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:
May. 08, 1990
Filed:
Jul. 29, 1988
Applicant:
Inventors:
Masao Shigeta, Narashino, JP;
Tsutomu Choh, Yachiyo, JP;
Hiroyoshi Shimizu, Narita, JP;
Ippo Hirai, Yachiyo, JP;
Shohei Mimura, Tokyo, JP;
Atsushi Makimura, Sagamihara, JP;
Hiroshi Hosaka, Hoya, JP;
Assignees:
TDK Corporation, Tokyo, JP;
Tokyo Magnetic Printing Company, Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01F / ;
U.S. Cl.
CPC ...
148304 ; 75252 ; 75254 ; 428568 ;
Abstract
A powder comprising flakes of magnetically soft amorphous alloy having an average thickness of 0.01-1 .mu.m and an aspect ratio of 10-10,000 is blended with a binder to form a coating composition from which a magnetic shield is fabricated. The alloy is basically an Fe-B-Si ternary alloy in which iron may be partially replaced by another metal.