公开(公告)号：US4841399A

公开(公告)日：1989-06-20

申请号：US936617

申请日：1986-12-01

申请人： Masahiro Kitada ,  Noboru Shimizu ,  Hideo Tanabe ,  Hitoshi Nakamura ,  Tetsuo Kobayashi ,  Tooru Takeura ,  Kazuhiro Momata

发明人： Masahiro Kitada ,  Noboru Shimizu ,  Hideo Tanabe ,  Hitoshi Nakamura ,  Tetsuo Kobayashi ,  Tooru Takeura ,  Kazuhiro Momata

IPC分类号： G11B5/39

CPC分类号： G11B5/399 ,  G11B5/3903

摘要： The use of a pure zirconium film as a shunt film in a magnetoresistive head having a permalloy film as a magnetoresistive film and a shunt film for application of a transverse biasing magnetic field serves to improve the heat resistance of the magnetoresistive element and allows an increase in the temperature used in the process for producing a magnetic head.

摘要翻译： 在具有坡莫合金膜作为磁阻膜的磁阻头中使用纯锆膜作为分流膜，以及用于施加横向偏置磁场的分流膜用于提高磁阻元件的耐热性，并且允许增加 用于制造磁头的过程中使用的温度。

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。

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。

公开(公告)号：US4802043A

公开(公告)日：1989-01-31

申请号：US828349

申请日：1986-02-11

申请人： Naoki Sato ,  Yoshihisa Kamo ,  Tooru Takeura ,  Masao Katsumata ,  Kazuhiro Momata

发明人： Naoki Sato ,  Yoshihisa Kamo ,  Tooru Takeura ,  Masao Katsumata ,  Kazuhiro Momata

IPC分类号： G11B5/11 ,  G11B5/39 ,  G11B5/27

CPC分类号： G11B5/3903 ,  G11B5/11 ,  G11B5/39

摘要： The present invention relates to the structure of a magneto-resistive head for reducing the spike noises generated in the head and for increasing the signal to noise ratio when the information is reproduced. In order to achieve the object, an electric conductor layer is disposed at both sides or one side of a magneto-resistive element, and the conductor layer is isolated from the element and connected to a DC potential.

摘要翻译： 本发明涉及一种用于减少头部中产生的尖峰噪声的磁阻头的结构，并且用于在再现信息时提高信噪比。 为了实现该目的，导电体层设置在磁阻元件的两侧或一侧，并且导体层与元件隔离并连接到DC电位。

公开(公告)号：US5181149A

公开(公告)日：1993-01-19

申请号：US408690

申请日：1989-09-18

申请人： Masao Katsumata ,  Kazuhiro Momata ,  Kazuyoshi Adachi ,  Tooru Takeura ,  Masahiro Kitada ,  Yoshihisa Kamo ,  Toshikane Yoshimatsu

发明人： Masao Katsumata ,  Kazuhiro Momata ,  Kazuyoshi Adachi ,  Tooru Takeura ,  Masahiro Kitada ,  Yoshihisa Kamo ,  Toshikane Yoshimatsu

IPC分类号： G11B5/31 ,  G11B5/105 ,  G11B5/127 ,  G11B5/17 ,  G11B5/187 ,  G11B5/29 ,  G11B5/39 ,  G11B5/60

CPC分类号： G11B5/6005 ,  G11B5/105 ,  G11B5/1276 ,  G11B5/17 ,  G11B5/1877 ,  G11B5/29 ,  G11B5/3903

摘要： A magnetic recording/reproducing head assembly comprising a first magnetic path forming member on which a coil is mounted, a second magnetic path forming member which forms a magnetic path in cooperation with the first magnetic path forming member, and a film laminate formed at a front gap portion between the first magnetic path forming member and the second magnetic path forming member. The film laminate includes a magnetic detecting element for detecting a change in a magnetic field and a soft magnetic film or films. This magnetic head assembly is prepared by forming the film laminate on a head base of the head assembly, bonding a core member to the head base with the film laminate formed thereon, and mounting a coil on the core member.

