利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

15 条记录 (耗时 0.068 秒)

    Magnetic disk including protective layer having surface with magnetic disk including protrusions, and magnetic disk apparatus including the magnetic disk
    4.
    发明授权
    Magnetic disk including protective layer having surface with magnetic disk including protrusions, and magnetic disk apparatus including the magnetic disk 失效
    磁盘包括具有包括突起的磁盘表面的保护层和包括磁盘的磁盘装置

    公开(公告)号：US5930073A

    公开(公告)日：1999-07-27

    申请号：US625159

    申请日：1996-04-01

    申请人： Hideaki Tanaka ,  Kenichi Gomi ,  Yoshihiko Miyake ,  Sigeru Sano ,  Youichi Inomata ,  Hiroshi Yashiki ,  Yoshiki Kato ,  Masaki Ohura

    发明人： Hideaki Tanaka ,  Kenichi Gomi ,  Yoshihiko Miyake ,  Sigeru Sano ,  Youichi Inomata ,  Hiroshi Yashiki ,  Yoshiki Kato ,  Masaki Ohura

    IPC分类号： G11B5/41 ,  G11B5/58 ,  G11B5/60 ,  G11B5/72 ,  G11B5/82 ,  G11B5/84 ,  G11B23/50 ,  G11B33/14

    CPC分类号： G11B5/6005 ,  G11B23/505 ,  G11B5/72 ,  G11B5/82 ,  G11B5/8408 ,  G11B5/41 ,  G11B5/581 ,  Y10S428/90 ,  Y10T428/24355 ,  Y10T428/24537 ,  Y10T428/2457

    摘要： There is provided a magnetic disk apparatus comprising: at least one magnetic disk having a magnetic layer and a surface protective layer on a substrate; a magnetic head which faces the magnetic disk in a rotating state with a micro gap and is supported by a slider; rotating means for rotating the magnetic disk; and a actuator for moving and positioning the magnetic head to a predetermined position on the magnetic disk, wherein a plurality of protrusions each having a flat surface are formed in at least a region on the surface of the magnetic disk where a contact start/stop operation can be executed. According to the above magnetic disk apparatus, since the frictional force between the disk and the head is small and the flying height of the head can be reduced and the good floating stability is obtained, so that the excellent recording and reproducing characteristics are derived. Further, protrusions are formed on the protective layer of the magnetic disk and the protrusion shapes are changed in a accordance with a radial position of the magnetic disk depending on the flying height of the magnetic head. According to the above magnetic disk apparatus, since the change of spacing can be set smaller than the change of the flying height, high recording density can be achieved.

    摘要翻译： 提供一种磁盘装置，包括：在基板上具有磁性层和表面保护层的至少一个磁盘; 磁头，其在具有微小间隙的旋转状态下面对磁盘，并由滑块支撑; 用于旋转磁盘的旋转装置; 以及用于将磁头移动和定位到磁盘上的预定位置的致动器，其中在磁盘表面上的至少一个区域中形成有各自具有平坦表面的多个突起，其中接触开始/停止操作 可以执行。 根据上述磁盘装置，由于盘与头部之间的摩擦力小，能够降低头部的飞行高度，并且获得良好的浮动稳定性，从而导出良好的记录和再现特性。 此外，在磁盘的保护层上形成突起，并且根据磁头的飞行高度，根据磁盘的径向位置改变突起形状。 根据上述磁盘装置，由于可以将间隔的变化设定得小于飞行高度的变化，所以可以实现高的记录密度。

    Magnetic disk including protective layer having surface with protrusions, and substrate therefor
    5.
    发明授权
    Magnetic disk including protective layer having surface with protrusions, and substrate therefor 失效
    磁盘包括具有突起表面的保护层及其基板

    公开(公告)号：US06303205B1

    公开(公告)日：2001-10-16

    申请号：US09313283

    申请日：1999-05-18

    申请人： Hideaki Tanaka ,  Kenichi Gomi ,  Yoshihiko Miyake ,  Sigeru Sano ,  Youichi Inomata ,  Hiroshi Yashiki ,  Yoshiki Kato ,  Masaki Ohura

    发明人： Hideaki Tanaka ,  Kenichi Gomi ,  Yoshihiko Miyake ,  Sigeru Sano ,  Youichi Inomata ,  Hiroshi Yashiki ,  Yoshiki Kato ,  Masaki Ohura

    IPC分类号： B32B302

    CPC分类号： G11B5/6005 ,  G11B5/41 ,  G11B5/581 ,  G11B5/72 ,  G11B5/82 ,  G11B5/8408 ,  G11B23/505 ,  Y10S428/90 ,  Y10T428/24355 ,  Y10T428/24537 ,  Y10T428/2457

    摘要： A magnetic disk includes a substrate, a magnetic layer, and a protective layer. At least one region of a surface of the magnetic disk has protrusions. A height of each of the protrusions is not less than 5 nm and not greater than 40 nm, and is within ±30% of an average height of the protrusions. A density of the protrusions is not less than 200/mm2 and is not greater than 250,000/mm2. A width of a surface of each of the protrusions in a radial direction of the magnetic disk is not less than 0.1 &mgr;m and is not greater than 10 &mgr;m. The protrusions are discrete protrusions aligned in a spiral direction of the magnetic disk at a predetermined spacing in the radial direction of the magnetic disk. The at least one region of the surface of the magnetic disk includes flat areas between the protrusions. At least some of the flat areas extend continuously from an inner redius of the at least one region of the surface of the magnetic disk to an outer radius of t he at least one region of the surface of the magnetic disk.

    摘要翻译： 磁盘包括基板，磁性层和保护层。 磁盘表面的至少一个区域具有突起。 每个突起的高度不小于5nm且不大于40nm，并且在突起的平均高度的±30％以内。 突起的密度不小于200 / mm 2，不大于250,000 / mm2。 每个突起在磁盘的径向方向上的宽度不小于0.1μm并且不大于10μm。 突起是在磁盘的径向方向上以预定间隔在磁盘的螺旋方向上对齐的离散突起。 磁盘表面的至少一个区域包括突起之间的平坦区域。 至少一些平坦区域从磁盘表面的至少一个区域的内部重新连续延伸到磁盘表面的至少一个区域的外半径。

    Magnetic disk manufacturing method
    7.
    发明授权
    Magnetic disk manufacturing method 失效
    磁盘制造方法

    公开(公告)号：US5411630A

    公开(公告)日：1995-05-02

    申请号：US149770

    申请日：1993-11-10

    申请人： Norikazu Nagase ,  Yoshihiro Moriguchi ,  Youichi Inomata ,  Hiroshi Yashiki ,  Masaki Ohura ,  Yoshiki Kato

    发明人： Norikazu Nagase ,  Yoshihiro Moriguchi ,  Youichi Inomata ,  Hiroshi Yashiki ,  Masaki Ohura ,  Yoshiki Kato

    IPC分类号： G11B5/72 ,  G11B5/82 ,  G11B5/84 ,  B44C1/22

    CPC分类号： G11B5/8408 ,  G11B5/72 ,  G11B5/82

    摘要： A method of forming projections on major surfaces of a disk comprises the steps of supporting the disk in a space, spraying a multiplicity of fine solid particles into the space, charging the sprayed fine solid particles with electricity of the same polarity so that the fine solid particles are floating in the space in a mutually separated state due to electric repellent forces acting between the fine solid particles, electrostatically depositing the fine solid particles charged with electricity on the surfaces of the disk, and etching the disk surfaces by using the deposited fine solid particles as masks, thereby forming a multiplicity of projections on the disk surfaces.

    摘要翻译： 在盘的主表面上形成突起的方法包括以下步骤：将盘支撑在空间中，将多个细小固体颗粒喷射到该空间中，用相同极性的电为喷射的细固体颗粒充电，使得细固体 颗粒在相互分离的状态下漂浮在空间中，这是由于在微细固体颗粒之间作用的疏斥力，在盘的表面上静电沉积带电的细小固体颗粒，并通过使用沉积的细固体蚀刻盘表面 颗粒作为掩模，从而在盘表面上形成多个突起。

    Magnetic recording medium comprising a protective layer having specified electrical resistivity and density
    9.
    发明授权
    Magnetic recording medium comprising a protective layer having specified electrical resistivity and density 失效
    磁记录介质包括具有特定电阻率和密度的保护层

    公开(公告)号：US5773124A

    公开(公告)日：1998-06-30

    申请号：US198592

    申请日：1994-02-18

    申请人： Fuminori Ishikawa ,  Hideaki Tanaka ,  Toshinori Hirano ,  Hiroko Saito ,  Kenichi Gomi ,  Hiroshi Yashiki ,  Youichi Inomata ,  Yoshihiro Moriguchi

    发明人： Fuminori Ishikawa ,  Hideaki Tanaka ,  Toshinori Hirano ,  Hiroko Saito ,  Kenichi Gomi ,  Hiroshi Yashiki ,  Youichi Inomata ,  Yoshihiro Moriguchi

    IPC分类号： G11B5/72

    CPC分类号： G11B5/72 ,  Y10S428/90 ,  Y10S428/931 ,  Y10T428/24355 ,  Y10T428/24942 ,  Y10T428/24992 ,  Y10T428/30

    摘要： This invention relates to the magnetic recording medium, its manufacturing method and the magnetic disk apparatus, in which the ferromagnetic thin film is formed on the substrate board, and the protective layer is provided on that. A Magnetic recording medium of the has at least one layer of the protective layer on the magnetic surface, which is characterized in that the surface of the protective layer is provided with the high noncontinuous large resistance layer, and the density of the surface of the protective layer is higher than other regions other than the said surface. The magnetic recording medium has the surface of the protective layer which contains at least one kind or more of the element of the inert gas element, the halogen element and hydrogen. Therefore, when making a lower flying height of the magnetic head is achieved, the slide durability over the long term is improved, particularly, the slide durability of the magnetic disk apparatus using the MR head can be improved.

    摘要翻译： 磁记录介质及其制造方法和磁盘装置技术领域本发明涉及在基板上形成铁磁性薄膜的磁记录介质及其制造方法和磁盘装置，并且设置保护层。 磁性记录介质在磁性表面上具有至少一层保护层，其特征在于，保护层的表面设置有高不连续的大电阻层，并且保护层表面的密度 层比除了所述表面以外的其它区域高。 磁记录介质具有包含惰性气体元素，卤素元素和氢元素中的至少一种以上的保护层的表面。 因此，当实现磁头的较低飞行高度时，长期的滑动耐久性得到改善，特别是可以提高使用MR磁头的磁盘装置的滑动耐久性。