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:
Jan. 13, 2026
Filed:
Jan. 19, 2023
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Ryoichi Tokimitsu, Chiba, JP;
Haruhiko Mitsuda, Chiba, JP;
Jun Ohira, Ibaraki, JP;
Toshiyasu Shirasuna, Shizuoka, JP;
Ikuyo Kuroiwa, Tokyo, JP;
Tsuyoshi Shimada, Chiba, JP;
Takanori Ueno, Kanagawa, JP;
Kenichi Ikari, Chiba, JP;
Eileen Takeuchi, Tokyo, JP;
Assignee:
CANON KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G 5/07 (2006.01); G03G 5/05 (2006.01); G03G 5/147 (2006.01);
U.S. Cl.
CPC ...
G03G 5/071 (2013.01); G03G 5/0564 (2013.01); G03G 5/14726 (2013.01); G03G 5/14791 (2013.01);
Abstract
An electrophotographic photosensitive member includes a surface layer which exhibits excellent dispersibility of fluorine atom-containing resin particles, and suppresses the occurrence of ghost images. The surface layer contains a fluorine atom-containing resin particle, a binder material, and a polymer A having specific structural units.