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1. 发明授权

US07559996B2 Rare earth permanent magnet, making method, and permanent magnet rotary machine 有权
标题翻译：稀土永磁体，制作方法和永磁旋转机
公开(公告)号：US07559996B2
公开(公告)日：2009-07-14
申请号：US11489595
申请日：2006-07-20
申请人： Koji Miyata , Koichi Hirota , Hajime Nakamura , Takehisa Minowa
发明人： Koji Miyata , Koichi Hirota , Hajime Nakamura , Takehisa Minowa
IPC分类号： H01F1/057 , H01F1/08
CPC分类号： H02K1/278 , B22F3/24 , B22F2003/242 , B22F2003/245 , B22F2003/248 , B22F2998/00 , B22F2998/10 , C22C38/005 , H01F1/0577 , H01F41/0293 , H02K15/03 , C22C33/0278 , B22F3/10 , B22F2201/10 , B22F2201/20
摘要： A rare earth permanent magnet is prepared from a sintered magnet body of a R1—Fe—B composition wherein R1 is a rare earth element inclusive of Y and Sc, by forming a plurality of slits in a surface of the magnet body, disposing a powder on the magnet body surface, the powder comprising an oxide of R2, a fluoride of R3, or an oxyfluoride of R4 wherein each of R2, R3, and R4 is a rare earth element, and heat treating the magnet body and the powder below the sintering temperature in vacuum or in an inert gas.
摘要翻译：通过在磁体的表面上形成多个狭缝，由R1-Fe-B组合物的烧结磁体制备稀土永磁体，其中R 1是包括Y和Sc的稀土元素，设置粉末在磁体表面上，包含R2的氧化物，R3的氟化物或R4的氟氧化物的粉末，其中R2，R3和R4各自是稀土元素，并且将磁体和粉末以下的粉末进行热处理在真空或惰性气体中的烧结温度。

2. 发明授权

US07531933B2 Permanent magnet rotating machine 有权
标题翻译：永磁旋转机
公开(公告)号：US07531933B2
公开(公告)日：2009-05-12
申请号：US11846690
申请日：2007-08-29
申请人： Koji Miyata , Hajime Nakamura , Koichi Hirota , Takehisa Minowa
发明人： Koji Miyata , Hajime Nakamura , Koichi Hirota , Takehisa Minowa
IPC分类号： H02K1/27
CPC分类号： H02K1/02 , H01F1/0577 , H01F41/0293 , H02K1/278 , H02K15/03 , H02K29/03
摘要： In a rotating machine comprising a rotor including a rotor core and a plurality of permanent magnet segments, and a stator including a stator core and windings, the permanent magnet segment is obtained by disposing a powder comprising an R2 oxide, R3 fluoride or R4 oxyfluoride on a sintered magnet body of R1—Fe—B composition, wherein R1 to R4 are rare earth elements, and heat treating the powder-covered magnet body. The permanent magnet segment of a cross-sectional shape which is tapered from the center toward opposed ends has a higher coercive force at the ends than at the center.
摘要翻译：在包括转子铁心和多个永久磁铁段的转子和包括定子铁心和绕组的定子的旋转机械中，通过将包含R2氧化物，R3氟化物或R4氟氧化物的粉末设置在 R1-Fe-B组合物的烧结磁体，其中R1至R4为稀土元素，并对粉末覆盖的磁体进行热处理。从中心向相对端逐渐变细的横截面形状的永磁体段在端部具有比中心更高的矫顽力。

