P

Inventor

MURAI YASUAKI

JP51 patents
⚠️ This page may combine multiple inventors who share the name “MURAI YASUAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

CANON KK

43 patents
US8377616B2Feb 19, 2013

AZO compound, and pigment dispersant, pigment composition, pigment dispersion and toner including the azo compound

CANON KK57 citations98
US7833685B2Nov 16, 2010

Coloring compound and yellow toner containing the coloring compound

CANON KK60 citations98
US9829814B2Nov 28, 2017

Toner

CANON KK33 citations94
US8815484B2Aug 26, 2014

Toner including compound having bisazo skeleton

CANON KK52 citations94
US9715187B2Jul 25, 2017

Method of producing a compound having a colorant structure, and toner containing a compound obtained by the production method

CANON KK23 citations93
US9556290B2Jan 31, 2017

Method 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 method

CANON KK22 citations93
US7288357B2Oct 30, 2007

Cyan toner and method of producing cyan toner

CANON KK31 citations93
US7264910B2Sep 4, 2007

Cyan toner and method of producing cyan toner

CANON KK35 citations93
US7504488B2Mar 17, 2009

Dye, dye production method and ink containing dye

CANON KK20 citations92
US7141342B2Nov 28, 2006

Magenta toner and process for producing magenta toner

CANON KK40 citations92
US7083667B2Aug 1, 2006

Colorant compound, ink, ink tank, recording unit, recording apparatus and recording process

CANON KK19 citations92
US10216107B2Feb 26, 2019

Toner and method of producing toner

CANON KK15 citations86
US10948839B2Mar 16, 2021

Toner 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 monomer

CANON KK7 citations84
US8343269B2Jan 1, 2013

Colorant compound

CANON KK17 citations83
US11086242B2Aug 10, 2021

Toner and method for producing toner

CANON KK6 citations73
US8936894B2Jan 20, 2015

Magenta toner containing compound having AZO skeleton

CANON KK4 citations73
US9618867B2Apr 11, 2017

Pigment dispersion and toner

CANON KK3 citations72
US7407540B2Aug 5, 2008

Coloring liquid, ink tank, recording unit, recording apparatus and recording method

CANON KK6 citations72
US9505723B2Nov 29, 2016

Compound, dispersant and toner

CANON KK4 citations71
US8962726B2Feb 24, 2015

Compound having bisazo skeleton, pigment dispersant containing the compound, pigment composition, pigment dispersion, ink and resist composition for color filter

CANON KK3 citations63
US8916318B2Dec 23, 2014

Black toner containing compound having azo skeleton

CANON KK3 citations63
US7598012B2Oct 6, 2009

Coloring compound and recording material using the same

CANON KK4 citations63
US8927187B2Jan 6, 2015

Cyan toner containing compound having azo skeleton

CANON KK3 citations62
US7834213B2Nov 16, 2010

Colorant compound and method of manufacturing the same as well as blue resist composition for use in color filter containing the same

CANON KK2 citations62
US7303615B2Dec 4, 2007

Colorant material, and water dispersion, ink, ink tank, recording unit, recording apparatus and recording method using the same

CANON KK4 citations61
US11702556B2Jul 18, 2023

Aqueous ink, ink cartridge and ink jet recording method

CANON KK0 citations59
US9298118B2Mar 29, 2016

Azo compound, pigment dispersant containing the azo compound, pigment composition, pigment dispersion and toner

CANON KK1 citations52
US9249308B2Feb 2, 2016

Compound having bisazo dye skeleton, pigment composition containing the same, pigment dispersion, ink, and color filter resist composition

CANON KK0 citations52
US7985288B2Jul 26, 2011

Colorant compound and ink including the colorant compound

CANON KK1 citations52
US7981207B2Jul 19, 2011

Dye compound and ink containing dye compound

CANON KK0 citations52
US7981205B2Jul 19, 2011

Dye compound and ink containing dye compound

CANON KK0 citations52
US9593243B2Mar 14, 2017

Compound, pigment dispersing agent, pigment composition, pigment dispersion and toner containing said compound

CANON KK1 citations51
US7973197B2Jul 5, 2011

Colorant compound and blue resist composition for use in color filter containing the same

CANON KK0 citations51
US12215240B2Feb 4, 2025

Aqueous ink, ink cartridge and ink jet recording method

CANON KK0 citations49
US9176407B2Nov 3, 2015

Toner and method for manufacturing toner particles

CANON KK0 citations42
US10087328B2Oct 2, 2018

Compound having azo skeleton, pigment dispersant, pigment composition, pigment dispersion, and toner

CANON KK0 citations41
US9926450B2Mar 27, 2018

Compound having azo skeleton structure, pigment-dispersing agent, pigment composition, pigment dispersion, and toner

CANON KK0 citations41
US9834683B2Dec 5, 2017

Compound having azo skeleton structure, pigment dispersant, pigment composition, pigment dispersion, and toner

CANON KK0 citations41
US9777087B2Oct 3, 2017

Polymer including phthalocyanine structure, method for producing the polymer, pigment composition, pigment dispersion, and toner

CANON KK0 citations41
US9625845B2Apr 18, 2017

Compound having azo skeleton structure, pigment-dispersing agent, pigment composition, pigment dispersion, and toner

CANON KK0 citations41
US9470995B2Oct 18, 2016

Compound having azo skeleton and pigment dispersant, pigment composition, pigment dispersion, and toner containing the compound

CANON KK0 citations41
US9410038B2Aug 9, 2016

Compound, ink, ink cartridge and ink jet recording method

CANON KK0 citations41
US8367288B2Feb 5, 2013

Yellow toner

CANON KK0 citations41

MURAI YASUAKI

3 patents

TANAKA MASATAKE

2 patents

KAWAMURA MASASHI

1 patent

INOUE KEI

1 patent

Showing the top 50 of 51 patents by PatentIndex Score.