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:
Jul. 21, 2022
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Kaname Watariguchi, Kanagawa, JP;
Kohei Makisumi, Shizuoka, JP;
Kenichi Kaku, Shizuoka, JP;
Haruyuki Tsuji, Kanagawa, JP;
Assignee:
CANON KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G 5/047 (2006.01); G03G 21/18 (2006.01);
U.S. Cl.
CPC ...
G03G 5/047 (2013.01); G03G 21/1814 (2013.01);
Abstract
Provided is an electrophotographic photosensitive member that includes a support, a charge generation layer on the support, and a charge transfer layer on the charge generation layer and that satisfies specifications on an EV curve based on a measurement method of NESA-EV curve. The electrophotographic photosensitive member can exhibit high character quality and a digital gradation characteristic in a low-line-number halftone while maintaining an analog gradation characteristic in a high-speed process.