Inventor · disambiguated record
Akihiko Gotoh
Also filed as: GOTOH AKIHIKO
49 granted patents·5 pending applications·807 citations·filing 1991–2017
98Inventor score
Top patents by PatentIndex Score
54 records- 0198US7810919B2Recording ink, ink cartridge, ink record, inkjet recording apparatus, and inkjet recording methodRICOH KK·Filed 2005·Granted Oct 12, 2010·34 cites·15 claims
- 0298US7284851B2Inkjet recording ink, recording process and recording apparatusRICOH KK·Filed 2005·Granted Oct 23, 2007·39 cites·16 claims
- 0397US7892340B2Ink-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
- 0497US6695443B2Ink for ink jet recording, ink set for ink jet recording, method for ink jet recording, ink cartridge for ink jet recording, ink jet recording apparatus and recorded articleRICOH KK·Filed 2002·Granted Feb 24, 2004·76 cites·43 claims
- 0596US8044114B2Ink 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
- 0696US7699457B2Recording ink, ink cartridge, ink record, inkjet recording apparatus, and inkjet recording methodRICOH KK·Filed 2005·Granted Apr 20, 2010·28 cites·24 claims
- 0796US7682011B2Recording ink, ink cartridge, ink record, inkjet recording apparatus and inkjet recording processRICOH KK·Filed 2005·Granted Mar 23, 2010·28 cites·15 claims
- 0895US9028600B2Inkjet ink, inkjet recording method, and inkjet recording deviceGOTO HIROSHI·Filed 2012·Granted May 12, 2015·10 cites·10 claims
- 0995US8029122B2Recording ink, inkjet recording method and inkjet recording apparatusRICOH CO LTD·Filed 2007·Granted Oct 4, 2011·18 cites·18 claims
- 1094US9783700B2Overcoating liquid, ink set, image forming method, and image forming apparatusTAMAI TAKASHI·Filed 2015·Granted Oct 10, 2017·4 cites·11 claims
- 1194US7033013B2Pretreatment liquid for recording material and image recording method using the pretreatment liquidRICOH KK·Filed 2004·Granted Apr 25, 2006·36 cites·17 claims
- 1294US6786588B2Pretreatment liquid for recording material and image recording method using the pretreatment liquidRICOH KK·Filed 2002·Granted Sep 7, 2004·58 cites·15 claims
- 1394US6730149B2Ink composition and inkjet recording method and apparatus using the ink compositionRICOH KK·Filed 2002·Granted May 4, 2004·39 cites·20 claims
- 1492US8252207B2Ink 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
- 1591US8801167B2Inkjet recording apparatus, method for inkjet recording, and inkKATOH KEITA·Filed 2012·Granted Aug 12, 2014·7 cites·17 claims
- 1691US7374608B2Ink for ink jet recording, ink jet recording method, ink cartridge and ink jet recording apparatusRICOH KK·Filed 2005·Granted May 20, 2008·9 cites·22 claims
- 1791US7094813B2Ink-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
- 1891US6730155B2Aqueous ink compositionRICOH KK·Filed 2001·Granted May 4, 2004·38 cites·15 claims
- 1990US8192009B2Ink set and ink cartridge for ink-jet recording, ink-jet recording method, and ink-jet recording apparatusYOKOHAMA YUUKI·Filed 2009·Granted Jun 5, 2012·11 cites·5 claims
- 2089US6918662B2Ink composition and inkjet recording method and apparatus using the ink compositionRICOH KK·Filed 2004·Granted Jul 19, 2005·26 cites·26 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
- 2288US6899751B2Ink for ink jet recording, ink jet recording method, ink cartridge and ink jet recording apparatusRICOH KK·Filed 2001·Granted May 31, 2005·23 cites·29 claims
- 2387US10487455B2Ink application method and method for producing wallpaperMORIYA YOSHIHIRO·Filed 2016·Granted Nov 26, 2019·2 cites·14 claims
- 2487US5952048AInk composition and recording method using the sameRICOH KK·Filed 1997·Granted Sep 14, 1999·57 cites·14 claims
- 2585US8752948B2Inkjet 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
