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公开(公告)号：US08232795B2
公开(公告)日：2012-07-31
申请号：US12816725
申请日：2010-06-16
申请人： Shunji Saruki , Hiraku Hirabayashi
发明人： Shunji Saruki , Hiraku Hirabayashi
CPC分类号： G01D3/036 , G01D5/24476
摘要： A magnetic sensor includes a first detection unit and a second detection unit. The first detection unit calculates a first detection angle which is a detected value of a first angle that a direction of an external magnetic field in a first position forms with respect to a first direction. The second detection unit calculates a second detection angle which is a detected value of a second angle that the direction of the external magnetic field in a second position forms with respect to a second direction. The first detection angle includes a first angular error. The second detection angle includes a second angular error. The first angular error and the second angular error differ in phase by an odd number of times ½ of the error period.
摘要翻译： 磁传感器包括第一检测单元和第二检测单元。 第一检测单元计算作为相对于第一方向形成第一位置的外部磁场的方向的第一角度的检测值的第一检测角度。 第二检测单元计算作为相对于第二方向形成第二位置的外部磁场的方向的第二角度的检测值的第二检测角度。 第一检测角度包括第一角度误差。 第二检测角度包括第二角度误差。 第一个角度误差和第二个角度误差的相位差异为误差周期的1/2倍。
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42.发明授权公开(公告)号：US07961428B2
公开(公告)日：2011-06-14
申请号：US11769497
申请日：2007-06-27
IPC分类号： G11B5/31
CPC分类号： G11B5/1278 , G11B5/11 , G11B5/3116 , G11B5/3136 , G11B5/3143
摘要： Provided is a thin-film magnetic having improved write characteristics in the high-frequency band. The head comprises an electromagnetic coil element comprising upper and lower magnetic layers, a write gap layer and a write coil layer, and in the electromagnetic coil element, at least one non-magnetic layer is provided within the upper magnetic layer, and further, an upper surface, a lower surface, at least a portion of a front surface and at least a portion of a rear surface of the non-magnetic layer are covered with magnetic material of at least one of the upper magnetic layer and the lower magnetic layer.
摘要翻译： 提供了在高频带中具有改进的写入特性的薄膜磁体。 头部包括包括上下磁性层的电磁线圈元件，写入间隙层和写入线圈层，并且在电磁线圈元件中，在上部磁性层内提供至少一个非磁性层，此外， 上表面，下表面，非磁性层的前表面的至少一部分和后表面的至少一部分被上磁性层和下磁性层中的至少一个的磁性材料覆盖。
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43.发明授权Method of manufacturing a thin-film magnetic head having an element having a lower layer with a narrower width 失效具有具有较窄宽度的下层的元件的薄膜磁头的制造方法公开(公告)号：US07810226B2
公开(公告)日：2010-10-12
申请号：US11723349
申请日：2007-03-19
申请人： Hiraku Hirabayashi , Yohei Koyanagi
发明人： Hiraku Hirabayashi , Yohei Koyanagi
CPC分类号： G11B5/3116 , G11B5/1278 , G11B5/3163 , Y10T29/49037 , Y10T29/49041 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052
摘要： A manufacturing method of a thin-film element having a lower layer with a narrower width is provided, which comprises steps of: forming a first film and a second film on the first film; forming a second layer having a width WUP obtained by trimming the second film; forming a mask film having a smaller etching rate than the first film so as to cover the second layer; forming a pattern having a width WTR larger than the width WUP, obtained by collectively trimming the mask film covering the second layer and at least an upper portion of the first film; and forming a first layer having a width WLO smaller than the width WUP or having a portion with a width WLO smaller than the width WUP, obtained by trimming the first film without changing the width WUP of the second layer.
摘要翻译： 提供了具有宽度较窄的下层的薄膜元件的制造方法，其包括以下步骤：在第一膜上形成第一膜和第二膜; 形成具有通过修整第二膜获得的宽度WUP的第二层; 形成具有比所述第一膜蚀刻速率小的掩模膜以覆盖所述第二层; 形成宽度大于宽度WUP的宽度的图案，其通过集中修整覆盖第二层的掩模膜和至少第一膜的上部而获得; 并且形成具有小于宽度WUP的宽度WLO或具有通过在不改变第二层的宽度WUP的情况下修剪第一膜而获得的宽度WLO小于宽度WUP的部分的第一层。
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公开(公告)号：US07649713B2
公开(公告)日：2010-01-19
申请号：US11334009
申请日：2006-01-18
IPC分类号： G11B5/127
CPC分类号： G11B5/3133 , G11B5/4826 , G11B5/6005 , G11B5/6064 , G11B2005/0005
摘要： A thin-film magnetic head that has an improved protrusion efficiency under the condition of not only assuring the reliability of the-heating operation, but also stabilizing the read output is provided. The head comprises: a magnetic head element for writing and/or reading data signals; a heating element for generating heat at least during operations of the magnetic head element; and a first heatsink element provided adjacent to the heating element for receiving a part of the heat generated from the heating element, the first heatsink element being a distance from the magnetic head element.
