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. 01, 2026
Filed:
Jul. 19, 2023
Canon Kabushiki Kaisha, Tokyo, JP;
Satoshi Arimura, Shizuoka, JP;
Kosuke Fukudome, Tokyo, JP;
Kenta Kamikura, Kanagawa, JP;
Shohei Tsuda, Shizuoka, JP;
Yuta Komiya, Kanagawa, JP;
Toru Ishii, Shizuoka, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A toner comprising a toner particle, the toner particle comprising a binder resin and a boric acid, wherein, where the toner particle is subjected to ATR-IR analysis by using germanium as an ATR crystal in an ATR method, a peak corresponding to the boric acid is detected, the toner comprises a fatty acid metal salt on a surface of the toner particle, and a presence ratio of an boron element on the surface of the toner particle is 0.01 atomic % or less as measured by X-ray photoelectron spectroscopy.