Magnetic devices

Details Magnetic devices Magnetic devices

H - Electricity

01

F

340/124.3

H01F 10/00 (2006.01) C22C 45/04 (2006.01) G01V 15/00 (2006.01) G08B 13/24 (2006.01) H01F 10/13 (2006.01) H01F 10/18 (2006.01) H01F 10/28 (2006.01) H01F 10/30 (2006.01)

Patent

CA 1291244

ABSTRACT MAGNETIC DEVICES Magnetic devices are disclosed which include an article comprising a substrate and a thin coating of a magnetic material, characterised in that: (a) said substrate is a flexible, laminar material; (b) said magnetic material is an amorphous metal glass of high intrinsic magnetic permeability, with low or substantially zero magnetostriction, and with low coercivity; and (c) said thin coating of a magnetic material is not greater than 6 microns in thickness. This article can be used as, or to make, an antipilferage tag or marker. Deactivation materials and configurations are also disclosed, as well as techniques, in particular sputtering, for producing such a tag.

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