专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

21. 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。

22. 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。

23. 发明授权

US07006332B2 Disk drive comprising suspension for magnetic head with positioning of slider to predetermined track through oscillation of voice coil motor 失效
标题翻译：磁盘驱动器包括用于磁头的悬架，其通过音圈电机的振荡将滑块定位到预定轨道
公开(公告)号：US07006332B2
公开(公告)日：2006-02-28
申请号：US10345309
申请日：2003-01-16
申请人： Hajime Nakamura , Takehisa Minowa
发明人： Hajime Nakamura , Takehisa Minowa
IPC分类号： G11B5/56
CPC分类号： G11B5/5552
摘要： A suspension for magnetic head, for supporting a magnetic head slider on which a magnetic head for recording/reproduction of information on a magnetic recording medium is mounted, wherein one end of the suspension is fixed to a stator portion fixed to the tip end of a load beam of the suspension, a gimbal portion and a rotor portion oscillatably supported by metallic micro-beams formed by bending are provided on the side of the other end of the suspension, and the magnetic head slider is attached to the gimbal portion, whereby the rotor portion and the magnetic head slider attached to the gimbal portion as one body with the rotor portion can be oscillated in parallel to the surface of a magnetic recording disk, independently of the driving of the slider by a coarse actuator.
摘要翻译：一种用于支撑用于支撑磁头滑动器的磁头的悬架，其上安装有用于在磁记录介质上记录/再现信息的磁头，其中悬架的一端固定到固定到磁记录介质的末端的定子部分在悬架的另一端侧设置悬架的负载梁，由弯曲形成的金属微型梁可摆动地支撑的万向节部分和转子部分，磁头滑块附接到万向节部分，由此，转子部分和附接到万向节部分的磁头滑块可以与转子部分一体地附接到平行于磁记录盘的表面的振动，而与粗动作器的滑块的驱动无关。

24. 发明申请

US20050121984A1 Small-size direct-acting actuator 有权
标题翻译：小型直动执行机构
公开(公告)号：US20050121984A1
公开(公告)日：2005-06-09
申请号：US11004859
申请日：2004-12-07
申请人： Hajime Nakamura , Takehisa Minowa
发明人： Hajime Nakamura , Takehisa Minowa
IPC分类号： H01F7/122 , H01F7/14 , H02K33/06 , H02K41/035 , H02K41/00 , H02K33/00
CPC分类号： H02K33/06 , H01F7/122 , H01F7/14 , H01F2007/068
摘要： A direct-acting actuator is provided comprising a stator section (16), an attachment section (6) secured to the stator section, micro-beams (8, 10) extending from the attachment section, a rotor section (12) supported for swing motion by the micro-beams, a permanent magnet (18) disposed in the stator section, and a coil (4) disposed in the rotor section. Electric current is conducted through the coil in the magnetic field created by the permanent magnet for causing the micro-beams to be displaced for inducing swing motion of the rotor section. The actuator can be assembled to a small size, typically a width of 1-10 mm, a length of 1-10 mm, and a height of 0.1-5 mm.
摘要翻译：提供了一种直动式致动器，其包括定子部分（16），固定到定子部分的附接部分（6），从连接部分延伸的微梁（8,10），支撑成摆动的转子部分通过微梁的运动，设置在定子部分中的永磁体（18）和设置在转子部分中的线圈（4）。在由永久磁铁产生的磁场中，电流通过线圈传导，以使微波束发生位移以引起转子部分的摆动。致动器可以组装成小尺寸，通常为1-10mm的宽度，长度为1-10mm，高度为0.1-5mm。

25. 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。

26. 发明授权

US08377233B2 Preparation of rare earth permanent magnet material 有权
标题翻译：稀土永磁材料的制备
公开(公告)号：US08377233B2
公开(公告)日：2013-02-19
申请号：US13033943
申请日：2011-02-24
申请人： Hajime Nakamura , Koichi Hirota , Takehisa Minowa
发明人： Hajime Nakamura , Koichi Hirota , Takehisa Minowa
IPC分类号： H01F1/03 , H01F1/00 , H01F1/04 , H01F1/14 , B22F3/00 , C04B35/64
CPC分类号： B22F9/023 , B22F2009/044 , B22F2998/10 , B22F2999/00 , H01F1/0577 , H01F41/0293 , H01J37/32669 , B22F9/04 , B22F3/02 , B22F3/10 , B22F2201/11 , B22F2201/02
摘要： A method for preparing a rare earth permanent magnet material comprises the steps of: disposing a powder comprising one or more members selected from an oxide of R2, a fluoride of R3, and an oxyfluoride of R4 wherein R2, R3 and R4 each are one or more elements selected from among rare earth elements inclusive of Y and Sc on a sintered magnet form of a R1—Fe—B composition wherein R1 is one or more elements selected from among rare earth elements inclusive of Y and Sc, and then heat treating the magnet form and the powder at a temperature equal to or below the sintering temperature of the magnet in vacuum or in an inert gas. The result high performance, compact or thin permanent magnet has a high remanence and coercivity at a high productivity.
摘要翻译：一种制备稀土永磁材料的方法包括以下步骤：设置包含选自R 2的氧化物，R 3的氟化物和R 4的氟氧化物的一种或多种的粉末，其中R 2，R 3和R 4各自为一个或从包括Y和Sc的稀土元素中选出的更多的元素是R1-Fe-B组合物的烧结磁体形式，其中R1是选自包括Y和Sc的稀土元素中的一种或多种元素，然后热处理磁体形式和粉末，其温度等于或低于磁体在真空或惰性气体中的烧结温度。结果，高性能，紧凑或薄的永磁体在高生产率下具有高剩磁和矫顽力。

27. 发明授权

US08269392B2 Rotor for permanent magnet rotary machine 有权
标题翻译：转子永磁旋转机
公开(公告)号：US08269392B2
公开(公告)日：2012-09-18
申请号：US12893772
申请日：2010-09-29
申请人： Yuhito Doi , Takehisa Minowa , Hajime Nakamura , Koichi Hirota
发明人： Yuhito Doi , Takehisa Minowa , Hajime Nakamura , Koichi Hirota
IPC分类号： H02K21/12
CPC分类号： H02K1/276 , H01F1/0577 , H01F41/0293 , H02K1/278
摘要： A permanent magnet rotary machine comprises a rotor comprising a rotor core and a plurality of permanent magnet segments embedded in the rotor core and a stator having a plurality of coils and disposed to define a gap with the rotor, or a permanent magnet rotary machine comprises a rotor comprising a rotor core and a plurality of permanent magnet segments mounted on the surface of the rotor core and a stator having a plurality of coils and disposed to define a gap with the rotor. In the rotor, each permanent magnet segment is an assembly of divided permanent magnet pieces, the coercive force near the surface of the magnet piece is higher than that in the interior of the magnet piece, and the assembly allows for electrical conduction between the magnet pieces.
摘要翻译：永磁旋转机械包括转子，转子包括转子芯和嵌入在转子芯中的多个永磁体段，以及具有多个线圈并且设置成与该转子间隔开的定子，或者永磁旋转机械包括：转子，其包括转子芯和安装在转子芯的表面上的多个永磁体段和具有多个线圈并设置成与转子限定间隙的定子。在转子中，每个永磁体段是分开的永久磁体块的组件，靠近磁体片表面的矫顽力高于磁片内部的矫顽力，并且组件允许磁体片之间的导电。

28. 发明授权

US08075707B2 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：US08075707B2
公开(公告)日：2011-12-13
申请号：US11916506
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： H01F1/057
CPC分类号： B22F7/02 , C21D6/00 , C22C38/005 , H01F1/0577 , H01F41/0293
摘要： A method for preparing a rare earth permanent magnet material comprises the steps of disposing a powder on a surface of a sintered magnet body of R1aTbAcMd composition wherein R1 is a rare earth element inclusive of Sc and Y, T is Fe and/or Co, A is boron (B) and/or carbon (C), M is Al, Cu, Zn, In, Si, P, S, Ti, V, Cr, Mn, Ni, Ga, Ge, Zr, Nb, Mo, Pd, Ag, Cd, Sn, Sb, Hf, Ta, or W, said powder comprising an oxide of R2, a fluoride of R3 or an oxyfluoride of R4 wherein R2, R3, and R4 are rare earth elements inclusive of Sc and Y and having an average particle size equal to or less than 100 μm, heat treating the magnet body and the powder at a temperature equal to or below the sintering temperature of the magnet body for absorption treatment for causing R2, R3, and R4 in the powder to be absorbed in the magnet body, and repeating the absorption treatment at least two times. According to the invention, a rare earth permanent magnet material can be prepared as 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包括以下步骤：在R1aTbAcMd组合物的烧结磁体的表面上设置粉末，其中R1是包括Sc和Y的稀土元素，T是Fe和/或Co，A 是硼（B）和/或碳（C），M是Al，Cu，Zn，In，Si，P，S，Ti，V，Cr，Mn，Ni，Ga，Ge，Zr，Nb，Mo，，Ag，Cd，Sn，Sb，Hf，Ta或W，所述粉末包含R2的氧化物，R3的氟化物或R4的氟氧化物，其中R2，R3和R4是包括Sc和Y的稀土元素，具有等于或小于100μm的平均粒度，在等于或低于磁体的烧结温度的温度下对磁体和粉末进行热处理以进行吸收处理，以使粉末中的R2，R3和R4成为被吸收在磁体中，并且重复吸收处理至少两次。根据本发明，稀土永磁材料可以制备成具有高性能和最小量的Tb或Dy的R-Fe-B烧结磁体。

29. 发明申请

US20110080065A1 ROTOR FOR AXIAL GAP-TYPE PERMANENT MAGNETIC ROTATING MACHINE 有权
标题翻译：旋转齿轮型永磁旋转机
公开(公告)号：US20110080065A1
公开(公告)日：2011-04-07
申请号：US12889849
申请日：2010-09-24
申请人： Naoki Watanabe , Yuhito Doi , Takehisa Minowa , Hajime Nakamura , Koichi Hirota
发明人： Naoki Watanabe , Yuhito Doi , Takehisa Minowa , Hajime Nakamura , Koichi Hirota
IPC分类号： H02K21/24
CPC分类号： H02K1/2793 , H01F41/0293
摘要： An axial gap-type permanent magnetic rotating machine comprises a rotor comprising a rotating shaft having an axis of rotation, a rotor yoke of disc shape radially extending from the shaft, and a plurality of permanent magnet segments circumferentially arranged on a surface of the rotor yoke such that each permanent magnet segment may have a magnetization direction parallel to the axis of rotation, and a stator having a plurality of circumferentially arranged coils and disposed to define an axial gap with the rotor. In the rotor, each permanent magnet segment is an assembly of two or more 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：一种轴向间隙型永磁旋转机械，包括：转子，其包括具有旋转轴的旋转轴，从轴径向延伸的盘形转子轭，以及周向布置在转子轭的表面上的多个永磁体段使得每个永磁体段可以具有平行于旋转轴线的磁化方向，以及具有多个周向排列的线圈并且被设置成限定与转子的轴向间隙的定子。在转子中，每个永磁体段是两个或更多个分开的永磁体片的组件，并且磁体片表面附近的矫顽力高于磁片内部的矫顽力。

30. 发明申请

US20110079325A1 METHOD FOR ASSEMBLING ROTOR FOR USE IN IPM ROTARY MACHINE 有权
标题翻译：用于组装转子的方法用于IPM旋转机
公开(公告)号：US20110079325A1
公开(公告)日：2011-04-07
申请号：US12889835
申请日：2010-09-24
申请人： Yuhito Doi , Takehisa Minowa , Hajime Nakamura , Koichi Hirota
发明人： Yuhito Doi , Takehisa Minowa , Hajime Nakamura , Koichi Hirota
IPC分类号： H01F13/00 , C23C22/00 , C21D1/04 , H02K15/02
CPC分类号： H02K15/03 , H01F7/0221 , H02K1/2766 , Y10T29/49009 , Y10T29/49012
摘要： An interior permanent magnet (IPM) rotary machine comprises a rotor comprising a rotor yoke having bores and a plurality of permanent magnet segments disposed in the bores of the rotor yoke, each permanent magnet segment consisting of a plurality of magnet pieces. The rotor is assembled by inserting the plurality of unbound magnet pieces in each bore for stacking the magnet pieces, and fixedly securing the stacked magnet pieces in the bore.
摘要翻译：内置永磁（IPM）旋转机器包括转子，该转子包括具有孔的转子轭和设置在转子轭的孔中的多个永磁体段，每个永磁体段由多个磁片组成。通过将多个未结合的磁体片插入每个孔中以堆叠磁体片并将堆叠的磁体片牢固地固定在孔中来组装转子。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式