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:
Apr. 03, 1990
Filed:
Jan. 12, 1989
Applicant:
Inventors:
Kazuhiro Emoto, Nagaokakyo, JP;
Kozo Haino, Nagaokakyo, JP;
Assignee:
Mitsubishi Paper Mills Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
430 76 ; 430 77 ; 430 78 ; 430 79 ; 534804 ;
Abstract
This provides an electrophotographic photoreceptor high in durability and sensitivity which comprises an electroconductive support and, provided thereon, a photosensitive layer containing an azo pigment represented by the formula [I]: ##STR1## wherein A represents an aryl group, a heterocyclic group or an alkyl group, Z represents a hydrogen atom, --B or --CH.dbd.CH--B wherein B represents an aryl group, a heterocyclic group or an alkyl group and Cp represents a coupler residue.