Inventor · disambiguated record
Masahiko Ito
Also filed as: ITO MASAHIKO · ITO MASAHIRO
118 granted patents·25 pending applications·2,810 citations·filing 1975–2025
99Inventor score
Top patents by PatentIndex Score
143 records- 0196US6437792B1Image processing apparatus and method, color gamut conversion table creating apparatus and method, storage medium having image processing program recorded therein, and storage medium having recorded therein color gamut conversion table creating programSONY CORP·Filed 2000·Granted Aug 20, 2002·109 cites·16 claims
- 0295US9518322B2Film formation apparatus and film formation methodNUFLARE TECHNOLOGY INC·Filed 2014·Granted Dec 13, 2016·11 cites·12 claims
- 0394US9873941B2Film-forming manufacturing apparatus and methodNUFLARE TECHNOLOGY INC·Filed 2015·Granted Jan 23, 2018·5 cites·4 claims
- 0494US5708725AWireless headphone with a spring-biased activating power switchSONY CORP·Filed 1996·Granted Jan 13, 1998·171 cites·10 claims
- 0593US7306839B2Molded weather stripTOYODA GOSEI KK·Filed 2006·Granted Dec 11, 2007·18 cites·5 claims
- 0692US8724286B2Ionizer having cleaning systemUCHIDA HIDEKI·Filed 2008·Granted May 13, 2014·22 cites·7 claims
- 0792US6747399B1Pressure-sensitive sensor, object detecting device, and opening-closing deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Jun 8, 2004·40 cites·27 claims
- 0892US6144347AHead-mounted image display apparatusSONY CORP·Filed 1998·Granted Nov 7, 2000·114 cites·19 claims
- 0992US5636071ASpeed reduction device for an electrically powered foldable rearview mirrorMURAKAMI KAIMEIDO KK·Filed 1995·Granted Jun 3, 1997·78 cites·5 claims
- 1092US5031220AMobile stereo speaker setPIONEER ELECTRONIC CORP·Filed 1989·Granted Jul 9, 1991·76 cites·10 claims
- 1192US5018205AAutomatic sound level compensator for a sound reproduction device mounted in a vehiclePIONEER ELECTRONIC CORP·Filed 1990·Granted May 21, 1991·84 cites·7 claims
- 1291US5449162ASheet feeding device with adjustable feeding and inversely-rotating rollersCANON KK·Filed 1993·Granted Sep 12, 1995·54 cites·35 claims
- 1390US6608562B1Vital signal detecting apparatusDENSO CORP·Filed 2000·Granted Aug 19, 2003·331 cites·13 claims
- 1489US6418737B1Heat pump type hot-water supply system capable of performing defrosting operationDENSO CORP·Filed 2000·Granted Jul 16, 2002·53 cites·13 claims
- 1589US5933253AColor area compression method and apparatusSONY CORP·Filed 1996·Granted Aug 3, 1999·120 cites·10 claims
- 1688US9598792B2Film-forming apparatus and film-forming methodSUZUKI KUNIHIKO·Filed 2012·Granted Mar 21, 2017·3 cites·15 claims
- 1788US7183733B2Opening and closing member control apparatusTOYOTA MOTOR CO LTD·Filed 2006·Granted Feb 27, 2007·18 cites·20 claims
- 1888US6522237B1Electrode for PTC thermistor and method for producing the same, and PTC thermistorMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted Feb 18, 2003·57 cites·8 claims
- 1988US5131648AImage recording apparatus inhibiting recording of abnormally-fed sheetsCANON KK·Filed 1989·Granted Jul 21, 1992·34 cites·12 claims
- 2086US11506718B2Battery monitoring deviceDENSO CORP·Filed 2019·Granted Nov 22, 2022·2 cites·11 claims
- 2186US8815711B2Manufacturing apparatus and method for semiconductor device and cleaning method of manufacturing apparatus for semiconductorSUZUKI KUNIHIKO·Filed 2011·Granted Aug 26, 2014·7 cites·20 claims
- 2286US6084555ASpectacle type display deviceSONY CORP·Filed 1994·Granted Jul 4, 2000·87 cites·17 claims
