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1.发明授权
公开(公告)号：US5504646A
公开(公告)日：1996-04-02
申请号：US77874
申请日：1993-06-18
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
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。
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2.发明授权
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
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。
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3.发明授权公开(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。
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4.发明授权
公开(公告)号：US5656349A
公开(公告)日：1997-08-12
申请号：US725772
申请日：1991-07-02
申请人： Kenichi Gomi , Hideaki Tanaka , Hiroyuki Sugimoto , Shoichi Sawahata , Masaki Ohura , Yoshihiko Miyake , Yoshiki Kato , Hiroshi Yashiki , Youichi Inomata , Yoshihiro Moriguchi
发明人： Kenichi Gomi , Hideaki Tanaka , Hiroyuki Sugimoto , Shoichi Sawahata , Masaki Ohura , Yoshihiko Miyake , Yoshiki Kato , Hiroshi Yashiki , Youichi Inomata , Yoshihiro Moriguchi
CPC分类号： G11B5/6005 , G11B5/41 , G11B5/72 , G11B5/82 , G11B5/84 , Y10S428/90 , Y10T428/24355
摘要： A magnetic disk has a magnetic layer and a protective layer disposed on the magnetic layer. A multiplicity of lands having sizes within a predetermined range of sizes and generally equal heights within a predetermined range are formed on the surface of the protective layer at a density within a predetermined range. The lands serve to effectively remove contaminants attached to the floating surface of a magnetic head to ensure a desired sliding reliability and floating stability of the head during a long period of time even in the case of a high-density magnetic disk apparatus in which the extent of floating of the head is small. The reliability with which the magnetic disk apparatus operates is thereby improved. The lands are formed on the surface of the protective layer by a process of forming a mask of fine particles on the protective layer surface and etching the protective layer surface through this mask.
摘要翻译： 磁盘具有设置在磁性层上的磁性层和保护层。 在预定范围内的密度下，在保护层的表面上形成尺寸在预定范围内的大小和大致相同高度的尺寸的多个平台。 这些焊盘用于有效地去除附着在磁头的浮动表面上的污染物，以确保在长时间内所需的滑动可靠性和浮动稳定性，即使在高密度磁盘设备的情况下， 的头部浮动很小。 从而提高了磁盘装置的可靠性。 通过在保护层表面上形成微粒掩模并通过该掩模蚀刻保护层表面的工艺，在保护层的表面上形成焊盘。
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公开(公告)号：US5690838A
公开(公告)日：1997-11-25
申请号：US460928
申请日：1995-06-05
申请人： Yoshihiro Moriguchi , Youichi Inomata , Hiroshi Yashiki , Yoshiki Kato , Kenichi Gomi , Hideaki Tanaka
发明人： Yoshihiro Moriguchi , Youichi Inomata , Hiroshi Yashiki , Yoshiki Kato , Kenichi Gomi , Hideaki Tanaka
CPC分类号： G11B5/6005 , G11B23/505 , G11B5/72 , G11B5/8408
摘要： A magnetic recording medium excellent in corrosion resistance and rubbing reliability is realized by forming a number of concavities and convexities on the surface of a protective layer formed on a substrate and applying dry etching with a noble gas after the formation of the concavities and convexities to form a modified layer having hydrophobic nature on the surface of the protective layer.
摘要翻译： 通过在形成在基板上的保护层的表面上形成多个凹凸并且在形成凹凸之后用惰性气体进行干蚀刻来实现耐腐蚀性和摩擦可靠性优异的磁记录介质，以形成 在保护层的表面上具有疏水性的改性层。
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6.发明授权
公开(公告)号：US5285343A
公开(公告)日：1994-02-08
申请号：US595414
申请日：1990-10-11
申请人： Hideaki Tanaka , Kenichi Gomi , Shoichi Sawahata , Maki Kondo , Masaki Ohura , Norikazu Tsumita , Katuo Uda , Yoshiki Kato , Yoshihiko Miyake , Toyoji Okuwaki , Noriaki Okamoto , Nobuo Nakagawa
发明人： Hideaki Tanaka , Kenichi Gomi , Shoichi Sawahata , Maki Kondo , Masaki Ohura , Norikazu Tsumita , Katuo Uda , Yoshiki Kato , Yoshihiko Miyake , Toyoji Okuwaki , Noriaki Okamoto , Nobuo Nakagawa
CPC分类号： B82Y10/00 , G11B23/505 , G11B5/6005 , G11B5/72 , G11B5/743 , G11B5/82 , G11B5/8408
摘要： There is provided a magnetic disk apparatus including 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 magnetic head positioning means 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, an area ratio of the protrusions per 1 mm.sup.2 lies within a range from 0.1 to 80%, a height of the protrusion of the maximum height among the protrusions lies within a range from 5 to 40 nm, and the magnetic layer is formed on the whole surface on the base plate. According to the above magnetic disk apparatus, the frictional force between the disk and the head is small, and the floating height of the head can be reduced, and good floating stability is obtained, so that excellent recording and reproducing characteristics are obtained.
