The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 26, 2009
Filed:
Jun. 22, 2005
Yushi Mikuriya, Numazu, JP;
Satoshi Handa, Shizuoka-ken, JP;
Yuji Moriki, Numazu, JP;
Yasushi Katsuta, Shizuoka-ken, JP;
Emi Tosaka, Shizuoka-ken, JP;
Yushi Mikuriya, Numazu, JP;
Satoshi Handa, Shizuoka-ken, JP;
Yuji Moriki, Numazu, JP;
Yasushi Katsuta, Shizuoka-ken, JP;
Emi Tosaka, Shizuoka-ken, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
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.