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. 03, 1977
Filed:
Nov. 14, 1974
Applicant:
Inventors:
Hirokuni Kawashima, Tokyo, JA;
Kiyoshi Suzuki, Kawasaki, JA;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
96-15 ; 252501 ; 423101 ; 4235 / ;
Abstract
CdS for electrophotography is produced by contacting sulfide ion, cadmium ion and a donor impurity of Group IIIa or IIIb of the Periodic Table and firing the resulting CdS. An acceptor impurity may be added to the first step or the second step.