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. 01, 1990
Filed:
Dec. 01, 1988
Applicant:
Inventor:
Hideaki Karamon, Miyagi, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F / ;
U.S. Cl.
CPC ...
428692 ; 148304 ; 148305 ; 2041922 ; 428900 ;
Abstract
The present invention provides, by combining as the composition of the soft magnetic thin film transition metals and two different kinds of metalloid (semiconductor) elements, herein B, C and Si, a novel amorphous soft magnetic thin film having a structure wherein two phases, namely the ferromagnetic amorphous phase and the non-magnetic amorphous phase and finely dispersed for realizing a soft magnetic thin film that is superior in high frequency characteristics and that may be applied to the magnetic head technology for short wavelength recording that may be advantageously employed with a high coercive force medium.