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. 27, 1992
Filed:
Apr. 09, 1991
Applicant:
Inventors:
Haruki Kawada, Yokohama, JP;
Yoshihiro Yanagisawa, Atsugi, JP;
Yuko Morikawa, Kawasaki, JP;
Suomi Kurihara, Atsugi, JP;
Hiroshi Matsuda, Isehara, JP;
Hideyuki Kawagishi, Ayase, JP;
Kiyoshi Takimoto, Kawasaki, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
136263 ; 2502 / ; 250212 ; 357-8 ;
Abstract
A photoconductive device employs an organic film between a pair of electrodes where the organic film is a polymer having a carbazole skeleton and an imide linkage in a repeating unit of the general formula: ##STR1## where R.sup.1 denotes a tetravalent organic group having 5 to 13 carbons.