-in exciter | Ryuji Rouyama, Eiichi Furuse | 2002-02-12 |
| 4851758 | Brushless generator | Toshihiko Tanuma, Takashi Yoshida, Hiroshi Kobiyama | 1989-07-25 |