Inventor · disambiguated record
Masashi Yamamoto
Also filed as: YAMAMOTO MASASHI
121 granted patents·37 pending applications·2,379 citations·filing 1984–2025
99Inventor score
Top patents by PatentIndex Score
158 records- 0198US6946683B2Opposed terminal structure having a nitride semiconductor elementNICHIA CORP·Filed 2004·Granted Sep 20, 2005·163 cites·13 claims
- 0298US6744071B2Nitride semiconductor element with a supporting substrateNICHIA CORP·Filed 2003·Granted Jun 1, 2004·216 cites·16 claims
- 0398US6381428B1Photoconductor unit and image forming systemHITACHI LTD·Filed 2000·Granted Apr 30, 2002·82 cites·13 claims
- 0496US11192424B2Stabilizer device and stabilizer systemTOYOTA MOTOR CO LTD·Filed 2019·Granted Dec 7, 2021·46 cites·21 claims
- 0596US8030665B2Nitride semiconductor device comprising bonded substrate and fabrication method of the sameNICHIA CORP·Filed 2008·Granted Oct 4, 2011·59 cites·16 claims
- 0696US7049635B2Opposed terminal structure having a nitride semiconductor elementNICHIA CORP·Filed 2005·Granted May 23, 2006·48 cites·6 claims
- 0796US6916676B2Method for producing a nitride semiconductor elementNICHIA CORP·Filed 2003·Granted Jul 12, 2005·68 cites·19 claims
- 0896US6697586B2Photoconductor unit and image forming systemHITACHI LTD·Filed 2002·Granted Feb 24, 2004·50 cites·3 claims
- 0996US5666599AColor electro-photographic printing apparatusHITACHI LTD·Filed 1995·Granted Sep 9, 1997·81 cites·25 claims
- 1095US6873837B1Emergency reporting system and terminal apparatus thereinMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Mar 29, 2005·79 cites·2 claims
- 1194US10253200B2Aqueous ink, ink cartridge, and ink jet recording methodCANON KK·Filed 2016·Granted Apr 9, 2019·5 cites·1 claims
- 1294US9187662B2Ink, ink cartridge and ink jet recording methodCANON KK·Filed 2013·Granted Nov 17, 2015·11 cites·15 claims
- 1394US6501925B2Photoconductor unit and image forming systemHITACHI LTD·Filed 2002·Granted Dec 31, 2002·41 cites·2 claims
- 1493US7105857B2Nitride semiconductor device comprising bonded substrate and fabrication method of the sameNICHIA CORP·Filed 2003·Granted Sep 12, 2006·78 cites·16 claims
- 1592USD449393SRear combination lamp for an automobileHONDA MOTOR CO LTD·Filed 2001·Granted Oct 16, 2001·53 cites·1 claims
- 1692US4791882ALoosely mounted outer sleeve member with biasing meansMINOLTA CAMERA KK·Filed 1987·Granted Dec 20, 1988·41 cites·12 claims
- 1791US9809721B2Aqueous ink, ink cartridge, and ink jet recording methodCANON KK·Filed 2016·Granted Nov 7, 2017·3 cites·18 claims
- 1891US6085051ASmall-size color electro-photographic apparatusHITACHI LTD·Filed 1998·Granted Jul 4, 2000·37 cites·18 claims
- 1990US8876962B2Aqueous ink, ink cartridge, and ink jet recording methodYAMAMOTO MASASHI·Filed 2012·Granted Nov 4, 2014·8 cites·12 claims
- 2090US4973540ADeveloper for electrostatic latent image containing fine particle comprising positively and negatively chargeable polar groupMINOLTA CAMERA KK·Filed 1989·Granted Nov 27, 1990·36 cites·23 claims
- 2189US8366956B2Quaternary ammonium salt and composition, and electrochemical deviceOTSUKA CHEMICAL CO LTD·Filed 2010·Granted Feb 5, 2013·7 cites·12 claims
- 2289US7378334B2Nitride semiconductor device comprising bonded substrate and fabrication method of the sameNICHIA CORP·Filed 2006·Granted May 27, 2008·16 cites·15 claims
- 2389US6337641B1Emergency reporting system and terminal apparatus thereinMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Jan 8, 2002·40 cites·11 claims
- 2489US5312867AThermoplastic propylene resin compositionSUMITOMO CHEMICAL CO·Filed 1992·Granted May 17, 1994·45 cites·11 claims
- 2588US12033410B2Character recognition device and character recognition methodPANASONIC IP MAN CO LTD·Filed 2023·Granted Jul 9, 2024·1 cites·9 claims
