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    Magnetoresistance type magnetic head and method for fabricating same
    4.
    发明授权
    Magnetoresistance type magnetic head and method for fabricating same 失效
    磁阻型磁头及其制造方法

    公开(公告)号：US4807073A

    公开(公告)日：1989-02-21

    申请号：US40127

    申请日：1987-04-20

    申请人： Tooru Takeura ,  Kazuhiro Momata

    发明人： Tooru Takeura ,  Kazuhiro Momata

    IPC分类号： G11B5/39 ,  G11B5/12 ,  G11B5/30

    CPC分类号： G11B5/3903

    摘要： A magnetoresistance type magnetic head, in which a magnetoresistance film is disposed through an insulating film between two soft magnetic bodies, and a signal leadout conductor for the magnetoresistance film is disposed in the insulating film so that its surface is at the same level as that of the insulating film, thereby providing a high-performance magnetoresistance type magnetic head, in which the gap length is small and the resistance of the signal leadout conductor portion is small.

    摘要翻译： 通过两个软磁体之间的绝缘膜设置磁阻膜的磁阻型磁头和用于磁阻膜的信号引出导体设置在绝缘膜中，使得其表面处于与 从而提供间隙长度小并且信号引出导体部分的电阻小的高性能磁阻型磁头。

    Magnetic head closure having ferrite substrate and closure and conductive thin film coil deposited in recess of substantially same shape in ferrite substrate
    5.
    发明授权
    Magnetic head closure having ferrite substrate and closure and conductive thin film coil deposited in recess of substantially same shape in ferrite substrate 失效
    具有铁氧体衬底的磁头封盖和在铁氧体衬底中沉积在基本相同形状的凹陷中的闭合和导电薄膜线圈

    公开(公告)号：US4860140A

    公开(公告)日：1989-08-22

    申请号：US183338

    申请日：1988-04-07

    申请人： Kazuhiro Momata ,  Kousaku Chida ,  Tooru Takeura ,  Yukihisa Tsukada

    发明人： Kazuhiro Momata ,  Kousaku Chida ,  Tooru Takeura ,  Yukihisa Tsukada

    IPC分类号： G11B5/133 ,  G11B5/17 ,  G11B5/187 ,  G11B5/193

    CPC分类号： G11B5/193 ,  G11B5/1335 ,  G11B5/17 ,  G11B5/1871

    摘要： The magnetic head according to the present invention has a ferrite substrate and closure. The ferrite substrate has formed therein a first recess in which a conductive coil is to be deposited, while the ferrite closure has formed therein a second recess enclosing a portion of the conductive coil that is contributed to at least signal transducing. The end of the second recess is disposed in a position related with the depth of the tranducing gap. Since the first recess in which the conductive coil is deposited has no influence on the magnetic transducing efficiency, it can be much freely formed by photolithography or reactive ion etching. Also since the second recess having an influence on the magnetic transducing efficiency can be formed by precision machining, no advanced process control is needed.

    摘要翻译： 根据本发明的磁头具有铁氧体衬底和封闭件。 铁氧体衬底在其中形成有要沉积导电线圈的第一凹部，而铁氧体封闭件在其中形成有封闭导电线圈的至少有助于至少信号传导的部分的第二凹部。 第二凹部的端部设置在与调节间隙的深度相关的位置。 由于其中沉积导电线圈的第一凹槽对磁转换效率没有影响，所以可以通过光刻或反应离子蚀刻来自由地形成。 此外，由于可以通过精密加工形成对磁转换效率有影响的第二凹部，因此不需要先进的工艺控制。

    Magnetoresistive element
    7.
    发明授权
    Magnetoresistive element 失效
    磁阻元件

    公开(公告)号：US4821012A

    公开(公告)日：1989-04-11

    申请号：US73093

    申请日：1987-07-14

    申请人： Yoshihisa Kamo ,  Kazuhiro Momata

    发明人： Yoshihisa Kamo ,  Kazuhiro Momata

    IPC分类号： G11B5/09 ,  G01R33/09 ,  G11B5/39 ,  H01L43/00

    CPC分类号： B82Y25/00 ,  G01R33/093 ,  G11B5/3903 ,  G11B5/3964

    摘要： A shunt biased magnetoresistive element includes a sensor part sensitive to an external magnetic field and a pair of leads (electrodes) in contact with the sensor part. The width (W) of the contact between the sensor part and each of the leads is selected to be equal to or larger than the width (L) of the sensor part. The MR element further includes a center tap having a width (W') selected to be two or more times as large as the width (L) of the sensor part, because the quantity of current flowing through the center tap is two times as large as that flowing through each of the end leads.

