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187 条记录 (耗时 0.052 秒)

    Disk drive including slider mover having low thermal coefficient of resistivity
    73.
    发明授权
    Disk drive including slider mover having low thermal coefficient of resistivity 有权
    包括具有低电阻热系数的滑动推动器的磁盘驱动器

    公开(公告)号：US07403356B1

    公开(公告)日：2008-07-22

    申请号：US11116730

    申请日：2005-04-28

    申请人： Michael Mallary ,  Yan Wu

    发明人： Michael Mallary ,  Yan Wu

    IPC分类号： G11B17/32

    CPC分类号： G11B5/582 ,  G11B5/3133 ,  G11B5/6064 ,  G11B5/607

    摘要： A disk drive includes a drive housing, a storage disk and a slider. The slider includes a head that magnetically interacts with the storage disk. Further, the slider includes a slider mover that moves a portion of the slider to adjust a head-to-disk spacing during operation of the disk drive. In one embodiment, the slider mover is formed from a material having a thermal coefficient of resistivity that is less than approximately 0.001/° C., such as a copper-manganese alloy, a copper-tin alloy or a gold alloy. The slider mover can be formed from a material having a negative thermal coefficient of resistivity. Further, the slider mover can be formed from a material having a resistivity that is less than approximately 15 microohm-centimeters. Additionally, the slider mover can be formed from a material having a melting point that is greater than approximately 750° C. The disk drive can include a drive circuitry and a lead that conducts electricity between the slider mover and the drive circuitry. The lead can be formed from substantially the same materials as the slider mover.

    摘要翻译： 磁盘驱动器包括驱动器壳体，存储盘和滑块。 滑块包括与存储盘磁性相互作用的磁头。 此外，滑块包括滑块移动器，其在磁盘驱动器的操作期间移动滑块的一部分以调节磁头到磁盘的间隔。 在一个实施例中，滑块移动器由具有小于约0.001 /℃的热电阻系数的材料形成，例如铜 - 锰合金，铜 - 锡合金或金合金。 滑动移动器可以由具有负热电阻系数的材料形成。 此外，滑块移动器可以由具有小于约15微欧姆厘米的电阻率的材料形成。 另外，滑块移动器可以由具有大于约750℃的熔点的材料形成。磁盘驱动器可以包括驱动电路和在滑块移动器和驱动电路之间传导电力的引线。 引线可以由与滑块移动器基本相同的材料形成。

    C-shaped magnetic resonance imaging system
    76.
    发明授权
    C-shaped magnetic resonance imaging system 失效
    C型磁共振成像系统

    公开(公告)号：US06842002B2

    公开(公告)日：2005-01-11

    申请号：US10181832

    申请日：2001-01-19

    申请人： Illich Cheng ,  Paul J. Jungwirth ,  Alan J. Otter ,  Yan Wu

    发明人： Illich Cheng ,  Paul J. Jungwirth ,  Alan J. Otter ,  Yan Wu

    IPC分类号： G01R33/38 ,  G01R33/383 ,  G01V3/00

    CPC分类号： G01R33/3806 ,  G01R33/383

    摘要： An open C magnet system for magnetic resonance imaging comprises circular NdFeB poles, a single piece yoke having beveled inside and outside faces between the vertical post section and the horizontal arms of the yoke, a necked-in mid-section of the vertical post, flat Nebdymium (NdFeB) corner plates in face to face relationship with the inside beveled faces between the vertical post and the horizontal arms.

    摘要翻译： 用于磁共振成像的开放式C磁体系统包括圆形NdFeB磁极，单件磁轭在垂直柱部分和轭的水平臂之间具有内侧和外侧的斜面，垂直柱的颈缩中间部分，平坦的 钕（钕铁硼）角板与垂直柱和水平臂之间的内侧倾斜面的面对面关系。