摘要翻译： 提供了在不仅确保加热操作的可靠性而且稳定读取输出的条件下具有改进的突出效率的薄膜磁头。 头部包括：用于写入和/或读取数据信号的磁头元件; 用于至少在磁头元件的操作期间产生热的加热元件; 以及与所述加热元件相邻设置的用于接收从所述加热元件产生的一部分热量的第一散热元件，所述第一散热元件距离所述磁头元件一定距离。
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45.发明授权Thin-film magnetic head, head gimbal assembly with thin-film magnetic head, head arm assembly with head gimbal assembly, magnetic disk drive apparatus with head gimbal assembly and manufacturing method of thin-film magnetic head 失效薄膜磁头，具有薄膜磁头的头万向架组件，带头万向架组件的头臂组件，头万向架组件的磁盘驱动装置和薄膜磁头的制造方法公开(公告)号：US07372667B2
公开(公告)日：2008-05-13
申请号：US11139697
申请日：2005-05-31
IPC分类号： G11B5/31
CPC分类号： G11B5/187 , G11B5/3116 , G11B5/3163
摘要： A thin-film magnetic head comprising an inductive element including at least: a lower magnetic pole; a write gap layer; and an upper magnetic pole opposed to the lower magnetic pole through the write gap layer, a width WP2 in a track-width direction at a facing-to-magnetic-medium top end of the upper magnetic pole being larger than a width WP1 in the track-width direction at a facing-to-magnetic-medium top end of the lower magnetic pole, and a distance FPDP2 between the top end of the upper magnetic pole and a flare point of the upper magnetic pole being smaller than a distance FPDP1 between the top end of the lower magnetic pole and a flare point of the lower magnetic pole, is provided.
摘要翻译： 一种薄膜磁头，包括至少包括下磁极的感应元件; 写间隙层; 以及通过写入间隙层与下部磁极相对的上部磁极，在上部磁极的面对磁性介质顶端的轨道宽度方向上的宽度W P2 大于在下磁极的面对磁介质顶端处的轨道宽度方向上的宽度W P1 P1和之间的距离FPD
P2 被提供。 -
公开(公告)号：US20060291098A1
公开(公告)日：2006-12-28
申请号：US11334009
申请日：2006-01-18
CPC分类号： G11B5/3133 , G11B5/4826 , G11B5/6005 , G11B5/6064 , G11B2005/0005
摘要： A thin-film magnetic head that has an improved protrusion efficiency under the condition of not only assuring the reliability of the-heating operation, but also stabilizing the read output is provided. The head comprises: a magnetic head element for writing and/or reading data signals; a heating element for generating heat at least during operations of the magnetic head element; and a first heatsink element provided adjacent to the heating element for receiving a part of the heat generated from the heating element, the first heatsink element being a distance from the magnetic head element.
摘要翻译： 提供了在不仅确保加热操作的可靠性而且稳定读取输出的条件下具有改进的突出效率的薄膜磁头。 头部包括：用于写入和/或读取数据信号的磁头元件; 用于至少在磁头元件的操作期间产生热的加热元件; 以及与所述加热元件相邻设置的用于接收从所述加热元件产生的一部分热量的第一散热元件，所述第一散热元件距离所述磁头元件一定距离。
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公开(公告)号：US20060077591A1
公开(公告)日：2006-04-13
申请号：US11214725
申请日：2005-08-31
申请人： Katsuki Kurihara , Taro Oike , Hiraku Hirabayashi , Norikazu Ota
发明人： Katsuki Kurihara , Taro Oike , Hiraku Hirabayashi , Norikazu Ota
IPC分类号： G11B5/41
CPC分类号： G11B5/3136 , G11B5/3106 , G11B5/314 , G11B5/6064 , G11B5/607
摘要： A thin-film magnetic head with a higher protrusion efficiency is provided, which comprises: a substrate with an air bearing surface (ABS); a read head element including a lower and upper shield layers, and a write head element including a magnetic pole layer; a heating element provided in a position opposite to the ABS in relation to the read and write head elements; and a heatsink element including a heatsink layer provided adjacent to an end opposite to an end in the ABS side of at least one layer of the lower and upper shield layers and the magnetic pole layer, the heatsink element having a shape that a pattern width in the track-width direction of an end portion in the ABS side is larger than a pattern width in the track-width direction of an end portion opposite to the end portion in the ABS side.
