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:
Sep. 09, 2014
Filed:
Dec. 20, 2010
Hitoshi Itabashi, Yokohama, JP;
Takashi Kenmoku, Mishima, JP;
Harumi Takada, Susono, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
To obtain a toner which has excellent charge rise and stability, tends to have a sharp charge distribution, has excellent pigment dispersion properties, exhibits no disarray in an image even during a high-speed copying operation, and can stably output high-resolution images. A toner comprising toner particle containing a binder resin, a colorant, resin PA, and resin PB, wherein the resin PA has unit A represented by Formula (1), the resin PB has unit B represented by Formula (2), a content 'a' of the unit A in the toner particle is 2.00 μmol/g or more, and a molar ratio b/a of the content 'a' and a content “b” of the unit B in the toner particle is 0.10 or more and 10.00 or less.