Recording/reproducing separated type magnetic head having differential bias type magnetic domain control structure
    1.
    发明授权
    Recording/reproducing separated type magnetic head having differential bias type magnetic domain control structure 失效
    具有差分偏置型磁畴控制结构的记录/再现分离式磁头

    公开(公告)号:US07154714B2

    公开(公告)日:2006-12-26

    申请号:US10464574

    申请日:2003-06-19

    IPC分类号: G11B5/39

    摘要: A recording/reproducing separated type magnetic head comprising a first magnetic domain control layer for arranging the magnetizing direction of a free layer included in a magneto-resistive element to a predetermined direction, and a second magnetic domain control layer for generating a magnetic field in the direction opposite thereto to constitute a differential type bias structure. The recording/reproducing separated type magnetic head decreases an excessively strengthened longitudinal bias magnetic field in a central portion at a narrow track width while avoiding decrease of the fixed magnetic field at the end of the magneto-resistive element in the direction of the track width.

    摘要翻译: 一种记录/再现分离型磁头,包括用于将包括在磁阻元件中的自由层的磁化方向排列到预定方向的第一磁畴控制层,以及用于在第一磁畴控制层中产生磁场的第二磁畴控制层 相反的方向构成差分型偏压结构。 记录/再现分离型磁头减小了在窄轨道宽度的中心部分中的过度增强的纵向偏置磁场,同时避免了磁阻元件末端在磁道宽度方向上的固定磁场的减小。

    Magnetic head with a narrow spacing between magnetic shields at air bearing surface
    2.
    发明授权
    Magnetic head with a narrow spacing between magnetic shields at air bearing surface 失效
    磁头在空气轴承表面的磁屏蔽之间具有窄的间距

    公开(公告)号:US07586715B2

    公开(公告)日:2009-09-08

    申请号:US11336185

    申请日:2006-01-20

    IPC分类号: G11B5/39

    摘要: Even if the track and gap widths are made narrow in a read head, a narrow track head has so far been unable to afford satisfactory off-track characteristics because of a wide shield spacing over electrodes. The invention provides a magnetic head wherein, in the height direction of a magnetoresistive element, the spacing between an upper magnetic shield and a lower magnetic shield at an air bearing surface is narrower than the spacing between the upper and lower magnetic shields formed over a thickest portion of each of electrodes in contact with associated magnetic domain control layers.

    摘要翻译: 即使轨道和间隙宽度在读取头中变窄,由于在电极上的屏蔽间隔较宽,所以窄轨道头部迄今为止不能提供令人满意的离轨特性。 本发明提供一种磁头,其中在磁阻元件的高度方向上,在空气支承表面上的上磁屏蔽和下磁屏蔽之间的间隔比形成在最厚的上磁屏蔽之间的间隔窄 每个电极的部分与相关的磁畴控制层接触。

    Magnetic head of magnetoresistance effect type with high resistance to external stress
    3.
    发明申请
    Magnetic head of magnetoresistance effect type with high resistance to external stress 有权
    具有高耐外部应力的磁阻效应型磁头

    公开(公告)号:US20080074803A1

    公开(公告)日:2008-03-27

    申请号:US11900533

    申请日:2007-09-11

    IPC分类号: G11B5/33

    CPC分类号: G11B5/39

    摘要: Embodiments of the present invention prevent a pinned layer from suffering magnetization reversal by external stress in a magnetic head of magnetoresistance effect type which has a synthetic ferri-magnetic pinned layer structure with an antiferromagnetic layer of IrMnCr. According to one embodiment, a read element of a magnetoresistive head is made up of a antiferromagnetic layer, a first pinned layer, an antiferromagnetically coupled layer 4, a second pinned layer, and a free layer, which are stacked one over another. The first and second pinned layers and have a composition of Co75Fe25 and Co95Fe5, respectively, and a thickness of 18 Å (3.5 nm·T) and 21 Å (3.9 nm·T), respectively, so as to reduce the difference in anisotropic energy between the first pinned layer in contact with the antiferromagnetic layer and the second pinned layer in contact with the nonmagnetic conductive layer. In this way it is possible to reduce the difference |λ1−λ2| in magnetostriction constant between the first and second pinned layers and below 5.0×10−6. Thus it is possible to protect the pinned layer from external stress and magnetic field which rotate the direction of magnetization.

    摘要翻译: 本发明的实施例通过具有IrMnCr反铁磁性层的合成铁磁性固定层结构的磁阻效应型磁头防止被钉扎层受到外部应力的磁化反转。 根据一个实施例,磁阻头的读取元件由反铁磁层,第一被钉扎层,反铁磁耦合层4,第二钉扎层和自由层叠加而成。 第一和第二被钉扎层分别具有Co Fe 25 ,并且分别具有18(3.5nm.T)和21(3.9nm.T)的厚度,以便减少与反铁磁层接触的第一被钉扎层与第二被钉扎层之间的各向异性能的差异 与非磁性导电层接触。 以这种方式,可以减小| lambda1-lambda2 |的差异 在第一和第二被钉扎层之间的磁致伸缩常数以及5.0×10 -6以下。 因此,可以保护被钉扎层免受旋转磁化方向的外部应力和磁场。

    Method and apparatus for generating finite element meshes, and analyzing
method and apparatus
    6.
    发明授权
    Method and apparatus for generating finite element meshes, and analyzing method and apparatus 失效
    用于生成有限元网格的方法和装置,以及分析方法和装置

    公开(公告)号:US5838594A

    公开(公告)日:1998-11-17

    申请号:US591793

    申请日:1996-01-25

    申请人: Shuichi Kojima

    发明人: Shuichi Kojima

    CPC分类号: G06T17/20

    摘要: A finite element mesh generating method generates triangular meshes used in finite element method analysis. This finite element mesh generating method includes the steps of (a) inputting orthogonal meshes used in finite difference method and mesh joining conditions, (b) setting flags indicating candidates of lattice points which are to be deleted out of lattice points of the orthogonal meshes, based on the orthogonal meshes, (c) reducing a number of meshes by joining the lattice points having the set flag and lattice points adjacent thereto, based on the mesh joining conditions, and (d) successively generating triangular meshes by searching nodes formed by lattice points remaining on the meshes after joining the lattice points and generating oblique sides of rectangles which are formed by connecting the nodes.

    摘要翻译: 有限元网格生成方法生成有限元方法分析中使用的三角形网格。 该有限元网格生成方法包括以下步骤:(a)输入在有限差分法中使用的正交网格和网格连接条件,(b)将指示要被删除的格点的候选的标志设置在正交网格的格点之外, 基于所述正交网格,(c)基于所述网格连接条件,通过连接具有所述设置标志的格点和与其相邻的格点来减少多个网格,以及(d)通过搜索由格子形成的节点连续生成三角形网格 在连接晶格点之后,剩余在网格上的点,并且通过连接节点形成矩形的斜边。

    Weft supply changing and threading apparatus
    7.
    发明授权
    Weft supply changing and threading apparatus 失效
    纬纱供应改变和穿线装置

    公开(公告)号:US5329962A

    公开(公告)日:1994-07-19

    申请号:US935096

    申请日:1992-08-26

    摘要: A yarn supply system for a loom includes a yarn supply member changing apparatus for replacing a using yarn supply member with a new one when the weft yarn of the used yarn supply member has been used up or broken. The new yarn supply member is supplied to the yarn supply member changing apparatus at a mounting position from a self-propelled carriage. The new yarn supply member is carried to a yarn supply position by a carrying member movably mounted on the yarn supply member changing apparatus. A weft yarn wound on a bobbin forming part of the yarn supply member has a free tip end section which has been inserted into the central hole of the bobbin. The weft yarn tip end section of the yarn supply member at the yarn supply position of the yarn supply member changing position is drawn out of the bobbin and threaded into a weft winding arm forming part of a weft measuring and storing device under the influence of air stream. Thus, the weft yarn is supplied through the measuring and storing device to a weft inserting nozzle which projects the weft yarn into a warp yarn shed so as to accomplish a weft picking.

