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71. 发明授权

US06322637B1 Thin ribbon of rare earth-based permanent magnet alloy 有权
标题翻译：稀土永磁合金薄带
公开(公告)号：US06322637B1
公开(公告)日：2001-11-27
申请号：US09588536
申请日：2000-06-07
申请人： Koichi Hirota , Takahiro Hashimoto , Koji Sato , Kenji Yamamoto , Takehisa Minowa
发明人： Koichi Hirota , Takahiro Hashimoto , Koji Sato , Kenji Yamamoto , Takehisa Minowa
IPC分类号： H01F1057
CPC分类号： H01F1/0577 , H01F1/0571
摘要： Disclosed is a thin alloy ribbon prepared by the strip casting method as an intermediate for the preparation of a sintered rare earth-based permanent magnet or in particular, a neodymium/iron/boron-type permanent magnet. The thin alloy ribbon is characterized by a specific volume fraction of the four-phase coexisting region consisting of the &agr;-iron phase, R-rich phase, RxT4B4 phase and R2T14B phase each having an average grain diameter in a specified range and a specific volume fraction of the chill crystalline phase. When these requirements are satisfied, the sintered rare earth-based permanent magnet prepared from the thin alloy ribbons can be imparted with improved magnetic properties and high sintering density even without increasing the sintering temperature.
摘要翻译：公开了一种薄带合金带，其通过带状铸造法制备为制备稀土类烧结永磁体，特别是钕/铁/硼型永磁体的中间体。该薄合金带的特征在于由α-铁相，富R相，RxT4B4相和R2T14B相组成的四相共存区域的比体积分数，其平均晶粒直径在特定范围内，比容积冷冻结晶相的分数。当满足这些要求时，即使不增加烧结温度，也可以将由薄合金带制备的烧结稀土类永久磁铁赋予改善的磁性能和高烧结密度。

72. 发明授权

US06174609B1 Rare earth-based permanent magnet of high corrosion resistance 有权
标题翻译：稀土永磁体具有高耐腐蚀性
公开(公告)号：US06174609B1
公开(公告)日：2001-01-16
申请号：US09209481
申请日：1998-12-11
申请人： Kenichi Katsumi , Takehisa Minowa
发明人： Kenichi Katsumi , Takehisa Minowa
IPC分类号： B32B1508
CPC分类号： H01F41/026 , Y10S428/90 , Y10S428/928 , Y10T428/31714
摘要： A rare earth-iron-boron permanent magnet such as neodymium—iron—boron permanent magnet can be imparted with high corrosion resistance by forming a corrosion-resistant coating layer on the surface comprising an alkali silicate, e.g., sodium silicate or lithium silicate, and a thermosetting resin such as melamine, epoxy and acrylic resins in uniform admixture.
摘要翻译：通过在包含碱性硅酸盐（例如硅酸钠或硅酸锂）的表面上形成耐腐蚀涂层，可以赋予诸如钕铁硼永久磁铁的稀土 - 铁 - 硼永磁体和高耐腐蚀性，以及热固性树脂如三聚氰胺，环氧树脂和丙烯酸树脂均匀混合。

73. 发明授权

US5013411A Method for producing a corrosion resistant rare earth-containing magnet 失效
标题翻译：一种耐腐蚀稀土磁体的制造方法
公开(公告)号：US5013411A
公开(公告)日：1991-05-07
申请号：US359382
申请日：1989-05-31
申请人： Takehisa Minowa , Masao Yoshikawa
发明人： Takehisa Minowa , Masao Yoshikawa
IPC分类号： C22C38/00 , H01F1/057 , H01F1/08 , H01F41/02
CPC分类号： H01F41/026 , H01F1/0577
摘要： Corrosion-resistant rare earth magnets and a method for their manufacture, said magnets containing at least one rare earth element in an amount of 5 to 40 weight %, Fe in an amount of 50 to 90 weight %, Co in an amount of 0 to 15 wt %, B in an amount of 0.2 to 8 weight %, and at least one additive selected from Ni, Nb, Al, Ti, Zr, Cr, V, Mn, Mo, Si, Sn, Ga, Cu, and Zn in an amount of 0 to 8 weight %. The method comprises the steps of: (i) pretreating the surfaces of the magnet after sintering it; (ii) activating the surfaces thereof; and (iii) coating the surfaces thereof with at least one layer of Ni-containing film by electroplating. The activating may be carried out by treating the surfaces with a soap or a surface active agent. The activated surfaces may be subjected to ultrasonic vibrations in water to remove foreign substances before electroplating.

