Patent · US Active

Layer element

US10189295B2 · kind B2 · utility

0Cited by

4References

19Claims

0Family size

Assignee

GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBH · DE

Inventors

Hans Lochbihler · Hersbruck, DE
André Gregarek · Munich, DE
Josef Schinabeck · Tegernsee, DE

Key dates

Filing date	Apr 16, 2015
Grant date	Jan 29, 2019
Priority date	—
Expiry date	Jul 17, 2035

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB42D25/373
WIPO fieldOther consumer goods
WIPO sectorOther fields

Abstract

A method for manufacturing a partially demetallized layer element comprises the steps of: supplying a layer element having a carrier substrate with a face that has at least one first and one second region, wherein the first region has a first structure which is different from a second structure of the second region, and at least one metal layer is arranged on the face of the carrier substrate; and removing the metal layer by exciting surface plasmon polaritons by means of electromagnetic radiation in the first region having the first structure. A layer element and an apparatus for carrying out the method are provided.

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