Electronic timepiece
    2.
    发明授权
    Electronic timepiece 失效
    电子钟表

    公开(公告)号:US4350961A

    公开(公告)日:1982-09-21

    申请号:US89462

    申请日:1979-10-30

    申请人: Ryo Toyokuni

    发明人: Ryo Toyokuni

    摘要: An electronic timepiece including an X-cut quartz crystal resonator and a capacitor to compensate the frequency-temperature characteristics of said quartz crystal resonator, wherein said capacitor comprises a plurality of ceramic capacitor elements having a different Temperature of Curie Point.

    摘要翻译: 一种包括X切割石英晶体谐振器和补偿所述石英晶体谐振器的频率 - 温度特性的电容器的电子钟表,其中所述电容器包括具有不同居里点温度的多个陶瓷电容器元件。

    Method of manufacturing calcium carbonate single crystal
    3.
    发明授权
    Method of manufacturing calcium carbonate single crystal 失效
    碳酸钙单晶的制造方法

    公开(公告)号:US4961823A

    公开(公告)日:1990-10-09

    申请号:US146294

    申请日:1988-01-20

    IPC分类号: C30B7/00

    CPC分类号: C30B7/00 C30B29/10 C30B7/005

    摘要: A starting material composed of calcium carbonate is dissolved in a nitrate aqueous solution containing either Ca(NO.sub.3).sub.2 or NH.sub.4 NO.sub.3 under application of heat and pressure. The starting material is hydrothermally synthesized within the nitrate aqueous solution to effect the rapid growth of calcium carbonate single crystal.

    摘要翻译: 碳酸钙组成的原料在热和压力的作用下溶解于含有Ca(NO 3)2或NH 4 NO 3的硝酸盐水溶液中。 将原料在硝酸盐水溶液中水热合成,以实现碳酸钙单晶的快速生长。