Inventor · disambiguated record
Masaki Yamada
Also filed as: YAMADA MASAKI
183 granted patents·46 pending applications·2,600 citations·filing 1985–2025
99Inventor score
Top patents by PatentIndex Score
229 records- 0199US9581931B2Electrophotographic member, process cartridge, and electrophotographic apparatusCANON KK·Filed 2015·Granted Feb 28, 2017·46 cites·6 claims
- 0299US7485987B2Power converting deviceMITSUBISHI ELECTRIC CORP·Filed 2006·Granted Feb 3, 2009·198 cites·15 claims
- 0398US11112748B2Developing member, process cartridge and electrophotographic apparatusCANON KK·Filed 2020·Granted Sep 7, 2021·9 cites·10 claims
- 0498US10649350B2Electrophotographic member, process cartridge and electrophotographic apparatusCANON KK·Filed 2015·Granted May 12, 2020·24 cites·5 claims
- 0598US10108129B2Member for electrophotography and method of producing the member, process cartridge, and electrophotographic apparatusCANON KK·Filed 2015·Granted Oct 23, 2018·35 cites·20 claims
- 0698US10018934B2Electrophotographic member, process cartridge, and electrophotographic apparatusCANON KK·Filed 2015·Granted Jul 10, 2018·35 cites·13 claims
- 0798US9977353B2Electrophotographic member, process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2015·Granted May 22, 2018·35 cites·4 claims
- 0898US9977359B2Electrophotographic member, method of producing the same, process cartridge, and electrophotographic apparatusCANON KK·Filed 2017·Granted May 22, 2018·16 cites·8 claims
- 0998US9964914B2Electrophotographic member, process cartridge, and electrophotographic apparatusCANON KK·Filed 2015·Granted May 8, 2018·36 cites·8 claims
- 1098US9811009B2Electrophotographic member, process cartridge and electrophotographic apparatusCANON KK·Filed 2015·Granted Nov 7, 2017·39 cites·3 claims
- 1198US9665028B2Electrophotographic member, process cartridge and electrophotographic apparatusCANON KK·Filed 2014·Granted May 30, 2017·42 cites·7 claims
- 1298US9639009B2Electrophotographic member, process cartridge, and electrophotographic apparatusCANON KK·Filed 2015·Granted May 2, 2017·44 cites·13 claims
- 1398US9442416B2Image-forming apparatus, image-forming method, developing apparatus, and developing methodCANON KK·Filed 2014·Granted Sep 13, 2016·47 cites·13 claims
- 1498US9354545B2Developing apparatus, developing method, image-forming apparatus, and image-forming methodCANON KK·Filed 2014·Granted May 31, 2016·45 cites·20 claims
- 1598US9348246B2Developing apparatus, developing method, image forming apparatus and image forming methodCANON KK·Filed 2014·Granted May 24, 2016·45 cites·8 claims
- 1698US8846287B2Electrophotographic member, process cartridge and electrophotographic apparatusCANON KK·Filed 2013·Granted Sep 30, 2014·36 cites·7 claims
- 1798US8837985B2Electrophotographic member and electrophotographic apparatusCANON KK·Filed 2013·Granted Sep 16, 2014·36 cites·10 claims
- 1898US8798508B2Developing member, process cartridge, and electrophotographic apparatusCANON KK·Filed 2013·Granted Aug 5, 2014·38 cites·9 claims
- 1998US8706011B2Developing member, process cartridge, and electrophotographic apparatusCANON KK·Filed 2013·Granted Apr 22, 2014·30 cites·13 claims
- 2098US8600273B2Developing roller, process cartridge, and electrophotographic apparatusYAMADA MASAKI·Filed 2012·Granted Dec 3, 2013·33 cites·4 claims
- 2198US7799398B2Developing member and electrophotographic image forming apparatusCANON KK·Filed 2007·Granted Sep 21, 2010·57 cites·7 claims
- 2298US7596008B2Power conversion apparatusMITSUBISHI ELECTRIC CORP·Filed 2006·Granted Sep 29, 2009·193 cites·17 claims
- 2397US11586121B2Electrophotographic electro-conductive member, process cartridge, and electrophotographic image forming deviceCANON KK·Filed 2022·Granted Feb 21, 2023·4 cites·16 claims
- 2497US11307509B2Electro-conductive member, method for producing same, process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2020·Granted Apr 19, 2022·8 cites·8 claims
- 2597US9599913B2Electrophotographic member, process cartridge and electrophotographic apparatusCANON KK·Filed 2014·Granted Mar 21, 2017·43 cites·6 claims
