Issued Patents All Time
Showing 26–50 of 56 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7210850 | Hydrodynamic bearing device, spindle motor and hard disk driving apparatus having the hydrodynamic bearing device | Keigo Kusaka, Koichi Fujimoto, Hisaaki Yano | 2007-05-01 |
| 7196868 | Hydrodynamic bearing and disk recording/reproducing apparatus having a vent inside a fixed shaft | Hiroaki Saito, Keigo Kusaka, Daisuke Itou | 2007-03-27 |
| 7186028 | Hydrodynamic bearing device | Tsutomu Hamada, Hideaki Ohno, Yasunori Tokunou | 2007-03-06 |
| 7102851 | Hydrodynamic bearing and disk recording/reproducing apparatus | Hiroaki Saito, Keigo Kusaka, Daisuke Itou | 2006-09-05 |
| 7011450 | Fluid dynamic bearing device and motor including the device | Keigo Kusaka, Daisuke Itou, Hiroaki Saito, Yasuhiro Asaida | 2006-03-14 |
| 6933642 | Hydrodynamic gas bearing | Keigo Kusaka | 2005-08-23 |
| 6760187 | Hydrodynamic bearing and disk apparatus | Hiroaki Saito, Hideaki Ohno | 2004-07-06 |
| 6604858 | Hydro dynamic gas bearing and disk drive using the same | Keigo Kusaka | 2003-08-12 |
| 6196722 | Hydrodynamic bearing | Hiroaki Saito, Takao Yoshitsugu, Yasuo Saeki, Katsunori Sakuragi | 2001-03-06 |
| 5810480 | Vertical hydrodynamic bearing apparatus | Hiroaki Saitoh, Tsutomu Hamada | 1998-09-22 |
| 5797303 | Sleeve bore machining apparatus and sleeve bore machining method | Masato Morimoto | 1998-08-25 |
| 5758421 | Method for manufacturing fluid bearing | — | 1998-06-02 |
| 5718155 | Sleeve bore machining apparatus and sleeve bore machining method | Masato Morimoto | 1998-02-17 |
| 5524464 | Workpiece-bore processing apparatus and method | Masato Morimoto | 1996-06-11 |
| 5504637 | Disk rotating device having dynamic-pressure fluid bearings | Hiroaki Saito | 1996-04-02 |
| 5370463 | Hydrodynamic gas bearing | Hiroyuki Funasho | 1994-12-06 |
| 5361470 | Processing apparatus with movable processing tool | Tutomu Hamada, Yoshihiro Ikemoto, Toru Nakagawa | 1994-11-08 |
| 5273368 | Hydrodynamic gas bearing | Hiroyuki Funasho | 1993-12-28 |
| 5247819 | Bore processing device | Masato Morimoto | 1993-09-28 |
| 5141338 | Dynamic pressure type fluid bearing apparatus | Masato Morimoto, Takashi Sonoda | 1992-08-25 |
| 5120139 | Dynamic pressure gas bearing | Hiroyuki Funasyo | 1992-06-09 |
| 5112141 | Disk driving apparatus | Masato Morimoto, Takashi Sonoda | 1992-05-12 |
| 5057733 | Modular coil cores for electric motor | Takashi Sonoda | 1991-10-15 |
| 5018881 | Self acting gas bearing apparatus | — | 1991-05-28 |
| 4892418 | Hydrodynamic bearing device | Jiro Kataoka, Kouji Nakagawa | 1990-01-09 |