Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8013487 | Hydrodynamic bearing device, and spindle motor and information apparatus equipped with same | Koji Hirata, Keigo Kusaka, Yoshihito Watanabe, Hisaaki Yano | 2011-09-06 |
| 7940492 | Hydrodynamic bearing device, spindle motor, and recording and reproducing apparatus | Koji Hirata, Hiroaki Saito, Hiroyuki Kiriyama | 2011-05-10 |
| 7898129 | Spindle motor, and recording and reproducing apparatus equipped with the same | Yoichi Oki, Masahiro Jyono | 2011-03-01 |