Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7056030 | Pivot bearing for a swing arm of a hard disk drive device | Toshisada Koyama | 2006-06-06 |
| 6527449 | Pivot bearing | Toshisada Koyama | 2003-03-04 |
| 6010247 | Bearing device | Shinichi Mori | 2000-01-04 |