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:
Aug. 31, 1999
Filed:
Oct. 07, 1997
Applicant:
Inventors:
Tomoko Taniguchi, Tokyo, JP;
Tatsuya Kodera, Tokyo, JP;
Assignee:
Mitsubishi Paper Mills Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
430 59 ; 430 56 ; 430 74 ;
Abstract
Disclosed is an electrophotographic photoreceptor having a high sensitivity, a high endurance and a high stability against repeated use which comprises a conductive support with a light-sensitive layer containing one or more hydrazone compounds represented by the following formula (I): ##STR1## wherein R.sub.1 represents an alkyl group of 5 or more carbon atoms, R.sub.2 represents a substituted or unsubstituted alkyl group, alkenyl group, aralkyl group, aryl group or heterocyclic group, and R.sub.3 and R.sub.4 each represent a hydrogen atom, an alkyl group, an alkoxy group or a halogen atom.