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    MAGNETORESISTIVE HEAD
    4.
    发明授权
    MAGNETORESISTIVE HEAD 有权
    磁阻磁头

    公开(公告)号：EP1220205B1

    公开(公告)日：2007-01-10

    申请号：EP00977965.3

    申请日：2000-11-27

    申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

    发明人： HONMA, Yoshiyasu ,  HASEGAWA, Hiroyuki

    IPC分类号： G11B5/127 ,  G11B5/187 ,  G11B5/39

    CPC分类号： G11B5/3903 ,  G11B5/10 ,  G11B5/3106 ,  G11B5/40 ,  G11B5/53 ,  Y10T29/4903

    摘要： An MR head has a sliding surface to be in contact with a magnetic recording medium and includes a substrate, on which an MR element is formed, and a reinforcement, which are exposed at the sliding surface. To improve the reliability of the MR head, the substrate and the reinforcement are joined with inorganic film, such as multilayer film including a metal layer. Alternatively, the substrate and the reinforcement are joined with adhesive film that is not exposed at the sliding surface.

    摘要翻译： MR磁头具有与磁记录介质接触的滑动表面，并且包括其上形成有MR元件的基板以及暴露在滑动表面处的加强件。 为了提高MR头的可靠性，将基板和增强材料与无机膜（例如包括金属层的多层膜）接合。 或者，基材和增强材料与未在滑动表面处暴露的粘合剂膜结合。

    Method and apparatus for perpendicular magnetic recording
    5.
    发明公开
    Method and apparatus for perpendicular magnetic recording 审中-公开
    Methode undGerätfürsenkrechte Magnetaufzeichnung

    公开(公告)号：EP1148473A2

    公开(公告)日：2001-10-24

    申请号：EP01108869.7

    申请日：2001-04-09

    申请人： SAMSUNG ELECTRONICS CO., LTD.

    发明人： Kim, Yong-su ,  Im, Young-hun

    IPC分类号： G11B5/127 ,  G11B5/187 ,  G11B5/012

    CPC分类号： G11B5/02 ,  G11B5/012 ,  G11B5/09 ,  G11B5/1278 ,  G11B5/1871 ,  G11B5/3116 ,  G11B5/313 ,  G11B5/596 ,  G11B2005/0029

    摘要： The present invention comprises a method and apparatus for magnetizing the surface of a disk (502). In particular, the apparatus comprises a write head (800) which writes to a disk surface using a perpendicular recording process. The write head includes a leading pole (830) and a trailing pole, where the trailing pole (820) has a recessed portion (840) along its trailing edge. This recessed portion leads to an improved magnetic field gradient across the write head, thereby enabling a higher bit density during the write process.

    摘要翻译： 本发明包括用于磁化盘表面的方法和装置（502）。 特别地，该装置包括使用垂直记录处理向磁盘表面写入的写入头（800）。 写入头包括引导极（830）和后极，其中后极（820）沿其后缘具有凹部（840）。 该凹陷部分导致写入头之间的磁场梯度改善，从而在写入过程期间能够实现更高的位密度。

    Magnetic head and magnetic recording and reproducing system
    7.
    发明公开
    Magnetic head and magnetic recording and reproducing system 审中-公开
    Magnetischer Kopf和磁石Aufzeichnungs-和Wiedergabesystem

    公开(公告)号：EP1134729A2

    公开(公告)日：2001-09-19

    申请号：EP01302288.4

    申请日：2001-03-13

    申请人： KABUSHIKI KAISHA TOSHIBA

    发明人： Funayama, Tomoni ,  Yoshikawa, Masatoshi ,  Koizumi, Takashi ,  Hori, Akio ,  Osawa, Yuichi

    IPC分类号： G11B5/187 ,  G11B5/193 ,  G11B5/127 ,  G11B5/133

    CPC分类号： B82Y10/00 ,  G11B5/3903 ,  G11B5/3967

    摘要： There are provided a magnetic head for vertical magnetic recording capable of suppressing noises due to a magnetically soft layer and improving the lowering of efficiency, and a magnetic recording and/or reproducing system using the same. The magnetic head includes: a recording head (8) comprising a first main pole (1) and a first return yoke (2), the first main pole having a first medium facing portion, the first return yoke having a second medium facing portion, the first and second medium facing portions are disposed with first magnetic gap therebetween, and a reproducing head (9) comprising a second main pole (4) and a second return yoke (5), the second main pole having a third medium facing portion, the second return yoke having a fourth medium facing portion, the third and fourth medium facing portions are disposed with second magnetic gap therebetween, first angle θ1 between first and second straight lines being smaller than second angle θ2 between the first straight line and third straight line, the first straight line (L1) connecting centers of medium facing surfaces of the first medium facing portion and the second medium facing portion, the second straight line (L2) connecting opposing corners of medium facing surfaces of the first medium facing portion and the second medium facing portion, and the third straight line (L3) connecting centers of medium facing surfaces of the third medium facing portion and the fourth medium facing portion. With this construction, the direction of magnetic fluxes flowing through medium during a recording operation is not coincident with that during a reproducing operation, so that it is possible to prevent the generation of Barkhausen noises, which are generated when both directions are coincident with each other, and the lowering of reproducing efficiency.

    摘要翻译： 提供了一种用于垂直磁记录的磁头，其能够抑制由软磁层引起的噪声并提高效率的降低，以及使用该磁头的磁记录和/或再现系统。 磁头包括：包括第一主极（1）和第一返回轭（2）的记录头（8），第一主极具有第一介质面对部分，第一返回轭具有第二介质面对部分， 第一和第二介质面对部分之间设置有第一磁隙，以及包括第二主极（4）和第二返回轭（5）的再现头（9），第二主极具有第三介质面对部分， 所述第二回转轭具有第四介质面对部分，所述第三和第四介质面对部分之间设置有第二磁隙，第一角度和角度;第一和第二直线之间的1小于第二角度和角度;在第一直线之间 和第三直线，连接第一介质对向部分和第二介质面向部分的介质相对表面的中心的第一直线（L1），连接相对角部的第二直线（L2） 所述第一介质面对部分和所述第二介质面对部分的介质面向表面以及连接所述第三介质面向部分和所述第四介质面向部分的介质相对表面的中心的所述第三直线（L3）。 利用这种结构，在记录操作期间流过介质的磁通量的方向与再现操作期间的磁通量的方向不一致，使得可以防止当两个方向彼此一致时产生的巴克豪森噪声 ，再现效率降低。