Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7921547 | Method of magnetizing permanent magnet for a motor | Shinji Kinoshita, Hiromitsu Gotoh | 2011-04-12 |
| 7796357 | Information recording and playback apparatus and method of manufacturing the same | Shinji Kinoshita, Hiromitsu Gotoh | 2010-09-14 |
| 7307364 | Motor and recording medium drive device | Shinji Kinoshita | 2007-12-11 |
| 6598288 | Armature of motor, manufacturing method of the same and motor using the same and motor having the same | — | 2003-07-29 |
| 6371649 | Method for lubricating a fluid dynamic pressure bearing | Naoki Kawawada, Tadao Iwaki, Atsushi Ota, Koji Nitadori, Toshiharu Kogure +4 more | 2002-04-16 |
| 6371650 | Hydraulic dynamic bearing and spindle motor and rotary assembly provided | Hiromitsu Goto, Yukihiro Nakayama, Ryouji Yoneyama, Takafumi Suzuki, Toshiharu Kogure +4 more | 2002-04-16 |
| 6354742 | Hydraulic dynamic bearing and spindle motor | Tadao Iwaki, Shigeru Ohki, Naoki Kawawada, Atsushi Ohta, Koji Nitadori +2 more | 2002-03-12 |
| 6307291 | Hydraulic dynamic bearing and spindle motor and rotary assembly provided | Tadao Iwaki, Yukihiro Nakayama, Ryouji Yoneyama, Takafumi Suzuki, Toshiharu Kogure +4 more | 2001-10-23 |
| 6247848 | Hydraulic dynamic bearing and spindle motor utilizing hydraulic dynamic bearing | Tadao Iwaki, Shigeru Ohki, Naoki Kawawada, Atsushi Ohta, Koji Nitadori +2 more | 2001-06-19 |
| 6176618 | Dynamic pressure bearing, spindle motor using dynamic pressure bearing, and rotary device having the spindle motor as driving source | Naoki Kawawada | 2001-01-23 |
| 6163952 | Method of manufacturing armature of motor using hoop member | — | 2000-12-26 |
| 6040648 | Spindle motor and rotator device | Naoki Kawawada, Hiroaki Namiki, Tadao Iwaki, Takashi Ishida, Shinichi Hayashizaki +2 more | 2000-03-21 |
| 6036368 | Dynamic pressure bearing device | Tomohiko Hayashi | 2000-03-14 |
| 5821647 | Spindle motor | Hirotada Shimaguchi, Masashi Ogawa | 1998-10-13 |
| 5804896 | High speed spindle motor and apparatus equipped with high speed spindle motor | Masashi Ogawa, Hirotada Shimaguchi | 1998-09-08 |
| 5394045 | Brushless motor | — | 1995-02-28 |
| 5391954 | Direct current motor | Masaya Kawamura | 1995-02-21 |
| 5374867 | Coreless motor | — | 1994-12-20 |
| 5270602 | Corless motor | — | 1993-12-14 |
| 4847526 | Variant-pole electric motor | Akira Yamamura, Tsutomu Osawa, Shigaru Oki | 1989-07-11 |
| 4496887 | Direct-current brushless motor | Noboru Ichihara | 1985-01-29 |