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    PERMANENT MAGNET AND METHOD FOR MANUFACTURING THE SAME
    2.
    发明申请
    PERMANENT MAGNET AND METHOD FOR MANUFACTURING THE SAME 审中-公开
    永久磁铁及其制造方法

    公开(公告)号：US20110012700A1

    公开(公告)日：2011-01-20

    申请号：US12933006

    申请日：2009-03-17

    申请人： Izumi Ozeki ,  Katsuya Kume ,  Junichi Nakayama ,  Yuuki Fukuda ,  Toshinobu Hoshino ,  Tomokazu Horio ,  Kenji Nakamura

    发明人： Izumi Ozeki ,  Katsuya Kume ,  Junichi Nakayama ,  Yuuki Fukuda ,  Toshinobu Hoshino ,  Tomokazu Horio ,  Kenji Nakamura

    IPC分类号： H01F7/02 ,  C04B35/50

    CPC分类号： H01F41/0266 ,  H01F1/0552 ,  H01F1/0557 ,  H01F1/0572 ,  H01F1/0577 ,  H01F41/0293 ,  H01F41/16 ,  H02K15/03

    摘要： The present invention relates to a permanent magnet obtained by sintering a green sheet which is produced by mixing a magnet raw material with a resin binder and molding the resulting mixture, and a method for producing the same. Since the present invention has such a constitution, the contraction due to sintering becomes uniform, whereby the deformations such as warpage and depressions do not occur after sintering. Further, it is unnecessary to perform the conventional correcting processing after sintering, which can simplify the production steps, because the pressure unevenness at the time of pressing disappears. Therefore, it becomes possible to mold the permanent magnet with a high degree of dimension accuracy. Furthermore, even when the permanent magnet is reduced in film thickness, the magnetic characteristics are not deteriorated by the processing-deteriorated layer on the surface.

    摘要翻译： 本发明涉及通过将通过将磁性原料与树脂粘合剂混合并将所得混合物成型而制造的生片烧结而得到的永磁体及其制造方法。 由于本发明具有这样的结构，因烧结而引起的收缩变得均匀，因此烧结后不会发生翘曲，凹陷等变形。 此外，由于压制时的压力不均匀性消失，不需要进行烧结后的常规校正处理，这可以简化制造步骤。 因此，可以以高度的尺寸精度来模制永久磁铁。 此外，即使当永磁体的膜厚减小时，表面上的处理劣化层的磁特性也不会劣化。

    Permanent magnet and process for producing permanent magnet
    5.
    发明授权
    Permanent magnet and process for producing permanent magnet 有权
    永久磁铁及其制造方法

    公开(公告)号：US08333848B2

    公开(公告)日：2012-12-18

    申请号：US12937831

    申请日：2009-04-14

    申请人： Izumi Ozeki ,  Katsuya Kume ,  Junichi Nakayama ,  Yuuki Fukuda ,  Toshinobu Hoshino ,  Tomokazu Horio

    发明人： Izumi Ozeki ,  Katsuya Kume ,  Junichi Nakayama ,  Yuuki Fukuda ,  Toshinobu Hoshino ,  Tomokazu Horio

    IPC分类号： H01F1/057

    CPC分类号： H01F1/0572 ,  B22F1/02 ,  B22F5/006 ,  B22F2998/10 ,  C22C38/002 ,  C22C38/005 ,  H01F1/0552 ,  H01F1/0558 ,  H01F1/0577 ,  H01F41/0266 ,  B22F9/04 ,  B22F1/0074 ,  B22F3/22 ,  B22F3/10

    摘要： The present invention relates to a permanent magnet manufactured by steps of: wet-pulverizing a high-melting metal element-containing organic compound or a precursor of a high-melting ceramic in a solvent together with a magnet raw material to pulverize the magnet raw material into fine particles having a grain size of 3 μm or less and to coat a surface of the pulverized magnet raw material with the high-melting metal element-containing organic compound or the precursor of the high-melting ceramic; adding a resin binder to the magnet raw material coated with the high-melting metal element-containing organic compound or the precursor of the high-melting ceramic; producing a slurry by kneading the magnet raw material and the resin binder; molding the slurry into a sheet form to prepare a green sheet; and sintering the green sheet.

