Inventor · disambiguated record
Yasuaki Murai
Also filed as: MURAI YASUAKI
51 granted patents·10 pending applications·592 citations·filing 2004–2024
98Inventor score
Top patents by PatentIndex Score
61 records- 0198US8815484B2Toner including compound having bisazo skeletonCANON KK·Filed 2012·Granted Aug 26, 2014·52 cites·10 claims
- 0298US8377616B2AZO compound, and pigment dispersant, pigment composition, pigment dispersion and toner including the azo compoundCANON KK·Filed 2011·Granted Feb 19, 2013·57 cites·11 claims
- 0398US7833685B2Coloring compound and yellow toner containing the coloring compoundCANON KK·Filed 2008·Granted Nov 16, 2010·60 cites·6 claims
- 0497US10216107B2Toner and method of producing tonerCANON KK·Filed 2017·Granted Feb 26, 2019·15 cites·11 claims
- 0597US9829814B2TonerCANON KK·Filed 2016·Granted Nov 28, 2017·33 cites·17 claims
- 0697US9715187B2Method of producing a compound having a colorant structure, and toner containing a compound obtained by the production methodCANON KK·Filed 2015·Granted Jul 25, 2017·23 cites·8 claims
- 0797US7264910B2Cyan toner and method of producing cyan tonerCANON KK·Filed 2006·Granted Sep 4, 2007·35 cites·5 claims
- 0897US7141342B2Magenta toner and process for producing magenta tonerCANON KK·Filed 2005·Granted Nov 28, 2006·40 cites·6 claims
- 0996US8211606B2Coloring compound, yellow toner, sheet for heat-sensitive transfer recording, and inkMURAI YASUAKI·Filed 2008·Granted Jul 3, 2012·41 cites·7 claims
- 1096US7288357B2Cyan toner and method of producing cyan tonerCANON KK·Filed 2006·Granted Oct 30, 2007·31 cites·4 claims
- 1195US9556290B2Method for producing compound having colorant structure at main chain terminal of polymer, and pigment dispersant, pigment composition, pigment dispersion and toner containing compound obtained by the production methodCANON KK·Filed 2015·Granted Jan 31, 2017·22 cites·10 claims
- 1295US8628899B2azo compound, and pigment dispersant, pigment composition, pigment dispersion and toner including the AZO compoundKAWAMURA MASASHI·Filed 2011·Granted Jan 14, 2014·52 cites·14 claims
- 1395US8343269B2Colorant compoundCANON KK·Filed 2010·Granted Jan 1, 2013·17 cites·11 claims
- 1494US11086242B2Toner and method for producing tonerCANON KK·Filed 2019·Granted Aug 10, 2021·6 cites·6 claims
- 1594US10948839B2Toner having a toner particle with a binder resin containing a copolymer of a styrenic polymerizable monomer, and at least one of an acrylic or methacrylic polymerizable monomerCANON KK·Filed 2019·Granted Mar 16, 2021·7 cites·2 claims
- 1694US7504488B2Dye, dye production method and ink containing dyeCANON KK·Filed 2007·Granted Mar 17, 2009·20 cites·10 claims
- 1794US7083667B2Colorant compound, ink, ink tank, recording unit, recording apparatus and recording processCANON KK·Filed 2005·Granted Aug 1, 2006·19 cites·15 claims
- 1891US8815485B2Azo compound, pigment dispersant containing the azo compound, pigment composition, pigment dispersion, and tonerTANAKA MASATAKE·Filed 2011·Granted Aug 26, 2014·8 cites·11 claims
- 1990US9618867B2Pigment dispersion and tonerCANON KK·Filed 2016·Granted Apr 11, 2017·3 cites·11 claims
- 2089US9505723B2Compound, dispersant and tonerCANON KK·Filed 2016·Granted Nov 29, 2016·4 cites·10 claims
- 2188US8936894B2Magenta toner containing compound having AZO skeletonCANON KK·Filed 2013·Granted Jan 20, 2015·4 cites·10 claims
- 2287US8211221B2Colorant compound and ink including the colorant compoundTANAKA MASATAKE·Filed 2009·Granted Jul 3, 2012·9 cites·5 claims
- 2384US8927187B2Cyan toner containing compound having azo skeletonCANON KK·Filed 2013·Granted Jan 6, 2015·3 cites·10 claims
- 2484US8916318B2Black toner containing compound having azo skeletonCANON KK·Filed 2013·Granted Dec 23, 2014·3 cites·8 claims
- 2584US7407540B2Coloring liquid, ink tank, recording unit, recording apparatus and recording methodCANON KK·Filed 2006·Granted Aug 5, 2008·6 cites·19 claims
- 2681US9097999B2Polyester, pigment composition, and tonerMURAI YASUAKI·Filed 2011·Granted Aug 4, 2015·3 cites·9 claims
