Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8578611 | Apparatus for manufacturing hydro dynamic bearing device | Kazuto Shimizu, Kimihiko Bitou, Nao Ishiyama, Nobuyoshi Yamashita | 2013-11-12 |
| 8020301 | Method for manufacturing hydro dynamic bearing device | Kazuto Shimizu, Kimihiko Bitou, Nao Ishiyama, Nobuyoshi Yamashita | 2011-09-20 |
| 7941926 | Apparatus for manufacturing hydro dynamic bearing device method | Kazuto Shimizu, Kimihiko Bitou, Nao Ishiyama, Nobuyoshi Yamashita | 2011-05-17 |
| 7600320 | Method for manufacturing hydro dynamic bearing device | Kazuto Shimizu, Kimihiko Bitou, Nao Ishiyama, Nobuyoshi Yamashita | 2009-10-13 |
| 7040019 | Method and apparatus for manufacturing hydro dynamic bearing device | Kazuto Shimizu, Kimihiko Bitou, Nao Ishiyama, Nobuyoshi Yamashita | 2006-05-09 |
| 6799372 | Method for manufacturing hydro dynamic bearing device | Hidekazu Hirano, Norimasa Marui, Kuniharu Kokubu | 2004-10-05 |