公开(公告)号：US5388020A

公开(公告)日：1995-02-07

申请号：US964897

申请日：1992-10-22

申请人： Takao Nakamura ,  Nobuya Sekiyama ,  Hiroshi Tani ,  Yoshiki Kato

发明人： Takao Nakamura ,  Nobuya Sekiyama ,  Hiroshi Tani ,  Yoshiki Kato

IPC分类号： G11B5/66 ,  G11B5/60 ,  G11B5/65 ,  G11B5/72 ,  G11B5/73 ,  G11B5/738 ,  G11B5/82 ,  G11B5/84 ,  G11B21/21 ,  B05D5/12

CPC分类号： G11B5/6005 ,  G11B5/82 ,  G11B5/8404 ,  Y10T428/24355

摘要： There is disclosed a magnetic disk having a surface shape so designed as to satisfy flying characteristics and sliding characteristics in CSS and the head adhesion even in a high-density recording. The surface shape of the contact surface of the magnetic disk for contact with a sliding surface of a magnetic head plays a very important role in the magnetic disk characteristics such as the head flying characteristics, the head adhesion and the CSS characteristics, and it has been found that a three-dimensional load ratio (0.5% to 10%) and a symmetric property Rsk (0.5 to 2) of a cross-section curve representing depressions and projections on the surface are essential as items of evaluation of this surface shape. For example, the surface shape of an aluminum alloy disk plated with Ni-P is processed in such a manner that the load ratio of the three-dimensional load ratio BR5 is 0.5% to 10% and that the symmetric property Rsk of the cross-sectional shape of this surface is 0.5 to 2. Then, a chromium intermediate film, a Co-Cr magnetic film, a carbon protective film and a film of lubricant are formed on the substrate. By doing so, the magnetic disk having the desired characteristics can be obtained.

摘要翻译： 公开了一种表面形状的磁盘，其设计成即使在高密度记录中也能满足CSS中的飞行特性和滑动特性以及头部粘附。 用于与磁头的滑动表面接触的磁盘的接触表面的表面形状在诸如头部飞行特性，头部附着力和CSS特性的磁盘特性中起着非常重要的作用，并且已经被 发现表面上的凹凸的横截面曲线的三维载荷比（0.5％〜10％）和对称性Rsk（0.5〜2）是必须的，作为该表面形状的评价项目。 例如，以三维负荷比BR5的负载比为0.5％〜10％的方式对镀有Ni-P的铝合金盘的表面形状进行加工， 该表面的截面形状为0.5〜2。然后，在基板上形成铬中间膜，Co-Cr磁性膜，碳保护膜和润滑剂膜。 通过这样做，可以获得具有期望特性的磁盘。

公开(公告)号：US5549211A

公开(公告)日：1996-08-27

申请号：US359272

申请日：1994-12-19

申请人： Takao Nakamura ,  Nobuya Sekiyama ,  Hiroshi Tani ,  Yoshiki Kato

发明人： Takao Nakamura ,  Nobuya Sekiyama ,  Hiroshi Tani ,  Yoshiki Kato

IPC分类号： G11B5/66 ,  G11B5/60 ,  G11B5/65 ,  G11B5/72 ,  G11B5/73 ,  G11B5/738 ,  G11B5/82 ,  G11B5/84 ,  G11B21/21 ,  B44C1/22

CPC分类号： G11B5/6005 ,  G11B5/82 ,  G11B5/8404 ,  Y10T428/24355

摘要： There is disclosed a magnetic disk having a surface shape so designed as to satisfy flying characteristics and sliding characteristics in CSS and the head adhesion even in a high-density recording. The surface shape of the contact surface of the magnetic disk for contact with a sliding surface of a magnetic head plays a very important role in the magnetic disk characteristics such as the head flying characteristics, the head adhesion and the CSS characteristics, and it has been found that a three-dimensional load ratio (0.5% to 10%) and a symmetric property Rsk (0.5 to 2) of a cross-section curve representing depressions and projections on the surface are essential as items of evaluation of this surface shape. For example, the surface shape of an aluminum alloy disk plated with Ni--P is processed in such a manner that the load ratio of the three-dimensional load ratio BR5 is 0.5% to 10% and that the symmetric property Rsk of the cross-sectional shape of this surface is 0.5 to 2. Then, a chromium intermediate film, a Co--Cr magnetic film, a carbon protective film and a film of lubricant are formed on the substrate. By doing so, the magnetic disk having the desired characteristics can be obtained.

摘要翻译： 公开了一种表面形状的磁盘，其设计成即使在高密度记录中也能满足CSS中的飞行特性和滑动特性以及头部粘附。 用于与磁头的滑动表面接触的磁盘的接触表面的表面形状在诸如头部飞行特性，头部附着力和CSS特性的磁盘特性中起着非常重要的作用，并且已经被 发现表面上的凹凸的横截面曲线的三维载荷比（0.5％〜10％）和对称性Rsk（0.5〜2）是必须的，作为该表面形状的评价项目。 例如，以三维负荷比BR5的负载比为0.5％〜10％的方式对镀有Ni-P的铝合金盘的表面形状进行加工， 该表面的截面形状为0.5〜2。然后，在基板上形成铬中间膜，Co-Cr磁性膜，碳保护膜和润滑剂膜。 通过这样做，可以获得具有期望特性的磁盘。

公开(公告)号：US5680285A

公开(公告)日：1997-10-21

申请号：US622623

申请日：1996-03-27

申请人： Takao Nakamura ,  Nobuya Sekiyama ,  Hiroshi Tani ,  Yoshiki Kato

发明人： Takao Nakamura ,  Nobuya Sekiyama ,  Hiroshi Tani ,  Yoshiki Kato

IPC分类号： G11B5/66 ,  G11B5/60 ,  G11B5/65 ,  G11B5/72 ,  G11B5/73 ,  G11B5/738 ,  G11B5/82 ,  G11B5/84 ,  G11B21/21 ,  B05D5/12

CPC分类号： G11B5/6005 ,  G11B5/82 ,  G11B5/8404 ,  Y10T428/24355

摘要： There is disclosed a magnetic disk having a surface shape so designed as to satisfy flying and sliding characteristics in CSS and to avoid head adhesion even in a high-density recording. The surface shape of the contact surface of the magnetic disk for contact with a sliding surface of a magnetic head plays a very important role in the magnetic disk characteristics such as the head flying characteristics, the head adhesion and the CSS characteristics, and it has been found that a three-dimensional load ratio BR5 (0.5% to 10%) and a symmetric property Rsk (0.5 to 2) of a cross-section curve representing depressions and projections on the surface are essential as items of evaluation of this surface shape. For example, the surface shape of an aluminum alloy disk plated with Ni-P is processed in such a manner that the load ratio of the three-dimensional load ratio BR5 is 0.5% to 10% and that the symmetric property Rsk of the cross-sectional shape of this surface is 0.5 to 2. Then, a chromium intermediate film, a Co-Cr magnetic film, a carbon protective film and a film of lubricant are formed on the substrate. By doing so, the magnetic disk having the desired characteristics can be obtained.

摘要翻译： 公开了一种磁盘，其表面形状被设计成满足CSS中的飞行和滑动特性，并且即使在高密度记录中也避免头部附着。 用于与磁头的滑动表面接触的磁盘的接触表面的表面形状在诸如头部飞行特性，头部附着力和CSS特性的磁盘特性中起着非常重要的作用，并且已经被 发现表面上的凹凸的横截面曲线的三维载荷比BR5（0.5％〜10％）和对称性Rsk（0.5〜2）是必须的，作为该表面形状的评价项目。 例如，以三维负载比BR5的负载比为0.5％〜10％的方式对镀有Ni-P的铝合金盘的表面形状进行加工， 该表面的截面形状为0.5〜2。然后，在基板上形成铬中间膜，Co-Cr磁性膜，碳保护膜和润滑剂膜。 通过这样做，可以获得具有期望特性的磁盘。

公开(公告)号：US5202810A

公开(公告)日：1993-04-13

申请号：US513609

申请日：1990-04-24

申请人： Takao Nakamura ,  Nobuya Sekiyama ,  Masaki Ohura ,  Yoshiki Kato ,  Noriaki Okamoto ,  Masami Masuda

发明人： Takao Nakamura ,  Nobuya Sekiyama ,  Masaki Ohura ,  Yoshiki Kato ,  Noriaki Okamoto ,  Masami Masuda

IPC分类号： G11B5/82 ,  G11B5/84

CPC分类号： G11B5/8404 ,  G11B5/82 ,  Y10S428/90

摘要： A magnetic disk includes a non-magnetic substrate with a surface processed layer having fine irregularities formed at least on a main surface thereof, and at least thin film magnetic film and a protective film formed in that order on the non-magnetic substrate in such a manner that the fine irregularities are duplicated thereof. The surface of the surface processed layer of the non-magnetic substrate has protrusions whose surfaces are made flat and a configuration which exhibits a three-dimensional bearing curve in which the bearing ratio at a section taken at a depth from the top of the surface which corresponds to the portion of the top portion deformed by the head load during the contact start-stops drive is between 0.1% and 10%. The protrusions formed on the surface processed layer have a height ranging from several nm to several tens of nm. The bearing ratio is a value obtained at a depth of 5 to 10 nm from the top of the protrusions.

摘要翻译： 磁盘包括具有至少在其主表面上形成有细微凹凸的表面处理层的非磁性基板，以及至少在非磁性基板上形成的薄膜磁性膜和保护膜。 方式是细微的不规则被复制。 非磁性基板的表面处理层的表面具有突起，其表面是平坦的，并且具有三维轴承曲线的构造，其中在从表面的顶部开始的深度处截取的截面的轴承比 对应于在接触开始 - 停止期间头部负载变形的顶部的部分在0.1％和10％之间。 形成在表面处理层上的突起具有几nm至几十nm的高度。 轴承比是从突起的顶部开始的深度为5〜10nm的值。

公开(公告)号：US5364655A

公开(公告)日：1994-11-15

申请号：US838319

申请日：1992-02-20

申请人： Takao Nakamura ,  Nobuya Sekiyama ,  Tsuneo Kawai ,  Yoshiki Kato

发明人： Takao Nakamura ,  Nobuya Sekiyama ,  Tsuneo Kawai ,  Yoshiki Kato

IPC分类号： B24B37/00 ,  B24B37/015 ,  B24B37/04 ,  B24B37/08 ,  B24B49/14 ,  B24B57/02 ,  G11B5/84 ,  G11B23/50 ,  H01F10/02

CPC分类号： G11B23/505 ,  B24B37/08 ,  B24B49/14 ,  B24B57/02 ,  G11B5/84 ,  G11B5/8404

摘要： A thin plate such as a magnetic disk substrate is rotatably placed in a hole of a carrier provided between upper and lower surface plates forming a dynamic pressure producing surface in a temperature-controlled polishing liquid. When the number of revolutions of the surface plates increases, the dynamic pressure effect of the polishing agent is produced between the surface-plate surface and the substrate surface so that the substrate is polished in the non-contact state with the surface plate. The substrate surface is polished by fine free abrasive grains in the polishing liquid flowing between the surface plate and the substrate to provide a high plane degree to which surface precision of the surface plate is transferred. The present invention makes employs a float polishing, and is particularly suit to surface polishing of a thin plate such as a magnetic disk substrate which resets a residual processed strain. A magnetic disk having an excellent surface state can be realized.

摘要翻译： 诸如磁盘基板的薄板可旋转地放置在设置在上表面板和下表面板之间的载体的孔中，在受温度控制的抛光液中形成动压产生表面。 当表面板的转数增加时，在表面板和基板表面之间产生抛光剂的动态压力效应，使得基板与表面板处于非接触状态。 通过在表面板和基板之间流动的研磨液中的微细磨粒抛光基板表面，以提供表面板的表面精度传递的高平面度。 本发明采用浮法抛光，特别适用于复位残余加工应变的诸如磁盘基板的薄板的表面抛光。 可以实现具有优异表面状态的磁盘。

公开(公告)号：US5353182A

公开(公告)日：1994-10-04

申请号：US985176

申请日：1992-12-02

申请人： Takao Nakamura ,  Nobuya Sekiyama ,  Masaki Ohura ,  Yoshiki Kato ,  Noriaki Okamoto ,  Masami Masuda

发明人： Takao Nakamura ,  Nobuya Sekiyama ,  Masaki Ohura ,  Yoshiki Kato ,  Noriaki Okamoto ,  Masami Masuda

IPC分类号： G11B5/82 ,  G11B5/84 ,  G11B5/48 ,  B05D5/12 ,  G11B5/012

CPC分类号： G11B5/8404 ,  G11B5/82 ,  Y10S428/90

摘要： A magnetic disk includes a non-magnetic substrate with a surface processed layer having fine irregularities formed at least on a main surface thereof, and at least a thin film magnetic film and a protective film formed in that order on the non-magnetic substrate in such a manner that the fine irregularities are duplicated thereof. The surface of the surface processed layer of the non-magnetic substrate has protrusions whose surfaces are made flat and a configuration which exhibits a three-dimensional bearing curve in which the bearing ratio at a section taken at a depth from the top of the surface which corresponds to the portion of the top portion deformed by the head load during the contact start-stops drive is between 0.1% and 10%. The protrusions formed on the surface processed layer have a height ranging from several nm to several tens of nm. The bearing ratio is a value obtained at a depth of 5 to 10 nm from the top of the protrusions.

摘要翻译： 磁盘包括具有至少在其主表面上形成有细微凹凸的表面处理层的非磁性基板，以及至少在非磁性基板上依次形成的薄膜磁性膜和保护膜 这种细微的不规则性被复制的方式。 非磁性基板的表面处理层的表面具有突起，其表面是平坦的，并且具有三维轴承曲线的构造，其中在从表面的顶部开始的深度处截取的截面的轴承比 对应于在接触开始 - 停止期间头部负载变形的顶部的部分在0.1％和10％之间。 形成在表面处理层上的突起具有几nm至几十nm的高度。 轴承比是从突起的顶部开始的深度为5〜10nm的值。

公开(公告)号：US5825591A

公开(公告)日：1998-10-20

申请号：US768958

申请日：1996-12-18

申请人： Takao Nakamura ,  Nobuya Sekiyama ,  Keiko Nakano ,  Kenji Furusawa ,  Hiroyuki Kataoka ,  Takaaki Shirakura ,  Shinya Matsuoka

发明人： Takao Nakamura ,  Nobuya Sekiyama ,  Keiko Nakano ,  Kenji Furusawa ,  Hiroyuki Kataoka ,  Takaaki Shirakura ,  Shinya Matsuoka

IPC分类号： G11B5/02 ,  G11B5/187 ,  G11B5/60 ,  G11B5/71 ,  G11B5/725 ,  G11B21/21 ,  G11B5/48 ,  G11B21/16

CPC分类号： G11B5/6005

摘要： The present invention relates to a magnetic disk unit of a high memory capacity wherein a magnetic head and a magnetic disk with a lubricant layer formed on the surface thereof are allowed to perform a relative motion in a mutually contacted state to write and read out information of a high recording density, and the invention is also concerned with the shape and material of the magnetic head suitable for a continual sliding motion of the head on the magnetic disk surface, as well as the lubricant layer formed on the disk surface. According to the present invention, the magnetic head, which has a slider surface of a predetermined curvature, is supported by an arm through a spring and is pushed onto the magnetic disk surface with the lubricant layer formed thereon, then with rotation of the magnetic disk, the lubricant layer liquefies and information is recorded or read out in a contacted state of the head and the disk. The distance between the magnetic head and the disk surface can be shortened to a great extent and the recording density of the magnetic disk can be increased remarkably, thereby permitting a larger capacity of the magnetic disk unit.

摘要翻译： 本发明涉及具有高存储容量的磁盘单元，其中磁头和在其表面上形成有润滑层的磁盘被允许在相互接触的状态下执行相对运动以写入和读出信息 高记录密度，并且本发明还涉及适用于磁头在磁盘表面上的连续滑动运动的磁头的形状和材料以及形成在磁盘表面上的润滑剂层。 根据本发明，具有预定曲率的滑块表面的磁头通过弹簧由臂支撑，并且在其上形成润滑剂层的同时被推到磁盘表面上，然后随着磁盘的旋转 润滑剂层液化并且在头部和盘的接触状态下记录或读出信息。 磁头和盘表面之间的距离可以被很大程度地缩短，从而可以显着地提高磁盘的记录密度，从而允许磁盘单元的容量更大。

公开(公告)号：US20120012425A1

公开(公告)日：2012-01-19

申请号：US13145827

申请日：2009-12-25

申请人： Isao Hayase ,  Kenji Hiraku ,  Hiroyuki Yamada ,  Masami Ochiai ,  Yuichi Yanagi ,  Nobuya Sekiyama

发明人： Isao Hayase ,  Kenji Hiraku ,  Hiroyuki Yamada ,  Masami Ochiai ,  Yuichi Yanagi ,  Nobuya Sekiyama

IPC分类号： B66F9/20 ,  F16H25/12

CPC分类号： B66F9/08 ,  B66F9/24 ,  F16H25/2261 ,  Y10T74/18576

摘要： This invention includes a screw shaft 1, a screw thread 10 formed spirally on an outer periphery of the screw shaft, a plurality of rollers 2 arranged along the thread so as to be spaced from one another in a circumferential direction of the screw shaft to roll along a flank surface la of the screw thread via a rolling surface 2c, and a roller cage 3 accommodating the plurality of rollers so as to rotate each of the rollers on respective axes and constructed so that when the rollers are made to roll, the cage moves about the screw shaft in relative form with respect thereto; wherein the rollers each have a central axis 26 fixedly positioned with respect to the roller cage so that the roller takes a posture making a line imaginarily extended from the central axis intersect the screw shaft, and so that the central axis is inclined towards the flank surface with which the rolling surface comes into contact. Thus, a linear actuator is provided that has high motive power transmission efficiency and excellent durability since significant slipping between the rollers and the screw shaft is suppressed.

摘要翻译： 本发明包括螺杆轴1，在螺杆轴的外周螺旋地形成的螺纹10，多个辊2，沿着螺纹布置成沿着螺杆轴的圆周方向彼此间隔开以滚动 经由滚动表面2c沿着螺纹的侧面1a和滚子保持架3，容纳多个滚子以使各滚子在各轴线上旋转，并被构造成使得当滚筒滚动时，保持架 以相对于其的相对形式绕螺杆轴移动; 其特征在于，所述辊各自具有相对于所述滚子保持架固定地定位的中心轴线26，使得所述滚轮采取使从所述中心轴线观察地延伸的线与所述螺杆轴相交的姿态，并且使得所述中心轴线朝向所述侧面 滚动面与其接触。 因此，提供了一种线性致动器，其具有高的动力传递效率和优异的耐久性，因为抑制了辊和螺杆轴之间的显着滑动。