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    Thin film magnetic recording head with very narrow track width performing high density recording at high driving frequency
    34.
    发明授权
    Thin film magnetic recording head with very narrow track width performing high density recording at high driving frequency 失效
    具有非常窄轨道宽度的薄膜磁记录头在高驱动频率下执行高密度记录

    公开(公告)号：US06091582A

    公开(公告)日：2000-07-18

    申请号：US48985

    申请日：1998-03-27

    申请人： Matahiro Komuro ,  Tomohiro Okada ,  Moriaki Fuyama ,  Tetsuo Ito ,  Hiroshi Fukui ,  Yohji Maruyama ,  Miki Hara ,  Hisashi Takano

    发明人： Matahiro Komuro ,  Tomohiro Okada ,  Moriaki Fuyama ,  Tetsuo Ito ,  Hiroshi Fukui ,  Yohji Maruyama ,  Miki Hara ,  Hisashi Takano

    IPC分类号： G11B5/012 ,  G11B5/31 ,  G11B5/39 ,  G11B5/147 ,  G11B5/23

    CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/012 ,  G11B5/3109 ,  G11B5/313 ,  G11B5/3143 ,  G11B5/3967 ,  G11B2005/3996 ,  Y10T29/49032 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/4906

    摘要： A thin film magnetic head is providing for recording with less blur having a high recording magnetic field, for use in a recording/reproduction separation type magnetic head and a magnetic recording/reproducing apparatus. The thin film magnetic head, in which a gap film of a recording head and a magnetic film in contact with the gap film have the same track width, includes an upper magnetic film of the recording head and an upper shield film of a magnetic resistive film, each having a width wider than the track width, and a cross section parallel to the air bearing surface of the upper magnetic film is reduced at a position less than a gap depth from the air bearing surface. The thin film magnetic head has a coil conductor sandwiched by a first magnetic film and a fourth magnetic film, a second magnetic body magnetically connected to the first magnetic film, a third magnetic body magnetically connected to the fourth magnetic film, and a magnetic gap sandwiched by the second and third magnetic films, in which an insulating and non-magnetic single film in contact with the second and third magnetic films covers at least the first magnetic film.

    摘要翻译： 薄膜磁头提供用于具有高记录磁场的较少模糊的记录，用于记录/再现分离型磁头和磁记录/再现装置。 其中记录头的间隙膜和与间隙膜接触的磁性膜具有相同的轨道宽度的薄膜磁头包括记录头的上部磁性膜和磁性电阻膜的上部屏蔽膜 各自具有比轨道宽度宽的宽度，并且平行于上部磁性膜的空气支承表面的横截面在比空气轴承表面小于间隙深度的位置处减小。 薄膜磁头具有由第一磁性膜和第四磁性膜夹持的线圈导体，与第一磁性膜磁性连接的第二磁性体，与第四磁性膜磁性连接的第三磁性体和夹在 通过第二和第三磁性膜，其中与第二和第三磁性膜接触的绝缘和非磁性单膜至少覆盖第一磁性膜。

    Thermal head
    39.
    发明授权
    Thermal head 失效
    热头

    公开(公告)号：US4617575A

    公开(公告)日：1986-10-14

    申请号：US760623

    申请日：1985-07-30

    申请人： Moriaki Fuyama ,  Katsumi Tamura ,  Isao Funyu ,  Isao Nunokawa ,  Masanobu Hanazono ,  Shigetoshi Hirastuka

    发明人： Moriaki Fuyama ,  Katsumi Tamura ,  Isao Funyu ,  Isao Nunokawa ,  Masanobu Hanazono ,  Shigetoshi Hirastuka

