Inventor · disambiguated record
Kunimasa Takahashi
Also filed as: TAKAHASHI KUNIMASA
49 granted patents·3 pending applications·1,059 citations·filing 1979–2025
98Inventor score
Files withMATSUSHITA ELECTRIC INDUSTRIAL CO LTD23PANASONIC CORP13MITSUBISHI PETROCHEMICAL CO7NUVOTON TECHNOLOGY CORP JAPAN3TAKAHASHI KUNIMASA2
Top patents by PatentIndex Score
52 records- 0196US7507999B2Semiconductor device and method for manufacturing samePANASONIC CORP·Filed 2003·Granted Mar 24, 2009·133 cites·12 claims
- 0296US6228720B1Method for making insulated-gate semiconductor elementMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted May 8, 2001·120 cites·11 claims
- 0395US6995397B2Semiconductor deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Feb 7, 2006·114 cites·26 claims
- 0494US6306211B1Method for growing semiconductor film and method for fabricating semiconductor deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Oct 23, 2001·84 cites·14 claims
- 0590US7671409B2Wide gap semiconductor power device with temperature independent resistivity due to channel region resistivity having negative temperature dependencePANASONIC CORP·Filed 2005·Granted Mar 2, 2010·18 cites·8 claims
- 0689US6989553B2Semiconductor device having an active region of alternating layersMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Jan 24, 2006·44 cites·9 claims
- 0788US2025331336A1Semiconductor light-emitting deviceNUVOTON TECHNOLOGY CORP JAPAN·Filed 2025·Application pending·0 cites
- 0886US6617653B1MisfetMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Sep 9, 2003·30 cites·28 claims
- 0985US8686439B2Silicon carbide semiconductor elementTAKAHASHI KUNIMASA·Filed 2012·Granted Apr 1, 2014·8 cites·8 claims
- 1084US6690035B1Semiconductor device having an active region of alternating layersMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Feb 10, 2004·30 cites·4 claims
- 1184US6654604B2Equipment for communication systemMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Nov 25, 2003·28 cites·17 claims
- 1282US7718519B2Method for manufacturing silicon carbide semiconductor elementPANASONIC CORP·Filed 2008·Granted May 18, 2010·7 cites·10 claims
- 1382US7473929B2Semiconductor device and method for fabricating the samePANASONIC CORP·Filed 2004·Granted Jan 6, 2009·23 cites·13 claims
- 1481US7462540B2Silicon carbide semiconductor device and process for producing the samePANASONIC CORP·Filed 2005·Granted Dec 9, 2008·7 cites·9 claims
- 1581US6995396B2Semiconductor substrate, semiconductor device and method for fabricating the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Feb 7, 2006·25 cites·11 claims
- 1679US6270573B1Silicon carbide substrate, and method for producing the substrate, and semiconductor device utilizing the substrateMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1998·Granted Aug 7, 2001·42 cites·40 claims
- 1779US4929404AGraphitic or carbonaceous moldings and processes for producing the sameMITSUBISHI PETROCHEMICAL CO·Filed 1988·Granted May 29, 1990·43 cites·31 claims
- 1879US4528087AProcess for producing mesophase pitchMITSUBISHI PETROCHEMICAL CO·Filed 1983·Granted Jul 9, 1985·22 cites·8 claims
- 1977US9018699B2Silicon carbide semiconductor element and method for fabricating the sameKIYOSAWA TSUTOMU·Filed 2012·Granted Apr 28, 2015·6 cites·13 claims
- 2077US7230273B2Semiconductor device with a plurality of semiconductor elements each including a wide band-gap semiconductorMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Jun 12, 2007·24 cites·9 claims
- 2177US6864507B2MisfetMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Mar 8, 2005·17 cites·30 claims
- 2277US6674131B2Semiconductor power device for high-temperature applicationsMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Jan 6, 2004·23 cites·4 claims
- 2376US8866127B2Nitride semiconductor light-emitting element including Si-doped layer, and light sourcePANASONIC CORP·Filed 2013·Granted Oct 21, 2014·3 cites·20 claims
- 2476US4985184AProduction of carbonaceous powders and their granulationMITSUBISHI PETROCHEMICAL CO·Filed 1988·Granted Jan 15, 1991·30 cites·5 claims
