Issued Patents 2011
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8011833 | Retainer for roller bearing, and rolling bearing | Masakazu Hirata | 2011-09-06 |
| 8003203 | Resinous oil-retaining article and method for production thereof | Masakazu Hirata | 2011-08-23 |
| 7942586 | Thrust needle bearing | Kenji Tamada | 2011-05-17 |
| 7910198 | Resinous porous article and method for production thereof | Masakazu Hirata | 2011-03-22 |