摘要翻译： 提供一种磁盘装置，其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; 以及磁头定位装置，用于将磁头移动和定位到磁盘上的预定位置，其中在磁盘表面上的至少一个区域上形成有各自具有平坦表面的多个突起，其中接触开始/ 可以执行停止操作，每1mm 2的突起的面积比在0.1至80％的范围内，突起中的最大高度的突起的高度在5至40nm的范围内，并且磁 在基板上的整个表面上形成层。 根据上述磁盘装置，盘与头部之间的摩擦力小，可以降低头部的浮动高度，并且获得良好的浮动稳定性，从而获得优异的记录和再现特性。
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7.发明授权
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。
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公开(公告)号：US07209309B2
公开(公告)日：2007-04-24
申请号：US10920343
申请日：2004-08-18
申请人： Masayuki Kurita , Masaaki Matsumoto , Yuuichi Ootani , Yoshihiko Miyake , Shinsuke Higuchi , Hideaki Tanaka , Junguo Xu
发明人： Masayuki Kurita , Masaaki Matsumoto , Yuuichi Ootani , Yoshihiko Miyake , Shinsuke Higuchi , Hideaki Tanaka , Junguo Xu
CPC分类号： G11B21/21 , G11B5/4886 , G11B5/54 , G11B5/56 , G11B5/581 , G11B5/6005
摘要： A magnetic disk apparatus includes a rotation mechanism for driving a magnetic disk, a magnetic head slider being floated in close proximity to a surface of the magnetic disk, a recording/reproduction element for performing recording and playback of information, a drive unit for causing a distance between the record/reproduction element and the magnetic disk to change, and an arrangement to effect position determination of the magnetic head slider, wherein the apparatus has a detection unit for permitting the drive unit to gradually reduce the distance between the record/reproduction element and the magnetic disk and for detecting occurrence of contact therebetween, and a control unit for controlling the drive unit in such a way as to cause, the record/reproduction element to shift in position by a fixed amount to thereby let the distance between this element and magnetic disk increase accordingly.
摘要翻译： 磁盘装置包括用于驱动磁盘的旋转机构，与磁盘表面相邻浮动的磁头滑块，用于执行信息的记录和重放的记录/再现元件，用于使 记录/再现元件与磁盘之间的距离改变，以及用于实现磁头滑动器的位置确定的装置，其中该装置具有用于允许驱动单元逐渐减小记录/再现元件之间的距离的检测单元 和磁盘，用于检测它们之间的接触的发生;以及控制单元，用于控制驱动单元，使得记录/再现元件在位置上移动固定的量，从而使该元件之间的距离 磁盘也相应增加。
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公开(公告)号：US20070070550A1
公开(公告)日：2007-03-29
申请号：US11605998
申请日：2006-11-30
申请人： Masayuki Kurita , Masaaki Matsumoto , Yuuichi Ootani , Yoshihiko Miyake , Shinsuke Higuchi , Hideaki Tanaka , Junguo Xu
发明人： Masayuki Kurita , Masaaki Matsumoto , Yuuichi Ootani , Yoshihiko Miyake , Shinsuke Higuchi , Hideaki Tanaka , Junguo Xu
IPC分类号： G11B5/60
CPC分类号： G11B21/21 , G11B5/4886 , G11B5/54 , G11B5/56 , G11B5/581 , G11B5/6005
摘要： A disk apparatus including: a head slider for being floated above a disk; a record/reproduction element provided at the head slider for recording and/or reproducing information on and/or from the disk; a displacer for shifting the record/reproduction element to approach closer to, or retreat farther away from, the disk; and a controller for controlling the displacer to shift the record/reproduction element in a direction to retreat rather from the disk, if the record/reproduction element has contacted the disk.
摘要翻译： 一种盘装置，其特征在于，包括：浮动盘， 提供在磁头滑块上的记录/再现元件，用于在和/或从磁盘上记录和/或再现信息; 移位器，用于使记录/再现元件移动靠近或离开盘远离; 以及控制器，用于如果记录/再现元件已经接触到盘，则控制该置换器以使记录/再现元件沿着退回的方向而不是从该盘移位。
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公开(公告)号：US06798605B2
公开(公告)日：2004-09-28
申请号：US09929128
申请日：2001-08-15
申请人： Masayuki Kurita , Masaaki Matsumoto , Yuuichi Ootani , Yoshihiko Miyake , Shinsuke Higuchi , Hideaki Tanaka , Junguo Xu
发明人： Masayuki Kurita , Masaaki Matsumoto , Yuuichi Ootani , Yoshihiko Miyake , Shinsuke Higuchi , Hideaki Tanaka , Junguo Xu
IPC分类号： G11B2102
CPC分类号： G11B21/21 , G11B5/4886 , G11B5/54 , G11B5/56 , G11B5/581 , G11B5/6005
摘要： A magnetic disk apparatus includes a rotation mechanism for driving a magnetic disk, a magnetic head slider being floated in close proximity to a surface of the magnetic disk, a recording/reproduction element for performing recording and playback of information, a drive unit for causing a distance between the record/reproduction element and the magnetic disk to change, and means for performing position determination of the magnetic head slider, wherein the apparatus has a detection unit for permitting the drive unit to gradually reduce the distance between the record/reproduction element and the magnetic disk and for detecting occurrence of contact therebetween, and a control unit for controlling the drive unit in such a way as to cause, the record/reproduction element to shift in position by a fixed amount to thereby let the distance between this element and magnetic disk increase accordingly.
摘要翻译： 磁盘装置包括用于驱动磁盘的旋转机构，与磁盘表面相邻浮动的磁头滑动器，用于执行信息的记录和重放的记录/再现元件，用于使 记录/再现元件与磁盘之间的距离改变，以及用于执行磁头滑动器的位置确定的装置，其中该装置具有用于允许驱动单元逐渐减小记录/再现元件与 磁盘和用于检测其间的接触的发生;以及控制单元，用于控制驱动单元，使得记录/再现元件使位置偏移固定的量，从而使该元件与 磁盘相应增加。
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