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 9208932 B1

Date of Patent:

Dec. 08, 2015

Filed:

Oct. 03, 2013

Magnetic powder, forming method thereof and magnetic sheet

Applicant:

Nec Tokin Corporation, Sendai-shi, Miyagi, JP;

Inventor:

Toshiyuki Igarashi, Sendai, JP;

Assignee:

NEC TOKIN CORPORATION, Sendai-shi, Miyagi, JP;

Attorney:

Holtz, Holtz, Goodman & Chick PC

Primary Examiner:

Carol M Koslow

Int. Cl.

CPC ...

H01F 1/24 (2006.01); H01F 1/00 (2006.01); H01F 1/153 (2006.01); H01F 1/28 (2006.01); H01F 1/20 (2006.01); H01F 1/26 (2006.01); H01F 1/33 (2006.01); B22F 1/00 (2006.01); B22F 1/02 (2006.01); B22F 5/00 (2006.01); B22F 9/00 (2006.01); B22F 9/04 (2006.01);

U.S. Cl.

CPC ...

H01F 1/0027 (2013.01); B22F 1/0055 (2013.01); B22F 1/02 (2013.01); B22F 5/006 (2013.01); B22F 9/002 (2013.01); H01F 1/15383 (2013.01); H01F 1/20 (2013.01); H01F 1/26 (2013.01); H01F 1/28 (2013.01); H01F 1/33 (2013.01); B22F 2009/047 (2013.01); B22F 2999/00 (2013.01); H01F 1/15375 (2013.01); H01F 1/24 (2013.01); Y10T 428/2991 (2015.01);

Abstract

A magnetic powder comprises a first magnetic particle, one or more inorganic insulating particles and one or more second magnetic particles. The first magnetic particle is made of a soft magnetic metal. The first magnetic particle has a flat shape. The inorganic insulating particles are attached to the first magnetic particle. The inorganic insulating particles partially cover the first magnetic particle. Each of the second magnetic particles is made of a soft magnetic metal. Each of the second magnetic particles has a flat shape. The second magnetic particles are attached to the first magnetic particle via the inorganic insulating particles.

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