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. 23, 2025
Filed:
Feb. 22, 2024
Canon Kabushiki Kaisha, Tokyo, JP;
Atsushi Hori, Chiba, JP;
Haruki Mori, Chiba, JP;
Shota Inoue, Ibaraki, JP;
Kaoru Okamoto, Chiba, JP;
Masayuki Onuma, Chiba, JP;
Yusuke Baba, Kanagawa, JP;
Takeshi Suzuki, Kanagawa, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
An electrophotographic member comprising: a base material; an elastic layer on the base material; and a surface layer on the elastic layer, wherein the elastic layer comprises silicone rubber, the surface layer comprises fluoro rubber, a thickness of the surface layer is 3 μm or more, an elastic deformation power ηIT calculated from a load displacement curve, obtained with a nanoindentation test according to ISO 14577 by bringing a Vickers indenter into contact with an outer surface of the surface layer and setting a test load at 120 μN, is 30 to 50%, and a Martens hardness determined by the nanoindentation test at the outer surface of the surface layer is 12.0 to 18.0 N/mm.