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Toshihiko Ryu

USPTO Granted Patents = 11

Average Co-Inventor Count = 1.3

ph-index = 9

Forward Citations = 162(Granted Patents)

Company Filing History:

8 out of 35,756

Nec Corporation

Nippon Electric Co., Ltd.

Years Active: 1981-1988

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11 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 4789993 - One frequency repeater for a digital radio system (1988-12-06),

2. 4688235 - Cross-polarization interference canceller (1987-08-18),

3. 4675619 - Multiple quadrature-phase amplitude modulating system capable of (1987-06-23),

4. 4663768 - Diversity system of selection type equipped with a code (1987-05-05),

5. 4627072 - Equalizer modifying a phase of a gain control signal to carry out (1986-12-02),

6. 4575862 - Cross-polarization distortion canceller for use in digital radio (1986-03-11),

7. 4546323 - Quadrature amplitude demodulator comprising a combination of a full-wave (1985-10-08),

8. 4540948 - 8-Phase phase-shift keying demodulator (1985-09-10),

9. 4453256 - Adaptive equalizer system for quadrature amplitude modulation (1984-06-05),

10. 4333063 - Amplitude equalizer (1982-06-01),

11. 4258340 - Amplitude equalizer (1981-03-24),

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