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公开(公告)号：US5486967A
公开(公告)日：1996-01-23
申请号：US212120
申请日：1994-03-14
申请人： Yoichiro Tanaka , Kazushi Tanimoto , Hiroshi Ohashi , Takashi Hikosaka , Yasuo Ohtsubo , Shigeru Hoshina
发明人： Yoichiro Tanaka , Kazushi Tanimoto , Hiroshi Ohashi , Takashi Hikosaka , Yasuo Ohtsubo , Shigeru Hoshina
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/012 , G11B5/10 , G11B5/1278 , G11B5/39 , G11B5/3903 , G11B5/3919 , G11B5/58 , G11B2005/0029 , G11B2005/3996
摘要： According to the present invention, there is provided a magnetic disk memory system. An embodiment of this system comprises a magnetic disk of a perpendicular recording type, including a soft magnetic backing layer and a magnetic recording layer of a perpendicular magnetic anisotropy formed on the backing layer, and a magnetic head for writing or reading of data with respect to the magnetic disk, wherein the magnetic head comprises (a) a pair of main magnetic poles each of which made of a material having a high magnetic permeability, one end of the each pole being located so as to face the magnetic disk surface, (b) a non-magnetic interlayer provided between two main magnetic poles of the pair, (c) a recording coil disposed so as to generate a magnetic flux passing through the magnetic disk via the main magnetic poles, and (d) an MR element provided via an insulation layer on the other ends of the pair of main magnetic poles, one MR element having a film surface parallel to end surfaces of the other ends of the main magnetic poles, and being magnetically coupled with the pair of main magnetic poles.
摘要翻译： 根据本发明，提供了一种磁盘存储系统。 该系统的一个实施例包括垂直记录类型的磁盘，包括形成在背衬层上的软磁背衬层和垂直磁各向异性的磁记录层，以及用于写入或读取相对于 所述磁头包括（a）一对主磁极，每个主磁极由具有高磁导率的材料制成，每个磁极的一端被定位成面对磁盘表面，（b ）设置在该对的两个主磁极之间的非磁性中间层，（c）设置成经由主磁极产生穿过磁盘的磁通的记录线圈，以及（d）经由 在一对主磁极的另一端上的绝缘层，一个MR元件，其膜表面平行于主磁极的另一端的端面，并与t磁性耦合 他的一对主磁极。
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公开(公告)号：US6021024A
公开(公告)日：2000-02-01
申请号：US292214
申请日：1994-08-19
CPC分类号： G11B5/6005 , G11B5/012 , G11B5/4886
摘要： A magnetic disk drive for carrying out reading/writing of information to/from a magnetic disk having a plurality of tracks including an innermost circumference track and an outermost circumference track. The disk drive includes a rotary actuator and a magnetic head mounted on a magnetic head slider which has separate writing and reading elements. The elements have a magnetic gap for reading and writing the information on a magnetic disk. A rotary actuator arm has one end connected to a rotary actuator and the other end connected to the magnetic head slider. The head slider has an inflow end and an outflow end for the fluid flow generated by the rotation of the disk and at least one bearing which generates a dynamic pressure by the fluid flow. The head is provided close to the outflow. A skew angle created between the magnetic gap length direction and the rotating direction of the disk is substantially constant between the innermost and the outermost tracks. The bearing is arranged at a given angle with respect to the rotating direction so that the outflow end is located on the outer circumferential side of the magnetic disk from the inflow end.
摘要翻译： 一种磁盘驱动器，用于对具有包括最内圆周轨道和最外圆周轨道的多个轨道的磁盘执行信息的读/写。 磁盘驱动器包括旋转致动器和安装在具有单独的写入和读取元件的磁头滑块上的磁头。 这些元件具有用于在磁盘上读取和写入信息的磁隙。 旋转致动器臂的一端连接到旋转致动器，另一端连接到磁头滑块。 磁头滑块具有用于由盘的旋转产生的流体流的流入端和流出端，以及由流体流产生动态压力的至少一个轴承。 头部靠近流出口提供。 在磁隙长度方向和盘的旋转方向之间产生的倾斜角度在最内侧轨道和最外侧轨道之间基本恒定。 轴承相对于旋转方向以给定的角度布置，使得流出端从流入端位于磁盘的外周侧。
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3.发明授权Recording/reproducing apparatus with coarse and fine head positioning actuators and an elastic head gimbal 失效具有粗和细头定位致动器和弹性头万向架的记录/再现装置
公开(公告)号：US5745319A
公开(公告)日：1998-04-28
申请号：US429575
申请日：1995-04-27
申请人： Shigeru Takekado , Yasuo Ohtsubo
发明人： Shigeru Takekado , Yasuo Ohtsubo
CPC分类号： G11B5/5521 , G11B5/4813 , G11B5/4833 , G11B5/5552
摘要： A recording/reproducing apparatus according to the invention comprises a recording medium, a recording/reproducing head for reading and writing information on and from the recording medium, a suspension section attached to the recording/reproducing head, an arm attached to the suspension, first driving means provided between the recording/reproducing head and the suspension section for finely displacing the recording/reproducing head to the suspension, and second driving means for driving the arm to move the recording/reproducing head to a predetermined position on the recording medium.
摘要翻译： 根据本发明的记录/再现装置包括记录介质，用于在记录介质上读取信息的记录/再现头，附接到记录/再现头的悬挂部分，附接到悬架的臂，第一 驱动装置，设置在记录/再现头和悬挂部分之间，用于将记录/再现头精细地移位到悬架;以及第二驱动装置，用于驱动臂将记录/再现头移动到记录介质上的预定位置。
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4.发明授权
公开(公告)号：US5198934A
公开(公告)日：1993-03-30
申请号：US819675
申请日：1992-01-13
申请人： Masahiro Kubo , Yasuo Ohtsubo
发明人： Masahiro Kubo , Yasuo Ohtsubo
CPC分类号： G11B5/6005 , G11B5/012 , G11B5/4886 , G11B5/58
摘要： A slider of a magnetic disk device has a main body and a protecting layer coated on the main body. The protecting layer has first flat surface which faces the magnetic recording surface of the rotatable disk and which extends in a tangential direction of the disk when the slider is located adjacent to the magnetic recording surface of the disk. The contact region of the first surface is in contact with the magnetic recording surface of the rotatable disk. Thus, a frictional force produced between the magnetic recording surface and the first flat surface is reduced, and the damage to the magnetic recording surface can be prevented. According to the present invention, the damage to the magnetic recording surface of the disk can be prevented, and the variation in distance between the magnetic recording surface and the magnetic head can be remarkably reduced. As a result, the recording density of data recorded on the magnetic disk can be increased.
摘要翻译： 磁盘装置的滑块具有主体和涂覆在主体上的保护层。 保护层具有面向可旋转盘的磁记录表面的第一平坦表面，并且当滑块位于与磁盘的磁记录表面相邻时，该第一平面在盘的切线方向上延伸。 第一表面的接触区域与可旋转盘的磁记录表面接触。 因此，在磁记录表面和第一平面之间产生的摩擦力减小，并且可以防止对磁记录表面的损坏。 根据本发明，可以防止对盘的磁记录表面的损坏，并且可以显着地减小磁记录表面和磁头之间的距离的变化。 结果，可以增加记录在磁盘上的数据的记录密度。
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5.发明授权Magnetic disk apparatus having a structure suitable for measuring a minute flying weight 失效具有适于测量微小飞行重量的结构的磁盘装置
公开(公告)号：US4866553A
公开(公告)日：1989-09-12
申请号：US212108
申请日：1988-06-28
申请人： Masahiro Kubo , Yasuo Ohtsubo
发明人： Masahiro Kubo , Yasuo Ohtsubo
CPC分类号： G11B5/6005 , G11B33/10
摘要： In a magnetic disk apparatus according to the present invention, a slider has a sliding surface and a reflecting surface. The height of the reflecting surface from the magnetic disk is greater than that of the sliding surface from the disk, when the slider flies above the disk, so that there exists a minute difference in level between the sliding surface and the reflecting surface. The flying height of the sliding surface of the slider from the magnetic disk is measured. When the magnetic disk is rotated, the slider flies from the disk. In this state, a reference flying height, i.e., the flying height of the reflecting surface from the magnetic disk is measured by the optical interference process. Then, the minute difference is substracted from the measured reference flying height to obtain the flying height of the sliding surface of the slider from the magnetic disk. According to the invention, even if the minimum flying height of the sliding surface of the slider is shorter than 0.1 micrometer, the measurement can be effected by the optical interference process. In general, moreover, a minute flying height between a fixed datum plane and an object flying above the datum plane can be measured accurately.
摘要翻译： 在根据本发明的磁盘装置中，滑块具有滑动面和反射面。 当滑块在盘上方飞行时，来自磁盘的反射表面的高度大于来自盘的滑动表面的高度，使得在滑动表面和反射表面之间存在微小的水平差。 测量滑块从磁盘滑动表面的飞行高度。 当磁盘旋转时，滑块从盘上飞出。 在该状态下，通过光学干涉处理来测量参考飞行高度，即来自磁盘的反射面的飞行高度。 然后，从测量的基准飞行高度减去微小差异，以从磁盘获得滑块的滑动表面的飞行高度。 根据本发明，即使滑块的滑动面的最小飞行高度小于0.1微米，也可以通过光学干涉处理进行测量。 另外，通常，能够精确地测量固定基准平面与飞越基准平面的物体之间的微小的飞行高度。
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公开(公告)号：US4646180A
公开(公告)日：1987-02-24
申请号：US532101
申请日：1983-09-14
申请人： Yasuo Ohtsubo
发明人： Yasuo Ohtsubo
CPC分类号： G11B5/6005
摘要： A slider for a magnetic head assembly is formed with the bottom surfaces of at least two outside elements forming an air bearing surface, and with grooves provided at both ends forming pressure-raising mechanisms. The grooves are V-shaped and preferably converge in the direction of air flow. A central pressure reducing V-shaped groove converging in the opposite direction may be provided.
摘要翻译： 用于磁头组件的滑块形成有至少两个外部元件的底表面形成空气轴承表面，并且在两端设置有形成压力机构的凹槽。 槽是V形的并且优选地在空气流动的方向上会聚。 可以提供沿相反方向收敛的中心减压V形槽。
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7.发明授权Magnetic head device used with a rigid magnetic disk providing a constant distance between the magnetic disk and a magnetic gap of the magnetic head device 失效磁头装置与刚性磁盘一起使用，其在磁盘和磁头装置的磁隙之间提供恒定的距离
公开(公告)号：US4901185A
公开(公告)日：1990-02-13
申请号：US153480
申请日：1988-02-02
申请人： Masahiro Kubo , Yasuo Ohtsubo
发明人： Masahiro Kubo , Yasuo Ohtsubo
CPC分类号： G11B5/6005 , G11B5/012 , G11B5/4886 , G11B5/58
摘要： A magnetic disk device includes a rigid magnetic disk having a magnetic recording surface, a slider located on one side of the magnetic recording surface of the magnetic disk and adapted to be radially movable on the magnetic disk, and a magnetic head. The slider includes a contact surface formed on a surface portion opposite the magnetic disk and adapted to contact the magnetic disk.
摘要翻译： 磁盘装置包括具有磁记录表面的刚性磁盘，位于磁盘的磁记录表面的一侧上并适于在磁盘上可径向移动的滑块和磁头。 滑块包括形成在与磁盘相对的表面部分上并且适于接触磁盘的接触表面。
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公开(公告)号：US4715247A
公开(公告)日：1987-12-29
申请号：US911450
申请日：1986-09-25
申请人： Toshio Honda , Toshiro Ohhashi , Yasuo Ohtsubo
发明人： Toshio Honda , Toshiro Ohhashi , Yasuo Ohtsubo
CPC分类号： F16C33/414 , F16H49/001 , F01L2001/3521 , Y10T74/19
摘要： This invention relates to reduction in frictional torque of a harmonic drive type transmission apparatus having a circular spline, a flexspline, and a wave generator. A wave generator bearing of the wave generator has a retainer for holding a number of balls which roll between the inner and outer races to be in contact with an inner race and an outer race and to be separated from each other in the circumferential direction. The ball retainer has a number of radial pockets for storing the balls. Each pocket is formed into a shape forming a narrow (in the circumferential direction) opening portion at the inner race side and a wide (in the circumferential direction) opening portion at the outer race side. The balls are in contact with the opening portion at the inner race side in the pockets at the minor axis positions of a drive cam, and the balls are in contact with substantially the central portion of the pocket inner surface at the major axis positions of the cam.
摘要翻译： 本发明涉及具有圆形花键，柔性线和波发生器的谐波驱动型传动装置的摩擦转矩的减小。 波发生器的波发生器轴承具有用于保持在内圈和外座圈之间滚动以与内座圈和外座圈接触并在圆周方向上彼此分离的多个滚珠的保持器。 球保持器具有用于存放球的多个径向袋。 每个袋形成在内圈侧的狭窄（在周向）开口部分和在外圈侧的宽（在周向）开口部分上形成的形状。 滚珠与驱动凸轮的短轴位置处的凹部内圈侧的开口部接触，并且滚珠与凹部内表面的大致中心部分在主轴位置处接触 凸轮
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