- 2685US8083342B2Inkjet recording apparatus and inkjet recording methodMOROHOSHI NAOYA·Filed 2008·Granted Dec 27, 2011·5 cites·12 claims
- 2784US8586647B2Recording ink, recording ink set, records, ink cartridge, recording method, and inkjet recording apparatusKOJIMA MARIKO·Filed 2006·Granted Nov 19, 2013·6 cites·16 claims
- 2883US8444755B2Ink-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
- 2983US5851717ADeveloper for use in electrophotography, and image formation method using the sameRICOH KK·Filed 1996·Granted Dec 22, 1998·35 cites·20 claims
- 3082US8580159B2Ink 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
- 3181US7922316B2Inkjet recording apparatus and inkjet recording methodRICOH CO LTD·Filed 2005·Granted Apr 12, 2011·6 cites·15 claims
- 3280US7490930B2Inkjet recording apparatus and inkjet recording methodRICOH KK·Filed 2004·Granted Feb 17, 2009·15 cites·8 claims
- 3380US6020103ALiquid developer, method of producing the liquid developer and image formation using the sameRICOH KK·Filed 1997·Granted Feb 1, 2000·29 cites·17 claims
- 3479US8651650B2Inkjet recording ink, inkjet recording inkset, ink cartridge, inkjet recording method, and recorded matterMATSUYAMA AKIHIKO·Filed 2009·Granted Feb 18, 2014·3 cites·11 claims
- 3579US6578958B2Inkjet recording method and apparatus and ink thereforRICOH KK·Filed 2002·Granted Jun 17, 2003·19 cites·20 claims
- 3677US9487666B2Inkjet recording ink, ink cartridge, inkjet recording method, and inkjet recording apparatusTAMAI TAKASHI·Filed 2014·Granted Nov 8, 2016·1 cites·15 claims
- 3774US8556405B2Ink 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
- 3874US8192013B2Inkjet recording apparatus and inkjet recording methodMOROHOSHI NAOYA·Filed 2011·Granted Jun 5, 2012·1 cites·8 claims
- 3972US9789720B2Image forming method, image forming apparatus, and recorded matterRICOH CO LTD·Filed 2013·Granted Oct 17, 2017·1 cites·13 claims
- 4072US9259935B2Inkjet recorder ink flow channel cleaning liquidTAMAI TAKASHI·Filed 2015·Granted Feb 16, 2016·1 cites·6 claims
- 4172US9169407B2Ink for inkjet recording, inkjet recording method using the ink, and ink cartridge that accommodates the inkYOKOHAMA YUUKI·Filed 2011·Granted Oct 27, 2015·1 cites·4 claims
- 4271US8517527B2Inkjet recording inkset and inkjet recording methodKOJIMA MARIKO·Filed 2009·Granted Aug 27, 2013·1 cites·14 claims
- 4371US5204207AMagenta color liquid developer for electrophotographyRICOH KK·Filed 1991·Granted Apr 20, 1993·18 cites·9 claims
- 4468US8708473B2Inkjet recording treatment liquid, inkjet cartridge, inkjet recording ink set, and inkjet recording methodNAMBA MICHIHIKO·Filed 2011·Granted Apr 29, 2014·1 cites·20 claims
- 4567US9879207B2Cleaning filling liquid, cartridge, cleaning filling method, and inkjet recording deviceTAMAI TAKASHI·Filed 2016·Granted Jan 30, 2018·0 cites·13 claims
- 4664US8118419B2Ink jet recording method, recording device, ink/recording medium set, recording matterMOROHOSHI NAOYA·Filed 2002·Granted Feb 21, 2012·6 cites·26 claims
- 4762US2008302268A1Ink for ink jet recording, ink jet recording method, ink cartridge and ink jet recording apparatusARITA HITOSHI·Filed 2008·Application pending·0 cites
- 4858US8303099B2Recording ink, ink cartridge, ink record, inkjet recording apparatus, and inkjet recording methodKOJIMA MARIKO·Filed 2010·Granted Nov 6, 2012·0 cites·13 claims
- 4951US11007806B2Method for coating inks, method for producing wallpaper, image forming set, image forming system, ink, and ink setMORIYA YOSHIHIRO·Filed 2017·Granted May 18, 2021·0 cites·16 claims
- 5050US8956451B2Ink set and inkjet recording methodKATOH KEITA·Filed 2013·Granted Feb 17, 2015·0 cites·13 claims
Showing the top 50 of 54 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →