Inventor · disambiguated record
Michihiko Namba
Also filed as: NAMBA MICHIHIKO
60 granted patents·3 pending applications·805 citations·filing 1997–2024
99Inventor score
Top patents by PatentIndex Score
63 records- 0198US8304043B2Inkjet recording ink and recording media set, inkjet recording method, recorded matter and recording apparatusNAGASHIMA HIDEFUMI·Filed 2008·Granted Nov 6, 2012·45 cites·15 claims
- 0298US7810919B2Recording ink, ink cartridge, ink record, inkjet recording apparatus, and inkjet recording methodRICOH KK·Filed 2005·Granted Oct 12, 2010·34 cites·15 claims
- 0398US7284851B2Inkjet recording ink, recording process and recording apparatusRICOH KK·Filed 2005·Granted Oct 23, 2007·39 cites·16 claims
- 0498US6548216B2Electrophotographic photoconductor, image forming method and apparatus, and process cartridge using the photoconductor, and long-chain alkyl group containing bisphenol compound and polymer made therefromRICOH KK·Filed 2001·Granted Apr 15, 2003·77 cites·17 claims
- 0597US7892340B2Ink-jet recording ink, ink-jet recording ink set, ink-jet recording ink media set, ink cartridge, ink-jet recording method and ink-jet recording apparatusRICOH CO LTD·Filed 2008·Granted Feb 22, 2011·29 cites·5 claims
- 0697US6492079B2Electrophotographic photoconductor, image forming apparatus, and process cartridge using the photoconductorRICOH KK·Filed 2001·Granted Dec 10, 2002·84 cites·17 claims
- 0796US8044114B2Ink for recording, and ink cartridge, ink recorded matter, inkjet recording apparatus and inkjet recording method using the sameRICOH CO LTD·Filed 2006·Granted Oct 25, 2011·21 cites·13 claims
- 0896US7699457B2Recording ink, ink cartridge, ink record, inkjet recording apparatus, and inkjet recording methodRICOH KK·Filed 2005·Granted Apr 20, 2010·28 cites·24 claims
- 0996US7682011B2Recording ink, ink cartridge, ink record, inkjet recording apparatus and inkjet recording processRICOH KK·Filed 2005·Granted Mar 23, 2010·28 cites·15 claims
- 1096US7122284B2Electrophotographic photoconductor, image forming method and apparatus, and process cartridge using the photoconductor, and long-chain alkyl group containing bisphenol compound and polymer made therefromRICOH KK·Filed 2005·Granted Oct 17, 2006·17 cites·3 claims
- 1194US9783700B2Overcoating liquid, ink set, image forming method, and image forming apparatusTAMAI TAKASHI·Filed 2015·Granted Oct 10, 2017·4 cites·11 claims
- 1294US9085706B2Inkjet ink, ink cartridge, inkjet recording method, inkjet recording device, and inkjet recorded matterGOTO HIROSHI·Filed 2011·Granted Jul 21, 2015·7 cites·18 claims
- 1394US6465648B1Reaction product, process of producing same, electrophotographic photoconductor using same, electrophotographic apparatus having the photoconductor, and process cartridge for electrophotographic apparatusRICOH KK·Filed 2000·Granted Oct 15, 2002·37 cites·34 claims
- 1493US10119042B2Ink, inkjet printing apparatus, inkjet printing method, and printed matterKIDO MASAHIRO·Filed 2016·Granted Nov 6, 2018·4 cites·19 claims
- 1593US6596449B2Electrophotographic photoreceptor, and process cartridge and electrophotographic image forming apparatus using the electrophotographic photoreceptorRICOH KK·Filed 2001·Granted Jul 22, 2003·45 cites·63 claims
- 1693US6544701B2Reaction product, process for the production thereof, electrophotographic photoconductor using the reaction product, electrophotographic apparatus using the photoconductor, and process cartridge for electrophotographic apparatusRICOH KK·Filed 2002·Granted Apr 8, 2003·41 cites·40 claims
- 1792US8252207B2Ink for inkjet recording, ink set for inkjet recording, ink media set for inkjet recording, ink cartridge, inkjet recording method, and inkjet recording apparatusNAMBA MICHIHIKO·Filed 2007·Granted Aug 28, 2012·10 cites·20 claims
- 1891US7094813B2Ink-jet recording ink, ink-jet recording ink set, ink cartridge, ink-jet printer, and ink-jet printing methodRICOH KK·Filed 2004·Granted Aug 22, 2006·35 cites·51 claims
- 1989US10301487B2Inkjet recording device, cleaning method, and set of ink and cleaning liquidTAKAHASHI HIROAKI·Filed 2018·Granted May 28, 2019·2 cites·11 claims
- 2088US9321921B2Post-treatment liquid for inkjet recording, image forming method, cartridge and image forming apparatusNAMBA MICHIHIKO·Filed 2013·Granted Apr 26, 2016·4 cites·3 claims
- 2188US8173227B2Recording ink, ink media set, ink cartridge, ink recorded matter, inkjet recording apparatus, and inkjet recording methodMOROHOSHI NAOYA·Filed 2007·Granted May 8, 2012·9 cites·20 claims
- 2288US6524761B2Mixture of titanyltetraazaporphyrin compounds and electrophotographic photoconductor using the sameRICOH KK·Filed 2001·Granted Feb 25, 2003·19 cites·9 claims
- 2387US8899719B2Image forming method and image forming apparatusNAGASHIMA HIDEFUMI·Filed 2013·Granted Dec 2, 2014·4 cites·10 claims
