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1.发明申请公开(公告)号：US20050237673A1
公开(公告)日：2005-10-27
申请号：US11114035
申请日：2005-04-26
CPC分类号： G11B5/3173 , B24B19/26 , G11B5/3163 , G11B5/3166 , Y10T29/49004 , Y10T29/49048
摘要： A method is presented for grinding a surface of an elongate bar having a plurality of thin film magnetic elements aligned in a line, each of the thin film magnetic elements having a magnetoresistive sensor for reading a magnetic record from a recording medium and an inductive electromagnetic transducer for writing a magnetic record into the recording medium in a stacked structure, the surface of the bar being a grind surface so that it can be formed into an air-bearing surface by means of the grinding. The method has steps of providing first resistive films on the grind surface in advance along a first longitudinal line parallel to a longitudinal direction of the bar, and providing second resistive films on the grind surface in advance along a second longitudinal line parallel to the longitudinal direction of the bar. The method further has a step of grinding the grind surface while pressing the bar against a rotating grinding disc with the longitudinal direction of the bar positioned toward a radial direction of the grinding disc, measuring electric resistance values of the first and second resistive films, and controlling an amount that is ground of the grind surface in the longitudinal direction and a direction perpendicular to the longitudinal direction based on the electric resistance values of the first resistive film and the second resistive films.
摘要翻译： 提出了一种用于研磨细长条的表面的方法，所述细长条的表面具有排列成一行的多个薄膜磁性元件，每个薄膜磁性元件具有用于从记录介质读取磁记录的磁阻传感器和感应电磁换能器 为了以堆叠的结构将磁记录写入记录介质中，该条的表面是研磨表面，使得其可以通过研磨形成为空气轴承表面。 该方法具有以下步骤：沿着平行于条的纵向方向的第一纵向线预先在研磨表面上提供第一电阻膜，并且沿平行于纵向的第二纵向线预先在研磨表面上提供第二电阻膜 的酒吧。 该方法还具有如下步骤：在将棒压靠在旋转的研磨盘上的条件下研磨研磨表面，其中杆的纵向朝向研磨盘的径向方向，测量第一和第二电阻膜的电阻值，以及 基于第一电阻膜和第二电阻膜的电阻值，控制研磨表面在纵向方向上的垂直于纵向的方向的磨削量。
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2.发明授权公开(公告)号：US07384327B2
公开(公告)日：2008-06-10
申请号：US11114035
申请日：2005-04-26
CPC分类号： G11B5/3173 , B24B19/26 , G11B5/3163 , G11B5/3166 , Y10T29/49004 , Y10T29/49048
摘要： A method is presented for grinding a surface of an elongate bar having a plurality of thin film magnetic elements aligned in a line, each of the thin film magnetic elements having a magnetoresistive sensor for reading a magnetic record from a recording medium and an inductive electromagnetic transducer for writing a magnetic record into the recording medium in a stacked structure, the surface of the bar being a grind surface so that it can be formed into an air-bearing surface by means of the grinding. The method has steps of providing first resistive films on the grind surface in advance along a first longitudinal line parallel to a longitudinal direction of the bar, and providing second resistive films on the grind surface in advance along a second longitudinal line parallel to the longitudinal direction of the bar. The method further has a step of grinding the grind surface while pressing the bar against a rotating grinding disc with the longitudinal direction of the bar positioned toward a radial direction of the grinding disc, measuring electric resistance values of the first and second resistive films, and controlling an amount that is ground of the grind surface in the longitudinal direction and a direction perpendicular to the longitudinal direction based on the electric resistance values of the first resistive film and the second resistive films.
