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    Recording head with high-frequency oscillator and bi-layer main pole height/width arrangement
    1.
    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。

    Perpendicular magnetic recording head and magnetic disk apparatus
    5.
    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。

    Magnetic recording head, head gimbal assembly with the same, and disk drive
    6.
    发明授权
    Magnetic recording head, head gimbal assembly with the same, and disk drive 有权
    磁记录头，头万向架组件与磁盘驱动器相同

    公开(公告)号：US08730616B2

    公开(公告)日：2014-05-20

    申请号：US13585285

    申请日：2012-08-14

    申请人： Kenichiro Yamada ,  Yusuke Tomoda ,  Tomoko Taguchi ,  Katsuhiko Koui

    发明人： Kenichiro Yamada ,  Yusuke Tomoda ,  Tomoko Taguchi ,  Katsuhiko Koui

    IPC分类号： G11B5/127

    CPC分类号： G11B5/1278 ,  G11B5/23 ,  G11B5/3146 ,  G11B5/3163 ,  G11B2005/0024

    摘要： According to one embodiment, a magnetic recording head includes a main pole, a trailing shield opposing the main pole with a write gap therebetween, and a high-frequency oscillator between a distal end portion of the main pole and the trailing shield configured to produce a high-frequency magnetic field. The high-frequency oscillator includes a lower end surface facing the recording medium and an upper end surface substantially parallel to the lower end surface. The width of the lower end surface in a track-width direction is smaller than that of the upper end surface.

    摘要翻译： 根据一个实施例，磁记录头包括主极，与主极相对的后屏蔽件，其间具有写入间隙，以及在主极的远端部分和后屏蔽件之间的高频振荡器，其被配置为产生 高频磁场。 高频振荡器包括面向记录介质的下端表面和基本上平行于下端表面的上端表面。 下端面在轨道宽度方向上的宽度小于上端面的宽度。

    MAGNETIC RECORDING HEAD, HEAD GIMBAL ASSEMBLY WITH THE SAME, AND DISK DRIVE
    7.
    发明申请
    MAGNETIC RECORDING HEAD, HEAD GIMBAL ASSEMBLY WITH THE SAME, AND DISK DRIVE 审中-公开
    磁记录头，头盖组装及磁盘驱动

    公开(公告)号：US20120262821A1

    公开(公告)日：2012-10-18

    申请号：US13296004

    申请日：2011-11-14

    申请人： Tomoko Taguchi ,  Masayuki Takagishi ,  Katsuhiko Koui ,  Kenichiro Yamada ,  Hitoshi Iwasaki

    发明人： Tomoko Taguchi ,  Masayuki Takagishi ,  Katsuhiko Koui ,  Kenichiro Yamada ,  Hitoshi Iwasaki

    IPC分类号： G11B5/23 ,  G11B17/02 ,  G11B5/48

    CPC分类号： G11B5/314 ,  G11B5/235 ,  G11B2005/0024

    摘要： According to one embodiment, a magnetic recording head includes a main pole configured to apply a recording magnetic field perpendicular to a recording medium, a trailing-shield pole opposed to the main pole with a recording gap therebetween, a high-frequency oscillator between the main pole and the trailing-shield pole in the recording gap, configured to produce a high-frequency magnetic field, a magnetic seed layer between the main pole and the high-frequency oscillator and in contact with the main pole, and a highly oriented magnetic layer of a soft magnetic material superposed on the magnetic seed layer between the main pole and the high-frequency oscillator and in contact with the high-frequency oscillator.

    摘要翻译： 根据一个实施例，磁记录头包括被配置为施加垂直于记录介质的记录磁场的主极，与主极相对的后屏蔽极，其间具有记录间隙，在主体之间的高频振荡器 磁极和后屏蔽极在记录间隙中，被配置为产生高频磁场，主极和高频振荡器之间的磁性种子​​层，并与主极接触，并且高取向磁性层 叠置在主极与高频振荡器之间的磁性种子​​层上并与高频振荡器接触的软磁性材料。

    MAGNETIC HEAD AND DISK DRIVE WITH THE SAME
    8.
    发明申请
    MAGNETIC HEAD AND DISK DRIVE WITH THE SAME 审中-公开
    磁头和磁盘驱动器

    公开(公告)号：US20110242701A1

    公开(公告)日：2011-10-06

    申请号：US13016687

    申请日：2011-01-28

    申请人： Masaya Ohtake ,  Tomoko Taguchi ,  Masayuki Takagishi ,  Kenichiro Yamada ,  Katsuhiko Koui

    发明人： Masaya Ohtake ,  Tomoko Taguchi ,  Masayuki Takagishi ,  Kenichiro Yamada ,  Katsuhiko Koui

    IPC分类号： G11B5/23 ,  G11B17/02

    CPC分类号： G11B5/1278 ,  B82Y10/00 ,  G11B5/02 ,  G11B5/314 ,  G11B5/3146 ,  G11B5/746 ,  G11B5/82 ,  G11B2005/0024

    摘要： According to one embodiment, a magnetic head includes a main pole configured to apply a perpendicular recording magnetic field to a recording layer of a recording medium, a return pole opposed to the trailing side of the main pole with a write gap therebetween and configured to reflux magnetic flux from the main pole to form a magnetic circuit in conjunction with the main pole, a coil configured to excite magnetic flux in the magnetic circuit includes the main pole and the return pole, a plurality of high-frequency oscillatory elements individually interposed between the main pole and the return pole, includes a plurality of magnetic films different in magnetic resonance frequency, and configured to individually apply high-frequency magnetic fields to the recording medium, and an electrical circuit configured to energize the high-frequency oscillatory elements.

    摘要翻译： 根据一个实施例，磁头包括：主极，被配置为向记录介质的记录层施加垂直记录磁场;与主极的后侧相对的返回极，其间具有写入间隙，并且被配置为回流 来自主极的磁通量与主极结合形成磁路，构成为激励磁路中的磁通量的线圈包括主极和返回极，多个高频振荡元件分别插入在 主极和返回极包括不同于磁共振频率的多个磁膜，并且被配置为分别向记录介质施加高频磁场，以及电路，其被配置为对高频振荡元件通电。

    Recording head with dual coil/dual shield arrangement and high frequency oscillator
    9.
    发明授权
    Recording head with dual coil/dual shield arrangement and high frequency oscillator 有权
    记录头采用双线圈/双屏蔽排列和高频振荡器

    公开(公告)号：US08810961B2

    公开(公告)日：2014-08-19

    申请号：US13548922

    申请日：2012-07-13

    申请人： Tomoko Taguchi ,  Yusuke Tomoda

    发明人： Tomoko Taguchi ,  Yusuke Tomoda

    IPC分类号： G11B5/17 ,  G11B5/11 ,  G11B5/235 ,  G11B5/31

    CPC分类号： G11B5/3116 ,  G11B5/1278 ,  G11B5/3123 ,  G11B19/247 ,  G11B2005/0024

    摘要： According to one embodiment, a recording head includes a main pole, a trailing shield including a first connecting portion and a second connecting portion, and configured to form together with the main pole a first magnetic core, a leading shield including a first connecting portion connected to the main pole through a magnetic material and an end portion opposing to the end portion of the main pole through a non-magnetic material, and configured to form together with the main pole a second magnetic core, and first and second coils wound around the first and second magnetic cores, and a connection terminal configured to flow a current through the main pole, non-magnetic conductive layer, and trailing shield.

    摘要翻译： 根据一个实施例，记录头包括主极，后屏蔽，包括第一连接部分和第二连接部分，并且被配置为与主极一起形成第一磁芯，所述前屏蔽包括第一连接部分连接 通过非磁性材料通过磁性材料和与主极端部相对的端部连接到主极，并且被配置为与主极一起形成第二磁芯，以及缠绕在主极上的第一和第二线圈 第一和第二磁芯，以及被配置为使电流流经主极，非磁性导电层和后屏蔽的连接端子。

    Magnetic recording head configured to reduce the degradation of recorded signals and disk device including the same
    10.
    发明授权
    Magnetic recording head configured to reduce the degradation of recorded signals and disk device including the same 有权
    磁记录头被配置为减少记录信号的劣化和包括其的盘装置

    公开(公告)号：US08773818B2

    公开(公告)日：2014-07-08

    申请号：US13607048

    申请日：2012-09-07

    申请人： Tomoko Taguchi ,  Takuya Matsumoto

    发明人： Tomoko Taguchi ,  Takuya Matsumoto

    IPC分类号： G11B5/127

    CPC分类号： G11B5/314 ,  G11B5/1278 ,  G11B5/23 ,  G11B5/3146 ,  G11B2005/0024

    摘要： A magnetic recording head includes a main magnetic pole generating a recording magnetic field, a trailing shield, a recording coil generating a magnetic field and a high frequency oscillator. The trailing shield includes a magnetic region including a gap side end surface facing a write gap and a nonmagnetic film arranged in the vicinity of the write gap in the trailing shield, and within a plane including track width direction centers of the main magnetic pole and the high frequency oscillator and being perpendicular to a recording layer of a recording medium, a film thickness of the nonmagnetic film along a track moving direction is substantially equivalent to or more than a half of a distance from the gap side end surface to the nonmagnetic film.

    摘要翻译： 磁记录头包括产生记录磁场的主磁极，尾屏蔽，产生磁场的记录线圈和高频振荡器。 尾部屏蔽包括包括面向写入间隙的间隙侧端面和布置在后屏蔽中的写入间隙附近的非磁性膜的磁性区域，并且在包括主磁极的轨道宽度方向中心和 高频振荡器并且垂直于记录介质的记录层，非磁性膜沿轨道移动方向的膜厚基本上等于或大于从间隙侧端面到非磁性膜的距离的一半。