Issued Patents All Time
Showing 1–25 of 82 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7764463 | Fluid dynamic pressure bearing for spindle motors and storage disk drive devices and having ridge portions between grooves in the fluid dynamic pressure bearing | Hiroshi Yoshikawa | 2010-07-27 |
| 7661882 | Fluid dynamic pressure bearing device, spindle motor provided with the fluid dynamic pressure bearing device, and recording disk drive device | Tadashi Akahori | 2010-02-16 |
| 7654744 | Fluid dynamic bearing mechanism for a motor | Tadashi Akahori | 2010-02-02 |
| 7648281 | Fluid dynamic bearing, motor and storage disk device | Kyoji Kato | 2010-01-19 |
| 7510330 | Fluid dynamic bearing and a storage disk drive with a spindle motor having the fluid dynamic bearing | — | 2009-03-31 |
| 7306374 | Special type bearing device | Kazuo Hokkirigawa | 2007-12-11 |
| 7246440 | Spindle motor and method of manufacturing the same | Kenji Fukunaga | 2007-07-24 |
| 7176594 | Motor | Akio Okamiya | 2007-02-13 |
| 7168857 | Special type bearing device | Kazuo Hokkirigawa | 2007-01-30 |
| 7144932 | Low-friction, high-dispersion synthetic resin composition containing fine particles of RB ceramic or CRB ceramic and a method for its preparation | Kazuo Hokkirigawa | 2006-12-05 |
| 7000320 | Process for manufacturing miniature ball bearings | — | 2006-02-21 |
| 6990738 | Process for manufacturing miniature ball bearings | — | 2006-01-31 |
| 6965493 | Hydrodynamic pressure bearing system and spindle motor using the same | — | 2005-11-15 |
| 6916160 | Axial electric fan blower with electric components housing sealed from moisture, dirt and dust or other harmful gas | — | 2005-07-12 |
| 6855279 | Weather-resistant exterior building material | Kazuo Hokkirigawa | 2005-02-15 |
| 6855214 | Anti-friction bearing | Yutaka Daikuhara | 2005-02-15 |
| 6799893 | Special type bearing device | Kazuo Hokkirigawa | 2004-10-05 |
| 6794774 | Spindle motor | Hiroshi Yoshikawa | 2004-09-21 |
| 6787075 | Method of making synthetic resin composition with lubricative underwater properties containing RBC or CRBC fine powder | Kazuo Hokkirigawa | 2004-09-07 |
| 6777360 | Ceramic material, method of producing same, and formed product thereof | Kazuo Hokkirigawa, Motoharu Akiyama | 2004-08-17 |
| 6734591 | Spindle motor | Hiroshi Yoshikawa | 2004-05-11 |
| 6734590 | Motor | Akio Okamiya | 2004-05-11 |
| 6712517 | Sleeve bearing arrangement | Kazuo Hokkirigawa, Motoharu Akiyama | 2004-03-30 |
| 6683264 | Low profile key switch structure | Masamitsu Osada, Masayuki Yoneyama | 2004-01-27 |
| 6655847 | Pivot bearing assembly | Toshisada Koyama | 2003-12-02 |