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    Thin film magnetic head and method of making it
    2.
    发明授权
    Thin film magnetic head and method of making it 失效
    薄膜磁头及其制作方法

    公开(公告)号：US4422117A

    公开(公告)日：1983-12-20

    申请号：US254662

    申请日：1981-04-16

    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 ,  G11B5/39 ,  G11B5/12 ,  G11B5/20 ,  G11B5/22

    CPC分类号： G11B5/3903 ,  G11B5/3106 ,  G11B5/3163

    摘要： A thin film magnetic head has a substrate with thin film layers deposited thereon and a protector layer bonded by a bonding layer to the substrate, with the thin film layers interposed therebetween. The thin film layers includes components of an electromagnetic transducing means. The bonding layer is a glass having a working temperature at which a magnetic layer included in the thin film layers does not have the magnetic characteristics deteriorated to any substantial degree.The fusing of the glass for making the bonding layer is performed at a temperature below 450.degree. C.

    摘要翻译： 薄膜磁头具有沉积有薄膜层的基板和通过粘结层粘合到基板上的保护层，其间插入有薄膜层。 薄膜层包括电磁换能装置的部件。 接合层是具有工作温度的玻璃，其中包括在薄膜层中的磁性层的磁特性不会在任何程度上劣化。 用于制造粘合层的玻璃的熔合在450℃以下进行。

    Magnetic head arrangement
    3.
    发明授权
    Magnetic head arrangement 失效
    磁头布置

    公开(公告)号：US4409632A

    公开(公告)日：1983-10-11

    申请号：US208480

    申请日：1980-11-19

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

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

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

    CPC分类号： G11B5/313

    摘要： A magnetic head arrangement includes a spiral coil made of a thin layer and having a central opening. The spiral coil is deposited on a first layer of magnetic material in an electrically insulated manner. The arrangement further includes a second layer of magnetic material having a width wider than that of the central opening of the spiral coil and deposited on the spiral coil in an electrically insulated manner. A portion of the second layer located in the central opening of the spiral coil is magnetically connected with the first layer and another portion of the second layer located outside the spiral coil is held above the first layer to form a predetermined gap.

    摘要翻译： 磁头装置包括由薄层制成并具有中心开口的螺旋线圈。 螺旋线圈以电绝缘方式沉积在第一层磁性材料上。 该装置还包括第二层磁性材料，其宽度大于螺旋线圈中心开口的宽度，并以电绝缘方式沉积在螺旋线圈上。 位于螺旋线圈的中心开口中的第二层的一部分与第一层磁性连接，位于螺旋线圈外部的第二层的另一部分被保持在第一层上方以形成预定间隙。

    Thin film magnetic head and method for manufacturing the same
    4.
    发明授权
    Thin film magnetic head and method for manufacturing the same 失效
    薄膜磁头及其制造方法

    公开(公告)号：US4246620A

    公开(公告)日：1981-01-20

    申请号：US8335

    申请日：1979-01-31

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

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

    IPC分类号： G11B5/255 ,  G11B5/29 ,  G11B5/31 ,  G11B5/14 ,  G11B5/28 ,  G11B5/42

    CPC分类号： G11B5/3103 ,  G11B5/3133 ,  Y10T29/49044 ,  Y10T29/49062

    摘要： A thin film magnetic head having a contact surface which, when such magnetic head is in use, slidingly contacts a magnetic information carrier, such as a magnetic tape, drum or disc, for the information recording or reproduction. The magnetic head comprises a support substrate on which a thin magnetic layer and a non-magnetic layer are deposited in side-by-side relation to each other. The non-magnetic insulating layer has a wear resistance equal to or higher than that of the thin magnetic layer. A method for the manufacture of the thin film magnetic head is also disclosed.

