公开(公告)号：US20100123966A1

公开(公告)日：2010-05-20

申请号：US12274470

申请日：2008-11-20

申请人： Yosuke ANTOKU ,  Takeo Kagami ,  Katsuki Kurihara ,  Taro Oike ,  Masashi Sano

发明人： Yosuke ANTOKU ,  Takeo Kagami ,  Katsuki Kurihara ,  Taro Oike ,  Masashi Sano

IPC分类号： G11B5/02

CPC分类号： G11B5/314 ,  G11B5/6064 ,  G11B5/607 ,  G11B5/6076 ,  G11B2005/0005

摘要： The present invention relates to a magnetic head, a head assembly, and a magnetic recording/reproducing apparatus which are capable of effectively detecting thermal asperity. The magnetic head according to the present invention includes a heat-generating resistor, a recording coil, and a resistive element. The heat-generating resistor is adapted to generate heat when power is fed thereto so that the heat generation causes at least a part of the air bearing surface to thermally expand and protrude. The recording coil is adapted to generate a recording magnetic field, and the resistive element is disposed closer to the air bearing surface than the recording coil and connected in series or in parallel with the heater. Thus, the resistive element can share a common wiring with the heater for power feeding, which eliminates the waste of wiring and achieves miniaturization.

摘要翻译： 本发明涉及能够有效地检测热凹凸的磁头，磁头组件和磁记录/重放装置。 根据本发明的磁头包括发热电阻器，记录线圈和电阻元件。 发热电阻适用于在供电时产生热量，使得发热导致空气轴承表面的至少一部分热膨胀和突出。 记录线圈适于产生记录磁场，并且电阻元件设置为比记录线圈更靠近空气轴承表面并与加热器串联或并联连接。 因此，电阻元件可以与用于供电的加热器共用公共布线，这消除了布线的浪费并实现了小型化。

公开(公告)号：US08144427B2

公开(公告)日：2012-03-27

申请号：US12274470

申请日：2008-11-20

申请人： Yosuke Antoku ,  Takeo Kagami ,  Katsuki Kurihara ,  Taro Oike ,  Masashi Sano

发明人： Yosuke Antoku ,  Takeo Kagami ,  Katsuki Kurihara ,  Taro Oike ,  Masashi Sano

IPC分类号： G11B5/10 ,  G11B5/56

CPC分类号： G11B5/314 ,  G11B5/6064 ,  G11B5/607 ,  G11B5/6076 ,  G11B2005/0005

摘要： The present invention relates to a magnetic head, a head assembly, and a magnetic recording/reproducing apparatus which are capable of effectively detecting thermal asperity. The magnetic head according to the present invention includes a heat-generating resistor, a recording coil, and a resistive element. The heat-generating resistor is adapted to generate heat when power is fed thereto so that the heat generation causes at least a part of the air bearing surface to thermally expand and protrude. The recording coil is adapted to generate a recording magnetic field, and the resistive element is disposed closer to the air bearing surface than the recording coil and connected in series or in parallel with the heater. Thus, the resistive element can share a common wiring with the heater for power feeding, which eliminates the waste of wiring and achieves miniaturization.

摘要翻译： 本发明涉及能够有效地检测热凹凸的磁头，磁头组件和磁记录/重放装置。 根据本发明的磁头包括发热电阻器，记录线圈和电阻元件。 发热电阻适用于在供电时产生热量，使得发热导致空气轴承表面的至少一部分热膨胀和突出。 记录线圈适于产生记录磁场，并且电阻元件设置为比记录线圈更靠近空气轴承表面并与加热器串联或并联连接。 因此，电阻元件可以与用于供电的加热器共用公共布线，这消除了布线的浪费并实现了小型化。

公开(公告)号：US08373947B1

公开(公告)日：2013-02-12

申请号：US13248590

申请日：2011-09-29

申请人： Tatsuhiro Nojima ,  Masashi Sano ,  Yosuke Antoku ,  Mutsumi Fujita ,  Isamu Toba ,  Norio Takahashi ,  Hideyuki Ukita

发明人： Tatsuhiro Nojima ,  Masashi Sano ,  Yosuke Antoku ,  Mutsumi Fujita ,  Isamu Toba ,  Norio Takahashi ,  Hideyuki Ukita

IPC分类号： G11B5/39

CPC分类号： G11B5/3106 ,  G11B5/6011

摘要： A magnetic head slider includes a magnetic recording part and/or a reproducing part. The magnetic head slider includes a resistance film having temperature dependence of electrical resistance, the resistance film being positioned in the vicinity of an air bearing surface or on the air bearing surface, separately from the magnetic recording part and the reproducing part. The magnetic head slider further includes a first protective film with a smaller milling rate than the resistance film, the first protective film contacting a lower surface of the resistance film in a lamination direction of the magnetic head slider and on the air bearing surface, and/or a second protective film with a smaller milling rate than the resistance film, the second protective film contacting an upper surface of the resistance film in the lamination direction of the magnetic head slider and on the air bearing surface.

