Inventor · disambiguated record
Hirokazu Yamada
Also filed as: YAMADA HIROKAZU
100 granted patents·9 pending applications·1,705 citations·filing 1985–2018
99Inventor score
Files withDENSO CORP21MINOLTA CAMERA KK17TOSHIBA LIGHTING & TECHNOLOGY12SHINETSU CHEMICAL CO8MINOLTA CO LTD7
Top patents by PatentIndex Score
109 records- 0194US6869581B2Hollow graphene sheet structure, electrode structure, process for the production thereof, and device thus producedFUJI XEROX CO LTD·Filed 2002·Granted Mar 22, 2005·54 cites·20 claims
- 0291US9071767B2Omnidirectional cameraSASAGAWA JUN·Filed 2012·Granted Jun 30, 2015·12 cites·8 claims
- 0391US8814396B2Lighting apparatusISHIDA TOSHIYUKI·Filed 2011·Granted Aug 26, 2014·17 cites·3 claims
- 0491USD662643SLighting fixtureTAKAHASHI AKIMICHI·Filed 2011·Granted Jun 26, 2012·54 cites·1 claims
- 0590US8885016B2Omnidirectional camera and lens hoodSASAGAWA JUN·Filed 2012·Granted Nov 11, 2014·10 cites·4 claims
- 0690US6094282ACamera capable of recording and reproducing a photographed imageMINOLTA CO LTD·Filed 1993·Granted Jul 25, 2000·110 cites·41 claims
- 0790US5224157AManagement system for managing maintenance information of image forming apparatusMINOLTA CAMERA KK·Filed 1990·Granted Jun 29, 1993·185 cites·41 claims
- 0890US4884103AProgrammed control device for copying machines and the likeMINOLTA CAMERA KK·Filed 1987·Granted Nov 28, 1989·37 cites·7 claims
- 0989USD647241SLighting fixtureTOSHIBA LIGHTING & TECHNOLOGY·Filed 2011·Granted Oct 18, 2011·43 cites·1 claims
- 1089US7173373B2Organic light emitting device, manufacturing method thereof, and display unitSONY CORP·Filed 2004·Granted Feb 6, 2007·52 cites·8 claims
- 1188USD723166SStentKYOTO MEDICAL PLANNING CO LTD·Filed 2014·Granted Feb 24, 2015·49 cites·1 claims
- 1288US5102647AMethod of producing vapor growth carbon fibersSHOWA DENKO KK·Filed 1990·Granted Apr 7, 1992·65 cites·9 claims
- 1385US6688157B2Gas sensor having pre-stressed terminal for contact with inserted sensor elementDENSO CORP·Filed 2002·Granted Feb 10, 2004·24 cites·14 claims
- 1485US5171489AMethod of producing composite staple fibers consisting of resin matrix and fine inorganic fibersSHOWA DENKO KK·Filed 1989·Granted Dec 15, 1992·35 cites·7 claims
- 1584US7597602B2Organic light emitting device, manufacturing method thereof, and display unitSONY CORP·Filed 2006·Granted Oct 6, 2009·7 cites·10 claims
- 1684US6603126B2UV/fluorescence detecting apparatus and sensing method thereofGLORY KOGYO KK·Filed 2001·Granted Aug 5, 2003·51 cites·12 claims
- 1784US4814825AMultiple speed sheet inverting and dischargeMINOLTA CAMERA KK·Filed 1987·Granted Mar 21, 1989·28 cites·12 claims
- 1883US5212446AMagneto-optical element and magnetic field measurement apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1992·Granted May 18, 1993·37 cites·11 claims
- 1981US6898961B2Compact structure of gas sensor and production method thereofDENSO CORP·Filed 2002·Granted May 31, 2005·15 cites·12 claims
- 2081US6807907B2Printing system for carrying out energy conservation operationMINOLTA CO LTD·Filed 2002·Granted Oct 26, 2004·31 cites·23 claims
- 2180US6934049B1Data processing apparatusMINOLTA CO LTD·Filed 2000·Granted Aug 23, 2005·18 cites·12 claims
- 2279US10451583B2Gas sensorDENSO CORP·Filed 2015·Granted Oct 22, 2019·2 cites·7 claims
- 2378US5087720APolysilethylenesiloxaneSHINETSU CHEMICAL CO·Filed 1991·Granted Feb 11, 1992·23 cites·9 claims
- 2477US8511862B2Optical unit and lighting apparatusISHIDA TOSHIYUKI·Filed 2011·Granted Aug 20, 2013·6 cites·4 claims
