Amano; Hisao
Patent Applications and Registrations
Patent applications and USPTO patent grants for Amano; Hisao.The latest application filed is for "switching power supply".
- Amano; Hisao - Hitachi JP
- Amano; Hisao - Aichi JP
- Amano; Hisao - Hitachi-shi JA
| Patent | Date |
|---|---|
| Switching power supply Grant 4,933,830 - Sato , et al. June 12, 1 | 1990-06-12 |
| Pulse width modulated inverter with high-to-low frequency output converter Grant 4,878,163 - Yamato , et al. October 31, 1 | 1989-10-31 |
| Switching power supply Grant 4,777,575 - Yamato , et al. October 11, 1 | 1988-10-11 |
| Semiconductor switching device having plural MOSFET's, GTO's or the like connected in series Grant 4,692,643 - Tokunaga , et al. September 8, 1 | 1987-09-08 |
| Method and apparatus for yarn piecing in a ringless spinning machine Grant 4,494,371 - Morita , et al. January 22, 1 | 1985-01-22 |
| Gate circuit for thyristors Grant 4,417,156 - Fukui , et al. November 22, 1 | 1983-11-22 |
| D.C. Power supply Grant 4,319,317 - Fukui , et al. March 9, 1 | 1982-03-09 |
| Power supply apparatus for resistance welder including means for preventing polarized transformer excitation Grant 4,306,138 - Tokunaga , et al. December 15, 1 | 1981-12-15 |
| DC Power transmission control Grant 4,264,951 - Konishi , et al. April 28, 1 | 1981-04-28 |
| Frequency regulating device for A.C. systems interconnected through D.C. systems Grant 3,906,335 - Watanabe , et al. September 16, 1 | 1975-09-16 |
| Driving Device For Thyristor Type Ac-dc Converter Grant 3,889,175 - Isogai , et al. June 10, 1 | 1975-06-10 |
| Method for protecting thyristors of a converter and system therefor Grant 3,881,147 - Ueda , et al. April 29, 1 | 1975-04-29 |
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