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32 条记录 (耗时 0.015 秒)

    Thin-film magnetic head
    21.
    发明授权
    Thin-film magnetic head 失效
    薄膜磁头

    公开(公告)号：US4353102A

    公开(公告)日：1982-10-05

    申请号：US165941

    申请日：1980-07-03

    申请人： Kenji Kanai ,  Nobuyuki Kaminaka ,  Noboru Nomura ,  Norimoto Nouchi

    发明人： Kenji Kanai ,  Nobuyuki Kaminaka ,  Noboru Nomura ,  Norimoto Nouchi

    IPC分类号： G11B5/31 ,  G11B5/22 ,  G11B5/20 ,  G11B5/25

    CPC分类号： G11B5/31

    摘要： A thin-film magnetic head constructed in the manner that a magnetic circuit is composed of a base of magnetic material and a thin-film magnetic core layer, which form an operating gap at the front end thereof and a rear junction at the rear end of the magnetic core layer, and a conductor layer forming a winding is provided between the base and the magnetic core layer. The magnetic core layer has a larger width at the portion where it crosses over the conductor layer, than at the operating gap portion, whereby magnetic fluxes generated by electric current flowing through the conductor layer are effectively passed through the magnetic core layer and so recording efficiency is improved.

    摘要翻译： 一种薄膜磁头，其构造为磁路由磁性材料的基底和薄膜磁性核心层构成，所述基底在其前端形成工作间隙，在后端形成后接合部 磁芯层和形成绕组的导体层设置在基座和磁芯层之间。 磁芯层在与导体层交叉的部分处的宽度比在工作间隙部分具有较大的宽度，由此流过导体层的电流产生的磁通有效地通过磁芯层，因此记录效率 改进了

    Thin film magnetic head
    22.
    发明授权
    Thin film magnetic head 失效
    薄膜磁头

    公开(公告)号：US4241367A

    公开(公告)日：1980-12-23

    申请号：US17536

    申请日：1979-03-05

    申请人： Noboru Nomura ,  Kenji Kanai ,  Nobuyuki Kaminaka ,  Norimoto Nouchi

    发明人： Noboru Nomura ,  Kenji Kanai ,  Nobuyuki Kaminaka ,  Norimoto Nouchi

    IPC分类号： G11B5/31 ,  H01F41/34 ,  G11B5/14 ,  G11B5/20

    CPC分类号： G11B5/31 ,  G11B5/3163 ,  H01F41/34

    摘要： This invention provides a thin film magnetic head composed of at least one conductive body layer formed in a magnetic material substrate with grooves therein, each groove being filled with a non-magnetic material, an insulating layer formed on the face of the magnetic material substrate including the conductive body layers, and a magnetic material layer formed on the insulating body layer. To precisely form the groove, an electrolytic etching process of the substrate and an annealing process of the substrate surface layer are combined to provide an straight-line property of the groove and the groove section, circular in arc, with better reproducibility.

    摘要翻译： 本发明提供一种薄膜磁头，其由至少一个形成在其中具有凹槽的磁性材料基板中的导电体层构成，每个凹槽填充有非磁性材料，形成在磁性材料基板的表面上的绝缘层包括 导电体层和形成在绝缘体层上的磁性材料层。 为了精确地形成凹槽，将基板的电解蚀刻工艺和基板表面层的退火处理结合，以提供凹槽和凹槽部分的直线性，圆弧形，具有更好的再现性。

    Magnetoresistance effect type head
    25.
    发明授权
    Magnetoresistance effect type head 失效
    磁阻效应型头

    公开(公告)号：US4392166A

    公开(公告)日：1983-07-05

    申请号：US237408

    申请日：1981-02-23

    申请人： Shinzaburo Ishikawa ,  Kenji Kanai ,  Nobuyuki Kaminaka ,  Tetuo Adachi

    发明人： Shinzaburo Ishikawa ,  Kenji Kanai ,  Nobuyuki Kaminaka ,  Tetuo Adachi

    IPC分类号： G11B5/10 ,  G11B5/31 ,  G11B5/39 ,  G11B5/30 ,  G11B5/12 ,  G11B5/20 ,  G11B5/38

    CPC分类号： G11B5/3903 ,  G11B5/10 ,  G11B5/3103

    摘要： A magnetoresistance effect type head or an MR head which includes a main portion further having a casing with a recess at its one surface, for providing a bonding surface in the casing so as to be generally U-shape in its cross section, and a magnetoresistance effect type head chip, a support member for a magnetic tape sliding surface and a terminal member for external connection which are all collectively bonded to the bonding surface, and a cover plate further bonded onto the main portion.

    摘要翻译： 一种磁电阻效应型磁头或MR磁头，其包括主体部分，其还具有在其一个表面具有凹部的壳体，用于在壳体中提供在其横截面中大致为U形的接合表面，以及磁阻 效果型头部芯片，用于磁带滑动面的支撑构件和用于外部连接的端子构件都被共同地结合到接合表面;以及盖板，其进一步接合到主体部分上。

    Magnetic head comprising a core formed of small and large thin film patterns
    27.
    发明授权
    Magnetic head comprising a core formed of small and large thin film patterns 失效
    磁头包括由小而大的薄膜图案形成的芯

    公开(公告)号：US4716484A

    公开(公告)日：1987-12-29

    申请号：US619917

    申请日：1984-06-12

    申请人： Nobuyuki Kaminaka ,  Yasuo Yoshida

    发明人： Nobuyuki Kaminaka ,  Yasuo Yoshida

    IPC分类号： G11B5/31 ,  G11B5/127 ,  G11B5/147

    CPC分类号： G11B5/3163 ,  G11B5/3116

    摘要： A thin film magnetic head comprising a magnetic core of accumulation layers forming a magnetic circuit and including at least two layers of magnetic film with a particular magnetic characteristic. The constitution of completely covering a magnetic film with a small pattern by a magnetic film with a large pattern makes the edge part smooth because the end of the underlying magnetic film is covered with the upper magnetic film. This edge-smoothing effect appears most pronounced in a manufacturing method in which electrodeposition is used for the formation of magnetic films. By sequentially forming the magnetic films from that of a smaller pattern towards that of a larger pattern, the film formation proceeds at step parts such as end parts of the underlying magnetic films due to the levelling action which is inherent in the electrodeposition method. Such a film formation realizes extremely smooth shielding and yet the pattern formation can be carried out by a single step of photoresist coating to shorten the production process.

    摘要翻译： 一种薄膜磁头，包括形成磁路的累积层的磁芯，并且包括具有特定磁特性的至少两层磁性膜。 通过具有大图案的磁性膜完全覆盖具有小图案的磁性膜的结构使得边缘部分光滑，因为下面的磁性膜的末端被上部磁性膜覆盖。 这种边缘平滑效果在电沉积用于形成磁性膜的制造方法中显现出最显着。 通过从较小图案向较大图案的磁膜顺序地形成磁膜，由于电沉积方法固有的调平作用，膜形成在诸如底层磁性膜的端部的步骤部分进行。 这种膜形成实现了非常光滑的屏蔽，但是可以通过光刻胶涂覆的一个步骤来进行图案形成，以缩短生产过程。

    Magnetic head for perpendicular magnetic recording and reproduction
    28.
    发明授权
    Magnetic head for perpendicular magnetic recording and reproduction 失效
    用于垂直磁记录和再现的磁头

    公开(公告)号：US4745506A

    公开(公告)日：1988-05-17

    申请号：US89945

    申请日：1987-08-26

    申请人： Kazuo Nakamura ,  Seishi Sasaki ,  Ken Takahashi ,  Hiroshi Yohda ,  Nobuyuki Kaminaka

    发明人： Kazuo Nakamura ,  Seishi Sasaki ,  Ken Takahashi ,  Hiroshi Yohda ,  Nobuyuki Kaminaka

    IPC分类号： G11B5/127 ,  G11B5/17 ,  G11B5/31 ,  G11B5/147 ,  G11B5/187 ,  G11B5/23

    CPC分类号： G11B5/1278 ,  G11B5/17 ,  G11B5/3103

    摘要： A perpendicular magnetic head of high recording and reproducing efficiency which integrally incorporates a step-up transformer. A main pole for picking up a reproduce magnetic flux from a recording medium and applying recording magnetic field thereto is formed of a magnetic thin film. A signal winding formed of a thin film is disposed in the immediate vicinity of the forward end of the main pole so as to have a high conversion sensitivity per turn with respect to the reproduce magnetic flux from the recording medium. The signal winding which itself constitutes a closed circuit interlinks a magnetic path of the step-up transformer, thereby forming a primary winding of the transformer. A secondary winding from which head output is taken out is wound in the magnetic path of the transformer.

    摘要翻译： 具有高记录和再现效率的垂直磁头，其整体结合了升压变压器。 用于从记录介质拾取再现磁通并向其施加记录磁场的主极由磁性薄膜形成。 由薄膜形成的信号绕组设置在主极的前端附近，以便相对于来自记录介质的再现磁通具有高的每转转换灵敏度。 本身构成闭路的信号绕组使升压变压器的磁路相互连接，从而形成变压器的初级绕组。 取出头部输出的次级绕组缠绕在变压器的磁路中。

    Magnetoresistive thin film head
    29.
    发明授权
    Magnetoresistive thin film head 失效
    磁阻薄膜头

    公开(公告)号：US4663683A

    公开(公告)日：1987-05-05

    申请号：US629546

    申请日：1984-07-03

    申请人： Hiroshi Youda ,  Nobuyuki Kaminaka ,  Satoru Mitani

    发明人： Hiroshi Youda ,  Nobuyuki Kaminaka ,  Satoru Mitani

    IPC分类号： G11B5/39 ,  G11B5/127 ,  G11B5/33

    CPC分类号： G11B5/3906 ,  G11B5/3903

    摘要： In a magnetic head which utilizes the magnetoresistive effect of a ferromagnetic thin film, it is possible to realize a magnetoresistive effect type thin film magnetic head with favorable secondary distortion characteristics by forming on at least one surface of the ferromagnetic thin film, a grating forming an angle larger than 60.degree. and smaller than 80.degree. with respect to the direction of the electric current flowing through the thin film. By setting the grating into more than two different directions, a magnetic head capable of functioning at a still smaller distortion is presented.

    摘要翻译： PCT No.PCT / JP83 / 00401 Sec。 371日期1984年7月3日 102（e）日期1984年7月3日PCT提交1983年11月10日PCT公布。 出版物WO84 / 02028 日期：1984年5月24日。在利用铁磁性薄膜的磁阻效应的磁头中，可以通过在铁磁薄膜的至少一个表面上形成具有良好二次畸变特性的磁阻效应型薄膜磁头 薄膜，相对于流过薄膜的电流方向形成大于60°且小于80°的角度的光栅。 通过将光栅设置成多于两个不同的方向，可以提供能够以更小失真工作的磁头。