Issued Patents 2020
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10865828 | Oil-impregnated sintered bearing | Shinichi Takezoe | 2020-12-15 |
| 10843264 | Molding die and molding method | Tsuneo Maruyama, Hideo Sakai | 2020-11-24 |
| 10731704 | Oil-impregnated sintered bearing and production method therefor | Hideo Sakai, Osamu Sakai | 2020-08-04 |