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    RANDOM NUMBER GENERATING DEVICE
    71.
    发明申请
    RANDOM NUMBER GENERATING DEVICE 有权
    随机数生成装置

    公开(公告)号：US20100131578A1

    公开(公告)日：2010-05-27

    申请号：US12452012

    申请日：2008-03-24

    申请人： Akio Fukushima ,  Hitoshi Kubota ,  Kay Yakushiji ,  Shinji Yuasa ,  Koji Ando

    发明人： Akio Fukushima ,  Hitoshi Kubota ,  Kay Yakushiji ,  Shinji Yuasa ,  Koji Ando

    IPC分类号： G06F7/58

    CPC分类号： G06F7/588

    摘要： A random number generating device is constructed such that it has improved random number generation rate and allows for construction of compact circuit with ease.The random number generating device includes a magnetoresistive element that has three layers consisting of a magnetization free layer, an interlayer, and a magnetization fixed layer, and has at least two resistance values depending on arrangement of magnetization in the magnetization free layer and the magnetization fixed layer, wherein the magnetoresistive element is subjected to be applied with a magnetization current so that the inversion probability of the magnetization free layer assumes a value between 0 and 1, through which the resistance value of the magnetoresistive element is extracted as random numbers.

    摘要翻译： 构造随机数生成装置，使其具有改善的随机数生成速率并且容易地构造紧凑电路。 该随机数生成装置包括具有由磁化自由层，中间层和磁化固定层构成的三层的磁致电阻元件，并且具有取决于磁化自由层的磁化排列和磁化固定的至少两个电阻值 层，其中磁阻元件经受施加磁化电流，使得磁化自由层的反转概率为0和1之间的值，磁阻元件的电阻值通过该值提取为随机数。

    OPTICAL DISC APPARATUS THEREFOR
    72.
    发明申请
    OPTICAL DISC APPARATUS THEREFOR 有权
    其光盘设备

    公开(公告)号：US20090303847A1

    公开(公告)日：2009-12-10

    申请号：US12473752

    申请日：2009-05-28

    申请人： Yoshinori Ishikawa ,  Takeshi Shimano ,  Akio Fukushima

    发明人： Yoshinori Ishikawa ,  Takeshi Shimano ,  Akio Fukushima

    IPC分类号： G11B7/00

    CPC分类号： G11B7/13925 ,  G11B7/08511 ,  G11B7/0945 ,  G11B7/24038 ,  G11B2007/0013

    摘要： There is a need to accurately lock focus of a laser beam onto a target data layer of a multilayer optical disc. The above need can be addressed by, for example, performing a focus lock operation after a spherical aberration correction amount is set in such a way as to make smaller the ratio of the focus error signal waveform amplitude at the data layer adjacent to a target data layer through which a laser beam passes earlier than through the target data layer to the focus error signal waveform amplitude at the target data layer than that when the spherical aberration correction amount is set so as to be optimal for the target data layer.

    摘要翻译： 需要将激光束的焦点准确地锁定到多层光盘的目标数据层上。 可以通过例如在设置球面像差校正量之后进行聚焦锁定操作来解决上述需要，以便使得与目标数据相邻的数据层处的聚焦误差信号波形幅度的比例变小 激光束比通过目标数据层更早地传递到目标数据层的聚焦误差信号波形振幅的层，而不是对于目标数据层设置为最佳的球面像差校正量。

    Electronic device and wiring with a current induced cooling effect, and an electronic device capable of converting a temperature difference into voltage
    74.
    发明授权
    Electronic device and wiring with a current induced cooling effect, and an electronic device capable of converting a temperature difference into voltage 失效
    具有电流感应冷却效果的电子设备和布线以及能够将温差转换为电压的电子设备

    公开(公告)号：US07556869B2

    公开(公告)日：2009-07-07

    申请号：US11221863

    申请日：2005-09-09

    申请人： Akio Fukushima ,  Hitoshi Kubota ,  Atsushi Yamamoto

    发明人： Akio Fukushima ,  Hitoshi Kubota ,  Atsushi Yamamoto

    IPC分类号： G11B5/39 ,  G11C5/06 ,  G11C5/14

    CPC分类号： G11C11/16 ,  G11B5/3903 ,  G11B5/40 ,  H01L23/38 ,  H01L43/08 ,  H01L2924/0002 ,  Y10T428/1193 ,  H01L2924/00

    摘要： Localized temperature increases inside integrated circuits due to heating at operation are prevented or controlled by electronic devices or wirings with CPP (current-perpendicular-to-plane) structures which have a current cooling effect. A CPP structure refers to a structure comprising a columnar electrically conductive portion and an insulator portion surrounding the conductive portion. The columnar portion is formed from a multilayered structure in a direction perpendicular to the plane of the layers, so as to allow a current to flow from an upper layer to a lower layer (or vice versa). The cooling effect is induced by current at the interface (or a plural of interfaces) of appropriately selected different kinds of materials (which are conductive substances in general, such as metals, semiconductors, and alloys thereof) in the columnar portion due to the Peltier effect when a current flows through the column. Temperature in a minute range is detected by a thermocouple with the CPP structure. The thermocouple has two interfaces of different materials with a proper combination. When a temperature difference exists between the two interfaces, a voltage which corresponds to a product of the temperature difference and the Peltier coefficient at the interface is produced. In the same manner, the intensity of the infrared can be also measured.

    摘要翻译： 通过具有当前冷却效果的CPP（电流 - 垂直 - 平面）结构的电子设备或配线来防止或控制由于操作中的加热而导致集成电路内的局部温度升高。 CPP结构是指包括柱状导电部分和围绕导电部分的绝缘体部分的结构。 柱状部分由与层的平面垂直的方向由多层结构形成，从而允许电流从上层流向下层（反之亦然）。 由于珀尔帖（Peltier），在柱状部分中适当选择的不同种类的材料（通常为导电物质，例如金属，半导体及其合金）的界面（或多个界面）处的电流引起了冷却效应。 当电流流过色谱柱时产生影响。 通过具有CPP结构的热电偶检测微小范围内的温度。 热电偶具有不同材料的两个接口，并具有适当的组合。 当在两个界面之间存在温度差时，产生对应于界面处的温差和珀尔帖系数的乘积的电压。 以相同的方式，还可以测量红外线的强度。

    Optical Information Recording and Reproducing Apparatus
    75.
    发明申请
    Optical Information Recording and Reproducing Apparatus 审中-公开
    光信息记录和再现设备

    公开(公告)号：US20090086607A1

    公开(公告)日：2009-04-02

    申请号：US12238475

    申请日：2008-09-26

    申请人： Akio Fukushima

    发明人： Akio Fukushima

    IPC分类号： G11B7/00

    CPC分类号： G11B7/0065 ,  G11B2007/0006

    摘要： The invention provides an optical information recording and reproducing apparatus which can record and/or reproduce an information on both a holographic storage disc and a conventional optical storage disc, can improve a usability, and can achieve a downsizing and a low cost. The optical information recording and reproducing apparatus can record and reproduce an information on both a holographic storage disc and an optical storage disc recording and/or reproducing the information at a time of a high speed turning, by an optical pickup, and is provided with a stepping motor driving the holographic storage disc, and a direct-current motor driving the optical storage disc, and a rotating shaft of the stepping motor and a rotating shaft of the direct-current motor are constituted by a common rotating shaft.

    摘要翻译： 本发明提供了一种能够在全息存储盘和常规光存储盘上记录和/或再现信息的光学信息记录和再现装置，可以提高可用性，并且可以实现小型化和低成本。 光信息记录和再现装置可以通过光学拾取器记录和再现在高速转动时记录和/或再现信息的全息存储盘和光存储盘上的信息，并且设置有 驱动全息存储盘的步进电机和驱动光存储盘的直流电动机，步进电动机的旋转轴和直流电动机的旋转轴由共同的转轴构成。

    Microwave Transmission Line Integrated Microwave Generating Element and Microwave Transmission Line Integrated Microwave Detecting Element
    76.
    发明申请
    Microwave Transmission Line Integrated Microwave Generating Element and Microwave Transmission Line Integrated Microwave Detecting Element 有权
    微波传输线集成微波发生元件和微波传输线集成微波检测元件

    公开(公告)号：US20080150643A1

    公开(公告)日：2008-06-26

    申请号：US11886083

    申请日：2006-03-17

    申请人： Yoshishige Suzuki ,  Shinji Yuasa ,  Akio Fukushima ,  Ashwin Tulapurkar

    发明人： Yoshishige Suzuki ,  Shinji Yuasa ,  Akio Fukushima ,  Ashwin Tulapurkar

    IPC分类号： H03B15/00 ,  H01L43/08 ,  H01Q23/00

    CPC分类号： H01L43/08 ,  H01P11/003 ,  H01Q23/00 ,  H03B15/006

    摘要： Microwave generating and detection portions of a electronic circuit is improved in efficiency and reduced in size. A microwave generating element A comprises a lower electrode 1, a layer 3 formed on the lower electrode 1 in an island shape, forming a magnetoresistance element, an insulator 7 formed on the lower electrode 1 in such a manner as to surround the layer 3 forming the magnetoresistance element, and an upper electrode 5 formed on the insulator 7 and the layer 3 forming the magnetoresistance element. The layer 3 forming the magnetoresistance element includes, in order from the side of the lower electrode 1, a magnetization fixed layer 3a, an intermediate layer 3b, and a magnetization free layer 3c. The magnetization free layer 3c, which is required to produce resonance oscillation based on a current, preferably is dimensioned to be equal to or smaller than 200 nm square in a cross-sectional area and on the order of 1 to 5 nm in film thickness, for example. The magnetization fixed layer 3a, when made of a single material, is required to have a thickness 10 times or more of the thickness of the magnetization free layer 3c. The magnetization fixed layer 3a may be comprised of a magnetic metal multilayer film that utilizes antiferromagnetic coupling.

    摘要翻译： 电子电路的微波产生和检测部分的效率提高并且尺寸减小。 微波发生元件A包括下电极1，形成在岛状的下电极1上的层3，形成磁阻元件，形成在下电极1上的绝缘体7，以包围形成层3的方式 磁阻元件和形成在绝缘体7上的上电极5和形成磁阻元件的层3。 形成磁阻元件的层3从下电极1的侧面依次包括磁化固定层3a，中间层3b和无磁化层3c。 优选地，基于电流产生共振振荡所需的无磁化层3c的截面积优选为等于或小于200nm正方形，膜厚为1〜5nm量级 ， 例如。 当由单一材料制成时，磁化固定层3a必须具有磁化自由层3c的厚度的10倍或更多的厚度。 磁化固定层3a可以由利用反铁磁耦合的磁性金属多层膜构成。

    CPP TYPE GIANT MAGNETO-RESISTANCE ELEMENT AND MAGNETIC SENSOR
    77.
    发明申请
    CPP TYPE GIANT MAGNETO-RESISTANCE ELEMENT AND MAGNETIC SENSOR 审中-公开
    CPP型巨磁电阻元件和磁传感器

    公开(公告)号：US20080026253A1

    公开(公告)日：2008-01-31

    申请号：US11688570

    申请日：2007-03-20

    申请人： Shinji Yuasa ,  Akio Fukushima

    发明人： Shinji Yuasa ,  Akio Fukushima

    IPC分类号： G11B5/39

    CPC分类号： G11B5/398 ,  B82Y25/00 ,  B82Y40/00 ,  G01R33/093 ,  G11B5/3906 ,  G11B5/3983 ,  H01F10/3259 ,  H01F41/307 ,  H01F41/325 ,  H01L43/08 ,  H01L43/12 ,  Y10T428/1107

    摘要： Provided are a CCP (current confined path)-CPP (current-perpendicular-to-plane) type giant magneto-resistance (GMR) element having a giant magneto-resistance ratio in a low resistance region (a region of not more than 1 ohm per square micrometer) and a magnetic sensor using this GMR element. The CCP-CPP type GMR element A has a laminated structure of an anti-ferromagnetic layer, a magnetization pinned layer, an intermediate layer and a magnetization free layer, and is formed to have a construction in which a current flows perpendicularly to a film plane. By using an ultrathin magnesium oxide layer having micropores that is preferentially oriented in the (001) direction as the intermediate layer, the magneto-resistance ratio is enhanced, because a current flowing from the magnetization free layer to the magnetization pinned layer (or in the opposite direction) is confined by the metal in the micropores.

    摘要翻译： 提供了在低电阻区域（不大于1欧姆的区域）具有巨磁阻比的CCP（电流限制路径）-CPP（电流垂直平面）型巨磁电阻（GMR）元件 每平方微米）和使用该GMR元件的磁传感器。 CCP-CPP型GMR元件A具有反铁磁层，磁化钉扎层，中间层和无磁化层的叠层结构，并且形成为具有电流垂直于膜平面流动的结构 。 通过使用具有以（001）方向优先取向的微孔作为中间层的超薄氧化镁层，由于从磁化自由层流向磁化固定层（或者在 相反方向）被微孔中的金属限制。

    Optical disc recording device
    80.
    发明申请
    Optical disc recording device 失效
    光盘记录装置

    公开(公告)号：US20060262681A1

    公开(公告)日：2006-11-23

    申请号：US11295360

    申请日：2005-12-05

    申请人： Akio Fukushima

    发明人： Akio Fukushima

    IPC分类号： G11B19/02

    CPC分类号： G11B19/12 ,  G11B7/00375 ,  G11B7/0045 ,  G11B7/0945 ,  G11B7/0948 ,  G11B7/095

    摘要： A technique for investigating differences of composition and structural state of a recording layer of an optical disc along with other defects, such as scratches, contamination, warp and distortion, prior to video recording and for setting up appropriate recording conditions in compliance with this result to thereby perform recording is disclosed. In an optical disc recording device capable of recording information on an optical disc, a region to be investigated is defined based on the video recording reservation contents. Then, investigate and evaluate the disc state which can affect the recording quality in a target disc region to be recorded. Next, based on investigation/evaluation results, perform recording setup, recording speed setup, servo control setup and recording position setup to thereby perform the recording. By appropriately modifying the recording setup on a case-by-case basis, it is possible to achieve high-quality recording.

    摘要翻译： 一种用于调查光盘记录层的组成和结构状态的差异以及在视频记录之前的其它缺陷（例如划痕，污染，翘曲和变形）以及根据该结果建立适当的记录条件的技术 从而进行记录。 在能够在光盘上记录信息的光盘记录装置中，基于视频记录预约内容来定义被调查的区域。 然后，调查并评估影响要记录的目标光盘区域的记录质量的光盘状态。 接下来，根据调查/评价结果，进行记录设定，记录速度设定，伺服控制设定和记录位置设定，从而进行记录。 通过根据具体情况适当地修改记录设置，可以实现高质量的记录。