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公开(公告)号:US20070027599A1
公开(公告)日:2007-02-01
申请号:US11486050
申请日:2006-07-14
申请人: Morio Sakai , Koichi Hirota
发明人: Morio Sakai , Koichi Hirota
IPC分类号: G06F17/00
CPC分类号: B60N2/888
摘要: A headrest apparatus for a vehicle includes a headrest rear portion, a headrest front portion being movable between a fully closed position and a fully open position, a driving means for moving the headrest front portion, a capacitance sensor provided at the headrest front portion for detecting a change in capacitance, and a controlling means for controlling the driving means and comparing an amount of change in capacitance detected by the capacitance sensor to a predetermined threshold value when the headrest front portion moves towards the fully open position. The controlling means determines that the headrest front portion is positioned close to a head of an occupant when the amount of change in capacitance exceeds the threshold value. Further, the controlling means detects a capacitance change per unit moving distance of the capacitance sensor at a predetermined timing and changes the threshold value based on the detected result.
摘要翻译: 一种用于车辆的头枕装置,包括:头枕后部;头枕前部,其能够在完全关闭位置和完全打开位置之间移动;用于使头枕前部移动的驱动装置,设置在头枕前部的电容传感器,用于检测 电容变化,以及控制装置,用于控制驱动装置,并且当头枕前部朝向完全打开位置移动时,将由电容传感器检测到的电容变化量与预定阈值进行比较。 当电容变化量超过阈值时,控制装置确定头枕前部位于靠近乘员头部的位置。 此外,控制装置在预定定时检测电容传感器的每单位移动距离的电容变化,并根据检测结果改变阈值。
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公开(公告)号:US20060000522A1
公开(公告)日:2006-01-05
申请号:US11214768
申请日:2005-08-31
申请人: Koichi Hirota , Takehisa Minowa
发明人: Koichi Hirota , Takehisa Minowa
IPC分类号: H01F1/057
CPC分类号: C22B59/00 , C22B7/002 , C22B9/10 , Y02P10/214 , Y02P10/216
摘要: Rare earth magnet scrap and/or sludge is remelted for reuse. Once a rare earth-free magnet-constituent metal feed is loaded in a melting furnace and heated into a melt, a rare earth-containing metal feed and the rare earth magnet scrap and/or sludge are added to the melt, a particulate flux of an alkali metal, alkaline earth metal or rare earth metal halide and having an average particle size of 1-50 μm, preferably wrapped in a metal foil, is added to the melt, and the resulting mixture is melted, from which an alloy ingot is obtained. The valuable elements in the scrap and/or sludge can be recycled. Better separation between the slag and the molten metal ensures that the ingot is obtained from the melt in a high yield.
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公开(公告)号:US06322637B1
公开(公告)日:2001-11-27
申请号:US09588536
申请日:2000-06-07
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。
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公开(公告)号:US08983736B2
公开(公告)日:2015-03-17
申请号:US14005088
申请日:2012-03-13
申请人: Koichi Hirota , Yoshimasa Asano , Hitoshi Takayanagi , Masayuki Nomura , Tatsuya Shimizu , Hironori Kanasaki
发明人: Koichi Hirota , Yoshimasa Asano , Hitoshi Takayanagi , Masayuki Nomura , Tatsuya Shimizu , Hironori Kanasaki
CPC分类号: B60K11/08 , B60K11/085 , F01P7/12 , F01P11/10 , F01P2031/00 , G06F1/00 , Y02T10/88
摘要: A grille shutter control device is provided with a control section configured so as to open and close a shutter adapted to be provided in an air introduction path for introducing air ahead of the vehicle into an engine compartment. The grille shutter control device drives and controls first and second drive units. The grille shutter control device is provided with: an abnormality detecting section configured to detect an abnormality in the operation of the shutter on the basis of the condition of the shutter after the start of operation thereof; and an informing section for informing, on the basis of an abnormality in the operation detected by the abnormality detection section, the user of the abnormality in the operation of the shutter.
摘要翻译: 格栅快门控制装置设置有控制部,该控制部构造成打开和关闭适于设置在空气引入路径中的挡板,用于将车辆前方的空气引入发动机室。 格栅快门控制装置驱动和控制第一和第二驱动单元。 格栅快门控制装置设置有:异常检测部,被配置为基于其开始操作之后的快门的状态来检测快门的操作中的异常; 以及通知部,用于基于由异常检测部检测到的操作的异常,通知用户操作快门的异常。
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公开(公告)号:US08823235B2
公开(公告)日:2014-09-02
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: H02K1/27
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。
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公开(公告)号:US08695210B2
公开(公告)日:2014-04-15
申请号:US12673315
申请日:2009-11-27
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。
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公开(公告)号:US20110210810A1
公开(公告)日:2011-09-01
申请号:US12673315
申请日:2009-11-27
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。
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公开(公告)号:US20110150691A1
公开(公告)日:2011-06-23
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
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。
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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。
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公开(公告)号:US07866745B2
公开(公告)日:2011-01-11
申请号:US12097052
申请日:2005-12-12
申请人: Koichi Hirota , Hitoshi Takayanagi
发明人: Koichi Hirota , Hitoshi Takayanagi
CPC分类号: B60N2/865 , B60N2/002 , B60N2/0224 , B60N2/888
摘要: A head rest rear portion is supported to a seat back. A head rest front portion is movable forward and backward between a full-close position that is brought into contact with or close to the head rest rear portion and a full-open position that is a predetermined distance away from the head rest rear portion. A drive mechanism moves the head rest front portion. A detection sensor provided in the head rest front portion includes an electrode having a head portion detecting antenna electrode for detecting a head portion of an occupant at a time when the head rest front portion moves in the full-open position direction, and a finger detecting antenna electrode for detecting a finger of the occupant in a rear seat or the like at a time when the head rest front portion moves in the full-close position direction.
摘要翻译: 头枕后部支撑在座椅靠背上。 头枕前部可在与头枕后部接触或靠近头枕后部的完全关闭位置和远离头枕后部的预定距离的全开位置之间向前和向后移动。 驱动机构使头枕前部移动。 设置在头枕前部的检测传感器包括:电极,其具有头部检测用天线电极,用于在头枕前部沿全开位置方向移动时检测乘员的头部;以及手指检测 天线电极,用于在头枕前部在全关位置方向上移动时检测后座椅等中的乘员的手指。
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