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7 条记录 (耗时 0.013 秒)

    Magnetic recording and reproducing apparatus for controlling the tension of a magnetic tape
    1.
    发明授权
    Magnetic recording and reproducing apparatus for controlling the tension of a magnetic tape 失效
    用于控制磁带张力的磁记录和重放装置

    公开(公告)号：US5947402A

    公开(公告)日：1999-09-07

    申请号：US899203

    申请日：1997-07-23

    申请人： Eiji Yokoyama ,  Masato Nagasawa ,  Kazuo Mori ,  Seiji Kishikawa ,  Masami Tomita ,  Nobuzumi Kurihara

    发明人： Eiji Yokoyama ,  Masato Nagasawa ,  Kazuo Mori ,  Seiji Kishikawa ,  Masami Tomita ,  Nobuzumi Kurihara

    IPC分类号： H04N5/783 ,  G11B5/584 ,  G11B5/588 ,  G11B15/43 ,  G11B15/473 ,  G11B15/56 ,  G11B15/60 ,  G11B15/61 ,  G11B15/46 ,  G11B23/42

    CPC分类号： G11B15/43 ,  G11B15/473 ,  G11B15/56 ,  G11B15/602 ,  G11B15/61 ,  G11B5/588

    摘要： A magnetic recording and reproducing apparatus for recording a desired sound or picture signal to a magnetic tape by a magnetic head. At the time of normal-speed recording and reproduction, the magnetic tape is taken up at a constant speed, but by changing the tape travelling speed of the tape on the rotary drum, DTF control and high-speed noiseless reproduction are enabled. The tension of the tape on the entrance side of the rotary drum is controlled to a desired value. This apparatus includes a tape tension actuator and a tape drawing actuator on the entrance side and on the exit side, respectively, of the rotary drum. In DTF control, both tape actuators correct a tracking error of the tape in cooperation with each other. In high-speed noiseless reproduction, both tape actuators are differentially driven so as to lower the tape travelling speed on the rotary drum. Both tape actuators are driven in feedback control using the modern control.

    摘要翻译： 一种用于通过磁头将期望的声音或图像信号记录到磁带的磁记录和重放装置。 在正常速度记录和再现时，磁带以恒定速度被采集，但是通过改变旋转磁鼓上的磁带的磁带行进速度，可以进行DTF控制和高速无噪声再现。 将旋转鼓入口侧的胶带的张力控制在期望值。 该装置包括分别在旋转鼓的入口侧和出口侧的带张力致动器和带拉动致动器。 在DTF控制中，两个磁带执行器彼此协调地校正磁带的跟踪误差。 在高速无声再现中，两个磁带致动器被差动驱动，以便降低旋转磁鼓上的磁带行进速度。 两个磁带执行机构均采用现代控制器进行反馈控制。

    Black chromate solution
    3.
    发明授权
    Black chromate solution 失效
    黑色铬酸溶液

    公开(公告)号：US5565042A

    公开(公告)日：1996-10-15

    申请号：US562149

    申请日：1995-11-22

    申请人： Hitoshi Sakurai ,  Seiji Kishikawa ,  Tomitaka Yamamoto ,  Tadahiro Itoh

    发明人： Hitoshi Sakurai ,  Seiji Kishikawa ,  Tomitaka Yamamoto ,  Tadahiro Itoh

    IPC分类号： C25D11/38 ,  C23C22/26 ,  C23C22/27

    CPC分类号： C23C22/27

    摘要： A chemically stable black chromate solution capable of forming an anticorrosive black chromate film on a Zn-Ni alloy plating is provided, the components being easily soluble in the solution. The black chromate solution comprises 1 to 50 g/l of hexavalent chromium; 1 to 50 g/l of sulfate ion; 0.05 to 1.0 g/l of soluble silver; 0.5 to 100 g/l of a sulfonated carboxylic acid selected from the group consisting of sulfo-aromatic carboxylic acids having 7 to 15 carbon atoms, sulfonated aliphatic dicarboxylic acids having 3 to 10 carbon atoms and salts thereof; and a balance of water, the solution having a pH of 0.5 to 2.5.

    摘要翻译： 提供了能够在Zn-Ni合金电镀上形成防腐黑色铬酸盐膜的化学稳定的黑色铬酸盐溶液，其组分易溶于溶液。 黑色铬酸盐溶液含有1至50g / l的六价铬; 1至50克/升硫酸根离子; 0.05〜1.0g / l的可溶性银; 0.5至100g / l的磺化羧酸，其选自具有7至15个碳原子的磺基芳族羧酸，具有3至10个碳原子的磺化脂族二羧酸及其盐; 和余量的水，该溶液的pH为0.5至2.5。

    Black chromate-treatment solution for Zn-Ni alloy plated film
    6.
    发明授权
    Black chromate-treatment solution for Zn-Ni alloy plated film 失效
    Zn-Ni合金镀膜黑铬酸盐处理液

    公开(公告)号：US5735972A

    公开(公告)日：1998-04-07

    申请号：US671596

    申请日：1996-06-28

    申请人： Seiji Kishikawa ,  Takashi Yamamoto

    发明人： Seiji Kishikawa ,  Takashi Yamamoto

    IPC分类号： C23C22/24 ,  C23C22/27 ,  C23C22/26

    CPC分类号： C23C22/27 ,  C23C22/24

    摘要： A black chromate-treatment solution for Zn-Ni alloy plated film comprises 1 to 100 g/l of hexavalent chromium, 1 to 100 g/l of hydrochloric acid residues and/or sulfuric acid residues, 1 to 100 g/l of nitric acid residues and 1 to 100 g/l of at least one metal selected from the group consisting of iron, nickel, cobalt and copper. The chromate-treatment solution permits the formation of a uniform black chromate conversion film on a Zn-Ni alloy plated film having an Ni content ranging from 8 to 20% by weight without using any silver ions in a substantial amount and the resulting black film is excellent in corrosion resistance.

    摘要翻译： 用于Zn-Ni合金镀膜的黑色铬酸盐处理溶液包含1至100g / l的六价铬，1至100g / l的盐酸残留物和/或硫酸残留物，1至100g / l的硝酸 残渣和1至100克/升至少一种选自铁，镍，钴和铜的金属。 铬酸盐处理溶液允许在具有8至20重量％的Ni含量的Zn-Ni合金镀膜上形成均匀的黑铬酸盐转化膜，而不使用大量的任何银离子，并且所得黑色膜为 耐腐蚀性优良。

    Automatic cassette tape recording and reproducing apparatus with a pivotable magazine holder
    7.
    发明授权
    Automatic cassette tape recording and reproducing apparatus with a pivotable magazine holder 失效
    自动卡带录音和复制装置与可移动杂志

    公开(公告)号：US5148332A

    公开(公告)日：1992-09-15

    申请号：US492990

    申请日：1990-03-13

    申请人： Masami Tomita ,  Seiji Kishikawa ,  Yoshinori Kakuta

    发明人： Masami Tomita ,  Seiji Kishikawa ,  Yoshinori Kakuta

    IPC分类号： G11B15/68

    CPC分类号： G11B15/6865

    摘要： An automatic cassette tape recording and reproducing apparatus having a plurality of cassettes mounted wherein any tape cassette for a reproducing or recording operation may be selected. The apparatus includes a swinging base with a revolving turntable having cassette holders, a turntable revolving mechanism for revolving the turntable when a cassette is selected, and a position detecting mechanism for positioning and identifying the cassette selected by the turntable revolving mechanism. The apparatus also includes a deck on which the selected cassette is mounted when the swinging base comes to a position for playing.