Fluid Dynamic Pressure Bearing, Spindle Motor and Storage Disk Drive Bearing and a Method of Manufacturing Thereof
    62.
    发明申请
    Fluid Dynamic Pressure Bearing, Spindle Motor and Storage Disk Drive Bearing and a Method of Manufacturing Thereof 有权
    流体动压轴承,主轴电机和存储盘驱动轴承及其制造方法

    公开(公告)号:US20080030895A1

    公开(公告)日:2008-02-07

    申请号:US11596417

    申请日:2005-05-13

    IPC分类号: G11B7/00

    摘要: A fluid dynamic bearing having a shaft (12) and a bearing sleeve (11) rotatably supported relative to each other. At least one of the shaft and the bearing sleeve is made of steel or stainless steel made of by weight C: 0.6˜1.20%; Si: 1.0 or less; Mn: 1.0% or less; Cr: 10.5˜18.0%; Mo: 1.0% or less; S.: 0.03% or less; and Fe. The dynamic pressure bearing surface (20) is formed by ridges (22) remaining in between multiple dynamic pressure grooves (21) formed by electrochemical machining.

    摘要翻译: 具有轴(12)和轴承套(11)的流体动力轴承相对于彼此可旋转地支撑。 轴和轴承套中的至少一个由钢或不锈钢制成,重量C:0.6〜1.20%; Si:1.0以下; Mn:1.0%以下; Cr:10.5〜18.0%; Mo:1.0%以下; S:0.03%以下; 和Fe。 动压承受面(20)由残留在通过电化学加工形成的多个动压槽(21)之间的脊(22)形成。

    Method and device for forming a dynamic pressure-generating groove in a fluid dynamic pressure bearing
    63.
    发明授权
    Method and device for forming a dynamic pressure-generating groove in a fluid dynamic pressure bearing 有权
    在流体动压轴承中形成动态压力产生槽的方法和装置

    公开(公告)号:US07160431B2

    公开(公告)日:2007-01-09

    申请号:US10636150

    申请日:2003-08-07

    摘要: A method and apparatus for forming a fluid dynamic pressure groove in a fluid dynamic pressure bearing is provided. The method is accomplished by initially positioning and securing multiple workpieces to be machined to their respective machining devices. An electrochemical dissolving effect is imparted to each target surface of the multiple workpieces and then at least one fluid dynamic pressure groove is formed on each target surface of the multiple workpieces. Each groove may have a specified shape, dimension and surface condition. An electrolyte is directed from a common electrolyte tank to each of the machining devices used on the multiple workpieces.

    摘要翻译: 提供了一种在流体动压轴承中形成流体动压槽的方法和装置。 该方法通过首先将要加工的多个工件定位并固定到其各自的加工装置来实现。 对多个工件的每个目标表面施加电化学溶解效果,然后在多个工件的每个目标表面上形成至少一个流体动压槽。 每个槽可以具有指定的形状,尺寸和表面状态。 电解液从共同的电解液罐引导到在多个工件上使用的每个加工装置。

    Semiconductor device and a disk drive apparatus employing such a semiconductor device
    64.
    发明授权
    Semiconductor device and a disk drive apparatus employing such a semiconductor device 失效
    半导体装置和使用这种半导体装置的盘驱动装置

    公开(公告)号:US07113357B2

    公开(公告)日:2006-09-26

    申请号:US11033309

    申请日:2005-01-12

    申请人: Hiroshi Yoshikawa

    发明人: Hiroshi Yoshikawa

    IPC分类号: G11B5/09

    摘要: When a circuit that is likely to cause noise is enabled, a control circuit turns on a switch so that an inverter will be formed by one P-channel MOSFET and two parallel-connected N-channel MOSFETs. This helps enhance the current capacity of the inverter on its N-channel MOSFET side, and thereby lower the threshold voltage of the inverter.

    摘要翻译: 当可能导致噪声的电路被使能时,控制电路接通开关,使得反相器将由一个P沟道MOSFET和两个并联的N沟道MOSFET形成。 这有助于提高逆变器在其N沟道MOSFET侧的电流容量,从而降低逆变器的阈值电压。

    Electro-magnetic relay
    69.
    发明授权
    Electro-magnetic relay 失效
    电磁继电器

    公开(公告)号:US4914411A

    公开(公告)日:1990-04-03

    申请号:US295704

    申请日:1989-01-09

    IPC分类号: H01H50/04

    CPC分类号: H01H50/042

    摘要: The electro-magnet relay of the present invention utilizes an iron core and an armature both formed as flat plates stacked together. Further, a stationary leaf spring and a moveable leaf spring are provided in the middle section of the iron core having two legs and being shaped as an inverted U. The armature is supported in a hole located in the insulating substrate and may swing to a degree determined by a striking piece formed on the armature. Coil terminals and contact terminals protruding from the bottom of the insulating substrate are arranged in a single line in the electro-magnetic relay of the present invention and may be installed on a high density printed circuit board.

    摘要翻译: 本发明的电磁继电器利用铁芯和电枢,两者均形成为平板堆叠在一起。 此外,在具有两个腿的铁芯的中间部分中设置有固定的板簧和可动的板簧,并且成形为倒U形。电枢被支撑在位于绝缘衬底中的孔中,并且可以摆动到一定程度 由形成在电枢上的撞击件确定。 从绝缘基板的底部突出的线圈端子和接触端子以本发明的电磁继电器为单线布置,并且可以安装在高密度印刷电路板上。

    Automatic belt tensioner
    70.
    发明授权
    Automatic belt tensioner 失效
    自动皮带张紧器

    公开(公告)号:US4747811A

    公开(公告)日:1988-05-31

    申请号:US006503

    申请日:1987-01-21

    IPC分类号: F16H7/08 F16H7/12

    摘要: A belt tensioner has a shaft having an oil reservoir in a lower portion thereof and having an external thread and rotatably mounted in a body, a torsion spring provided between the body and the shaft so as to urge the shaft in a rotational direction, and a cylindrical rod having an internal thread engaged with the external thread of the shaft. A lower end of the rod being projected from the body so as to be operatively connected to a tension pulley for a belt. The torsion spring and both the threads are arranged to project rod by the rotation of the shaft urged by the torsion spring. An oil passage is provided in the shaft so as to communicate the oil reservoir with the bore above the internal thread of the rod.

    摘要翻译: 皮带张紧器具有在其下部具有储油器并具有外螺纹并且可旋转地安装在主体中的轴,设置在主体和轴之间的扭转弹簧,以沿轴向推动轴,并且 具有与轴的外螺纹接合的内螺纹的圆柱形杆。 杆的下端从主体突出以便可操作地连接到用于皮带的张力皮带轮。 扭簧和两个螺纹被布置成通过由扭转弹簧推动的轴的旋转来突出杆。 在轴中设置有油通道,以使储油器与杆的内螺纹上方的孔连通。