Patent · US Active

Security element

US9004540B2 · kind B2 · utility

7Cited by

11References

44Claims

0Family size

Assignee

GIESECKE & DEVRIENT GMBH · DE

Inventors

Michael Rahm · Bad Tölz, DE
Marius Dichtl · Munich, DE
Manfred Heim · Munich, DE
Hans Lochbihler · Hersbruck, DE
Thomas Kämpfe · Jena, DE
Thomas Pertsch · Hermsdorf, DE
Jorg Petschulat · Jena, DE
Ernst-Bernhard Kley · Jena, DE

Key dates

Filing date	Dec 17, 2008
Grant date	Apr 14, 2015
Priority date	—
Expiry date	Aug 16, 2030

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/24479
WIPO fieldOther consumer goods
WIPO sectorOther fields

Abstract

The present invention relates to a security element (20) for security papers, value documents and the like, having a feature region (24) that selectively influences incident electromagnetic radiation (30). According to the present invention, it is provided that the feature region (24) includes metallic nanopatterns (28) in which volume or surface plasmons are excited and/or resonance effects are caused by the incident electromagnetic radiation (30).

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