74. 发明授权

US09517547B2 Super hard alloy baseplate outer circumference cutting blade and manufacturing method thereof 有权
标题翻译：超硬合金基板外周切割刀片及其制造方法
公开(公告)号：US09517547B2
公开(公告)日：2016-12-13
申请号：US13990143
申请日：2011-11-28
申请人： Masaki Kasashima , Takehisa Minowa , Harukazu Maegawa , Yoshifumi Nagasaki
发明人： Masaki Kasashima , Takehisa Minowa , Harukazu Maegawa , Yoshifumi Nagasaki
IPC分类号： B24D5/12 , B24D5/02 , B24D3/06
CPC分类号： B24D5/12 , B24D3/06 , B24D5/02
摘要： The disclosed cemented carbide base outer blade cutting wheel comprises a base in the form of an annular thin disc of cemented carbide, and a blade section on the outer periphery of the base. The blade section contains: diamond and/or CBN abrasive grains pre-coated with a magnetic material; a metal or alloy bond formed by electroplating or electroless plating for bonding abrasive grains together and to the base; and a metal or alloy binder having a melting point of up to 350° C. infiltrated between abrasive grains and between abrasive grains and the base. The method for manufacturing said outer blade cutting wheel is also disclosed.
摘要翻译：所公开的硬质合金基体外刀片切割轮包括基底，其形式为硬质合金的圆环形薄片，以及基部外周上的叶片部分。刀片部分包含：预先涂覆有磁性材料的金刚石和/或CBN磨料颗粒; 通过电镀或无电镀形成的金属或合金结合剂将磨粒粘合在一起并与基底结合; 以及熔点高达350℃的金属或合金粘合剂，渗入磨粒之间和磨粒与基体之间。还公开了制造所述外刀片切割轮的方法。

75. 发明授权

US09044810B2 Rare earth magnet and its preparation 有权
标题翻译：稀土磁铁及其制备
公开(公告)号：US09044810B2
公开(公告)日：2015-06-02
申请号：US12825917
申请日：2010-06-29
申请人： Tadao Nomura , Hiroaki Nagata , Takehisa Minowa
发明人： Tadao Nomura , Hiroaki Nagata , Takehisa Minowa
IPC分类号： H01F1/057 , B22F7/06 , C22C1/10 , C22C28/00 , C22C38/00 , C22C45/00 , H01F41/02 , H01F1/153
CPC分类号： B22F7/062 , B22F2998/10 , B22F2999/00 , C22C1/1094 , C22C28/00 , C22C38/005 , C22C45/00 , H01F1/0577 , H01F1/15333 , H01F41/0293 , B22F9/023 , B22F2009/044 , B22F3/087 , B22F3/1007 , B22F2007/066 , B22F2009/048 , B22F2009/043 , B22F1/0074 , B22F2003/248 , B22F2201/20
摘要： A rare earth magnet is prepared by disposing a R1-T-B sintered body comprising a R12T14B compound as a major phase in contact with an R2-M alloy powder and effecting heat treatment for causing R2 element to diffuse into the sintered body. The alloy powder is obtained by quenching a melt containing R2 and M. R1 and R2 are rare earth elements, T is Fe and/or Co, M is selected from B, C, P, Al, Si, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, Ge, Zr, Nb, Mo, Ag, In, Sn, Sb, Hf, Ta, W, Pt, Au, Pb, and Bi.
摘要翻译：通过将包含R12T14B化合物的R1-T-B烧结体设置为与R2-M合金粉末接触的主相并进行热处理以使R2元素扩散到烧结体中来制备稀土磁体。通过淬火含有R 2和M的熔体获得合金粉末.R1和R2是稀土元素，T是Fe和/或Co，M选自B，C，P，Al，Si，Ti，V，Cr， Mn，Fe，Co，Ni，Cu，Zn，Ga，Ge，Zr，Nb，Mo，Ag，In，Sn，Sb，Hf，Ta，W，Pt，Au，Pb和Bi。

