Kameyama; Yoshio
Patent Applications and Registrations
Patent applications and USPTO patent grants for Kameyama; Yoshio.The latest application filed is for "mechanical seal and method of forming a sliding surface thereof".
- Kameyama; Yoshio - Souja JP
- Kameyama; Yoshio - Tokyo JP
| Patent | Date |
|---|---|
| Mechanical seal and method of forming a sliding surface thereof Grant 4,444,399 - Yanai , et al. April 24, 1 | 1984-04-24 |
| Mechanical seal and method of forming a sliding surface thereof Grant 4,420,162 - Yanai , et al. December 13, 1 | 1983-12-13 |
| Method of screen gravure photoengraving Grant 4,158,567 - Honma, deceased , et al. June 19, 1 | 1979-06-19 |
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