- 2487US6974654B2Electrophotographic photoconductor, image forming method and apparatus, and process cartridge using the photoconductor, and long-chain alkyl group containing bisphenol compound and polymer made therefromRICOH KK·Filed 2003·Granted Dec 13, 2005·19 cites·17 claims
- 2586US8096651B2Ink-jet recording method, ink, ink cartridge, recording apparatus, and recorded matterOHSHIMA TOHRU·Filed 2008·Granted Jan 17, 2012·7 cites·8 claims
- 2686US7056633B2Electrophotographic photoconductor, image forming method and apparatus, and process cartidge using the photocondutor, and long-chain alkyl group containing bisphenol compound and polymer made therefromRICOH KK·Filed 2003·Granted Jun 6, 2006·19 cites·39 claims
- 2785US8752948B2Inkjet recording ink containing fluorine based surfactant, inkjet recording ink set, and inkjet recording apparatus containing the inkjet recording inkTAMAI TAKASHI·Filed 2011·Granted Jun 17, 2014·3 cites·15 claims
- 2884US8727523B2Inkjet recording ink, ink cartridge and inkjet recording methodTAMAI TAKASHI·Filed 2012·Granted May 20, 2014·3 cites·18 claims
- 2984US8586647B2Recording ink, recording ink set, records, ink cartridge, recording method, and inkjet recording apparatusKOJIMA MARIKO·Filed 2006·Granted Nov 19, 2013·6 cites·16 claims
- 3084US6313288B1Mixture of titanyltetraazaporphyrin compounds and electrophotographic photoconductor using the sameRICOH KK·Filed 1999·Granted Nov 6, 2001·30 cites·7 claims
- 3183US8444755B2Ink-jet recording ink, ink-jet recording ink set, ink-jet recording ink media set, ink cartridge, ink-jet recording method and ink-jet recording apparatusNAMBA MICHIHIKO·Filed 2008·Granted May 21, 2013·4 cites·6 claims
- 3282US10066112B2White ink, ink set, recording method, ink container, and inkjet recording deviceNAKAMURA YUTA·Filed 2017·Granted Sep 4, 2018·1 cites·18 claims
- 3382US8580159B2Ink for inkjet recording, ink set for inkjet recording, ink media set for inkjet recording, ink cartridge, inkjet recording method, and inkjet recording apparatusNAMBA MICHIHIKO·Filed 2012·Granted Nov 12, 2013·2 cites·20 claims
- 3481US9518190B2Inkjet ink, ink cartridge, inkjet recording method, inkjet recording device, and inkjet recorded matterRICOH CO LTD·Filed 2015·Granted Dec 13, 2016·1 cites·14 claims
- 3579US8240836B2Recording ink, ink media set, ink cartridge, ink recorded matter, inkjet recording apparatus, and inkjet recording methodMOROHOSHI NAOYA·Filed 2008·Granted Aug 14, 2012·5 cites·12 claims
- 3677US9487666B2Inkjet recording ink, ink cartridge, inkjet recording method, and inkjet recording apparatusTAMAI TAKASHI·Filed 2014·Granted Nov 8, 2016·1 cites·15 claims
- 3776US12497527B2Ink, image forming apparatus, and image forming methodYOSHIHARA MAYUMI·Filed 2023·Granted Dec 16, 2025·0 cites·8 claims
- 3875US6074792ATetraazaporphyrin pigment for use in electrophotographic photoconductor and electrophotographic photoconductor using the sameRICOH KK·Filed 1998·Granted Jun 13, 2000·23 cites·16 claims
- 3975US5942362AElectrophotographic photoconductorRICOH KK·Filed 1997·Granted Aug 24, 1999·24 cites·23 claims
- 4074US8556405B2Ink for recording, and ink cartridge, ink recorded matter, inkjet recording apparatus and inkjet recording method using the sameHABASHI HISASHI·Filed 2011·Granted Oct 15, 2013·2 cites·17 claims
- 4173US8845091B2Variable printing medium having high glossiness, and recording methodOHSHIMA TOHRU·Filed 2010·Granted Sep 30, 2014·2 cites·10 claims
- 4272US10829657B2Active energy ray-curable composition, active energy ray-curable ink, composition storing container, two-dimensional or three-dimensional image forming device, method for producing cured product, and cured productFUJII HIDETOSHI·Filed 2019·Granted Nov 10, 2020·0 cites·15 claims
- 4372US9789720B2Image forming method, image forming apparatus, and recorded matterRICOH CO LTD·Filed 2013·Granted Oct 17, 2017·1 cites·13 claims
- 4472US9259935B2Inkjet recorder ink flow channel cleaning liquidTAMAI TAKASHI·Filed 2015·Granted Feb 16, 2016·1 cites·6 claims
- 4571US10160248B2Processing fluid, image forming method, recorded matter, and inkjet recording deviceAOAI SHOSUKE·Filed 2015·Granted Dec 25, 2018·1 cites·19 claims
- 4671US6068956AElectrophotographic photoconductorRICOH KK·Filed 1999·Granted May 30, 2000·20 cites·18 claims
- 4770US9205677B2Inkjet recording method and inkjet recording deviceNAMBA MICHIHIKO·Filed 2014·Granted Dec 8, 2015·1 cites·5 claims
- 4870US8353582B2Ultraviolet curable inkjet recording ink and color image forming apparatusRICOH CO LTD·Filed 2009·Granted Jan 15, 2013·4 cites·8 claims
- 4968US8708473B2Inkjet recording treatment liquid, inkjet cartridge, inkjet recording ink set, and inkjet recording methodNAMBA MICHIHIKO·Filed 2011·Granted Apr 29, 2014·1 cites·20 claims
- 5067US9879207B2Cleaning filling liquid, cartridge, cleaning filling method, and inkjet recording deviceTAMAI TAKASHI·Filed 2016·Granted Jan 30, 2018·0 cites·13 claims
Showing the top 50 of 63 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →