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    Thin film head, producing method thereof and magnetic disk apparatus
    3.
    发明授权
    Thin film head, producing method thereof and magnetic disk apparatus 失效
    薄膜头及其制造方法和磁盘装置

    公开(公告)号：US07142392B2

    公开(公告)日：2006-11-28

    申请号：US11002498

    申请日：2004-12-03

    申请人： Shigekazu Ohtomo ,  Moriaki Fuyama ,  Nobuo Yoshida ,  Hiroshi Fukui

    发明人： Shigekazu Ohtomo ,  Moriaki Fuyama ,  Nobuo Yoshida ,  Hiroshi Fukui

    IPC分类号： G11B5/147

    CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/012 ,  G11B5/3116 ,  G11B5/313 ,  G11B5/332 ,  G11B5/3903 ,  G11B5/3967 ,  G11B2005/3996

    摘要： A thin film head having reading part and recording part having an upper magnetic pole front end layer and a lower magnetic pole having a lower magnetic main layer, a lower magnetic pole front end portion on the lower magnetic main layer, and a projection step portion on the lower magnetic pole front end portion. The upper magnetic pole front end layer has a magnetic pole expansion position and a length from an air bearing surface to the magnetic pole expansion position is less than a length from the air bearing surface to gap depth position of the lower magnetic pole front end portion.

    摘要翻译： 具有读取部分的薄膜头和具有上磁极前端层的记录部分和具有下磁性主层的下磁极，下磁性主体层上的下磁极前端部分和在下磁性主体层上的突出台阶部分 下磁极前端部分。 上磁极前端层具有磁极膨胀位置，从空气支承面到磁极伸长位置的长度小于从下侧磁极前端部的空气轴承面到间隙深度位置的长度。

    Magnetic storage/read system with read head including magnetoresistive element
    4.
    发明授权
    Magnetic storage/read system with read head including magnetoresistive element 失效
    具有读磁头的磁存储/读取系统，包括磁阻元件

    公开(公告)号：US5933297A

    公开(公告)日：1999-08-03

    申请号：US45189

    申请日：1993-04-13

    申请人： Hiroyuki Hoshiya ,  Katsuya Mitsuoka ,  Masaaki Sano ,  Reiko Arai ,  Susumu Soeya ,  Hiroshi Fukui ,  Moriaki Fuyama ,  Fumio Sato

    发明人： Hiroyuki Hoshiya ,  Katsuya Mitsuoka ,  Masaaki Sano ,  Reiko Arai ,  Susumu Soeya ,  Hiroshi Fukui ,  Moriaki Fuyama ,  Fumio Sato

    IPC分类号： G11B5/012 ,  G11B5/09 ,  G11B5/39 ,  G11B5/48 ,  H01F10/06

    CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/012 ,  G11B5/09 ,  G11B5/3903 ,  G11B5/3909 ,  G11B5/3919 ,  G11B5/3967 ,  G11B5/398 ,  G11B5/4886 ,  G11B2005/3996

    摘要： A magnetic storage/read system includes a recording medium for magnetically storing a signal and a magnetoresistive element which is driven relative to the recording medium. The magnetoresistive element may include a substrate, a first antiferromagnetic film, a first ferromagnetic film, a first nonmagnetic film, a soft magnetic film, a second nonmagnetic film, a second ferromagnetic film, and a second antiferromagnetic film, wherein the films are sequentially layered directly on the substrate with no intervening layer between any of the films. At least one of the first antiferromagnetic film and the second antiferromagnetic film may be made of nickel oxide. The first ferromagnetic film and the second ferromagnetic film have a first magnetization which is fixed in a predetermined direction, and the soft magnetic film has a second magnetization which is rotatable in response to a magnetic field from the recording medium such that an angle between a direction of the second magnetization and the predetermined direction in which the first magnetization is fixed varies in response to the magnetic field from the recording medium, thereby producing a magnetoresistive effect.

    摘要翻译： 磁存储/读取系统包括用于磁存储信号的记录介质和相对于记录介质驱动的磁阻元件。 磁阻元件可以包括基板，第一反铁磁膜，第一铁磁膜，第一非磁性膜，软磁膜，第二非磁性膜，第二铁磁膜和第二反铁磁膜，其中膜依次层叠 直接在衬底上，在任何膜之间没有中间层。 第一反铁磁膜和第二反铁磁膜中的至少一个可以由氧化镍制成。 第一铁磁膜和第二铁磁膜具有沿预定方向固定的第一磁化，并且软磁膜具有可响应于来自记录介质的磁场而旋转的第二磁化，使得在方向 第二磁化和第一磁化固定的预定方向响应于来自记录介质的磁场而变化，由此产生磁阻效应。

