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:
Jul. 14, 1992
Filed:
Jun. 19, 1990
Applicant:
Inventors:
Shigenori Otsuka, Omiya, JP;
Mamoru Nozomi, Machida, JP;
Assignee:
Mitsubishi Kasei Corporation, Tokyo, JP;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
430126 ; 430 56 ; 430 59 ;
Abstract
An electrophotographic photoreceptor having an electrically conductive substrate and a photosensitive layer formed thereon, the photosensitive layer comprising a charge-generating agent, an organic charge-transporting agent and an anti-oxidant having the general formula: ##STR1## wherein R.sup.1 and R.sup.2 are independently alkyl groups, is disclosed herein. The electrophotographic photoreceptor according to this invention has an improved durability in repeated copying operations and therefore a prolonged life.