- 2688US7912363B2Object determining device and imaging apparatusOMRON TATEISI ELECTRONICS CO·Filed 2009·Granted Mar 22, 2011·14 cites·13 claims
- 2788US6310543B1Emergency call systemMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Oct 30, 2001·58 cites·18 claims
- 2887US8747690B2Quaternary ammonium salt and composition, and electrochemical deviceNISHIDA TETSUO·Filed 2012·Granted Jun 10, 2014·6 cites·4 claims
- 2987US5815775AColor electro-photographic apparatusHITACHI LTD·Filed 1997·Granted Sep 29, 1998·29 cites·24 claims
- 3086US11124593B2Modified block copolymer, method for producing modified block copolymer, and resin compositionASAHI CHEMICAL IND·Filed 2018·Granted Sep 21, 2021·2 cites·15 claims
- 3186US6574451B2Small-size color electro-photographic apparatusHITACHI LTD·Filed 2001·Granted Jun 3, 2003·18 cites·5 claims
- 3285US11718141B2Stabilizer system for vehicleTOYOTA MOTOR CO LTD·Filed 2021·Granted Aug 8, 2023·2 cites·18 claims
- 3385US7526193B2Object determining device and imaging apparatusOMRON TATEISI ELECTRONICS CO·Filed 2004·Granted Apr 28, 2009·33 cites·19 claims
- 3484US5541717ACleaning method for contact charging means in image forming apparatusMINOLTA CO LTD·Filed 1995·Granted Jul 30, 1996·38 cites·5 claims
- 3583US10793585B2Phosphoric acid diester salt, production method therefor, non-aqueous electrolytic solution for power storage element, and power storage elementSTELLA CHEMIFA CORP·Filed 2016·Granted Oct 6, 2020·3 cites·5 claims
- 3682US11312928B2Detergent composition comprising an acidic sophorose lipid and fatty acid salt mixtureSARAYA CO LTD·Filed 2018·Granted Apr 26, 2022·3 cites·15 claims
- 3782US4990963ADeveloping member composed of conductive particles in a dielectric material and having a variable volume resistivityMINOLTA CAMERA CO LTD SENRI CE·Filed 1988·Granted Feb 5, 1991·28 cites·7 claims
- 3881US7834197B2Quaternary ammonium salt, electrolyte, and electrochemical deviceOTSUKA CHEMICAL CO LTD·Filed 2004·Granted Nov 16, 2010·24 cites·14 claims
- 3980US7463849B2Image forming apparatus including static pre-eliminatorRICOH PRINTING SYS LTD·Filed 2006·Granted Dec 9, 2008·6 cites·5 claims
- 4079US10224692B2Surface emitting laser element and optical deviceROHM CO LTD·Filed 2017·Granted Mar 5, 2019·3 cites·17 claims
- 4179USD456311SAutomobileHONDA MOTOR CO LTD·Filed 2001·Granted Apr 30, 2002·25 cites·1 claims
- 4279US5330269APackageTOYO ALUMINIUM KK·Filed 1992·Granted Jul 19, 1994·69 cites·10 claims
- 4378US9327879B2Multilayer body and containerSEKIGUCHI TOMONOBU·Filed 2010·Granted May 3, 2016·4 cites·11 claims
- 4478US7873474B2Driving assist system for vehicleMAZDA MOTOR·Filed 2007·Granted Jan 18, 2011·17 cites·23 claims
- 4578US5815396AVacuum processing device and film forming device and method using sameHITACHI LTD·Filed 1995·Granted Sep 29, 1998·51 cites·48 claims
- 4677US7142794B2Image forming apparatusRICOH PRINTING SYS LTD·Filed 2005·Granted Nov 28, 2006·5 cites·16 claims
- 4777US6891630B1Image recording method and image recording apparatusHITACHI LTD·Filed 2000·Granted May 10, 2005·16 cites·6 claims
- 4877US5428091AThermoplastic resin compositions comprising polyphenylene ether, polyolefins and dinitrodiaminesSUMITOMO CHEMICAL CO·Filed 1993·Granted Jun 27, 1995·26 cites·4 claims
- 4975US8583025B2Image forming apparatus which decreases a sheet transportation speed difference between a registration device and a transfer deviceFUJII TOMOHIKO·Filed 2011·Granted Nov 12, 2013·2 cites·13 claims
- 5075US5484824AThermoplastic polypropylene resin compositionSUMITOMO CHEMICAL CO·Filed 1995·Granted Jan 16, 1996·35 cites·4 claims
Showing the top 50 of 158 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →