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29 条记录 (耗时 0.032 秒)

    Composite material for heat sinks for semiconductor devices and method for producing the same
    4.
    发明授权
    Composite material for heat sinks for semiconductor devices and method for producing the same 失效
    用于半导体器件的散热器的复合材料及其制造方法

    公开(公告)号：US06479095B1

    公开(公告)日：2002-11-12

    申请号：US09614899

    申请日：2000-07-12

    申请人： Shuhei Ishikawa ,  Tsutomu Mitsui

    发明人： Shuhei Ishikawa ,  Tsutomu Mitsui

    IPC分类号： B05D302

    CPC分类号： C04B41/52 ,  C04B41/5127 ,  C22C1/1036 ,  H01L21/4871 ,  H01L23/3733 ,  H01L2924/0002 ,  Y10T428/249957 ,  Y10T428/249969 ,  Y10T428/24997 ,  Y10T428/249974 ,  H01L2924/00

    摘要： A high-pressure vessel is allowed to be in an initial state, and a first chamber is disposed downward. Copper or copper alloy is placed in the first chamber, and SiC is set in a second chamber. The high-pressure vessel is tightly sealed, and then the inside of the high-pressure vessel is subjected to vacuum suction through a suction pipe. An electric power is applied to a heater to heat and melt the copper or copper alloy in the first chamber. At a stage at which the molten copper in the first chamber arrives at a predetermined temperature, the high-pressure vessel is inverted by 180 degrees to give a state in which SiC is immersed in the molten copper. An impregnating gas is introduced into the high-pressure vessel through a gas inlet pipe to apply a pressure to the inside of the high-pressure vessel. Thus, SiC is impregnated with the molten copper. The high-pressure vessel is inverted by 180 degrees, and then the impregnating gas in the high-pressure vessel is discharged through a gas outlet pipe, simultaneously with which a cooling gas is introduced into the high-pressure vessel through the gas inlet pipe to cool the high-pressure vessel.

    摘要翻译： 允许高压容器处于初始状态，并且向下设置第一室。 将铜或铜合金放置在第一室中，将SiC置于第二室中。 高压容器密封，然后高压容器的内部通过抽吸管进行真空抽吸。 将电力施加到加热器以加热和熔化第一室中的铜或铜合金。 在第一室中的熔融铜到达预定温度的阶段，将高压容器反转180度，得到SiC浸入熔融铜中的状态。 浸渍气体通过气体入口管被引入高压容器中，以向高压容器的内部施加压力。 因此，用熔融铜浸渍SiC。 将高压容器倒置180度，然后通过气体出口管排出高压容器中的浸渍气体，同时通过气体入口管将冷却气体引入高压容器， 冷却高压容器。

    Composite material for heat sinks for semiconductor devices and method for producing the same
    5.
    发明授权
    Composite material for heat sinks for semiconductor devices and method for producing the same 失效

    公开(公告)号：US6110577A

    公开(公告)日：2000-08-29

    申请号：US22687

    申请日：1998-02-12

    申请人： Shuhei Ishikawa ,  Tsutomu Mitsui

    发明人： Shuhei Ishikawa ,  Tsutomu Mitsui

    IPC分类号： C04B41/88 ,  C04B41/51 ,  C04B41/52 ,  C22C1/10 ,  C22C9/00 ,  H01L21/48 ,  H01L23/373 ,  B32B3/26

    CPC分类号： C04B41/52 ,  C04B41/5127 ,  C22C1/1036 ,  H01L21/4871 ,  H01L23/3733 ,  H01L2924/0002

    摘要： A high-pressure vessel is allowed to be in an initial state, and a first chamber is disposed downward. Copper or copper alloy is placed in the first chamber, and SiC is set in a second chamber. The high-pressure vessel is tightly sealed, and then the inside of the high-pressure vessel is subjected to vacuum suction through a suction pipe. An electric power is applied to a heater to heat and melt the copper or copper alloy in the first chamber. At a stage at which the molten copper in the first chamber arrives at a predetermined temperature, the high-pressure vessel is inverted by 180 degrees to give a state in which SiC is immersed in the molten copper. An impregnating gas is introduced into the high-pressure vessel through a gas inlet pipe to apply a pressure to the inside of the high-pressure vessel. Thus, SiC is impregnated with the molten copper. The high-pressure vessel is inverted by 180 degrees, and then the impregnating gas in the high-pressure vessel is discharged through a gas outlet pipe, simultaneously with which a cooling gas is introduced into the high-pressure vessel through the gas inlet pipe to cool the high-pressure vessel.

    MIMO radio communication apparatus and method
    6.
    发明授权
    MIMO radio communication apparatus and method 有权
    MIMO无线电通信装置和方法

    公开(公告)号：US08102830B2

    公开(公告)日：2012-01-24

    申请号：US11640583

    申请日：2006-12-18

    申请人： Atsuya Yokoi ,  Tsutomu Mitsui

    发明人： Atsuya Yokoi ,  Tsutomu Mitsui

    IPC分类号： H04H20/67

    CPC分类号： H04B7/0845 ,  H04B7/0684

    摘要： A multi-input multi-output (MIMO) radio communication apparatus and method are provided. The MIMO apparatus includes a plurality of reception antennas each having a plurality of antenna patterns; a channel matrix estimation unit for estimating a channel matrix between a plurality of transmission antennas and the plurality of reception antennas; a channel capacity calculation unit for calculating a channel capacity corresponding to a combination of antenna patterns of the plurality of reception antennas by using the estimated channel matrix; and an antenna pattern control unit for changing the antenna patterns of the plurality of reception antennas to maximize the channel capacity. According to the MIMO radio communication apparatus and method, direction can be controlled adaptively to a propagation environment.

    摘要翻译： 提供了一种多输入多输出（MIMO）无线电通信装置和方法。 MIMO装置包括多个接收天线，每个接收天线具有多个天线方向图; 信道矩阵估计单元，用于估计多个发送天线与所述多个接收天线之间的信道矩阵; 信道容量计算单元，用于通过使用所估计的信道矩阵来计算与所述多个接收天线的天线方向图的组合相对应的信道容量; 以及天线图案控制单元，用于改变多个接收天线的天线方向图，以使信道容量最大化。 根据MIMO无线电通信装置和方法，可以适应于传播环境来控制方向。

    ANTENNA DEVICE
    7.
    发明申请
    ANTENNA DEVICE 有权
    天线设备

    公开(公告)号：US20080012778A1

    公开(公告)日：2008-01-17

    申请号：US11737870

    申请日：2007-04-20

    申请人： Tsutomu Mitsui

    发明人： Tsutomu Mitsui

    IPC分类号： H01Q21/12 ,  H01Q9/16

    CPC分类号： H01Q9/34 ,  H01Q1/2275 ,  H01Q1/243 ,  H01Q9/36 ,  H01Q21/28 ,  H01Q25/005

    摘要： An antenna device including a circuit board; a pair of first antenna elements disposed symmetrically to each other about both wide surfaces of the circuit board and a pair of second antenna elements disposed symmetrically to each other about the both wide surfaces of the circuit board; a feeding terminal installed on each of the first antenna elements and each of the second antenna elements; and; and a feeding controller which feeds power selectively to at least one of the first and second antenna elements.

    摘要翻译： 一种天线装置，包括电路板; 一对围绕电路板的两个宽表面彼此对称设置的第一天线元件和围绕电路板的两个宽表面彼此对称设置的一对第二天线元件; 安装在每个第一天线元件和每个第二天线元件中的馈电端子; 和; 以及馈送控制器，其将功率选择性地馈送到第一和第二天线元件中的至少一个。

    Radio communication apparatus and method
    8.
    发明申请
    Radio communication apparatus and method 有权
    无线通信装置及方法

    公开(公告)号：US20070142004A1

    公开(公告)日：2007-06-21

    申请号：US11640583

    申请日：2006-12-18

    申请人： Atsuya Yokoi ,  Tsutomu Mitsui

    发明人： Atsuya Yokoi ,  Tsutomu Mitsui

    IPC分类号： H04B1/04

    CPC分类号： H04B7/0845 ,  H04B7/0684

    摘要： A multi-input multi-output (MIMO) radio communication apparatus and method are provided. The MIMO apparatus includes a plurality of reception antennas each having a plurality of antenna patterns; a channel matrix estimation unit for estimating a channel matrix between a plurality of transmission antennas and the plurality of reception antennas; a channel capacity calculation unit for calculating a channel capacity corresponding to a combination of antenna patterns of the plurality of reception antennas by using the estimated channel matrix; and an antenna pattern control unit for changing the antenna patterns of the plurality of reception antennas to maximize the channel capacity. According to the MIMO radio communication apparatus and method, direction can be controlled adaptively to a propagation environment.

    摘要翻译： 提供了一种多输入多输出（MIMO）无线电通信装置和方法。 MIMO装置包括多个接收天线，每个接收天线具有多个天线方向图; 信道矩阵估计单元，用于估计多个发送天线与所述多个接收天线之间的信道矩阵; 信道容量计算单元，用于通过使用所估计的信道矩阵来计算与所述多个接收天线的天线方向图的组合相对应的信道容量; 以及天线图案控制单元，用于改变多个接收天线的天线方向图，以使信道容量最大化。 根据MIMO无线电通信装置和方法，可以适应于传播环境来控制方向。

    Planar inverted F antenna
    10.
    发明授权
    Planar inverted F antenna 有权

    公开(公告)号：US06667717B2

    公开(公告)日：2003-12-23

    申请号：US10117544

    申请日：2002-04-05

    申请人： Tsutomu Mitsui

    发明人： Tsutomu Mitsui

    IPC分类号： H01Q1112

    CPC分类号： H01Q9/0421 ,  H01Q1/243 ,  H01Q1/48

    摘要： A planar inverted F antenna with stable radiation characteristics, which is not vulnerable to ambient influence, having, an insulator, a radiation device formed on one surface of the insulator and a grounding plate formed on the other surface thereof. A coaxial cable has a central conductor electrically connected to the radiation device and an outer conductor electrically connected to the grounding plate at two points spaced from each other by approximately a quarter of the wavelength of current flowing through the outer conductor. If leakage current flows along the outer conductor, the leakage current is negated by an inverse-phase current flowing through the grounding plate.