摘要翻译： 磁头滑块包括磁记录部和/或再现部。 磁头滑动器包括具有电阻温度依赖性的电阻膜，电阻膜位于空气支承表面附近或空气支承表面附近，与磁记录部分和再现部分分开。 磁头滑块还包括具有比电阻膜更小的研磨速度的第一保护膜，第一保护膜在磁头滑块的层叠方向和空气轴承表面上接触电阻膜的下表面，和/ 或具有比电阻膜更小的研磨速度的第二保护膜，第二保护膜在磁头滑块的层叠方向和空气轴承表面上接触电阻膜的上表面。

公开(公告)号：US08085491B2

公开(公告)日：2011-12-27

申请号：US12659129

申请日：2010-02-26

申请人： Yosuke Antoku ,  Noboru Yamanaka ,  Masashi Sano ,  Kosuke Tanaka ,  Man Tse ,  Eric Cheuk Wing Leung ,  Luke Hung Leung Chung

发明人： Yosuke Antoku ,  Noboru Yamanaka ,  Masashi Sano ,  Kosuke Tanaka ,  Man Tse ,  Eric Cheuk Wing Leung ,  Luke Hung Leung Chung

IPC分类号： G11B2/21

CPC分类号： G11B5/6005 ,  G11B5/6064

摘要： For obtaining a flying height of a magnetic head from a magnetic disk, the magnetic head being placed in a slider arranged at an interval with the magnetic disk, an initial setting process and a flying height detecting process are performed. In the initial setting process, driving power to a heater is increased gradually, from a state where the heater arranged at a position in proximity to the magnetic head in the slider is not driven, until the magnetic head makes contact with the magnetic disk. Then, in each stage, an electrical resistance value of the sensor arranged at a position in proximity to the magnetic head in the slider, which is increased due to the heat from heater, and either an approach distance of the magnetic head toward the magnetic disk or the flying height of the magnetic head from the magnetic disk are acquired. Then, basic data is prepared by obtaining the relationship between a variation of the electrical resistance value of the sensor and the flying height of the magnetic head from the magnetic disk, which is obtained in each stage or which calculated from the approach distance in each stage. In the flying height detecting process, an electrical resistance value of the sensor is determined, and a variation of the electrical resistance value is calculated from the determined values. Then, the flying height of the magnetic head from the magnetic disk in the state where the electrical resistance value was determined is obtained based on the basic data obtained in the initial setting process, using the calculated variation of the electrical resistance value.

公开(公告)号：US20110211275A1

公开(公告)日：2011-09-01

申请号：US12659129

申请日：2010-02-26

申请人： Yosuke Antoku ,  Noboru Yamanaka ,  Masashi Sano ,  Kosuke Tanaka ,  Man Tse ,  Eric Cheuk Wing Leung ,  Luke Hung Leung Chung

发明人： Yosuke Antoku ,  Noboru Yamanaka ,  Masashi Sano ,  Kosuke Tanaka ,  Man Tse ,  Eric Cheuk Wing Leung ,  Luke Hung Leung Chung

IPC分类号： G11B21/02

CPC分类号： G11B5/6005 ,  G11B5/6064

摘要： For obtaining a flying height of a magnetic head from a magnetic disk, the magnetic head being placed in a slider arranged at an interval with the magnetic disk, an initial setting process and a flying height detecting process are performed. In the initial setting process, driving power to a heater is increased gradually, from a state where the heater arranged at a position in proximity to the magnetic head in the slider is not driven, until the magnetic head makes contact with the magnetic disk. Then, in each stage, an electrical resistance value of the sensor arranged at a position in proximity to the magnetic head in the slider, which is increased due to the heat from heater, and either an approach distance of the magnetic head toward the magnetic disk or the flying height of the magnetic head from the magnetic disk are acquired. Then, basic data is prepared by obtaining the relationship between a variation of the electrical resistance value of the sensor and the flying height of the magnetic head from the magnetic disk, which is obtained in each stage or which calculated from the approach distance in each stage. In the flying height detecting process, an electrical resistance value of the sensor is determined, and a variation of the electrical resistance value is calculated from the determined values. Then, the flying height of the magnetic head from the magnetic disk in the state where the electrical resistance value was determined is obtained based on the basic data obtained in the initial setting process, using the calculated variation of the electrical resistance value.

