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. 07, 2021
Filed:
Mar. 10, 2020
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Kenichi Nakayama, Numazu, JP;
Takeshi Kaburagi, Suntou-gun, JP;
Shintaro Kawaguchi, Yokohama, JP;
Shota Amano, Yokohama, JP;
Assignee:
CANON KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 9/08 (2006.01); G03G 9/087 (2006.01);
U.S. Cl.
CPC ...
G03G 9/08755 (2013.01); G03G 9/0819 (2013.01); G03G 9/0823 (2013.01); G03G 9/0827 (2013.01); G03G 9/08782 (2013.01);
Abstract
A toner comprising: a toner particle that includes a binder resin, and an external additive, wherein the toner particle includes a polyester resin on the surface; the toner particle includes a polyvalent metal element; where an electrical resistivity of the polyvalent metal element at 20° C. is denoted by A Ω·m, and an amount of the polyvalent metal element in the toner particle is denoted by B μmol/g, a following relationship is satisfied:0.025×10≤(1/)×≤4.500×10;