Title:
MAGNETIC MATERIAL AND COIL COMPONENT EMPLOYING SAME
Document Type and Number:
WIPO Patent Application WO/2013/005454
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a new magnetic material with which further improvement in magnetic permeability is effected, and of providing a coil component employing such a magnetic material. According to the present invention, a magnetic material is provided wherein: a particle molding body (1) is provided in which a plurality of metallic particles (11) formed from an Fe-Si-M soft magnetic alloy (where M is a metallic element which oxidizes more readily than Fe) are molded; at least a portion of the periphery of each of the metallic particles (11) has oxide films (12) obtained by oxidizing the metallic particles (11); the particle molding body (1) is molded primarily through the bonding of the oxide films (12) which are formed on the peripheries of the respective adjacent metallic particles (11). The apparent density of the particle molding body (1) is 5.2g/cm3 or more, and is preferably 5.2-7.0g/cm3.
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Inventors:
OGAWA HIDEKI (JP)
TANADA ATSUSHI (JP)
TANADA ATSUSHI (JP)
Application Number:
PCT/JP2012/054439
Publication Date:
January 10, 2013
Filing Date:
February 23, 2012
Export Citation:
Assignee:
TAIYO YUDEN KK (JP)
OGAWA HIDEKI (JP)
TANADA ATSUSHI (JP)
OGAWA HIDEKI (JP)
TANADA ATSUSHI (JP)
International Classes:
H01F1/33; B22F1/16; B22F3/00; B22F3/24; C22C38/00; H01F1/14; H01F1/24; H01F1/26
Domestic Patent References:
| WO2009128427A1 | 2009-10-22 |
Foreign References:
| JP2011249774A | 2011-12-08 | |||
| JP2008195986A | 2008-08-28 | |||
| JP2005150257A | 2005-06-09 | |||
| JP2004162174A | 2004-06-10 | |||
| JP2010018823A | 2010-01-28 | |||
| JPH04147903A | 1992-05-21 |
Attorney, Agent or Firm:
KURIHARA, HIROYUKI (JP)
Hiroyuki Kurihara (JP)
Hiroyuki Kurihara (JP)
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Claims: