Inventor · disambiguated record
Takaharu Noguchi
Also filed as: KETORI TAKAO · NOGUCHI TAKAHARU
78 granted patents·5 pending applications·1,950 citations·filing 1978–2012
99Inventor score
Top patents by PatentIndex Score
83 records- 0199US4539615AAzimuthal magnetic recording and reproducing apparatusHITACHI LTD·Filed 1982·Granted Sep 3, 1985·125 cites·11 claims
- 0297US4682332AMethod and apparatus for recording digital signalsHITACHI LTD·Filed 1985·Granted Jul 21, 1987·85 cites·7 claims
- 0396US7224886B2Method of using AV devices and AV device systemHITACHI LTD·Filed 2001·Granted May 29, 2007·76 cites·21 claims
- 0496US5687275ATrick play data indentification methods and apparatus for use with digital video recording and playback devicesHITACHI AMERICA LTD·Filed 1995·Granted Nov 11, 1997·104 cites·23 claims
- 0594US5912969AInformation receiving and recording/reproducing apparatus/method having function for limiting/delimiting for protecting copyright of recording informationHITACHI LTD·Filed 1997·Granted Jun 15, 1999·95 cites·15 claims
- 0694US5627655ARecording apparatus and reproducing apparatus for video signalsHITACHI LTD·Filed 1994·Granted May 6, 1997·137 cites·20 claims
- 0794US4646301ADecoding method and system for doubly-encoded Reed-Solomon codesHITACHI LTD·Filed 1984·Granted Feb 24, 1987·46 cites·11 claims
- 0893US6041161AInput-output circuit, recording apparatus and reproduction apparatus for digital video signalHITACHI LTD·Filed 1997·Granted Mar 21, 2000·50 cites·10 claims
- 0993US5729649AMethods and apparatus for recording data on a digital storage medium in a manner that facilitates the reading back of data during trick play operationHITACHI AMERICA LTD·Filed 1996·Granted Mar 17, 1998·64 cites·11 claims
- 1092US6163644AMethod and apparatus for receiving and/or reproducing digital signalHITACHI LTD·Filed 1996·Granted Dec 19, 2000·103 cites·16 claims
- 1189US5878188AApparatus for recording and reproducing temporally compressed digital information signalHITACHI LTD·Filed 1994·Granted Mar 2, 1999·32 cites·11 claims
- 1289US4677622AError correction method and systemHITACHI LTD·Filed 1984·Granted Jun 30, 1987·33 cites·5 claims
- 1389US4617599APCM signal recording/reproducing apparatusHITACHI LTD·Filed 1984·Granted Oct 14, 1986·33 cites·10 claims
- 1488US5878010AMethod and apparatus for recording digital signalHITACHI LTD·Filed 1995·Granted Mar 2, 1999·41 cites·27 claims
- 1588US5699370AInformation recording and reproduction apparatus to be controlled by temporal informationHITACHI LTD·Filed 1995·Granted Dec 16, 1997·49 cites·15 claims
- 1687US4942487AApparatus for recording/reproducing a digital signal at variable speedsHITACHI LTD·Filed 1988·Granted Jul 17, 1990·35 cites·3 claims
- 1787US4492997AReproducing and amplifying circuit for magnetoresistive headHITACHI LTD·Filed 1981·Granted Jan 8, 1985·29 cites·12 claims
- 1885US6321025B1Method and apparatus for receiving and/or reproducing digital signalHITACHI LTD·Filed 2000·Granted Nov 20, 2001·19 cites·20 claims
- 1985US5825969AInformation management apparatus for inhibiting reproduction in a video cassette recorderHITACHI LTD·Filed 1997·Granted Oct 20, 1998·30 cites·17 claims
- 2084US6339676B1Video signal recording and reproducing apparatus compatible with analog and digital video signal recording and reproducingHITACHI LTD·Filed 2000·Granted Jan 15, 2002·20 cites·9 claims
- 2184US5623344ADigital video recording device with trick play capabilityHITACHI AMERICA LTD·Filed 1994·Granted Apr 22, 1997·50 cites·23 claims
- 2284US4758907AMethod and apparatus for recording and/or reproducing PCM signalsHITACHI LTD·Filed 1986·Granted Jul 19, 1988·28 cites·10 claims
- 2384US4628373ARotating head type magnetic record/reproduce apparatusHITACHI LTD·Filed 1984·Granted Dec 9, 1986·26 cites·2 claims
- 2484US4622600ARotary-head type PCM data recording/reproducing method and apparatus with a redundancy-reduced control data formatHITACHI LTD·Filed 1984·Granted Nov 11, 1986·25 cites·9 claims
- 2583US6600870B1Input-output circuit, recording apparatus and reproduction apparatus for digital video signalHITACHI LTD·Filed 1999·Granted Jul 29, 2003·23 cites·13 claims
- 2682US4685004ARotary head type PCM recording and reproduction method and systemHITACHI LTD·Filed 1985·Granted Aug 4, 1987·28 cites·9 claims
