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:
Sep. 21, 1993
Filed:
Aug. 03, 1992
Applicant:
Inventors:
Tetsuro Kanemaru, Tokyo, JP;
Hideyuki Takai, Yokohama, JP;
Itaru Yamazaki, Yokohama, JP;
Shinya Mayama, Yamato, JP;
Masato Tanaka, Kawasaki, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ; G03G / ; H04N / ;
U.S. Cl.
CPC ...
430 58 ; 430 66 ; 430 67 ; 430 59 ; 430 96 ; 355211 ; 358300 ; 358302 ;
Abstract
The present invention relates to an electrophotographic photosensitive member. The photosensitive member has an electroconductive support and a photosensitive layer formed thereon containing oxytitanium phthalocyanine, and a surface layer of the photosensitive member contains a copolymer having a first and second structural units represented by the formulas ##STR1## Further the invention relates to an electrophotographic apparatus, device unit, and facsimile machine utilizing the electrophotographic photosensitive member.