    Thermal head
    6.
    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
    7.
    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。

    Thin film head, producing method thereof and magnetic disk apparatus
    8.
    发明授权
    Thin film head, producing method thereof and magnetic disk apparatus 有权
    薄膜头及其制造方法和磁盘装置

    公开(公告)号：US07142391B2

    公开(公告)日：2006-11-28

    申请号：US09943507

    申请日：2001-08-31

    申请人： Shigekazu Ohtomo ,  Moriaki Fuyama ,  Nobuo Yoshida ,  Hiroshi Fukui

    发明人： Shigekazu Ohtomo ,  Moriaki Fuyama ,  Nobuo Yoshida ,  Hiroshi Fukui

    IPC分类号： G11B5/147

    CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/012 ,  G11B5/3116 ,  G11B5/313 ,  G11B5/332 ,  G11B5/3903 ,  G11B5/3967 ,  G11B2005/3996

    摘要： A lower magnetic pole front end portion is provided on a lower magnetic pole main layer, and then, an upper magnetic pole front end portion or an upper magnetic pole front end layer is formed on the flat surface so as to enhance the track width accuracy of thin film head. The height of the lower magnetic pole front end portion is increased so as to enhance the magnetic field intensity. A projection step portion having a width larger than that of the upper magnetic pole front end layer is provided on the lower magnetic pole front end portion. The unnecessary medium in-plane magnetic field can be thus reduced in the off-track position. The respective parts of the head are corrected, thereby realizing a high recording magnetic field intensity exceeding 716 kA/m (9000Oe).

    摘要翻译： 下磁极前端部设置在下磁极主层上，然后在平面上形成上磁极前端部或上磁极前端层，以提高轨道宽度精度 薄膜头。 下磁极前端部的高度增加，从而提高磁场强度。 具有比上磁极前端层宽的宽度的突出台阶部分设置在下磁极前端部分上。 因此，在离轨位置上可以减少不必要的介质平面内磁场。 头部的各部分被校正，从而实现超过716kA / m（9000Oe）的高记录磁场强度。

    Magnetoresistive element
    9.
    发明授权
    Magnetoresistive element 失效
    磁阻元件

    公开(公告)号：US06633465B2

    公开(公告)日：2003-10-14

    申请号：US09840869

    申请日：2001-04-25

    申请人： Hiroyuki Hoshiya ,  Katsuya Mitsuoka ,  Masaaki Sano ,  Reiko Arai ,  Susumu Soeya ,  Hiroshi Fukui ,  Moriaki Fuyama ,  Fumio Sato

    发明人： Hiroyuki Hoshiya ,  Katsuya Mitsuoka ,  Masaaki Sano ,  Reiko Arai ,  Susumu Soeya ,  Hiroshi Fukui ,  Moriaki Fuyama ,  Fumio Sato

    IPC分类号： G11B539

    CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/012 ,  G11B5/09 ,  G11B5/3903 ,  G11B5/3909 ,  G11B5/3919 ,  G11B5/3967 ,  G11B5/398 ,  G11B5/4886 ,  G11B2005/3996

    摘要： A magnetoresistive element includes a first antiferromagnetic film, a first magnetic film having a magnetization direction fixed by magnetic coupling with the first antiferromagnetic film, a second antiferromagnetic film, a second magnetic film having a magnetization direction fixed by magnetic coupling with the second antiferromagnetic film, a third magnetic film having a magnetization direction able to rotate in response to an applied magnetic field, a first nonmagnetic film disposed between the first magnetic film and the third magnetic film, and a second nonmagnetic film disposed between the second magnetic film and the third magnetic film. The third magnetic film is disposed between the first nonmagnetic film and the second nonmagnetic film, the first magnetic film is disposed between the first antiferromagnetic film and the first nonmagnetic film, and the second magnetic film is disposed between the second antiferromagnetic film and the second nonmagnetic film.

    摘要翻译： 磁阻元件包括第一反铁磁膜，具有通过与第一反铁磁膜的磁耦合固定的磁化方向的第一磁性膜，第二反铁磁膜，具有通过与第二反铁磁性膜耦合而固定的磁化方向的第二磁性膜， 具有响应于施加的磁场而能够旋转的磁化方向的第三磁性膜，设置在第一磁性膜和第三磁性膜之间的第一非磁性膜和设置在第二磁性膜和第三磁性膜之间的第二非磁性膜 电影。 第三磁性膜设置在第一非磁性膜和第二非磁性膜之间，第一磁性膜设置在第一反铁磁膜和第一非磁性膜之间，第二磁性膜设置在第二反铁磁膜和第二非磁性膜之间 电影。