Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Kozue Uratani0
Tomohisa Sano0
Yoshitaka Suzumura0
Yusuke Hasegawa0
Yuujirou Nagashima0
Date of Patent
June 4, 2019
0Patent Application Number
150521520
Date Filed
February 24, 2016
0Patent Citations Received
Patent Primary Examiner
Patent abstract
The toner has a toner particle that contains a binder resin, a colorant, a release agent, and a crystalline polyester, wherein the release agent contains an ester wax, and the peak top temperature of the maximum endothermic peak of the ester wax as measured with a differential scanning calorimeter is from 65° C. to 85° C., the ester wax satisfies specific conditions and the crystalline polyester satisfies specific conditions, the toner contains from 3.0 parts by mass to 20.0 parts by mass of the crystalline polyester per 100 parts by mass of the binder resin, and the mass ratio of the ester wax to crystalline polyester is from 25/75 to 75/25.
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