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

IPC分类号： G11B5/60 ,  G11B5/72 ,  G11B5/82 ,  G11B5/84 ,  G11B23/50 ,  G11B5/74

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。

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

IPC分类号： G11B5/41 ,  G11B5/60 ,  G11B5/72 ,  G11B5/82 ,  G11B5/84 ,  G11B5/66 ,  B05D5/12

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。