Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate
2006-04-11
2006-04-11
Mullen, Thomas (Department: 2632)
Communications: electrical
Condition responsive indicating system
Specific condition
C148S304000
Reexamination Certificate
active
07026938
ABSTRACT:
A ferromagnetic element for use in a marker in a magnetomechanical electronic article surveillance system has improved magnetoresonant properties and/or reduced eddy current losses by virtue of having a fine domain structure having a maximum width of 1.5 times the thickness of the element and oriented transverse to the element axis, and an induced magnetic easy axis substantially perpendicular to the element axis, and having a hysteresis loop that is linear up to a magnetic field substantially equal to a magnetic field that ferromagnetically saturates the ferromagnetic element.
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Mullen Thomas
Schiff & Hardin LLP
Vacuumschmelze GmbH
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