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18 条记录 (耗时 0.023 秒)

    Magnetic tape cassette with equalization of electrostatic charges
    1.
    发明授权
    Magnetic tape cassette with equalization of electrostatic charges 失效
    带静电电容均匀的磁带盒

    公开(公告)号：US4712148A

    公开(公告)日：1987-12-08

    申请号：US881855

    申请日：1986-07-03

    申请人： Werner Balz ,  Wulf Muenzner ,  Klaus D. Schomann ,  Heinz Berger ,  Roland Roos

    发明人： Werner Balz ,  Wulf Muenzner ,  Klaus D. Schomann ,  Heinz Berger ,  Roland Roos

    IPC分类号： G11B15/60 ,  G11B23/087 ,  G11B23/50 ,  H05F3/02 ,  G11B23/08

    CPC分类号： G11B15/60 ,  G11B23/08757 ,  G11B23/502 ,  H05F3/02 ,  Y10S242/906

    摘要： In a tape cassette, particularly a video tape cassette, equalization of electrostatic charges between the two faces of the tape is effected by a connector element or connector elements electrically connecting at least one of two electrically conducting guide elements contacting the front of the tape and provided on the two sides, respectively, of the cassette with at least the associated one of two electrically conducting tape deflecting elements provided in the two respective front corners of the tape cassette. In this manner sticking of the tape to the deflecting elements due to electrostatic attraction therebetween and also the build-up of electrostatic charges along the tape path parallel to the front of the cassette housing due to the transporting of such charges from the deflecting elements as a result of the tape travel, are counteracted.

    摘要翻译： 在磁带盒，特别是磁带盒中，带的两个面之间的静电电荷的均衡是通过连接器元件或连接器元件来实现的，该连接器元件或连接器元件电连接接触磁带前部的两个导电引导元件中的至少一个并提供 在盒的两侧分别具有设置在带盒的两个相应前角中的至少两个导电带偏转元件中的相关联的一个。 以这种方式，由于这些电荷从偏转元件的传输，由于静电吸引而将带粘附到偏转元件上，并且还使得沿着平行于磁带盒外壳的磁带路径的静电电荷积聚 磁带旅行的结果被抵消。

    Tape guide system for magnetic tapes, especially video tapes
    2.
    发明授权
    Tape guide system for magnetic tapes, especially video tapes 失效
    磁带导带系统，特别是录像带

    公开(公告)号：US4751601A

    公开(公告)日：1988-06-14

    申请号：US929267

    申请日：1986-11-10

    申请人： Roland Roos ,  Klaus D. Schomann ,  Wulf Muenzner

    发明人： Roland Roos ,  Klaus D. Schomann ,  Wulf Muenzner

    IPC分类号： G11B15/60 ,  G11B23/087 ,  G11B23/50 ,  H05F3/00

    CPC分类号： H05F3/00 ,  G11B15/60 ,  G11B23/08757 ,  G11B23/502

    摘要： A tape guide system wherein a magnetic tape having different resistivities on its back and front travels in contact with guide elements, the members of these elements which are in contact with the tape being matched to the relevant face of the tape in respect of surface resistivity and/or of charge affinity. The members contacting the front of the magnetic tape accordingly consist of a conductive or low-insulation material and the members contacting the back of the tape consist of a high-insulation material. In alternative embodiments, the contact members can consist of a material of low conductivity, or of a plastic with an added conductive material. The novel guide system can be used in any type of high-speed magnetic tape transport mechanism. The invention also concerns the tape guide elements per se, and magnetic tape cassettes employing the tape guide system.

    摘要翻译： 一种磁带引导系统，其中在其背面和前面具有不同电阻率的磁带与引导元件接触地行进，与磁带接触的这些元件的构件与表面电阻率的相关面相匹配， /或电荷亲和力。 接触磁带前部的构件相应地由导电或低绝缘材料组成，并且接触带背面的构件由高绝缘材料组成。 在替代实施例中，接触构件可以由具有低导电性的材料或具有添加的导电材料的塑料构成。 新型引导系统可用于任何类型的高速磁带传输机构。 本发明还涉及带引导元件本身以及采用带引导系统的磁带盒。

    Naphtholactamsquaric acid dyes and optical recording materials containing these dyes
    4.
    发明授权
    Naphtholactamsquaric acid dyes and optical recording materials containing these dyes 失效
    萘并三唑基磺酸染料和含有这些染料的光学记录材料

    公开(公告)号：US4830951A

    公开(公告)日：1989-05-16

    申请号：US93239

    申请日：1987-09-04

    申请人： Matthias Dust ,  Peter Neumann ,  Peter Hauser ,  Gerhard Wagenblast ,  Heidi Benthack-Thoms ,  Helmut Barzynski ,  Klaus D. Schomann ,  Harald Kuppelmaier

    发明人： Matthias Dust ,  Peter Neumann ,  Peter Hauser ,  Gerhard Wagenblast ,  Heidi Benthack-Thoms ,  Helmut Barzynski ,  Klaus D. Schomann ,  Harald Kuppelmaier

    IPC分类号： C09B57/06

    CPC分类号： C09B57/06 ,  Y10S430/146

    摘要： Naphtholactamsquaric acid dyes of the formula ##STR1## where R.sup.1 and R.sup.2 independently of one another are each unsubstituted or substituted C.sub.3 -C.sub.22 -alkyl, in which the alkyl chain may be interrupted by oxygen atoms, or are each unsubstituted or substituted C.sub.1 -C.sub.4 -aralkyl, unsubstituted or substituted C.sub.5 -C.sub.7 -cycloalkyl or unsubsituted or substituted phenyl, and the rings A, B, C and D are unsubstituted or substituted and/or benzofused, and optical recording materials consisting of a base and a layer which is sensitive to laser light and is composed of a thermoplastic or crosslinked polymer and one or more dyes (I).Because of the high light absorption of (I), the recording materials are very sensitive to light from the GaAlAs semiconductor laser. An excellent signal-to-noise ratio is obtained on reading the recordings.

    摘要翻译： 其中R 1和R 2彼此独立的式（I）的萘酚酸盐酸染料均为未取代或取代的C 3 -C 22 - 烷基，其中烷基链可被氧原子间隔，或者各自为未取代或取代的C1 -C 1-4 - 芳烷基，未取代或取代的C 5 -C 7 - 环烷基或未取代或取代的苯基，并且环A，B，C和D是未取代或取代和/或苯并稠合的光学记录材料， 对激光敏感，由热塑性或交联聚合物和一种或多种染料（I）组成。 由于（I）的高吸收光，记录材料对GaAlAs半导体激光器的光非常敏感。 在读取记录时获得良好的信噪比。