Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
May 26, 2009
Patent Application Number
11157874
Date Filed
June 22, 2005
Patent Primary Examiner
Patent abstract
In a toner having toner particles which comprise toner base particles containing at least a colorant, a release agent and a polar resin, and an inorganic fine powder, the polar resin is a resin having at least a polyester unit, synthesized in the presence of an aromatic carboxylic acid titanium compound used as a catalyst, and has an acid value of from 3 mgKOH/g to 35 mgKOH/g. The toner base particles are obtained by carrying out granulation in an aqueous medium, and the toner has a weight-average particle diameter of from 4.0 μm to 10.0 μm.
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