Title:
MAGNETIC POWDER COMPOSITE, ANTENNA, AND ELECTRONIC DEVICE, AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2016/194936
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a magnetic compound having a small dielectric loss, an antenna formed from the magnetic compound, and an electronic device incorporating the antenna, by providing metal magnetic powder which is dispersed in a resin having a small dielectric loss. Provided is a magnetic powder composite containing metal magnetic powder, and at least one selected from carboxylic acids and anhydrides thereof, aromatic carboxylic acid esters, and derivatives thereof, wherein the magnetic powder composite has properties in which, when the magnetic powder composite is contained at 30 vol% in a thermoplastic resin having a tanδε of 0.05 or less at 1 MHz, the tanδε being specified in IEC60250 or JISC2138: 2007, the value of the real part μ' of the magnetic permeability is 1.45 or more, the value of the tanδμ is 0.1 or less, and the value of the tanδε is 0.05 or less at a measuring frequency of 2 GHz.
Inventors:
UEYAMA TOSHIHIKO (JP)
GOTOH MASAHIRO (JP)
YOSHIDA TAKAYUKI (JP)
BABA TAKUYUKI (JP)
GOTOH MASAHIRO (JP)
YOSHIDA TAKAYUKI (JP)
BABA TAKUYUKI (JP)
Application Number:
PCT/JP2016/066148
Publication Date:
December 08, 2016
Filing Date:
June 01, 2016
Export Citation:
Assignee:
DOWA ELECTRONICS MATERIALS CO (JP)
International Classes:
H01F1/26; B22F1/10; B22F1/102; B22F1/103
Foreign References:
| JP2009105170A | 2009-05-14 | |||
| JP2009155545A | 2009-07-16 | |||
| JP2008214665A | 2008-09-18 | |||
| JP2003318014A | 2003-11-07 |
Attorney, Agent or Firm:
ANIYA Setuo et al. (JP)
Ani store Setsuo (JP)
Ani store Setsuo (JP)
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