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    Perpendicular magnetic recording head and magnetic disk apparatus
    4.
    发明申请
    Perpendicular magnetic recording head and magnetic disk apparatus 有权
    垂直磁记录头和磁盘设备

    公开(公告)号：US20070268626A1

    公开(公告)日：2007-11-22

    申请号：US11797447

    申请日：2007-05-03

    申请人： Tomoko Taguchi ,  Tomomi Funayama ,  Yuka Aoyagi ,  Katsuhiko Koui

    发明人： Tomoko Taguchi ,  Tomomi Funayama ,  Yuka Aoyagi ,  Katsuhiko Koui

    IPC分类号： G11B5/147

    CPC分类号： G11B5/3143 ,  G11B5/11 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/315

    摘要： According to one embodiment, a perpendicular magnetic recording head includes a main pole which generates a recording magnetic field, a return pole which forms a closed magnetic circuit for the recording magnetic field, and a side shield magnetically spaced from the main pole in a cross-track direction in which a point on a trailing edge of the side shield which is closest to the main pole is positioned on a leading side of a trailing edge of the main pole.

    摘要翻译： 根据一个实施例，垂直磁记录头包括产生记录磁场的主极，形成用于记录磁场的闭合磁路的返回极，以及在横截面中与主极磁隔离的侧屏蔽， 轨道方向，其中最靠近主极的侧护板的后缘上的点位于主杆的后缘的前侧。

    Recording head with high-frequency oscillator and bi-layer main pole height/width arrangement
    5.
    发明授权
    Recording head with high-frequency oscillator and bi-layer main pole height/width arrangement 有权
    录音头采用高频振荡器和双层主极高/宽布置

    公开(公告)号：US08705204B2

    公开(公告)日：2014-04-22

    申请号：US13591012

    申请日：2012-08-21

    申请人： Tomoko Taguchi ,  Kenichiro Yamada ,  Katsuhiko Koui ,  Tomomi Funayama ,  Norihito Fujita

    发明人： Tomoko Taguchi ,  Kenichiro Yamada ,  Katsuhiko Koui ,  Tomomi Funayama ,  Norihito Fujita

    IPC分类号： G11B5/31

    CPC分类号： G11B5/3116 ,  G11B2005/0002

    摘要： According to one embodiment, a main pole of a recording head includes a first magnetic pole layer and a second magnetic pole layer laminated on the trailing side of the first magnetic pole layer. The first magnetic pole layer includes a tapered portion and a first tip portion. The second magnetic pole layer includes a tapered portion and a second tip portion. A width in a track direction of the second tip portion is smaller than that of the first tip portion. The high-frequency oscillator is between the second tip portion and the trailing shield and includes a width in the track direction substantially equal to the width in the track direction of the second tip portion, and a height of the first tip portion is taller than that of the second tip portion.

    摘要翻译： 根据一个实施例，记录头的主极包括层叠在第一磁极层的后侧上的第一磁极层和第二磁极层。 第一磁极层包括锥形部分和第一末端部分。 第二磁极层包括锥形部分和第二尖端部分。 第二前端部的轨道方向的宽度小于第一前端部的宽度。 所述高频振荡器位于所述第二前端部与所述后屏蔽之间，并且包括所述轨道方向上的宽度大致等于所述第二前端部的轨道方向的宽度，所述第一前端部的高度高于所述第二前端部的高度。 的第二尖端部分。

    Current-perpendicular-to-plane magnetic head and magnetic disk apparatus using the same
    7.
    发明申请
    Current-perpendicular-to-plane magnetic head and magnetic disk apparatus using the same 审中-公开
    电流 - 垂直于平面的磁头和使用其的磁盘装置

    公开(公告)号：US20070279810A1

    公开(公告)日：2007-12-06

    申请号：US11806360

    申请日：2007-05-31

    申请人： Tomomi Funayama ,  Katsuhiko Koui

    发明人： Tomomi Funayama ,  Katsuhiko Koui

    IPC分类号： G11B5/127

    CPC分类号： G11B5/3932 ,  B82Y10/00 ,  B82Y25/00 ,  G11B2005/3996

    摘要： According to one embodiment, a current-perpendicular-to-plane magnetic head includes a magnetoresistive film including a pinned layer, an intermediate layer and a free layer, a pair of magnetic shields serving as electrodes provided over and under the magnetoresistive film, and a pair of biasing films provided on both sides of the magnetoresistive film through an insulating film, in which an angle θ between a magnetization direction of the pinned layer and a magnetization direction of the free layer is set to 5°≦θ

    摘要翻译： 根据一个实施例，电流 - 垂直于平面的磁头包括包括被钉扎层，中间层和自由层的磁阻膜，用作设置在磁阻膜上和下的电极的一对磁屏蔽，以及 通过绝缘膜在磁阻膜的两侧设置一对偏置膜，其中被钉扎层的磁化方向与自由层的磁化方向之间的角度θ被设定为5°<θ<90°， 或者在零外部场处将偏置点设置为5％<= BP <50％。

    Magnetic head assembly and magnetic recording apparatus
    9.
    发明申请
    Magnetic head assembly and magnetic recording apparatus 审中-公开
    磁头组件和磁记录装置

    公开(公告)号：US20100007992A1

    公开(公告)日：2010-01-14

    申请号：US12453855

    申请日：2009-05-26

    申请人： Kenichiro Yamada ,  Hitoshi Iwasaki ,  Masayuki Takagishi ,  Tomomi Funayama ,  Masahiro Takashita ,  Mariko Shimizu ,  Soichi Oikawa ,  Katsuhiko Koui

    发明人： Kenichiro Yamada ,  Hitoshi Iwasaki ,  Masayuki Takagishi ,  Tomomi Funayama ,  Masahiro Takashita ,  Mariko Shimizu ,  Soichi Oikawa ,  Katsuhiko Koui

    IPC分类号： G11B5/48

    CPC分类号： G11B5/314 ,  G11B5/02 ,  G11B5/1278 ,  G11B5/3146 ,  G11B2005/0005 ,  G11B2005/0024

    摘要： A magnetic head assembly includes a magnetic recording head, a head slider, a suspension and an actuator arm. The magnetic recording head includes: a main magnetic pole; an adjustment magnetic pole provided together with the main magnetic pole; a spin torque oscillator; a main magnetic pole coil being wound around the main magnetic pole; and an adjustment magnetic pole coil being wound around the adjustment magnetic pole. At least part of the spin torque oscillator is provided between the main magnetic pole and the adjustment magnetic pole. A way of winding of the adjustment magnetic pole coil is different from a way of winding of the main magnetic pole coil. The magnetic recording head is mounted on the head slider. The head slider is mounted on one end of the suspension. The actuator arm is connected to the other end of the suspension.

    摘要翻译： 磁头组件包括磁记录头，磁头滑块，悬架和致动臂。 磁记录头包括：主磁极; 与主磁极一起设置的调节磁极; 自旋转矩振荡器; 主磁极线圈缠绕在主磁极上; 并且调节磁极线圈缠绕在调节磁极上。 旋转扭矩振荡器的至少一部分设置在主磁极和调节磁极之间。 调整用磁极线圈的卷绕方式与主磁极线圈的卷绕方式不同。 磁记录头安装在磁头滑块上。 磁头滑块安装在悬架的一端。 执行器臂连接到悬架的另一端。