Patent · US Active

Security element for protecting documents of value

US8740094B2 · kind B2 · utility

0Cited by

12References

21Claims

0Family size

Assignee

GIESECKE & DEVRIENT GMBH · DE

Inventors

Jurgen Schutzmann · Brackenheim, DE
Manfred Heim · Munich, DE
Dieter Stein
Friedrich Kretschmar · Munich, DE

Key dates

Filing date	Nov 21, 2007
Grant date	Jun 3, 2014
Priority date	—
Expiry date	Jun 5, 2028

Classification

Technology area (CPC G)Physics
CPC primaryG07D7/04
WIPO fieldControl
WIPO sectorInstruments

Abstract

The invention relates to a security element for protecting documents of value, which has magnetic material. A portion of a magnetic coding is arranged on the security element, which coding consists of several magnetic areas and several gap areas. The portion of the magnetic coding is arranged in a predetermined direction along the security element, for example perpendicularly to a transport direction of the security element or document of value through a magnet sensor. Concerning the length of the magnetic areas and of the gap areas of the magnetic coding, certain length conditions are predetermined, which are chosen in dependence on the magnet sensor employed.

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