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. 11, 2025
Filed:
Jun. 24, 2022
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Yuzo Seino, Shizuoka, JP;
Daisuke Yoshiba, Shizuoka, JP;
Koki Inoue, Shizuoka, JP;
Yuki Masuda, Shizuoka, JP;
Assignee:
CANON KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G 9/097 (2006.01); G03G 9/08 (2006.01);
U.S. Cl.
CPC ...
G03G 9/09725 (2013.01); G03G 9/0819 (2013.01);
Abstract
An external additive for a toner comprising a silica particle surface-treated with a polyhydric acid metal salt particle, wherein the polyhydric acid metal salt particle is particle of a salt of a polyhydric acid and a titanium compound, and a toner comprising a toner particle, and an external additive for a toner on the surface of the toner particle, wherein the external additive for a toner is the above external additive for a toner.