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49 条记录 (耗时 0.019 秒)

    Layered polycrystalline structure and method of making the same
    12.
    发明授权
    Layered polycrystalline structure and method of making the same 失效
    层状多晶结构及制作方法

    公开(公告)号：US07008705B2

    公开(公告)日：2006-03-07

    申请号：US09812515

    申请日：2001-03-20

    申请人： Ryoichi Mukai ,  Takuya Uzumaki

    发明人： Ryoichi Mukai ,  Takuya Uzumaki

    IPC分类号： G11B5/66 ,  G11B5/70

    CPC分类号： B82Y25/00 ,  G11B5/656 ,  G11B5/732 ,  G11B5/7325 ,  G11B5/84 ,  H01F10/32

    摘要： A layered polycrystalline structure includes a seed crystal or Cr layer containing non-magnetic Cr atoms. A non-magnetic crystal layer such as a Co65Cr35 layer is formed on the exposed surface of the seed crystal layer. A magnetic crystal layer such as a co88Pt12 layer is formed on the exposed surface of the non-magnetic crystal layer. Heat treatment induces the diffusion of the Cr atoms along the grain boundaries within the magnetic crystal layer. Walls of a non-magnetic material can be established along the grain boundaries in the magnetic crystal layer. The diffusion of the Cr atoms can sufficiently be suppressed within the lattices of the magnetic crystal grains. Generation of an incomplete non-magnetic region can thus be restrained to the utmost within the magnetic crystal layer. Noise can be reduced in reproduction of a magnetic information data.

    摘要翻译： 层状多晶结构包括含有非磁性Cr原子的晶种或Cr层。 在晶种层的暴露表面上形成诸如Co 65 N 35 S层的非磁性结晶层。 在非磁性结晶层的露出表面上形成诸如88Bb层的磁性结晶层。 热处理引起Cr原子沿着磁晶层内的晶界的扩散。 可以沿着磁性结晶层的晶界建立非磁性材料的壁。 Cr原子的扩散可以充分地抑制在磁晶粒的晶格内。 因此，可以在磁结晶层内最大程度地抑制不完全非磁性区域的产生。 在磁信息数据的再现中可以减少噪声。

    Magnetic recording medium and magnetic recording device
    13.
    发明授权
    Magnetic recording medium and magnetic recording device 失效
    磁记录介质和磁记录装置

    公开(公告)号：US07611783B2

    公开(公告)日：2009-11-03

    申请号：US11374424

    申请日：2006-03-14

    申请人： Ryosaku Inamura ,  Isatake Kaitsu ,  Takuya Uzumaki

    发明人： Ryosaku Inamura ,  Isatake Kaitsu ,  Takuya Uzumaki

    IPC分类号： G11B5/66

    CPC分类号： G11B5/65 ,  G11B5/656 ,  G11B5/66 ,  G11B5/667 ,  G11B5/732 ,  G11B5/7325

    摘要： A magnetic recording medium includes; a base member; an underlayer formed on the base member; a main recording layer formed on the underlayer, and a writing assist layer formed on or under the main recording layer in contact with the main recording layer. The main recording layer has perpendicular magnetic anisotropy with an anisotropic magnetic field of Hk1 and an inclination of a reversal part of a magnetization curve of a1. The writing assist layer has an anisotropic magnetic field of Hk2 and an inclination of a reversal part of a magnetization curve of a2. The anisotropic magnetic fields Hk1 and Hk2 and the inclinations a1 and a2 satisfy Hk1>Hk2 and a2>a1.

    摘要翻译： 磁记录介质包括： 基地会员 形成在所述基底构件上的底层; 形成在底层上的主记录层，以及形成在与主记录层接触的主记录层上或下面的书写辅助层。 主记录层具有Hk1的各向异性磁场和a1的磁化曲线的反转部分的倾斜的垂直磁各向异性。 写辅助层具有Hk2的各向异性磁场和a2的磁化曲线的反转部分的倾斜度。 各向异性磁场Hk1和Hk2以及倾角a1和a2满足Hk1> Hk2和a2> a1。

    Magnetic recording medium and magnetic recording device
    15.
    发明申请
    Magnetic recording medium and magnetic recording device 审中-公开
    磁记录介质和磁记录装置

    公开(公告)号：US20060222900A1

    公开(公告)日：2006-10-05

    申请号：US11167579

    申请日：2005-06-28

    申请人： Ryosaku Inamura ,  Isatake Kaitsu ,  Takuya Uzumaki

    发明人： Ryosaku Inamura ,  Isatake Kaitsu ,  Takuya Uzumaki

    IPC分类号： G11B5/66

    CPC分类号： G11B5/65 ,  G11B5/656 ,  G11B5/66 ,  G11B5/667 ,  G11B5/7325 ,  G11B5/7379

    摘要： A magnetic recording medium includes; a base member; an underlayer formed on the base member; a main recording layer formed on the underlayer, and a writing assist layer formed on or under the main recording layer in contact with the main recording layer. The main recording layer has perpendicular magnetic anisotropy with an anisotropic magnetic field of Hk1 and an inclination of a reversal part of a magnetization curve of a1. The writing assist layer has an anisotropic magnetic field of Hk2 and an inclination of a reversal part of a magnetization curve of a2. The anisotropic magnetic fields Hk1 and Hk2 and the inclinations a1 and a2 satisfy Hk1>Hk2 ∞0 and a1>a2.

    摘要翻译： 磁记录介质包括： 基地会员 形成在所述基底构件上的底层; 形成在底层上的主记录层，以及形成在与主记录层接触的主记录层上或下面的书写辅助层。 主记录层具有垂直磁各向异性，其各向异性磁场为H＆gt; k1＆lt; 1＆lt; 1＆gt;的磁化曲线的反转部分的倾斜度。 写辅助层具有H＆gt; k2＆gt;的各向异性磁场和2 的磁化曲线的反转部分的倾斜度。 各向异性磁场H k1和H k2以及倾斜a 1和2 2都满足H < k1 H＆lt; k2＆gt;∞0和＆lt; 1＆lt; / SUB＆gt;＆lt; 2＆lt; 2＆gt ;.

    Information recording medium with improved perpendicular magnetic anisotropy
    17.
    发明申请
    Information recording medium with improved perpendicular magnetic anisotropy 审中-公开
    具有改善的垂直磁各向异性的信息记录介质

    公开(公告)号：US20050042481A1

    公开(公告)日：2005-02-24

    申请号：US10959729

    申请日：2004-10-06

    申请人： Kazumasa Shimoda ,  Takuya Uzumaki

    发明人： Kazumasa Shimoda ,  Takuya Uzumaki

    IPC分类号： G11B5/64 ,  G11B5/66 ,  G11B5/667 ,  G11B5/673 ,  G11B5/73 ,  G11B5/738 ,  G11B5/84 ,  G11B5/851

    CPC分类号： G11B5/7325 ,  G11B5/656 ,  G11B5/66 ,  G11B5/8404 ,  Y10T428/265

    摘要： A perpendicular magnetic recording medium including a substrate, a roughness control layer provided on the substrate and having a rough surface with a grain size of 5 to 20 nm and an average roughness (Ra) of 0.2 to 2.0 nm, and an orientation control layer provided on the roughness control layer and containing 30 at % or more of metal solely having an fcc structure. The perpendicular magnetic recording medium further includes a magnetic recording layer having perpendicular magnetic anisotropy provided on the orientation control layer in contact therewith. The magnetic recording layer is formed from a multilayer film composed of ferromagnetic thin films and nonmagnetic thin films alternately stacked.

    摘要翻译： 一种垂直磁记录介质，包括基板，设置在基板上的粗糙表面的平均粗糙度（Ra）为0.2〜2.0nm，平均粗糙度（Ra）为0.2〜2.0nm的粗糙面控制层，以及设置有取向控制层 在粗糙度控制层上，含有30原子％以上的仅具有fcc结构的金属。 垂直磁记录介质还包括具有与定向控制层接触的垂直磁各向异性的磁记录层。 磁记录层由交替堆叠的铁磁性薄膜和非磁性薄膜构成的多层膜形成。

    Magnetic recording medium and its manufacturing method
    18.
    发明授权
    Magnetic recording medium and its manufacturing method 失效
    磁记录介质及其制造方法

    公开(公告)号：US06770386B1

    公开(公告)日：2004-08-03

    申请号：US09654487

    申请日：2000-09-01

    申请人： Yoshiaki Hara ,  Takahiko Sugawara ,  Yutaka Shimizu ,  Takuya Uzumaki ,  Atsushi Tanaka

    发明人： Yoshiaki Hara ,  Takahiko Sugawara ,  Yutaka Shimizu ,  Takuya Uzumaki ,  Atsushi Tanaka

    IPC分类号： G11B566

    CPC分类号： G11B5/82 ,  G11B5/012 ,  G11B5/74 ,  G11B2005/0021 ,  Y10S428/90 ,  Y10T428/2495

    摘要： A magnetic recording medium with a high recording density has a first ferromagnetic layer, a non-magnetic layer, and a second ferromagnetic layer successively deposited as the recording layer on a non-magnetic substrate. The recording layer is heated in concentric circular shapes to divide it into regions in which the magnetic interactions between the ferromagnetic layers exhibit ferromagnetism and regions that exhibit anti-ferromagnetism. The ferromagnetic regions are used for recording tracks, and the anti-ferromagnetic regions function as guard bands. In this manner track density is increased without roughening the surface of the recording medium.

    摘要翻译： 具有高记录密度的磁记录介质具有在非磁性基片上作为记录层连续沉积的第一铁磁层，非磁性层和第二铁磁层。 记录层被加热成同心圆形以将其分成铁磁层之间的磁相互作用显示出铁磁性的区域和表现出抗铁磁性的区域。 铁磁区域用于记录轨道，反铁磁区域用作保护带。 以这种方式，轨道密度增加而不会使记录介质的表面变粗糙。

    MANUFACTURING METHOD FOR MAGNETIC RECORDING MEDIUM
    19.
    发明申请
    MANUFACTURING METHOD FOR MAGNETIC RECORDING MEDIUM 审中-公开
    磁记录介质的制造方法

    公开(公告)号：US20110212272A1

    公开(公告)日：2011-09-01

    申请号：US13049250

    申请日：2011-03-16

    申请人： Tsutomu NISHIHASHI ,  Kazuhiro Watanabe ,  Tadashi Morita ,  Kenji Sato ,  Tsutomu Tanaka ,  Takuya Uzumaki

    发明人： Tsutomu NISHIHASHI ,  Kazuhiro Watanabe ,  Tadashi Morita ,  Kenji Sato ,  Tsutomu Tanaka ,  Takuya Uzumaki

    IPC分类号： C23C14/04

    CPC分类号： G11B5/855

    摘要： A magnetic recording medium having a high magnetic pattern contrast is manufactured. By changing an acceleration voltage that accelerates ions in a process gas, depths (peak depths D0 and D1) from a magnetic layer 44, at which an injection amount of a target element is the maximum, can be made with set depths even if a film thickness of an ion permeation portion 48, which is a thin film portion of a resist 49, decreases. Since the set depths are achieved for the peak depths D0 and D1, a portion to be processed 43 of the magnetic film 44 is made non-magnetized from a top surface to a bottom surface, and a magnetic portion is separated; thus, the magnetic recording medium with a high magnetic pattern contrast can be obtained.

    摘要翻译： 制造具有高磁性图案对比度的磁记录介质。 通过改变加速工艺气体中的离子的加速电压，即使目标元素的注入量最大的磁性层44的深度（峰值深度D0和D1）也可以设定深度，即使是膜 作为抗蚀剂49的薄膜部分的离子透过部分48的厚度减小。 由于对于峰值深度D0和D1实现了设定深度，所以使磁性膜44的被处理部分43从顶面到底面不被磁化，并且磁性部分被分离; 因此，可以获得具有高磁性图案对比度的磁记录介质。

    METHOD OF PRODUCING MAGNETIC STORAGE MEDIUM, MAGNETIC STORAGE MEDIUM AND INFORMATION STORAGE DEVICE
    20.
    发明申请
    METHOD OF PRODUCING MAGNETIC STORAGE MEDIUM, MAGNETIC STORAGE MEDIUM AND INFORMATION STORAGE DEVICE 审中-公开
    磁存储介质的生产方法，磁存储介质和信息存储设备

    公开(公告)号：US20110194207A1

    公开(公告)日：2011-08-11

    申请号：US13123287

    申请日：2009-11-18

    申请人： Kenji Sato ,  Tsutomu Tanaka ,  Takuya Uzumaki ,  Tsutomu Nishihashi ,  Tadashi Morita ,  Kazuhiro Watanabe

    发明人： Kenji Sato ,  Tsutomu Tanaka ,  Takuya Uzumaki ,  Tsutomu Nishihashi ,  Tadashi Morita ,  Kazuhiro Watanabe

    IPC分类号： G11B21/02 ,  C23C14/14 ,  C23C14/04 ,  G11B5/66

    CPC分类号： G11B5/855

    摘要： It is an object to provide a simple method capable of producing a magnetic storage medium, a magnetic storage medium and an information storage device which may be produced by a simple production method with a high recording density, and a magnetic disk is produced by a production method having: a film-forming process of forming, on a substrate 61, a magnetic film made of a Co—Cr—Pt alloy and having a thickness of less than 10 nm; and an ion injection process of forming, by reducing saturation magnetization by locally injecting ions into a point other than plural points that become magnetic dots on each of which information is magnetically recorded, a between-dot separator having saturation magnetization smaller than saturation magnetization of the magnetic dots, between the magnetic dots.

    摘要翻译： 本发明的目的是提供一种能够制造可以通过具有高记录密度的简单制造方法制造的磁存储介质，磁存储介质和信息存储装置的简单方法，并且通过生产生产磁盘 方法具有：在基板61上形成厚度小于10nm的由Co-Cr-Pt合金制成的磁膜的成膜工艺; 以及离子注入方法，通过将离子局部注入除磁性地记录有各自信息的磁点以外的点以外的点来降低饱和磁化，形成饱和磁化强度小于饱和磁化强度的饱和磁化强度的点间隔离体 磁点之间，磁点之间。