- 2576US4341912AProcess for producing alkenyl-substituted aromatic compounds and catalyst thereforMITSUBISHI PETROCHEMICAL CO·Filed 1979·Granted Jul 27, 1982·10 cites·18 claims
- 2675US6580125B2Semiconductor device and method for fabricating the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Jun 17, 2003·18 cites·8 claims
- 2773US6940110B2SiC-MISFET and method for fabricating the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Sep 6, 2005·18 cites·10 claims
- 2872US7381993B2High-breakdown-voltage insulated gate semiconductor deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2007·Granted Jun 3, 2008·4 cites·14 claims
- 2972US4263457AProcess for producing biphenyl derivativesMITSUBISHI PETROCHEMICAL CO·Filed 1979·Granted Apr 21, 1981·20 cites·8 claims
- 3070US12408489B2Semiconductor light-emitting deviceNUVOTON TECHNOLOGY CORP JAPAN·Filed 2021·Granted Sep 2, 2025·0 cites·23 claims
- 3170US9147804B2Nitride semiconductor light-emitting element and light source including the nitride semiconductor light-emitting elementPANASONIC CORP·Filed 2013·Granted Sep 29, 2015·2 cites·13 claims
- 3270US6600203B2Semiconductor device with silicon carbide suppression layer for preventing extension of micropipeMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Jul 29, 2003·12 cites·3 claims
- 3369US8748901B1Silicon carbide semiconductor elementPANASONIC CORP·Filed 2014·Granted Jun 10, 2014·2 cites·9 claims
- 3469US7217954B2Silicon carbide semiconductor device and method for fabricating the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted May 15, 2007·11 cites·14 claims
- 3569US6940127B2Equipment for communication system and semiconductor integrated circuit deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Sep 6, 2005·12 cites·7 claims
- 3668US7436031B2Device for implementing an inverter having a reduced sizeMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Granted Oct 14, 2008·4 cites·14 claims
- 3767US6504176B2Field effect transistor and method of manufacturing the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Jan 7, 2003·13 cites·8 claims
- 3865US4596652AProcess for producing mesophase pitchMITSUBISHI PETROCHEMICAL CO·Filed 1984·Granted Jun 24, 1986·12 cites·16 claims
- 3965US4239928AProcess for preparing alkyl-substituted aromatic compoundsMITSUBISHI PETROCHEMICAL CO·Filed 1979·Granted Dec 16, 1980·6 cites·10 claims
- 4064US7709403B2Silicon carbide-oxide layered structure, production method thereof, and semiconductor devicePANASONIC CORP·Filed 2004·Granted May 4, 2010·11 cites·3 claims
- 4163US7846828B2Semiconductor device and method for fabricating the samePANASONIC CORP·Filed 2008·Granted Dec 7, 2010·1 cites·5 claims
- 4261US7772098B2Method for manufacturing semiconductor devicePANASONIC CORP·Filed 2008·Granted Aug 10, 2010·2 cites·10 claims
- 4360US12438342B2Semiconductor light-emitting element and method of fabricating semiconductor light-emitting elementNUVOTON TECHNOLOGY CORP JAPAN·Filed 2022·Granted Oct 7, 2025·0 cites·26 claims
- 4458US7786565B2Semiconductor apparatus including power semiconductor device constructed by using wide band gap semiconductorPANASONIC CORP·Filed 2004·Granted Aug 31, 2010·8 cites·10 claims
- 4557US8476733B2Semiconductor element and manufacturing method thereforTAKAHASHI KUNIMASA·Filed 2010·Granted Jul 2, 2013·1 cites·10 claims
- 4655US6900483B2Semiconductor device and method for manufacturing the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted May 31, 2005·6 cites·25 claims
- 4752US11070028B2Semiconductor light emitting elementPANASONIC SEMICONDUCTOR SOLUTIONS CO LTD·Filed 2020·Granted Jul 20, 2021·0 cites·20 claims
- 4849US7214984B2High-breakdown-voltage insulated gate semiconductor deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted May 8, 2007·3 cites·17 claims
- 4945US8399962B2Semiconductor chip and process for production thereofHAYASHI MASASHI·Filed 2011·Granted Mar 19, 2013·0 cites·27 claims
- 5045US7816688B2Semiconductor device and production method thereforPANASONIC CORP·Filed 2002·Granted Oct 19, 2010·2 cites·9 claims
Showing the top 50 of 52 patent records by PatentIndex Score.
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