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:
Apr. 13, 2021
Filed:
Dec. 27, 2019
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Masatake Tanaka, Yokohama, JP;
Taiji Katsura, Suntou-gun, JP;
Masamichi Sato, Mishima, JP;
Shohei Kototani, Suntou-gun, JP;
Kentaro Yamawaki, Mishima, JP;
Tsuneyoshi Tominaga, Suntou-gun, JP;
Assignee:
CANON KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 9/08 (2006.01); G03G 9/097 (2006.01); G03G 9/087 (2006.01);
U.S. Cl.
CPC ...
G03G 9/09775 (2013.01); G03G 9/0819 (2013.01); G03G 9/08755 (2013.01); G03G 9/09725 (2013.01);
Abstract
A toner containing: a toner particle that contains a binder resin and an external additive, wherein the external additive contains an organosilicon polymer fine particle, the binder resin contains an amorphous resin and a crystalline polyester resin, a content of the crystalline polyester resin in the binder resin is from 5 to 30 mass %, and the crystalline polyester resin contains from 5 to 25 mass % of a component having a molecular weight of not more than 2,500.