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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.:

US 9305690 B1

PDFFull Text
Date of Patent:
Apr. 05, 2016

Filed:

Apr. 30, 2014

Composite ferrite composition and electronic device

Applicant:

Tdk Corporation, Tokyo, JP;

Inventors:

Hiroki Choto, Tokyo, JP;

Takashi Suzuki, Tokyo, JP;

Shinichi Kondo, Tokyo, JP;

Yuya Oshima, Tokyo, JP;

Masahiro Endo, Tokyo, JP;

Masaki Takahashi, Tokyo, JP;

Assignee:

TDK CORPORATION, Tokyo, JP;

Attorney:

Oliff PLC

Primary Examiner:

Elvin G Enad

Assistant Examiner:

Ronald Hinson

Int. Cl.
CPC ...
H01F 5/00 (2006.01); H01F 27/28 (2006.01); H01F 1/40 (2006.01); H01F 1/37 (2006.01); H01F 17/00 (2006.01);
U.S. Cl.
CPC ...
H01F 1/401 (2013.01); H01F 1/37 (2013.01); H01F 17/0013 (2013.01);
Abstract

A composite ferrite composition comprises a magnetic material and a non-magnetic material. A mixing ratio of said magnetic material and said non-magnetic material is 20 wt %:80 wt % to 80 wt %:20 wt %. Ni—Cu—Zn based ferrite is used as the magnetic material. Oxides of Zn, Cu, and Si are at least included in a main component of said non-magnetic material. Borosilicate glass is included in a subcomponent of said non-magnetic material.

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Choto, Hiroki. (2016). Composite ferrite composition and electronic device (U.S. Patent No. 9305690). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9305690

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