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    Method for preparation of sintered permanent magnet
    1.
    发明授权
    Method for preparation of sintered permanent magnet 有权
    烧结永磁体的制备方法

    公开(公告)号：US06368551B1

    公开(公告)日：2002-04-09

    申请号：US09641136

    申请日：2000-08-16

    申请人： Shigenobu Sekine ,  Yuko Kawasaki ,  Yoshiki Kuwabara ,  Hiroji Sato ,  Minoru Narita ,  Kazushi Suzuki ,  Koichi Tono ,  Keiji Okada ,  Kenji Sakaguchi ,  Mitsuhisa Hirata

    发明人： Shigenobu Sekine ,  Yuko Kawasaki ,  Yoshiki Kuwabara ,  Hiroji Sato ,  Minoru Narita ,  Kazushi Suzuki ,  Koichi Tono ,  Keiji Okada ,  Kenji Sakaguchi ,  Mitsuhisa Hirata

    IPC分类号： B22F312

    CPC分类号： H01F1/0577

    摘要： The method for preparation of sintered permanent magnets according to the present invention comprises the steps of: mixing fully fine powder of a crystalline mother alloy for permanent magnet containing a rare-earth element, Fe and B as the essential components with fine powder of zinc oxide, compaction molding the resulted mixture in the presence of a magnetic field, sintering the compacted mixture in vacuum to cause generation of oxygen and metallic zinc by thermal decomposition of the zinc oxide; segregation of a part of metallic component in the mother alloy at the boundary and inside of the mother alloy crystal; formation of amorphous metallic oxide by forced oxidation of the segregated metal with the generated oxygen; crystallization of the amorphous metallic oxide; formation of an epitaxial junction between the crystallized metallic oxide and the mother alloy crystal; and evaporation of the metallic zinc into the vacuum, and quenching the sintered compact.

    摘要翻译： 根据本发明的烧结永磁体的制备方法包括以下步骤：将含有稀土元素，Fe和B的永磁体的结晶母合金的完全细粉末作为必要成分与氧化锌的细粉末混合 在磁场存在下压制成型所得到的混合物，在真空中烧结压实的混合物，以通过氧化锌的热分解产生氧和金属锌; 在母合金晶体的边界和内侧，母合金中的金属成分的一部分偏析; 通过用生成的氧强制氧化分离的金属形成非晶金属氧化物; 无定形金属氧化物的结晶; 在结晶的金属氧化物和母体合金晶体之间形成外延结; 并将金属锌蒸发到真空中，并淬火烧结体。

    Composition for permanent magnet
    2.
    发明授权
    Composition for permanent magnet 失效
    永久磁铁组成

    公开(公告)号：US5942053A

    公开(公告)日：1999-08-24

    申请号：US089222

    申请日：1998-06-03

    申请人： Shigenobu Sekine ,  Hiroji Sato ,  Minoru Narita

    发明人： Shigenobu Sekine ,  Hiroji Sato ,  Minoru Narita

    IPC分类号： C22C38/00 ,  H01F1/053 ,  H01F1/057

    CPC分类号： H01F1/0577 ,  H01F1/057

    摘要： The object of the invention is to provide a composition for permanent magnet with excellent magnetic properties exhibiting well the latent ability of the RFeB system tetragonal compounds. The composition for permanent magnet according to the present invention is a complex of (1) a crystalline RFeB or RFeCoB system compound having a tetragonal crystal structure with lattice constants of a.sub.o about 8.8 .ANG. and c.sub.o about 12 .ANG., in which R is at least one of rare earth elements, and (2) a crystalline neodymium oxide having a cubic crystal structure, in which both crystal grains are epitaxially connected and the RFeB or RFeCoB crystal grains are oriented to the c.sub.o direction. The lattice constant a.sub.o of the cubic Nd.sub.2 O.sub.3 is about 4.4 .ANG. which is the half length of the lattice constant a.sub.o about 8.8 .ANG. for the RFeB or RFeCoB tetragonal crystal, and the epitaxial connection is achieved, and the RFeB or RFeCoB crystal grains are oriented to the c.sub.o direction.

    摘要翻译： 本发明的目的是提供一种具有优异磁性能的永磁体组合物，其表现出良好的RFeB系四正方晶化合物的潜能。 根据本发明的永磁体组合物是（1）具有四方晶系结构的结晶RFeB或RFeCoB体系化合物的复合物，其晶格常数大约为8.8安培和约12安培姆，其中R为至少一个 的稀土元素，和（2）具有立方晶体结构的结晶钕氧化物，其中两个晶粒外延连接，并且RFeB或RFeCoB晶粒取向于共方向。 立方Nd2O3的晶格常数ao为约4.4 ANGSTROM，其为RFeB或RFeCoB四方晶体的晶格常数ao约为8.8Ag的一半长度，并且实现了外延连接，并且RFeB或RFeCoB晶粒取向为 公司方向。

    Method of preparing raw material powder for permanent magnets superior in moldability
    3.
    发明授权
    Method of preparing raw material powder for permanent magnets superior in moldability 失效
    制备成型性优异的永磁体用原料粉末的方法

    公开(公告)号：US06103021A

    公开(公告)日：2000-08-15

    申请号：US112288

    申请日：1998-07-09

    申请人： Shigenobu Sekine ,  Hiroji Sato

    发明人： Shigenobu Sekine ,  Hiroji Sato

    IPC分类号： B22F9/22 ,  B22F1/00 ,  H01F1/057 ,  H01F1/059 ,  H01F1/06 ,  B22F9/00

    CPC分类号： H01F1/059 ,  B22F1/0007 ,  B22F1/0085 ,  H01F1/0571 ,  H01F1/0578 ,  B22F2999/00

    摘要： The present invention is directed to provide a method of preparing a raw material powder for permanent magnets superior in moldability, especially in moldability and productivity of bonded magnets. The method comprises subjecting an acicular iron powder having an aspect ratio of not smaller than 5:1 to heating at 800-900.degree. C. in fluidized state with a gas stream containing no oxygen until the acicular iron powder is transformed into a columnar shape iron powder having an aspect ratio of not larger than 3:1, a die-like shape iron powder or a spherical shape iron powder. The acicular iron powder may contain or may be attached by such a component effective for improving magnetic properties as a rare earth element metal, a rare earth element metal oxide, boron, cobalt and nickel.

    摘要翻译： 本发明的目的在于提供一种制备永久磁铁用原料粉末的方法，该成型性优异，特别是成形性和粘结磁铁的生产率。 该方法包括：使具有不小于5:1的纵横比的针状铁粉以不含氧的气流在流化状态下在800-900℃下加热，直到针状铁粉转变为柱状铁 长径比不大于3:1的粉末，模具状铁粉或球形铁粉。 针状铁粉可以含有或者可以通过这样一种有助于提高作为稀土元素金属，稀土元素金属氧化物，硼，钴和镍的磁性能的组分附着。

    Method of preparing raw material powder for permanent magnets superior in moldability
    4.
    发明授权
    Method of preparing raw material powder for permanent magnets superior in moldability 失效
    制备成型性优异的永磁体用原料粉末的方法

    公开(公告)号：US5865873A

    公开(公告)日：1999-02-02

    申请号：US779218

    申请日：1997-01-06

    申请人： Shigenobu Sekine ,  Hiroji Sato

    发明人： Shigenobu Sekine ,  Hiroji Sato

    IPC分类号： B22F9/22 ,  B22F1/00 ,  H01F1/057 ,  H01F1/059 ,  H01F1/06

    CPC分类号： H01F1/059 ,  B22F1/0007 ,  B22F1/0085 ,  H01F1/0571 ,  H01F1/0578 ,  B22F2999/00

    摘要： The present invention is directed to provide a method of preparing a raw material powder for permanent magnets superior in moldability, especially in moldability and productivity of bonded magnets. The method comprises subjecting an acicular iron powder having an aspect ratio of not smaller than 5:1 to heating at 800.degree.-900.degree. C. in fluidized state with a gas stream containing no oxygen until the acicular iron powder is transformed into a columnar shape iron powder having an aspect ratio of not larger than 3:1, a die-like shape iron powder or a spherical shape iron powder. The acicular iron powder may contain or may be attached by such a component effective for improving magnetic properties as a rare earth element metal, a rare earth element metal oxide, boron, cobalt and nickel.

