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:
Apr. 02, 2013
Filed:
Jul. 27, 2010
Günter Endres, München, DE;
Georg Kruse, Aschheim, DE;
Josef Riedl, Attenkirchen, DE;
Giesecke & Devrient GmbH, München, DE;
Abstract
The invention relates to a data carrier into which, by means of a laser beam, identifiers are introduced that are visible in the form of irreversible changes, caused by the laser beam, in the optical properties of the data carrier. According to the present invention, the data carrier comprises a laser-sensitive layer () that is opaque in the visible spectral range, and that is combined with a securing layer () that is metallized at least in a sub-area, the identifiers () being introduced by the laser beam simultaneously and in perfect register into the laser-sensitive layer () and the metallized sub-area () of the securing layer ().