Inventor · disambiguated record
Kenji Katsumata
Also filed as: KATSUMATA KENJI
67 granted patents·28 pending applications·1,397 citations·filing 1986–2025
99Inventor score
Top patents by PatentIndex Score
95 records- 0195USD701195SEarphoneSONY CORP·Filed 2012·Granted Mar 18, 2014·65 cites·1 claims
- 0294USD1008209SSpeakerSONY GROUP CORP·Filed 2021·Granted Dec 19, 2023·17 cites·1 claims
- 0393US7540318B2Heat sinkFUJITSU LTD·Filed 2006·Granted Jun 2, 2009·35 cites·10 claims
- 0492US5218436AProcessing circuit for a plurality of different TV signalsHITACHI LTD·Filed 1991·Granted Jun 8, 1993·156 cites·17 claims
- 0590US9921002B2Radiator and electronic device having the sameFUJITSU LTD·Filed 2014·Granted Mar 20, 2018·10 cites·6 claims
- 0689US9717161B2Board assembly including cooling system and electronic apparatusFUJITSU LTD·Filed 2015·Granted Jul 25, 2017·7 cites·9 claims
- 0789US8345168B2Digital broadcast receiver unitHITACHI CONSUMER ELECTRONICS·Filed 2011·Granted Jan 1, 2013·6 cites·52 claims
- 0888US6710817B2Decoder device and receiver using the sameHITACHI LTD·Filed 2001·Granted Mar 23, 2004·25 cites·10 claims
- 0987USD669450SHeadphoneKATSUMATA KENJI·Filed 2012·Granted Oct 23, 2012·36 cites·1 claims
- 1085US5760820ADigital signal transmission system with priority information forcing display of text on a receiverHITACHI LTD·Filed 1996·Granted Jun 2, 1998·100 cites·4 claims
- 1184USD695261SHeadphoneKATSUMATA KENJI·Filed 2012·Granted Dec 10, 2013·31 cites·1 claims
- 1283US9696094B2Cooling unitAOKI MICHIMASA·Filed 2012·Granted Jul 4, 2017·8 cites·4 claims
- 1383US6687305B1Receiver, CPU and decoder for digital broadcastHITACHI LTD·Filed 2000·Granted Feb 3, 2004·21 cites·15 claims
- 1483US5534934ATelevision receiver capable of enlarging and compressing imageHITACHI LTD·Filed 1994·Granted Jul 9, 1996·64 cites·6 claims
- 1582US7889281B2Digital broadcast receiver unitHITACHI CONSUMER ELECTRONICS·Filed 2008·Granted Feb 15, 2011·4 cites·17 claims
- 1682US6185228B1Receiving apparatus for digital broadcasting signal and receiving/recording/reproducing apparatus thereofHITACHI LTD·Filed 1997·Granted Feb 6, 2001·48 cites·33 claims
- 1781US7643089B2Decoder device and receiver using the sameHITACHI LTD·Filed 2008·Granted Jan 5, 2010·4 cites·12 claims
- 1881US5343238AWide-screen television receiver with aspect ratio conversion function and method of displaying a range to be magnified and displayedHITACHI LTD·Filed 1992·Granted Aug 30, 1994·61 cites·22 claims
- 1980US7173674B2Digital broadcast receiver unitHITACHI LTD·Filed 2003·Granted Feb 6, 2007·11 cites·14 claims
- 2079US8605437B2Cooling apparatus and electronic equipmentWEI JIE·Filed 2011·Granted Dec 10, 2013·6 cites·15 claims
- 2179US7436458B2Digital broadcast receiver unitHITACHI LTD·Filed 2004·Granted Oct 14, 2008·10 cites·34 claims
- 2279US6813283B2Receiving apparatus for digital broadcasting signal and receiving/recording/reproducing apparatus thereofHITACHI LTD·Filed 2001·Granted Nov 2, 2004·11 cites·22 claims
- 2379US6549243B1Digital broadcast receiver unitHITACHI LTD·Filed 1998·Granted Apr 15, 2003·39 cites·27 claims
- 2479US4754322AYC-signal separation circuit responsive to magnitude of vertical correlationHITACHI LTD·Filed 1986·Granted Jun 28, 1988·36 cites·9 claims
- 2578US6826202B2Receiving apparatus for digital broadcasting signal and receiving/recording/reproducing apparatus thereofHITACHI LTD·Filed 2002·Granted Nov 30, 2004·10 cites·26 claims
