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. 30, 2018
Filed:
Aug. 07, 2014
Hitachi Metals, Ltd., Tokyo, JP;
Jibu Electric Co., Ltd., Osaka-shi, Osaka, JP;
HITACHI METALS, LTD., Tokyo, JP;
JIBU ELECTRIC CO., LTD., Osaka, JP;
Abstract
The present invention provides an Fe-based amorphous transformer magnetic core formed by stacking Fe-based amorphous alloy thin strips and satisfying the following (1) to (3) in a direct current B-H curve measured by applying a magnetic field of 80 A/m to the magnetic core:B80≧1.1 T  (1)0.5 T≦Br≦0.7 T  (2)B80−Br≧0.6 T  (3)wherein B80 represents a magnetic flux density (T) obtained when magnetization is performed in the magnetic field of 80 A/m, and Br represents a residual magnetic flux density (T) obtained when a magnetic field is changed to 0 A/m after magnetization is performed in a magnetic field of 80 A/m.