EP 1145204 A2 20011017 - SECURITY DEVICE COMPRISING SOFT MAGNETIC THIN FILM
Title (en)
SECURITY DEVICE COMPRISING SOFT MAGNETIC THIN FILM
Title (de)
SICHERUNGSVORRICHTUNG MIT WEICHMAGNETISCHER DÜNNSCHICHT
Title (fr)
DISPOSITIF DE SECURITE COMPRENANT UN FILM MINCE A AIMANTATION TEMPORAIRE
Publication
Application
Priority
- EP 99936527 A 19990712
- EP 9904942 W 19990712
- EP 98202418 A 19980720
Abstract (en)
[origin: WO0005693A2] A security device such as an anti-pilferage label or authentication label comprises as security feature a (first) soft-magnetic thin film having a thickness ranging from 100 nm to 2000 nm. The thin film is composed of an amorphous CoxZryNbz alloy, where x, y and z are atomic percentages and fulfil following conditions: (a) x ranging between 80 and 95; (b) y and z ranging between 0 and 20; (c) y + z = 100 - x. Due to the high effective relative permeability mu r, and the direction of its easy axis, a label with a CoZrNb thin film is relatively independent of its geometry.
IPC 1-7
IPC 8 full level
G08B 13/24 (2006.01); H01F 10/12 (2006.01); H01F 10/13 (2006.01)
CPC (source: EP)
G08B 13/2408 (2013.01); G08B 13/2437 (2013.01); G08B 13/2442 (2013.01); H01F 10/132 (2013.01); H01F 10/265 (2013.01)
Citation (search report)
See references of WO 0005693A2
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0005693 A2 20000203; WO 0005693 A3 20020207; AT E225549 T1 20021015; AU 5159399 A 20000214; DE 69903352 D1 20021107; DE 69903352 T2 20030710; EP 1145204 A2 20011017; EP 1145204 B1 20021002
DOCDB simple family (application)
EP 9904942 W 19990712; AT 99936527 T 19990712; AU 5159399 A 19990712; DE 69903352 T 19990712; EP 99936527 A 19990712