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:
Jan. 26, 1982
Filed:
Sep. 05, 1980
Applicant:
Inventors:
Hiroshi Sakakima, Hirakata, JP;
Harufumi Senno, Yamatokoriyama, JP;
Yukihiro Yanagiuchi, Katano, JP;
Eiichi Hirota, Hirakata, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C21D / ;
U.S. Cl.
CPC ...
148108 ; 148 3155 ;
Abstract
Amorphous alloy films are heat-treated in the presence of a magnetic field directed in a particular direction so as to suppress induced magnetic anisotropy in the film. The directed magnetic field includes a vertical magnetic field whose direction is perpendicular to the plane of the film, and a rotating magnetic field whose direction is being rapidly changed within a parallel plane with respect to the plane of the amorphous alloy film.