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:
Apr. 18, 2023
Filed:
May. 27, 2022
Canon Kabushiki Kaisha, Tokyo, JP;
Arihiro Yamamoto, Shizuoka, JP;
Syoji Inoue, Shizuoka, JP;
Masahiro Watanabe, Shizuoka, JP;
Toshirou Uchida, Shizuoka, JP;
Youhei Ikeda, Shizuoka, JP;
Masanori Yokoyama, Shizuoka, JP;
Hisao Kato, Kanagawa, JP;
Saki Sudo, Kanagawa, JP;
Tomoya Kawakami, Shizuoka, JP;
Masaaki Kimura, Shizuoka, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
The present invention is aimed at providing an electrophotographic cleaning blade that has excellent chipping resistance and can exhibit excellent cleaning performance. This cleaning blade is provided with an elastic member that includes a polyurethane and a support member that supports the elastic member, and cleans the surface of a member to be cleaned that is moving, by bringing a part of the elastic member into contact with the surface of the member to be cleaned. The average value of the elastic modulus of the elastic member obtained when measured using SPM is at least 15 MPa and not more than 470 MPa, and the coefficient of variation thereof is not more than 6.0%.