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. 26, 1992
Filed:
Jan. 16, 1990
Applicant:
Inventors:
Beat Schmidhalter, Oberkirch, CH;
Heinz Spahni, Frenkendorf, CH;
Assignee:
Ciba-Geigy Corporation, Ardsley, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ;
U.S. Cl.
CPC ...
428335 ; 428469 ; 4284722 ;
Abstract
A composite structure comprising a substrate having deposited thereon an electrically conductive metal film which is coated with a layer of porous metal oxide, wherein a thin, transparent and electrically conductive film of an anodically oxidizable metal is deposited on at least one surface of said substrate, the metal film having thereon a thin transparent coating of an oxide of said metal, and wherein the oxide coating has, distributed over the surface thereof, fine pores which are closed adjacent to the metal film. The composite material can be used as an optical information recording material or as a transparent electrode.