利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

236 条记录 (耗时 0.022 秒)

    MAGNETIC BALANCE TYPE CURRENT SENSOR
    1.
    发明申请
    MAGNETIC BALANCE TYPE CURRENT SENSOR 审中-公开
    磁性平衡型电流传感器

    公开(公告)号：US20120306491A1

    公开(公告)日：2012-12-06

    申请号：US13587819

    申请日：2012-08-16

    申请人： Yosuke IDE ,  Masamichi SAITO ,  Akira TAKAHASHI ,  Kenichi ICHINOHE

    发明人： Yosuke IDE ,  Masamichi SAITO ,  Akira TAKAHASHI ,  Kenichi ICHINOHE

    IPC分类号： G01R33/09

    CPC分类号： G01R15/205

    摘要： A magnetic balance type current sensor of the present invention includes a magnetic field detection bridge circuit including four magnetoresistance effect elements whose resistance values change owing to application of an induction magnetic field from a current to be measured. Each of the four magnetoresistance effect elements includes a ferromagnetic fixed layer formed by causing a first ferromagnetic film and a second ferromagnetic film to be antiferromagnetically coupled to each other via an antiparallel coupling film, a non-magnetic intermediate layer, and a soft magnetic free layer. The first and second ferromagnetic films are approximately equal in Curie temperature to each other, a difference in magnetization amount therebetween is substantially zero, and the magnetization directions of the ferromagnetic fixed layers of three magnetoresistance effect elements are different by 180 degrees from the magnetization direction of the ferromagnetic fixed layer of the remaining one magnetoresistance effect element.

    摘要翻译： 本发明的磁平衡型电流传感器包括磁场检测桥电路，其包括四个磁阻效应元件，其电阻值由于施加来自待测电流的感应磁场而变化。 四个磁阻效应元件中的每一个包括通过使第一铁磁膜和第二铁磁膜经由反平行耦合膜，非磁性中间层和软磁性自由层彼此反铁磁耦合而形成的铁磁性固定层 。 第一和第二铁磁膜在居里温度彼此大致相等，其间的磁化强度差基本为零，三个磁阻效应元件的铁磁性固定层的磁化方向与磁化方向的磁化方向相差180度 剩余的一个磁阻效应元件的铁磁固定层。

    Self-pinned CPP giant magnetoresistive head with antiferromagnetic film absent from current path
    8.
    发明授权
    Self-pinned CPP giant magnetoresistive head with antiferromagnetic film absent from current path 有权
    具有反铁磁膜的自固定CPP巨磁阻磁头，不存在电流路径

    公开(公告)号：US07599155B2

    公开(公告)日：2009-10-06

    申请号：US10823474

    申请日：2004-04-13

    申请人： Masamichi Saito ,  Yoshihiro Nishiyama ,  Yosuke Ide ,  Eiji Umetsu ,  Naoya Hasegawa ,  Yasuo Hayakawa

    发明人： Masamichi Saito ,  Yoshihiro Nishiyama ,  Yosuke Ide ,  Eiji Umetsu ,  Naoya Hasegawa ,  Yasuo Hayakawa

    IPC分类号： G11B5/39

    CPC分类号： G11B5/3903 ,  G11B5/3163 ,  G11B5/398

    摘要： A CPP giant magnetoresistive head includes lower and upper shield layers, and a giant magnetoresistive element disposed between the upper and lower shield layers and including a pinned magnetic layer, a free magnetic layer and a nonmagnetic layer disposed between the pinned magnetic layer and the free magnetic layer. In the CPP giant magnetoresistive head, the pinned magnetic layer extends to the rear of the nonmagnetic layer and the free magnetic layer in the height direction, and the dimension of the pinned magnetic layer in the height direction is larger than that in the track width direction. Also, the pinned magnetic layer comprises a magnetic material having a positive magnetostriction constant or a magnetic material having high coercive force, and the end of the pinned magnetic layer is exposed at a surface facing a recording medium.

    摘要翻译： CPP巨磁阻头包括下屏蔽层和上屏蔽层，以及设置在上屏蔽层和下屏蔽层之间的巨磁阻元件，包括固定磁性层，自由磁性层和设置在被钉扎的磁性层和自由磁性层之间的非磁性层 层。 在CPP巨磁阻磁头中，被钉扎的磁性层在高度方向上延伸到非磁性层的后部和自由磁性层，并且被钉扎的磁性层在高度方向上的尺寸大于轨道宽度方向上的尺寸 。 此外，钉扎磁性层包括具有正的磁致伸缩常数的磁性材料或具有高矫顽力的磁性材料，并且被钉扎的磁性层的端部在面向记录介质的表面上暴露。

    Magnetic detectible head comprising free layer
    9.
    发明授权
    Magnetic detectible head comprising free layer 有权
    磁性可检测头包括自由层

    公开(公告)号：US07558029B2

    公开(公告)日：2009-07-07

    申请号：US11364533

    申请日：2006-02-27

    申请人： Yosuke Ide ,  Masamichi Saito ,  Masahiko Ishizone ,  Naoya Hasegawa

    发明人： Yosuke Ide ,  Masamichi Saito ,  Masahiko Ishizone ,  Naoya Hasegawa

    IPC分类号： G11B5/127

    CPC分类号： G11B5/3932 ,  B82Y25/00 ,  G11B5/3903 ,  H01F10/1936 ,  H01F10/3281 ,  H01F10/3295 ,  H01L43/10

    摘要： There is provided a magnetic detecting element having a large ΔRA. A free magnetic layer has a three layer structure in which a CoFe layer, an NiaFeb alloy layer (where a and b are represented by at %, 0≦a≦25, and a+b=100), and a CoFe layer are laminated from the bottom. If the at % of Ni in an NiFe alloy that exists in the free magnetic layer is in this range, a spin-dependent bulk scattering coefficient β increases, and the product ΔRA of the resistance variation of the magnetic detecting element and the area of the element can be made increased.

    摘要翻译： 提供了具有大DeltaRA的磁检测元件。 自由磁性层具有三层结构，其中CoFe层，NiaFeb合金层（其中a和b由以％表示，0 <= a <= 25，a + b = 100）和CoFe层 从底部层压。 如果存在于自由磁性层中的NiFe合金中的Ni的at％在该范围内，则自旋相关体散射系数β增加，并且磁检测元件的电阻变化的乘积DeltaRA与 元素可以增加。