Security feature and method for producing a security feature

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United States of America Patent

PATENT NO 9908360
SERIAL NO

13377276

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Abstract

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The invention relates to a security feature for securing documents of value having a plurality of microcapsules, which respectively have a wall and in which is respectively contained a liquid medium in which are distributed several magnetic particles which are movable in the liquid medium and whose arrangement within the microcapsule is changeable by the action of a magnetic field, whereby the magnetic particles are configured to arrange themselves within the microcapsule such that they form a light-diffractive structure.

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Patent Owner(s)

  • GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBH

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kecht, Johann Munich, DE 30 68
Steinlein, Stephan Munich, DE 14 46

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