摘要翻译： 为了从磁盘获得磁头的飞行高度，磁头被放置在与磁盘间隔设置的滑块中，执行初始设定处理和飞行高度检测处理。 在初始设定处理中，从布置在滑动件附近的磁头的位置的加热器未被驱动的状态直到磁头与磁盘接触的状态逐渐增加到加热器的驱动电力。 然后，在各阶段，布置在靠近滑块的磁头的位置处的传感器的电阻值由于来自加热器的热而增加，并且磁头朝向磁盘的接近距离 或者从磁盘获取磁头的飞行高度。 然后，通过获得传感器的电阻值的变化与来自磁盘的磁头的飞行高度之间的关系来准备基本数据，该关系是在每个阶段中获得的，或者由每个阶段中的接近距离计算 。 在飞行高度检测处理中，确定传感器的电阻值，并根据确定的值计算电阻值的变化。 然后，使用计算出的电阻值的变化，基于在初始设定处理中获得的基本数据，求出在确定了电阻值的状态下磁头从磁盘的飞行高度。

公开(公告)号：US5958611A

公开(公告)日：1999-09-28

申请号：US873739

申请日：1997-06-12

申请人： Manabu Ohta ,  Kiyoshi Noguchi ,  Masashi Sano ,  Satoru Araki ,  Taro Oike

发明人： Manabu Ohta ,  Kiyoshi Noguchi ,  Masashi Sano ,  Satoru Araki ,  Taro Oike

IPC分类号： G11B5/31 ,  G11B5/39 ,  H01F10/08 ,  H01F10/32 ,  H01L43/08 ,  H01L43/10 ,  G11B5/66

CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/3903 ,  H01F10/3268 ,  H01L43/10 ,  G11B2005/3996 ,  G11B5/3163 ,  Y10S428/90 ,  Y10T428/1107 ,  Y10T428/1121 ,  Y10T428/24355

摘要： According to the present invention, a magnetic multilayered film includes an oxide antiferromagnetic layer, a pinned ferromagnetic layer which is pinned by the oxide antiferromagnetic layer, a non-magnetic metal layer and a free ferromagnetic layer which are stacked on a substrate in order. A surface roughness Ra of the oxide antiferromagnetic layer at the side of the pinned ferromagnetic layer is set to no greater than 0.6 nm, and a crystal grain size D of the oxide antiferromagnetic layer is set to a value in the range of 10 to 40 nm. Thus, the magnetic multilayered film has the large exchange-coupling magnetic field and MR ratio and MR sensitivity. The magnetic multilayered film may be applied to a magnetoresistance effect element which may also applied to a magnetoresistance device, such as, a magnetoresistance effect type head. The magnetoresistance effect element having such a magnetic multilayered film is capable of obtaining high outputs. The magnetoresistance effect type head having such a magnetoresistance effect element which is excellent in current efficiency and capable of detecting signals magnetically recorded in high density, particularly in ultrahigh density exceeding 3 Gbit/inch.sup.2 and further obtaining large outputs.

摘要翻译： 根据本发明，磁性多层膜包括氧化物反铁磁性层，由氧化物反铁磁层固定的钉扎铁磁性层，依次层叠在基板上的非磁性金属层和自由铁磁性层。 在被钉扎的铁磁层一侧的氧化物反铁磁性层的表面粗糙度Ra被设定为不大于0.6nm，并且氧化物反铁磁性层的晶粒尺寸D设定在10至40nm的范围内的值 。 因此，磁性多层膜具有大的交换耦合磁场和MR比和MR灵敏度。 可以将磁性多层膜施加到也可以施加到诸如磁阻效应型头的磁阻器件的磁阻效应元件。 具有这种磁性多层膜的磁阻效应元件能够获得高输出。 具有这样的磁阻效应元件的磁电阻效应型头具有优异的电流效率，能够检测高密度地磁记录的信号，特别是超过3Gbit / inch2的超高密度，并进一步获得大的输出。

公开(公告)号：US5862022A

公开(公告)日：1999-01-19

申请号：US933347

申请日：1997-09-19

申请人： Kiyoshi Noguchi ,  Taro Oike ,  Satoru Araki ,  Manabu Ohta ,  Masashi Sano

发明人： Kiyoshi Noguchi ,  Taro Oike ,  Satoru Araki ,  Manabu Ohta ,  Masashi Sano

IPC分类号： G11B5/39 ,  H01L43/08 ,  G11C11/00 ,  H01L41/12

CPC分类号： G11B5/3967 ,  H01L43/08

摘要： This invention is directed to a ferromagnetic tunnel junction, an MR element and a magnetic head. A ferromagnetic tunnel junction is constituted by sequentially laminating a first ferromagnetic film, an insulating film and a second ferromagnetic film. These are laminated on an appropriate insulating substrate. The present invention is characterized in that the barrier potential of the insulating film is set within a range of 0.5 to 3 eV. A ferromagnetic tunnel junction with which a high MR ratio can be achieved with good reproduction characteristics is provided.

