Cyclohexane derivative
    115.
    发明授权
    Cyclohexane derivative 失效
    环己烷衍生物

    公开(公告)号:US4853152A

    公开(公告)日:1989-08-01

    申请号:US268184

    申请日:1988-11-07

    申请人: Yasuyuki Goto

    发明人: Yasuyuki Goto

    摘要: A compound having a relatively low viscosity, a broad nematic phase temperature range, a good compatibility with other liquid crystal components at low temperatures and a positive large dielectric anisotropy value, and a liquid crystal composition having a low viscosity and capable of realizing a low driving threshold voltage of display elements are provided, which compound is a cyclohexane derivative expressed by the formula ##STR1## wherein R is 1-10C alkyl group, l is 1 or 2, m is 0 or 1 and l+m=2.

    Recording media with recording layer of two metal layers sandwiching
sublimable organic substance layer
    120.
    发明授权
    Recording media with recording layer of two metal layers sandwiching sublimable organic substance layer 失效
    记录介质具有夹层可升华有机物质层的两层金属层的记录层

    公开(公告)号:US4650742A

    公开(公告)日:1987-03-17

    申请号:US839827

    申请日:1986-03-13

    摘要: A recording medium suitable for writing and reading out information by irradiating a photobeam onto a recording layer at a relatively low power, includes a light transmissible substrate, a light transmissible subbing layer, and a recording layer. The recording layer includes a radiation transmissible substrate, a radiation transmissible subbing layer composed of an inorganic material laminated on the substrate, and a recording layer composed of a sublimable organic substance layer laminated on the subbing layer and a metal layer laminated on the organic layer. Alternatively, the recording layer can include a radiation transmissible substrate, a radiation transmissible subbing layer composed of an inorganic material laminated on the substrate, and a recording layer the composed of a first metal layer laminated on the subbing layer, a sublimable organic substance layer laminated on the first metal layer, and a second metal layer laminated on the sublimable organic substance layer the recording medium has a high photosensitivity and can record information at a high quality (i.e., a high signal-to-noise ratio).

    摘要翻译: 适用于通过以较低功率将光束照射到记录层上来写入和读出信息的记录介质包括透光衬底,透光衬底层和记录层。 记录层包括辐射透射性基板,由层叠在基板上的无机材料构成的辐射透射性底层和由层叠在底层上的升华性有机物质层构成的记录层和层叠在有机层上的金属层。 或者,记录层可以包括辐射透射衬底,由层叠在衬底上的无机材料构成的辐射透射底层和由层压在底层上的第一金属层构成的记录层,层压的升华性有机物质层 在第一金属层上和层叠在升华性有机物质层上的第二金属层,记录介质具有高的光敏性并且可以以高质量(即,高的信噪比)记录信息。