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    • 51. 发明授权
    • Misfire detecting circuit for internal combustion engine
    • 内燃机失火检测电路
    • US5561239A
    • 1996-10-01
    • US379294
    • 1995-01-27
    • Yukio Yasuda
    • Yukio Yasuda
    • F02P17/12F02D1/00F02P9/00
    • F02P17/12F02P2017/125F02P2017/128
    • There is provided a misfire detecting circuit for an internal combustion engine for detecting a misfire on the basis of the presence or absence of an ion current caused by combustion by applying a voltage to an ignition plug of the internal combustion engine, which circuit prevents malfunction caused by stray capacitance generated in the line up to the ignition plug and by the input impedance of the circuit. The misfire detecting circuit includes an ion current detection section which is formed of a diode for causing electric current to flow out from a capacitor, which diode is connected between the ground and the electrode on the low potential side of the capacitor which is charged by electric current at the time of ignition and charged to a predetermined voltage for detecting the ion current, and a current/voltage conversion section which is formed of a diode for causing electric current to flow out and of an operational amplifier whose inverting input is connected to the electrode on the low potential side of the capacitor and whose non-inverting input is connected to the ground.
    • 提供了一种用于内燃机的失火检测电路,用于基于通过向内燃机的火花塞施加电压而基于燃烧引起的离子电流的存在或不存在来检测失火,该电路防止故障 通过在线路中产生的杂散电容直到火花塞和电路的输入阻抗。 失火检测电路包括离子电流检测部,其由用于使电流从电容器流出的二极管形成,该二极管连接在接地和电容器的低电位侧的电极之间,该电容器由电 点火时的电流和充电到用于检测离子电流的预定电压,以及由用于使电流流出的二极管形成的电流/电压转换部分和反相输入连接到的运算放大器 电容器的低电位侧的电极,其非反相输入端连接到地。
    • 54. 发明授权
    • Light source
    • 光源
    • US08182127B2
    • 2012-05-22
    • US12646007
    • 2009-12-23
    • Yukio YasudaTaku SumitomoMasaki Kato
    • Yukio YasudaTaku SumitomoMasaki Kato
    • H01S3/00F21V9/16
    • H01J65/042G03F7/70016H01J61/025
    • A light source is provided. The light source includes: an elliptical reflection mirror having first and second focal points; a discharge chamber in which a luminescent substance is enclosed and which is disposed on the first focal point; a laser light generator which emits the laser light; and a laser light guide which guides the laser light from an opening side of the elliptical reflection mirror into the discharge chamber. The luminescent substance is excited by providing the laser light to the luminescent substance so as to emit light, and the light is reflected by the elliptical reflection mirror. The laser light guide is disposed in a shade area in which the light reflected by the elliptical reflection mirror is blocked by the discharge chamber.
    • 提供光源。 光源包括:具有第一和第二焦点的椭圆反射镜; 放电室,其中发光物质被包围并设置在第一焦点上; 发射激光的激光发生器; 以及将激光从椭圆反射镜的开口侧引导到放电室的激光导向器。 通过向发光物质提供激光以发光,激发光发光物质,并且光被椭圆反射镜反射。 激光导光体设置在阴影区域中,由阴离子反射镜反射的光被排出室阻挡。
    • 55. 发明申请
    • POWER SEMICONDUCTOR DEVICE FOR IGNITER
    • IGNITER的功率半导体器件
    • US20110134581A1
    • 2011-06-09
    • US12877348
    • 2010-09-08
    • Shinsuke GODOYukio YasudaAtsunobu Kawamoto
    • Shinsuke GODOYukio YasudaAtsunobu Kawamoto
    • F23Q3/00
    • F02P3/0554H01L2924/0002H01L2924/00
    • A power semiconductor device for an igniter comprises: a semiconductor switching device causing a current to flow through a primary side of an ignition coil or shutting off the current flowing through the primary side of the ignition coil; an integrated circuit driving and controlling the semiconductor switching device; and a temperature sensing element sensing temperature of the semiconductor switching device, wherein the integrated circuit including an overheat protection circuit limiting a current through the semiconductor switching device to a value lower than a current through the semiconductor switching device during normal operation, when temperature sensed by the temperature sensing element is over predetermined temperature.
