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12 条记录 (耗时 0.037 秒)

    Magnetic balance type current sensor
    1.
    发明授权
    Magnetic balance type current sensor 有权
    磁平衡式电流传感器

    公开(公告)号：US08269492B2

    公开(公告)日：2012-09-18

    申请号：US12891550

    申请日：2010-09-27

    申请人： Masamichi Saito ,  Akira Takahashi ,  Masahiro Iizuka ,  Tatsuya Kogure ,  Yosuke Ide ,  Yoshihiro Nishiyama ,  Kenji Ichinohe ,  Naoki Sakatsume ,  Tsuyoshi Nojima ,  Shigenobu Miyajima ,  Hidekazu Kobayashi

    发明人： Masamichi Saito ,  Akira Takahashi ,  Masahiro Iizuka ,  Tatsuya Kogure ,  Yosuke Ide ,  Yoshihiro Nishiyama ,  Kenji Ichinohe ,  Naoki Sakatsume ,  Tsuyoshi Nojima ,  Shigenobu Miyajima ,  Hidekazu Kobayashi

    IPC分类号： G01R33/09

    CPC分类号： G01R15/205 ,  H01L43/08

    摘要： A magnetic balance type current sensor measures a measured current which flows in a feedback coil when electrical conduction is provided by a voltage difference according to an induction magnetic field from the measured current and an equilibrium state is reached in which the induction magnetic field and a cancel magnetic field cancel each other. Sensor elements in a pair are arranged at positions with magnetic field from the measured current. The magnetization direction of the pinned magnetic layer in the magnetoresistive effect element of one sensor element is aligned in a forward direction with respect to the magnetic field formed by the measured current. The magnetization direction of the pinned magnetic layer in the magnetoresistive effect element of the other sensor element is aligned in a reverse direction with respect to the magnetic field formed by the measured current.

    摘要翻译： 磁平衡型电流传感器测量在通过根据来自测量电流的感应磁场的电压差提供电传导时在反馈线圈中流动的测量电流，并且达到平衡状态，其中感应磁场和取消 磁场相互抵消。 一对传感器元件被布置在具有来自测量电流的磁场的位置处。 一个传感器元件的磁阻效应元件中的钉扎磁性层的磁化方向相对于由测量电流形成的磁场在正向方向上排列。 另一传感器元件的磁阻效应元件中的钉扎磁性层的磁化方向相对于由测量电流形成的磁场的反方向排列。

    Magnetic-balance-system current sensor
    2.
    发明授权
    Magnetic-balance-system current sensor 有权
    磁平衡系统电流传感器

    公开(公告)号：US08519704B2

    公开(公告)日：2013-08-27

    申请号：US13300076

    申请日：2011-11-18

    申请人： Yosuke Ide ,  Masamichi Saito ,  Akira Takahashi ,  Tsuyoshi Nojima ,  Shigenobu Miyajima ,  Naoki Sakatsume ,  Kenji Ichinohe ,  Yoshihiro Nishiyama ,  Tatsuya Kogure ,  Hidekazu Kobayashi ,  Masahiro Iizuka

    发明人： Yosuke Ide ,  Masamichi Saito ,  Akira Takahashi ,  Tsuyoshi Nojima ,  Shigenobu Miyajima ,  Naoki Sakatsume ,  Kenji Ichinohe ,  Yoshihiro Nishiyama ,  Tatsuya Kogure ,  Hidekazu Kobayashi ,  Masahiro Iizuka

    IPC分类号： G01R33/09

    CPC分类号： G01R15/205 ,  B82Y25/00 ,  G01R33/093

    摘要： A magnetic-balance-system current sensor includes: a magnetoresistive element, a resistance value of the magnetoresistive element being changed by applying an induction magnetic field generated by a measurement target current; magnetic cores disposed near the magnetoresistive element; a feedback coil disposed near the magnetoresistive element and configured to generate a cancelling magnetic field that cancels out the induction magnetic field; and a magnetic-field detecting bridge circuit having two outputs. The measurement target current is measured on the basis of a current flowing through the feedback coil when the induction magnetic field and the induction magnetic field and the cancelling magnetic field cancel each other out. The feedback coil, the magnetic cores, and the magnetic-field detecting bridge circuit are formed on a same substrate. The feedback coil is of a spiral type, and the magnetic cores are provided above and below the feedback coil.