摘要翻译： 提供了具有更高突出效率的薄膜磁头，其包括：具有空气轴承表面（ABS）的基板; 包括下屏蔽层和上屏蔽层的读头元件和包括磁极层的写头元件; 相对于读写头元件设置在与ABS相反的位置的加热元件; 以及散热元件，其包括与所述下屏蔽层和上屏蔽层的至少一层的ABS侧中的端部相对的端部邻近设置的散热层，所述散热元件具有形状为 ABS侧的端部的轨道宽度方向大于与ABS侧的端部相反的端部的轨道宽度方向的图案宽度。
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公开(公告)号：US08786280B2
公开(公告)日：2014-07-22
申请号：US12845992
申请日：2010-07-29
申请人： Hiroshi Yamazaki , Hiraku Hirabayashi , Naoki Ohta
发明人： Hiroshi Yamazaki , Hiraku Hirabayashi , Naoki Ohta
IPC分类号： G01R33/02
CPC分类号： G01R33/091 , G01R33/0005
摘要： A magneto-resistance effect element for a sensor to sense a variation in externally applied magnetism includes a pinned layer having a fixed magnetization direction, a free layer having a magnetization direction which varies in response to an external magnetic field, and an intermediate layer provided between the pinned layer and the free layer. The pinned layer has a planar shape which is long in the fixed magnetization direction and which is short in a direction orthogonal to the fixed magnetization direction. Moreover, the pinned layer preferably has a planar shape in which the pinned layer is divided into a plurality of sections.
摘要翻译： 用于感测外部施加的磁性的变化的传感器的磁电阻效应元件包括具有固定的磁化方向的固定层，具有响应于外部磁场而变化的磁化方向的自由层，以及设置在 钉扎层和自由层。 被钉扎层具有在固定磁化方向上长的并且在与固定磁化方向正交的方向上短的平面形状。 此外，被钉扎层优选具有其中被钉扎层被分成多个部分的平面形状。
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49.发明授权公开(公告)号：US08295010B2
公开(公告)日：2012-10-23
申请号：US12053757
申请日：2008-03-24
CPC分类号： G11B5/314 , G11B5/02 , G11B2005/0005 , G11B2005/0021
摘要： The thermally assisted magnetic head comprises a medium-opposing surface; a magnetic recording device whose distance from a main magnetic pole to a medium is set longer than a distance from the medium-opposing surface to the medium; a first core for receiving light; and a second core positioned between a first light exit surface of the first core and the medium-opposing surface, having a second light exit surface on the medium side; while a distance between positions where an optical intensity distribution center within the first light exit surface and a center of the main magnetic pole are orthographically projected onto a reference plane including the second light exit surface is greater than a distance between an optical intensity distribution center within the second light exit surface and the position where the center of the leading end of the main magnetic pole is orthographically projected onto the reference plane.
摘要翻译： 热辅助磁头包括介质相对表面; 从主磁极到介质的距离设定为比从介质相对表面到介质的距离长的磁记录装置; 第一个接收光的核心; 以及位于所述第一芯的第一光出射面与所述介质相对面之间的第二芯，在所述介质侧具有第二光出射面; 而第一光出射面内的光强度分布中心与主磁极的中心的正交投影到包括第二光出射面的基准面的位置之间的距离大于第二光出射面的光强度分布中心之间的距离， 第二光出射表面和主磁极的前端的中心正交投影到参考平面上的位置。
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50.发明授权公开(公告)号：US07612965B2
公开(公告)日：2009-11-03
申请号：US11214725
申请日：2005-08-31
申请人： Katsuki Kurihara , Taro Oike , Hiraku Hirabayashi , Norikazu Ota
发明人： Katsuki Kurihara , Taro Oike , Hiraku Hirabayashi , Norikazu Ota
CPC分类号： G11B5/3136 , G11B5/3106 , G11B5/314 , G11B5/6064 , G11B5/607
摘要： A thin-film magnetic head with a higher protrusion efficiency is provided, which comprises: a substrate with an air bearing surface (ABS); a read head element including a lower and upper shield layers, and a write head element including a magnetic pole layer; a heating element provided in a position opposite to the ABS in relation to the read and write head elements; and a heatsink element including a heatsink layer provided adjacent to an end opposite to an end in the ABS side of at least one layer of the lower and upper shield layers and the magnetic pole layer, the heatsink element having a shape that a pattern width in the track-width direction of an end portion in the ABS side is larger than a pattern width in the track-width direction of an end portion opposite to the end portion in the ABS side.
摘要翻译： 提供了具有更高突出效率的薄膜磁头，其包括：具有空气轴承表面（ABS）的基板; 包括下屏蔽层和上屏蔽层的读头元件和包括磁极层的写头元件; 相对于读写头元件设置在与ABS相反的位置的加热元件; 以及散热元件，其包括与所述下屏蔽层和上屏蔽层的至少一层的ABS侧中的端部相对的端部邻近设置的散热层，所述散热元件具有形状为 ABS侧的端部的轨道宽度方向大于与ABS侧的端部相反的端部的轨道宽度方向的图案宽度。
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