Yokoyama; Youichi
Patent Applications and Registrations
Patent applications and USPTO patent grants for Yokoyama; Youichi.The latest application filed is for "remotely controllable circuit breaker with improved arc drive structure".
- Yokoyama; Youichi - Amagasaki JP
- Yokoyama; Youichi - Osaka JP
| Patent | Date |
|---|---|
| Remotely controllable circuit breaker with improved arc drive structure Grant 5,164,693 - Yokoyama , et al. * November 17, 1 | 1992-11-17 |
| Remotely controllable circuit breaker Grant 4,897,625 - Yokoyama , et al. January 30, 1 | 1990-01-30 |
| Circuit breaker Grant 4,370,634 - Kondo , et al. January 25, 1 | 1983-01-25 |
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