Yamamura; Ryuji
Patent Applications and Registrations
Patent applications and USPTO patent grants for Yamamura; Ryuji.The latest application filed is for "semiconductor integrated circuit device with internal voltage controlling circuit".
- Yamamura; Ryuji - Tokyo JP
- Yamamura; Ryuji - Kyoto JP
| Patent | Date |
|---|---|
| Semiconductor integrated circuit device with internal voltage controlling circuit Grant 5,352,935 - Yamamura , et al. October 4, 1 | 1994-10-04 |
| Photo reticle for fabricating a semiconductor device Grant 5,250,983 - Yamamura October 5, 1 | 1993-10-05 |
| Semiconductor input protection device Grant 5,027,252 - Yamamura June 25, 1 | 1991-06-25 |
| Packaging material for high pressure liquid chromatography and method of making the same Grant 4,828,695 - Yamamura , et al. May 9, 1 | 1989-05-09 |
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