The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 11, 2006
Filed:
Apr. 23, 2004
Applicant:
Giselher Herzer, Bruchkoebel, DE;
Inventor:
Giselher Herzer, Bruchkoebel, DE;
Assignee:
Vacuumschmelze GmbH, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08B 13/14 (2006.01);
U.S. Cl.
CPC ...
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.