PERPENDICULAR MAGNETIC RECORDING HEAD HAVING FLARED PART
    1.
    发明申请
    PERPENDICULAR MAGNETIC RECORDING HEAD HAVING FLARED PART 有权
    具有弹性部分的全磁性记录头

    公开(公告)号:US20070236834A1

    公开(公告)日:2007-10-11

    申请号:US11697222

    申请日:2007-04-05

    CPC classification number: G11B5/3116 G11B5/1278 G11B5/1871

    Abstract: A perpendicular magnetic recording head includes a nonmagnetic insulating layer and a main magnetic pole layer disposed on the nonmagnetic insulating layer. The main magnetic pole layer includes a pole straight part exposed in an opposing surface opposite a recording medium and a flared part that extends from the pole straight part in a height direction. The flared part broadens in a track width direction as the flared part extends in the height direction. The pole straight part of the main magnetic pole layer as viewed from the opposing surface has a trapezoidal shape over its entire length, the trapezoidal shape being narrowed at the nonmagnetic insulating layer-side. The flared part as viewed from the opposing surface has a trapezoidal shape at least at a junction with the pole straight part, the trapezoidal shape being narrowed at the nonmagnetic insulating layer-side.

    Abstract translation: 垂直磁记录头包括非磁性绝缘层和设置在非磁性绝缘层上的主磁极层。 主磁极层包括暴露在与记录介质相对的相对表面中的极直部分和在高度方向上从极直部分延伸的扩张部分。 当扩张部分在高度方向上延伸时,扩口部分在轨道宽度方向上变宽。 从相对表面观察,主磁极层的极直部分在整个长度上具有梯形形状,梯形形状在非磁性绝缘层侧变窄。 从相对表面观察的扩口部分至少在与极直部分的接合处具有梯形形状,梯形形状在非磁性绝缘层侧变窄。

    MANUFACTURING METHOD OF MAGNETO-RESISTANCE EFFECT ELEMENT
    6.
    发明申请
    MANUFACTURING METHOD OF MAGNETO-RESISTANCE EFFECT ELEMENT 有权
    磁阻效应元件的制造方法

    公开(公告)号:US20110256642A1

    公开(公告)日:2011-10-20

    申请号:US13087054

    申请日:2011-04-14

    CPC classification number: H01L43/12 B82Y25/00 G01R33/093

    Abstract: The present invention provides a manufacturing method of a magneto-resistance effect element, in which the step coverage of a formed film can be enlarged and also the film can be deposited in a low temperature range. In an embodiment of the present invention, an insulating protective layer is formed on a multilayered structure by a plasma CVD apparatus in which a plasma source and a film deposition chamber are separated from each other by a partition wall plate. According to the present method, it is possible to deposit the protective layer without inviting the degradation of a magnetic characteristic and also to perform low temperature film deposition even at a temperature lower than 150° C. Hence, it is possible to deposit the protective layer while leaving resist and also to reduce the number of steps in the manufacturing of the magneto-resistance effect element having a multilayered structure.

    Abstract translation: 本发明提供了一种磁阻效应元件的制造方法,其中可以扩大所形成的膜的台阶覆盖率,并且还可以在低温范围内沉积膜。 在本发明的一个实施例中,通过等离子体CVD装置在多层结构上形成绝缘保护层,其中等离子体源和成膜室通过分隔壁彼此分开。 根据本方法,可以在不引起磁特性劣化的情况下沉积保护层,并且即使在低于150℃的温度下也可进行低温膜沉积。因此,可以将保护层 同时留下抗蚀剂,并且还减少制造具有多层结构的磁阻效应元件的步骤数。

    Magnetic head and manufacturing method thereof
    8.
    发明申请
    Magnetic head and manufacturing method thereof 有权
    磁头及其制造方法

    公开(公告)号:US20050243466A1

    公开(公告)日:2005-11-03

    申请号:US11115621

    申请日:2005-04-27

    CPC classification number: G11B5/265

    Abstract: A magnetic head and a manufacturing method thereof which can suppress side fringing and permeation of a recording magnetic field in the first direction while maintaining the intensity of a recording magnetic field. By making a length of a trailing upper surface of a front portion in a height direction longer than a length of a leading lower surface of the front portion in the height direction, a generated magnetic field of the trailing upper surface can be comparatively weakened, to suppress side fringing and magnetic field permeation of a recording magnetic field. The recording magnetic field can be kept large enough by shortening the length of the leading lower surface in the height direction to intensify a generated magnetic field generated from the leading side.