    IPC分类号： H01L49/00 ,  B41J2/335 ,  B41J2/345 ,  G01D15/10

    CPC分类号： B41J2/3351 ,  B41J2/33525 ,  B41J2/3353 ,  B41J2/3355 ,  B41J2/3357

    摘要： A thermal head which comprises an electrically insulating substrate, a glaze layer laid thereon, a heating resistor layer laid on the glaze layer, a plurality of first layer conductors laid on the heating resistor layer and provided at predetermined distances, a protective film laid on the heating resistor layer, and a plurality of second layer conductors counterposed to the first layer conductors and laid on the first layer conductors through an interlayer insulating film, where the interlayer insulating layer is in a two layer structure of an inorganic insulating material layer having a compressive stress and an organic insulating material layer, and the organic insulating material layer is positioned on the second layer conductor side. The thermal head as structured above is free from a problem of crack formation on the interlayer insulating layer, causing a short circuit and free from a problem of discontinuation of the second layer conductors.

    摘要翻译： 一种热敏头，包括电绝缘衬底，敷设在其上的釉层，铺在釉层上的加热电阻层，放置在加热电阻层上并以预定距离设置的多个第一层导体， 加热电阻层和与第一层导体相对的多个第二层导体，并通过层间绝缘膜放置在第一层导体上，其中层间绝缘层是具有压缩性的无机绝缘材料层的两层结构 应力和有机绝缘材料层，有机绝缘材料层位于第二层导体侧。 上述结构的热敏头没有在层间绝缘层上形成裂纹的问题，导致短路并且不会有中断第二层导体的问题。

    Surface hafnium-titanium carbide coated hard alloy and method
    40.
    发明授权
    Surface hafnium-titanium carbide coated hard alloy and method 失效
    表面铪 - 碳化钛涂层硬质合金及方法

    公开(公告)号：US4269899A

    公开(公告)日：1981-05-26

    申请号：US54274

    申请日：1979-07-02

    申请人： Moriaki Fuyama ,  Haruhiko Honda ,  Mitsuru Ura

    发明人： Moriaki Fuyama ,  Haruhiko Honda ,  Mitsuru Ura

    IPC分类号： B22F3/24 ,  B23B27/14 ,  C23C16/30 ,  C23C16/32 ,  C23C16/34 ,  C23C16/36 ,  C23C16/448 ,  C23C16/507 ,  C23C30/00 ,  B32B15/04

    CPC分类号： C23C30/005 ,  C23C16/32 ,  C23C16/34 ,  C23C16/36 ,  C23C16/4488 ,  C23C16/507 ,  Y10T428/24967 ,  Y10T428/24983 ,  Y10T428/31678

    摘要： A surface coated hard alloy material suitable for use as a material of cutting tools, anti-wear parts or the like in which high wear resistance, oxidation resistance and anti-weld characteristic are the essential requisites, and a method of producing the same. The material has a substrate of cemented carbide, cermet or the like material, a first coating layer of a hafnium compound and directly coating the substrate, a second coating layer of a solid solution of a hafnium compound and a titanium compound and coating the first coating layer, and a third coating layer of a titanium compound and coating the second coating layer. These coating layers are successively formed in a common reaction system, so that the adherence between the coating layers, as well as between the first coating layer and the substrate is remarkably improved. Also, the advantages of the hafnium compound layer and the titanium compound layer are effectively utilized to provide a high wear resistance, oxidation resistance and anti-weld characteristic of the final surface coated hard alloy material.

    摘要翻译： 适合用作高耐磨性，耐氧化性和抗焊接特性的切削工具，耐磨部件等的材料的表面涂覆的硬质合金材料及其制造方法。 该材料具有硬质合金，金属陶瓷等材料的基材，铪化合物的第一涂层并直接涂覆基材，铪化合物和钛化合物的固溶体的第二涂层，并涂覆第一涂层 层和第三涂层，并涂覆第二涂层。 这些涂层依次形成在共同的反应体系中，使得涂层之间以及第一涂层和基材之间的粘附性显着提高。 此外，有效地利用铪化合物层和钛化合物层的优点，以提供最终的表面涂覆的硬质合金材料的高耐磨性，抗氧化性和抗焊接特性。