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7 条记录 (耗时 0.017 秒)

    Magnetic recording head
    2.
    发明授权
    Magnetic recording head 失效
    磁记录头

    公开(公告)号：US4525723A

    公开(公告)日：1985-06-25

    申请号：US449940

    申请日：1982-12-15

    申请人： Nobuo Nishimura ,  Teruhiko Itami ,  Toshifumi Kimoto ,  Shunsuke Tomiyama ,  Koichi Saitoh

    发明人： Nobuo Nishimura ,  Teruhiko Itami ,  Toshifumi Kimoto ,  Shunsuke Tomiyama ,  Koichi Saitoh

    IPC分类号： G11B5/31 ,  B41J2/43 ,  G01D15/12 ,  G03G19/00 ,  G11B5/127 ,  G11B5/17 ,  G11B5/49

    CPC分类号： G11B5/4923 ,  B41J2/43 ,  G01D15/12 ,  G03G19/005

    摘要： A thin film magnetic recording head and process for fabricating it is disclosed. The magnetic recording head has a core with a gap the same length as the width of an original document to be produced and is positioned in contact with a moving magnetic recording medium and perpendicular to the direction of movement thereof. A high magnetic permeable body is disposed in the gap of the head core and is in contact with the magnetic recording medium. A heat generation body of the same length as the high magnetic permeable body is positioned in contact therewith. Means for selectively heating segments of the heat generation body corresponding to the width of a picture element is provided. The portions of segments the high magnetic permeable body that are heated via the heat generation body segments, above its curie point are rendered non-magnetic forcing the magnetic flux generated in the core by an exciting coil external of this portion and into the magnetic recording medium, thus forming latent magnetic images in the recording medium.

    摘要翻译： 公开了一种薄膜磁记录头及其制造方法。 磁记录头具有与要生产的原始文件的宽度相同的间隙的芯，并且与磁性记录介质接触并且垂直于其移动方向。 高磁导性体设置在头芯的间隙中并与磁记录介质接触。 与高磁导体相同长度的发热体与其接触。 提供了用于选择性地加热与图像元素的宽度对应的发热体​​的部分的装置。 通过发热体部分在其居里点之上加热的高磁导体的部分被非磁性地迫使在芯部产生的磁通量由该部分外部的励磁线圈并进入磁记录介质 ，从而在记录介质中形成潜像。

    Magnetic recording arrangement for thermographic printing apparatus
    6.
    发明授权
    Magnetic recording arrangement for thermographic printing apparatus 失效
    热敏印刷设备的磁记录装置

    公开(公告)号：US4621269A

    公开(公告)日：1986-11-04

    申请号：US665301

    申请日：1984-10-26

    申请人： Toshifumi Kimoto ,  Teruhiko Itami ,  Akira Yamasawa ,  Eiji Nishikawa ,  Nobuo Nishimura

    发明人： Toshifumi Kimoto ,  Teruhiko Itami ,  Akira Yamasawa ,  Eiji Nishikawa ,  Nobuo Nishimura

    IPC分类号： G03G19/00 ,  G11B9/00 ,  G03G15/02

    CPC分类号： G03G19/00

    摘要： Magnetic recording arrangement, for example, in a thermomagnetographic plain-paper printer, produces a latent magnetic image on a magnetic recording medium which is composed of a ferromagnetic layer, first magnetized along a predetermined direction before forming the latent magnetic image, and a magnetic layer of high permeability to be converted into a paramagnetic layer by being subjected to the heat from a heating head until the layer is heated to its Curie point or above. The magnetic layers are respectively laminated to opposite sides of a base layer, the heating head being placed at the opposite side of the base layer from the ferromagnetic layer so as to remain out of contact with the ferromagnetic layer, thus making the cleaning of the heating head substantially unnecessary while keeping the latent magnetic image of high quality. In the magnetic recording medium, a direct-current magnetic field of the opposite sense as the magnetized direction of the ferromagnetic layer, or an alternating-current magnetic field the phase of which is reversed at positions corresponding to opposite ends of at least a paramagnetized part, is applied to the paramagnetized part of the high permeable magnetic layer thus forming a magnetic latent image on the ferromagnetic layer by leakage of the magnetic flux from the paramagnetized part to the ferromagnetic layer.

    摘要翻译： 磁记录装置，例如在热磁照相普通纸打印机中，在磁记录介质上产生潜磁图像，该磁记录介质由铁磁层组成，该铁磁层在形成潜像之前沿预定方向首先磁化，并且磁层 的高磁导率通过经受来自加热头的热直到层被加热到其居里点或更高的位置而被转化为顺磁层。 磁性层分别层压到基层的相对侧，加热头被放置在与铁磁层相反的基底层的相对侧，以便与铁磁层保持脱离接触，从而使得加热 头部基本上不必要，同时保持高质量的潜在磁性图像。 在磁记录介质中，与铁磁层的磁化方向相反的直流磁场或其相位相反的交流磁场在对应于至少一个顺磁化部分的相对端的位置 ，被施加到高渗透性磁性层的顺磁性部分，从而通过将磁通从辅助磁化部分泄漏到铁磁层而在铁磁层上形成磁潜像。

    Optical data recordation and reproduction system
    7.
    发明授权
    Optical data recordation and reproduction system 失效
    光学数据记录和再现系统

    公开(公告)号：US4525822A

    公开(公告)日：1985-06-25

    申请号：US354673

    申请日：1982-03-04

    申请人： Nobuo Nishimura

    发明人： Nobuo Nishimura

    IPC分类号： G11B9/06 ,  G11B7/00 ,  G11B7/004 ,  G11B7/013 ,  G11B20/14

    CPC分类号： G11B7/24085 ,  G11B20/1423

    摘要： An optical data recordation and reproduction system comprising a first optical means modulates a light beam with digitized data and impacts this modulated light beam onto a photosensitive material, producing discontinuities in the photosensitive material corresponding to the data. A second optical means then directs a beam of unmodulated light onto this photosensitive material, and converts the resulting modulated light into an electric signal. An electric circuit then differentiates and samples the signal, producing the recorded digitized data via self-locking.

    摘要翻译： 包括第一光学装置的光学数据记录和再现系统用数字化数据调制光束并将该调制的光束撞击到感光材料上，产生与数据相对应的感光材料的不连续性。 然后，第二光学装置将未调制的光束引导到该感光材料上，并将所得到的调制光转换成电信号。 然后，电路对信号进行差分和采样，通过自锁产生记录的数字化数据。