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:
Oct. 02, 1984
Filed:
Aug. 12, 1983
Applicant:
Inventors:
Assignee:
TDK Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C04B / ; H01F / ; H01F / ;
U.S. Cl.
CPC ...
252 6254 ; 252 6253 ; 174 / ;
Abstract
The present invention relates to an electromagnetic interference shielding material used for shielding radios and the like from electromagnetic waves emitted from a computer or the like. In the prior art, a zinc flame-sprayed shielding material is applied on the housing of a computer or the like to shield it from electromagnetic waves. The present invention provides an electromagnetic interference shielding material having an improved durability and shield effectiveness (SE) and comprising a ferromagnetic amorphous alloy having a conductivity of 10.sup.2 .OMEGA..sup.-1 .multidot.cm.sup.-1 or more and a permeability of 100 or more at 1 kHz.