Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5615956 | Roller bearing | Fumio Oba, Hitoshi Murakami, Tomoaki Terada | 1997-04-01 |
| 4893387 | Roller elements for roller bearing | Yoshinobu Akamatsu, Morikatu Kotani, Toshihide Goto, Kenji Hibi | 1990-01-16 |