3. 发明申请

US20070017601A1 Rare earth permanent magnet, making method, and permanent magnet rotary machine 有权
标题翻译：稀土永磁体，制作方法和永磁旋转机
公开(公告)号：US20070017601A1
公开(公告)日：2007-01-25
申请号：US11489595
申请日：2006-07-20
申请人： Koji Miyata , Koichi Hirota , Hajime Nakamura , Takehisa Minowa
发明人： Koji Miyata , Koichi Hirota , Hajime Nakamura , Takehisa Minowa
IPC分类号： H01F1/03
CPC分类号： H02K1/278 , B22F3/24 , B22F2003/242 , B22F2003/245 , B22F2003/248 , B22F2998/00 , B22F2998/10 , C22C38/005 , H01F1/0577 , H01F41/0293 , H02K15/03 , C22C33/0278 , B22F3/10 , B22F2201/10 , B22F2201/20
摘要： A rare earth permanent magnet is prepared from a sintered magnet body of a R1—Fe—B composition wherein R1 is a rare earth element inclusive of Y and Sc, by forming a plurality of slits in a surface of the magnet body, disposing a powder on the magnet body surface, the powder comprising an oxide of R2, a fluoride of R3, or an oxyfluoride of R4 wherein each of R2, R3, and R4 is a rare earth element, and heat treating the magnet body and the powder below the sintering temperature in vacuum or in an inert gas.
摘要翻译：稀土永磁体由R 1 -Fe-B组合物的烧结磁体制备，其中R 1是含有Y和Sc的稀土元素，由R 1〜在磁体表面形成多个狭缝，在粉末表面上设置粉末，该粉末包含R 2氧化物，R 3 O 3的氟化物，或R 4的氟氧化物，其中R 2，R 3和R 4中的每一个是罕见的并且在真空或惰性气体中将磁体和粉末热处理在烧结温度以下。

4. 发明授权

US08695210B2 Method of manufacturing an Nd based sintered magnet 有权
标题翻译：制造Nd基烧结磁体的方法
公开(公告)号：US08695210B2
公开(公告)日：2014-04-15
申请号：US12673315
申请日：2009-11-27
申请人： Koji Miyata , Takehisa Minowa , Hajime Nakamura , Koichi Hirota , Masakatsu Honshima
发明人： Koji Miyata , Takehisa Minowa , Hajime Nakamura , Koichi Hirota , Masakatsu Honshima
IPC分类号： H01F7/02 , H01F1/047
CPC分类号： H01F1/01 , H01F1/047 , H01F1/0555 , H01F1/0577 , H01F1/06 , H01F41/02 , H01F41/026 , H01F41/0266 , H01F41/0293 , H02K1/278 , Y10T29/49009 , Y10T29/49075 , Y10T29/49076
摘要： A method for preparing the magnet includes the steps of: (a) providing a sintered Nd base magnet block having surfaces and a magnetization direction, (b) coating the surfaces of the magnet block excluding the surface perpendicular to the magnetization direction with a Dy or Tb oxide powder, a Dy or Tb fluoride powder, or a Dy or Tb-containing alloy powder, (c) treating the coated block at a high temperature for causing Dy or Tb to diffuse into the block, and (d) cutting the block in a plane perpendicular to the magnetization direction into a magnet segment having a coercive force distribution on the cut section that the coercive force is high at the periphery and lower toward the inside and a constant coercive force distribution in the magnetization direction.
摘要翻译：一种制备磁体的方法包括以下步骤：（a）提供具有表面和磁化方向的烧结Nd基磁体块，（b）用与Dy或垂直于磁化方向垂直的表面涂覆磁体块的表面，或 Tb氧化物粉末，Dy或Tb氟化物粉末，或含有Dy或Tb的合金粉末，（c）在高温下处理涂层块以使Dy或Tb扩散到块中，（d）在垂直于磁化方向的平面中，在切割部分上具有矫顽力分布的磁体部分，矫顽力在周边高度朝向内部，并且在磁化方向上具有恒定的矫顽力分布。

