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:
Feb. 11, 2020
Filed:
May. 28, 2019
Canon Kabushiki Kaisha, Tokyo, JP;
Nobuhiro Nakamura, Numazu, JP;
Tsutomu Nishida, Mishima, JP;
Atsushi Okuda, Yokohama, JP;
Yuka Ishiduka, Suntou-gun, JP;
Hiroyuki Watanabe, Suntou-gun, JP;
Hideharu Shimozawa, Numazu, JP;
Kenichi Kaku, Suntou-gun, JP;
Koichi Nakata, Tokyo, JP;
Haruki Mori, Ichikawa, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
An electrophotographic photosensitive member suppressing potential variation due to repeated use is provided. The electrophotographic photosensitive member is an electrophotographic photosensitive member including a support, a photosensitive layer and a protective layer in this order, wherein the protective layer contains: a resin including a structure represented by a general formula (1) and a structure represented by a general formula (2); and a compound represented by a general formula (3), the molar ratio of the proportion of the structure represented by the general formula (2) to the proportion of the structure represented by the general formula (1) in the resin is 0.0002 to 0.1000 in a molar ratio, and the molar ratio of the content of the compound represented by the general formula (3) to the content of the structure represented by the general formula (1) in the resin in the protective layer is 0.0002 to 0.1000 in a molar ratio.