    摘要翻译： 磁平衡系统电流传感器包括：磁阻元件，通过施加由测量目标电流产生的感应磁场来改变磁阻元件的电阻值; 设置在磁阻元件附近的磁芯; 设置在磁阻元件附近并被配置为产生抵消感应磁场的消除磁场的反馈线圈; 以及具有两个输出的磁场检测桥接电路。 当感应磁场和感应磁场和消除磁场相互抵消时，基于流过反馈线圈的电流来测量测量目标电流。 反馈线圈，磁芯和磁场检测桥式电路形成在同一基板上。 反馈线圈是螺旋型的，并且磁芯设置在反馈线圈的上方和下方。

    Current sensor including magnetic detecting element
    4.
    发明授权
    Current sensor including magnetic detecting element 有权
    电流传感器包括磁检测元件

    公开(公告)号：US08395383B2

    公开(公告)日：2013-03-12

    申请号：US13037231

    申请日：2011-02-28

    申请人： Yoshihiro Nishiyama ,  Masamichi Saito ,  Akira Takahashi ,  Yosuke Ide ,  Hidekazu Kobayashi ,  Masahiro Iizuka

    发明人： Yoshihiro Nishiyama ,  Masamichi Saito ,  Akira Takahashi ,  Yosuke Ide ,  Hidekazu Kobayashi ,  Masahiro Iizuka

    IPC分类号： G01R33/09

    CPC分类号： G01R15/205

    摘要： A current sensor includes a magnetic detecting element, a bridge circuit including a plurality of resistance elements, and a feedback coil placed adjacent to the magnetic detecting element and generating a cancelling magnetic field for cancelling the induced magnetic field based on the output from the bridge circuit. The wiring patterns forming the bridge circuit are routed so as not to intersect with each other when seen in a plan view. Only the resistance elements constituting each series circuit of the bridge circuit are connected to each other by the wiring pattern in an enclosed area which encloses each resistance element constituting the bridge circuit, and the wiring pattern branched from the wiring pattern is connected to the terminal which is installed in a quantity of only one, outside the enclosed area.

    摘要翻译： 电流传感器包括磁检测元件，包括多个电阻元件的桥接电路和与磁检测元件相邻放置的反馈线圈，并且基于桥式电路的输出产生抵消感应磁场的消除磁场 。 形成桥接电路的布线图案在平面图中看来彼此不相交。 构成桥式电路的各个串联电路的电阻元件只有封闭在构成桥接电路的各个电阻元件的封闭区域中的布线图案相互连接，从布线图案分支的布线图案与 在封闭区域外部仅安装一个。

    Magnetic coupling-type isolator
    5.
    发明授权
    Magnetic coupling-type isolator 有权
    磁耦合型隔离器

    公开(公告)号：US08270127B2

    公开(公告)日：2012-09-18

    申请号：US13044493

    申请日：2011-03-09

    申请人： Yosuke Ide ,  Masamichi Saito ,  Akira Takahashi ,  Masahiro Iizuka ,  Yoshihiro Nishiyama ,  Hidekazu Kobayashi

    发明人： Yosuke Ide ,  Masamichi Saito ,  Akira Takahashi ,  Masahiro Iizuka ,  Yoshihiro Nishiyama ,  Hidekazu Kobayashi

    IPC分类号： G11B5/39

    CPC分类号： H04B5/00 ,  B82Y25/00 ,  G01R33/093 ,  G01R33/098 ,  H01L27/22 ,  H01L43/08

    摘要： Magnetoresistive effect elements R1 to R4 are a TMR element or CPP-GMR element. A multilayer film forming the magnetoresistive effect elements is formed to have a width dimension T1 and a length dimension L1 perpendicular to the width dimension T1. The length dimension L1 is longer than the width dimension T1. The width dimension of magnetic field generators of the coil is T2. The multilayer film 31 is positioned within the width dimension T3 of 60% in total of 30% each to the width dimension T2 of the magnetic field generators 3 and 4 of the coil in the direction towards both sides from the center of the width dimension T2 when seen in a plan view.

