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:
Dec. 05, 2023
Filed:
Jul. 16, 2021
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Kazuyuki Sato, Kanagawa, JP;
Tomohisa Sano, Shizuoka, JP;
Assignee:
CANON KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G 9/087 (2006.01); G03G 9/093 (2006.01);
U.S. Cl.
CPC ...
G03G 9/09371 (2013.01); G03G 9/0874 (2013.01); G03G 9/08755 (2013.01); G03G 9/08782 (2013.01); G03G 9/09321 (2013.01);
Abstract
A toner comprising a toner particle comprising a core particle comprising a binder resin and a wax, and a shell formed on a surface of the core particle, wherein the wax comprises a wax A, the shell comprises a resin comprising a functional group B, the wax A has a surface charge density DA of −0.0080 to −0.0025, and an absolute difference |DA−DB| between the surface charge density DA of the wax A and a surface charge density DB of the functional group B is not more than 0.0025.