会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 4. 发明公开
    • Thin-film magnetic head
    • 薄膜磁头
    • EP0521564A2
    • 1993-01-07
    • EP92201928.6
    • 1992-06-29
    • Philips Electronics N.V.
    • Ruigrok, Jacobus Josephus MariaPronk, Franciscus Antonius
    • G11B5/31G11B5/39
    • G11B5/3925G11B5/31G11B5/3967Y10T29/49039
    • Thin-film magnetic head comprising a substrate (2), an inductive element (23) and a magnetoresistive element (7) and three substantially parallel extending magnetically conducting flux guides (3, 4, 5) for magnetic cooperation with said elements. A non-magnetic read gap (17) adjacent to a head face (1) extends between a first flux guide (3) and a second flux guide (4) and a non-magnetic write gap (27) adjacent to the head face extends between the second flux guide and a third flux guide (5). Viewed from the substrate, the gaps are situated one behind the other. The second flux guide extending between the first flux guide and the third flux guide is built up layer by layer and comprises two soft-magnetic layers (4A, 4B) and an insulation layer (4C) of a non-magnetic material extending substantially parallel to the substrate and being situated between the soft-magnetic layers. The soft-magnetic layers are interconnected in a magnetically conducting manner proximate to the head face.
    • 包括基片(2),电感元件(23)和磁阻元件(7)以及三个基本上平行延伸的磁导磁通导向器(3,4,5)的薄膜磁头,用于与所述元件磁性配合。 邻近头部表面(1)的非磁性读取间隙(17)在第一通量导向件(3)和第二通量导向件(4)之间延伸,邻近头部表面的非磁性写入间隙(27)延伸 在第二通量引导件和第三通量引导件(5)之间。 从衬底上看,间隙一个接一个地位于后面。 在第一通量引导件和第三通量引导件之间延伸的第二通量引导件逐层地构建并且包括两个软磁层(4A,4B)和非磁性材料的绝缘层(4C),所述非磁性材料基本平行于 衬底并位于软磁层之间。 软磁层在磁头表面附近以导磁方式相互连接。
    • 6. 发明公开
    • Magnetic head, method for producing same, and magnetic recording and/or reproducing system
    • Magnetkopf,Herstellungsverfahren und Magnetaufzeichnungs- und / oder-wiedergabesystem
    • EP1143419A2
    • 2001-10-10
    • EP01302503.6
    • 2001-03-19
    • KABUSHIKI KAISHA TOSHIBA
    • Yoda, HiroakiFunayama, TomoniOsawa, Yuichi
    • G11B5/127G11B5/39G11B5/00
    • G11B5/3925G11B5/00G11B5/127G11B5/1278G11B5/3116G11B2005/0002G11B2005/0021Y10T29/49039Y10T29/49043Y10T29/49044Y10T29/49046Y10T29/49055Y10T29/49067
    • There is provided a magnetic head (1) capable of efficiently carrying out a recording or reproducing operation even in the case of a shorter magnetic path length and a shorter wavelength signal. The magnetic head (1) comprises: a pair of magnetic bodies (2a,2b) including respective first and second medium facing surfaces (3), respective first and second rear surfaces opposite to the medium facing surfaces, and respective inner side surfaces, the inner side surfaces facing each other; and a magnetic gap (4) disposed between the inner side surfaces and including third medium (3) facing surface coplanar with the first and the second medium facing surfaces and third rear surface coplanar with the first and second rear surfaces; one of the inner side surfaces satisfying relationships of

      x = G1/2 with respect to 0 ≦ y ≦ TH, and
      0.1 · tan{2(x-G1/2)} + TH ≦ y ≦ 5 · tan(2(x-G1/2)) +
      TH with respect to TH ≦ y
         where x represents X-coordinate of the one of the inner side surfaces and y represents Y-coordinate of the one of the inner side surfaces, the X-axis extends from a center of the third medium facing surface toward a center of the first or the second medium facing surface, the Y-axis extends from the center of the third medium facing surface toward the third rear surface, the Y-axis is substantially perpendicular to the X-axis, and G1 and TH respectively represent constants.