    摘要翻译: 用于织机的纱线供给系统包括:纱线供给部件更换装置,用于在使用过的纱线供给部件的纬纱已经用完或断裂时用新的纱线供给部件更换。 新的纱线供给部件在从自走式托架的安装位置供给纱线供给部件更换装置。 新的纱线供给构件通过可移动地安装在供纱构件更换装置上的承载构件被运送到纱线供给位置。 卷绕在形成纱线供给部件的筒管上的纬纱具有插入筒管中心孔的自由端部。 纱线供给部件的纱线供给部的纬纱前端部在纱线供给部件的变更位置被拉出筒管,并且在空气的影响下被卷入形成纬纱测量和存储装置的一部分的纬纱缠绕臂 流。 因此,纬纱通过测量和存储装置供应到纬纱插入喷嘴,其将纬纱投射到经纱梭口中,以便完成纬纱挑选。

    METHOD OF CALCULATING ION IMPLANTATION DISTRIBUTION AND PROGRAM IMPLEMENTING THE CALCULATION METHOD
    8.
    发明申请
    METHOD OF CALCULATING ION IMPLANTATION DISTRIBUTION AND PROGRAM IMPLEMENTING THE CALCULATION METHOD 审中-公开
    计算离子植入分布方法和程序实现计算方法

    公开(公告)号:US20090306913A1

    公开(公告)日:2009-12-10

    申请号:US12543965

    申请日:2009-08-19

    IPC分类号: G06F19/00 G01N23/00

    摘要: A method of calculating an ion concentration distribution is provided. The method includes: setting meshes at regular intervals d along a beam axis of a beam implanted at a tilt angle α; making mesh intervals on a surface d/sinα; generating meshes parallel and perpendicular to the beam axis in a simulator; and calculating an ion concentration distribution by using the meshes.

    摘要翻译: 提供了计算离子浓度分布的方法。 该方法包括:以沿倾斜角度α注入的光束的光束轴以规则的间隔d设置网格; 在表面d / sinalpha上形成网格间隔; 在模拟器中产生平行且垂直于光束轴的网格; 以及通过使用所述网格计算离子浓度分布。

    Motor drive unit
    9.
    发明授权
    Motor drive unit 失效
    电机驱动单元

    公开(公告)号:US07466086B2

    公开(公告)日:2008-12-16

    申请号:US11485025

    申请日:2006-07-12

    IPC分类号: H02P5/00

    CPC分类号: H02P21/06 H02P5/74 H02P5/747

    摘要: A motor drive unit comprises a DC power source, a plurality of inverter circuits for converting the a power of this DC power source to an AC power, current detectors for detecting an output current of at least one of those plurality of inverter circuits and a controller for performing PWM control of those plurality of inverter circuits. This controller is constructed in a way to synchronize a PWM period of the plurality of inverter circuits, so as to drive a plurality of motors at once by means of those plurality of inverter circuits respectively.

    摘要翻译: 电动机驱动单元包括直流电源,将该直流电源的功率转换为交流电的多个逆变器电路,用于检测这些多个逆变器电路中的至少一个的输出电流的电流检测器和控制器 用于执行那些多个逆变器电路的PWM控制。 该控制器以使多个逆变器电路的PWM周期同步的方式构成,以分别通过那些多个反相器电路一次驱动多个电动机。

    Magnetic head with magnetic domain control structure having anti-ferromagnetic layer and plural magnetic layers
    10.
    发明授权
    Magnetic head with magnetic domain control structure having anti-ferromagnetic layer and plural magnetic layers 失效
    具有磁畴控制结构的磁头具有反铁磁层和多个磁性层

    公开(公告)号:US07230803B2

    公开(公告)日:2007-06-12

    申请号:US10771312

    申请日:2004-02-05

    IPC分类号: G11B5/39

    摘要: A magneto-resistive effect head including: an antiferromagnetic layer; a pinned layer which is formed on the antiferromagnetic layer and whose magnetizing direction has been fixed; a spacer formed on the pinned layer; a free layer formed on the spacer; and magnetic domain control layers having antiferromagnetic flims and magnet layers for performing a magnetic domain control of the free layer; wherein the each of the antiferromagnetjc films is formed on the free layer; wherein the each of magnet layers has at least two magnetic films coupled anti-ferromagnetically through at least one nonmagnetic film; a pair of lead layers for supplying a current to the stack of layers; and wherein seed layers are formed between the antiferromagnetic films and the lead layers.

    摘要翻译: 磁阻效应头包括:反铁磁层; 形成在反铁磁层上并且其磁化方向已被固定的钉扎层; 形成在被钉扎层上的间隔物; 形成在间隔物上的自由层; 以及磁畴控制层,其具有用于对自由层进行磁畴控制的反铁磁性薄膜和磁铁层; 其中每个反铁磁膜形成在自由层上; 其中每个磁体层具有至少两个通过至少一个非磁性膜反铁磁耦合的磁膜; 一对用于向层叠层提供电流的引线层; 并且其中在反铁磁膜和引线层之间形成种子层。