- 2678US4733300AContour signal correction circuit for television receiverHITACHI LTD·Filed 1986·Granted Mar 22, 1988·36 cites·3 claims
- 2777US9406586B2Cooling jacket and electronic device having the sameSUZUKI MASUMI·Filed 2011·Granted Aug 2, 2016·4 cites·7 claims
- 2877US8634416B2Receiving apparatus for digital broadcasting signal and receiving/recording/reproducing apparatus thereofTAKASHIMIZU SATORU·Filed 2011·Granted Jan 21, 2014·2 cites·6 claims
- 2976USD1061480SSpeakerSONY GROUP CORP·Filed 2022·Granted Feb 11, 2025·4 cites·1 claims
- 3076US7375761B2Receiver having motion picture data decoderHITACHI LTD·Filed 2004·Granted May 20, 2008·9 cites·11 claims
- 3176USD540782SSpeaker boxSONY CORP·Filed 2006·Granted Apr 17, 2007·21 cites·1 claims
- 3276US4853765ASequential scanning converter with frame comb filter and freeze frame featureHITACHI LTD·Filed 1988·Granted Aug 1, 1989·30 cites·5 claims
- 3375US7974316B2Receiving apparatus for digital broadcasting signal and receiving/recording/reproducing apparatus thereofHITACHI CONSUMER ELECTRONICS·Filed 2007·Granted Jul 5, 2011·2 cites·34 claims
- 3475US5243421ASignal processor for a wide televison receiverHITACHI LTD·Filed 1991·Granted Sep 7, 1993·40 cites·6 claims
- 3574US6310654B1Decoder device and receiver using the sameHITACHI LTD·Filed 1999·Granted Oct 30, 2001·32 cites·3 claims
- 3673USD664113SHeadphoneKATSUMATA KENJI·Filed 2011·Granted Jul 24, 2012·19 cites·1 claims
- 3773US5774548ADigital broadcast transmitting and receiving system and transmitting and receiving apparatus thereofHITACHI LTD·Filed 1996·Granted Jun 30, 1998·52 cites·21 claims
- 3873US4794454AMovement detection circuit of a video signal used in a television receiverHITACHI LTD·Filed 1987·Granted Dec 27, 1988·28 cites·20 claims
- 3972US5353065AApparatus for receiving wide/standard picture plane television signalHITACHI LTD·Filed 1992·Granted Oct 4, 1994·34 cites·12 claims
- 4072US4733297AVideo signal processing circuit of motion adaptive typeHITACHI LTD·Filed 1987·Granted Mar 22, 1988·26 cites·15 claims
- 4170US6452638B1Decoder device and receiver using the sameHITACHI LTD·Filed 2001·Granted Sep 17, 2002·6 cites·8 claims
- 4269US10537043B2Electronic apparatusFUJITSU LTD·Filed 2018·Granted Jan 14, 2020·1 cites·19 claims
- 4369US5276515ACompatible wide aspect ratio receiver with spatial filtering for variable zoomHITACHI LTD·Filed 1992·Granted Jan 4, 1994·33 cites·15 claims
- 4468US7283570B2Receiving apparatus for digital broadcasting signal and receiving/recording/reproducing apparatus thereofHITACHI LTD·Filed 2003·Granted Oct 16, 2007·4 cites·28 claims
- 4566US9532101B2Digital broadcast receiver unitHITACHI MAXELL·Filed 2014·Granted Dec 27, 2016·0 cites·10 claims
- 4664US6504826B1Digital broadcasting receiverHITACHI LTD·Filed 1999·Granted Jan 7, 2003·24 cites·20 claims
- 4763US7123631B2Receiving apparatus for digital broadcasting signal and receiving/recording/reproducing apparatus thereofHITACHI LTD·Filed 2001·Granted Oct 17, 2006·3 cites·33 claims
- 4863US5029006AVideo signal processing circuit capable of enlarging and displaying a pictureHITACHI LTD·Filed 1989·Granted Jul 2, 1991·18 cites·5 claims
- 4962USD823278SHeadphoneSONY CORP·Filed 2013·Granted Jul 17, 2018·12 cites·1 claims
- 5062US5703658AVideo decoder/converter with a programmable logic device which is programmed based on the encoding formatHITACHI LTD·Filed 1996·Granted Dec 30, 1997·29 cites·3 claims
Showing the top 50 of 95 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →