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:
Mar. 06, 1990
Filed:
Sep. 14, 1988
Applicant:
Inventors:
Toshio Fukagai, Numazu, JP;
Kiyoshi Taniguchi, Numazu, JP;
Kayoko Yokoyama, Numazu, JP;
Katsuichi Ohta, Mishima, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
430 58 ; 430 60 ; 430 63 ; 430 65 ;
Abstract
An electrophotographic photoconductor is disclosed, which comprises an electroconductive support, an undercoat layer formed on the electroconductive support, comprising at least one metal oxide selected from the group consisting of zirconium oxide, magnesium oxide, calcium oxide, beryllium oxide and lanthanum oxide, and a photoconductive layer comprising a charge generating layer and a charge transporting layer, formed on the undercoat layer.