Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Noriaki Sakamoto0
Date of Patent
November 16, 2021
0Patent Application Number
171013420
Date Filed
November 23, 2020
0Patent Primary Examiner
Patent abstract
A toner includes toner particles and zinc stearate particles. The toner particles each include a toner mother particle containing a binder resin. The zinc stearate particles have a 50% volume cumulative diameter of at least 3.0 μm and no greater than 6.0 μm. A presence ratio of the zinc stearate particles having a particle diameter of no greater than 1.0 μm is no greater than 2.0% by volume relative to a total amount of the zinc stearate particles. A presence ratio of the zinc stearate particles having a particle diameter of at least 10.0 μm is no greater than 2.0% by volume relative to the total amount of the zinc stearate particles.
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