Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7648281 | Fluid dynamic bearing, motor and storage disk device | Rikuro Obara | 2010-01-19 |
| 5333957 | Ball bearing with seal | Kee K. Yip, Hirofumi Shigenobu, Takuya Sato, Nobuo Yagami | 1994-08-02 |