    • 一种用于点火器的功率半导体器件包括:半导体开关器件,其使电流流过点火线圈的初级侧或切断流过点火线圈的初级侧的电流; 驱动和控制半导体开关器件的集成电路; 以及温度感测元件感测半导体开关器件的温度,其中集成电路包括过热保护电路,其在正常操作期间将通过半导体开关器件的电流限制在低于通过半导体开关器件的电流的值,当温度由 温度感测元件超过预定温度。
    • 57. 发明授权
    • IGBT with a Schottky barrier diode
    • 具有肖特基势垒二极管的IGBT
    • US06921958B2
    • 2005-07-26
    • US10689058
    • 2003-10-21
    • Yukio Yasuda
    • Yukio Yasuda
    • H01L27/04H01L21/822H01L21/8234H01L27/06H01L27/07H01L27/088H01L29/78H01L31/0328H03K17/04H03K17/0812H01L27/95
    • H01L27/0716H03K17/0406H03K17/08128
    • A semiconductor device which IGBT (Z1) and a control circuit (B1) for driving the IGBT (Z1) are formed on the same semiconductor substrate by using a junction isolation technology, includes an input terminal (P1) for inputting a drive signal of the IGBT (Z1), a Schottky barrier diode (D2) having an anode connected to the input terminal (P1) and a cathode connected to an input terminal (B11) of the control circuit (B1), and a p-channel MOSFET (T1) for shorting both ends of the Schottky barrier diode (D2) when the voltage of the drive signal input to the input terminal (P1) is higher than a predetermined voltage, thereby latch-up of the parasitic element is prevented and a transmission loss of the input signal can be reduced.
    • 通过使用结隔离技术,在同一半导体衬底上形成用于驱动IGBT(Z 1)的IGBT(Z 1)和控制电路(B 1)的半导体装置包括:输入端子(P1) IGBT(Z 1)的驱动信号,具有连接到输入端子(P 1)的阳极的肖特基势垒二极管(D 2)和连接到控制电路(B1)的输入端子(B11)的阴极, 以及当输入到输入端子(P1)的驱动信号的电压高于预定电压时,用于短路肖特基势垒二极管(D 2)两端的p沟道MOSFET(T 1) 防止寄生元件的上升,并且可以减小输入信号的传输损耗。
    • 60. 发明授权
    • Mercury discharge lamp of the short arc type
    • 汞灯放电灯短弧型
    • US06720731B2
    • 2004-04-13
    • US10229003
    • 2002-08-28
    • Yukio YasudaYoshinoir Aiura
    • Yukio YasudaYoshinoir Aiura
    • H01J1720
    • H01J61/0732G03F7/70016H01J61/20H01J61/86
    • A short arc mercury discharge lamp including an arc tube filled with at least mercury and a rare gas, a cathode and an anode positioned opposite to each other within the arc tube, the cathode having an tapered area which tapers in a direction towards the anode and a projection which protrudes from the tapered area in a direction towards the anode. The amount of mercury to be added in the arc tube is in a range of 0.2≦n≦52, where n is the weight (mg/cm3) of the mercury per unit of volume, and a pressure of the rare gas to be added in the arc tube is in a range of 0.1≦p≦800, where p is the pressure (kPa) of the rare gas at an ambient temperature of 25° C.
    • 一种短弧汞灯放电灯,其包括在电弧管内至少填充有汞和稀有气体的电弧管,阴极和阳极,阴极具有朝向阳极的方向逐渐变细的锥形区域, 从朝向阳极的方向从锥形区域突出的突起。 添加在电弧管中的汞的量在0.2 <= n <52的范围内,其中n是每单位体积的汞的重量(mg / cm 3),以及 添加到电弧管中的稀有气体在0.1 <= p <= 800的范围内,其中p是在25℃的环境温度下稀有气体的压力(kPa)