Magnetic recording and playback apparatus of perpendicular recording type
    1.
    发明授权
    Magnetic recording and playback apparatus of perpendicular recording type 失效
    垂直记录类型的磁记录和回放装置

    公开(公告)号:US4413297A

    公开(公告)日:1983-11-01

    申请号:US266330

    申请日:1981-05-22

    IPC分类号: G11B5/02 G11B5/127 G11B5/30

    CPC分类号: G11B5/02 G11B5/1278

    摘要: A magnetic recording and playback apparatus of perpendicular recording type comprises a main pole having a magnetic axis which is normal to a recording surface of a magnetic record medium, an auxiliary magnetic pole disposed in surrounding relationship with the main pole with a small clearance from the lateral side thereof, a coil disposed on part of the auxiliary pole, and a yoke having its one end connected to the auxiliary pole and having its other end of a relatively large area disposed in opposite relationship with the recording surface of the record medium. The free end of the main pole is disposed in contact with the surface of the record medium while the yoke is disposed at a given distance from the surface of the record medium. During a recording operation, a current is passed through the coil in accordance with information to be recorded. Thereupon, a magnetic flux is concentrated in the free end of the main pole to cause an inversion of magnetization in that region of a magnetic layer of the record medium which is contacted by the main pole, thus recording the information. During a playback operation, the free end of the main pole picks up a magnetic flux which depends on the magnetization, representing the information, recorded in the magnetic layer of the record medium, producing a corresponding current flow through the coil. An output current from the coil is utilized for reproduction of the recorded information.

    摘要翻译: 垂直记录类型的磁记录和重放装置包括具有垂直于磁记录介质的记录表面的磁轴的主极,与主极相关联的辅助磁极,与主极具有小的间隙 设置在辅助极的一部分上的线圈以及一端连接到辅助极的轭,其另一端具有与记录介质的记录表面相反的相对较大的区域。 主磁极的自由端设置成与记录介质的表面接触,同时磁轭设置在距离记录介质表面一定距离处。 在记录操作期间,电流根据要记录的信息通过线圈。 于是,磁通量集中在主极的自由端,从而在与主极接触的记录介质的磁性层的该区域中引起磁化反转,从而记录信息。 在重放操作期间,主极的自由端拾取取决于记录在记录介质的磁性层中的表示信息的磁化的磁通量,产生通过线圈的相应的电流。 来自线圈的输出电流用于再现所记录的信息。

    Ferrocyanate treating liquid for offset master
    2.
    发明授权
    Ferrocyanate treating liquid for offset master 失效
    用于偏移主轴的氟化氰处理液

    公开(公告)号:US4116698A

    公开(公告)日:1978-09-26

    申请号:US836055

    申请日:1977-09-23

    CPC分类号: B41N3/08

    摘要: The present invention provides a treating liquid for use in treating offset masters which treating liquid consists essentially of ferrocyanate, water-soluble phosphate and a specific polymer or copolymer. By the use of this treating liquid, the durability of offset masters in printing can be remarkably enhanced.

    摘要翻译: 本发明提供了一种用于处理偏移主体的处理液,其处理液主要由铁氰化物,水溶性磷酸盐和特定聚合物或共聚物组成。 通过使用这种处理液,可以显着地提高印刷中胶版印刷机的耐久性。

    Method for desensitizing offset printing plates
    6.
    发明授权
    Method for desensitizing offset printing plates 失效
    胶印印版的脱敏方法

    公开(公告)号:US4282811A

    公开(公告)日:1981-08-11

    申请号:US65487

    申请日:1979-08-10

    IPC分类号: B41N3/08 B41M1/00

    CPC分类号: B41N3/08

    摘要: A method for desensitizing an offset printing plate which comprises applying an aqueous desensitizing composition consisting essentially of at least one complex to a non-image area of the offset printing plate having an oleophilic image formed thereon in an amount effective to desensitize said non-image area.

    摘要翻译: 一种胶版印刷机的脱敏方法,其特征在于,将含有至少一个复合物的水性脱敏组合物涂布到胶版印刷版的非图像区域上,所述非图像区域具有形成在其上的亲油性图像,其有效地使所述非图像区域脱敏 。

    Double dispersion acrylate or methacrylate wet developer
    10.
    发明授权
    Double dispersion acrylate or methacrylate wet developer 失效
    双分散丙烯酸酯或甲基丙烯酸酯湿显影剂

    公开(公告)号:US3933667A

    公开(公告)日:1976-01-20

    申请号:US340111

    申请日:1973-03-12

    IPC分类号: G03G9/13 G03G9/00

    CPC分类号: G03G9/13

    摘要: A wet developer for use in electrophotography which consists of a carrier liquid having electric resistance of 10.sup.9 .OMEGA. . cm or more and dielectric constant of less than 3 and containing colored particles with a particle size of about 0.1 .about. 10 .mu., said particles being substantially insoluble in said carrier liquid, possessed of properties of solid matter and showing a distinct polarity within said carrier liquid, coupled with adhesive suspended particles with a particle size of about 0.01 .about. 10 .mu. which show the same polarity as said colored particles.

    摘要翻译: 用于电子照相术的湿式显影剂,其由具有109欧姆加电阻的载体液体组成。 cm以上,介电常数小于3,含有粒径约为0.1μm的有色颗粒,所述颗粒基本上不溶于所述载体液体,具有固体物质的性质,并且在所述载体液体中显示出明显的极性 ,与粘度悬浮颗粒结合,其具有与所述有色颗粒相同的极性的约0.01μm的粒度。