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:
Jun. 30, 2026
Filed:
Oct. 17, 2024
Canon Kabushiki Kaisha, Tokyo, JP;
Hiroomi Kojima, Kanagawa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An electrophotographic member with an endless shape, the electrophotographic member comprising: a cylindrical film; and a surface layer on an outer circumferential surface of the cylindrical film, wherein the cylindrical film comprises: a shrinkage rate αp in a first direction serving as a circumferential direction of the cylindrical film and a shrinkage rate αa in a second direction orthogonal to the circumferential direction, both of which are 2.0% or more; and a crystalline polyester as a binder, and roughness forming particles dispersed in the binder, the surface layer includes protruded portions caused by the roughness forming particles on an outer surface opposite to a surface facing the cylindrical film, and the cylindrical film further comprises an amorphous polyester, and the amorphous polyester extends in the first direction and the second direction around at least the roughness forming particles.