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:
May. 29, 2018
Filed:
Mar. 27, 2017
Canon Kabushiki Kaisha, Tokyo, JP;
Tsuyoshi Shimada, Toride, JP;
Ryoichi Tokimitsu, Kashiwa, JP;
Mai Murakami, Kashiwa, JP;
Kan Tanabe, Matsudo, JP;
Wataru Kitamura, Abiko, JP;
Haruhiko Mitsuda, Nagareyama, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
The present invention provides an electrophotographic apparatus in which the deterioration of electrical properties in repetitive use is suppressed even in the case where an electrophotographic photosensitive member absorbs moisture under a high-temperature and high-humidity environment. An undercoat layer of the electrophotographic photosensitive member provided in the electrophotographic apparatus contains (α) a metal oxide particle, (β) a particular benzophenone compound and (γ) a compound represented by the following formula (2). wherein Rto Reach independently represent a hydrogen atom, a hydroxy group, a halogen atom, an alkyl group, an alkoxy group or an amino group and Arepresents an alkenyl group having 2 or more and 4 or less carbon atoms.