Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7508109 | Commutator motor | Tomoyoshi Yokota, Shinichi Sakamoto, Chikai Yoshimizu, Katsuhiro Oomori, Kenichi Kato | 2009-03-24 |
| 7368843 | Commutator motor | Tomoyoshi Yokota, Shinichi Sakamoto, Chikai Yoshimizu, Katsuhiro Oomori, Kenichi Kato | 2008-05-06 |
| 7064467 | Commutator motor | Tomoyoshi Yokota, Shinichi Sakamoto, Chikai Yoshimizu, Katsuhiro Oomori, Kenichi Kato | 2006-06-20 |