    • 提供了即使在较短的磁路长度和较短的波长信号的情况下也能够有效地执行记录或再现操作的磁头(1)。 磁头(1)包括:包括相应的第一和第二介质相对表面(3)的一对磁体(2a,2b),与介质相对表面相对的相应的第一和第二后表面以及相应的内侧表面, 内侧表面彼此面对; 以及设置在所述内侧表面之间并包括与所述第一和第二介质相对表面共面的第三介质(3)和与所述第一和第二后表面共面的第三后表面的磁隙(4) 一个内侧表面满足x = G1 / 2相对于0
    • 9. 发明公开
    • Method of manufacturing floating type magnetic head
    • Verfahren zur Herstellung eines schwimmenden Magnetkopfes。
    • EP0473092A2
    • 1992-03-04
    • EP91114263.6
    • 1991-08-26
    • SANYO ELECTRIC CO., LTD.
    • Ogawa, TakahiroInoue, AtsushiKoga, KazuhikoIto, KiyotakaUeta, Yutaka
    • G11B5/127G11B5/187
    • G11B5/1871G11B5/105G11B5/1272Y10T29/49039Y10T29/49043Y10T29/49057
    • A floating type composite magnetic head includes a head core (39) fixed to a slider (19) formed of nonmagnetic material. In the head core (39), a pair of magnetic core halves are abutted against each other with nonmagnetic material such as SiO₂ or the like interposed therebetween. The first and second magnetic core half members (22a and 22b) have first and second gap forming surfaces to be abutted against each other to define a magnetic gap (g), respectively. A first groove (23, 24) is formed on the second gap forming surface. A glass layer (25) is formed in the first groove (23, 24). A first thin film (30a) including a ferromagnetic metal thin film (27) is selectively formed on the first gap forming surface. A second thin film (30b) including a ferromagnetic metal thin film (32) is selectively formed on the second gap forming surface so that at least a portion except the surface of the glass layer (25) in the second gap forming surface is exposed. A second groove (35) is formed on the exposed second gap forming surface adjacent to the first groove (23, 24). The first and second magnetic core half members (22a and 22b) are abutted and bonded with glass so that the first and second gap forming surfaces face each other so that the first and second thin films (30a and 30b) are abutted with SiO₂ or the like interposed therebetween to define a magnetic gap (g). Causes of occurrence and an increase of false gaps are suppressed and a decrease in manufacturing yield due to separation of thin films or the like can be prevented.
    • 浮动式复合磁头包括固定到由非磁性材料形成的滑块(19)的磁头芯(39)。 在磁头芯(39)中,一对磁芯半部以非磁性材料如SiO 2等彼此抵靠。 第一和第二磁芯半体(22a和22b)具有分别彼此抵接以限定磁隙(g)的第一和第二间隙形成表面。 在第二间隙形成表面上形成有第一槽(23,24)。 玻璃层(25)形成在第一槽(23,24)中。 在第一间隙形成表面上选择性地形成包括强磁性金属薄膜(27)的第一薄膜(30a)。 在第二间隙形成表面上选择性地形成包括铁磁金属薄膜(32)的第二薄膜(30b),使得除了第二间隙形成表面中的玻璃层(25)的表面之外的至少一部分被暴露。 第二凹槽(35)形成在与第一凹槽(23,24)相邻的暴露的第二间隙形成表面上。 第一和第二磁芯半体(22a和22b)与玻璃抵接并接合,使得第一和第二间隙形成表面彼此面对,使得第一和第二薄膜(30a和30b)与SiO 2或 以形成磁隙(g)。 抑制了发生的原因和误差的增加,并且可以防止由于薄膜等的分离而导致的制造成品率的降低。