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    MAGNETIC HEAD, MAGNETIC RECORDING REPRODUCING APPARATUS AND MAGNETIC HEAD MANUFACTURING METHOD
    2.
    发明申请
    MAGNETIC HEAD, MAGNETIC RECORDING REPRODUCING APPARATUS AND MAGNETIC HEAD MANUFACTURING METHOD 有权
    磁头，磁记录重放装置和磁头制造方法

    公开(公告)号：US20140376130A1

    公开(公告)日：2014-12-25

    申请号：US14152974

    申请日：2014-01-10

    Applicant: KABUSHIKI KAISHA TOSHIBA

    Inventor： Akihiko TAKEO ,  Kazuto KASHIWAGI ,  Kenichiro YAMADA ,  Katsuhiko KOUI ,  Tomomi FUNAYAMA

    IPC: G11B5/31

    CPC classification number: G11B5/3163 ,  G11B5/29 ,  G11B5/3909 ,  G11B5/3912 ,  G11B5/3932 ,  G11B5/3958 ,  G11B5/4886 ,  G11B5/4976

    Abstract: A magnetic head includes a plurality of reproducing elements so that the magnetic head can acquire reproduction signals from a plurality of tracks at the same time. The magnetic head includes a first reproducing element, a first magnetic film formed on a first side wall of the first reproducing element with a first side wall insulating film interposed therebetween, a second magnetic film formed on a second side wall of the first reproducing element with a second side wall insulating film interposed therebetween, a second reproducing element electrically isolated from the first reproducing element and formed on the first magnetic film, a third magnetic film formed on the first magnetic film, and a fourth magnetic film formed on the first reproducing element and electrically isolated from the second reproducing element.

    Abstract translation: 磁头包括多个再现元件，使得磁头可以同时从多个轨迹获取再现信号。 磁头包括第一再现元件，形成在第一再现元件的第一侧壁上的第一磁性膜，其间插入有第一侧壁绝缘膜，形成在第一再现元件的第二侧壁上的第二磁性膜， 介于其间的第二侧壁绝缘膜，与第一再现元件电隔离并形成在第一磁性膜上的第二再现元件，形成在第一磁性膜上的第三磁性膜和形成在第一再现元件上的第四磁性膜 并且与第二再现元件电隔离。

    MAGNETIC RECORDING HEAD, AND DISK DRIVE COMPRISING THE SAME
    3.
    发明申请
    MAGNETIC RECORDING HEAD, AND DISK DRIVE COMPRISING THE SAME 有权
    磁记录头和包含该磁头的磁盘驱动器

    公开(公告)号：US20140002924A1

    公开(公告)日：2014-01-02

    申请号：US13680363

    申请日：2012-11-19

    Applicant: KABUSHIKI KAISHA TOSHIBA

    Inventor： Kenichiro YAMADA ,  Takuya MATSUMOTO ,  Naoyuki NARITA ,  Tomoko TAGUCHI ,  Katsuhiko KOUI ,  Akihiko TAKEO

    IPC: G11B5/17 ,  G11B19/20

    CPC classification number: G11B5/17 ,  G11B5/1278 ,  G11B5/3123 ,  G11B19/2009 ,  G11B2005/0005

    Abstract: According to one embodiment, a magnetic recording head includes a disk-facing surface configured to face a recording layer of a recording medium, a main magnetic pole includes a distal end located on the disk-facing surface and configured to apply a recording magnetic field to the recording layer of the recording medium, a leading shield on a leading side of the main magnetic pole, opposed to the distal end of the main magnetic pole across a gap, a high-frequency oscillator between the leading shield and the distal end of the main magnetic pole, and a recording coil configured to excite the main magnetic pole with a magnetic field.

    Abstract translation: 根据一个实施例，磁记录头包括被配置为面对记录介质的记录层的面向盘的表面，主磁极包括位于面向盘的表面上的远端，并被配置为将记录磁场施加到 记录介质的记录层，主磁极的前导侧的前屏蔽，与主磁极的远端相对的间隙相对，在前屏蔽和前端之间的高频振荡器 主磁极和被配置为用磁场激励主磁极的记录线圈。

    MAGNETIC DISK DEVICE AND WRITE OPERATION METHOD
    4.
    发明申请
    MAGNETIC DISK DEVICE AND WRITE OPERATION METHOD 有权

    公开(公告)号：US20210090605A1

    公开(公告)日：2021-03-25

    申请号：US16806585

    申请日：2020-03-02

    Applicant: KABUSHIKI KAISHA TOSHIBA ,  TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION

    Inventor： Hiroyuki SUZUKI ,  Akihiko TAKEO

    IPC: G11B20/10 ,  G11B5/187

    Abstract: According to one embodiment, a magnetic disk device includes: a disk; a head including a main magnetic pole, a write shield that faces the main magnetic pole in a first direction and is separated from the main magnetic pole by a gap, a first assist element that is disposed in the gap and a second assist element that is disposed in the gap and is positioned relative to the first assist element in a second direction intersecting the first direction; and a controller configured to: cause a first assist energy from the first assist element to be applied to the disk and affect a coercive force of the disk; and cause a second assist energy from the second assist element to be applied to the disk and affect a coercive force of the disk, wherein the first assist energy is different from the second assist energy.

    PATTERN FORMATION METHOD, STAMPER MANUFACTURING METHOD, AND MAGNETIC RECORDING MEDIUM MANUFACTURING METHOD
    7.
    发明申请
    PATTERN FORMATION METHOD, STAMPER MANUFACTURING METHOD, AND MAGNETIC RECORDING MEDIUM MANUFACTURING METHOD 有权
    图案形成方法，冲压件制造方法和磁记录介质制造方法

    公开(公告)号：US20150179205A1

    公开(公告)日：2015-06-25

    申请号：US14206271

    申请日：2014-03-12

    Applicant: KABUSHIKI KAISHA TOSHIBA

    Inventor： Kazutaka TAKIZAWA ,  Takeshi IWASAKI ,  Akihiko TAKEO

    IPC: G11B5/84 ,  G11B5/85 ,  C25D1/10

    CPC classification number: G11B5/8408 ,  C25D1/10 ,  G03F1/00 ,  G03F7/00 ,  G11B5/855 ,  H01L21/263 ,  H01L21/2633 ,  H01L21/3065 ,  H01L21/311 ,  H01L21/31116

    Abstract: According to one embodiment, a pattern formation method includes steps of forming a layer to be processed on a substrate, forming a metal microparticle layer by coating the layer to be processed with a metal microparticle coating solution containing metal microparticles and a solvent, reducing a protective group amount around the metal microparticles by first etching, forming a protective layer by exposing the substrate to a gas containing C and F and adsorbing the gas around the metal microparticles to obtain a projection pattern, and transferring the projection pattern to the layer to be processed by second etching.

    Abstract translation: 根据一个实施例，图案形成方法包括以下步骤：在基板上形成待加工层，通过用含有金属微粒和溶剂的金属微粒涂层溶液涂覆待加工层来形成金属微粒层，减少保护 通过首先蚀刻金属微粒周围的金属组合，通过将基板暴露于含有C和F的气体并吸附金属微粒周围的气体以形成保护层，从而获得突起图案，并将投影图案转印到待处理层 通过第二次蚀刻。

    METHOD OF MANUFACTURING MAGNETORESISTIVE ELEMENT
    8.
    发明申请
    METHOD OF MANUFACTURING MAGNETORESISTIVE ELEMENT 审中-公开
    制造磁性元件的方法

    公开(公告)号：US20140153139A1

    公开(公告)日：2014-06-05

    申请号：US14176989

    申请日：2014-02-10

    Applicant: KABUSHIKI KAISHA TOSHIBA

    Inventor： Akihiko TAKEO ,  Yoshihiko FUJI ,  Hiromi YUASA ,  Michiko HARA ,  Shuichi MURAKAMI ,  Hideaki FUKUZAWA

    IPC: G11B5/39

    CPC classification number: G11B5/3903 ,  B82Y25/00 ,  B82Y40/00 ,  G01R33/093 ,  G01R33/098 ,  G11B5/3163 ,  G11B5/3983 ,  H01F10/3259 ,  H01F10/3272 ,  H01F10/3295 ,  H01F41/303 ,  H01F41/325 ,  H01L43/12 ,  Y10T428/1129

    Abstract: According to one embodiment, a method of manufacturing a magnetoresistive element includes a layered structure and a pair of electrodes, the layered structure including a cap layer, a magnetization pinned layer, a magnetization free layer, a spacer layer and a functional layer provided in the magnetization pinned layer, between the magnetization pinned layer and the spacer layer, between the spacer layer and the magnetization free layer, in the magnetization free layer, or between the magnetization free layer and the cap layer and including an oxide, the method including forming a film including a base material of the functional layer, performing an oxidation treatment on the film using a gas containing oxygen in a form of at least one selected from the group consisting of molecule, ion, plasma and radical, and performing a reduction treatment using a reducing gas on the film after the oxidation treatment.

    Abstract translation: 根据一个实施例，制造磁阻元件的方法包括层状结构和一对电极，所述层叠结构包括盖层，磁化固定层，磁化自由层，间隔层和功能层 在磁化被钉扎层和间隔层之间，在间隔层和磁化自由层之间，在磁化自由层中，或在磁化自由层和覆盖层之间并包括氧化物的磁化钉扎层，该方法包括形成 膜，其包括功能层的基材，使用含有选自分子，离子，等离子体和自由基中的至少一种形式的含氧气体，对膜进行氧化处理，并使用 在氧化处理后还原气膜。

    MAGNETIC DISK DEVICE HAVING FIRST AND SECOND ASSIST ELEMENTS AND WRITE OPERATION METHOD
    9.
    发明申请
    MAGNETIC DISK DEVICE HAVING FIRST AND SECOND ASSIST ELEMENTS AND WRITE OPERATION METHOD 有权

    公开(公告)号：US20210366517A1

    公开(公告)日：2021-11-25

    申请号：US17396411

    申请日：2021-08-06

    Applicant: KABUSHIKI KAISHA TOSHIBA ,  TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION

    Inventor： Hiroyuki SUZUKI ,  Akihiko TAKEO

    IPC: G11B20/10 ,  G11B5/187

    Abstract: According to one embodiment, a magnetic disk device includes: a disk; a head including a main magnetic pole, a write shield that faces the main magnetic pole in a first direction and is separated from the main magnetic pole by a gap, a first assist element that is disposed in the gap and a second assist element that is disposed in the gap and is positioned relative to the first assist element in a second direction intersecting the first direction; and a controller configured to: cause a first assist energy from the first assist element to be applied to the disk and affect a coercive force of the disk; and cause a second assist energy from the second assist element to be applied to the disk and affect a coercive force of the disk, wherein the first assist energy is different from the second assist energy.

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