Inventor · disambiguated record
Chojuro Yamamitsu
Also filed as: KITAMURA SADAFUMI · YAMAMITSU CHOJURO
21 granted patents·591 citations·filing 1974–2000
96Inventor score
Files withMATSUSHITA ELECTRIC INDUSTRIAL CO LTD21
Top patents by PatentIndex Score
21 records- 0196US4303950AHelical scan video tape recorder for recording video and audio signals on contiguous tracksMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1979·Granted Dec 1, 1981·71 cites·9 claims
- 0295US4691329ABlock encoderMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1986·Granted Sep 1, 1987·146 cites·9 claims
- 0393US4760378AMethod and apparatus for converting a run length limited codeMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1985·Granted Jul 26, 1988·53 cites·85 claims
- 0489US5126852ACompressed video signal recording/variable-speed reproduction apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1991·Granted Jun 30, 1992·107 cites·2 claims
- 0579US4633330ADigital recording and reproducing apparatus for television signalMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1984·Granted Dec 30, 1986·28 cites·18 claims
- 0674US6147823AMethod for recording digital data including a data conversion or format conversion, and apparatus using the methodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Nov 14, 2000·20 cites·32 claims
- 0769US4597021AVideo recording and reproducing apparatus with noise reductionMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1985·Granted Jun 24, 1986·24 cites·4 claims
- 0868US5278706ADigital video signal recording/reproducing apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1991·Granted Jan 11, 1994·17 cites·4 claims
- 0966US4303952ARecording and reproducing systemMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1978·Granted Dec 1, 1981·12 cites·9 claims
- 1066US3969755AEquipment for recording and reproducing color television signalMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1974·Granted Jul 13, 1976·11 cites·9 claims
- 1163US4400742AMagnetic recording and reproducing apparatus for color video signalsMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1980·Granted Aug 23, 1983·15 cites·4 claims
- 1260US4209800AMagnetic color video recording and reproducing system with color killer circuitMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1978·Granted Jun 24, 1980·12 cites·11 claims
- 1358US5367334AVideo signal encoding and decoding apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1992·Granted Nov 22, 1994·18 cites·19 claims
- 1454US4137547ADrop-out responsive magnetic recording and reproducing systemMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1977·Granted Jan 30, 1979·10 cites·9 claims
- 1553US6508596B1Apparatus using a method for recording digital data including a data conversion or format conversion, and apparatus using the methodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Jan 21, 2003·5 cites·2 claims
- 1651US4425585AVideo tape recorder immune to third-order distortion noiseMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1981·Granted Jan 10, 1984·10 cites·12 claims
- 1748US4356506AAutomatic chrominance control circuit for a color video tape recorderMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1980·Granted Oct 26, 1982·8 cites·8 claims
- 1846US6038094ADigital data recording device having a rotary cylinderMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted Mar 14, 2000·9 cites·4 claims
- 1944US4399472APhase difference compensation between separately recorded luminance and chrominance signalsMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1981·Granted Aug 16, 1983·7 cites·11 claims
- 2037US4719519AComponent video signal magnetic recording and reproducing apparatus including means for expanding and compressing luminance and color difference signalsMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1985·Granted Jan 12, 1988·5 cites·7 claims
- 2133US4400741AVideo tape recorder with inter-channel switching circuit for special modes of reproductionMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1981·Granted Aug 23, 1983·3 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →