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    Magnetoresistive head
    2.
    发明授权
    Magnetoresistive head 失效
    磁阻头

    公开(公告)号：US5661621A

    公开(公告)日：1997-08-26

    申请号：US509600

    申请日：1995-07-31

    申请人： Kazuo Kobayashi ,  Hideyuki Kikuchi ,  Hitoshi Kishi ,  Mitsuru Otagiri

    发明人： Kazuo Kobayashi ,  Hideyuki Kikuchi ,  Hitoshi Kishi ,  Mitsuru Otagiri

    IPC分类号： G11B5/39

    CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/3903 ,  G11B5/3925 ,  G11B5/3929 ,  G11B5/3967 ,  G11B2005/3996

    摘要： A magnetoresistive head used for reading information signals from a magnetic recording medium using a spin valve magnetoresistance effect, comprises a first ferromagnetic layer and a second ferromagnetic layer both are separated by a first nonmagnetic metal layer, a hard magnetic layer formed so as to contact to the second ferromagnetic layer, and a third ferromagnetic layer formed on the hard magnetic layer via a second nonmagnetic metal layer for shutting off exchange coupling and coupled to the second ferromagnetic layer and the hard magnetic layer by static magnetic combination.

    摘要翻译： 用于使用自旋阀磁阻效应从磁记录介质读取信息信号的磁阻头包括第一铁磁层和第二铁磁层，它们都由第一非磁性金属层分离，形成为与 第二铁磁层和通过第二非磁性金属层形成在硬磁性层上的第三铁磁层，用于切断交换耦合并通过静磁组合耦合到第二铁磁层和硬磁性层。

    Magnetoresistive head, method of fabricating the same and magnetic recording apparatus
    4.
    发明授权
    Magnetoresistive head, method of fabricating the same and magnetic recording apparatus 失效
    磁阻头，制造方法和磁记录装置

    公开(公告)号：US6074535A

    公开(公告)日：2000-06-13

    申请号：US962148

    申请日：1997-10-31

    申请人： Hitoshi Kishi ,  Kazuo Kobayashi ,  Yasuhiro Kitade ,  Mitsuru Otagiri ,  Hideyuki Kikuchi

    发明人： Hitoshi Kishi ,  Kazuo Kobayashi ,  Yasuhiro Kitade ,  Mitsuru Otagiri ,  Hideyuki Kikuchi

    IPC分类号： G11B5/39 ,  G11B5/012 ,  G11B5/31 ,  H01F10/08 ,  H01F10/32 ,  H01F41/18 ,  H01L43/08 ,  H01L43/12 ,  C23C14/34

    CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/3903 ,  G11B5/3967 ,  H01F10/325 ,  G11B2005/3996 ,  G11B5/012 ,  G11B5/3163

    摘要： The present invention relates to a method of fabricating a magnetoresistive head formed by laminating a magnetic layer and a nonmagnetic metal layer including a silver film and used for converting change in magnetic field into change of resistivity of the device. A method of fabricating a magnetoresistive head upon laminating on a substrate a plurality of magnetic layers arranged to put nonmagnetic metal layer therebetween and a bias magnetic layer formed adjacent to one of the magnetic layers to give a magnetization of the specified direction to the magnetic layer, comprising the steps of setting film thicknesses of the nonmagnetic metal layers to be formed, and forming the nonmagnetic metal layers under a condition where temperature of the substrate is held within a temperature range less than an upper limit of a film forming temperature not to cause pin holes in the nonmagnetic metal layer.

    摘要翻译： 本发明涉及一种通过层叠磁性层和包括银膜的非磁性金属层形成的磁阻磁头的方法，用于将磁场的变化转换为装置的电阻率的变化。 一种制造磁阻磁头的方法，在基板上层叠多个设置成在其间放置非磁性金属层的磁性层，以及与磁性层之一相邻形成的偏磁层，以给予磁性层特定方向的磁化， 包括以下步骤：设置要形成的非磁性金属层的膜厚度;以及在基板的温度保持在低于成膜温度的上限的温度范围内形成非磁性金属层的步骤， 非磁性金属层中的孔。

    Spin-valve magnetic head with the pinned layer having different directions for its magnetization axis and its easy axis
    7.
    发明授权
    Spin-valve magnetic head with the pinned layer having different directions for its magnetization axis and its easy axis 失效
    旋转磁头磁头，其固定层具有不同的方向，用于其磁化轴和易轴

    公开(公告)号：US06355115B1

    公开(公告)日：2002-03-12

    申请号：US09434094

    申请日：1999-11-05

    申请人： Keiichi Nagasaka ,  Yutaka Shimizu ,  Hitoshi Kishi ,  Atsushi Tanaka

    发明人： Keiichi Nagasaka ,  Yutaka Shimizu ,  Hitoshi Kishi ,  Atsushi Tanaka

    IPC分类号： C21D104

    CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/3903 ,  G11B2005/3996 ,  Y10T29/49034

    摘要： A method is disclosed for fabricating a spin-valve magnetic head including a layered body of a first ferromagnetic layer having a first easy axis of magnetization extending in a first direction, a non-magnetic layer formed on the first ferromagnetic layer, a second ferromagnetic layer provided on the non-magnetic layer, and an anti-ferromagnetic layer provided on the second ferromagnetic layer in exchange coupling therewith. The method includes a first thermal annealing process with the steps of annealing the layered body in a first annealing state and applying a magnetic field to the layered body in a second direction different from the first direction, while maintaining the layered body in the first annealing state. The method further includes a second thermal annealing process with the steps of annealing the layered body, after the first thermal annealing process, in a second annealing state and applying a magnetic field in a third direction different from the second direction while maintaining the layered body in the second annealing state.

