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. 08, 2007
Filed:
Jan. 08, 2003
Eckhard Braun, Rodgau-Nieder Roden, DE;
Reinhard Plaschka, Windach, DE;
Eckhard Braun, Rodgau-Nieder Roden, DE;
Reinhard Plaschka, Windach, DE;
Giesecke & Devrient GmbH, Munich, DE;
Abstract
A method for producing a security document having printed imageproduced by steel intaglio printing and embossed microstructuresof an order of magnitude of less than 100 microns is carried out by one printing plateon which both the steel intaglio structures and the microstructures are present. The parts of the microstructures closest to printing plate surfaceare located 20 to 100 microns below the printing plate surface so that they are not touched and destroyed by the wiping cylinder. Alternative methods for producing a steel intaglio printing plate with integrated microstructures are provided. The microstructures can be used for embossing a diffractive relief or a blind embossing.