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Tokorozawa, Japan

Tsunao Hasegawa

USPTO Granted Patents = 10

Average Co-Inventor Count = 1.6

ph-index = 6

Forward Citations = 129(Granted Patents)

Location History:

Saitama, JP (1985 - 1988)
Tokorozawa, JP (1981 - 1995)

Company Filing History:

10 out of 2,861

Pioneer Electronic Corporation

Years Active: 1981-1995

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10 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5461604 - PCM digital audio signal playback apparatus (1995-10-24),

2. 5267095 - Digital reconstructing of harmonics to extend band of frequency response (1993-11-30),

3. 4719525 - Track position correction for a helical scan magnetic playback (1988-01-12),

4. 4639681 - Waveform reshaping circuit (1987-01-27),

5. 4553180 - Recording start position setting device for use in a tape recorder (1985-11-12),

6. 4405953 - Magnetic recording and reproducing device (1983-09-20),

7. 4352130 - Magnetic sound recorder having computer-controlled adjusting device (1982-09-28),

8. 4344094 - Method and apparatus detecting and setting optimum tape recording bias (1982-08-10),

9. 4312020 - Frequency response adjusting device for magnetic sound recorder (1982-01-19),

10. 4297730 - Magnetic recording and reproducing device (1981-10-27),

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