76. 发明授权

US09016269B2 Cemented carbide base outer blade cutting wheel and making method 有权
标题翻译：硬质合金外刀片切割轮及其制作方法
公开(公告)号：US09016269B2
公开(公告)日：2015-04-28
申请号：US13541263
申请日：2012-07-03
申请人： Masaki Kasashima , Takehisa Minowa , Harukazu Maegawa , Yoshifumi Nagasaki
发明人： Masaki Kasashima , Takehisa Minowa , Harukazu Maegawa , Yoshifumi Nagasaki
IPC分类号： B24D18/00 , B24D3/06 , B24D5/12
CPC分类号： B24D3/06 , B24D3/28 , B24D5/12 , B28D5/022
摘要： An outer blade cutting wheel comprising an annular thin disc base of cemented carbide and a blade section of metal or alloy-bonded abrasive grains on the outer periphery of the base is provided. The abrasive grains are diamond and/or cBN grains having an average grain size of 45-310 μm and a TI of at least 150. The blade section includes overlays having a thickness tolerance (T3max−T3min) of 0.001 mm to 0.1×T2 mm. The blade section has a roundness (ODmax/2−ODmin/2) of 0.001 mm to 0.01×ODmax mm.
摘要翻译：提供了一种外刀片切割轮，其包括硬质合金的环形薄盘基座和在基座的外周上的金属或合金结合的磨粒的刀片部分。磨粒是平均粒径为45-310μm，TI至少为150的金刚石和/或cBN颗粒。刀片部分包括厚度公差（T3max-T3min）为0.001mm至0.1×T2mm的覆盖层。叶片部分具有0.001mm至0.01×ODmaxmm的圆度（ODmax / 2-ODmin / 2）。

77. 发明授权

US08987965B2 Rotor and permanent magnet rotating machine 有权
标题翻译：转子和永磁旋转机
公开(公告)号：US08987965B2
公开(公告)日：2015-03-24
申请号：US13044084
申请日：2011-03-09
申请人： Hideki Kobayashi , Yuhito Doi , Takehisa Minowa
发明人： Hideki Kobayashi , Yuhito Doi , Takehisa Minowa
IPC分类号： H02K1/02 , H02K1/27 , H02K21/16
CPC分类号： H02K1/274 , H02K1/02 , H02K1/276 , H02K1/2766 , H02K21/16
摘要： A rotor adapted for a large permanent magnet rotating machine having high output and demagnetization resistance and the permanent magnet rotating machine are provided. The permanent rotating machine includes the rotor and a stator disposed with a clearance from an outer peripheral face of the rotor and formed by winding a winding wire through a stator core having two or more slots. The rotor includes one or more permanent magnets in each of two or more insertion holes, the insertion holes being formed in a circumferential direction in a rotor core. There is also provided the permanent magnet rotating machine including this rotor and a stator disposed with a clearance from an outer peripheral face of the rotor and formed by winding a winding wire through a stator core having two or more slots.
摘要翻译：提供一种适用于具有高输出和消磁阻力的大型永磁旋转机的转子和永磁旋转机。永久旋转机器包括转子和定子，该定子与转子的外周面间隔设置，并通过将绕组线缠绕在具有两个或更多个槽的定子芯上而形成。转子包括在两个或更多个插入孔中的每一个中的一个或多个永磁体，插入孔在转子芯中沿圆周方向形成。还提供了包括该转子和定子的永久磁铁旋转电机，该定子与转子的外周面间隔设置，并且通过将绕组线缠绕通过具有两个或更多个槽的定子芯而形成。

78. 发明授权

US08497612B2 Permanent magnet rotating machine 有权
标题翻译：永磁旋转机
公开(公告)号：US08497612B2
公开(公告)日：2013-07-30
申请号：US12676058
申请日：2008-09-10
申请人： Takehisa Minowa , Yuhito Doi , Hideki Kobayashi , Minori Miyata , Atsushi Miyata
发明人： Takehisa Minowa , Yuhito Doi , Koji Miyata , Hideki Kobayashi
IPC分类号： H02K21/10
CPC分类号： H02K21/24 , F03D9/25 , F05B2220/7068 , H02K7/1838 , H02K2213/12 , Y02E10/725
摘要： A permanent magnet rotating machine includes a rotating shaft and two end rotors. The rotating shift includes at least one inner rotor capable of rotating integrally with the rotating shaft, and being arranged in the space formed by the two end rotors so as to be separate from the two end rotors, and at least two stators isolated from the rotation of the rotating shaft, and being arranged in the spaces formed by the end rotors and the inner rotor. The end and inner rotor permanent magnets are arranged at equal intervals at the end and inner rotating disks; and the three or more stator coils are arranged circumferentially at equal intervals in the concentric circles of each of the fixed disks so as to face the two or more concentric circles of the end and inner permanent magnets on which the permanent magnets are arranged on the rotating disks.
摘要翻译：永磁旋转机械包括旋转轴和两个端部转子。旋转位移包括能够与旋转轴一体地旋转的至少一个内转子，并且布置在由两个端部转子形成的空间中以与两个端部转子分离，并且至少两个与旋转轴隔离的定子并且设置在由端部转子和内部转子形成的空间中。端转子和内转子永磁体在端部和内部旋转盘处以相等的间隔布置; 并且所述三个以上的定子线圈在所述固定盘的同心圆中以等间隔配置，以与所述永久磁铁配置在所述永久磁铁上的所述端部和内部永久磁铁的两个以上的同心圆磁盘。

