Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6513983 | Ball bearing | Katsuhiko Tanaka, Keisuke Kimura, Shoji Noguchi, Hiroshi Nakajima, Toru Takamizawa | 2003-02-04 |
| 6264368 | Fluid bearing motor | Katsuhiko Tanaka, Ikunori Sakatani | 2001-07-24 |
| 6172847 | Rotational assembly for disc drive device having small runout and reduced axial displacement | Ikunori Sakatani, Katsuhiko Tanaka, Hiromitsu Muraki, Etsuo Maeda, Hideo Okano | 2001-01-09 |
| 5882122 | Rolling bearing and spindle apparatus | Shoji Noguchi, Katsuhiko Tanaka, Ikunori Sakatani, Keisuke Kimura, Hiroshi Nakajima +1 more | 1999-03-16 |
| 5844169 | Wire duct with a weakened and readily deformable wall for displacing wires held within | Koji Yamashita | 1998-12-01 |
| 5701634 | Grommet | Koji Yamashita | 1997-12-30 |
| 5256213 | Bearing steel | Hiroshi Narai, Tsutomu Abe | 1993-10-26 |
| 4930909 | Rolling bearing | Yasuo Murakami, Youichi Matsumoto | 1990-06-05 |