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. 10, 2016
Filed:
Nov. 28, 2012
Canon Kabushiki Kaisha, Tokyo, JP;
Kenichi Kaku, Newcastle Upon Tyne, GB;
Wataru Kitamura, Abiko, JP;
Yuka Ishiduka, Suntou-gun, JP;
Mai Murakami, Kashiwa, JP;
Ryoichi Tokimitsu, Kashiwa, JP;
Hideaki Nagasaka, Suntou-gun, JP;
Takeshi Murakami, Numazu, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
Provided are an electrophotographic photosensitive member in which a variation in the light-area potential is suppressed even when the electrophotographic photosensitive member is repeatedly used for a long time in a high-temperature, high-humidity environment, a method of producing the electrophotographic photosensitive member, and a process cartridge and an electrophotographic apparatus that include the electrophotographic photosensitive member. The electrophotographic photosensitive member includes a support, an undercoat layer, and a photosensitive layer, wherein the undercoat layer contains a urethane resin and zinc oxide particles whose surfaces have been treated with a particular amount of an aminosilane compound.