Yokozawa; Ayumi
Patent Applications and Registrations
Patent applications and USPTO patent grants for Yokozawa; Ayumi.The latest application filed is for "erasing method in nonvolatile semiconductor memory device".
- Yokozawa; Ayumi - Tokyo JP
| Patent | Date |
|---|---|
| Erasing method in nonvolatile semiconductor memory device Grant 5,933,367 - Matsuo , et al. August 3, 1 | 1999-08-03 |
| Method for forming silicon nitride film having low leakage current and high break down voltage Grant 5,663,087 - Yokozawa September 2, 1 | 1997-09-02 |
| Process simulation method, process simulator and chemical vapor deposition system employing the same Grant 5,590,051 - Yokozawa December 31, 1 | 1996-12-31 |
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