5. 发明申请

US20110210810A1 ND BASED SINTERED MAGNET AND ITS PREPARATION 有权
标题翻译：基于ND的烧结磁体及其制备
公开(公告)号：US20110210810A1
公开(公告)日：2011-09-01
申请号：US12673315
申请日：2009-11-27
申请人： Koji Miyata , Takehisa Minowa , Hajime Nakamura , Koichi Hirota , Masakatsu Honshima
发明人： Koji Miyata , Takehisa Minowa , Hajime Nakamura , Koichi Hirota , Masakatsu Honshima
IPC分类号： H01F7/02 , B05D5/12
CPC分类号： H01F1/01 , H01F1/047 , H01F1/0555 , H01F1/0577 , H01F1/06 , H01F41/02 , H01F41/026 , H01F41/0266 , H01F41/0293 , H02K1/278 , Y10T29/49009 , Y10T29/49075 , Y10T29/49076
摘要： The invention provides a sintered Nd base magnet which is free of a decline of remanence, has a high coercive force, especially at the edges thereof, is unsusceptible to demagnetization even at high temperature, and is suited for use in permanent magnet rotary machines.
摘要翻译：本发明提供一种烧结Nd基磁体，其不具有剩磁衰减，具有高的矫顽力，特别是在其边缘处，即使在高温下也不易消磁，并且适用于永磁旋转机。

6. 发明申请

US20110068651A1 ROTOR FOR PERMANENT MAGNET ROTATING MACHINE 有权
标题翻译：永磁转鼓机转子
公开(公告)号：US20110068651A1
公开(公告)日：2011-03-24
申请号：US12562303
申请日：2009-09-18
申请人： Koji Miyata , Minori Miyata , Takehisa Minowa , Hajime Nakamura , Koichi Hirota
发明人： Koji Miyata , Minori Miyata , Takehisa Minowa , Hajime Nakamura , Koichi Hirota
IPC分类号： H02K21/14
CPC分类号： H02K21/14 , H02K1/2766 , H02K1/278 , H02K21/12
摘要： In connection with a permanent magnet rotary machine comprising a rotor comprising a rotor core and a plurality of permanent magnet segments embedded in the rotor core and a stator comprising a stator core having a plurality of slots and windings therein, the rotor and the stator being disposed to define a gap therebetween, or a permanent magnet rotary machine comprising a rotor comprising a rotor core and a plurality of permanent magnet segments mounted on the surface of the rotor core and a stator comprising a stator core having a plurality of slots and windings therein, the rotor and the stator being disposed to define a gap therebetween, the rotor wherein each of the permanent magnet segments is an assembly of further divided permanent magnet pieces, and the coercive force near the surface of the magnet piece is higher than that in the interior of the magnet piece.
摘要翻译：与包括转子芯和嵌入在转子芯中的多个永磁体段的转子相连接的永磁旋转机构和定子包括具有多个槽和其中的绕组的定子芯，转子和定子被布置以限定它们之间的间隙，或永久磁铁旋转机械，其包括转子，该转子包括转子芯和安装在转子芯的表面上的多个永磁体段，定子包括定子芯，该定子芯具有多个槽和绕组，转子和定子被设置成在它们之间限定间隙，转子，其中每个永磁体段是另外分割的永久磁体块的组件，并且磁体片表面附近的矫顽力高于内部的磁铁片。

