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    Composite magnetic head having thin conductor film
    2.
    发明授权
    Composite magnetic head having thin conductor film 失效
    具有薄导体膜的复合磁头

    公开(公告)号：US06014291A

    公开(公告)日：2000-01-11

    申请号：US263252

    申请日：1994-06-21

    申请人： Makoto Watanabe ,  Seiichi Ogata ,  Yoshito Ikeda ,  Kyu Kanno

    发明人： Makoto Watanabe ,  Seiichi Ogata ,  Yoshito Ikeda ,  Kyu Kanno

    IPC分类号： G11B5/008 ,  G11B5/09 ,  G11B5/115 ,  G11B5/127 ,  G11B5/29 ,  G11B5/48 ,  G11B5/53 ,  G11B23/00 ,  G11B5/265

    CPC分类号： G11B5/29 ,  G11B5/115 ,  G11B5/127 ,  G11B5/1272 ,  G11B5/4893 ,  G11B5/531 ,  G11B5/534 ,  G11B23/0007 ,  G11B5/0086 ,  G11B5/09

    摘要： A magnetic head includes a first magnetic core half having a coil winding groove coupled to a second magnetic core half having an auxiliary core element accommodated in the coil winding groove, such that a magnetic gap is defined between joining faces of the first and second core halves. Alternatively, a composite magnetic head includes a pair of magnetic heads that have magnetic gaps with different azimuth angles from each other and disposed closely in an opposing relationship to each other in a head feeding direction so as to define respective track widths and a track pitch. A thin conductor film is formed on at least one of a pair of opposing faces of the magnetic heads for intercepting leakage fluxes from the magnetic gap of the other magnetic head. The thin conductor film has a thickness and is located such that the track pitch formed by the magnetic heads is substantially independent of the thickness of the thin conductor film. A method of producing a magnetic head includes forming a track width restricting groove on each of a pair of head core blocks. The blocks are fused together with glass when aligned with the restricting groove. An additional groove is formed at an angle substantially equal to the azimuth angle of the magnetic gap on at least one of the pairs of faces on the blocks and the blocks are cut in a direction substantially perpendicular to the bottom face of the additional groove.

    摘要翻译： 磁头包括第一磁芯半部，其具有耦合到具有容纳在线圈绕组槽中的辅助芯体的第二磁芯半部的线圈绕组槽，使得在第一和第二芯半部的接合面之间限定磁隙 。 或者，复合磁头包括一对磁头，它们具有彼此不同的方位角的磁隙，并且在磁头输送方向上以彼此相对的关系紧密地设置，以便限定相应的磁道宽度和磁道间距。 在磁头的一对相对面中的至少一个上形成薄导体膜，用于截取来自另一个磁头的磁隙的漏磁通。 薄导体膜具有厚度并且被定位成使得由磁头形成的轨道间距基本上与薄导体膜的厚度无关。 一种制造磁头的方法包括在一对磁头芯块的每一个上形成磁道宽度限制槽。 当与限制槽对准时，这些块与玻璃熔合在一起。 以与块上的至少一对面上的磁隙的方位角大致相等的角度形成附加的槽，并且在基本上垂直于附加槽的底面的方向上切割块。

    Magnetic head with groove positioned to identify head orientation
    3.
    发明授权
    Magnetic head with groove positioned to identify head orientation 失效
    具有凹槽的磁头定位以识别头部取向

    公开(公告)号：US5883766A

    公开(公告)日：1999-03-16

    申请号：US899045

    申请日：1997-07-23

    申请人： Seiichi Ogata ,  Tadashi Saito ,  Kumi Takahashi

    发明人： Seiichi Ogata ,  Tadashi Saito ,  Kumi Takahashi

    IPC分类号： G11B5/31 ,  G11B5/127 ,  G11B5/17 ,  G11B5/187 ,  G11B5/48 ,  G11B5/53 ,  G11B33/10 ,  G11B5/147

    CPC分类号： G11B5/531 ,  G11B5/127 ,  G11B5/17 ,  G11B33/10 ,  G11B5/187 ,  G11B5/4893

    摘要： In a magnetic head which can be mounted in large number on a rotating drum in large number and cope with a highfrequency band, a leading core and a trailing core can be easily discriminated from each other, and the type of a magnetic head can be easily identified. There is disclosed a magnetic head including a pair of magnetic head halfmembers obtained by forming magnetic metal layers serving as magnetic cores on a part on a nonmagnetic substrate and a thinfilm coil buried in the pair of magnetic head halfmembers, the pair of magnetic head halfmembers being joined to each other through a magnetic gap formed between the magnetic metal layer of one magnetic head halfmember and the magnetic metal layer of the other magnetic head halfmember, wherein an identification groove is formed in one magnetic head halfmember, and the formed identification groove makes the appearances of the pair of magnetic head halfmembers asymmetrical.

    摘要翻译： 在能够大量地安装在旋转鼓上的磁头中，能够容易地识别前导芯和后芯，并且可以容易地识别磁头的类型 确定。 公开了一种磁头，其包括通过在非磁性基板上的一部分上形成用作磁芯的磁性金属层和埋在所述一对磁头半部件中的薄膜线圈而获得的一对磁头半部件，所述一对磁头半部件为 通过形成在一个磁头半部件的磁性金属层与另一个磁头半部件的磁性金属层之间形成的磁隙彼此接合，其中在一个磁头半部件中形成识别槽，并且形成的识别槽使得 一对磁头半体不对称的外观。

    Magnetic head and method of manufacturing the same
    4.
    发明授权
    Magnetic head and method of manufacturing the same 失效
    磁头及其制造方法

    公开(公告)号：US6038109A

    公开(公告)日：2000-03-14

    申请号：US811639

    申请日：1997-03-05

    申请人： Seiichi Ogata ,  Tadashi Saito ,  Shinji Takahashi ,  Teruo Inaguma

    发明人： Seiichi Ogata ,  Tadashi Saito ,  Shinji Takahashi ,  Teruo Inaguma

    IPC分类号： G11B5/31 ,  G11B5/105 ,  G11B5/127 ,  G11B5/17 ,  G11B5/53

    CPC分类号： G11B5/17 ,  G11B5/105 ,  G11B5/127 ,  G11B5/1272 ,  G11B5/53

    摘要： According to a magnetic head and a method of manufacturing the same, a connecting process required when a magnetic head is attached to a head base can be implemented with ease. A pair of magnetic core half blocks (3, 4) are joined to form a magnetic core for forming a closed magnetic circuit. A thin film coil (6) is formed on the joint surface in which the magnetic core half blocks (3, 4) are joined. Terminals (7) of the thin film coil (6) are formed on the same plane of a head side surface (10a) intersecting the above-mentioned joint surface, resulting in a magnetic head (10) being constructed.

    摘要翻译： 根据磁头及其制造方法，可以容易地实现将磁头安装在头座上所需的连接处理。 一对磁芯半块（3,4）被接合以形成用于形成闭合磁路的磁芯。 在磁芯半块（3,4）接合的接合面上形成薄膜线圈（6）。 薄膜线圈（6）的端子（7）形成在与上述接合面相交的头侧面（10a）的同一平面上，构成磁头（10）。

    Magnetic head and a digital recording magnetic head
    7.
    发明授权
    Magnetic head and a digital recording magnetic head 失效
    磁头和数字记录磁头

    公开(公告)号：US5471355A

    公开(公告)日：1995-11-28

    申请号：US216599

    申请日：1994-03-22

    申请人： Seiichi Ogata ,  Moriyuki Kawaguchi ,  Keiji Kanota ,  Yukio Kubota ,  Heikichi Sato ,  Iwao Abe

    发明人： Seiichi Ogata ,  Moriyuki Kawaguchi ,  Keiji Kanota ,  Yukio Kubota ,  Heikichi Sato ,  Iwao Abe

    IPC分类号： G11B5/09 ,  G11B5/48 ,  G11B5/53 ,  G11B20/12 ,  G11B27/032 ,  G11B27/036 ,  H04N9/804 ,  H04N9/806 ,  G11B5/02 ,  G11B5/027 ,  G11B5/127

    CPC分类号： G11B5/4893 ,  G11B20/1208 ,  G11B27/036 ,  G11B5/09 ,  G11B5/534 ,  H04N9/8042 ,  H04N9/8047 ,  H04N9/8066 ,  G11B2220/90 ,  G11B27/032

    摘要： A magnetic head comprises a head base (56), and a pair of magnetic head chips (57, 58) of different azimuth angles (.theta..sub.1, .theta..sub.2) disposed on the head base (56). The pair of magnetic head chips (57, 58) are disposed in a stepped arrangement with respect to the direction of arrangement of tracks on a magnetic recording medium with a step (DA) substantially equal to the pitch (P) of tracks on the magnetic recording medium. The gap distance (GL) between the magnetic gaps of the magnetic head chips (57, 58) is shorter than the sum of the step (D) between adjacent tracks and the length (L) of interblock gap regions between video signal regions and audio signal regions arranged along the direction of the movement of the magnetic head. The magnetic head permits satisfactory audio signal after-recording and extended recording and reproducing of digital video signals on the magnetic recording medium even if the magnetic recording medium is a narrow magnetic tape of 8 mm or less in width.

    摘要翻译： 磁头包括头基座（56）和设置在头座（56）上的不同方位角（θ1，θ2）的一对磁头芯片（57,58）。 一对磁头芯片（57,58）相对于在磁记录介质上的轨道的布置方向呈阶梯状布置，其步长（DA）基本上等于磁性磁道上的磁道间距（P） 记录介质。 磁头芯片（57,58）的磁隙之间的间隙距离（GL）比相邻轨迹之间的台阶（D）和视频信号区域和音频之间的块间间隙区域的长度（L）的和短 信号区域沿着磁头的移动方向布置。 即使磁记录介质是宽度为8mm或更小的窄磁带，磁头也允许在磁记录介质上令人满意的音频信号后记录和数字视频信号的扩展记录和再现。