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公开(公告)号：US09699847B2
公开(公告)日：2017-07-04
申请号：US15011739
申请日：2016-02-01
Inventor： Akinori Hiramatsu , Shigeru Ido , Daisuke Ueda , Hiroshi Kido
IPC: H05B33/08
CPC classification number: H05B33/0824 , H05B33/0803 , H05B33/0854
Abstract: The light source unit includes a light source circuit including N (N≧3) pairs of a light source group including one or more solid light emitting elements and a constant current circuit connected in series with the light source group to keep, constant, current flowing through the light source group, a full-wave rectification circuit for performing full-wave rectification on AC voltage, and a control circuit. The first pair is connected to the full-wave rectification circuit. The k-th (2≦k≦N) pair is connected in parallel with the constant current circuit of the (k−1)-th pair so that the light source groups of the k-th and (k−1)-th pairs are in series. The control circuit terminates operations of the constant current circuits of the N pairs or limits currents flowing through the light source groups of the N pairs in response to detection of light or a signal.
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公开(公告)号：US09438130B2
公开(公告)日：2016-09-06
申请号：US14601592
申请日：2015-01-21
Inventor： Shuichi Nagai , Yasuhiro Yamada , Daisuke Ueda
CPC classification number: H02M5/297 , H02M2005/2932
Abstract: A semiconductor device includes a semiconductor switch, a first rectifier circuit, and a second rectifier circuit. The semiconductor switch, the first rectifier circuit, and the second rectifier circuit are integrated on a common board. On the board, a first output terminal of the first rectifier circuit is coupled to a first gate terminal of the semiconductor switch, and a first output reference terminal of the first rectifier circuit is coupled to a first source terminal of the semiconductor switch. On the board, a second output terminal of the second rectifier circuit is coupled to a second gate terminal of the semiconductor switch, and a second output reference terminal of the second rectifier circuit is coupled to a second source terminal of the semiconductor switch.
Abstract translation: 半导体器件包括半导体开关，第一整流器电路和第二整流器电路。 半导体开关，第一整流电路和第二整流电路集成在公共板上。 在板上，第一整流电路的第一输出端耦合到半导体开关的第一栅极端，第一整流电路的第一输出参考端耦合到半导体开关的第一源端。 在板上，第二整流电路的第二输出端耦合到半导体开关的第二栅极端子，第二整流电路的第二输出参考端耦合到半导体开关的第二源端。
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公开(公告)号：US09401403B2
公开(公告)日：2016-07-26
申请号：US14636163
申请日：2015-03-02
Inventor： Hidekazu Umeda , Masahiro Ishida , Tetsuzo Ueda , Daisuke Ueda
IPC: H01L21/02 , H01L21/762 , H01L29/205 , H01L29/778 , H01L29/86 , H01L29/15 , H01L29/20 , H01L29/36
CPC classification number: H01L29/205 , H01L21/02381 , H01L21/02458 , H01L21/02507 , H01L21/0254 , H01L29/1066 , H01L29/155 , H01L29/2003 , H01L29/36 , H01L29/7786 , H01L29/86
Abstract: A nitride semiconductor structure of the present disclosure comprises a semiconductor substrate, and a layer formed over the semiconductor substrate and comprising plural nitride semiconductor layers. The semiconductor substrate has, from a side thereof near the layer comprising the plural nitride semiconductor layers, a surface region and an internal region in this order. The surface region has a resistivity of 0.1 Ωcm or more, and the internal region has a resistivity of 1000 Ωcm or more.
Abstract translation: 本公开的氮化物半导体结构包括半导体衬底和形成在半导体衬底上并包括多个氮化物半导体层的层。 半导体衬底从其包括多个氮化物半导体层的层的一侧开始依次具有表面区域和内部区域。 表面区域的电阻率为0.1Ωcm以上，内部区域的电阻率为1000Ωcm以上。
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公开(公告)号：US09374865B2
公开(公告)日：2016-06-21
申请号：US14796287
申请日：2015-07-10
Inventor： Daisuke Yamahara , Takeshi Kamoi , Hiroshi Kido , Akinori Hiramatu , Katsushi Seki , Daisuke Ueda , Shigeru Ido
CPC classification number: H05B33/083 , H05B33/0809
Abstract: A lighting device includes a rectifier, a constant current regulator and a charge-discharge circuit. The constant current regulator is electrically connected in series with first and second solid-state light-emitting element arrays between a pair of output terminals of the rectifier. The constant current regulator is configured to adjust a current flowing through the second solid-state light-emitting element array to a constant current. The charge-discharge circuit is electrically connected in series with the first solid-state light-emitting element array between the pair of output terminals of the rectifier. The charge-discharge circuit includes a charge storage element, and is configured so that a charge current flows to the charge storage element through the first solid-state light-emitting element array, and so that a discharge current flows from the charge storage element to the second solid-state light-emitting element array.
Abstract translation: 照明装置包括整流器，恒流调节器和充放电电路。 恒流调节器与整流器的一对输出端之间的第一和第二固态发光元件阵列串联电连接。 恒流调节器被配置为将流过第二固态发光元件阵列的电流调节到恒定电流。 充放电电路与整流器的一对输出端子之间的第一固态发光元件阵列串联电连接。 充放电电路包括电荷存储元件，并且被配置为使得充电电流通过第一固态发光元件阵列流到电荷存储元件，并且使得放电电流从电荷存储元件流到 第二固态发光元件阵列。
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公开(公告)号：US09380667B2
公开(公告)日：2016-06-28
申请号：US14743539
申请日：2015-06-18
Inventor： Shigeru Ido , Hiroshi Kido , Akinori Hiramatu , Takeshi Kamoi , Katsushi Seki , Daisuke Yamahara , Daisuke Ueda
CPC classification number: H05B33/083 , H05B33/0809 , H05B33/089 , H05B37/02
Abstract: An illumination device includes a main light source block having a plurality of main light sources and a plurality of current limiters, and an auxiliary light source block having an auxiliary light source and a constant-current unit. A series circuit of the auxiliary light source and the constant-current unit is electrically connected in parallel with the main light source block, between first and second output terminals of a rectifier. A smoothing capacitor is electrically connected in parallel with a specific main light source among the plurality of main light sources. The specific main light source and a corresponding current limiter are electrically connected in parallel with the series circuit of the auxiliary light source and the constant-current unit.
Abstract translation: 照明装置包括具有多个主光源和多个限流器的主光源块，以及具有辅助光源和恒流单元的辅助光源块。 辅助光源和恒流单元的串联电路在整流器的第一和第二输出端子之间与主光源块并联电连接。 平滑电容器与多个主光源中的特定主光源并联地电连接。 特定主光源和对应的限流器与辅助光源和恒流单元的串联电路并联电连接。
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Patent Agency Ranking
公开(公告)号：US10164123B2
公开(公告)日：2018-12-25
申请号：US14714292
申请日：2015-05-17
Inventor： Shigeo Yoshii , Junji Hirase , Daisuke Ueda
IPC: H01L29/861 , H01L27/146 , H01L29/786 , H01L49/02 , H01L27/30 , H01L27/12
Abstract: An imaging device includes a semiconductor substrate comprising a first semiconductor; and a unit pixel cell provided to the semiconductor substrate. The unit pixel cell includes: a photoelectric converter that includes a pixel electrode and a photoelectric conversion layer, the photoelectric converter converting incident light into electric charges; a charge detection transistor that includes a part of the semiconductor substrate and detects the electric charges; and a reset transistor that includes at least a part of a first semiconductor layer comprising a second semiconductor and initializes a voltage of the photoelectric converter. The pixel electrode is located above the charge detection transistor. The reset transistor is located between the charge detection transistor and the pixel electrode. A band gap of the second semiconductor is larger than a band gap of the first semiconductor.
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公开(公告)号：US09735456B2
公开(公告)日：2017-08-15
申请号：US14783617
申请日：2014-04-14
Inventor： Yasufumi Kawai , Shuichi Nagai , Daisuke Ueda
IPC: H01P5/02 , H01P1/201 , H01L23/66 , H01L25/065 , H01P7/10 , H01P1/203 , H01P7/00 , H02J17/00 , H01P5/18 , H01L23/498
CPC classification number: H01P1/201 , H01L23/49816 , H01L23/49822 , H01L23/49827 , H01L23/66 , H01L25/0655 , H01L2224/16 , H01L2224/48091 , H01L2224/48227 , H01L2224/49175 , H01L2924/15311 , H01L2924/19107 , H01P1/20345 , H01P1/20381 , H01P5/187 , H01P7/10 , H02J17/00 , H02J50/12 , H02J50/70 , H01L2924/00014 , H01L2924/00
Abstract: A high-frequency transmission device includes first and second resonators as ring-shaped wires each having an opening part at a part thereof, first and second input/output terminals each electrically connected to both resonators, a first ground shield formed on a plane different from planes on which both resonators are arranged, a second ground shield formed on a plane different from the planes on which both resonators and the first ground shield are arranged, and first and second ground wires each formed to surround peripheries of both resonators. The ground shields and the ground wires are respectively connected to each other. A dielectric wire is present between both ground wires, and the ground wires are not electrically connected to each other.
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公开(公告)号：US09438230B2
公开(公告)日：2016-09-06
申请号：US14690426
申请日：2015-04-19
Inventor： Shuichi Nagai , Yasufumi Kawai , Daisuke Ueda
IPC: H03K17/06 , H03K17/689 , H03K17/16 , H03K17/691 , H03K17/687 , H02M1/08
CPC classification number: H03K17/689 , H02M1/08 , H03K17/163 , H03K17/165 , H03K17/6877 , H03K17/691 , H03K2217/009
Abstract: A gate drive circuit in an aspect of the present disclosure includes a modulated signal generation circuit that generates a first modulated signal, a first isolator that isolatedly transmits the first modulated signal, and a first rectifier circuit that generates a first output signal by rectifying the first modulated signal. The first modulated signal includes a first amplitude, a second amplitude larger than the first amplitude, and a third amplitude larger than the second amplitude. The first output signal includes a first output voltage value according to the first amplitude, a second output voltage value according to the second amplitude, and a third output voltage value according to the third amplitude.
Abstract translation: 本公开的一个方面的栅极驱动电路包括产生第一调制信号的调制信号产生电路，隔离发送第一调制信号的第一隔离器，以及通过对第一调制信号进行整流产生第一输出信号的第一整流电路 调制信号。 第一调制信号包括第一幅度，比第一幅度大的第二幅度和大于第二幅度的第三幅度。 第一输出信号包括根据第一幅度的第一输出电压值，根据第二幅度的第二输出电压值和根据第三幅度的第三输出电压值。
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公开(公告)号：US09232597B2
公开(公告)日：2016-01-05
申请号：US14619645
申请日：2015-02-11
Inventor： Daisuke Ueda , Hiroshi Kido , Akinori Hiramatu , Junichi Hasegawa , Shigeru Ido
CPC classification number: H05B33/0848 , H05B33/0815 , H05B33/089
Abstract: A lighting device includes: first and second power feed terminals between which a light source of a light source device is configured to be electrically connected; a power supply circuit having output ends electrically connected respectively to the first and second power feed terminals and configured to output a DC power across the first and second power feed terminals; a control circuit configured to control the power supply circuit; and at least one identifying terminal for identifying a rated current of a light source. The control circuit is configured to identify a rated current of a light source connected between the first and second power feed terminals by detecting whether the identifying terminal is in floating state or not, and to control the power supply circuit so as to supply a current corresponding to the identified rated current through the first and second power feed terminals.
Abstract translation: 照明装置包括：第一和第二馈电端子，其中光源装置的光源被配置为电连接; 电源电路，其输出端分别电连接到第一和第二馈电端子，并且被配置为在第一和第二馈电端子上输出DC电力; 控制电路，被配置为控制所述电源电路; 以及用于识别光源的额定电流的至少一个识别终端。 该控制电路被配置为通过检测识别终端是否处于浮置状态来识别连接在第一和第二馈电端子之间的光源的额定电流，并且控制电源电路以便提供对应的电流 通过第一和第二馈电端子到所识别的额定电流。
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公开(公告)号：US09750095B2
公开(公告)日：2017-08-29
申请号：US15202794
申请日：2016-07-06
Inventor： Shigeru Ido , Akinori Hiramatu , Hiroshi Kido , Takeshi Kamoi , Daisuke Ueda
CPC classification number: H05B33/0815 , H04B10/11 , H05B33/0806 , H05B33/0842
Abstract: A control circuit is configured to convert a DC voltage that is outputted from a DC power supply to a square wave voltage by switching the switching element according to a PWM signal having a duty ratio that corresponds to a light modulation level of the light source unit, and cause the square wave voltage to be outputted to the light source unit. The control circuit includes a voltage controller configured to control an operating voltage for operating the switching element such that at least one of a rising time and a falling time of a current that flows through the switching element is 1 microsecond or more.
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