- 2781US8962726B2Compound having bisazo skeleton, pigment dispersant containing the compound, pigment composition, pigment dispersion, ink and resist composition for color filterCANON KK·Filed 2012·Granted Feb 24, 2015·3 cites·12 claims
- 2878US7303615B2Colorant material, and water dispersion, ink, ink tank, recording unit, recording apparatus and recording method using the sameCANON KK·Filed 2005·Granted Dec 4, 2007·4 cites·14 claims
- 2974US9170514B2Polymerizable monomer, polymeric compound, charge control agent containing the polymeric compound, and developer bearing member and toner which contain the charge control agentMURAI YASUAKI·Filed 2012·Granted Oct 27, 2015·2 cites·6 claims
- 3072US7834213B2Colorant compound and method of manufacturing the same as well as blue resist composition for use in color filter containing the sameCANON KK·Filed 2006·Granted Nov 16, 2010·2 cites·2 claims
- 3170US9593243B2Compound, pigment dispersing agent, pigment composition, pigment dispersion and toner containing said compoundCANON KK·Filed 2014·Granted Mar 14, 2017·1 cites·16 claims
- 3270US9298118B2Azo compound, pigment dispersant containing the azo compound, pigment composition, pigment dispersion and tonerCANON KK·Filed 2013·Granted Mar 29, 2016·1 cites·13 claims
- 3370US7985288B2Colorant compound and ink including the colorant compoundCANON KK·Filed 2009·Granted Jul 26, 2011·1 cites·11 claims
- 3467US9250552B2Polymerizable monomer, polymeric compound, charge control agent containing the polymeric compound, and developer bearing member and toner which contain the charge control agentINOUE KEI·Filed 2012·Granted Feb 2, 2016·1 cites·11 claims
- 3564US7598012B2Coloring compound and recording material using the sameCANON KK·Filed 2004·Granted Oct 6, 2009·4 cites·4 claims
- 3661US11702556B2Aqueous ink, ink cartridge and ink jet recording methodCANON KK·Filed 2020·Granted Jul 18, 2023·0 cites·15 claims
- 3760US2015064618A1Black toner containing compound having azo skeletonCANON KK·Filed 2014·Application pending·0 cites
- 3860US2015093699A1Cyan toner containing compound having azo skeletonCANON KK·Filed 2014·Application pending·0 cites
- 3959US7981205B2Dye compound and ink containing dye compoundCANON KK·Filed 2009·Granted Jul 19, 2011·0 cites·8 claims
- 4057US7981207B2Dye compound and ink containing dye compoundCANON KK·Filed 2009·Granted Jul 19, 2011·0 cites·12 claims
- 4157US2025129258A1Aqueous ink, ink cartridge and ink jet recording methodCANON KK·Filed 2024·Application pending·0 cites
- 4256US2015079515A1Magenta toner containing compound having azo skeletonCANON KAUBSHIKI KAISHA·Filed 2014·Application pending·0 cites
- 4353US9249308B2Compound having bisazo dye skeleton, pigment composition containing the same, pigment dispersion, ink, and color filter resist compositionCANON KK·Filed 2012·Granted Feb 2, 2016·0 cites·11 claims
- 4453US7973197B2Colorant compound and blue resist composition for use in color filter containing the sameCANON KK·Filed 2010·Granted Jul 5, 2011·0 cites·4 claims
- 4552US9410038B2Compound, ink, ink cartridge and ink jet recording methodCANON KK·Filed 2014·Granted Aug 9, 2016·0 cites·12 claims
- 4651US9176407B2Toner and method for manufacturing toner particlesCANON KK·Filed 2012·Granted Nov 3, 2015·0 cites·9 claims
- 4749US9834683B2Compound having azo skeleton structure, pigment dispersant, pigment composition, pigment dispersion, and tonerCANON KK·Filed 2014·Granted Dec 5, 2017·0 cites·14 claims
- 4848US12215240B2Aqueous ink, ink cartridge and ink jet recording methodCANON KK·Filed 2020·Granted Feb 4, 2025·0 cites·21 claims
- 4947US9926450B2Compound having azo skeleton structure, pigment-dispersing agent, pigment composition, pigment dispersion, and tonerCANON KK·Filed 2014·Granted Mar 27, 2018·0 cites·16 claims
- 5047US9777087B2Polymer including phthalocyanine structure, method for producing the polymer, pigment composition, pigment dispersion, and tonerCANON KK·Filed 2016·Granted Oct 3, 2017·0 cites·14 claims
Showing the top 50 of 61 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →