Security marking and security mark

Abstract

The application discloses a security mark consisting of a plurality of layers, of which the cover layers are highly conductive films and the layers of the card core are films of varying transparency. One layer carries information, which can be read directly, if desired, above a security print, while the transparent conductive layer has an additional security markings, such as biometric or product identifiers marking which can be read conductively only with the aid of a special reader. All the layers consist of polymers, papers or mixtures which can be fused together to form a laminate which is fused together. The conductive layers form conductive traces which may be formed with single-walled or multi walled nano tubes or they can be formed from multiple layers or dispersions containing, carbon nano tubes, carbon nano tubes / antimony tin oxide, carbon nano tubes / platinum, or carbon nano tubes / silver, carbon, silver or carbon nano tubes / silver-cloride. An alternative layer can be formed from a separate conductive layer or suitable dispersion and the encoding accomplished by overlaying a nonconductive trace.

Description

REFERENCE TO RELATED APPLICATIONS [0001] This invention claims priority to U.S. Provisional Application No. 60 / 536,775 entitled Identity Card, filed on Jan. 15, 2004.FIELD OF THE INVENTION [0002] The present invention relates to a security marking formed from a layer of conductive materials that is patterned so as to have identification information captured therein. The conductive coating layer may be formed by printing, etching, or formulation. The conductive layer can be made from carbon nano tube conductive ink, conductive films or conductive inks formed from metals and oxides, but is not so limited. As will be shown, the conductive coating layer may be applied to security cards, or directly to products to prevent counterfeiting. [0003] In preferred embodiments, the present invention relates to a security marking consisting of several layers of materials. For example, the present security marking may consist of a layer of conductive material sections with an overlying layer of pr...

AI Technical Summary

Benefits of technology

[0033] It is an advantage of the present invention to provide an improved security marking system which can be used as an individual identification system, gaming mark or a security mark for identification of forged or non licensed product replicas.

Problems solved by technology

When it is laminated to paper cores, it is unfortunately a disadvantage that these laminations can be opened up relatively easily and are thus accessible to manipulations and forgeries of any kind.

However the need to have the data stored on a processing unit increases the cost and complexity.

However the need to have the data stored on a processing unit increases the cost and complexity.

However, since the two dimensional code can be read by conventional means the two dimensional code can be readily forged because it does not have a built in verifying mechanism to allow the reader to check for authenticity.

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