Niwa; Fumiyuki
Patent Applications and Registrations
Patent applications and USPTO patent grants for Niwa; Fumiyuki.The latest application filed is for "voltage supply circuit, power supply circuit, microphone unit using the same, and microphone unit sensitivity adjustment method".
- Niwa; Fumiyuki - Shiga JP
| Patent | Date |
|---|---|
| Voltage supply circuit, power supply circuit, microphone unit using the same, and microphone unit sensitivity adjustment method Grant 7,929,716 - Niwa , et al. April 19, 2 | 2011-04-19 |
| Voltage supply circuit and microphone unit Grant 7,864,970 - Niwa , et al. January 4, 2 | 2011-01-04 |
| Voltage supply circuit, power supply circuit, microphone unit using the same, and microphone unit sensitivity adjustment method App 20060147061 - Niwa; Fumiyuki ; et al. | 2006-07-06 |
| Voltage supply circuit and microphone unit App 20060147062 - Niwa; Fumiyuki ; et al. | 2006-07-06 |
| Stepping motor driving apparatus having small time constant regenerative current path Grant 6,114,826 - Nishiura , et al. September 5, 2 | 2000-09-05 |
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