    摘要翻译： 磁阻效应元件R1至R4是TMR元件或CPP-GMR元件。 形成磁阻效应元件的多层膜被形成为具有垂直于宽度尺寸T1的宽度尺寸T1和长度尺寸L1。 长度尺寸L1比宽度尺寸T1长。 线圈的磁场发生器的宽度尺寸为T2。 多层膜31在从宽度尺寸T2的中心朝向两侧的方向上相对于线圈的磁场发生器3和4的宽度尺寸T2总共为30％的宽度尺寸T3的60％的宽度尺寸T3 当在平面图中看到。

    Magnetic head
    8.
    发明授权
    Magnetic head 失效
    磁头

    公开(公告)号：US5856899A

    公开(公告)日：1999-01-05

    申请号：US955907

    申请日：1997-10-23

    申请人： Kinya Aoyagi ,  Tokuo Nakamura ,  Hiroshi Yamagami ,  Seiichi Abiko ,  Masahiro Iizuka ,  Satoshi Maki

    发明人： Kinya Aoyagi ,  Tokuo Nakamura ,  Hiroshi Yamagami ,  Seiichi Abiko ,  Masahiro Iizuka ,  Satoshi Maki

    IPC分类号： G11B5/10 ,  G11B5/105 ,  G11B5/133 ,  G11B5/193 ,  G11B5/23 ,  H01F1/34 ,  G11B5/235

    CPC分类号： G11B5/193 ,  G11B5/1335 ,  G11B5/102 ,  G11B5/105 ,  G11B5/23 ,  G11B5/232

    摘要： The magnetocrystalline anisotropic energy Kl is set to not more than 100 J/m.sup.3 and the absolute value of the magnetostriction in the direction, as the magnetic circuit direction, is reduced by appropriately selecting the ferrite material composition. Since the magnetocrystalline anisotropic energy Kl is small, the magnetoelastic energy largely affects the anisotropy of the crystallographic axis. The magnetoelastic energy is made negative and small in magnitude by adjusting the average coefficients of thermal expansion of the ferrite material and glass so as to apply a tensile stress around the magnetic gap of the magnetic head. The direction, i.e., magnetic circuit direction, is thereby allowed to coincide with a hard axis of magnetization. As a result, the permeability of the magnetic head is improved at high-frequency bands.

    摘要翻译： 将磁晶各向异性能K1设定为不超过100J / m 3，并且通过适当选择铁素体材料组成，减小作为磁路方向的<100>方向的磁致伸缩的绝对值。 由于磁晶各向异性能K1小，所以磁弹性能很大程度上影响结晶轴的各向异性。 通过调整铁氧体材料和玻璃的平均热膨胀系数，使磁致伸缩能量呈负值且小的程度，从而在磁头的磁隙周围施加拉伸应力。 因此，允许<100>方向，即磁路方向与硬磁化轴一致。 结果，磁头的磁导率在高频带被改善。

    Magnetic head having a thin film element
    9.
    发明授权
    Magnetic head having a thin film element 有权
    具有薄膜元件的磁头

    公开(公告)号：US06271994B1

    公开(公告)日：2001-08-07

    申请号：US09159326

    申请日：1998-09-23

    申请人： Hidetoshi Saito ,  Tomoo Otsuka ,  Masahiro Iizuka

    发明人： Hidetoshi Saito ,  Tomoo Otsuka ,  Masahiro Iizuka

    IPC分类号： G11B2121

    CPC分类号： G11B21/21 ,  G11B5/4826 ,  G11B5/60 ,  Y10T29/49052

    摘要： An improved magnetic head comprises a slider and a thin film element, the later of which is provided on a trailing side of the slider. The slider has core layers. The surfaces of the core layers are abraded so that the thickness of an a phase constituting the surface structures of the core layers may be reduced to a very small value. In this way, even if a carbon film is directly formed on the core layers, it is still possible to ensure a desired diffusion between the carbon film and the a phase, thereby effectively preventing the carbon film from separation (peeling) and avoiding the formation of any spot on the carbon film.

    摘要翻译： 改进的磁头包括滑块和薄膜元件，其后面设置在滑块的后侧。 滑块具有核心层。 芯层的表面被磨损，使得构成芯层的表面结构的a相的厚度可以减小到非常小的值。 这样，即使在芯层上直接形成碳膜，也可以确保碳膜与a相之间的期望的扩散，从而有效地防止碳膜分离（剥离）并避免形成 在碳膜上的任何点。