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:
Mar. 14, 2006
Filed:
Jul. 25, 2003
Applicants:
Mauricio Esguerra, Unterhaching, DE;
Ralph Lucke, Miesbach, DE;
Inventors:
Mauricio Esguerra, Unterhaching, DE;
Ralph Lucke, Miesbach, DE;
Assignee:
Epcos AG, Munich, DE;
Primary Examiner:
Int. Cl.
CPC ...
H01F 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A magnetic device and method for making it involve a magnetic device specifically constructed of grains in a matrix. The matrix may be cement or plaster. The grains have an average diameter that is greater than their magnetic domains. The device may be applied to shielding applications for frequencies ranging from 100 kHz to 10 GHz. The shielding may be applied to walls of a building, consumer products such as magnetic disks, and the like. The grains may be any ferromagnetic material, including ferrite.