Inventor · disambiguated record
Tokuya Fukuda
Also filed as: FUKUDA TOKUYA
20 granted patents·281 citations·filing 1985–1996
95Inventor score
Files withSONY CORP20
Top patents by PatentIndex Score
20 records- 0182US5471481ATesting method for electronic apparatusSONY CORP·Filed 1993·Granted Nov 28, 1995·54 cites·15 claims
- 0276US5557328AVideo camera having an improved zoom systemSONY CORP·Filed 1994·Granted Sep 17, 1996·50 cites·19 claims
- 0371US5049983ADigital camera apparatus having an analog emphasis circuitrySONY CORP·Filed 1990·Granted Sep 17, 1991·35 cites·6 claims
- 0466US5390191AApparatus and method for testing the interconnection between integrated circuitsSONY CORP·Filed 1993·Granted Feb 14, 1995·27 cites·20 claims
- 0562US5291276AApparatus for processing a video signal to generate video signal adjustment data that is self-contained with the video equipmentSONY CORP·Filed 1992·Granted Mar 1, 1994·21 cites·14 claims
- 0662US4926261AVideo noise reduction circuitSONY CORP·Filed 1989·Granted May 15, 1990·19 cites·10 claims
- 0760US5142375AVideo camera integral with magnetic recording and reproducing device, and with color video signal processing apparatusSONY CORP·Filed 1989·Granted Aug 25, 1992·16 cites·8 claims
- 0847US4709275AApparatus for magnetically recording and/or reproducing two-channel audio signals together with a color video signal in successive oblique tracks on a magnetic tapeSONY CORP·Filed 1985·Granted Nov 24, 1987·9 cites·7 claims
- 0943US5070408AFocusing apparatus and digital filters for use therewithSONY CORP·Filed 1990·Granted Dec 3, 1991·8 cites·17 claims
- 1040US5784118AVideo signal phase synchronizing method, circuit and synthesizing apparatusSONY CORP·Filed 1996·Granted Jul 21, 1998·9 cites·6 claims
- 1140US4851930AMagnetic recording and reproducing apparatus compensating for the deviation of H alignment during a variable speed reproductionSONY CORP·Filed 1987·Granted Jul 25, 1989·6 cites·15 claims
- 1239US4891689AColor signal matrix circuitsSONY CORP·Filed 1989·Granted Jan 2, 1990·6 cites·7 claims
- 1339US4731674AColor video signal processing apparatus for crosstalk eliminationSONY CORP·Filed 1985·Granted Mar 15, 1988·6 cites·15 claims
- 1436US4807049AC-type comb filter with negative feedbackSONY CORP·Filed 1988·Granted Feb 21, 1989·4 cites·9 claims
- 1536US4689580AActive filter circuitSONY CORP·Filed 1986·Granted Aug 25, 1987·4 cites·6 claims
- 1635US5087967AColor image pickup device having a level correcting circuit for correcting level variations in color image signalsSONY CORP·Filed 1989·Granted Feb 11, 1992·3 cites·10 claims
- 1734US4750033AComb filter, chrominance and luminance signal separating circuit for modifying the level-frequency characteristic of the luminance signalSONY CORP·Filed 1987·Granted Jun 7, 1988·3 cites·7 claims
- 1830US5185707AFocusing apparatus and digital filters for use therewithSONY CORP·Filed 1991·Granted Feb 9, 1993·0 cites·16 claims
- 1929US5291277ADigital image signal processing circuitsSONY CORP·Filed 1993·Granted Mar 1, 1994·0 cites·5 claims
- 2027US4725900AApparatus employing adjustable modulation index for reducing cross talk between recorded audio and video signalsSONY CORP·Filed 1985·Granted Feb 16, 1988·1 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →