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    • 22. 发明授权
    • Light-emitting semiconductor device using gallium nitride group compound
    • 使用氮化镓族化合物的发光半导体装置
    • US06362017B1
    • 2002-03-26
    • US09586607
    • 2000-06-02
    • Katsuhide ManabeAkira MabuchiHisaki KatoMichinari SassaNorikatsu KoideShiro YamazakiMasafumi HashimotoIsamu Akasaki
    • Katsuhide ManabeAkira MabuchiHisaki KatoMichinari SassaNorikatsu KoideShiro YamazakiMasafumi HashimotoIsamu Akasaki
    • H01L2100
    • H01L33/32H01L33/007H01L33/025
    • Disclosed herein are (1) a light-emitting semiconductor device that uses a gallium nitride compound semiconductor (AlxGa1−xN) in which the n-layer of n-type gallium nitride compound semiconductor (AlxGa1−xN) is of double-layer structure including an n-layer of low carrier concentration and an n+-layer of high carrier concentration, the former being adjacent to the i-layer of insulating gallium nitride compound semiconductor (AlxGa1−xN); (2) a light-emitting semiconductor device of similar structure as above in which the i-layer is of double-layer structure including an iL-layer of low impurity concentration containing p-type impurities in comparatively low concentration and an iH-layer of high impurity concentration containing p-type impurities in comparatively high concentration, the former being adjacent to the n-layer; (3) a light-emitting semiconductor device having both of the above-mentioned features and (4) a method of producing a layer of an n-type gallium nitride compound semiconductor (AlxGa1−xN) having a controlled conductivity from an organometallic compound by vapor phase epitaxy, by feeding a silicon-containing gas and other raw material gases together at a controlled mixing ratio.
    • 这里公开的是(1)使用其中n型氮化镓化合物半导体(Al x Ga 1-x N)的n层是双层结构的氮化镓化合物半导体(Al x Ga 1-x N)的发光半导体器件,包括 低载流子浓度的n层和高载流子浓度的n +层,前者与绝缘的氮化镓化合物半导体(Al x Ga 1-x N)的i层相邻; (2)具有上述类似结构的发光半导体器件,其中i层是双层结构,其包括含有较低浓度的p型杂质的低杂质浓度的iL层和iH层 含有较高浓度的p型杂质的高杂质浓度,前者与n层相邻; (3)具有上述特征的发光半导体器件和(4)由有机金属化合物具有受控导电性的n型氮化镓系化合物半导体(Al x Ga 1-x N)的层的制造方法, 通过以受控的混合比将含硅气体和其它原料气体一起供给到气相外延。
    • 28. 发明授权
    • Rectifier without active switches
    • 整流器无有源开关
    • US07468897B2
    • 2008-12-23
    • US10580272
    • 2004-11-18
    • Nobuhiro NakamuraMasafumi Hashimoto
    • Nobuhiro NakamuraMasafumi Hashimoto
    • H02H7/125
    • H02M7/06
    • In this power converter, a first capacitor for stepping down of voltage, a first diode for half-wave rectification, and a second capacitor for smoothing are interposed between first and second input connections for input of AC voltage; and a second diode for discharge of the first capacitor is interposed between the second input connection and an input end of the first diode. AC voltage supplied from an AC power supply is divided (stepped down) by the first and second capacitors, rectified to DC voltage by the first diode, smoothed by the second capacitor, and supplied, as an output voltage defined by Zener diodes, to the load side through the first and second output connections.
    • 在该功率转换器中,用于输入交流电压的第一和第二输入连接之间插入用于降压的第一电容器,用于半波整流的第一二极管和用于平滑的第二电容器; 并且用于放电第一电容器的第二二极管被插入在第二输入连接和第一二极管的输入端之间。 由交流电源提供的交流电压由第一和第二电容器分压(降压),由第一二极管整流为直流电压,由第二电容器平滑,并作为齐纳二极管定义的输出电压提供给 负载侧通过第一和第二输出连接。
    • 30. 发明申请
    • Power converter
    • 电源转换器
    • US20070133237A1
    • 2007-06-14
    • US10580272
    • 2004-11-18
    • Nobuhiro NakamuraMasafumi Hashimoto
    • Nobuhiro NakamuraMasafumi Hashimoto
    • H02M3/06
    • H02M7/06
    • In this power converter, a first capacitor for stepping down of voltage, a first diode for half-wave rectification, and a second capacitor for smoothing are interposed between first and second input connections for input of AC voltage; and a second diode for discharge of the first capacitor is interposed between the second input connection and an input end of the first diode. AC voltage supplied from an AC power supply is divided (stepped down) by the first and second capacitors, rectified to DC voltage by the first diode, smoothed by the second capacitor, and supplied, as an output voltage defined by Zener diodes, to the load side through the first and second output connections.
    • 在该功率转换器中,用于输入交流电压的第一和第二输入连接之间插入用于降压的第一电容器,用于半波整流的第一二极管和用于平滑的第二电容器; 并且用于放电第一电容器的第二二极管被插入在第二输入连接和第一二极管的输入端之间。 由交流电源提供的交流电压由第一和第二电容器分压(降压),由第一二极管整流为直流电压,由第二电容器平滑,并作为齐纳二极管定义的输出电压提供给 负载侧通过第一和第二输出连接。