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21 条记录 (耗时 0.018 秒)

    Magnetoresistive head with improved in-stack longitudinal biasing layers
    1.
    发明授权
    Magnetoresistive head with improved in-stack longitudinal biasing layers 失效
    具有改进的堆叠纵向偏置层的磁阻头和制造方法

    公开(公告)号：US07535683B2

    公开(公告)日：2009-05-19

    申请号：US10977324

    申请日：2004-10-29

    申请人： Kenichi Meguro ,  Kouichi Nishioka ,  Masahiko Hatatani ,  Chiseki Haginoya

    发明人： Kenichi Meguro ,  Kouichi Nishioka ,  Masahiko Hatatani ,  Chiseki Haginoya

    IPC分类号： G11B5/39 ,  G11B5/127

    CPC分类号： G11B5/3912 ,  G11B5/3932

    摘要： A magnetoresistive head and a fabricating method thereof accomplishing high sensitivity and low noise are provided even if track width narrowing makes progress. In one embodiment, a pinned layer includes a laminate which includes at least two magnetic layers and where adjacent magnetic layers are coupled antiferromagnetically to each other, and a mechanism to apply a longitudinal biasing field to a free layer is made to function by laminating a nonmagnetic separate layer/longitudinal biasing layer/antiferromagnetic layer connecting the free layer and opposite a nonmagnetic conductive layer (or nonmagnetic tunneling barrier layer). Controlling a magnetization direction of the longitudinal biasing layer which bears application of a longitudinal biasing field to the pinned layer and free layer is achieved by annealing carried out while applying a magnetic field in a track width direction and applying a magnetic field at room temperature.

    摘要翻译： 即使进行轨道宽度变窄，也提供了实现高灵敏度和低噪声的磁阻头及其制造方法。 在一个实施例中，钉扎层包括层压体，其包括至少两个磁性层，并且其中相邻磁性层彼此反铁磁耦合，并且通过层叠非磁性的作用将纵向偏置场施加到自由层 连接自由层并且与非磁性导电层（或非磁性隧道势垒层）相对的单独层/纵向偏置层/反铁磁性层。 通过在轨道宽度方向施加磁场并在室温下施加磁场的同时进行退火来控制施加纵向偏置场的纵向偏置层的磁化方向到被钉扎层和自由层。

    Magnetoresistive head with improved in-stack longitudinal biasing layers and fabricating method
    2.
    发明申请
    Magnetoresistive head with improved in-stack longitudinal biasing layers and fabricating method 失效
    具有改进的堆叠纵向偏置层的磁阻头和制造方法

    公开(公告)号：US20050162786A1

    公开(公告)日：2005-07-28

    申请号：US10977324

    申请日：2004-10-29

    申请人： Kenichi Meguro ,  Kouichi Nishioka ,  Masahiko Hatatani ,  Chiseki Haginoya

    发明人： Kenichi Meguro ,  Kouichi Nishioka ,  Masahiko Hatatani ,  Chiseki Haginoya

    IPC分类号： G11B5/127 ,  G11B5/33 ,  G11B5/39 ,  H01F10/32 ,  H01L43/08

    CPC分类号： G11B5/3912 ,  G11B5/3932

    摘要： A magnetoresistive head and a fabricating method thereof accomplishing high sensitivity and low noise are provided even if track width narrowing makes progress. In one embodiment, a pinned layer includes a laminate which includes at least two magnetic layers and where adjacent magnetic layers are coupled antiferromagnetically to each other, and a mechanism to apply a longitudinal biasing field to a free layer is made to function by laminating a nonmagnetic separate layer/longitudinal biasing layer/antiferromagnetic layer connecting the free layer and opposite a nonmagnetic conductive layer (or nonmagnetic tunneling barrier layer). Controlling a magnetization direction of the longitudinal biasing layer which bears application of a longitudinal biasing field to the pinned layer and free layer is achieved by annealing carried out while applying a magnetic field in a track width direction and applying a magnetic field at room temperature.

    摘要翻译： 即使进行轨道宽度变窄，也提供了实现高灵敏度和低噪声的磁阻头及其制造方法。 在一个实施例中，钉扎层包括层压体，其包括至少两个磁性层，并且其中相邻磁性层彼此反铁磁耦合，并且通过层叠非磁性的作用将纵向偏置场施加到自由层 连接自由层并且与非磁性导电层（或非磁性隧道势垒层）相对的单独层/纵向偏置层/反铁磁性层。 通过在轨道宽度方向施加磁场并在室温下施加磁场的同时进行退火来控制施加纵向偏置场的纵向偏置层的磁化方向到被钉扎层和自由层。

    Magnetic recording media and method of forming them
    8.
    发明授权
    Magnetic recording media and method of forming them 有权
    磁记录介质及其形成方法

    公开(公告)号：US07097924B2

    公开(公告)日：2006-08-29

    申请号：US10747097

    申请日：2003-12-30

    申请人： Chiseki Haginoya ,  Kaori Suzuki ,  Hisashi Kimura ,  Masaaki Futamoto ,  Hideo Matsuyama

    发明人： Chiseki Haginoya ,  Kaori Suzuki ,  Hisashi Kimura ,  Masaaki Futamoto ,  Hideo Matsuyama

    IPC分类号： G11B5/65 ,  G11B5/17 ,  G11B7/20

    CPC分类号： G11B5/82 ,  G11B5/667 ,  G11B5/8404 ,  G11B5/855

    摘要： The present invention is directed to-carrying out a high density magnetic recording to a material having a large coercive force by perpendicular magnetic recording head.By giving a patterning onto a soft magnetic under layer of a perpendicular two-layer recording media in sync with a period of a recording bit, a magnetic field from a write head can be allowed to converge to a soft magnetic column. Therefore, a magnetization reversal of the magnetic recording media material having a large anisotropic constant becomes possible, and then a high density magnetic recording can be achieved.

    摘要翻译： 本发明旨在通过垂直磁记录头对具有大矫顽力的材料进行高密度磁记录。 通过以与记录位的周期同步地将图案化到垂直的两层记录介质的软磁下层上，可以允许来自写入头的磁场会聚到软磁柱。 因此，具有大的各向异性常数的磁记录介质材料的磁化反转成为可能，然后可实现高密度磁记录。

    Magnetic recording medium and method for production thereof
    9.
    发明授权
    Magnetic recording medium and method for production thereof 有权
    磁记录介质及其制造方法

    公开(公告)号：US07998605B2

    公开(公告)日：2011-08-16

    申请号：US11522204

    申请日：2006-09-15

    申请人： Chiseki Haginoya ,  Takashi Ando ,  Masahiko Ogino

    发明人： Chiseki Haginoya ,  Takashi Ando ,  Masahiko Ogino

    IPC分类号： G11B5/66

    CPC分类号： G11B5/7325 ,  G11B5/8404 ,  G11B5/855

    摘要： Embodiments of the invention provide ways to manufacture an inexpensive high-density magnetic recording medium. A high-density magnetic recording medium is composed of a flat substrate, a nonmagnetic intermediary body having a periodic recessed-relieved structure, and a magnetic film formed on the intermediary body.

    摘要翻译： 本发明的实施例提供了制造便宜的高密度磁记录介质的方法。 高密度磁记录介质由平面基板，具有周期性凹陷释放结构的非磁性中间体和形成在中间体上的磁性膜构成。

    MAGNETIC HEAD AND MAGNETIC DISK SYSTEM HAVING THE SAME
    10.
    发明申请
    MAGNETIC HEAD AND MAGNETIC DISK SYSTEM HAVING THE SAME 失效
    具有相同的磁头和磁盘系统

    公开(公告)号：US20080212239A1

    公开(公告)日：2008-09-04

    申请号：US12014128

    申请日：2008-01-15

    申请人： Yoshiaki Kawato ,  Chiseki Haginoya ,  Kaori Suzuki

    发明人： Yoshiaki Kawato ,  Chiseki Haginoya ,  Kaori Suzuki

    IPC分类号： G11B5/33

    CPC分类号： G11B5/315 ,  G11B5/11 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/313 ,  G11B5/3912 ,  G11B5/3967

    摘要： A read sensor is disposed near a main pole, thereby reducing the distance between the read sensor and a write sensor. In this case, however, a magnetic field generated from the main pole affects magnetization of a free layer and a pinned layer of a magnetoresistive film, thereby causing the magnetizing directions to rotate, a magnetic barrier to be generated, and the read property to be degraded. According to the present invention, a main pole and a yoke configure a magnetic circuit together with a sub-pole and a soft magnetic under layer of the magnetic disk and an exciting coil magnetizes the magnetic circuit, thereby a recording magnetic field is applied to a recording layer to record information bits on the layer. And in order to sharpen the magnetic field distribution generated by the main pole, a trailing shield made of a ferromagnetic material is disposed at the trailing side of the main pole adjacently. And a read sensor (magnetoresistive element) for reading bit information is provided between the trailing shield and the main pole.

    摘要翻译： 读取传感器设置在主极附近，从而减小读取传感器和写入传感器之间的距离。 然而，在这种情况下，从主极产生的磁场影响自由层和磁阻膜的固定层的磁化，从而使磁化方向旋转，产生磁阻，读取性能为 退化 根据本发明，主极和磁轭与磁盘的子极和软磁层一起构成磁路，励磁线圈对磁路进行磁化，由此将记录磁场施加到 记录层在层上记录信息位。 为了锐化由主极产生的磁场分布，由铁磁材料制成的后挡板相邻地设置在主极的后侧。 并且在后屏蔽和主极之间提供用于读取位信息的读取传感器（磁阻元件）。