Umemura; Shizuo
Patent Applications and Registrations
Patent applications and USPTO patent grants for Umemura; Shizuo.The latest application filed is for "information recording medium and method".
- Umemura; Shizuo - Kanagawa JP
- Umemura; Shizuo - Ibaraki JP
| Patent | Date |
|---|---|
| Information recording medium and method Grant 5,418,029 - Yamamoto , et al. May 23, 1 | 1995-05-23 |
| Magneto-optical recording medium Grant 5,055,353 - Yamamoto , et al. October 8, 1 | 1991-10-08 |
| Microwave device Grant 4,822,673 - Umemura April 18, 1 | 1989-04-18 |
| Method of forming ultrafine patterns Grant 4,713,258 - Umemura December 15, 1 | 1987-12-15 |
| Process for preparing ferromagnetic metal powder and a magnetic recording medium including the powder Grant 4,481,253 - Matsufuji , et al. November 6, 1 | 1984-11-06 |
| Ferromagnetic powder treated with an organic silane compound Grant 4,437,882 - Umemura , et al. March 20, 1 | 1984-03-20 |
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