摘要翻译： 一种磁记录/再现头组件，包括：第一磁路形成构件，其上安装有线圈;第二磁路形成构件，其与第一磁路形成构件协作形成磁路;以及膜叠层，形成在前面 第一磁路形成构件和第二磁路形成构件之间的间隙部分。 膜层叠体包括用于检测磁场变化的磁检测元件和软磁膜或膜。 这种磁头组件是通过在磁头组件的磁头基座上形成薄膜叠层而将芯体与形成在其上的薄膜层压体相结合的磁芯构件，并将线圈安装在磁芯构件上来制备的。

公开(公告)号：US4783711A

公开(公告)日：1988-11-08

申请号：US879567

申请日：1986-06-27

申请人： Masahiro Kitada ,  Hideo Tanabe ,  Noboru Shimizu ,  Hitoshi Nakamura ,  Kazuhiro Momata ,  Shigeyoshi Kato ,  Tooru Takeura ,  Tetsuo Kobayashi

发明人： Masahiro Kitada ,  Hideo Tanabe ,  Noboru Shimizu ,  Hitoshi Nakamura ,  Kazuhiro Momata ,  Shigeyoshi Kato ,  Tooru Takeura ,  Tetsuo Kobayashi

IPC分类号： G11B5/127 ,  G01R33/09 ,  G11B5/39 ,  G11B5/00 ,  G11B5/33

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

摘要： In a magnetoresistive sensor having a magnetoresistive effect element which is held between two sheets of high permeability magnetic ferrite with insulating layers interposed between them, a ferromagnetic metal film is provided adherently to the high permeability magnetic ferrite between the ferrite and the insulating layer, a rise in temperature of the magnetoresistive effect element thereby being held down and a reproduced waveform being made sharp, and thus the characteristics of the element being improved with the life thereof prolonged.

摘要翻译： 在具有磁阻效应元件的磁电阻传感​​器中，该磁阻效应元件保持在介于它们之间的绝缘层的两片高磁导率磁性铁氧体之间，铁磁金属膜与铁氧体和绝缘层之间的高磁导率磁性铁氧体附着地提供， 磁阻效应元件的温度由此被压下并且再现波形变得锋利，因此元件的特性随着使用寿命而延长。

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。

公开(公告)号：US4796132A

公开(公告)日：1989-01-03

申请号：US111284

申请日：1987-10-22

申请人： Yoshinori Dekura ,  Kazuhiro Momata ,  Tokiyuki Seto

发明人： Yoshinori Dekura ,  Kazuhiro Momata ,  Tokiyuki Seto

IPC分类号： G11B5/127 ,  G11B5/17 ,  G11B5/31 ,  H05K3/24 ,  H05K3/32 ,  H05K3/36 ,  G11B5/12 ,  G11B5/30

CPC分类号： H05K3/361 ,  G11B5/3103 ,  H05K2201/09036 ,  H05K2203/0285 ,  H05K3/244 ,  H05K3/328

摘要： Conductor film terminals of a thin film magnetic head are composed of an Au film while lead terminals of a flexible printed circuit board are covered with an Au layer, so that both of these terminals can be bonded by low temperature ultrasonic bonding directly between Au and Au. The reverse surface of the lead terminals of the flexible printed circuit board is bonded and fixed to a flexible polymer resin cover film so that the dimensional accuracy of the bonded terminal portion can be improved.

摘要翻译： 薄膜磁头的导体膜端子由Au膜构成，柔性印刷电路板的引线端子被Au层覆盖，使得这两个端子可以直接通过Au和Au之间的低温超声波接合 。 柔性印刷电路板的引线端子的相对表面被粘合并固定到柔性聚合物树脂覆盖膜上，从而可以提高接合端子部分的尺寸精度。

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。

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。