    摘要翻译： 公开了一种用于制造自旋阀磁头的方法，该自旋阀磁头包括具有沿第一方向延伸的第一容易磁化轴的第一铁磁层的层叠体，形成在第一铁磁层上的非磁性层，第二铁磁层 设置在非磁性层上，以及设置在第二铁磁层上的与反铁磁层交换耦合的反铁磁层。 该方法包括：第一热退火处理，其具有以第一退火状态退火层叠体的步骤，并且在不同于第一方向的第二方向上向层叠体施加磁场，同时将层状体保持在第一退火状态 。 该方法还包括第二热退火处理，其中在第一热退火处理之后退火分层体处于第二退火状态，并且在不同于第二方向的第三方向施加磁场，同时将层状体保持在 第二退火状态。

    Power-supply system involving system interconnection
    9.
    发明授权
    Power-supply system involving system interconnection 失效
    涉及系统互连的供电系统

    公开(公告)号：US5886890A

    公开(公告)日：1999-03-23

    申请号：US881205

    申请日：1997-06-24

    申请人： Takeo Ishida ,  Ryuzo Hagiwara ,  Shinichi Kozuma ,  Hitoshi Kishi

    发明人： Takeo Ishida ,  Ryuzo Hagiwara ,  Shinichi Kozuma ,  Hitoshi Kishi

    IPC分类号： H02J3/38 ,  H02M7/23

    CPC分类号： H02J3/38

    摘要： A power-supply system involving system interconnection includes a plurality of AC modules, each of which includes a solar cell module and an inverter unit which outputs a single-phase alternating current. The AC modules are connected to the single-phase three-wire distribution line such that the number of AC modules connected to the outer conductor R is the same as the number of AC modules connected to the outer conductor T. Each AC module has three junction pole pieces. Adjacent AC modules are connected to each other via a connecting cable connected to the junction pole pieces. Each AC module has a change-over circuit so as to be selectively connected to one of the outer conductors R or T. The power-supply system further includes an independent operation control device for independently operating the AC modules when the connection between the AC modules and the commercial electric power system is cut.

    摘要翻译： 涉及系统互连的电源系统包括多个AC模块，每个AC模块包括太阳能电池模块和输出单相交流电的逆变器单元。 AC模块连接到单相三线配电线，使得连接到外导体R的AC模块的数量与连接到外导体T的AC模块的数量相同。每个AC模块具有三个结 极片 相邻的交流模块通过连接到连接极片的连接电缆相互连接。 每个AC模块具有转换电路，以便选择性地连接到外导体R或T中的一个。电源系统还包括独立的操作控制装置，用于在AC模块之间的连接时独立地操作AC模块 商业电力系统被切断。

    SPIN VALVE MAGNETORESISTIVE SENSOR HAVING CPP STRUCTURE
    10.
    发明申请
    SPIN VALVE MAGNETORESISTIVE SENSOR HAVING CPP STRUCTURE 失效
    具有CPP结构的旋转阀磁传感器

    公开(公告)号：US20060119989A1

    公开(公告)日：2006-06-08

    申请号：US11327676

    申请日：2006-01-06

    申请人： Yoshihiko Seyama ,  Atsushi Tanaka ,  Keiichi Nagasaka ,  Yutaka Shimizu ,  Shin Eguchi ,  Hitoshi Kanai ,  Reiko Kondo ,  Hitoshi Kishi ,  Junya Ikeda

    发明人： Yoshihiko Seyama ,  Atsushi Tanaka ,  Keiichi Nagasaka ,  Yutaka Shimizu ,  Shin Eguchi ,  Hitoshi Kanai ,  Reiko Kondo ,  Hitoshi Kishi ,  Junya Ikeda

    IPC分类号： G11B5/127 ,  G11B5/33

    CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G01R33/093 ,  G11B5/3903 ,  G11B2005/3996 ,  H01F10/3259 ,  H01F10/3268 ,  H01F10/3295

    摘要： Disclosed herein is a spin valve magnetoresistive sensor including a first conductor layer, a free ferromagnetic layer provided on the first conductor layer, a nonmagnetic intermediate layer provided on the free ferromagnetic layer, a pinned ferromagnetic layer provided on the nonmagnetic intermediate layer, an antiferromagnetic layer provided on the pinned ferromagnetic layer, and a second conductor layer provided on the antiferromagnetic layer. At least one of the free ferromagnetic layer and the pinned ferromagnetic layer has a thickness larger than that providing a maximum resistance change rate or resistance change amount in the case of passing a current in an in-plane direction of the at least one layer. That is, the thickness of at least one of the free ferromagnetic layer and the pinned ferromagnetic layer falls in the range of 3 nm to 12 nm.

    摘要翻译： 本文公开了一种自旋阀磁阻传感器，其包括第一导体层，设置在第一导体层上的自由铁磁层，设置在自由铁磁层上的非磁性中间层，设置在非磁性中间层上的钉扎铁磁层，反铁磁层 设置在被钉扎的铁磁层上，以及设置在反铁磁层上的第二导体层。 自由铁磁层和被钉扎的铁磁层中的至少一个具有大于在通过至少一个层的面内方向的电流的情况下提供最大电阻变化率或电阻变化量的厚度的厚度。 也就是说，自由铁磁层和被钉扎铁磁层中的至少一个的厚度落在3nm至12nm的范围内。