Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8013487 | Hydrodynamic bearing device, and spindle motor and information apparatus equipped with same | Koji Hirata, Takao Yoshitsugu, Yoshihito Watanabe, Hisaaki Yano | 2011-09-06 |
| 7862238 | Hydrodynamic bearing rotary device and information apparatus | Takafumi Asada, Hiroaki Saito, Daisuke Itou, Hiroyuki Kiriyama | 2011-01-04 |
| 7837390 | Hydrodynamic bearing, motor including the same, and recording and reproducing apparatus | Masafumi Kumoi | 2010-11-23 |
| 7830637 | Hydrodynamic bearing device and disk rotation apparatus | Takafumi Asada, Hiroaki Saito, Takao Yoshitsugu, Hiroyuki Kiriyama, Daisuke Ito | 2010-11-09 |
| 7589934 | Hydrodynamic bearing device and disk rotating apparatus | Takafumi Asada, Hiroaki Saito, Takao Yoshitsugu, Hiroyuki Kiriyama, Daisuke Ito | 2009-09-15 |
| 7492548 | Hydrodynamic bearing device and disk rotating apparatus | Takafumi Asada, Hiroaki Saito, Takao Yoshitsugu, Hiroyuki Kiriyama, Daisuke Ito | 2009-02-17 |
| 7237956 | Hydrodynamic bearing and disc rotation apparatus using the same | Takafumi Asada, Hiroaki Saito, Daisuke Itou | 2007-07-03 |
| 7237955 | Hydrodynamic bearing and disc rotation apparatus using the same | Takafumi Asada, Hiroaki Saito, Daisuke Itou | 2007-07-03 |
| 7210850 | Hydrodynamic bearing device, spindle motor and hard disk driving apparatus having the hydrodynamic bearing device | Takafumi Asada, Koichi Fujimoto, Hisaaki Yano | 2007-05-01 |
| 7196868 | Hydrodynamic bearing and disk recording/reproducing apparatus having a vent inside a fixed shaft | Takafumi Asada, Hiroaki Saito, Daisuke Itou | 2007-03-27 |
| 7118353 | Fluid transport system and method therefor | Teruo Maruyama, Miyuki Furuya, Kazuichi Yamashita | 2006-10-10 |
| 7102851 | Hydrodynamic bearing and disk recording/reproducing apparatus | Takafumi Asada, Hiroaki Saito, Daisuke Itou | 2006-09-05 |
| 7011450 | Fluid dynamic bearing device and motor including the device | Daisuke Itou, Hiroaki Saito, Takafumi Asada, Yasuhiro Asaida | 2006-03-14 |
| 6933642 | Hydrodynamic gas bearing | Takafumi Asada | 2005-08-23 |
| 6604858 | Hydro dynamic gas bearing and disk drive using the same | Takafumi Asada | 2003-08-12 |