Inventor · disambiguated record
Naoki Yokoyama
Also filed as: YOKOYAMA NAOKI
74 granted patents·12 pending applications·953 citations·filing 1983–2025
99Inventor score
Top patents by PatentIndex Score
86 records- 0194US12344075B2Battery heating device for vehicleDENSO CORP·Filed 2021·Granted Jul 1, 2025·3 cites·17 claims
- 0294US4609903AThin film resistor for an integrated circuit semiconductor deviceFUJITSU LTD·Filed 1984·Granted Sep 2, 1986·84 cites·9 claims
- 0390US11802175B2Epoxy resin modified with polyurethane in low concentration, production method therefor, epoxy resin composition, and cured objectNIPPON STEEL CHEMICAL & MAT CO LTD·Filed 2019·Granted Oct 31, 2023·2 cites·5 claims
- 0489US7290388B2Motorcycle exhaust systemKAWASAKI HEAVY IND LTD·Filed 2005·Granted Nov 6, 2007·17 cites·17 claims
- 0588US4903090ASemiconductor deviceFUJITSU LTD·Filed 1988·Granted Feb 20, 1990·54 cites·10 claims
- 0686US8978411B2Cold-storage heat exchangerYAMADA ATSUSHI·Filed 2010·Granted Mar 17, 2015·4 cites·22 claims
- 0785US11325383B2Liquid collecting device, liquid ejecting apparatus, and method for controlling liquid ejecting apparatusSEIKO EPSON CORP·Filed 2020·Granted May 10, 2022·1 cites·13 claims
- 0885US7458210B2Vehicle exhaust apparatus and motorcycle equipped therewithKAWASAKI HEAVY IND LTD·Filed 2006·Granted Dec 2, 2008·12 cites·4 claims
- 0985US4889831AMethod of forming a high temperature stable ohmic contact to a III-V substrateFUJITSU LTD·Filed 1987·Granted Dec 26, 1989·50 cites·9 claims
- 1084US6775998B2Freezer and refrigerator provided with freezerMATSUSHITA REFRIGERATION·Filed 2001·Granted Aug 17, 2004·65 cites·17 claims
- 1181US4821090ACompound semiconductor integrated circuit deviceFUJITSU LTD·Filed 1987·Granted Apr 11, 1989·39 cites·20 claims
- 1281US4712121AHigh-speed semiconductor deviceFUJITSU LTD·Filed 1985·Granted Dec 8, 1987·39 cites·12 claims
- 1381US4566021ASemiconductor deviceFUJITSU LTD·Filed 1985·Granted Jan 21, 1986·36 cites·14 claims
- 1480US11135577B2Exhaust-gas-purifying metal substrate and exhaust gas purification device using sameCATALER CORP·Filed 2018·Granted Oct 5, 2021·2 cites·8 claims
- 1579US8973395B2Cold-storage heat exchangerDENSO CORP·Filed 2013·Granted Mar 10, 2015·1 cites·13 claims
- 1678US9328811B2Drive plate and manufacturing method for the sameIWATA DAISUKE·Filed 2012·Granted May 3, 2016·2 cites·4 claims
- 1776US7707849B2Unit for ejector type refrigeration cycleDENSO CORP·Filed 2006·Granted May 4, 2010·5 cites·42 claims
- 1876US7320229B2Ejector refrigeration cycleDENSO CORP·Filed 2006·Granted Jan 22, 2008·5 cites·11 claims
- 1976US4617724AProcess for fabricating heterojunction bipolar transistor with low base resistanceFUJITSU LTD·Filed 1985·Granted Oct 21, 1986·44 cites·74 claims
- 2076US2025388075A1Refrigeration cycle deviceDENSO CORP·Filed 2025·Application pending·0 cites
- 2175US8151754B2Air-intake duct and air-intake structureMATSUDA YOSHIHARU·Filed 2009·Granted Apr 10, 2012·7 cites·13 claims
- 2275US5311465ASemiconductor memory device that uses a negative differential resistanceFUJITSU LTD·Filed 1993·Granted May 10, 1994·34 cites·11 claims
- 2374US9032757B2Cold-storage heat exchangerDENSO CORP·Filed 2013·Granted May 19, 2015·1 cites·9 claims
- 2473US9355916B2Semiconductor manufacturing method and semiconductor deviceFUJITSU LTD·Filed 2015·Granted May 31, 2016·2 cites·11 claims
- 2573US5389804AResonant-tunneling heterojunction bipolar transistor deviceFUJITSU LTD·Filed 1993·Granted Feb 14, 1995·24 cites·1 claims
