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:
Oct. 23, 1990

Filed:

Jun. 19, 1989
Applicant:
Inventors:

Kenichi Karakida, Kanagawa, JP;

Shigeru Yagi, Kanagawa, JP;

Yuzuru Fukuda, Kanagawa, JP;

Masayuki Nishikawa, Kanagawa, JP;

Te Nam Roh, Kanagawa, JP;

Noriyoshi Takahashi, Kanagawa, JP;

Masato Ono, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
430 58 ; 430 65 ; 430 84 ; 430 95 ;
Abstract

An electrophotographic photoreceptor comprising a photoconductive layer, a first surface layer and a second surface layer formed in sequence on a support, said photoconductive layer being substantially composed of amorphous silicon, and each of said first and second surface layers being substantially composed of nitrogen-doped amorphous silicon, the concentration of nitrogen atoms in the second surface layer being higher than that in the first surface layer. The photoconductive layer is doped with atoms of an element of group III, or in at least a part of the photoconductive layer doped with germanium atoms in place of the element of group III.


Find Patent Forward Citations

Karakida, Kenichi. (1990). Electrophotographic photoreceptor having surface layers (U.S. Patent No. 4965154). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4965154

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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