    摘要翻译： 一种具有接触表面的薄膜磁头，当这种磁头在使用中时，它可滑动地接触诸如磁带，鼓或盘之类的磁信息载体，用于信息记录或再现。 磁头包括支撑基板，薄壁磁性层和非磁性层彼此并排地沉积在支撑基板上。 非磁性绝缘层的耐磨性等于或高于薄磁性层的耐磨性。 还公开了制造薄膜磁头的方法。

    Magnetic head and method of making the same
    5.
    发明授权
    Magnetic head and method of making the same 失效
    磁头及其制作方法

    公开(公告)号：US4127884A

    公开(公告)日：1978-11-28

    申请号：US782247

    申请日：1977-03-28

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

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

    IPC分类号： G11B5/127 ,  G11B5/17 ,  G11B5/31 ,  G11B5/39 ,  G11B5/30

    CPC分类号： G11B5/3903 ,  G11B5/31 ,  Y10S428/90

    摘要： A thin film type magnetic head, in which a conductor is accommodated within a groove formed in part of a ferromagnetic substrate constituting part of a magnetic core, and a ferromagnetic film is disposed on the conductor to constitute part of the magnetic core. With this structure, it is possible to reduce the number of steps of layers constituting the magnetic head for reducing damage or breakage of the stepped portions of the layers and also increase the core gap in a central part of the core so as to reduce leakage flux even in the thin film magnetic head as well as bettering dissipation of Joule heat produced in the conductor.

    摘要翻译： 导体容纳在形成在构成磁芯的一部分的铁磁性基板的一部分的槽内的铁磁型磁头和铁磁性膜，构成磁芯的一部分。 利用这种结构，可以减少构成磁头的层数，以减少层的阶梯部分的损伤或断裂，并且还增加芯的中心部分的芯间隙，以便减少漏磁通 即使在薄膜磁头中，以及导体中产生的焦耳热的消散也更好。

    Narrow track MR head with side shields
    6.
    发明授权
    Narrow track MR head with side shields 失效
    窄轨MR头与侧面屏蔽

    公开(公告)号：US4071868A

    公开(公告)日：1978-01-31

    申请号：US641185

    申请日：1975-12-16

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

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

    IPC分类号： G11B5/11 ,  G11B5/39 ,  G11B5/12 ,  G11B5/30

    CPC分类号： G11B5/3903 ,  G11B5/11

    摘要： A magnetic head consists of a magnetic flux converging core having a magnetic gap and a magnetoresistive effect element which forms a magnetic circuit and which is arranged in the same plane as the magnetic gap. The direction of thickness of the magnetic circuit is aligned with the direction of width of a track of a record medium, and shielding plates of ferromagnetic material are arranged on both sides of the plane.

    摘要翻译： 磁头由具有磁隙的磁通收敛芯和磁阻效应元件组成，磁阻效应元件形成磁路并且被布置在与磁隙相同的平面中。 磁路的厚度方向与记录介质的轨道的宽度方向一致，铁磁材料的屏蔽板布置在平面的两侧。

    Multi-element magnetic head
    7.
    发明授权
    Multi-element magnetic head 失效
    多元素磁头

    公开(公告)号：US4065797A

    公开(公告)日：1977-12-27

    申请号：US641224

    申请日：1975-12-16

    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： G11B5/33 ,  G11B5/39 ,  G11B23/00 ,  G11B5/12

    CPC分类号： G11B5/3925 ,  G11B23/0007 ,  G11B5/332 ,  G11B5/3903

    摘要： A multi-element made magnetic head having a plurality of magnetoresistive elements of a ferromagnetic material such as permalloy formed on a base of a ferromagnetic material such as ferrite is disclosed. The ferromagnetic material base is formed with a groove, which is common for all elements made extends parallel to the recording medium. It is filled with a non-magentic material such as glass, and the individual magnetoresistive elements are disposed so as to bridge the groove and are not adapted to be in direct frictional contact with the recording medium for reducing their wear. The magnetoresistive elements are also made to extend perpendicular to the recording medium so as to increase the head density or reduce the head pitch.

    摘要翻译： 公开了一种多元素制造的磁头，其具有形成在诸如铁氧体的铁磁材料的基底上的诸如坡莫合金的铁磁材料的多个磁阻元件。 铁磁材料基底形成有凹槽，所述凹槽对于与记录介质平行延伸的所有元件是常见的。 它填充有诸如玻璃之类的非磁性材料，并且各个磁阻元件设置成桥接沟槽，并且不适于与记录介质直接摩擦接触以减少其磨损。 磁阻元件也被制成垂直于记录介质延伸，以增加磁头密度或降低磁头间距。

    Thin-film magnetic head
    9.
    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
    10.
    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。