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:
Jun. 05, 1990
Filed:
Oct. 25, 1988
Applicant:
Inventors:
Yoshiaki Takei, Hachioji, JP;
Eiichi Sakai, Hachioji, JP;
Assignee:
Konica Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
430 66 ; 430 69 ;
Abstract
An electrophotographic photoreceptor is disclosed, which is improved in layer casting property, mechanical strength and scratch and abrasion resistance, and also improved in electric property in repetitive use. The photoreceptor is comprised of a support having thereon a photoreceptive layer, and a surface portion of the layer, which is outermost from the support, contains a polycarbonate having at least one of principal repetition units represented by the following formulas I and II, and a compound having a hindered phenol structural unit in the molecules thereof; ##STR1##