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Patent Searching and Data


Title:
COMPOSITE MAGNETIC MATERIAL AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2017/138158
Kind Code:
A1
Abstract:
Provided is a composite magnetic material in which low electrical conductivity and high magnetic permeability are achieved, and in which a frequency band in which decoupling is caused encompasses higher frequencies. The composite magnetic material comprises a flat soft magnetic metal powder; insulating particles which are smaller than an average thickness of the soft magnetic metal powder and which are disposed on a surface of the soft magnetic metal powder; and an organic binder material which retains the soft magnetic metal powder and the insulating particles in a dispersed manner. In a cross section in a thickness direction of the soft magnetic metal powder, there is at least one insulating particle per a length of 0.2 μm of the soft magnetic metal powder surface.

Inventors:
IGARASHI, Toshiyuki (7-1 Kohriyama 6-chome, Taihaku-ku, Sendai-sh, Miyagi 10, 〒9828510, JP)
Application Number:
JP2016/063345
Publication Date:
August 17, 2017
Filing Date:
April 28, 2016
Export Citation:
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Assignee:
TOKIN CORPORATION (7-1 Kohriyama 6-chome, Taihaku-ku Sendai-sh, Miyagi 10, 〒9828510, JP)
International Classes:
H01F1/24; B22F1/00; H05K9/00
Foreign References:
JPH1092621A1998-04-10
JP2006049729A2006-02-16
JP2010080508A2010-04-08
JP2009158652A2009-07-16
Attorney, Agent or Firm:
IKEDA, Noriyasu et al. (NANBA Bldg, 19-4 Nishishinbashi 1-chome, Minato-k, Tokyo 03, 〒1050003, JP)
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