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. 25, 2022
Filed:
Jul. 01, 2016
Tohoku Magnet Institute Co., Ltd., Sendai, JP;
Panasonic Corporation, Kadoma, JP;
Akihiro Makino, Sendai, JP;
Nobuyuki Nishiyama, Sendai, JP;
Kana Takenaka, Sendai, JP;
Yukio Nishikawa, Kadoma, JP;
Terutsugu Segawa, Kadoma, JP;
TOHOKU MAGNET INSTITUTE CO., LTD., Miyagi, JP;
PANASONIC CORPORATION, Osaka, JP;
Abstract
A method for producing a magnetic core includes a processing step of giving a desired shape to a strip made of an alloy composition, a heat-treating step of forming bcc-Fe crystals, and then a stacking step of obtaining a magnetic core having a shape. Here, the alloy composition is Fe—B—Si—P—Cu—C and has an amorphous phase as a primary phase. In the heat-treating step, the strip is heated up to a temperature higher than a crystallization temperature of the alloy composition at a high heating rate.