Optically variable device comprising magnetic flakes

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United States of America Patent

PATENT NO 9827805
SERIAL NO

14710108

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Abstract

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An optically variable device may be manufactured by aligning magnetic flakes on a surface of an adhesive layer by applying the flakes onto the adhesive layer surface in presence of a magnetic field, and curing the adhesive layer having magnetic flakes adhered to the adhesive layer. When cured, the adhesive layer holds the magnetic flakes oriented, enabling subsequent encapsulation of the oriented magnetic flakes in a coating layer on the adhesive layer, without a substantial loss of orientation of the magnetic flakes.

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Patent Owner(s)

Patent OwnerAddress
JDS UNIPHASE CORPORATION1768 AUTOMATION PARKWAY SAN JOSE CA 95131

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Argoitia, Alberto Santa Rosa, US 85 1845
Delst, Cornelis Jan Fairfax, US 63 134
Laden, Patrick Petaluma, US 5 21

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