    摘要翻译： 本发明的目的在于提供一种制备永久磁铁用原料粉末的方法，该成型性优异，特别是成形性和粘结磁铁的生产率。 该方法包括使长径比不小于5:1的针状铁粉在流化状态下在不含氧的气流中加热至800-900℃，直到针状铁粉转变为柱状 长径比不大于3:1的铁粉，模具状铁粉或球形铁粉。 针状铁粉可以含有或者可以通过这样一种有助于提高作为稀土元素金属，稀土元素金属氧化物，硼，钴和镍的磁性能的组分附着。

    Raw material powder for modified permanent magnets and production method of the same
    5.
    发明授权
    Raw material powder for modified permanent magnets and production method of the same 失效
    改性永磁体用原料粉及其制作方法相同

    公开(公告)号：US6051077A

    公开(公告)日：2000-04-18

    申请号：US893991

    申请日：1997-07-16

    申请人： Shigenobu Sekine ,  Hiroji Sato

    发明人： Shigenobu Sekine ,  Hiroji Sato

    IPC分类号： B22F1/00 ,  H01F1/057

    CPC分类号： B82Y25/00 ,  B22F1/0096 ,  H01F1/0577 ,  H01F1/0579

    摘要： The present invention is directed to provide a raw material powder for modified permanent magnets capable of enhancing magnetic properties of iron.rare earth element metal.boron permanent magnets and reducing the production cost, and further to provide its production method. The raw material powder is a pulverized powder of sintered mass obtained by sintering in vacuum or in a non-oxidative gas a mixture of an acicular iron powder and an alloy powder containing iron, a rare earth element metal and boron.

    摘要翻译： 本发明旨在提供一种能够提高铁土金属硼永磁体的磁性能的改性永磁体用原料粉末，降低生产成本，进一步提供其制造方法。 原料粉末是通过在真空中或非氧化性气体中烧结针状铁粉和含铁，稀土元素金属和硼的合金粉末的混合物而获得的烧结体粉碎粉末。

    ELECTRONIC DEVICE AND MANUFACTURING METHOD THEREFOR
    10.
    发明申请
    ELECTRONIC DEVICE AND MANUFACTURING METHOD THEREFOR 有权
    电子设备及其制造方法

    公开(公告)号：US20110284912A1

    公开(公告)日：2011-11-24

    申请号：US13106933

    申请日：2011-05-13

    申请人： Shigenobu Sekine ,  Yurina Sekine ,  Yoshiharu Kuwana

    发明人： Shigenobu Sekine ,  Yurina Sekine ,  Yoshiharu Kuwana

    IPC分类号： H01L33/62 ,  H01L21/28

    CPC分类号： H01L23/481 ,  H01L21/76898 ,  H01L2224/13 ,  H01L2224/16146 ,  H01L2224/81 ,  H01L2924/09701 ,  H01L2924/13091 ,  H01L2924/1461 ,  H01L2924/00

    摘要： An electronic device includes a semiconductor substrate, an insulating material-filled layer and a vertical conductor. The semiconductor substrate has a vertical hole extending in a thickness direction thereof. The insulating material-filled layer is a ring-shaped layer filled in the vertical hole for covering an inner periphery thereof and includes an organic insulating material or an inorganic insulating material mainly of a glass and a nanocomposite ceramic. The nanocomposite ceramic has a specific resistance of greater than 1014 Ω·cm at room temperature and a relative permittivity of 4 to 9. The vertical conductor is a solidified metal body filled in an area surrounded by the insulating material-filled layer.

    摘要翻译： 电子设备包括半导体衬底，绝缘材料填充层和垂直导体。 半导体衬底具有沿其厚度方向延伸的垂直孔。 绝缘材料填充层是填充在用于覆盖其内周的垂直孔中的环状层，并且包括主要由玻璃和纳米复合陶瓷组成的有机绝缘材料或无机绝缘材料。 纳米复合陶瓷在室温下的电阻率大于1014＆OHgr·cm，相对介电常数为4〜9。垂直导体是填充在被绝缘材料填充层包围的区域中的凝固金属体。