79. 发明授权

US08424189B2 Rotary table for permanent magnet rotating machine and method for manufacturing permanent magnet rotating machine 有权
标题翻译：永磁旋转机旋转台及永磁旋转机的制造方法
公开(公告)号：US08424189B2
公开(公告)日：2013-04-23
申请号：US13481435
申请日：2012-05-25
申请人： Yuhito Doi , Hideki Kobayashi , Takehisa Minowa , Minori Miyata , Atsushi Miyata
发明人： Yuhito Doi , Hideki Kobayashi , Takehisa Minowa , Koji Miyata
IPC分类号： H02K15/03 , H02K1/27 , H02K16/02
CPC分类号： H02K21/24 , H02K1/2793 , H02K15/03 , Y10T29/49009 , Y10T29/49012
摘要： A method for assembling rotors which is applicable to a large axial gap type permanent magnet rotating machine. A permanent magnet rotating machine comprising: a rotating shaft; at least two rotors comprising a table-like structure and permanent magnets attached thereto, the table-like structures being connected to the rotating shaft and being disposed in an axial direction of the rotating shaft; and a stator comprising a table-like structure and stator coils around which a copper wire is wound, said stator being disposed in a gap formed by the rotors so that the stator being separated from the rotating shaft, is manufactured by the following steps of assembling the two rotors such that a predetermined gap is formed therebetween; and mounting the magnets on the table-like structures by inserting the magnet from the radially outer side of the table-like structures towards the center of the rotation.
摘要翻译：一种用于组装转子的方法，其适用于大型轴向间隙型永磁旋转机。一种永磁旋转机，包括：旋转轴; 至少两个转子，其包括台式结构和附接到其上的永磁体，所述台状结构连接到所述旋转轴并沿所述旋转轴的轴向设置; 以及定子，其包括台状结构和缠绕有铜线的定子线圈，所述定子设置在由所述转子形成的间隙中，使得所述定子与所述旋转轴分离，通过以下步骤制造：组装两个转子之间形成预定间隙; 并且通过将磁体从台式结构的径向外侧插入旋转中心，将磁体安装在台状结构上。

80. 发明授权

US08420010B2 Method for preparing rare earth permanent magnet material 有权
标题翻译：稀土永磁材料的制备方法
公开(公告)号：US08420010B2
公开(公告)日：2013-04-16
申请号：US11916498
申请日：2007-03-28
申请人： Hajime Nakamura , Takehisa Minowa , Koichi Hirota
发明人： Hajime Nakamura , Takehisa Minowa , Koichi Hirota
IPC分类号： B22F7/00
CPC分类号： C23C10/30 , B22F3/24 , B22F2003/241 , B22F2003/242 , B22F2003/247 , B22F2003/248 , C21D6/00 , C22C38/005 , C22C2202/02 , C23C10/28 , C23C10/52 , C23C24/08 , H01F1/0577 , H01F41/0293
摘要： A method for preparing a rare earth permanent magnet material is characterized by comprising the steps of disposing a powder mixture on a surface of a sintered magnet body of R1—Fe—B composition wherein R1 is at least one element selected from rare earth elements inclusive of Sc and Y, the powder mixture comprising a powder containing at least 0.5% by weight of M which is at least one element selected from Al, Cu, and Zn and having an average particle size equal to or less than 300 μm and a powder containing at least 30% by weight of a fluoride of R2 which is at least one element selected from rare earth elements inclusive of Sc and Y and having an average particle size equal to or less than 100 μm, and heat treating the magnet body having the powder disposed on its surface at a temperature equal to or below the sintering temperature of the magnet body in vacuum or in an inert gas, for causing at least one of M and R2 in the powder mixture to be absorbed in the magnet body. The invention provides an R—Fe—B sintered magnet with high performance and a minimized amount of Tb or Dy used.
摘要翻译：一种制备稀土永磁材料的方法的特征在于包括以下步骤：在R1-Fe-B组合物的烧结磁体的表面上设置粉末混合物，其中R 1是选自稀土元素中的至少一种元素，包括 Sc和Y，所述粉末混合物包含含有至少0.5重量％M的至少一种选自Al，Cu和Zn的元素并且具有等于或小于300μm的平均粒度的粉末和包含至少30重量％的R 2的氟化物，其为选自包括Sc和Y的稀土元素中的至少一种元素，并且具有等于或小于100μm的平均粒度，并且对具有粉末的磁体进行热处理在真空中或在惰性气体中的等于或低于磁体的烧结温度的温度下，在粉末混合物中使M和R2中的至少一个吸收在磁体中。本发明提供一种具有高性能和最小量的Tb或Dy的R-Fe-B烧结磁体。

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