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89 条记录 (耗时 0.037 秒)

    Magneto-resistance effect element and reproducing head
    37.
    发明授权
    Magneto-resistance effect element and reproducing head 有权
    磁阻效应元件和再现头

    公开(公告)号：US07440239B2

    公开(公告)日：2008-10-21

    申请号：US10671586

    申请日：2003-09-29

    申请人： Yuzo Kamiguchi ,  Masayuki Takagishi ,  Yuichi Ohsawa

    发明人： Yuzo Kamiguchi ,  Masayuki Takagishi ,  Yuichi Ohsawa

    IPC分类号： G11B5/127

    CPC分类号： G11B5/3903 ,  G01R33/09 ,  G11B5/39 ,  G11B2005/0002 ,  H01L43/08

    摘要： It is possible to obtain sensitivity which can achieve an excellent error rate with a high recording density. There are provided a magnetization free layer which has two opposed main surfaces, one of which is set to be generally parallel to an air bearing surface; an intermediate layer which is formed on an opposite side face of the magnetization free layer from a medium to come in contact with the magnetization free layer; and a pair of magnetization pinned layers which are formed on an opposite side face of the intermediate layer from the magnetization free layer to come in contact with the intermediate layer and extend outwardly. A sense current flows from one magnetization pinned layer to the other magnetization pinned layer through the magnetization free layer.

    摘要翻译： 可以获得可以以高记录密度实现出色错误率的灵敏度。 提供了一个磁化自由层，它具有两个相对的主表面，其中一个主表面大致平行于空气轴承表面; 在与磁化自由层接触的介质上形成在磁化自由层的相对侧面上的中间层; 以及一对磁化固定层，其形成在中间层的与磁化自由层相对的侧面上以与中间层接触并向外延伸。 感测电流通过无磁化层从一个磁化固定层流向另一个磁化固定层。

    Magnetoresistance effect head with conductor film pair and magnetic field proving film pair disposed between substrate and magnetoresistance effect film
    39.
    发明授权
    Magnetoresistance effect head with conductor film pair and magnetic field proving film pair disposed between substrate and magnetoresistance effect film 失效
    具有导体膜对的磁阻效应头和设置在衬底和磁阻效应膜之间的磁场证明膜对

    公开(公告)号：US5896251A

    公开(公告)日：1999-04-20

    申请号：US577075

    申请日：1995-12-22

    申请人： Yuichi Ohsawa ,  Hiroaki Yoda ,  Reiko Kondoh

    发明人： Yuichi Ohsawa ,  Hiroaki Yoda ,  Reiko Kondoh

    IPC分类号： G11B5/31 ,  G11B5/39

    CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/3903 ,  G11B5/3967 ,  G11B2005/3996 ,  G11B5/3116 ,  G11B5/313 ,  G11B5/3163 ,  G11B5/3932

    摘要： A magnetoresistance effect head comprises a magnetoresistance effect element portion including a magnetoresistance effect film having a magnetic field response portion, a magnetic field providing film for providing the magnetoresistance effect film with a bias magnetic field, and a conductor film for supplying a current to the magnetoresistance effect film, wherein the magnetoresistance effect element portion has a laminate structure portion being composed of at least the conductor film, the magnetic field providing film, and the magnetoresistance effect film layered in this order at other than the magnetic field response portion. The magnetoresistance effect head is obtained by patterning a laminate film composed of a conductor film and a magnetic field providing film corresponding to a lead shape, forming an MR film, and patterning the MR film corresponding to a lead shape and the shape of a magnetic field response portion. Alternatively, a magnetic field providing film and a conductor film are layered in the order in a passive region other than the magnetic field response portion, forming a laminate film such that the magnetic field providing film is exposed at surface of the edge portion on the magnetic field response portion side. The MR film is formed on almost only the magnetic field response portion so that the MR film overlaps with the exposed portion of the magnetic field providing film.

    摘要翻译： 磁阻效应头包括具有磁场响应部分的磁阻效应膜的磁阻效应元件部分，用于提供具有偏磁场的磁阻效应膜的磁场提供膜，以及用于向磁阻提供电流的导体膜 其中所述磁阻效应元件部分具有至少由所述导体膜，所述磁场提供膜和所述磁阻效应膜构成的层叠结构部分，所述层叠结构部分按所述顺序层叠在所述磁场响应部以外。 磁阻效应头是通过对由导体膜构成的叠层膜和与引线形状相对应的磁场提供膜构成的MR膜进行构图，并且对与引线形状对应的MR膜和磁场的形状 响应部分。 或者，磁场提供膜和导体膜在除磁场响应部以外的无源区域中依次层叠，形成层叠膜，使得磁场提供膜在磁性边缘部分的表面露出 场响应部分侧。 MR膜几乎仅形成在磁场响应部分上，使得MR膜与磁场提供膜的暴露部分重叠。

    Yoke-type head with magneto-resistance effect film recessed from medium facing surface and extending across magnetic gap
    40.
    发明授权
    Yoke-type head with magneto-resistance effect film recessed from medium facing surface and extending across magnetic gap 失效
    具有磁阻效应膜的轭型磁头，从介质面向表面凹陷并延伸穿过磁隙

    公开(公告)号：US06369992B1

    公开(公告)日：2002-04-09

    申请号：US08909687

    申请日：1997-08-12

    申请人： Hiroaki Yoda ,  Atsuhito Sawabe ,  Hitoshi Iwasaki ,  Yuichi Ohsawa ,  Masashi Sahashi ,  Tadahiko Kobayashi

    发明人： Hiroaki Yoda ,  Atsuhito Sawabe ,  Hitoshi Iwasaki ,  Yuichi Ohsawa ,  Masashi Sahashi ,  Tadahiko Kobayashi

    IPC分类号： G11B539

    CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/3903 ,  G11B5/3977 ,  G11B2005/3996

    摘要： A magneto-resistance effect head records and reproduces recorded magnetic material. The magneto-resistance effect head has a magneto-resistance effect film connected to a pair of leads. Additionally, a magnetic yoke, with a first and second magnetic yoke member, directs a signal magnetic field from a recording medium to the magneto-resistance effect film. The magneto-resistance effect head is constructed such that the first and second magnetic yoke members have surfaces that face the recording medium. The surfaces of the first and second magnetic yoke members have a magnetic gap between them. Additionally, the magneto-resistance effect film is recessed from the medium facing surfaces by a predetermined distance. Moreover, the first and second magnetic yoke members are aligned almost in parallel with the magnetic flux flow from the recording medium to the first magnetic yoke member, the magneto-resistance effect film, and the second magnetic yoke member.

    摘要翻译： 磁阻效应头记录和再现记录的磁性材料。 磁阻效应头具有连接到一对引线的磁阻效应膜。 此外，具有第一和第二磁轭构件的磁轭将来自记录介质的信号磁场引导到磁阻效应膜。 磁阻效应头被构造成使得第一和第二磁轭构件具有面向记录介质的表面。 第一和第二磁轭构件的表面之间具有磁隙。 此外，磁阻效应膜从面向介质的表面凹陷预定距离。 此外，第一和第二磁轭构件几乎与从记录介质到第一磁轭构件，磁阻效应膜和第二磁轭构件的磁通流平行排列。