摘要翻译： 本发明涉及铁磁隧道结，MR元件和磁头。 铁磁隧道结由顺序层叠第一铁磁膜，绝缘膜和第二铁磁膜构成。 这些层压在适当的绝缘基板上。 本发明的特征在于，绝缘膜的阻挡电位设定在0.5〜3eV的范围内。 提供了具有良好再生特性可实现高MR比的铁磁隧道结。

公开(公告)号：US08529777B2

公开(公告)日：2013-09-10

申请号：US13230261

申请日：2011-09-12

申请人： Hisayoshi Watanabe ,  Hideyuki Yatsu ,  Takayuki Nishizawa ,  Masashi Sano ,  Hiromichi Umehara ,  Takayasu Kanaya ,  Tetsuji Hori

发明人： Hisayoshi Watanabe ,  Hideyuki Yatsu ,  Takayuki Nishizawa ,  Masashi Sano ,  Hiromichi Umehara ,  Takayasu Kanaya ,  Tetsuji Hori

IPC分类号： B44C1/22 ,  C03C15/00 ,  C03C25/68 ,  C23F1/00

CPC分类号： G11B5/3163

摘要： The present invention relates to a method of making a mask for patterning a thin film. The method includes a step of forming an inorganic material, which is resolvable into alkali solution, on a substrate; a step of forming the inorganic material in a predetermined pattern; and a step of narrowing the inorganic material with the alkali solution to form the mask.

摘要翻译： 本发明涉及一种制造用于图案化薄膜的掩模的方法。 该方法包括在基板上形成可分解成碱溶液的无机材料的步骤; 以预定图案形成无机材料的步骤; 以及用碱溶液使无机材料变窄以形成掩模的步骤。

公开(公告)号：US07983001B2

公开(公告)日：2011-07-19

申请号：US11940772

申请日：2007-11-15

申请人： Makoto Sato ,  Atsushi Yamaguchi ,  Masashi Sano ,  Shingo Miyata ,  Kenzo Makino

发明人： Makoto Sato ,  Atsushi Yamaguchi ,  Masashi Sano ,  Shingo Miyata ,  Kenzo Makino

IPC分类号： G11B5/127

CPC分类号： G11B5/3116 ,  G11B5/1278 ,  G11B5/314 ,  G11B5/3163

摘要： The present invention relates to a perpendicular recording magnetic head. A main magnetic pole film includes an electrode film and a plated magnetic film. The electrode film includes a Ru film and a conductive magnetic film, and the Ru film, which follows the shape of an inner wall surface of a recess formed in a first non-magnetic film, is adhered to the inner wall surface of the recess or a surface of a second non-magnetic film adhered thereto. The conductive magnetic film is adhered to a surface of the Ru film, thereby following the shape of the inner wall surface of the recess. The plated magnetic film is disposed adjacent the conductive magnetic film, thereby filling up the recess.

摘要翻译： 本发明涉及一种垂直记录磁头。 主磁极膜包括电极膜和镀覆磁性膜。 该电极膜包括Ru膜和导电磁性膜和Ru膜，它遵循形成在第一非磁性膜的凹部的内壁面的形状，附着于凹部的或内壁表面 附着在其上的第二非磁性膜的表面。 导电性磁性膜粘合到Ru膜的表面，由此跟随凹部的内壁表面的形状。 电镀磁性膜与导电性磁性膜相邻配置，从而填充凹部。

公开(公告)号：US07508957B2

公开(公告)日：2009-03-24

申请号：US11169898

申请日：2005-06-30

申请人： Kiyotaka Awatsu ,  Takahiro Kudoh ,  Masashi Sano ,  Masanori Ohkoshi

发明人： Kiyotaka Awatsu ,  Takahiro Kudoh ,  Masashi Sano ,  Masanori Ohkoshi

IPC分类号： G06K9/00

CPC分类号： G06F21/34 ,  G06F21/32 ,  G07C9/00087

摘要： A biometrics authentication device uses biometrics information for individual authentication, and securely registers biometrics information for an authorized agent other than the principal. Biometrics information for the principal, registered in an IC card, is verified against biometrics information detected by a detection unit, and when biometrics authentication of the principal is satisfactory, biometrics information registration for an authorized agent is performed using the detection unit. Biometrics information for the authorized agent can be registered securely in the card in which is registered the biometrics information for the principal.

摘要翻译： 生物特征认证设备使用生物特征信息进行个体认证，并且为委托人以外的授权代理安全地注册生物识别信息。 根据检测单元检测到的生物特征信息，对登记在IC卡中的主体的生物特征信息进行验证，并且当主体的生物特征认证令人满意时，使用检测单元执行授权代理的生物特征信息登记。 授权代理人的生物识别信息可以安全地登记在注册了委托人的生物识别信息的卡中。