Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4483216 | Planetary-roller transmission with elastic roller or ring | Hisayoshi Takahashi | 1984-11-20 |
| 4302988 | Planetary-roller transmission with deformable clutching element | Hisayoshi Takahashi, Hiroshi Satoh, Itsuro Sakai | 1981-12-01 |