Recording and reproducing apparatus
    5.
    发明授权
    Recording and reproducing apparatus 失效
    记录和再现设备

    公开(公告)号:US08089847B2

    公开(公告)日:2012-01-03

    申请号:US12550366

    申请日:2009-08-29

    IPC分类号: G11B7/00

    摘要: The recording and reproducing apparatus has rotary drive unit (a motor) that rotationally drives a multilayer recordable recording medium 1; a reference-light-side recording and reproducing lens 6 and a recording-light-side recording and reproducing lens 7 that are disposed oppositely to the recording medium 1 which is rotationally driven by the rotary drive unit, an address detection lens 5 that is disposed opposite the recording medium 1 and that is provided separately from the recording and reproducing lenses 6 and 7; a light source 9 for recording and reproducing purpose that supplies recording reproduction light to the recording and reproducing lenses 6 and 7; and the address light source 9 that supplies address light to the address detection lens 5. The apparatus is configured in such a way that light whose center axis portion is optically hollow is supplied from the reference-light-side recording and reproducing lens 6 to the recording medium 1 during reproducing operation.

    摘要翻译: 记录和再现装置具有旋转地驱动多层记录介质1的旋转驱动单元(马达); 与由旋转驱动单元旋转驱动的记录介质1相对设置的基准光侧记录和再现透镜6和记录光侧记录和再现透镜7,设置的地址检测透镜5 与记录介质1相对并且与记录和再现透镜6和7分开设置; 用于将记录再现光提供给记录和再现透镜6和7的用于记录和再现目的的光源9; 以及将地址光源9提供给地址检测透镜5的地址光源9.该装置被配置为使得中心轴部分是光学中空的光从参考光侧记录和再现透镜6提供给 记录媒体1。

    Catalytic process for copolymerizing epoxy compounds with carbon dioxide
    6.
    发明授权
    Catalytic process for copolymerizing epoxy compounds with carbon dioxide 失效
    环氧化合物与二氧化碳共聚的催化方法

    公开(公告)号:US3953383A

    公开(公告)日:1976-04-27

    申请号:US523160

    申请日:1974-11-12

    IPC分类号: C08G64/02 C08G64/34 C08G63/62

    CPC分类号: C08G64/0208 C08G64/34

    摘要: A catalyst composition and a process for preparing same comprising the reaction product of (a) an organo-metallic compound having the general formula R'nM, wherein n is an integer, at least one R' is an alkyl group, an alicyclic group, or halogen, hydroxy or alkoxy derivatives thereof, or hydrogen, the remaining R' groups are alkyl groups, alicyclic groups, alkaryl groups, aralkyl groups, aryl groups, or halogen, hydroxy or alkoxy derivatives thereof, and M is a metal of Group II or Group III of the periodic Table, (b) a co-catalyst component which is sulfur or a compound containing active hydrogen atoms, and (c) carbon dioxide. The catalyst composition is used in preparing copolymers of epoxy compounds with carbon dioxide.

    摘要翻译: 一种催化剂组合物及其制备方法,包括(a)具有通式R'nM的有机金属化合物的反应产物,其中n为整数,至少一个R'为烷基,脂环基, 或卤素,其羟基或烷氧基衍生物或氢,其余的R'基团是烷基,脂环基,烷芳基,芳烷基,芳基或卤素,其羟基或烷氧基衍生物,M是第II族金属 或周期表的III族,(b)作为硫或含有活性氢原子的化合物的助催化剂组分,和(c)二氧化碳。 催化剂组合物用于制备环氧化合物与二氧化碳的共聚物。

    Record medium, optical disk unit using it, and recording method
    7.
    发明授权
    Record medium, optical disk unit using it, and recording method 失效
    记录介质,使用它的光盘单元和记录方法

    公开(公告)号:US08139461B2

    公开(公告)日:2012-03-20

    申请号:US12631638

    申请日:2009-12-04

    IPC分类号: G11B7/00

    摘要: A plate body 2, multiple hologram layers 3 are provided in the thickness direction of the plate body 2, and at least one of the multiple hologram layers 3 is formed of spirally continuous hologram bands 4. Erasure areas 4A and 4B and non-erasure areas 4C and 4D of the hologram band 4 are provided in the length direction of the hologram band 4. Non-erasure areas 4E and 4F of the hologram band 4 are formed on both sides in the direction orthogonal to the length direction of the hologram band 4 in the erasure areas 4A and 4B.

    摘要翻译: 板体2在板体2的厚度方向上设置有多个全息图层3,多个全息图层3中的至少一个由螺旋状连续的全息图波段4形成。擦除区域4A,4B以及非擦除区域 全息带4的4C,4D设置在全息带4的长度方向上。全息条带4的非擦除区域4E和4F在与全息条带4的长度方向正交的方向的两侧形成 在擦除区域4A和4B中。