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:
Nov. 17, 1987
Filed:
Jul. 16, 1985
Applicant:
Inventors:
Masatoshi Hayakawa, Kanagawa, JP;
Koichi Aso, Kanagawa, JP;
Yoshitaka Ochiai, Kanagawa, JP;
Hideki Matsuda, Kanagawa, JP;
Kazuhiko Hayashi, Kanagawa, JP;
Wataru Ishikawa, Kanagawa, JP;
You Iwasaki, Kanagawa, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C / ;
U.S. Cl.
CPC ...
428630 ; 428611 ; 428678 ; 428679 ; 428680 ; 428681 ; 428682 ; 428928 ;
Abstract
A magnetic alloy thin film consisting essentially of a first Fe-Al-Si or Fe-Ni alloy thin film of high permeability and a second Fe-Si alloy thin film directly formed on the first thin film and having high saturation magnetic flux density. The ratio in thickness of the first and second films is preferably in the range of from 1:0.1 to 2.