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. 18, 1997
Filed:
Dec. 22, 1995
Kunihiko Sekido, Yokohama, JP;
Hajime Miyazaki, Yokohama, JP;
Yoshio Kashizaki, Yokohama, JP;
Akihiro Senoo, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An electrophotographic photosensitive member is constituted by an electroconductive support, an intermediate layer disposed on the electroconductive support and a photosensitive layer disposed on the intermediate layer. The intermediate layer contains a copolymer having at least two species of a recurring unit having an amide acid structure and/or amide acid ester structure, thus resulting in good film-forming properties. The resultant photosensitive member is effective for providing a process cartridge and an electrophotographic apparatus respectively including the photosensitive member with a stable electric potential under any environmental condition to provide excellent images free from image defects for a long period.