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. 23, 1995
Filed:
May. 18, 1993
Shinya Mayama, Yamato, JP;
Naoto Fujimura, Yokohama, JP;
Toshiyuki Yoshihara, Kawasaki, JP;
Nobuyuki Hanami, Matsudo, JP;
Kiyoshi Sakai, Hachioji, JP;
Hideki Anayama, Yokohama, JP;
Junichi Kishi, Tokyo, JP;
Hideyuki Ainoya, Tokyo, JP;
Katsumi Aoki, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The present invention relates to an electrophotographic photosensitive member comprising an electroconductive support and a photosensitive layer formed thereon: the surface layer of the electrophotographic photosensitive member containing a first copolymer of a first construction unit represented by Formula (1) and a second construction unit represented by Formula (2), and a second copolymer of a third construction unit represented by Formula (3) and a fourth construction unit represented by Formula (4): ##STR1##