- 2577USD675771SFloodlightTOSHIBA LIGHTING & TECHNOLOGY·Filed 2012·Granted Feb 5, 2013·21 cites·1 claims
- 2677US7291436B2Electrophotographic toner, method for producing the same, electrophotographic developer, and image forming methodFUJI XEROX CO LTD·Filed 2004·Granted Nov 6, 2007·15 cites·19 claims
- 2777US6665067B2Laser beam detecting device for a construction machineTOPCON CORP·Filed 2002·Granted Dec 16, 2003·24 cites·13 claims
- 2877US6340809B2Gas sensor with ceramic heaterDENSO CORP·Filed 2001·Granted Jan 22, 2002·11 cites·3 claims
- 2976US9544476B2Omnidirectional cameraKK TOPCON·Filed 2013·Granted Jan 10, 2017·3 cites·5 claims
- 3076US5762771AAir-fuel ratio sensorDENSO CORP·Filed 1997·Granted Jun 9, 1998·49 cites·18 claims
- 3174US8934019B2Omnidirectional cameraSASAGAWA JUN·Filed 2012·Granted Jan 13, 2015·2 cites·3 claims
- 3272USD640815SSpotlightTOSHIBA LIGHTING & TECHNOLOGY·Filed 2010·Granted Jun 28, 2011·18 cites·1 claims
- 3372US7615290B2Organic electroluminescent device and display deviceSONY CORP·Filed 2005·Granted Nov 10, 2009·3 cites·6 claims
- 3472US7455564B2Display device and method for manufacturing the sameSONY CORP·Filed 2005·Granted Nov 25, 2008·3 cites·8 claims
- 3572US7066009B2Gas sensorDENSO CORP·Filed 2004·Granted Jun 27, 2006·9 cites·8 claims
- 3672US5499113AImage data processing system with still video camera and digital image forming apparatusMINOLTA CAMERA KK·Filed 1995·Granted Mar 12, 1996·45 cites·25 claims
- 3772US5213736AProcess for making an electroconductive polymer compositionSHOWA DENKO KK·Filed 1991·Granted May 25, 1993·21 cites·5 claims
- 3871US9739760B2Gas sensorDENSO CORP·Filed 2013·Granted Aug 22, 2017·2 cites·6 claims
- 3971US6463788B2Structure of electric connector of gas sensorDENSO CORP·Filed 2001·Granted Oct 15, 2002·10 cites·16 claims
- 4070US8379234B2Document data and recommended information processing apparatus, document data and recommended information processing system and recording mediumKONICA MINOLTA BUSINESS TECH·Filed 2007·Granted Feb 19, 2013·2 cites·18 claims
- 4170US7569792B2Compact structure of gas sensor and production method thereofDENSO CORP·Filed 2005·Granted Aug 4, 2009·4 cites·3 claims
- 4270US6792678B2Method of manufacturing a gas sensorDENSO CORP·Filed 2001·Granted Sep 21, 2004·11 cites·7 claims
- 4369US6415647B1Compact structure of gas sensor and production method thereofDENSO CORP·Filed 1999·Granted Jul 9, 2002·27 cites·13 claims
- 4468US9353927B2Lighting apparatusTOSHIBA LIGHTING & TECHNOLOGY·Filed 2014·Granted May 31, 2016·2 cites·3 claims
- 4568US9220618B2Medical catheter deviceIGAKI KEIJI·Filed 2010·Granted Dec 29, 2015·4 cites·9 claims
- 4668US7941763B2Image processing apparatus operating as based on history of utilized function and method of controlling the sameKONICA MINOLTA BUSINESS TECH·Filed 2005·Granted May 10, 2011·2 cites·19 claims
- 4768US6214186B1Gas sensor having improved structure for installation of protective coverDENSO CORP·Filed 1999·Granted Apr 10, 2001·31 cites·17 claims
- 4868US5314981ARoom temperature curable organopolysiloxane composition and cured product of the sameSHINETSU CHEMICAL CO·Filed 1993·Granted May 24, 1994·16 cites·10 claims
- 4968US5251295AImage processing system having slave processors for controlling standard and optional modulesMINOLTA CAMERA KK·Filed 1992·Granted Oct 5, 1993·49 cites·6 claims
- 5067USD634874SStreetlightTOSHIBA LIGHTING & TECHNOLOGY·Filed 2010·Granted Mar 22, 2011·15 cites·1 claims
Showing the top 50 of 109 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Hirokazu Yamada files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →