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    Method for producing magnetic material
    3.
    发明授权
    Method for producing magnetic material 有权

    公开(公告)号：US10513760B2

    公开(公告)日：2019-12-24

    申请号：US14842205

    申请日：2015-09-01

    申请人： Kabushiki Kaisha Toshiba

    发明人： Tomohiro Suetsuna ,  Koichi Harada ,  Tomoko Eguchi ,  Toshihide Takahashi ,  Seiichi Suenaga

    IPC分类号： C22C38/08 ,  B22F9/04 ,  C22C1/00 ,  C21D8/12 ,  C22C38/02 ,  C22C38/06

    摘要： Provided is a method for producing a magnetic material. The method includes preparing magnetic metal particles containing at least one magnetic metal selected from a first group consisting of Fe, Co and Ni, and at least one non-magnetic metal selected from a second group consisting of Mg, Al, Si, Ca, Zr, Ti, Hf, Zn, Mn, Ba, Sr, Cr, Mo, Ag, Ga, Sc, V, Y, Nb, Pb, Cu, In, Sn and rare earth elements, pulverizing and reaggregating the magnetic metal particles, and thereby forming composite particles containing a magnetic metal phase and an interstitial phase, and heat-treating the composite particles at a temperature of from 50° C. to 800° C. The particle size distribution of the magnetic metal particles in the preparing magnetic metal particles has two or more peaks.

    MAGNETIC MATERIAL AND DEVICE
    5.
    发明申请
    MAGNETIC MATERIAL AND DEVICE 审中-公开
    磁性材料和器件

    公开(公告)号：US20140374644A1

    公开(公告)日：2014-12-25

    申请号：US14311672

    申请日：2014-06-23

    申请人： Kabushiki Kaisha Toshiba

    发明人： Tomoko EGUCHI ,  Seiichi Suenaga ,  Koichi Harada ,  Tomohiro Suetsuna ,  Toshihide Takahashi

    IPC分类号： H01F1/01

    CPC分类号： H01F1/37 ,  H01F1/09 ,  H01F1/28 ,  H01F1/33

    摘要： A magnetic material of an embodiment includes a plurality of magnetic metal particles and a matrix phase. Each of the plurality of magnetic metal particles includes a magnetic metal and a first compound included in the magnetic metal. The magnetic metal includes at least one element selected from Fe, Co, and Ni. The first compound is an oxide, a nitride, or a carbide including at least one element selected from Fe, Al, Si, B, Mg, Ca, Zr, Ti, Hf, Zn, Mn, Nb, Ta, Mo, Cr, Cu, W, a rare-earth element, Ba, and Sr. The matrix phase fills a space between the plurality of magnetic metal particles and has higher electric resistance than the plurality of magnetic metal particles.

    摘要翻译： 实施例的磁性材料包括多个磁性金属颗粒和基体相。 多个磁性金属颗粒中的每一个包括磁性金属和磁性金属中包含的第一化合物。 磁性金属包括选自Fe，Co和Ni中的至少一种元素。 第一化合物是选自Fe，Al，Si，B，Mg，Ca，Zr，Ti，Hf，Zn，Mn，Nb，Ta，Mo，Cr中的至少一种元素的氧化物，氮化物或碳化物， Cu，W，稀土元素Ba和Sr。基体相填充多个磁性金属颗粒之间的空间，并且具有比多个磁性金属颗粒更高的电阻。

    Radio wave absorber
    9.
    发明授权
    Radio wave absorber 有权
    无线电波吸收器

    公开(公告)号：US09318809B2

    公开(公告)日：2016-04-19

    申请号：US14480759

    申请日：2014-09-09

    申请人： Kabushiki Kaisha Toshiba

    发明人： Toshihide Takahashi ,  Tomohiro Suetsuna ,  Koichi Harada ,  Tomoko Eguchi ,  Seiichi Suenaga

    IPC分类号： H01Q17/00

    CPC分类号： H01Q17/004 ,  H01Q17/00 ,  H01Q17/008

    摘要： A radio wave absorber according to an embodiment includes a plurality of metal particles including at least one kind of magnetic metal element selected from a first group of Fe, Co, and Ni. Each of the plurality of metal particles has a linear expansion coefficient of 1×10−6/K or more and 10×10−6/K or less. The radio wave absorber also includes a binding layer binding the metal particles and having higher resistance than the metal particle, wherein a volume filling ratio of the metal particles in the radio wave absorber is 10% or more and 50% or less.

    摘要翻译： 根据实施例的无线电波吸收体包括多个金属颗粒，其包括选自第一组Fe，Co和Ni中的至少一种磁性金属元素。 多个金属粒子的线膨胀系数为1×10 -6 / K以上且10×10 -6 / K以下。 无线电波吸收体还包括结合金属颗粒的结合层，并且具有比金属颗粒更高的电阻，其中无线电波吸收体中的金属颗粒的体积填充率为10％以上且50％以下。