Method of producing reverse transcriptase
    2.
    发明授权
    Method of producing reverse transcriptase 失效
    逆转录酶的制备方法

    公开(公告)号:US4729955A

    公开(公告)日:1988-03-08

    申请号:US559383

    申请日:1983-12-08

    CPC分类号: C12N9/1276 Y10S435/948

    摘要: A method of producing reverse transcriptase, which comprises isolating a fraction containing retrovirus from a tissue culture fluid supernatant of retrovirus producing cells which are able to grow and propagate in vitro, treating said fraction at least once by sucrose density gradient centrifugation to thereby obtain a purified retrovirus, and extracting reverse transcriptase from said purified retrovirus.

    摘要翻译: 一种生产逆转录酶的方法,其包括从能够在体外生长和繁殖的反转录病毒产生细胞的组织培养液上清液中分离含有逆转录病毒的级分,通过蔗糖密度梯度离心处理所述级分至少一次,从而获得纯化的 逆转录病毒,并从所述纯化的逆转录病毒中提取逆转录酶。

    Drive-in theater audio system
    3.
    发明授权
    Drive-in theater audio system 失效
    驱动剧院音响系统

    公开(公告)号:US4209663A

    公开(公告)日:1980-06-24

    申请号:US893884

    申请日:1978-04-06

    申请人: Kiichi Sekiguchi

    发明人: Kiichi Sekiguchi

    IPC分类号: H04H20/63 H04H1/00

    CPC分类号: H04H20/63

    摘要: A system for utilizing audio frequency wiring circuits at drive-in theaters to transmit radio frequency signals to patron automobile radio receivers with increased efficiency and a reduction in radiation of the radio frequency signals. The system employs impedance matching networks, coupling networks and termination networks to enable the audio frequency wiring circuits to operate as transmission lines.

    摘要翻译: 一种用于在驱动室中利用音频布线电路的系统,其以增加的效率和射频信号的辐射的减少将射频信号发送给顾客汽车无线电接收机。 该系统采用阻抗匹配网络,耦合网络和终端网络,使音频布线电路作为传输线路工作。

    Drive-in theater audio system
    4.
    发明授权
    Drive-in theater audio system 失效
    驱动剧院音响系统

    公开(公告)号:US4047109A

    公开(公告)日:1977-09-06

    申请号:US611635

    申请日:1975-09-09

    申请人: Kiichi Sekiguchi

    发明人: Kiichi Sekiguchi

    摘要: A drive-in movie theater audio system provides sound to the patrons over their car radios and connects to each radio through a novel lead-in which couples the car radio antenna to a transmission bus connected to a central broadcast band transmitter. The lead-in employs a pair of elongated wire sections supported parallel to one another to capacitively couple the broadcast band signal to the car antenna.

    摘要翻译: 驱动式电影院音频系统通过汽车收音机向顾客提供声音,并通过一种新颖的引入连接到每个无线电装置,其将车载无线电天线耦合到连接到中央广播频带发射机的传输总线。 引入线使用一对彼此平行支撑的细长的线段,以将广播频带信号电容耦合到汽车天线。