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:
Oct. 02, 1990
Filed:
Jan. 05, 1989
Applicant:
Inventors:
Masayuki Nishikawa, Kanagawa, JP;
Yumiko Komori, Kanagawa, JP;
Masaki Yokoi, Kanagawa, JP;
Masato Ono, Kanagawa, JP;
Noriyoshi Takahashi, Kanagawa, JP;
Yuzuru Fukuda, Kanagawa, JP;
Shigeru Yagi, Kanagawa, JP;
Ken-ichi Karakida, Kanagawa, JP;
Assignee:
Fuji Xerox Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
430 64 ; 430 66 ; 430 84 ;
Abstract
A positively and negatively chargeable electrophotographic photoreceptor is disclosed, comprising a substrate having thereon a charge blocking layer, an amorphous silicon photoconductive layer, and an amorphous silicon nitride surface layer provided in that order, wherein the charge blocking layer comprises of amorphous silicon nitride and the amorphous silicon photoconductive layer comprises of an i-type amorphous silicon containing 0.05 to 5.0 ppm of boron.