Patent · US Active

Security feature and method for manufacturing the same

US8573650B2 · kind B2 · utility

1Cited by

6References

21Claims

0Family size

Assignee

GIESECKE & DEVRIENT GMBH · DE

Inventors

André Gregarek · Munich, DE
Manfred Heim · Munich, DE
Bernhard Wiedner · Miesbach, DE

Key dates

Filing date	Jun 19, 2008
Grant date	Nov 5, 2013
Priority date	—
Expiry date	Nov 20, 2029

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB41M5/28
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A method for manufacturing a security feature for a security element, a security paper or a data carrier that exhibits a substrate into which at least one through opening and at least one marking in registration with the through opening are to be introduced. The method includes the steps of providing a substrate with a laser-modifiable marking substance at least in the region of the marking to be produced and, in the same operation, introducing at least one through opening into the substrate by the action of laser radiation at higher laser power and modifying the laser-modifiable marking substance in the marking region by the action of laser radiation at a lower laser power to produce at least one marking in registration with the through opening.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.