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:
Dec. 05, 1989
Filed:
Sep. 29, 1988
Applicant:
Inventors:
Masaru Takeuchi, Uji, JP;
Kazuyuki Gotoh, Hirakata, JP;
Kenichiro Wakisaka, Hirakata, JP;
Kazuhiko Honma, Osaka, JP;
Takeo Fukatsu, Uji, JP;
Shoichi Nakano, Hirakata, JP;
Yukinori Kuwano, Katano, JP;
Assignee:
Sanyo Electric Co., Ltd., Moriguchi, JP;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
430 65 ; 430 84 ;
Abstract
An electrophotographic photosensitive sensor comprises a blocking layer, a photoconductive layer and a surface layer made mainly of microcrystalline or amorphous silicon and/or germanium and formed on a conductive substrate. At least one of the layers including the blocking layer, the photoconductive layer or the surface layer includes a multilayer which includes a plurality of constituent thin layers having different optical energy band gaps.