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    CYLINDRICAL BONDED MAGNET, METHOD OF PRODUCING CYLINDRICAL BONDED MAGNET, AND MOLD FOR FORMING CYLINDRICAL BONDED MAGNET
    1.
    发明申请
    CYLINDRICAL BONDED MAGNET, METHOD OF PRODUCING CYLINDRICAL BONDED MAGNET, AND MOLD FOR FORMING CYLINDRICAL BONDED MAGNET 有权

    公开(公告)号：US20250010369A1

    公开(公告)日：2025-01-09

    申请号：US18764657

    申请日：2024-07-05

    Applicant: NICHIA CORPORATION

    Inventor： Rie YOSHIDA ,  Daichi ITAMI ,  Muneo YAMAMOTO

    IPC: B22F3/22 ,  H01F1/057 ,  H01F7/02 ,  H01F41/02

    Abstract: A method of producing a cylindrical bonded magnet includes providing a mold including an inner mold portion, an outer mold portion, a first orientation magnet, and a second orientation magnet, and performing molding to obtain a cylindrical bonded magnet by filling a region between the outer surface of the inner mold portion and the inner surface of the outer mold portion with a resin composition. When viewed in a cross-section, a first distance is shorter than a second distance, the first distance is a straight line distance along a magnetic field application direction and is tangent to a circle defined by the inner surface of the outer mold portion, and the second distance is a straight line distance along the magnetic field application direction and passes through a center of a circle defined by the outer surface of the inner mold portion.

    CYLINDRICAL MULTIPOLE MAGNET AND COMPOSITE MATERIAL
    2.
    发明公开
    CYLINDRICAL MULTIPOLE MAGNET AND COMPOSITE MATERIAL 审中-公开

    公开(公告)号：US20240047112A1

    公开(公告)日：2024-02-08

    申请号：US18366601

    申请日：2023-08-07

    Applicant: NICHIA CORPORATION

    Inventor： Rie YOSHIDA ,  Daichi ITAMI ,  Masahiro ABE ,  Kuniyasu KAWAMURA ,  Takayuki YANO ,  Muneo YAMAMOTO

    IPC: H01F7/02 ,  H01F1/059

    CPC classification number: H01F7/021 ,  H01F1/059

    Abstract: A cylindrical multipole magnet having an inner peripheral surface and an outer peripheral surface and having N- and S-poles alternately and continuously in a circumferential direction. A surface magnetic flux density of the outer peripheral surface is at least 0.2 times a surface magnetic flux density of the inner peripheral surface. The cylindrical multipole magnet contains an anisotropic rare earth magnetic powder and a resin, with a filling ratio of the anisotropic rare earth magnetic powder being at least 50 vol % but not higher than 65 vol % with respect to a total volume of the anisotropic rare earth magnetic powder and the resin.

    BONDED MAGNET, BONDED MAGNET COMPONENT, AND BONDED MAGNET PRODUCTION METHOD
    3.
    发明申请
    BONDED MAGNET, BONDED MAGNET COMPONENT, AND BONDED MAGNET PRODUCTION METHOD 审中-公开

    公开(公告)号：US20170125164A1

    公开(公告)日：2017-05-04

    申请号：US15404501

    申请日：2017-01-12

    Applicant: NICHIA CORPORATION

    Inventor： Rie YOSHIDA ,  Michiya KUME ,  Kohei IHARA ,  Taku ICHIMORI

    IPC: H01F41/02

    CPC classification number: H01F41/0266 ,  H01F7/021 ,  H01F41/0273

    Abstract: A bonded magnet is provided which includes first and second components. The first and second components have first and second non-action surfaces, and first and second action surfaces that intersect the first and second non-action surfaces, respectively. First and second flux groups curve inside the first and second components from the first and second non-action surfaces to the first and second action surfaces, respectively. The areas of the first and second non-action surfaces are greater than the first and second action surfaces, respectively. The flux densities on the first and second action surfaces are higher than the first and second non-action surfaces, respectively. The pole on the first non-action surface is opposite to the second non-action surface. The first and second non-action surfaces are coupled to each other. The first flux groups continuously extend from one to another.

