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.

Date of Patent:
Aug. 18, 1992

Filed:

Dec. 28, 1989
Applicant:
Inventors:

Shigeru Yagi, Kanagawa, JP;

Masato Ono, Kanagawa, JP;

Noriyoshi Takahashi, Kanagawa, JP;

Masayuki Nishikawa, Kanagawa, JP;

Yuzuru Fukuda, Kanagawa, JP;

Kenichi Karakida, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
430 66 ; 430 67 ;
Abstract

An electrophotographic photoreceptor comprising a conductive support having thereon an amorphous silicon photoconductive layer and a surface protective layer is disclosed, the surface protective layer having a laminated structure comprised of a lower layer comprising nitrogen-containing amorphous silicon and an upper layer comprising amorphous carbon. The photoreceptor causes no image deletion even after repeated use under a high temperature and high humidity condition and exhibits excellent scratch resistance.


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