Title:
MAGNETIC COMPONENT, SOFT MAGNETIC METAL POWDER USED IN SAME, AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2014/141318
Kind Code:
A1
Abstract:
This magnetic component of an inductor, antenna, or the like and using a metal magnetic powder has a greater complex component of the magnetic permeability, which is loss in the GHz band. It is possible to suppress the loss coefficient in the GHz band to a low level by means of the magnetic component, which is formed from a soft magnetic metal powder that has iron as the primary component and that is characterized by having an average particle size of no greater than 300 nm, a coercivity (Hc) of 16-119 kA/m (200-1500 Oe), a saturation magnetization of at least 90 Am2/kg, and a volume resistivity measured by means of a four-point probe method of a molded body formed by vertically compressing 1.0 g of the metal powder at 64 MPa (20 kN) of at least 1.0×101 Ω·cm.
Inventors:
IKARI KAZUMASA (JP)
GOTOH MASAHIRO (JP)
YOSHIDA TAKAYUKI (JP)
GOTOH MASAHIRO (JP)
YOSHIDA TAKAYUKI (JP)
Application Number:
PCT/JP2013/001638
Publication Date:
September 18, 2014
Filing Date:
March 13, 2013
Export Citation:
Assignee:
DOWA ELECTRONICS MATERIALS CO (JP)
International Classes:
B22F1/16; B22F9/22; B22F9/26; H01F1/22; H01F1/33
Foreign References:
| JP2011246820A | 2011-12-08 | |||
| JP2010095751A | 2010-04-30 | |||
| JP2010103427A | 2010-05-06 | |||
| JP2006128535A | 2006-05-18 |
Other References:
See also references of EP 2801424A4
Attorney, Agent or Firm:
HIROKOH, MASAKI (JP)
Hiroyuki Masaki (JP)
Hiroyuki Masaki (JP)
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