    BONDED MAGNET, BONDED MAGNET COMPONENT, AND BONDED MAGNET PRODUCTION METHOD
    5.
    发明申请
    BONDED MAGNET, BONDED MAGNET COMPONENT, AND BONDED MAGNET PRODUCTION METHOD 有权
    粘结磁体，粘结磁体组件和粘结磁体生产方法

    公开(公告)号：US20160093426A1

    公开(公告)日：2016-03-31

    申请号：US14867714

    申请日：2015-09-28

    Applicant: NICHIA CORPORATION

    Inventor： Rie YOSHIDA ,  Michiya KUME ,  Kohei IHARA ,  Taku ICHIMORI

    IPC: H01F1/113 ,  H01F41/02 ,  H01F7/02

    CPC classification number: H01F41/0266 ,  H01F7/021 ,  H01F41/0273

    Abstract: A bonded magnet is provided which includes first and second components. The first and second components have first and second non-action surfaces, and first and second action surfaces that intersect the first and second non-action surfaces, respectively. First and second flux groups curve inside the first and second components from the first and second non-action surfaces to the first and second action surfaces, respectively. The areas of the first and second non-action surfaces are greater than the first and second action surfaces, respectively. The flux densities on the first and second action surfaces are higher than the first and second non-action surfaces, respectively. The pole on the first non-action surface is opposite to the second non-action surface. The first and second non-action surfaces are coupled to each other. The first flux groups continuously extend from one to another.

    Abstract translation: 提供了包括第一和第二组分的粘结磁体。 第一和第二部件具有分别与第一和第二非作用表面相交的第一和第二非作用表面以及第一和第二作用表面。 第一和第二通量组分别从第一和第二非作用表面向第一和第二作用表面弯曲第一和第二组分内部。 第一和第二非作用表面的面积分别大于第一和第二作用表面。 第一和第二作用表面上的通量密度分别高于第一和第二非作用表面。 第一非作用表面上的极与第二非作用表面相反。 第一和第二非作用表面彼此连接。 第一个焊剂组从一个连续延伸到另一个。

    COMPOSITE COMPONENT AND METHOD FOR PRODUCING SAME
    6.
    发明公开
    COMPOSITE COMPONENT AND METHOD FOR PRODUCING SAME 审中-公开

    公开(公告)号：US20240013961A1

    公开(公告)日：2024-01-11

    申请号：US18247391

    申请日：2021-09-28

    Applicant: NICHIA CORPORATION

    Inventor： Masahiro ABE ,  Rie YOSHIDA ,  Shuichi TADA ,  Michiya KUME ,  Kohei IHARA ,  Naotake FUJITA

    IPC: H01F7/02 ,  H01F1/053 ,  H01F41/02

    CPC classification number: H01F7/021 ,  H01F1/0536 ,  H01F41/0253

    Abstract: The present invention relates to a method of producing a composite component, the method including: preparing a second composite by fitting a first molded body onto a first composite including a rare earth magnet and a component contacting the rare earth magnet, such that the first molded body covers at least the entire surface of the first composite corresponding to the rare earth magnet; and forming a second molded body by inserting the second composite into a mold and injection-molding a thermoplastic resin such that the thermoplastic resin covers at least the entire surface of the first composite not covered by the first molded body and also contacts the first molded body.

    BONDED MAGNET, BONDED MAGNET COMPONENT, AND BONDED MAGNET PRODUCTION METHOD
    9.
    发明申请
    BONDED MAGNET, BONDED MAGNET COMPONENT, AND BONDED MAGNET PRODUCTION METHOD 有权

    公开(公告)号：US20210104361A1

    公开(公告)日：2021-04-08

    申请号：US17073914

    申请日：2020-10-19

    Applicant: NICHIA CORPORATION

    Inventor： Rie YOSHIDA ,  Michiya KUME ,  Kohei IHARA ,  Taku ICHIMORI

    IPC: H01F41/02 ,  H01F7/02

    Abstract: A bonded magnet is provided which includes first and second components. The first and second components have first and second non-action surfaces, and first and second action surfaces that intersect the first and second non-action surfaces, respectively. First and second flux groups curve inside the first and second components from the first and second non-action surfaces to the first and second action surfaces, respectively. The areas of the first and second non-action surfaces are greater than the first and second action surfaces, respectively. The flux densities on the first and second action surfaces are higher than the first and second non-action surfaces, respectively. The pole on the first non-action surface is opposite to the second non-action surface. The first and second non-action surfaces are coupled to each other. The first flux groups continuously extend from one to another.

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