Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7140800 | Joint structure for power transmitting member and method for producing the same | Kenichi Sugiyama | 2006-11-28 |
| 7074129 | Coupling member of power transmission apparatus | Kenichi Sugiyama, Hirofumi Somekawa | 2006-07-11 |
| 7062835 | Joint structure for power transmitting member and method for producing the same | Kenichi Sugiyama | 2006-06-20 |