Issued Patents All Time
Showing 1–25 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7559697 | Dynamic bearing unit | Hideo Shikata | 2009-07-14 |
| 7251891 | Production method for sintered bearing member, fluid dynamic pressure bearing device, and spindle motor | Shunichi Togashi, Tadashi Akahori | 2007-08-07 |
| 7218023 | Spindle motor | Jun Hirose, Shunichi Togashi | 2007-05-15 |
| 6951423 | Sintered bearing and production method therefor | Noriyuki Yoshimura | 2005-10-04 |
| 6851859 | Bearing unit, production method therefor and spindle motor | Toshikazu Takehana, Hidekazu Tokushima, Hideo Shikata, Jun Hirose | 2005-02-08 |
| 6846109 | Sintered bearing and production method therefor | Noriyuki Yoshimura, Jun Hirose | 2005-01-25 |
| 6771460 | Spindle motor and magnetic disc device using thereof having radial and thrust bearings | Masaru Muranishi, Shozo Saegusa, Tsuyoshi Takahashi, Kenji Tomida, Takashi Matsuki +5 more | 2004-08-03 |
| 6756715 | Spindle motor | Jun Hirose, Tadayoshi Yano, Toshikazu Takehana, Hidekazu Tokushima | 2004-06-29 |
| 6680814 | Spindle motor and magnetic disc device with hydrodynamic bearings | Masaru Muranishi, Shozo Saegusa, Tsuyoshi Takahashi, Kenji Tomida, Takashi Matsuki +5 more | 2004-01-20 |
| 6574186 | Assembly method of motor using magnetic lubrication fluid | Toshikazu Takehana, Motohiro Miyasaka | 2003-06-03 |
| 6477133 | Disk drive with unbalance correcting mechanism | Yasuhiro Yoshimura, Yoshishige Endo, Yoshihiro Satou, Yoshiaki Yamauchi, Noriyuki Kumasaka +3 more | 2002-11-05 |
| 6469866 | Spindle motor and magnetic disc device with hydrodynamic bearing | Masaru Muranishi, Shozo Saegusa, Tsuyoshi Takahashi, Kenji Tomida, Takashi Matsuki +5 more | 2002-10-22 |
| 6369980 | Disk drive unit with hydrodynamic fluid bearing unit and disk device with said drive unit | Kenji Tomida, Hiroshi Nishida, Kouki Uefune, Yuuichi Yanagase, Masaru Muranishi +4 more | 2002-04-09 |
| 6369981 | Disk drive unit with hydrodynamic fluid bearing unit and disk device with said drive unit | Kenji Tomida, Hiroshi Nishida, Kouki Uefune, Yuuichi Yanagase, Masaru Muranishi +4 more | 2002-04-09 |
| 6356408 | Magnetic disk apparatus, including spindle motor having air flow passage in hub for pressure balance | Masaru Muranishi, Kenji Tomida, Kouki Uefune, Shozo Saegusa, Yuuichi Yanagase | 2002-03-12 |
| 6256288 | Disk apparatus and motor therefor | Yoshiaki Yamauchi, Takashi Kouno, Shinobu Yoshida, Noriyuki Kumasaka, Ikuo Nishida +1 more | 2001-07-03 |
| 6243230 | Disk drive unit with hydrodynamic fluid bearing unit and disk device with said drive unit | Kenji Tomida, Hiroshi Nishida, Kouki Uefune, Yuuichi Yanagase, Masaru Muranishi +4 more | 2001-06-05 |
| 5834870 | Oil impregnated porous bearing units and motors provided with same | Hidekazu Tokushima, Motohiro Miyasaka, Michihiro Aizawa, Hideo Shikata | 1998-11-10 |
| 5821655 | Magnetic fluid bearing unit structure and motor having the same | Hidekazu Tokushima, Motohiro Miyasaka, Michihiro Aizawa, Hideo Shikata | 1998-10-13 |
| 5810481 | Oil retaining bearing unit and motor having oil retaining bearing unit | Makoto Kondoh, Takashi Kono, Yoshihiro Sato, Seiichiro Terashima | 1998-09-22 |
| RE35718 | Bearing apparatus | Kazuhiko Kawaike, Hiroo Hiroyama, Satoshi Uno | 1998-01-27 |
| 5645355 | Bearing unit | Hidekazu Tokushima, Motohiro Miyasaka, Michihiro Aizawa, Hideo Shikata | 1997-07-08 |
| 5574322 | Motor, a printer having such a motor and a disk drive system having such a motor | Takeshi Nakajima, Ichiro Hashimoto, Satosi Uno, Sueo Akashi | 1996-11-12 |
| 5541462 | Rotary body bearing apparatus, motor and polygon mirror motor | Ichiro Hashimoto, Takeshi Nakajima, Sueo Akashi | 1996-07-30 |
| 5493161 | Sealed magnetic fluid bearing for polygon mirror drive motor | Satosi Uno, Sueo Akashi, Kazuhiko Kawaike, Hiroo Hiroyama, Kosho Ishizaki | 1996-02-20 |