Inventor · disambiguated record
Yukihiko Machida
Also filed as: MACHIDA YUKIHIKO
13 granted patents·280 citations·filing 1974–1991
92Inventor score
Files withSONY CORP13
Top patents by PatentIndex Score
13 records- 0194US4821032ACommunication system for video information apparatusSONY CORP·Filed 1985·Granted Apr 11, 1989·109 cites·6 claims
- 0292US4551771AMethod and apparatus for recording digital information in alternate recording tracksSONY CORP·Filed 1982·Granted Nov 5, 1985·43 cites·26 claims
- 0382US4477844AApparatus for recording a digital audio signal in a track with a video signalSONY CORP·Filed 1982·Granted Oct 16, 1984·32 cites·13 claims
- 0476US3997823ABrushless DC motor driving circuitSONY CORP·Filed 1974·Granted Dec 14, 1976·20 cites·5 claims
- 0568US4804894AMotor rotation servo control apparatusSONY CORP·Filed 1987·Granted Feb 14, 1989·27 cites·18 claims
- 0655US3949314APhase demodulatorSONY CORP·Filed 1974·Granted Apr 6, 1976·9 cites·5 claims
- 0750US4713702AData communication apparatusSONY CORP·Filed 1984·Granted Dec 15, 1987·13 cites·9 claims
- 0849US4326223AVideo signal recording and/or reproducing apparatus with gain controlSONY CORP·Filed 1979·Granted Apr 20, 1982·7 cites·26 claims
- 0947US4823206AVideo signal recording and/or reproducing apparatusSONY CORP·Filed 1987·Granted Apr 18, 1989·7 cites·13 claims
- 1047US4021742APhase compressor for phase modulated signalSONY CORP·Filed 1976·Granted May 3, 1977·7 cites·5 claims
- 1135US3992719AVideo signal recording/reproducing apparatus wherein the phase of the recorded signal is synchronized with the scanning headSONY CORP·Filed 1975·Granted Nov 16, 1976·3 cites·11 claims
- 1232USRE34650ECommunication system for video information apparatusSONY CORP·Filed 1991·Granted Jun 28, 1994·1 cites·7 claims
- 1332US4559501ASignal translating circuitSONY CORP·Filed 1983·Granted Dec 17, 1985·2 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →