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6 条记录 (耗时 0.017 秒)

    Process for producing aqueous emulsions of vinyl chloride/vinyl acetate/ethylene terpolymers
    1.
    发明授权
    Process for producing aqueous emulsions of vinyl chloride/vinyl acetate/ethylene terpolymers 失效
    制备氯乙烯/乙酸乙烯酯/乙烯三元共聚物的水性乳液的方法

    公开(公告)号：US4123405A

    公开(公告)日：1978-10-31

    申请号：US805029

    申请日：1977-06-09

    申请人： Takeo Oyamada ,  Kazuhisa Satoh ,  Choji Tomizawa ,  Takamasa Ishihara

    发明人： Takeo Oyamada ,  Kazuhisa Satoh ,  Choji Tomizawa ,  Takamasa Ishihara

    IPC分类号： C08F214/00 ,  C08F2/00 ,  C08F2/22 ,  C08F6/00 ,  C08F6/06 ,  C08F14/00 ,  C08F210/00 ,  C08F214/06 ,  C08F218/00 ,  C08F218/02 ,  C08F218/08 ,  C08F291/00 ,  C08L33/00

    CPC分类号： C08F214/06 ,  C08F291/00

    摘要： In the process for producing the aqueous emulsion of vinyl chloride/vinyl acetate/ethylene terpolymer by polymerizing vinyl chloride, vinyl acetate and ethylene in an aqueous dispersion system under ethylene pressure in the presence of an emulsifier and/or protective colloid using a radical initiator, the improvement which comprises adding vinyl chloride and vinyl acetate to said aqueous dispersion system at substantially fixed rates while maintaining a required amount of unreacted vinyl acetate in the system, and, after completion of addition of vinyl chloride, adding additional vinyl acetate of 3 to 20% by weight based on the total amount of vinyl acetate which has been added until that time and continuing the polymerization until the concentration of vinyl acetate in the system is decreased to 1% by weight or less, wherein the volume of the aqueous dispersion system is at least 50% by volume based on the volume of the reactor when addition of the additional vinyl acetate is completed. By this process, the amount of unreacted vinyl chloride in said aqueous emulsion can be decreased to a large extent.

    摘要翻译： 在使用自由基引发剂的乳化剂和/或保护胶体的存在下，在乙烯压力下，在水分散系统中聚合氯乙烯，乙酸乙烯酯和乙烯的氯乙烯/乙酸乙烯酯/乙烯三元共聚物的水性乳液的制备方法中， 其改进包括以基本上固定的速率将氯乙烯和乙酸乙烯酯加入到所述水性分散体系中，同时在系统中保持所需量的未反应的乙酸乙烯酯，并且在完成加入氯乙烯之后，加入3至20的另外的乙酸乙烯酯 基于在该时间之前加入的乙酸乙烯酯的总量，继续聚合直到体系中乙酸乙烯酯的浓度降至1重量％以下为止，其中水分散体系的体积为 当添加额外的乙酸乙烯酯完全时，基于反应器体积的至少50体积％ d。 通过该方法，可以在很大程度上降低所述水性乳液中未反应的氯乙烯的量。

    Mobile telephone set with automatic sound level control
    4.
    发明授权
    Mobile telephone set with automatic sound level control 失效
    手机设有自动声级控制

    公开(公告)号：US6070088A

    公开(公告)日：2000-05-30

    申请号：US863538

    申请日：1997-05-27

    申请人： Kazuhisa Satoh

    发明人： Kazuhisa Satoh

    IPC分类号： H04B1/40 ,  H03G3/00 ,  H04B7/26 ,  H04M1/00 ,  H04M1/60 ,  H01S4/00 ,  H04L27/04

    CPC分类号： H04M1/6008 ,  H03G3/001

    摘要： In a portable telephone set having an audio-frequency amplifier (12) for amplifying a sound signal from a microphone (11) and a codec (13),for digitizing and coding the sound signal into a digital sound signal which is transmitted therefrom, a level of said sound signal is monitored (17) to produce a detected level and is averaged at a timing (18) and compared with level data stored in a memory (15), and an amplification control signal is produced. At least one of the audio-amplifier (12) and said codec (13) is controlled its amplification degree in response to the amplification control signal.

    摘要翻译： 在具有用于放大来自麦克风（11）和编解码器（13）的声音信号的音频放大器（12）的便携式电话机中，用于将声音信号数字化和编码成从其传输的数字声音信号， 监视所述声音信号的电平（17）以产生检测电平，并在定时（18）被平均，并与存储在存储器（15）中的电平数据进行比较，并产生放大控制信号。 响应于放大控制信号，音频放大器（12）和所述编解码器（13）中的至少一个被控制其放大度。

    Regular eight face polyhedral antenna element
    6.
    发明授权
    Regular eight face polyhedral antenna element 失效
    常规八面多面体天线元件

    公开(公告)号：US4030101A

    公开(公告)日：1977-06-14

    申请号：US667154

    申请日：1976-03-15

    申请人： Kazuhisa Satoh

    发明人： Kazuhisa Satoh

    IPC分类号： H01Q1/42 ,  H01Q9/28 ,  H01Q21/06 ,  H01Q1/36

    CPC分类号： H01Q21/06 ,  H01Q1/42 ,  H01Q9/28

    摘要： The antenna element, which is for use in television reception and the like, is manufactured from a single length of metallic bar or tubing which is bent to form the longitudinal edges of a regular eight face polyhedron, with the two ends of the length of metallic bar or tubing being bent outwardly parallel to each other at the bottom of the antenna element to constitute terminals. The antenna element has directional characteristics in four directions, in contrast to conventional antennas, such as dipole antennas or loop antennas, which have directional properties in only two directions, and can be miniaturized by utilizing known printed circuit manufacturing techniques. The antenna element has its best capacity when the length of each edge of the polyhedron is equal to one half the wavelength of an electromagnetic wave of a predetermined frequency. In order to avoid the antenna element having too great a length, and thus being disadvantageous from the standpoint of wind pressure or mounting, several antenna elements may be connected in series with each antenna element having the longitudinal edge of the polyhedron being equal to one half the selected wavelength divided by the number of antenna elements connected in series.

    摘要翻译： 用于电视接收等的天线元件由单一长度的金属棒或管制成，其被弯曲以形成规则的八面多面体的纵向边缘，其两端的金属长度 杆或管在天线元件的底部彼此平行地向外弯曲以构成端子。 与仅在两个方向上具有方向性的常规天线（例如偶极天线或环形天线）相反，天线元件在四个方向上具有方向特性，并且可以通过利用已知的印刷电路制造技术而使其小型化。 当多面体的每个边缘的长度等于预定频率的电磁波的波长的一半时，天线元件具有最佳的容量。 为了避免天线元件具有太大的长度，并且因此从风压或安装的观点来看是不利的，可以将几个天线元件与具有多面体的纵向边缘的每个天线元件串联连接，等于一半 所选择的波长除以串联连接的天线元件的数量。