Invention Application
US20120038532A1 CORE-SHELL MAGNETIC MATERIAL, METHOD FOR PRODUCING CORE-SHELL MAGNETIC MATERIAL, DEVICE, AND ANTENNA DEVICE 有权
芯壳磁性材料,生产芯壳磁性材料的方法,器件和天线装置

CORE-SHELL MAGNETIC MATERIAL, METHOD FOR PRODUCING CORE-SHELL MAGNETIC MATERIAL, DEVICE, AND ANTENNA DEVICE
Abstract:
A core-shell magnetic material having an excellent characteristic in a high-frequency band, in particular a GHz-band and a high environment resistance is provided. The core-shell magnetic material includes: a magnetic member in which plural core-shell magnetic particles are bound by a binder made of a first resin; and a coating layer that is made of a second resin different from the first resin, a surface of the magnetic member being covered with the coating layer. The core-shell magnetic material is characterized in that the core-shell magnetic particle includes a magnetic metallic particle and a covering layer that covers at least part of a surface of the magnetic metallic particle, the magnetic metallic particle contains at least one magnetic metal selected from a group consisting of Fe, Co, and Ni, and the covering layer is made of an oxide, a nitride, or a carbide that contains at least one magnetic metal.
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