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:
Oct. 01, 2019
Filed:
Jun. 04, 2018
Canon Kabushiki Kaisha, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
Provided is an electrophotographic photosensitive member, including: a support; a charge-generating layer on the support; a charge-transporting layer on the charge-generating layer; and a protective layer on the charge-transporting layer, wherein the protective layer contains the following components (α), (β), and (γ): (α) a polymer of a hole-transportable compound; (β) a polycarbonate resin; and (γ) a hole-transportable compound, wherein a content of the component (β) in the protective layer is 0.01 mass % or more and 4.0 mass % or less with respect to a content of the component (α) in the protective layer, wherein a content of the component (γ) in the protective layer is 0.001 mass % or more and 3.0 mass % or less with respect to the content of the component (α) in the protective layer, and wherein the charge-transporting layer contains the component (γ).