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:
May. 09, 1978
Filed:
Feb. 04, 1975
Applicant:
Inventors:
Yoshihiro Isono, Itami, JA;
Masataka Oda, Toyonaka, JA;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03Q / ;
U.S. Cl.
CPC ...
96 / ;
Abstract
An electrophotographic photosensitive plate which comprises an electrically conductive base, an inorganic photoconductive thin layer of selenium or selenium-arsenic formed on the conductive base, and an organic semiconductor layer, for example, of polyvinylcarbazole further deposited on the inorganic photoconductive layer. By the addition of a proper amount of nitrated benzoic acid derivatives to the upper organic semiconductor layer, the increase of residual potential and difficulty of maintaining surface potential in repeated use of the photosensitive plate are remarkably reduced.