Hirai; Osamu
Patent Applications and Registrations
Patent applications and USPTO patent grants for Hirai; Osamu.The latest application filed is for "hollow carbon fiber and production method".
- Hirai; Osamu - Hitachi JP
- Hirai; Osamu - Odawara JP
| Patent | Date |
|---|---|
| Hollow carbon fiber and production method Grant 7,273,652 - Takeda , et al. September 25, 2 | 2007-09-25 |
| Hollow carbon fiber and production method Grant 6,743,500 - Takeda , et al. June 1, 2 | 2004-06-01 |
| Hollow carbon fiber and production method Grant 6,641,792 - Takeda , et al. November 4, 2 | 2003-11-04 |
| Hollow carbon fiber and production method App 20030039830 - Takeda, Shinji ; et al. | 2003-02-27 |
| Hollow carbon fiber and production method App 20030039829 - Takeda, Shinji ; et al. | 2003-02-27 |
| Hollow carbon fiber and production method App 20030026980 - Takeda, Shinji ; et al. | 2003-02-06 |
| Thin-film magnetic head having special input/output terminal backing connection and method of fabricating the same Grant 4,949,209 - Imanaka , et al. August 14, 1 | 1990-08-14 |
| Thin-film magnetic head and method for fabricating the same Grant 4,550,353 - Hirai , et al. October 29, 1 | 1985-10-29 |
| Liquid chromatographic column packing material Grant 4,505,818 - Mukoyama , et al. March 19, 1 | 1985-03-19 |
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