Inventor · disambiguated record
Masashi Kawamura
Also filed as: KAWAMURA MASASHI
32 granted patents·13 pending applications·470 citations·filing 2009–2025
96Inventor score
Top patents by PatentIndex Score
45 records- 0198US9921501B2Toner and process for producing tonerCANON KK·Filed 2017·Granted Mar 20, 2018·45 cites·8 claims
- 0298US8940467B2TonerCANON KK·Filed 2013·Granted Jan 27, 2015·52 cites·14 claims
- 0398US8916319B2TonerCANON KK·Filed 2013·Granted Dec 23, 2014·56 cites·12 claims
- 0498US8815484B2Toner including compound having bisazo skeletonCANON KK·Filed 2012·Granted Aug 26, 2014·52 cites·10 claims
- 0598US8377616B2AZO 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
- 0697US11249412B2TonerCANON KK·Filed 2020·Granted Feb 15, 2022·10 cites·10 claims
- 0797US11181845B2TonerCANON KK·Filed 2020·Granted Nov 23, 2021·13 cites·14 claims
- 0897US9857711B2TonerCANON KK·Filed 2016·Granted Jan 2, 2018·34 cites·16 claims
- 0997US9829814B2TonerCANON KK·Filed 2016·Granted Nov 28, 2017·33 cites·17 claims
- 1095US10054866B2TonerCANON KK·Filed 2017·Granted Aug 21, 2018·30 cites·8 claims
- 1195US8628899B2azo 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
- 1291US8815485B2Azo compound, pigment dispersant containing the azo compound, pigment composition, pigment dispersion, and tonerTANAKA MASATAKE·Filed 2011·Granted Aug 26, 2014·8 cites·11 claims
- 1388US8936894B2Magenta toner containing compound having AZO skeletonCANON KK·Filed 2013·Granted Jan 20, 2015·4 cites·10 claims
- 1487US8211221B2Colorant compound and ink including the colorant compoundTANAKA MASATAKE·Filed 2009·Granted Jul 3, 2012·9 cites·5 claims
- 1584US8927187B2Cyan toner containing compound having azo skeletonCANON KK·Filed 2013·Granted Jan 6, 2015·3 cites·10 claims
- 1684US8916318B2Black toner containing compound having azo skeletonCANON KK·Filed 2013·Granted Dec 23, 2014·3 cites·8 claims
- 1783US11714363B2TonerCANON KK·Filed 2021·Granted Aug 1, 2023·1 cites·10 claims
- 1881US9097999B2Polyester, pigment composition, and tonerMURAI YASUAKI·Filed 2011·Granted Aug 4, 2015·3 cites·9 claims
- 1981US8962726B2Compound 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
- 2074US2025180548A1Particle for use in agglutination method, test particle, reagent, test kit, method for producing particle, and method for detecting target substanceCANON KK·Filed 2024·Application pending·0 cites
- 2170US9593243B2Compound, pigment dispersing agent, pigment composition, pigment dispersion and toner containing said compoundCANON KK·Filed 2014·Granted Mar 14, 2017·1 cites·16 claims
- 2270US9298118B2Azo compound, pigment dispersant containing the azo compound, pigment composition, pigment dispersion and tonerCANON KK·Filed 2013·Granted Mar 29, 2016·1 cites·13 claims
- 2369US2025180573A1Particle, test particle, reagent, and test kit, and detection methodCANON KK·Filed 2024·Application pending·0 cites
- 2469US2025180572A1Particle, test particle, reagent, and test kit, and detection methodCANON KK·Filed 2024·Application pending·0 cites
- 2565US11274179B2Method for producing compound having amide bond and also having alkoxysilyl groupCANON KK·Filed 2020·Granted Mar 15, 2022·0 cites·8 claims
- 2660US12346064B2TonerCANON KK·Filed 2021·Granted Jul 1, 2025·0 cites·11 claims
- 2760US2015064618A1Black toner containing compound having azo skeletonCANON KK·Filed 2014·Application pending·0 cites
- 2860US2015093699A1Cyan toner containing compound having azo skeletonCANON KK·Filed 2014·Application pending·0 cites
- 2958US2025251398A1METHOD FOR PRODUCING PARTICLE FOR IMMUNOASSAY FOR DETECTING ANTI-HBs ANTIBODY, AND PARTICLE OBTAINED BY THE PRODUCTION METHODCANON KK·Filed 2025·Application pending·0 cites
- 3057US2020341395A1TonerCANON KK·Filed 2020·Application pending·0 cites
- 3157US2025258169A1Support, ligand-bonded support, affinity particle, reagent and kit including the same, and detection methodCANON KK·Filed 2025·Application pending·0 cites
- 3256US2015079515A1Magenta toner containing compound having azo skeletonCANON KAUBSHIKI KAISHA·Filed 2014·Application pending·0 cites
- 3353US9249308B2Compound 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
- 3452US12449742B2Toner and method for manufacturing tonerCANON KK·Filed 2021·Granted Oct 21, 2025·0 cites·20 claims
- 3551US9176407B2Toner and method for manufacturing toner particlesCANON KK·Filed 2012·Granted Nov 3, 2015·0 cites·9 claims
- 3649US9834683B2Compound having azo skeleton structure, pigment dispersant, pigment composition, pigment dispersion, and tonerCANON KK·Filed 2014·Granted Dec 5, 2017·0 cites·14 claims
- 3747US9926450B2Compound having azo skeleton structure, pigment-dispersing agent, pigment composition, pigment dispersion, and tonerCANON KK·Filed 2014·Granted Mar 27, 2018·0 cites·16 claims
- 3846US9470995B2Compound having azo skeleton and pigment dispersant, pigment composition, pigment dispersion, and toner containing the compoundCANON KK·Filed 2013·Granted Oct 18, 2016·0 cites·12 claims
- 3945US9625845B2Compound having azo skeleton structure, pigment-dispersing agent, pigment composition, pigment dispersion, and tonerCANON KK·Filed 2014·Granted Apr 18, 2017·0 cites·12 claims
- 4044US2022128915A1TonerCANON KK·Filed 2021·Application pending·0 cites
- 4143US10087328B2Compound having azo skeleton, pigment dispersant, pigment composition, pigment dispersion, and tonerCANON KK·Filed 2014·Granted Oct 2, 2018·0 cites·14 claims
- 4243US2014377697A1Cyan toner containing compound having azo skeletonCANON KK·Filed 2013·Application pending·0 cites
- 4341US2014356779A1Black toner containing compound having azo skeletonCANON KK·Filed 2013·Application pending·0 cites
- 4441US2015004539A1Magenta toner containing compound having azo skeletonCANON KK·Filed 2013·Application pending·0 cites
- 4537US8367288B2Yellow tonerCANON KK·Filed 2010·Granted Feb 5, 2013·0 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →