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. 17, 2024
Filed:
Apr. 25, 2023
Electrophotography cleaning blade, process cartridge, and electrophotographic image formation device
Canon Kabushiki Kaisha, Tokyo, JP;
Hidekazu Matsuda, Shizuoka, JP;
Arihiro Yamamoto, Shizuoka, JP;
Toshirou Uchida, Shizuoka, JP;
Kenya Terada, Shizuoka, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An electrophotographic cleaning blade, which includes the following: an elastic member containing polyurethane; and a support member supporting the elastic member, and cleaning a surface of a member to be cleaned in motion, by contact of part of the elastic member against the surface of the member to be cleaned, wherein the elastic member has, at least on the tip side, a plate shape having a main surface facing the member to be cleaned and a leading end surface that forms a tip side edge together with the main surface, and a coefficient of variation of area ratios of white regions in each of sections of a binarized image created from grayscale phase image obtained from the leading end surface, is 20.00 or less, and a value of HM-HMis larger than 0.10 N/mm.