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:
Oct. 15, 1996
Filed:
Apr. 20, 1995
Applicant:
Inventors:
Kazumasa Watanabe, Hino, JP;
Shingo Fujimoto, Hino, JP;
Yuanhu Pei, Hino, JP;
Toyoko Shibata, Hino, JP;
Assignee:
Konica Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
430 59 ; 430 70 ;
Abstract
An electrophotographic photoreceptor comprises a carrier transport material, wherein the material is a benzoquinone compound represented by the following Formula (1) or (2): ##STR1## wherein Ar.sub.1 and Ar.sub.2 independently represent an aryl group or an aromatic heterocyclic group; Z, Z.sub.1 and Z.sub.2 independently represent .dbd.C (CN).sub.2, .dbd.C (CO.sub.2 R'), .dbd.C(CN) (CO.sub.2 R), .dbd.C(CN) (COR) or .dbd.N(CN) in which R and R' represent a substituted or unsubstituted alkyl or aryl group; and B represents an arylene group or a divalent aromatic heterocyclic group.