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:
Mar. 24, 2026
Filed:
Mar. 14, 2023
Canon Kabushiki Kaisha, Tokyo, JP;
Hisasuke Kajihara, Ibaraki, JP;
Maki Imura, Kanagawa, JP;
Kentaro Kamae, Kanagawa, JP;
Yuu Nishimura, Chiba, JP;
Takaho Shibata, Tokyo, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
The toner comprises a toner particle that contains a binder resin, a polymer C, and a pigment, wherein at least a portion of the polymer C is bonded with at least a portion of the pigment; in solid-state NMR measurement at 60° C. using as a sample, a solid fraction collected according to a prescribed procedure in which the toner is dissolved in chloroform, transverse relaxation time T2 of a peak observed at 1.5 ppm to 2.5 ppm is 1.0 ms to 50.0 ms; and using a SP(J/cm)for a SP value of the binder resin and a SP(J/cm)for a SP value of the polymer C, the SPand the SPsatisfy a following formula (1).1.0≤ ()