- 2781US5719943ADigital information signal transmitting/receiving method and systemHITACHI LTD·Filed 1995·Granted Feb 17, 1998·70 cites·27 claims
- 2880US4905104ARotary head type digital signal recording and/or reproducing apparatus for recording and/or reproducing with a variable speedHITACHI LTD·Filed 1987·Granted Feb 27, 1990·26 cites·24 claims
- 2980US4758902APCM signal recording and reproducing apparatus including simultaneous error detection/correctionHITACHI LTD·Filed 1986·Granted Jul 19, 1988·25 cites·5 claims
- 3079US7197232B2Digital information recording-reproducing apparatusHITACHI LTD·Filed 2004·Granted Mar 27, 2007·8 cites·8 claims
- 3179US6201654B1Method and apparatus for recording digital signalHITACHI LTD·Filed 1999·Granted Mar 13, 2001·24 cites·9 claims
- 3279US4649542ADigital signal transmission method providing high error correction capabilityHITACHI LTD·Filed 1984·Granted Mar 10, 1987·21 cites·6 claims
- 3377US5903704AApparatus for selectively recording and reproducing received analog and digital signalsHITACHI LTD·Filed 1995·Granted May 11, 1999·26 cites·13 claims
- 3477US4843493ARotary head type magnetic recording and reproducing apparatus and method of producing tracking control signals thereforHITACHI LTD·Filed 1986·Granted Jun 27, 1989·24 cites·25 claims
- 3576US4670796ARotary head type PCM recorderHITACHI LTD·Filed 1984·Granted Jun 2, 1987·18 cites·7 claims
- 3675US8254758B2Input-output circuit, recording apparatus and reproduction apparatus for digital video signalOKAMOTO HIROO·Filed 2008·Granted Aug 28, 2012·1 cites·4 claims
- 3775US6204985B1Information management apparatusHITACHI LTD·Filed 2000·Granted Mar 20, 2001·6 cites·8 claims
- 3874US8699864B2Method and apparatus for receiving a digital signal and apparatus for recording and reproducing the digital signalOWASHI HITOAKI·Filed 2009·Granted Apr 15, 2014·3 cites·2 claims
- 3973US4594621ARotary head type digital information signal recording and reproducing apparatus and tracking control method thereinHITACHI LTD·Filed 1984·Granted Jun 10, 1986·16 cites·7 claims
- 4072US7319808B2Input-output circuit, recording apparatus and reproduction apparatus for digital video signalHITACHI LTD·Filed 2003·Granted Jan 15, 2008·6 cites·26 claims
- 4168US6757478B2Method and apparatus for receiving a digital signal and apparatus for recording and reproducing the digital signalHITACHI LTD·Filed 2001·Granted Jun 29, 2004·5 cites·11 claims
- 4268US5583650ADigital recording and playback device error correction methods and apparatus for use with trick play dataHITACHI AMERICA LTD·Filed 1995·Granted Dec 10, 1996·35 cites·22 claims
- 4367US5341248AMagnetic recording/reproducing apparatus having head structure for selectively recording/reproducing either of two kinds of signals containing different amounts of informationHITACHI LTD·Filed 1993·Granted Aug 23, 1994·17 cites·16 claims
- 4467US4758903AApparatus for recording and reproducing video signal and digital signal other than video signalHITACHI LTD·Filed 1985·Granted Jul 19, 1988·22 cites·12 claims
- 4566US6807364B2Digital information recording-reproducing apparatusHITACHI LTD·Filed 2001·Granted Oct 19, 2004·4 cites·73 claims
- 4666US5465180AMethod of and apparatus for recording and/or reproducing a current digital video signal and a high-definition digital video signal in a common track formatHITACHI LTD·Filed 1993·Granted Nov 7, 1995·25 cites·14 claims
- 4765US8340501B2Input-output circuit, recording apparatus and reproduction apparatus for digital video signalOKAMOTO HIROO·Filed 2008·Granted Dec 25, 2012·0 cites·2 claims
- 4865US8270812B2Input-output circuit, recording apparatus and reproduction apparatus for digital video signalOKAMOTO HIROO·Filed 2008·Granted Sep 18, 2012·0 cites·2 claims
- 4965US6363210B1Communication system for encrypted data and apparatus for selectively recording and reproducing received analog signal and received digital signalHITACHI LTD·Filed 1999·Granted Mar 26, 2002·25 cites·11 claims
- 5064US6388831B1Apparatus and method for limiting the reproduction of main informationHITACHI LTD·Filed 2000·Granted May 14, 2002·3 cites·14 claims
Showing the top 50 of 83 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →