Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5340221 | Bearing ring with parallel flow internal structure | Yoshinobu Yasuda, Tohru Mayumi | 1994-08-23 |
| 5261159 | Method of manufacturing bearing ring | Yoshinobu Yasuda, Tohru Mayumi | 1993-11-16 |