摘要翻译： 提出了一种用于研磨细长条的表面的方法，所述细长条的表面具有排列成一行的多个薄膜磁性元件，每个薄膜磁性元件具有用于从记录介质读取磁记录的磁阻传感器和感应电磁换能器 为了以堆叠的结构将磁记录写入记录介质中，该条的表面是研磨表面，使得其可以通过研磨形成为空气轴承表面。 该方法具有以下步骤：沿着平行于条的纵向方向的第一纵向线预先在研磨表面上提供第一电阻膜，并且沿平行于纵向的第二纵向线预先在研磨表面上提供第二电阻膜 的酒吧。 该方法还具有如下步骤：在将棒压靠在旋转的研磨盘上的条件下研磨研磨表面，其中杆的纵向朝向研磨盘的径向方向，测量第一和第二电阻膜的电阻值，以及 基于第一电阻膜和第二电阻膜的电阻值，控制研磨表面在纵向方向上的垂直于纵向的方向的磨削量。
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3.发明授权Thin-film magnetic head with heater spaced further from medium facing surface than split in shield 有权带有加热器的薄膜磁头与介质相对的表面进一步隔开，而不是在屏蔽中分开公开(公告)号：US07623322B2
公开(公告)日：2009-11-24
申请号：US11128192
申请日：2005-05-13
申请人： Tsuyoshi Umehara , Norikazu Ota , Katsumichi Tagami , Hiroki Matsukuma , Nobuya Oyama , Soji Koide , Yoshiyuki Mizoguchi , Kazuhide Yamada
发明人： Tsuyoshi Umehara , Norikazu Ota , Katsumichi Tagami , Hiroki Matsukuma , Nobuya Oyama , Soji Koide , Yoshiyuki Mizoguchi , Kazuhide Yamada
CPC分类号： G11B5/6064 , G11B5/3133
摘要： The present invention relates to a thin-film magnetic head with a heater. A thin-film magnetic head includes a substrate, a magnetic read head element that has a shield area and is formed on the substrate, a magnetic write head element that has a pole area and is formed on the opposite side of the substrate with respect to the magnetic read head element, an overcoat layer that covers the magnetic read head element and the magnetic write head element and is formed on the substrate, a heater that heats at least during the magnetic read head element or the magnetic write head element in operation and is formed in the overcoat layer, and a slit area that splits the shield area in a shield length direction and is made of lower thermal conductivity material than the one of the shield area.
摘要翻译： 本发明涉及具有加热器的薄膜磁头。 薄膜磁头包括基板，具有屏蔽区域并形成在基板上的磁读头元件，具有磁极区域的磁写头元件，并相对于基板形成在基板的相对侧上 磁读头元件，覆盖磁读头元件和磁写头元件并形成在基片上的外涂层，至少在磁读头元件或写磁头元件工作期间加热的加热器，以及 形成在外涂层中，以及狭缝区域，其在屏蔽长度方向上分割屏蔽区域，并且由比该屏蔽区域中的一个更低的导热性材料制成。
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4.发明授权Thin-film magnetic head with heater in overcoat multilayer, head gimbal assembly with thin-film magnetic head, and magnetic disk drive apparatus with head gimbal assembly 有权薄膜磁头带加热器的外罩多层，磁头万向架组件，带薄膜磁头，磁盘驱动装置带头万向架组件公开(公告)号：US07583479B2
公开(公告)日：2009-09-01
申请号：US11128305
申请日：2005-05-13
申请人： Tsuyoshi Umehara , Norikazu Ota , Katsumichi Tagami , Hiroki Matsukuma , Nobuya Oyama , Soji Koide , Yoshiyuki Mizoguchi , Kazuhide Yamada
发明人： Tsuyoshi Umehara , Norikazu Ota , Katsumichi Tagami , Hiroki Matsukuma , Nobuya Oyama , Soji Koide , Yoshiyuki Mizoguchi , Kazuhide Yamada
CPC分类号： G11B5/581 , G11B5/3106 , G11B5/3136 , G11B5/314 , G11B5/6064
摘要： A thin-film magnetic head according to the present invention comprises: a substrate; at least one magnetic head element formed on the substrate; an overcoat multilayer composed of a plurality of overcoat layers, formed on the substrate so as to cover the at least one magnetic head element; and at least one heating element to be heated at least during operation of the at least one magnetic head element, the at least one heating element provided in the overcoat multilayer, and a coefficient of thermal expansion of an overcoat layer located farthest from the substrate in the overcoat multilayer being smaller than a coefficient of thermal expansion of an overcoat layer located closest to the substrate in the overcoat multilayer.
摘要翻译： 根据本发明的薄膜磁头包括：基板; 形成在所述基板上的至少一个磁头元件; 形成在所述基板上以覆盖所述至少一个磁头元件的由多个外涂层构成的外涂层多层; 以及至少一个加热元件，至少在至少一个磁头元件的操作期间被加热，所述至少一个加热元件设置在外涂层多层中，以及位于最远离基底的外涂层的热膨胀系数 外涂层多层比在外涂层多层中最靠近基底的外涂层的热膨胀系数小。
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5.发明申请Thin-film magnetic head with a heater, head gimbal assembly with the thin-film magnetic head and magnetic disk drive apparatus with the head gimbal assembly 有权具有加热器的薄膜磁头，具有薄膜磁头的磁头万向架组件和磁头万向架组件的磁盘驱动装置公开(公告)号：US20060007594A1
公开(公告)日：2006-01-12
申请号：US11128192
申请日：2005-05-13
申请人： Tsuyoshi Umehara , Norikazu Ota , Katsumichi Tagami , Hiroki Matsukuma , Nobuya Oyama , Soji Koide , Yoshiyuki Mizoguchi , Kazuhide Yamada
发明人： Tsuyoshi Umehara , Norikazu Ota , Katsumichi Tagami , Hiroki Matsukuma , Nobuya Oyama , Soji Koide , Yoshiyuki Mizoguchi , Kazuhide Yamada
CPC分类号： G11B5/6064 , G11B5/3133
摘要： The present invention relates to a thin-film magnetic head with a heater. A thin-film magnetic head includes a substrate, a magnetic read head element that has a shield area and is formed on the substrate, a magnetic write head element that has a pole area and is formed on the opposite side of the substrate with respect to the magnetic read head element, an overcoat layer that covers the magnetic read head element and the magnetic write head element and is formed on the substrate, a heater that heats at least during the magnetic read head element or the magnetic write head element in operation and is formed in the overcoat layer, and a slit area that splits the shield area in a shield length direction and is made of lower thermal conductivity material than the one of the shield area.