7. 发明授权

US08638017B2 Rotor for permanent magnet rotating machine 有权
标题翻译：转子永磁旋转机
公开(公告)号：US08638017B2
公开(公告)日：2014-01-28
申请号：US12562303
申请日：2009-09-18
申请人： Takehisa Minowa , Hajime Nakamura , Koichi Hirota , Minori Miyata , Atsushi Miyata
发明人： Koji Miyata , Takehisa Minowa , Hajime Nakamura , Koichi Hirota
IPC分类号： H02K21/12 , H02K21/14
CPC分类号： H02K21/14 , H02K1/2766 , H02K1/278 , H02K21/12
摘要： In connection with a permanent magnet rotary machine comprising a rotor comprising a rotor core and a plurality of permanent magnet segments embedded in the rotor core and a stator comprising a stator core having a plurality of slots and windings therein, the rotor and the stator being disposed to define a gap therebetween, or a permanent magnet rotary machine comprising a rotor comprising a rotor core and a plurality of permanent magnet segments mounted on the surface of the rotor core and a stator comprising a stator core having a plurality of slots and windings therein, the rotor and the stator being disposed to define a gap therebetween, the rotor wherein each of the permanent magnet segments is an assembly of further divided permanent magnet pieces, and the coercive force near the surface of the magnet piece is higher than that in the interior of the magnet piece.
摘要翻译：与包括转子芯和嵌入在转子芯中的多个永磁体段的转子相连接的永磁旋转机构和定子包括具有多个槽和其中的绕组的定子芯，转子和定子被布置以限定它们之间的间隙，或永久磁铁旋转机械，其包括转子，该转子包括转子芯和安装在转子芯的表面上的多个永磁体段，定子包括定子芯，该定子芯具有多个槽和绕组，转子和定子被设置成在它们之间限定间隙，转子，其中每个永磁体段是另外分割的永久磁体块的组件，并且磁体片表面附近的矫顽力高于内部的磁铁片。

8. 发明申请

US20100253173A1 AXIAL GAP TYPE CORELESS ROTATING MACHINE 有权
标题翻译：轴承类型无缝旋转机
公开(公告)号：US20100253173A1
公开(公告)日：2010-10-07
申请号：US12676062
申请日：2008-09-10
申请人： Koji Miyata , Minori Miyata , Atsushi Miyata , Hideki Kobayashi , Naoki Watanabe , Takehisa Minowa
发明人： Koji Miyata , Minori Miyata , Atsushi Miyata , Hideki Kobayashi , Naoki Watanabe , Takehisa Minowa
IPC分类号： H02K3/18
CPC分类号： H02K3/47 , H02K16/00 , H02K21/24
摘要： A high-output and highly efficient axial gap type rotating machine capable of reducing an eddy current generated in a winding wire and supplying a larger current is provided. The axial gap type rotating machine may include a housing, a rotating shaft rotatably supported in the housing; two rotors capable of rotating integrally with the rotating shaft, and a stator fixed to the housing, the stator disposed in an air gap formed by the rotating plates disposed to face each other, the stator including a fixing plate and coils disposed in a circle on the fixing plate so as to face the circles of the permanent magnets, wherein each of the coils includes a winding wire formed by a bundle of at least two coil conductors having rectangular cross sections by aligning at least one of long sides and short sides thereof, and the winding wire has an outer circumference covered with an insulating coating and is wound such that the long sides in cross section of the coil conductors are positioned perpendicular to the magnetic pole surfaces of the permanent magnets.
摘要翻译：提供了能够减少绕组线中产生的涡电流并提供较大电流的高输出和高效率轴向间隙型旋转机。轴向间隙型旋转机械可以包括壳体，可旋转地支撑在壳体中的旋转轴; 能够与旋转轴一体旋转的两个转子和固定到壳体的定子，定子设置在由彼此相对设置的旋转板形成的空气间隙中，定子包括固定板和设置成圆圈的线圈所述固定板朝向所述永磁体的圆周，其中每个所述线圈包括由具有矩形横截面的至少两个线圈导体的束形成的绕组，所述绕组线具有通过对准其长边和短边中的至少一个，并且绕组线具有覆盖有绝缘涂层的外周，并且被卷绕成使得线圈导体的横截面的长边垂直于永磁体的磁极表面定位。

9. 发明授权

US08299676B2 Axial gap type coreless rotating machine 有权
标题翻译：推力间隙型无芯旋转机
公开(公告)号：US08299676B2
公开(公告)日：2012-10-30
申请号：US12676062
申请日：2008-09-10
申请人： Koji Miyata , Minori Miyata, legal representative , Atsushi Miyata, legal representative , Hideki Kobayashi , Naoki Watanabe , Takehisa Minowa
发明人： Koji Miyata , Hideki Kobayashi , Naoki Watanabe , Takehisa Minowa
IPC分类号： H02K17/00
CPC分类号： H02K3/47 , H02K16/00 , H02K21/24
摘要： A high-output and highly efficient axial gap type rotating machine capable of reducing an eddy current generated in a winding wire and supplying a larger current is provided. The axial gap type rotating machine may include a housing, a rotating shaft rotatably supported in the housing; two rotors capable of rotating integrally with the rotating shaft, and a stator fixed to the housing, the stator disposed in an air gap formed by the rotating plates disposed to face each other, the stator including a fixing plate and coils disposed in a circle on the fixing plate so as to face the circles of the permanent magnets, wherein each of the coils includes a winding wire formed by a bundle of at least two coil conductors having rectangular cross sections by aligning at least one of long sides and short sides thereof, and the winding wire has an outer circumference covered with an insulating coating and is wound such that the long sides in cross section of the coil conductors are positioned perpendicular to the magnetic pole surfaces of the permanent magnets.
摘要翻译：提供了能够减少绕组线中产生的涡电流并提供较大电流的高输出和高效率轴向间隙型旋转机。轴向间隙型旋转机械可以包括壳体，可旋转地支撑在壳体中的旋转轴; 能够与旋转轴一体旋转的两个转子和固定到壳体的定子，定子设置在由彼此相对设置的旋转板形成的空气间隙中，定子包括固定板和设置成圆圈的线圈所述固定板朝向所述永磁体的圆周，其中每个所述线圈包括由具有矩形横截面的至少两个线圈导体的束形成的绕组，所述绕组线具有通过对准其长边和短边中的至少一个，并且绕组线具有覆盖有绝缘涂层的外周，并且被卷绕成使得线圈导体的横截面的长边垂直于永磁体的磁极表面定位。

10. 发明授权

US08115364B2 Permanent magnet generator and wind power generator having a multi-stage rotor and stator 有权
标题翻译：具有多级转子和定子的永磁发电机和风力发电机
公开(公告)号：US08115364B2
公开(公告)日：2012-02-14
申请号：US12040085
申请日：2008-02-29
申请人： Takehisa Minowa , Hideki Kobayashi , Koji Miyata
发明人： Takehisa Minowa , Hideki Kobayashi , Koji Miyata
IPC分类号： H02K1/22 , H02K16/02 , H02K16/00 , H02K21/10
CPC分类号： H02K16/00 , H02K7/1838 , H02K21/24
摘要： A permanent magnet power generator which, when used at an electric power generating facility such as a wind power plant, etc., would not be bulky and would not impede wind capture by a wind turbine; instead, it can raise the generated voltage without impeding wind capture has a generator shaft; at least three rotors, which are secured with the generator shaft, constituted by a plurality of plate-shaped structures having a permanent magnet attached thereto, and each disposed in the longitudinal direction of the generator shaft; and a stator, which is plate-shaped with a stator coil disposed in at least two gaps formed by the rotors, evenly-spaced apart from the generator shaft. The rotors and stators are disposed alternately in the longitudinal direction of the generator shaft, with a total of at least five stages. Also a wind power generator with a propeller on the shaft of this permanent magnet generator.
摘要翻译：一种在诸如风力发电设备等发电设备使用时的永磁发电机不会笨重，并且不会阻碍风力涡轮机的风力捕获; 相反，它可以提高发电电压而不阻碍捕获具有发电机轴; 至少三个由发电机轴固定的转子，由多个安装有永久磁铁的板状结构构成，并分别设置在发电机轴的纵向方向上; 以及定子，其具有定子线圈，该定子线圈布置在由所述转子形成的至少两个间隙中，与所述发电机轴均匀间隔开。转子和定子在发电机轴的纵向方向上交替设置，总共至少五级。另外在这个永磁发电机的轴上还有一个带螺旋桨的风力发电机。

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