    摘要翻译： 分流偏置磁阻元件包括对外部磁场敏感的传感器部分和与传感器部件接触​​的一对引线（电极）。 传感器部分和每个引线之间的接触的宽度（W）选择为等于或大于传感器部分的宽度（L）。 MR元件还包括具有选择为传感器部分的宽度（L）的两倍或更多倍的宽度（W'）的中心抽头，因为流过中心抽头的电流量是两倍 因为流过每个末端引线。

    Magnetic head assembly
    9.
    发明授权
    Magnetic head assembly 失效
    磁头组件

    公开(公告)号：US4695909A

    公开(公告)日：1987-09-22

    申请号：US669583

    申请日：1984-11-08

    申请人： Kazuhiro Momata ,  Yoshinori Dekura ,  Tadashi Honzawa ,  Hiromi Matsushige

    发明人： Kazuhiro Momata ,  Yoshinori Dekura ,  Tadashi Honzawa ,  Hiromi Matsushige

    IPC分类号： G11B5/29 ,  G11B5/10 ,  G11B5/127 ,  G11B5/187 ,  G11B15/64

    CPC分类号： G11B15/64 ,  G11B5/10

    摘要： A magnetic head for recording and reproducing information on and from a flexible magnetic recording tape. The active face of tape supporting protrusions formed in the magnetic head is so configured that the contacting area between the supporting protrusion and the recording tape is smaller at both end portions of the protrusion than an intermediate portion thereof as viewed in the direction widthwise of the recording tape, whereby improved contacting state and floating state between the magnetic head and the recording tape can be assured over the whole width of the flexible recording tape.

    摘要翻译： 用于在柔性磁记录带上记录和再现信息的磁头。 形成在磁头中的带支撑突起的主动面被构造成使得突出部的两个端部处的支撑突起和记录带之间的接触面积比其记录方向的宽度方向上的中间部分小 磁带，从而可以在柔性记录带的整个宽度上确保磁头和记录带之间的改善的接触状态和浮动状态。

    Current driving circuit
    10.
    发明授权
    Current driving circuit 失效
    电流驱动电路

    公开(公告)号：US4600965A

    公开(公告)日：1986-07-15

    申请号：US580711

    申请日：1984-02-16

    申请人： Naoki Sato ,  Yoshihisa Kamo ,  Yasuhiro Katoh ,  Kazuhiro Momata ,  Shinichi Arai

    发明人： Naoki Sato ,  Yoshihisa Kamo ,  Yasuhiro Katoh ,  Kazuhiro Momata ,  Shinichi Arai

    IPC分类号： G11B5/02 ,  G11B5/09 ,  H03K17/60 ,  H03K17/66 ,  G05F3/22 ,  H01H47/32

    CPC分类号： H03K17/603 ,  G11B5/02 ,  H03K17/667

    摘要： In a current driving circuit which supplies a two-terminal load with current to be inverted in accordance with input information, a current driving circuit according to the present invention comprises a load whose one-side terminal has its potential fixed, circuitry to supply a non-fixed side terminal of the load with a direct current, and circuitry to supply the non-fixed side terminal with a current having a magnitude double that of the direct current and a polarity opposite to that of the direct current, while switching it in accordance with input information. Owing to such construction, the number of terminals to be led out from the loads can be reduced, and a load current can be inverted at high speed. In addition, reliability can be enhanced because the assembling process is simplified.

    摘要翻译： 在根据输入信息向两端负载提供要反相的电流的电流驱动电路中，根据本发明的电流驱动电路包括其一侧端子具有其电位固定的电路， 具有直流电的负载的固定侧端子，以及用于向非固定侧端子提供具有与直流电流相反的直流电压和极性两倍的电流的电流的电路，同时根据 与输入信息。 由于这样的结构，可以减少从负载引出的端子的数量，并且可以高速地反转负载电流。 此外，由于组装过程简化，可以提高可靠性。