- 2672US8759100B2Method of cell cultureYOKOYAMA NAOKI·Filed 2010·Granted Jun 24, 2014·1 cites·12 claims
- 2772US6947739B2Subscriber wireless access systemHITACHI INT ELECTRIC INC·Filed 2001·Granted Sep 20, 2005·16 cites·16 claims
- 2872US5809231AImage transmission systemKOKUSAI ELECTRIC CO LTD·Filed 1996·Granted Sep 15, 1998·46 cites·20 claims
- 2971US11029073B2Cold-storage heat exchangerDENSO CORP·Filed 2018·Granted Jun 8, 2021·0 cites·11 claims
- 3071US6826166B2Wireless access systemHITACHI INT ELECTRIC INC·Filed 2000·Granted Nov 30, 2004·9 cites·10 claims
- 3170US8116688B2Wireless apparatus, wireless communication system, control method, and control programMATSUMOTO AKIRA·Filed 2008·Granted Feb 14, 2012·9 cites·32 claims
- 3270US6522301B2Above deck unit for automatic identification systemJAPAN RADIO CO LTD·Filed 2001·Granted Feb 18, 2003·32 cites·19 claims
- 3370US5889296ASemiconductor optical device and an optical processing system that uses such a semiconductor optical systemFUJITSU LTD·Filed 1997·Granted Mar 30, 1999·39 cites·13 claims
- 3469US10266637B2Polyurethane-modified epoxy resin, method for producing same, epoxy resin composition and cured productNIPPON STEEL & SUMIKIN CHEM CO·Filed 2015·Granted Apr 23, 2019·1 cites·8 claims
- 3569US8973396B2Cold-storage heat exchangerDENSO CORP·Filed 2013·Granted Mar 10, 2015·0 cites·13 claims
- 3669US5130766AQuantum interference type semiconductor deviceFUJITSU LTD·Filed 1989·Granted Jul 14, 1992·25 cites·20 claims
- 3768US8757950B2Structure of cross-shaped groove of screw for fit with driver bitOGAWA NOBUHIRO·Filed 2009·Granted Jun 24, 2014·4 cites·4 claims
- 3867US6407783B1Liquid crystal display deviceOPTREX KK·Filed 1999·Granted Jun 18, 2002·43 cites·22 claims
- 3966US9372034B2Cool-storage type heat exchangerYOKOYAMA NAOKI·Filed 2009·Granted Jun 21, 2016·1 cites·29 claims
- 4066US4849934ALogic circuit using resonant-tunneling transistorFUJITSU LTD·Filed 1986·Granted Jul 18, 1989·21 cites·25 claims
- 4164US2025121611A1Ink Jet Textile Printing Method And SetSEIKO EPSON CORP·Filed 2024·Application pending·0 cites
- 4262US5536967ASemiconductor device including Schottky gate of silicide and method for the manufacture of the sameFUJITSU LTD·Filed 1994·Granted Jul 16, 1996·20 cites·18 claims
- 4361US10132549B2Cold-storage heat exchangerDENSO CORP·Filed 2015·Granted Nov 20, 2018·0 cites·19 claims
- 4461US5200349ASemiconductor device including schotky gate of silicide and method for the manufacture of the sameFUJITSU LTD·Filed 1988·Granted Apr 6, 1993·18 cites·21 claims
- 4560US11306178B2Epoxy resin composition and cured productNIPPON STEEL CHEMICAL & MAT CO LTD·Filed 2019·Granted Apr 19, 2022·0 cites·12 claims
- 4659US4989052AQuantum effect semiconductor deviceFUJITSU LTD·Filed 1988·Granted Jan 29, 1991·17 cites·18 claims
- 4758US8997354B2Manufacturing method for toothed member, manufacturing device for toothed member, and toothed memberIWATA DAISUKE·Filed 2011·Granted Apr 7, 2015·1 cites·18 claims
- 4858US5003360ASemiconductor functional elementFUJITSU LTD·Filed 1989·Granted Mar 26, 1991·16 cites·23 claims
- 4956US11472185B2Liquid ejecting apparatus and maintenance method for liquid ejecting apparatusSEIKO EPSON CORP·Filed 2021·Granted Oct 18, 2022·0 cites·3 claims
- 5053US11998874B2Metallic base material for exhaust purging, and exhaust purging device using sameCATALER CORP·Filed 2020·Granted Jun 4, 2024·0 cites·15 claims
Showing the top 50 of 86 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →