Inventor · disambiguated record
Keiro Shinkawa
Also filed as: SHINAGAWA MITSUHISA · SHINKAWA KEIRO
21 granted patents·488 citations·filing 1975–1996
96Inventor score
Top patents by PatentIndex Score
21 records- 0185US5760820ADigital signal transmission system with priority information forcing display of text on a receiverHITACHI LTD·Filed 1996·Granted Jun 2, 1998·100 cites·4 claims
- 0284US4435688AFET Microwave oscillator being frequency stabilized by capacitive reactance micro-strip stub lineHITACHI LTD·Filed 1981·Granted Mar 6, 1984·34 cites·15 claims
- 0381US4307352AMicro-strip oscillator with dielectric resonatorHITACHI LTD·Filed 1979·Granted Dec 22, 1981·28 cites·3 claims
- 0479US4417279AFM Television signal receiving circuitHITACHI LTD·Filed 1982·Granted Nov 22, 1983·30 cites·4 claims
- 0578US4249263AMixer circuitHITACHI LTD·Filed 1979·Granted Feb 3, 1981·25 cites·9 claims
- 0675US4219779ASelf-oscillating mixer circuitHITACHI LTD·Filed 1978·Granted Aug 26, 1980·23 cites·6 claims
- 0772US5414470ASync signal generator for generating a second sync signal synchronized with a first sync signalHITACHI LTD·Filed 1991·Granted May 9, 1995·38 cites·18 claims
- 0870US5303396ADiversity reception having a plurality of antennas for use with moving vehiclesHITACHI LTD·Filed 1991·Granted Apr 12, 1994·51 cites·2 claims
- 0970US4187476ASHF band oscillator circuit using FETHITACHI LTD·Filed 1978·Granted Feb 5, 1980·19 cites·5 claims
- 1069US4642573APhase locked loop circuit for demodulating suppressed carrier signalsHITACHI LTD·Filed 1985·Granted Feb 10, 1987·36 cites·6 claims
- 1163US4731875AFrequency converter used for a receiver which receives signals of a UHF band or a microwave bandHITACHI LTD·Filed 1986·Granted Mar 15, 1988·21 cites·5 claims
- 1260US4491809AMatching circuit for a pre-amplifier of SHF band television signal receiverHITACHI LTD·Filed 1982·Granted Jan 1, 1985·10 cites·5 claims
- 1356US4031472AMixer circuitHITACHI LTD·Filed 1975·Granted Jun 21, 1977·12 cites·8 claims
- 1455US4211977AMixer circuit arrangementHITACHI LTD·Filed 1977·Granted Jul 8, 1980·11 cites·3 claims
- 1555US4008438ARat-race mixer circuitHITACHI LTD·Filed 1975·Granted Feb 15, 1977·13 cites·3 claims
- 1653US5285279AGhost canceller using fuzzy controlHITACHI LTD·Filed 1991·Granted Feb 8, 1994·12 cites·26 claims
- 1751US5138451ATelevision receiverHITACHI LTD HITACHI VIDEO ENGI·Filed 1989·Granted Aug 11, 1992·14 cites·8 claims
- 1835US4713556AFrequency converter circuitHITACHI LTD·Filed 1985·Granted Dec 15, 1987·4 cites·14 claims
- 1933US5210607AGhost reduction device for removing ghost components of a television signalHITACHI LTD·Filed 1991·Granted May 11, 1993·3 cites·17 claims
- 2033US4602217AFM demodulator capable of shifting demodulation-band center frequencyHITACHI LTD·Filed 1984·Granted Jul 22, 1986·2 cites·20 claims
- 2132US4589016AFM television signal receiving circuitHITACHI LTD·Filed 1983·Granted May 13, 1986·2 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →