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    Magnetic memory device
    52.
    发明授权
    Magnetic memory device 有权
    磁存储器件

    公开(公告)号：US06473336B2

    公开(公告)日：2002-10-29

    申请号：US09735629

    申请日：2000-12-14

    申请人： Kentaro Nakajima ,  Koichiro Inomata ,  Yoshiaki Saito ,  Masayuki Sagoi

    发明人： Kentaro Nakajima ,  Koichiro Inomata ,  Yoshiaki Saito ,  Masayuki Sagoi

    IPC分类号： G11C1714

    CPC分类号： H01L27/228 ,  G11C11/16 ,  H01L27/224

    摘要： A magnetic memory device comprises a memory cell assembled by first and second tunnel junction portions and a switch, each of the first and second tunnel junction portions being formed of a stack of a pinned layer in which a magnetization direction is fixed and a record layer in which a magnetization direction changes depending on an external magnetic field. A first data line is connected to a first end of the first tunnel junction portion. A second data line is connected to the first end of the second tunnel junction portion. A bit line is connected to the second end of the first tunnel junction portion and the second end of the second tunnel junction portion via the switch.

    摘要翻译： 磁存储器件包括由第一和第二隧道结部分和开关组装的存储器单元，第一和第二隧道结部分中的每一个由固定层的堆叠形成，其中磁化方向固定在其中，并且记录层 其磁化方向根据外部磁场而变化。 第一数据线连接到第一隧道结部分的第一端。 第二数据线连接到第二隧道结部分的第一端。 位线经由开关连接到第一隧道结部分的第二端和第二隧道结部分的第二端。

    Permanent magnet
    54.
    发明授权
    Permanent magnet 失效
    永久磁铁

    公开(公告)号：US4935075A

    公开(公告)日：1990-06-19

    申请号：US311389

    申请日：1989-02-16

    申请人： Tetsuhiko Mizoguchi ,  Isao Sakai ,  Hiromi Niu ,  Koichiro Inomata ,  Akihiko Tsutai

    发明人： Tetsuhiko Mizoguchi ,  Isao Sakai ,  Hiromi Niu ,  Koichiro Inomata ,  Akihiko Tsutai

    IPC分类号： H01F1/057

    CPC分类号： H01F1/0577 ,  H01F1/057 ,  H01F1/0578

    摘要： A permanent magnet essentially consists of 10 to 40% by weight of R, 0.1 to 8% by weight of boron, 13% by weight or less of gallium and iron, where R is at least one component selected from the group consisting of yttrium and the rare-earth elements.The magnet having this composition has a high coercive force iHC and a high residual magnetic flux density and therefore has a high maximum energy product.

    摘要翻译： 永磁体基本上由10〜40重量％的R，0.1〜8重量％的硼，13重量％以下的镓和铁组成，其中R为选自钇和 稀土元素。 具有这种组成的磁体具有高的矫顽力iHC和高剩余磁通密度，因此具有高的最大能量积。

    Permanent magnet
    55.
    发明授权
    Permanent magnet 失效
    永久磁铁

    公开(公告)号：US4859254A

    公开(公告)日：1989-08-22

    申请号：US905397

    申请日：1986-09-10

    申请人： Tetsuhiko Mizoguchi ,  Isao Sakai ,  Hiromi Niu ,  Koichiro Inomata

    发明人： Tetsuhiko Mizoguchi ,  Isao Sakai ,  Hiromi Niu ,  Koichiro Inomata

    IPC分类号： H01F1/08 ,  H01F1/057

    CPC分类号： H01F1/0577

    摘要： A permanent magnet according to the present invention is characterized in that it is composed of an alloy comprising mainly of iron, and R (rare earth element including yttrium), cobalt, and boron, wherein the alloy is formed principally of ferromagnetic Fe-rich phase of tetragonal system and includes a nonmagnetic Laves phase. Compared with the prior rare earth-Fe based magnet, it has higher Curie temperature and has excellent magnetic characteristics, especially the temperature characteristics.

    摘要翻译： 根据本发明的永磁体的特征在于，它由主要由铁组成的合金和R（包括钇）的稀土元素，钴和硼组成，其中合金主要由铁磁富Fe相形成 的四方系统，包括非磁性Laves相。 与现有的稀土 - 铁基磁体相比，具有较高的居里温度，具有优异的磁特性，特别是温度特性。

    Torque sensor for detecting a shaft torque and an electric machine in which the torque sensor is mounted
    56.
    发明授权
    Torque sensor for detecting a shaft torque and an electric machine in which the torque sensor is mounted 失效
    用于检测轴扭矩的扭矩传感器和安装扭矩传感器的电机

    公开(公告)号：US4750371A

    公开(公告)日：1988-06-14

    申请号：US913317

    申请日：1986-09-30

    申请人： Tadahiko Kobayashi ,  Masashi Sahashi ,  Koichiro Inomata ,  Tomokazu Domon

    发明人： Tadahiko Kobayashi ,  Masashi Sahashi ,  Koichiro Inomata ,  Tomokazu Domon

    IPC分类号： G01L3/10

    CPC分类号： G01L3/102 ,  G01L3/105

    摘要： A torque sensor of noncontact type, by which can be stably measured the torque of a shaft with a sufficient S/N ratio under the influence of external magnetic noise, such as an induction magnetic flux which is produced in an induction motor, and which can be readily disposed in a comparatively small space. When provided on an induction motor, the torque sensor is mounted on the induction motor in noncontacting relationship. The torque sensor detects the torque of the shaft and includes a pair of magnetic material members provided on respective circumferential portions of the peripheral surface of a shaft. A pair of magnetic detectors are disposed at opposite locations at which external magnetic fields having opposite phase exist. The detectors detect the variation of the magnetic characteristics of the magnetic materials, and a signal processing circuit produces a mean value of output signals obtained from the magnetic detectors.

    摘要翻译： 一种非接触式的转矩传感器，其可以在外部磁噪声（例如感应电动机中产生的感应磁通）的影响下稳定地测量具有足够的S / N比的轴的转矩，并且可以 容易地设置在相对较小的空间中。 当设置在感应电动机上时，转矩传感器以非接触关系安装在感应电动机上。 转矩传感器检测轴的转矩，并且包括设置在轴的周面的相应周向部分上的一对磁性材料构件。 一对磁性检测器设置在具有相反相位的外部磁场的相对位置处。 检测器检测磁性材料的磁特性的变化，并且信号处理电路产生从磁性检测器获得的输出信号的平均值。

    Permanent magnetic alloy and method of manufacturing the same
    57.
    发明授权
    Permanent magnetic alloy and method of manufacturing the same 失效
    永磁合金及其制造方法

    公开(公告)号：US4664724A

    公开(公告)日：1987-05-12

    申请号：US773547

    申请日：1985-09-09

    申请人： Tetsuhiko Mizoguchi ,  Koichiro Inomata ,  Toru Higuchi ,  Isao Sakai

    发明人： Tetsuhiko Mizoguchi ,  Koichiro Inomata ,  Toru Higuchi ,  Isao Sakai

    IPC分类号： H01F1/04 ,  H01F1/057

    CPC分类号： H01F1/057 ,  H01F1/0577

    摘要： A permanent magnetic alloy essentially consists of 10 to 40% by weight of R, 0.1 to 8% by weight of boron, 50 to 300 ppm by weight of oxygen and the balance of iron, where R is at least one component selected from the group consisting of yttrium and the rare-earth elements.An alloy having this composition has a high coercive force .sub.I H.sub.C and a high residual magnetic flux density and therefore has a high maximum energy product.

    摘要翻译： 永磁合金基本上由10〜40重量％的R，0.1〜8重量％的硼，50〜300重量ppm的氧和余量的铁组成，其中R为至少一种选自 由钇和稀土元素组成。 具有这种组成的合金具有高矫顽力IHC和高剩余磁通密度，因此具有高的最大能量积。

    Permanent magnet
    58.
    发明授权
    Permanent magnet 失效
    永久磁铁

    公开(公告)号：US4578125A

    公开(公告)日：1986-03-25

    申请号：US392593

    申请日：1982-06-28

    申请人： Masashi Sahashi ,  Koichiro Inomata ,  Naoyuki Sori ,  Hideki Yamamiya

    发明人： Masashi Sahashi ,  Koichiro Inomata ,  Naoyuki Sori ,  Hideki Yamamiya

    IPC分类号： C22C19/07 ,  H01F1/055 ,  C04B35/00

    CPC分类号： C22C19/07 ,  H01F1/0557

    摘要： Disclosed is a comprising a powdered alloy composed of 23 to about 29% by weight of samarium, 0.2 to about 7% by weight of titanium, 3 to about 9% by weight of copper, 10 to about 25% by weight of iron, and the balance of cobalt principally; said powdered alloy being sintered to obtain a sintered body, followed by(a) annealing the sintered body at a cooling rate of not more than 5.degree. C./min from an annealing-initiating temperature of from 600.degree. to 900.degree. C., or(b) subjecting the sintered body to a multi-stepwise aging processing initiated from a higher temperature to a lower temperature within the temperature range of from 350.degree. to 900.degree. C.The magnet is excellent in all the magnetic properties such as residual magnetic flux density, coercive force and maximum energy product, and also excellent in antioxidation property.

    摘要翻译： 公开了一种粉末状合金，其包含23至29重量％的钐，0.2至约7重量％的钛，3至约9重量％的铜，10至约25重量％的铁以及 钴的余量主要为 所述粉末状合金被烧结以获得烧结体，然后（a）从600℃至900℃的退火起始温度以不超过5℃/分钟的冷却速率对烧结体进行退火， 或（b）使烧结体在350〜900℃的温度范围内从较高的温度开始进行多步骤老化处理。该磁体具有优异的磁性能，例如残余磁性 磁通密度，矫顽力和最大能量乘积，抗氧化性也优异。