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    Magnetic recording media, magnetic recording apparatus, and method for manufacturing magnetic recording media
    5.
    发明申请
    Magnetic recording media, magnetic recording apparatus, and method for manufacturing magnetic recording media 有权
    磁记录介质，磁记录装置和磁记录介质的制造方法

    公开(公告)号：US20070230055A1

    公开(公告)日：2007-10-04

    申请号：US11723977

    申请日：2007-03-22

    申请人： Satoshi Shirotori ,  Masatoshi Sakurai ,  Akira Kikitsu ,  Yoshiyuki Kamata ,  Kaori Kimura

    发明人： Satoshi Shirotori ,  Masatoshi Sakurai ,  Akira Kikitsu ,  Yoshiyuki Kamata ,  Kaori Kimura

    IPC分类号： G11B5/82

    CPC分类号： G11B5/82 ,  G11B5/667 ,  G11B5/72 ,  G11B5/7315 ,  G11B5/7325 ,  G11B5/855

    摘要： A magnetic recording media includes a toroidal substrate, a surface thereof is divided into a recording area located in a central part between an outer peripheral edge and an inner peripheral edge, edge areas located within 100 μm or more and 2,000 μm or less from the outer and inner peripheral edges, respectively, and adjacent areas located between the edge areas and the recording area, respectively, a magnetic film on the substrate, and a protective film on the magnetic film, in which the magnetic film is thinner in the edge areas than that in the adjacent areas, and at least a part of the protective film in the edge areas is thicker than that in the adjacent areas.

    摘要翻译： 磁记录介质包括环形基板，其表面被分成位于外周边缘和内周边缘之间的中心部分的记录区域，位于距离外部边缘100μm以上且2000μm以下的边缘区域 分别位于边缘区域和记录区域之间的内周边缘和相邻区域，基板上的磁性膜和磁性膜上的保护膜，其中磁性膜在边缘区域中比薄 在相邻区域中，边缘区域中的保护膜的至少一部分比相邻区域的保护膜厚。

    Method for manufacturing magnetic recording medium and magnetic recording medium
    6.
    发明授权
    Method for manufacturing magnetic recording medium and magnetic recording medium 失效
    磁记录介质和磁记录介质的制造方法

    公开(公告)号：US08475949B2

    公开(公告)日：2013-07-02

    申请号：US13236726

    申请日：2011-09-20

    申请人： Kaori Kimura ,  Yoshiyuki Kamata ,  Satoshi Shirotori ,  Masatoshi Sakurai

    发明人： Kaori Kimura ,  Yoshiyuki Kamata ,  Satoshi Shirotori ,  Masatoshi Sakurai

    IPC分类号： G11B5/66

    CPC分类号： G11B5/855 ,  G11B5/65

    摘要： A magnetic recording medium is presented that includes protruded magnetic patterns formed on a substrate, and a nonmagnetic material filled in recesses between the magnetic patterns in which an oxygen concentration thereof is higher at a surface side than at a substrate side. The nonmagnetic material is at least one selected from the group consisting of Si, SiC, SiC—C, SiOC, SiON, Si3N4, Al, AlxOy, Ti and TiOx.

    摘要翻译： 提出了一种磁记录介质，其包括形成在基板上的突出的磁图案，以及填充在表面侧的氧浓度高于基板侧的磁性图案之间的凹部中的非磁性材料。 非磁性材料是选自Si，SiC，SiC-C，SiOC，SiON，Si 3 N 4，Al，Al x O y，Ti和TiO x中的至少一种。

    Patterned media and method of manufacturing the same, and magnetic recording apparatus
    7.
    发明申请
    Patterned media and method of manufacturing the same, and magnetic recording apparatus 有权
    图案化介质及其制造方法，以及磁记录装置

    公开(公告)号：US20100302679A1

    公开(公告)日：2010-12-02

    申请号：US12805471

    申请日：2010-08-02

    申请人： Yoshiyuki Kamata ,  Masatoshi Sakurai ,  Satoshi Shirotori ,  Kaori Kimura

    发明人： Yoshiyuki Kamata ,  Masatoshi Sakurai ,  Satoshi Shirotori ,  Kaori Kimura

    IPC分类号： G11B5/74 ,  G11B5/127

    CPC分类号： G11B5/82 ,  B82Y10/00 ,  G11B5/59655 ,  G11B5/743 ,  G11B5/855

    摘要： A patterned media has a substrate, and a magnetic recording layer on the substrate including protruded magnetic patterns and a nonmagnetic material filled in between the protruded magnetic patterns. In the patterned media, a depth Db and a depth Da, which are defined that Db is a depth from a surface of the magnetic patterns to a surface of the nonmagnetic material filled in a first central part between the magnetic patterns adjacent to each other in a cross-track direction or a down-track direction, and Da is a depth from a surface of the magnetic patterns to a surface of the nonmagnetic material filled in a second central part in a portion surrounded by the magnetic patterns, have a relationship that the depth Da is greater than the depth Db.

    摘要翻译： 图案化介质具有基板，并且在基板上的磁记录层包括突出的磁图案和填充在突出磁图案之间的非磁性材料。 在图案化介质中，深度Db和深度Da被定义为Db是从磁图案的表面到填充在彼此相邻的磁图案之间的第一中心部分的非磁性材料的表面的深度 交叉轨道方向或向下轨道方向，并且Da是从磁图案的表面到填充在由磁图案包围的部分中的第二中心部分中的非磁性材料的表面的深度，具有如下关系： 深度Da大于深度Db。

    METHOD OF MANUFACTURING MAGNETIC RECORDING MEDIUM
    9.
    发明申请
    METHOD OF MANUFACTURING MAGNETIC RECORDING MEDIUM 审中-公开
    制造磁记录介质的方法

    公开(公告)号：US20090166323A1

    公开(公告)日：2009-07-02

    申请号：US12400288

    申请日：2009-03-09

    申请人： Satoshi Shirotori ,  Yoshiyuki Kamata ,  Kaori Kimura ,  Masatoshi Sakurai

    发明人： Satoshi Shirotori ,  Yoshiyuki Kamata ,  Kaori Kimura ,  Masatoshi Sakurai

    IPC分类号： B44C1/22

    CPC分类号： G11B5/855 ,  G11B5/72 ,  G11B5/82

    摘要： According to one embodiment, a method of manufacturing a magnetic recording medium includes depositing a magnetic recording layer and a sacrifice layer on a substrate, patterning the sacrifice layer and magnetic recording layer to form protruded magnetic patterns and sacrifice patterns, depositing a nonmagnetic material in recesses between the magnetic patterns and sacrifice patterns and on the sacrifice patterns, and etching back the nonmagnetic material.

    摘要翻译： 根据一个实施例，制造磁记录介质的方法包括在基片上沉积磁记录层和牺牲层，图案化牺牲层和磁记录层以形成突出的磁图并牺牲图案，将非磁性材料沉积在凹陷中 在磁图案和牺牲图案之间以及牺牲图案上，并且蚀刻非磁性材料。