Fukushima; Isao
Patent Applications and Registrations
Patent applications and USPTO patent grants for Fukushima; Isao.The latest application filed is for "video signal preamplifier circuit".
- Fukushima; Isao - Ibaraki JP
- Fukushima; Isao - Katsuta JP
- Fukushima; Isao - Fujisawa JP
- Fukushima; Isao - Toyokawa JA
| Patent | Date |
|---|---|
| Video signal preamplifier circuit Grant 4,956,729 - Yatsugi , et al. September 11, 1 | 1990-09-11 |
| Multi-channel inverter circuit Grant 4,847,742 - Ohashi , et al. July 11, 1 | 1989-07-11 |
| Integrated circuit with a phase-locked loop Grant 4,667,168 - Shiomi , et al. May 19, 1 | 1987-05-19 |
| Apparatus for driving brushless motor Grant 4,651,067 - Ito , et al. March 17, 1 | 1987-03-17 |
| Auto-tracking method and apparatus of a magnetic recording/reproducing apparatus Grant 4,613,914 - Kobori , et al. September 23, 1 | 1986-09-23 |
| Frequency-voltage converter Grant 4,605,901 - Kobori , et al. August 12, 1 | 1986-08-12 |
| Multiplex magnetic recording and reproduction system Grant 4,591,924 - Miura , et al. May 27, 1 | 1986-05-27 |
| Bipolar transistor circuit with FET constant current source Grant 4,590,438 - Fukushima , et al. May 20, 1 | 1986-05-20 |
| Motor control apparatus Grant 4,518,901 - Fukushima , et al. May 21, 1 | 1985-05-21 |
| Power supply for plural brushless DC motors Grant 4,503,369 - Nishijima , et al. March 5, 1 | 1985-03-05 |
| Motor driving circuit Grant 4,494,056 - Nishijima , et al. January 15, 1 | 1985-01-15 |
| Signal voltage dividing circuit Grant 4,460,953 - Fukushima , et al. July 17, 1 | 1984-07-17 |
| Electronic editing control apparatus for a video tape recorder Grant 4,358,797 - Nishijima , et al. November 9, 1 | 1982-11-09 |
| Automatic gain control apparatus for a motor servo system Grant 4,338,554 - Fukushima , et al. July 6, 1 | 1982-07-06 |
| Signal holding circuit Grant 4,198,541 - Fukushima April 15, 1 | 1980-04-15 |
| Dynamic drive circuit for light-emitting diodes Grant 4,190,836 - Kimura , et al. February 26, 1 | 1980-02-26 |
| Demodulator For Frequency-modulated Signal Grant 3,851,263 - Fukushima , et al. November 26, 1 | 1974-11-26 |
| Control Apparatus For An Induction Motor Grant 3,767,987 - Mitsui , et al. October 23, 1 | 1973-10-23 |
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