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:
Nov. 28, 2017
Filed:
May. 12, 2016
Canon Kabushiki Kaisha, Tokyo, JP;
Makoto Fukatsu, Suntou-gun, JP;
Manami Haraguchi, Yokohama, JP;
Atsushi Nakamoto, Tokyo, JP;
Masayoshi Kato, Tokyo, JP;
Kazuhisa Kemmochi, Suntou-gun, JP;
Takahiro Kawamoto, Yokohama, JP;
Takeshi Yamamoto, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
There is provided a toner including toner base particles and an external additive in which the external additive is prevented from being buried in the base particles. The toner can maintain a high transfer efficiency over an extended period of use. The toner includes: (1) toner base particles containing a cycloolefin copolymer and a polyethylene; or (2) toner base particles whose surfaces contain a resin having an elastic deformation rate of 70% or more and a melting temperature of 125.0° C. or less.