摘要翻译： 本发明涉及具有加热器的薄膜磁头。 薄膜磁头包括基板，具有屏蔽区域并形成在基板上的磁读头元件，具有磁极区域的磁写头元件，并相对于基板形成在基板的相对侧上 磁读头元件，覆盖磁读头元件和磁写头元件并形成在基片上的外涂层，至少在磁读头元件或写磁头元件工作期间加热的加热器，以及 形成在外涂层中，以及狭缝区域，其在屏蔽长度方向上分割屏蔽区域，并且由比该屏蔽区域中的一个更低的导热性材料制成。
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6.发明申请Thin-film magnetic head with heater in overcoat multilayer, head gimbal assembly with thin-film magnetic head, and magnetic disk drive apparatus with head gimbal assembly 有权薄膜磁头带加热器的外罩多层，磁头万向架组件，带薄膜磁头，磁盘驱动装置带头万向架组件公开(公告)号：US20050270694A1
公开(公告)日：2005-12-08
申请号：US11128305
申请日：2005-05-13
申请人： Tsuyoshi Umehara , Norikazu Ota , Katsumichi Tagami , Hiroki Matsukuma , Nobuya Oyama , Soji Koide , Yoshiyuki Mizoguchi , Kazuhide Yamada
发明人： Tsuyoshi Umehara , Norikazu Ota , Katsumichi Tagami , Hiroki Matsukuma , Nobuya Oyama , Soji Koide , Yoshiyuki Mizoguchi , Kazuhide Yamada
CPC分类号： G11B5/581 , G11B5/3106 , G11B5/3136 , G11B5/314 , G11B5/6064
摘要： A thin-film magnetic head according to the present invention comprises: a substrate; at least one magnetic head element formed on the substrate; an overcoat multilayer composed of a plurality of overcoat layers, formed on the substrate so as to cover the at least one magnetic head element; and at least one heating element to be heated at least during operation of the at least one magnetic head element, the at least one heating element provided in the overcoat multilayer, and a coefficient of thermal expansion of an overcoat layer located farthest from the substrate in the overcoat multilayer being smaller than a coefficient of thermal expansion of an overcoat layer located closest to the substrate in the overcoat multilayer.
摘要翻译： 根据本发明的薄膜磁头包括：基板; 形成在所述基板上的至少一个磁头元件; 形成在所述基板上以覆盖所述至少一个磁头元件的由多个外涂层构成的外涂层多层; 以及至少一个加热元件，至少在至少一个磁头元件的操作期间被加热，所述至少一个加热元件设置在外涂层多层中，以及位于最远离基底的外涂层的热膨胀系数 外涂层多层比在外涂层多层中最靠近基底的外涂层的热膨胀系数小。
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公开(公告)号：US06956432B2
公开(公告)日：2005-10-18
申请号：US10152709
申请日：2002-05-22
CPC分类号： H03G1/04 , H03G3/3036 , H04B2001/0416
摘要： A first control unit reads out both specific frequencies and gain data corresponding to these specific frequencies, which have been stored into a first storage unit, and approximates gain data corresponding to an arbitrary frequency by way of a linear function to calculate the gain data by executing a formula. A D/A converter converts this gain data into a gain control signal, and supplies the gain control signal to a variable gain amplifier. The variable gain amplifier amplifies a transmission signal by a gain defined in response to a transmission frequency based upon the gain control signal.
摘要翻译： 第一控制单元读出已经存储到第一存储单元中的与这些特定频率相对应的特定频率和增益数据，并且通过线性函数近似对应于任意频率的增益数据，以通过执行 一个公式 D / A转换器将该增益数据转换成增益控制信号，并将增益控制信号提供给可变增益放大器。 可变增益放大器通过基于增益控制信号响应于发送频率限定的增益来放大发送信号。
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