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. 17, 1990
Filed:
Sep. 16, 1988
Applicant:
Inventors:
Ryouichi Kitajima, Numazu, JP;
Satoshi Otomura, Numazu, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
430 56 ; 430 62 ; 430531 ; 430533 ; 430930 ;
Abstract
An electrophotographic photoconductor is disclosed, which comprises a flexible film-type substrate, an electroconductive layer formed on a front surface of the substrate, a photoconductive layer formed on the electroconductive layer, and a curl prevention layer formed on the back side of the substrate opposite to the back side thereof, in which the curl prevention layer comprises one resin component selected from the group consisting of a polysulfone resin and a polyarylate resin.