    Abstract translation: 一种磁头及其制造方法,其能够在保持记录磁场的强度的同时抑制记录磁场在第一方向上的侧边缘和渗透。 通过使高度方向上的前部的后部上表面的长度比前部的前部下表面的高度方向的长度长,可以相对削弱后方上表面的产生的磁场, 抑制记录磁场的侧边缘和磁场渗透。 记录磁场可以通过缩小前导下表面在高度方向上的长度来保持足够大,从而增强从前端产生的产生的磁场。

    Process for producing optically active aminoalcohol
    9.
    发明授权
    Process for producing optically active aminoalcohol 失效
    光学活性氨基醇的制备方法

    公开(公告)号:US06743944B1

    公开(公告)日:2004-06-01

    申请号:US10070365

    申请日:2002-03-06

    Abstract: An industrially advantageous process for producing optically active 4-amino-2-methylbutane-1-ol which is useful as an intermediate in synthesizing optically active medicines and pesticides. Racemic 4-amino-2-methylbutane-1-ol is treated with an optically active organic acid. The diastereomeric salt thus obtained is crystallized out and subjected to solid-liquid separation to give optically active 4-amino-2-methylbutane-1-ol. The diastereomeric salt of optically active 4-amino-2-methylbutane-1-ol with an optically active reagent for optical resolution is decomposed by bringing into contact with a solvent and an alkali and subjected to solid-liquid separation, thereby recovering the optically active 4-amino-2-methylbutane-1-ol from the filtrate. Further, the filtration residue containing the alkali salt of the reagent for optical resolution obtained by the solid-liquid separation is brought into contact with a solvent and an acid. Then the reagent for optical resolution thus crystallized out is subjected to solid-liquid separation and recovered.

    Abstract translation: 用于制备光学活性4-氨基-2-甲基丁-1-醇的工业上有利的方法,其可用作合成光学活性药物和农药的中间体。 外消旋4-氨基-2-甲基丁-1-醇用光学活性有机酸处理。 将所得非对映体盐结晶出来,进行固液分离,得到光学活性的4-氨基-2-甲基丁-1-醇。 光学活性的4-氨基-2-甲基丁烷-1-醇与光学活性剂的光学拆分的非对映盐通过与溶剂和碱接触进行分解,进行固液分离,由此回收光学活性物质 4-氨基-2-甲基丁烷-1-醇。 此外,含有通过固液分离获得的用于光学拆分的试剂的碱金属盐的过滤残渣与溶剂和酸接触。 然后将由此结晶的光学拆分试剂进行固液分离并回收。

    Process for producing malonic acid derivatives
    10.
    发明授权
    Process for producing malonic acid derivatives 有权
    生产丙二酸衍生物的方法

    公开(公告)号:US06238896B1

    公开(公告)日:2001-05-29

    申请号:US09367716

    申请日:1999-08-20

    Abstract: The present invention relates to a method for preparing a malonic acid monoester represented by Formula (II): HOOCCH2COOR  (II) wherein R is alkenyl, aryl, aralkyl or C1-20 alkyl, comprising treating a cyanoacetic acid ester represented by Formula (I): NCCH2COOR  (I) wherein R is defined in Formula (II), with a culture, cells or a product from treated cells of a microorganism belonging to the genus Corynebacterium, Gordona or Rhodococcus and having nitrilase activity to thereby hydrolyze the cyanoacetic acid ester.

    Abstract translation: 本发明涉及一种制备由式(II)表示的丙二酸单酯的方法:其中R是烯基,芳基,芳烷基或C 1-20烷基,包括处理由式(I)表示的氰基乙酸酯:其中R是 与式(II)中定义的具有来自属于棒杆菌属,戈多纳或红球菌属的微生物的处理细胞的培养物,细胞或产物,并且具有腈水解酶活性,从而水解氰基乙酸酯。

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