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:
Aug. 28, 2012
Filed:
Mar. 11, 2011
Masahito Koeda, Tokyo, JP;
Tomofumi Kuroda, Tokyo, JP;
Tomokazu Ishikura, Tokyo, JP;
Akihiro Harada, Tokyo, JP;
Hiroyuki Ono, Tokyo, JP;
Osamu Kido, Tokyo, JP;
Satoko Ueda, Tokyo, JP;
Masahito Koeda, Tokyo, JP;
Tomofumi Kuroda, Tokyo, JP;
Tomokazu Ishikura, Tokyo, JP;
Akihiro Harada, Tokyo, JP;
Hiroyuki Ono, Tokyo, JP;
Osamu Kido, Tokyo, JP;
Satoko Ueda, Tokyo, JP;
TDK Corporation, Tokyo, JP;
Abstract
The present invention provides a powder magnetic core low in the loss and high in the saturation magnetic flux density and a method for manufacturing the same. More specifically, the present invention provides a powder magnetic core that comprises a soft magnetic metal powder having an average particle size (D50) of 0.5 to 5 μm, a half width of diffraction peak in a <110> direction of α-Fe as measured by X-ray powder diffraction of 0.2 to 5.0°, and an Fe content of 97.0% by mass or more, the core having an oxygen content of 2.0% by mass or more.