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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 10002704 B1

PDFFull Text
Date of Patent:
Jun. 19, 2018

Filed:

Nov. 27, 2013

Coil module

Applicant:

Dexerials Corporation, Tokyo, JP;

Inventors:

Tatsuo Kumura, Tochigi, JP;

Yusuke Kubo, Tochigi, JP;

Assignee:

DEXERIALS CORPORATION, Tokyo, JP;

Attorney:

Oliff PLC

Primary Examiner:

Tuyen Nguyen

Int. Cl.
CPC ...
H01F 5/00 (2006.01); H01F 27/28 (2006.01); H01F 27/29 (2006.01); H01F 27/255 (2006.01); H01F 38/14 (2006.01); H01Q 1/40 (2006.01); H01Q 7/06 (2006.01); H01F 27/36 (2006.01); H01F 17/04 (2006.01);
U.S. Cl.
CPC ...
H01F 27/2885 (2013.01); H01F 5/00 (2013.01); H01F 27/255 (2013.01); H01F 27/2804 (2013.01); H01F 27/2871 (2013.01); H01F 27/29 (2013.01); H01F 27/365 (2013.01); H01F 38/14 (2013.01); H01Q 1/40 (2013.01); H01Q 7/06 (2013.01); H01F 2017/048 (2013.01);
Abstract

A coil module is provided which has been reduced in size and thickness by incorporating a material and a structure resistant to magnetic saturation. The coil module includes a magnetic shielding layer containing a magnetic material, and a spiral coil. The magnetic shielding layer has a plurality of magnetic resin layers containing magnetic particles, and at least a portion of the spiral coil is buried in a portion of the magnetic resin layers. This allows a reduction in size and thickness while achieving a heat dissipation effect by the magnetic resin layers. In addition, since magnetic resin layers resistant to magnetic saturation are provided, the coil inductance changes only slightly even in an environment where a strong magnetic field is applied, and thus stable communication can be provided.

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