    摘要翻译： 永磁体技术领域本发明涉及一种永久磁铁，其特征在于，将磁铁原料与磁铁原料一起湿式粉碎含有高熔点金属元素的有机化合物或高熔点陶瓷前体， 将粒径为3μm以下的微细粒子和含有高熔点金属元素的有机化合物或高熔点陶瓷的前体涂覆在粉碎的磁铁原料的表面上; 在涂覆有高熔点金属元素的有机化合物或高熔点陶瓷的前体的磁铁原料上加入树脂粘合剂; 通过捏合磁体原料和树脂粘合剂来生产浆料; 将浆料成型为片状以制备生片; 并烧结生片。

    PERMANENT MAGNET AND PROCESS FOR PRODUCING PERMANENT MAGNET
    6.
    发明申请
    PERMANENT MAGNET AND PROCESS FOR PRODUCING PERMANENT MAGNET 有权
    永久磁铁和生产永磁体的方法

    公开(公告)号：US20110037548A1

    公开(公告)日：2011-02-17

    申请号：US12937831

    申请日：2009-04-14

    申请人： Izumi Ozeki ,  Katsuya Kume ,  Junichi Nakayama ,  Yuuki Fukuda ,  Toshinobu Hoshino ,  Tomokazu Horio

    发明人： Izumi Ozeki ,  Katsuya Kume ,  Junichi Nakayama ,  Yuuki Fukuda ,  Toshinobu Hoshino ,  Tomokazu Horio

    IPC分类号： H01F7/02 ,  C04B35/64

    CPC分类号： H01F1/0572 ,  B22F1/02 ,  B22F5/006 ,  B22F2998/10 ,  C22C38/002 ,  C22C38/005 ,  H01F1/0552 ,  H01F1/0558 ,  H01F1/0577 ,  H01F41/0266 ,  B22F9/04 ,  B22F1/0074 ,  B22F3/22 ,  B22F3/10

    摘要： The present invention relates to a permanent magnet manufactured by steps of: wet-pulverizing a high-melting metal element-containing organic compound or a precursor of a high-melting ceramic in a solvent together with a magnet raw material to pulverize the magnet raw material into fine particles having a grain size of 3 μm or less and to coat a surface of the pulverized magnet raw material with the high-melting metal element-containing organic compound or the precursor of the high-melting ceramic; adding a resin binder to the magnet raw material coated with the high-melting metal element-containing organic compound or the precursor of the high-melting ceramic; producing a slurry by kneading the magnet raw material and the resin binder; molding the slurry into a sheet form to prepare a green sheet; and sintering the green sheet.

    摘要翻译： 永磁体技术领域本发明涉及一种永久磁铁，其特征在于，将磁铁原料与磁铁原料一起湿式粉碎含有高熔点金属元素的有机化合物或高熔点陶瓷前体， 将粒径为3μm以下的微细粒子和含有高熔点金属元素的有机化合物或高熔点陶瓷的前体涂覆在粉碎的磁铁原料的表面上; 在涂覆有高熔点金属元素的有机化合物或高熔点陶瓷的前体的磁铁原料上加入树脂粘合剂; 通过捏合磁体原料和树脂粘合剂来生产浆料; 将浆料成型为片状以制备生片; 并烧结生片。

    PERMANENT MAGNET AND METHOD FOR MANUFACTURING THE SAME
    8.
    发明申请
    PERMANENT MAGNET AND METHOD FOR MANUFACTURING THE SAME 有权
    永久磁铁及其制造方法

    公开(公告)号：US20110018664A1

    公开(公告)日：2011-01-27

    申请号：US12933180

    申请日：2009-03-17

    申请人： Izumi Ozeki ,  Katsuya Kume ,  Junichi Nakayama ,  Yuuki Fukuda ,  Toshinobu Hoshino ,  Tomokazu Horio

    发明人： Izumi Ozeki ,  Katsuya Kume ,  Junichi Nakayama ,  Yuuki Fukuda ,  Toshinobu Hoshino ,  Tomokazu Horio

    IPC分类号： H01F7/02 ,  B29C71/02

    CPC分类号： H01F1/0572 ,  H01F1/0552 ,  H01F1/0557 ,  H01F1/0577 ,  H01F41/0266 ,  H01F41/0293 ,  H01F41/16

    摘要： The present invention relates to a permanent magnet obtained by wet-mixing a Dy compound or a Tb compound with a magnet raw material to coat a surface of the magnet raw material with the Dy compound or the Tb compound, and sintering a green sheet obtained by mixing the resulting magnet raw material with a resin binder and molding the resulting mixture. Since the present invention has the above-mentioned constitution, it becomes possible to sufficiently improve coercive force by Dy or Tb while decreasing the amount of Dy or Tb used. Further, it can be prevented that Dy or Tb is solid-solutionized in magnet particles to decrease residual magnetization.

    摘要翻译： 本发明涉及通过用Dy化合物或Tb化合物将Dy化合物或Tb化合物与磁铁原料进行湿式混合以涂覆磁性原料的表面而获得的永磁体，并烧结由 将得到的磁铁原料与树脂粘合剂混合并模制所得混合物。 由于本发明具有上述结构，因此可以在减少Dy或Tb的使用量的同时充分提高Dy或Tb的矫顽力。 此外，可以防止Dy或Tb固溶在磁体颗粒中以降低剩余磁化强度。