Issued Patents All Time
Showing 26–50 of 82 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6655847 | Pivot bearing assembly | Toshisada Koyama | 2003-12-02 |
| 6639336 | Spindle motor and manufacturing method thereof | — | 2003-10-28 |
| 6599022 | Bearing apparatus | — | 2003-07-29 |
| 6599021 | Compound bearing apparatus | — | 2003-07-29 |
| 6599020 | Double seal bearing | — | 2003-07-29 |
| 6582129 | Compound bearing apparatus, and spindle motor and swing arm for hard disk drive means including such bearing apparatus | — | 2003-06-24 |
| 6573215 | Material for bearing rolling element | Kazuo Hokkirigawa, Motoharu Akiyama | 2003-06-03 |
| 6563243 | Spindle motor | Hiroshi Yoshikawa | 2003-05-13 |
| 6556375 | Hard disk drive device | — | 2003-04-29 |
| 6538354 | Spindle motor with toroidal sealing plates | — | 2003-03-25 |
| 6527447 | Sliding of polycrystallized glass | — | 2003-03-04 |
| 6512316 | Spindle motor | Hiroshi Yoshikawa | 2003-01-28 |
| 6511303 | Fan blower with durable bearing structure | — | 2003-01-28 |
| 6464400 | Polycrystalline glass bearing | — | 2002-10-15 |
| 6420809 | Bearing structure for flat motor | — | 2002-07-16 |
| 6402387 | Double seal bearing | — | 2002-06-11 |
| 6395677 | Material for bearing retainer | Kazuo Hokkirigawa, Motoharu Akiyama | 2002-05-28 |
| 6379129 | Blower | — | 2002-04-30 |
| 6345915 | Bearing and method for manufacturing the same | — | 2002-02-12 |
| 6345443 | Compound bearing assembly and method of manufacturing the same | — | 2002-02-12 |
| 6308772 | Heat sink | Kaoru Matsumoto | 2001-10-30 |
| 6273615 | Retainer for a bearing and a ball bearing | Hirotaka Yajima | 2001-08-14 |
| 6246137 | Spindle motor | — | 2001-06-12 |
| 6229237 | Spindle motor | Seiichi Matsuura | 2001-05-08 |
| 6227714 | Compound bearing assembly for swing arm of hard disc drive | — | 2001-05-08 |