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. 30, 2025
Filed:
Jul. 29, 2022
Canon Kabushiki Kaisha, Tokyo, JP;
Kohei Makisumi, Shizuoka, JP;
Kaname Watariguchi, Kanagawa, JP;
Kenichi Kaku, Shizuoka, JP;
Haruyuki Tsuji, Kanagawa, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
Provided is an electrophotographic photosensitive member having a feature in that, in a graph that is obtained by a method of measuring an EV curve, and that has a horizontal axis representing I and a vertical axis representing V, when V at I=0.500 [μJ/cm] is represented by V[V], a maximum value of S [V·μJ/cm] represented by S=I·(V−V) in a range of I=0.000 to 0.030 [μJ/cm] is represented by S[V·μJ/cm], and a product of a light amount I[μJ/cm] on the horizontal axis and a potential V[V] on the vertical axis at a point of intersection between an approximate straight line in a range of I=0.000 to 0.010 [μJ/cm] and an approximate straight line in a range of I=0.490 to 0.500 [μJ/cm] is represented by S=I·(V−V) [V·μJ/cm], a ratio of Sto S, which is represented by AR=S/S, satisfies AR≤0.10.