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:
Jul. 28, 1992
Filed:
Sep. 17, 1990
Applicant:
Inventors:
Hideaki Matsuyama, Miyagi, JP;
Hideaki Karamon, Miyagi, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22C / ;
U.S. Cl.
CPC ...
148305 ; 148304 ; 148403 ; 148307 ; 148309 ; 148313 ; 148315 ;
Abstract
A novel soft magnetic amorphous alloy thin film which, on account of the composition of the film consisting in a combination of a transition metal, a metalloid or semiconducting element, namely B, C or Si and an oxide derived from the starting material, is endowed with a comminuted and dispersed structure of a magnetic amorphous phase and a nonmagnetic amorphous phase. The soft magnetic amorphous alloy thin film may be applied to a magnetic head for short wavelength recording which is required to cope with high frequency characteristics and high coercivity of the recording medium.