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    Magnetic recording medium and hard disk drive using the same, and manufacturing method thereof
    1.
    发明申请
    Magnetic recording medium and hard disk drive using the same, and manufacturing method thereof 审中-公开
    磁记录介质和使用其的硬盘驱动器及其制造方法

    公开(公告)号：US20060153976A1

    公开(公告)日：2006-07-13

    申请号：US11374158

    申请日：2006-03-14

    申请人： Kenchi Ito ,  Susumu Soeya ,  Yuko Tsuchiya

    发明人： Kenchi Ito ,  Susumu Soeya ,  Yuko Tsuchiya

    IPC分类号： B05D5/12

    CPC分类号： H01F1/0063 ,  B82Y25/00 ,  G11B5/712 ,  G11B5/84 ,  H01F1/0054 ,  H01F10/007 ,  H01F10/123 ,  H01F41/0273 ,  H01F41/22

    摘要： A magnetic recording medium, a hard disk using the same, and a manufacturing method thereof are provided. In one example, the magnetic nano-particle medium is formed by depositing a magnetic nano-particle colloid on a substrate, wherein the axes of easy magnetization of respective crystalline particles are aligned with high accuracy. A layer of L10 alloy nano-particles which will exhibit magnetic properties through an order-disorder transition, and arranged at a substantially uniform spacing on a substrate, and a carbon-containing covering film for surrounding these nano-particles and making the spacing substantially uniform are provided. To the L10 alloy of the nano-particles, at least one non-magnetic element is added, or a covered layer comprising at least one non-magnetic layer is formed therearound. This makes it possible to implement a magnetic recording medium wherein the average diameter of nano-particles is small, and the nano-particle diameter dispersion is small, and the axes of magnetic anisotropy are aligned.

    摘要翻译： 提供磁记录介质，使用该记录介质的硬盘及其制造方法。 在一个实例中，磁性纳米颗粒介质通过在基底上沉积磁性纳米颗粒胶体形成，其中各个结晶颗粒的易磁化轴线以高精度对准。 一层L10合金纳米颗粒，其将通过有序 - 无序转变呈现磁性，并且在基底上以基本上均匀的间隔布置，并且用于包围这些纳米颗粒的含碳覆盖膜并使间距基本均匀 被提供。 对于纳米颗粒的L10合金，添加至少一种非磁性元件，或者在其周围形成包含至少一个非磁性层的被覆层。 这使得可以实现纳米颗粒的平均直径小，纳米粒径分散小，磁各向异性轴对准的磁记录介质。

    Magneto-resistive devices
    2.
    发明授权
    Magneto-resistive devices 失效
    磁阻器件

    公开(公告)号：US06917088B2

    公开(公告)日：2005-07-12

    申请号：US10331664

    申请日：2002-12-31

    申请人： Hiromasa Takahashi ,  Jun Hayakawa ,  Susumu Soeya ,  Kenchi Ito

    发明人： Hiromasa Takahashi ,  Jun Hayakawa ,  Susumu Soeya ,  Kenchi Ito

    IPC分类号： G01R33/09 ,  G11B5/39 ,  G11C11/15 ,  H01F10/32 ,  H01L21/8246 ,  H01L27/105 ,  H01L27/14 ,  H01L29/82 ,  H01L29/84 ,  H01L43/08 ,  H01L43/10

    CPC分类号： G11B5/3903 ,  H01L27/228 ,  H01L43/08 ,  H01L43/10

    摘要： A magneto-resistive device has a high reproducing output and is suitable for use as a CPP-GMR device. The magneto-resistive device has a first magnetic layer, a second magnetic layer, and a non-magnetic spacer formed between the first and second magnetic layers. The first magnetic layer contains a magnetic material whose conduction electrons belong to a first energy band, and the second magnetic layer contains a magnetic material whose conduction electrons belong to a second energy band. The first and second energy bands are attributable to orbitals of the same kind, thereby increasing the ratio of change in magnetoresistance and adjusting the electric resistance.

    摘要翻译： 磁阻装置具有高的再现输出，并且适合用作CPP-GMR装置。 磁阻装置具有形成在第一和第二磁性层之间的第一磁性层，第二磁性层和非磁性间隔物。 第一磁性层包含导电电子属于第一能带的磁性材料，第二磁性层含有导电电子属于第二能带的磁性材料。 第一和第二能带可归因于相同轨道，从而增加磁阻变化率和调整电阻。

    Magnetic head, magnetic recording and reproducing apparatus, method for reproducing and recording magnetic recording information
    5.
    发明授权
    Magnetic head, magnetic recording and reproducing apparatus, method for reproducing and recording magnetic recording information 失效
    磁头，磁记录和再现装置，用于再现和记录磁记录信息的方法

    公开(公告)号：US06728080B2

    公开(公告)日：2004-04-27

    申请号：US09808992

    申请日：2001-03-16

    申请人： Kenchi Ito ,  Susumu Soeya

    发明人： Kenchi Ito ,  Susumu Soeya

    IPC分类号： G11B533

    CPC分类号： G11B5/3909 ,  B82Y10/00 ,  B82Y25/00 ,  G11B5/00 ,  G11B5/127 ,  G11B5/245 ,  G11B5/2452 ,  G11B5/3113 ,  G11B5/3116 ,  G11B5/3146 ,  G11B5/33 ,  G11B5/39 ,  G11B5/3919 ,  G11B13/045 ,  G11B2005/0002 ,  G11B2005/0005 ,  G11B2005/0008 ,  G11B2005/0021 ,  G11B2005/3996

    摘要： A magnetic reproducing head and a magnetic recording head. The magnetic reproducing head includes a GMR or TMR magnetic sensor, and a flux guide for introducing a magnetic flux into the magnetic sensor. At least a portion of the flux guide includes a material which is capable of permitting the magnetic flux to pass therethrough at a temperature not lower than a predetermined temperature Tp, but not permitting the magnetic flux to pass therethrough at a temperature lower than Tp. Light is irradiated to only a portion of the flux guide to cause the temperature of the irradiated portion to rise up to Tp or more, thereby permitting a magnetic flux to pass only through the irradiated portion, thus narrowing the track width of magnetic reproducing head when detecting recorded information from the magnetic recording medium.

    摘要翻译： 磁记录头和磁记录头。 磁再现头包括GMR或TMR磁传感器，以及用于将磁通量引入到磁传感器中的磁通引导件。 磁通引导件的至少一部分包括能够允许磁通在不低于预定温度Tp的温度下通过但不允许磁通在低于Tp的温度下通过的材料。 光只照射到磁通引导件的一部分，使照射部分的温度上升到Tp以上，从而允许磁通仅通过照射部分，从而使磁性再现头的磁道宽度变窄， 检测来自磁记录介质的记录信息。

    Thermally assisted magnetic recording media and magnetic recording and reproducing apparatus
    8.
    发明授权
    Thermally assisted magnetic recording media and magnetic recording and reproducing apparatus 有权
    热辅助磁记录介质和磁记录和再现设备

    公开(公告)号：US08084149B2

    公开(公告)日：2011-12-27

    申请号：US11493233

    申请日：2006-07-25

    申请人： Susumu Soeya

    发明人： Susumu Soeya

    IPC分类号： G11B5/66

    CPC分类号： G11B5/66

    摘要： Embodiments of the invention provide a thermally assisted magnetic recording medium, which can overcome resistance against thermal fluctuation at RT and write capability, obtain a drastic temperature variation in coercive force at right below the recording temperature, and be formed at low temperature. In one embodiment, the medium has a layered structure formed of a lower high-KF ferromagnetic (F) layer formed on a substrate, satisfying TW

    摘要翻译： 本发明的实施例提供了一种热辅助磁记录介质，其能够克服对RT下的热波动的阻力和写入能力，在低于记录温度下获得矫顽力的剧烈温度变化，并且在低温下形成。 在一个实施例中，介质具有由形成在基板上的下部高KF铁磁性（F）层形成的分层结构，满足TW

    Magnetic storage/read system with read head including magnetoresistive element
    10.
    发明授权
    Magnetic storage/read system with read head including magnetoresistive element 失效
    具有读磁头的磁存储/读取系统，包括磁阻元件

    公开(公告)号：US5933297A

    公开(公告)日：1999-08-03

    申请号：US45189

    申请日：1993-04-13

    申请人： Hiroyuki Hoshiya ,  Katsuya Mitsuoka ,  Masaaki Sano ,  Reiko Arai ,  Susumu Soeya ,  Hiroshi Fukui ,  Moriaki Fuyama ,  Fumio Sato

    发明人： Hiroyuki Hoshiya ,  Katsuya Mitsuoka ,  Masaaki Sano ,  Reiko Arai ,  Susumu Soeya ,  Hiroshi Fukui ,  Moriaki Fuyama ,  Fumio Sato

    IPC分类号： G11B5/012 ,  G11B5/09 ,  G11B5/39 ,  G11B5/48 ,  H01F10/06

    CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/012 ,  G11B5/09 ,  G11B5/3903 ,  G11B5/3909 ,  G11B5/3919 ,  G11B5/3967 ,  G11B5/398 ,  G11B5/4886 ,  G11B2005/3996

    摘要： A magnetic storage/read system includes a recording medium for magnetically storing a signal and a magnetoresistive element which is driven relative to the recording medium. The magnetoresistive element may include a substrate, a first antiferromagnetic film, a first ferromagnetic film, a first nonmagnetic film, a soft magnetic film, a second nonmagnetic film, a second ferromagnetic film, and a second antiferromagnetic film, wherein the films are sequentially layered directly on the substrate with no intervening layer between any of the films. At least one of the first antiferromagnetic film and the second antiferromagnetic film may be made of nickel oxide. The first ferromagnetic film and the second ferromagnetic film have a first magnetization which is fixed in a predetermined direction, and the soft magnetic film has a second magnetization which is rotatable in response to a magnetic field from the recording medium such that an angle between a direction of the second magnetization and the predetermined direction in which the first magnetization is fixed varies in response to the magnetic field from the recording medium, thereby producing a magnetoresistive effect.

    摘要翻译： 磁存储/读取系统包括用于磁存储信号的记录介质和相对于记录介质驱动的磁阻元件。 磁阻元件可以包括基板，第一反铁磁膜，第一铁磁膜，第一非磁性膜，软磁膜，第二非磁性膜，第二铁磁膜和第二反铁磁膜，其中膜依次层叠 直接在衬底上，在任何膜之间没有中间层。 第一反铁磁膜和第二反铁磁膜中的至少一个可以由氧化镍制成。 第一铁磁膜和第二铁磁膜具有沿预定方向固定的第一磁化，并且软磁膜具有可响应于来自记录介质的磁场而旋转的第二磁化，使得在方向 第二磁化和第一磁化固定的预定方向响应于来自记录介质的磁场而变化，由此产生磁阻效应。