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. 23, 1991
Filed:
Feb. 26, 1990
Applicant:
Inventors:
Akira Itoh, Tsukuba, JP;
Kozo Haino, Tsukuba, JP;
Assignee:
Mitsubishi Paper Mills Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
430 59 ;
Abstract
The present invention provides an electrophotographic photoreceptor which comprises an electroconductive support and, provided thereon, a photosensitive layer containing at least one hydrazone compound represented by the following formula (I): ##STR1## wherein R.sup.1 and R.sup.2 each represents an alkyl, alkenyl, aralkyl, aryl or heterocyclic group which may be substituted, and at least one of R.sup.1 and R.sup.2 is an alkenyl group and R.sup.3 and R.sup.4 each represents a hydrogen atom, an alkyl group, an alkoxy group or a halogen atom.