- 2385US6388674B1Gamut mapping method and apparatusSONY CORP·Filed 1999·Granted May 14, 2002·87 cites·17 claims
- 2485US5422310AMethod of forming interconnection in semiconductor deviceSONY CORP·Filed 1994·Granted Jun 6, 1995·89 cites·4 claims
- 2585US5138665AAudio reproduction systemPIONEER ELECTRONIC CORP·Filed 1990·Granted Aug 11, 1992·49 cites·19 claims
- 2684US7717394B2Vehicle interior accessory retainerMURAKAMI CORP·Filed 2007·Granted May 18, 2010·17 cites·8 claims
- 2784USD430017SCaseSONY CORP·Filed 1999·Granted Aug 29, 2000·28 cites·1 claims
- 2883US7557230B2Latent curing agentSONY CORP·Filed 2006·Granted Jul 7, 2009·5 cites·24 claims
- 2983US6215460B1Head-mounted image display apparatusSONY CORP·Filed 1994·Granted Apr 10, 2001·65 cites·28 claims
- 3081US6494051B2Hot water supply systemDENSO CORP·Filed 2001·Granted Dec 17, 2002·29 cites·8 claims
- 3181USD429635SCaseSONY CORP·Filed 1999·Granted Aug 22, 2000·24 cites·1 claims
- 3280US8919874B2Vehicle seat componentTOYOTA BOSHOKU KK·Filed 2012·Granted Dec 30, 2014·12 cites·6 claims
- 3380US6370896B1Hot water supply systemDENSO CORP·Filed 1999·Granted Apr 16, 2002·40 cites·13 claims
- 3480US5947297APackaging caseSIGMA P I CO LTD·Filed 1998·Granted Sep 7, 1999·66 cites·10 claims
- 3580US4541154AHooked fabric fastener tapeYOSHIDA KOGYO KK·Filed 1983·Granted Sep 17, 1985·36 cites·5 claims
- 3679US7814704B2Method for controlling door and door control system for vehicleAISIN SEIKI·Filed 2006·Granted Oct 19, 2010·12 cites·16 claims
- 3779US5046133AInterference cancellation circuitNIPPON TELEGRAPH & TELEPHONE·Filed 1989·Granted Sep 3, 1991·76 cites·16 claims
- 3879US2025293510A1Power supply circuitDENSO CORP·Filed 2025·Application pending·0 cites
- 3978US9560791B2Method of manufacturing heat conductive sheet, heat conductive sheet, and heat dissipation memberDEXERIALS CORP·Filed 2014·Granted Jan 31, 2017·2 cites·5 claims
- 4078US6271621B1Piezoelectric pressure sensorMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted Aug 7, 2001·54 cites·17 claims
- 4176US10262863B2Method for manufacturing SiC epitaxial wafer by simultaneously utilizing an N-based gas and a CI-based gas, and SiC epitaxial growth apparatusSHOWA DENKO KK·Filed 2015·Granted Apr 16, 2019·2 cites·9 claims
- 4275US11718841B2Method for producing galactooligosaccharideYAKULT HONSHA KK·Filed 2021·Granted Aug 8, 2023·0 cites·11 claims
- 4375US9730883B2Prophylactic or therapeutic agent for oral diseasesOKUMURA TAKEKAZU·Filed 2012·Granted Aug 15, 2017·5 cites·22 claims
- 4474US7582243B2Method for manufacturing weather strip and molding device for weather stripTOYODA GOSEI KK·Filed 2004·Granted Sep 1, 2009·10 cites·4 claims
- 4573US11866354B2Extract of plant powder, and water purifierDEXERIALS CORP·Filed 2021·Granted Jan 9, 2024·0 cites·6 claims
- 4673US4001035AColoring compositionDAINICHISEIKA COLOR CHEM·Filed 1975·Granted Jan 4, 1977·26 cites·12 claims
- 4772US7174790B2Pressure-sensitive sensor, object detecting device, and opening-closing deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Granted Feb 13, 2007·5 cites·21 claims
- 4871US9437521B2Thermally conductive sheetDEXERIALS CORP·Filed 2016·Granted Sep 6, 2016·2 cites·19 claims
- 4971US7285939B2DC-DC converter for boosting input voltage at variable frequencyDENSO CORP·Filed 2005·Granted Oct 23, 2007·10 cites·14 claims
- 5071US2024097219A1Battery systemDENSO CORP·Filed 2023·Application pending·0 cites
Showing the top 50 of 143 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →