利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

26 条记录 (耗时 0.027 秒)

    Electric motor
    3.
    发明授权
    Electric motor 失效
    电动马达

    公开(公告)号：US6046517A

    公开(公告)日：2000-04-04

    申请号：US111786

    申请日：1998-07-08

    申请人： Toyoshige Sasaki ,  Chikara Aoshima

    发明人： Toyoshige Sasaki ,  Chikara Aoshima

    IPC分类号： H02K37/14 ,  H02K37/12 ,  H02K37/10

    CPC分类号： H02K37/12

    摘要： An electrical motor includes a cylindrical magnet divided into n regions circularly around at least an outer circumference thereof that are magnetized in alternate polarities. The motor also includes first and second coils arranged in an axial direction of the magnet. The magnet is interposed between the first and second coils. The motor further includes first and second external portions excitable by current flowing through the first and second coils, respectively, so that these portions become first and second external magnetic poles, respectively. The first and second external portions face the outer circumference of the magnet at one side and the other side thereof, respectively. The area of the first and second external portions facing the outer circumference of the first and second coils, respectively, is equal to or smaller than three-quarters of the area of the outer circumference of the first and second coils, respectively. The motor also includes first and second internal portions excitable by current flowing through the first and second coils, respectively, to cause these portions to become first and second internal magnetic poles, respectively. The first and second internal portions face the internal circumference of the magnet on the one and the other sides of the magnet, respectively.

    摘要翻译： 一种电动机包括：圆周磁体，其以至少其外圆周方向以分别极化地被磁化的圆周分割成n个区域。 电动机还包括沿着磁体的轴向布置的第一和第二线圈。 磁体介于第一和第二线圈之间。 电动机还包括分别通过电流流过第一和第二线圈而激发的第一和第二外部部分，使得这些部分分别变成第一和第二外部磁极。 第一外部部分和第二外部部分分别在磁体的一侧和另一侧面对外周。 分别与第一和第二线圈的外圆周面对的第一和第二外部部分的面积分别等于或小于第一和第二线圈的外圆周面积的四分之三。 电动机还包括分别通过电流流过第一和第二线圈而激发的第一和第二内部部分，以使这些部分分别成为第一和第二内部磁极。 第一和第二内部部分分别面对磁体的一侧和另一侧上的磁体的内圆周。

    Substrate material for a magnetic head
    4.
    发明授权
    Substrate material for a magnetic head 失效
    用于磁头的基材

    公开(公告)号：US5914285A

    公开(公告)日：1999-06-22

    申请号：US918756

    申请日：1997-08-25

    申请人： Toyoshige Sasaki ,  Shigeki Mohri ,  Osamu Nakano ,  Shin Mishima ,  Shigeru Kawahara ,  Naoyuki Okamoto

    发明人： Toyoshige Sasaki ,  Shigeki Mohri ,  Osamu Nakano ,  Shin Mishima ,  Shigeru Kawahara ,  Naoyuki Okamoto

    IPC分类号： C04B35/56

    CPC分类号： C04B35/645 ,  C04B35/5603 ,  C04B35/5607 ,  C04B35/5611 ,  C04B35/5626

    摘要： To provide a substrate material having characteristics suitable to a magnetic head for attaining high recording density. A substrate material for a magnetic head comprising a matrix phase of a carbide of one or more of Ti, W and Ta and a dispersion phase of an oxide of one or more of Al.sub.2 O.sub.3, CrO.sub.3, and ZrO.sub.2, in which the material comprises 60 to 95 vol % of the matrix phase of the carbide. Further, a single phase in which the ingredients of carbides as the matrix phase comprise (Ti.sub.j W.sub.m Ta.sub.n)C.sub.x is preferred. Further, oxygen and/or nitrogen may be solid-solubilized in the carbide MeC of the matrix phase wherein Me is one or more of Ti, W, and Ta.

    摘要翻译： 为了提供具有适于磁头的特性以获得高记录密度的基片材料。 一种用于磁头的衬底材料，其包括Ti，W和Ta中的一种或多种的碳化物的基质相和Al 2 O 3，CrO 3和ZrO 2中的一种或多种的氧化物的分散相，其中所述材料包含60至 95体积％的碳化物的基体相。 此外，作为基质相的碳化物成分优选为（TijWmTan）C x的单相。 此外，氧和/或氮可以固溶在基质相的碳化物MeC中，其中Me是Ti，W和Ta中的一种或多种。

    Motor
    5.
    发明授权
    Motor 有权
    发动机

    公开(公告)号：US06411003B1

    公开(公告)日：2002-06-25

    申请号：US09679808

    申请日：2000-10-05

    申请人： Toyoshige Sasaki ,  Chikara Aoshima

    发明人： Toyoshige Sasaki ,  Chikara Aoshima

    IPC分类号： H02K3700

    CPC分类号： H02K37/18 ,  H02K37/14

    摘要： A rotor magnet includes a first polarized layer alternately polarized into different poles while being circumferentially divided into n parts, and a second polarized layer alternately polarized into different poles. An advance phase angle as &thgr;1 with respect to the first polarized layer is set and the magnet is circumferentially divided into n parts. First and second coils are disposed in an axial direction of the rotor magnet. A first outer magnetic pole and a first inner magnetic pole, which are a first stator excited by the first coil, are opposed to an outer peripheral surface and an inner peripheral surface of the rotor, and a second outer magnetic pole, and a second inner magnetic pole which are a second stator excited by the second coil, are opposed to an outer peripheral surface and an inner peripheral surface of the rotor. When a lag phase angle of the second stator with respect to the first stator is set to &thgr;2, the first and second polarized layers and the first and second stators are positioned so that &thgr;1+&thgr;2 are larger than 180/n degrees. As a result, the power output of the motor is enhanced.

    摘要翻译： 转子磁体包括交替极化成不同极的第一极化层，同时被圆周地分成n个部分，以及交替极化成不同极的第二极化层。 设置相对于第一偏振层的θ1相对于第一偏振层的推进相位角，将磁体圆周地分割为n个部分。 第一和第二线圈沿转子磁体的轴向设置。 作为由第一线圈激励的第一定子的第一外磁极和第一内磁极与转子的外周面和内周面以及第二外磁极和第二内磁极 作为由第二线圈激励的第二定子的磁极与转子的外周面和内周面相对。 当第二定子相对于第一定子的滞后相位角被设置为θ2时，第一和第二偏振层以及第一和第二定子被定位成使得θ1+θ2大于180 / n度。 结果，电动机的功率输出增强。

    Linear motor, stage device, and exposing device
    6.
    发明授权
    Linear motor, stage device, and exposing device 有权
    直线电机，平台装置和曝光装置

    公开(公告)号：US6043572A

    公开(公告)日：2000-03-28

    申请号：US172163

    申请日：1998-10-14

    申请人： Shingo Nagai ,  Toyoshige Sasaki ,  Shigeto Kamata

    发明人： Shingo Nagai ,  Toyoshige Sasaki ,  Shigeto Kamata

    IPC分类号： H01L21/027 ,  G03F7/20 ,  H02K41/03 ,  H02K41/00

    CPC分类号： G03F7/70691 ,  H02K41/03

    摘要： A linear motor includes a coil for receiving an electrical current and a first plurality of permanent magnets. The coil and the first plurality of permanent magnets move relative to each other in a direction of relative movement when an electrical current flows through the coil. The permanent magnets are arrayed in the direction of relative movement to form a first array. The direction of polarity of each permanent magnet in the first plurality of permanent magnets is oriented 90.degree. relative to the direction of polarity of an adjacent permanent magnet in the first plurality of permanent magnets. The first plurality of permanent magnets has a main portion and an end portion comprising plural corrective permanent magnets. Each of the plural corrective permanent magnets is smaller than the permanent magnets in the main portion having the same or opposite direction of polarity.

    摘要翻译： 线性电动机包括用于接收电流的线圈和第一多个永磁体。 当电流流过线圈时，线圈和第一多个永磁体在相对移动的方向上相对于彼此移动。 永磁体在相对移动的方向上排列以形成第一阵列。 第一多个永磁体中的每个永磁体的极性方向相对于第一多个永磁体中的相邻永磁体的极性方向取向为90度。 第一多个永磁体具有主要部分和包括多个校正永磁体的端部。 多个校正永磁体中的每一个小于具有相同或相反极性方向的主要部分中的永磁体。

    Thin-film magnetic head with enhanced crosstalk reduction
    8.
    发明授权
    Thin-film magnetic head with enhanced crosstalk reduction 失效
    薄膜磁头与增强的CROSSTALK减少

    公开(公告)号：US5134534A

    公开(公告)日：1992-07-28

    申请号：US489219

    申请日：1990-03-06

    申请人： Toyoshige Sasaki

    发明人： Toyoshige Sasaki

    IPC分类号： G11B5/11 ,  G11B5/29 ,  G11B5/31

    CPC分类号： G11B5/112 ,  G11B5/29 ,  G11B5/3143

    摘要： In a thin-film magnetic head including a magnetic circuit which is composed of upper and lower magnetic layers and a coil made of a conductive layer, a magnetic shield layer made of a conductive material is provided on the upper magnetic layer; and the intensity of the magnetic reluctance of the magnetic shielding action of the magnetic shield layer is arranged to be adjustable.

    摘要翻译： 在包括由上下磁性层构成的磁路和由导电层构成的线圈的薄膜磁头中，在上磁性层上设置由导电材料构成的磁屏蔽层， 并且磁屏蔽层的磁屏蔽作用的磁阻的强度被布置为可调节的。