- 2697US9581934B2Developing apparatus, developing method, image forming apparatus, and image forming methodCANON KK·Filed 2014·Granted Feb 28, 2017·22 cites·12 claims
- 2797US9442419B2Developing apparatus, developing method, image forming apparatus, and image forming methodCANON KK·Filed 2014·Granted Sep 13, 2016·22 cites·6 claims
- 2897US8874007B2Developing unit and electrophotographic image forming apparatusCANON KK·Filed 2013·Granted Oct 28, 2014·31 cites·5 claims
- 2997US8774677B2Developing member, process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2013·Granted Jul 8, 2014·23 cites·4 claims
- 3097US8768226B2Developer support member, electrophotographic process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2012·Granted Jul 1, 2014·28 cites·4 claims
- 3197US8768227B2Developing member including elastic member containing cured product of addition-curing silicone rubber mixture, processing cartridge including the developing member, and electrophotographic apparatus including the developing memberCANON KK·Filed 2013·Granted Jul 1, 2014·31 cites·10 claims
- 3297US8655222B2Developing member, process cartridge, and electrophotographic image forming apparatusCANON KK·Filed 2013·Granted Feb 18, 2014·35 cites·6 claims
- 3397US7797833B2Developing roller and method of producing the roller, process cartridge, and electrophotographic image-forming apparatusCANON KK·Filed 2009·Granted Sep 21, 2010·44 cites·5 claims
- 3497US7602626B2Power conversion apparatusMITSUBISHI ELECTRIC CORP·Filed 2006·Granted Oct 13, 2009·123 cites·10 claims
- 3596US8874012B2Developing member, process cartridge and electrophotographic apparatusCANON KK·Filed 2013·Granted Oct 28, 2014·18 cites·11 claims
- 3695US11295960B1Etching methodHITACHI HIGH TECH CORP·Filed 2021·Granted Apr 5, 2022·6 cites·15 claims
- 3795US10379460B2Electrophotographic member, process cartridge, and electrophotographic apparatusCANON KK·Filed 2017·Granted Aug 13, 2019·10 cites·11 claims
- 3895US10331054B2Electrophotographic member, process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2017·Granted Jun 25, 2019·12 cites·8 claims
- 3995US10044278B2Power conversion deviceMITSUBISHI ELECTRIC CORP·Filed 2015·Granted Aug 7, 2018·16 cites·10 claims
- 4095US9882466B2Power conversion device including an AC/DC converter and a DC/DC converterMITSUBISHI ELECTRIC CORP·Filed 2015·Granted Jan 30, 2018·15 cites·18 claims
- 4195US8717715B1Spin accumulation magnetic read sensorHGST Netherlands BV·Filed 2012·Granted May 6, 2014·14 cites·18 claims
- 4294US11022904B2Electrophotographic member, process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2019·Granted Jun 1, 2021·6 cites·15 claims
- 4394US10969709B2Member for electrophotography, process cartridge and electrophotographic apparatusCANON KK·Filed 2019·Granted Apr 6, 2021·3 cites·9 claims
- 4494US10303079B2Electrophotographic member, process cartridge and electrophotographic apparatusCANON KK·Filed 2017·Granted May 28, 2019·11 cites·5 claims
- 4594US8913930B2Developing roller, electrophotographic process cartridge, and electrophotographic image forming apparatusISHII TORU·Filed 2012·Granted Dec 16, 2014·23 cites·12 claims
- 4693US11169464B2Electrophotographic member, process cartridge, and electrophotographic image-forming apparatusCANON KK·Filed 2019·Granted Nov 9, 2021·6 cites·10 claims
- 4793US11112718B2Electrophotographic member, process cartridge, and electrophotographic apparatusCANON KK·Filed 2018·Granted Sep 7, 2021·7 cites·6 claims
- 4893US10884352B2Electrophotographic member, process cartridge and electrophotographic apparatusCANON KK·Filed 2019·Granted Jan 5, 2021·6 cites·12 claims
- 4993US8730868B2Network node, time synchronization method and network systemYAMADA MASAKI·Filed 2012·Granted May 20, 2014·14 cites·17 claims
- 5092US10197930B2Electrophotographic member, process cartridge, and electrophotographic apparatusCANON KK·Filed 2016·Granted Feb 5, 2019·13 cites·15 claims
Showing the top 50 of 229 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →