Inventor · disambiguated record
Hirofumi Kubota
Also filed as: KUBOTA HIROFUMI
67 granted patents·40 pending applications·1,828 citations·filing 1993–2024
99Inventor score
Files withMATSUSHITA ELECTRIC INDUSTRIAL CO LTD24TOYOTA MOTOR CO LTD17PANASONIC IP MAN CO LTD15PIONEER CORP14KUBOTA HIROFUMI8
Top patents by PatentIndex Score
107 records- 0196US6429584B2Organic electroluminescence display panel and method of manufacturing the samePIONEER CORP·Filed 2001·Granted Aug 6, 2002·141 cites·18 claims
- 0295US10337422B2Control apparatus for internal combustion engine, and abnormality diagnosis system for control apparatus for internal combustion engineTOYOTA MOTOR CO LTD·Filed 2017·Granted Jul 2, 2019·11 cites·6 claims
- 0395US6748936B2Exhaust gas recirculation control for internal combustion engine and method of exhaust gas recirculation controlTOYOTA MOTOR CO LTD·Filed 2003·Granted Jun 15, 2004·62 cites·44 claims
- 0495US6440037B2Control system for vehicle having continuously variable transmissionTOYOTA MOTOR CO LTD·Filed 2001·Granted Aug 27, 2002·125 cites·12 claims
- 0594US6771334B2Transflective liquid crystal display deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Aug 3, 2004·59 cites·6 claims
- 0693US6864629B2Organic electroluminescence (EL) cell that prevents moisture from deteriorating light-emitting characteristics and a method for producing the samePIONEER CORP·Filed 2000·Granted Mar 8, 2005·107 cites·18 claims
- 0793US6727965B1Semitransparent liquid crystal display deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Apr 27, 2004·63 cites·8 claims
- 0893US6597424B2OCB liquid crystal display device having pixel protrusionsMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Jul 22, 2003·44 cites·11 claims
- 0992US6888678B2Irregular-shape body, reflection sheet and reflection-type liquid crystal display element, and production method and production device thereforMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted May 3, 2005·53 cites·15 claims
- 1091US8011185B2Boost pressure control apparatus and boost pressure control method of internal combustion engineTOYOTA MOTOR CO LTD·Filed 2006·Granted Sep 6, 2011·18 cites·14 claims
- 1189US6389348B1Control system for vehicle having continuously variable transmissionTOYOTA MOTOR CO LTD·Filed 2000·Granted May 14, 2002·37 cites·20 claims
- 1288US6400430B2Light control element, optical device, and electrical device having lightweight, and method of producing thereofMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted Jun 4, 2002·77 cites·48 claims
- 1387US7960908B2Organic EL displayTOSHIBA MATSUSHITA DISPLAY TEC·Filed 2006·Granted Jun 14, 2011·11 cites·6 claims
- 1486US6486932B1Light control element, optical device, and electrical device, and method of producing thereofMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Nov 26, 2002·26 cites·18 claims
- 1585US6671009B1Liquid crystal display with method for OCB splay-bend transitionMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted Dec 30, 2003·53 cites·7 claims
- 1685US6429914B1Polymer dispersion type liquid crystal display panel and its manufacturing methodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1998·Granted Aug 6, 2002·71 cites·46 claims
- 1785US6401022B2Vehicle drive power control apparatus, and control methodTOYOTA MOTOR CO LTD·Filed 2001·Granted Jun 4, 2002·25 cites·19 claims
- 1885US6128056ALiquid crystal display element in which the polymer liquid crystal composite layer is divided into an active area and a non-active area and method of manufacturing the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1998·Granted Oct 3, 2000·82 cites·31 claims
- 1984US11300023B2Exhaust gas purification system for internal combustion engineTOYOTA MOTOR CO LTD·Filed 2021·Granted Apr 12, 2022·1 cites·5 claims
- 2084US6368680B1Macromolecular dispersion type liquid crystal display element and method of manufacturing the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Apr 9, 2002·19 cites·31 claims
- 2182US9583731B2Organic electroluminescence elementPANASONIC IP MAN CO LTD·Filed 2013·Granted Feb 28, 2017·5 cites·10 claims
- 2281US6551667B2Macromolecular dispersion type liquid crystal display element and method of manufacturing the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Apr 22, 2003·15 cites·5 claims
- 2380US8357997B2Organic EL device and manufacturing method thereofJAPAN DISPLAY CENTRAL INC·Filed 2010·Granted Jan 22, 2013·4 cites·10 claims
- 2480US6066070AControl system of vehicle having continuously variable transmissionTOYOTA MOTOR CO LTD·Filed 1999·Granted May 23, 2000·64 cites·24 claims
- 2579US6452650B1Polymer dispersion type liquid crystal display element, producing method therefor and apparatus for use in the producing methodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Sep 17, 2002·52 cites·11 claims
- 2678US6605372B1Organic electroluminescent element and method of repairing the samePIONEER CORP·Filed 2000·Granted Aug 12, 2003·25 cites·7 claims
- 2778US6297589B1Organic electroluminescence full color display panel and method of manufacturing the samePIONEER CORP·Filed 1999·Granted Oct 2, 2001·42 cites·21 claims
- 2878US5398127AActive matrix twisted nematic liquid crystal display with rubbing direction 1-44 degrees to the electrodesMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted Mar 14, 1995·51 cites·16 claims
- 2977US7375463B2Optical device and organic EL displayTOSHIBA KK·Filed 2005·Granted May 20, 2008·5 cites·15 claims
- 3077US6950172B2Liquid crystal display with method for OCB splay-bend transitionMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Sep 27, 2005·12 cites·5 claims
- 3177US6836306B2Transflective liquid crystal display deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Dec 28, 2004·15 cites·23 claims
- 3276US11885515B2Air conditioning system to calculate indoor air quality index to control air ventilationPANASONIC IP MAN CO LTD·Filed 2020·Granted Jan 30, 2024·1 cites·10 claims
- 3376US6630969B2Polymer dispersion type liquid crystal display panel and manufacturing method thereofMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Oct 7, 2003·14 cites·16 claims
- 3475US10830167B2Exhaust gas purification system for an internal combustion engineTOYOTA MOTOR CO LTD·Filed 2018·Granted Nov 10, 2020·2 cites·8 claims
- 3575US7614229B2Control system for supercharged internal combustion engineTOYOTA MOTOR CO LTD·Filed 2006·Granted Nov 10, 2009·6 cites·12 claims
- 3675US7142259B2Liquid crystal display with method for OCB splay-bend transitionMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Nov 28, 2006·11 cites·11 claims
- 3774US6529252B2Polymer dispersion type liquid crystal display element, producing method therefor and apparatus for use in the producing methodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Mar 4, 2003·13 cites·21 claims
- 3874US5581396AWavelength converting device having an epitaxial waveguide layerPIONEER ELECTRONIC CORP·Filed 1995·Granted Dec 3, 1996·48 cites·5 claims
- 3973US6222315B1Luminescent display panel with insulating filmsPIONEER ELECTRONIC CORP·Filed 1998·Granted Apr 24, 2001·99 cites·3 claims
- 4071US10563599B2Control system for turbocharged internal combustion engineTOYOTA MOTOR CO LTD·Filed 2017·Granted Feb 18, 2020·1 cites·4 claims
- 4171US7402939B2Organic EL displayTOSHIBA MATSUSHITA DISPLAY TEC·Filed 2005·Granted Jul 22, 2008·3 cites·16 claims
- 4271US5962970AOrganic electroluminescent display panel including bonding pads arranged at a periphery of an image regionPIONEER ELECTRONIC CORP·Filed 1996·Granted Oct 5, 1999·99 cites·4 claims
- 4370US9105857B2Organic electroluminescent element, lighting fixture, and food storage deviceKUBOTA HIROFUMI·Filed 2012·Granted Aug 11, 2015·4 cites·20 claims
- 4468US6365239B1Macromolecular dispersion type liquid crystal display element and method of manufacturing the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Apr 2, 2002·7 cites·39 claims
- 4567US7431624B2Method of manufacturing organic EL elementTOSHIBA MATSUSHITA DISPLAY TEC·Filed 2005·Granted Oct 7, 2008·2 cites·20 claims
- 4667US6221443B1Macromolecular dispersion type liquid crystal display element and method of manufacturing the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted Apr 24, 2001·24 cites·54 claims
- 4765US6771331B1Lighting device and liquid crystal displayMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Aug 3, 2004·9 cites·14 claims
- 4865US6355315B1Macromolecular dispersion type liquid crystal display element and method of manufacturing the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Mar 12, 2002·6 cites·7 claims
- 4965US2023070454A1Acetic acid-containing beverageASAHI GROUP HOLDINGS LTD·Filed 2021·Application pending·0 cites
- 5064US7573193B2Optical device and organic EL displayTOSHIBA MATSUSHITA DISPLAY TEC·Filed 2005·Granted Aug 11, 2009·2 cites·21 claims
Showing the top 50 of 107 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →