HARD DISK DRIVE
    2.
    发明申请
    HARD DISK DRIVE 失效
    硬盘驱动器

    公开(公告)号:US20080013217A1

    公开(公告)日:2008-01-17

    申请号:US11768466

    申请日:2007-06-26

    Applicant: Jae-Suk LEE

    Inventor: Jae-Suk LEE

    CPC classification number: G11B5/4813 G11B25/043 G11B33/1406

    Abstract: A hard disk drive includes a voice coil motor yoke, a base to support the voice coil motor yoke, and formed of a material different from that of the voice coil motor yoke, and a thermal deformation prevention unit which is formed of a material that is substantially the same as that of the voice coil motor yoke, provided between the voice coil motor yoke and the base, and thereby preventing mechanical deformation due to different thermal expansion coefficients between the voice coil motor yoke and the base.

    Abstract translation: 硬盘驱动器包括音圈马达轭,用于支撑音圈马达轭的基座,并且由与音圈马达轭不同的材料形成的热变形防止单元,该热变形防止单元由材料形成 基本上与设置在音圈马达轭和底座之间的音圈马达轭的基本相同,从而防止由于音圈马达轭和基座之间的热膨胀系数的不同引起的机械变形。

    TERPHENYL DIHYDROXY MONOMERS CONTAINING FLUORINE AND FLUORINATED POLY(ARYLENE ETHER SULFIDE)S
    4.
    发明申请
    TERPHENYL DIHYDROXY MONOMERS CONTAINING FLUORINE AND FLUORINATED POLY(ARYLENE ETHER SULFIDE)S 失效
    含有氟和氟化物(亚磺酸)的二苯基二羟基单体

    公开(公告)号:US20090259017A1

    公开(公告)日:2009-10-15

    申请号:US12435112

    申请日:2009-05-04

    CPC classification number: C08G65/4025

    Abstract: The present invention relates to terphenyl dihydroxy monomers containing fluorine and fluorinated poly(arylene ether sulfide)s prepared by using the monomers, more particularly, terphenyl dihydroxy monomers containing both two hydroxy functional groups and fluorine and fluorinated poly(arylene ether sulfide)s prepared by an aromatic nucleophilic substitution polymerization (SNAr) using the monomers, which are thus useful as optical materials in the field of information telecommunications.

    Abstract translation: 本发明涉及通过使用单体制备的含氟和氟化聚(亚芳基醚硫醚)的三联苯基二羟基单体,更具体地说,涉及含有两个羟基官能团的三联苯基二羟基单体和氟和氟化聚(亚芳基醚硫醚),其由 使用单体的芳族亲核取代聚合(SNAr),因此可用作信息通信领域的光学材料。

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