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    • 103. 发明授权
    • Snow removing machine
    • 除雪机
    • US06499236B2
    • 2002-12-31
    • US09893719
    • 2001-06-28
    • Isao YoshidaYasunori YamamotoNorikazu ShimizuSeishu SakaiMasakatsu Kono
    • Isao YoshidaYasunori YamamotoNorikazu ShimizuSeishu SakaiMasakatsu Kono
    • A63C1910
    • E01H5/04B62D55/0882Y10T74/20624
    • A snow removing machine has a vehicle body having a body frame, a snow removing section mounted on a front portion of the body frame for removing snow, an operating handle mounted to a rear portion of the body frame and having a first handle portion and a second handle portion, and a pair of grip portions each mounted on a respective one of the first and second handle portions of the operating handle. A forward and aft drive changeover switch is directly mounted on the first handle portion of the operating handle for changing over a traveling direction of the vehicle body. A height control operation lever is directly mounted on the first handle portion of the operating handle for adjusting a height of the snow removing section. A speed control operation lever is directly mounted on the second handle portion of the operating handle for adjusting a traveling speed of the vehicle body.
    • 除雪机具有车身,车体具有主体框架,除雪部分安装在车身框架的前部以除雪;操作手柄,其安装在主体框架的后部,并具有第一把手部分和 第二把手部分和一对把手部分,每个把手部分安装在操作手柄的第一和第二把手部分中的相应一个上。 前后驱动切换开关直接安装在操作手柄的第一把手部分上,用于切换车体的行进方向。 高度控制操作杆直接安装在操作手柄的第一把手部分上,用于调节除雪部分的高度。 速度控制操作杆直接安装在操作手柄的第二把手部分上,用于调节车身行驶速度。
    • 104. 发明授权
    • Fingerprint recognition device and fingerprint reading window construction
    • 指纹识别装置和指纹阅读窗口构建
    • US06496630B2
    • 2002-12-17
    • US09799575
    • 2001-03-07
    • Hajimu IwaiIsao Yoshida
    • Hajimu IwaiIsao Yoshida
    • G02B604
    • G06K9/00046
    • To enable easy replacement of a soiled fingerprint reading window. To reduce the number of light sources and achieve miniaturization. An aperture 5 is formed in part of a case K constituting the outer shell of a fingerprint recognition device, aperture 5 being covered by a cover member 4. Cover member 4 that covers aperture 5 constitutes part of case K. An aperture 6 formed in cover member 4 is covered by a window member 7 for fingerprint reading consisting of an optically transparent member. Window member 7 is arranged on the under-surface of cover member 4 and is resiliently held by the holding feet 11 formed on cover member 4. Light source 42, light-guide plate 43, reflection mirrors 33 and 34, image pick-up lens 35 and image pick-up element 36 are held by holding body H which is fixedly arranged in case K. Window member 7 is clamped between supporting faces 38 of holding body H and cover member 4 so as to be immovable. Light-guide plate 43 is arranged adjacent and inclined with respect to window member 7. Detection light rays from light-emitting elements 42 are sufficiently diffused while passing through light-guide plate 43 and are emitted in planar fashion from light-guide plate 43 towards window member 7.
    • 以便轻松更换脏污的指纹阅读窗。 为了减少光源的数量并实现小型化。在构成指纹识别装置的外壳的壳体K的一部分上形成有孔5,孔5被盖构件4覆盖。覆盖孔5的盖构件4构成 形成在盖构件4中的孔6由用于由光学透明构件组成的指纹读取用窗构件7覆盖。 窗构件7布置在盖构件4的下表面上,并由形成在盖构件4上的保持脚11弹性地保持。光源42,导光板43,反射镜33和34,摄像透镜 35和摄像元件36由固定地布置在壳体K中的保持体H保持。窗构件7被夹持在保持体H的支撑面38和盖构件4之间以便不可移动。导光板43 被布置成相对于窗构件7相邻并倾斜。来自发光元件42的检测光线在穿过导光板43时被充分地扩散,并且以平面方式从导光板43朝向窗构件7发射。
    • 106. 发明授权
    • Insulated gate type semiconductor apparatus with a control circuit
    • 具有控制电路的绝缘栅型半导体装置
    • US6057998A
    • 2000-05-02
    • US998644
    • 1997-12-29
    • Kozo SakamotoIsao Yoshida
    • Kozo SakamotoIsao Yoshida
    • H03K17/08H03K17/082H02H3/00
    • H03K17/0828H03K17/0822H03K2017/0806
    • There is disclosed a semiconductor apparatus such as a power MOSFET, an IGBT, or the like having therein a control circuit such as an over-heating protection circuit and an over-current protection circuit, which realizes both of high-speed operation and prevention of erroneous operation caused by a parasitic device.In order to prevent erroneous operation of a power MOSFET 30 and a protection circuit 21 caused by a parasitic npn transistor 29 of an MOSFET 32, a control circuit 20 controls so that when the voltage of a gate terminal 2 is positive relative to that of a source terminal 3, a switch circuit SW3 is turned on, when the voltage of the gate terminal 2 is negative relative to that of the source terminal 3, a switch circuit SW2 is turned on, and when the gate terminal 2 and the source terminal 3 have an almost same potential and a drain terminal 1 has a high potential, the switch circuit SW2 is turned on.By adding such a control circuit, an insulated gate semiconductor apparatus having therein the protection circuit according to the invention can reduce a leakage current flowing from the drain terminal to the gate terminal when a negative voltage is applied to the gate and can operate at high speed without causing drop of a drain breakdown voltage.
    • 公开了具有诸如过热保护电路和过电流保护电路等控制电路的功率MOSFET,IGBT等半导体装置,实现了高速运行和防止 由寄生器件引起的错误操作。 为了防止由MOSFET32的寄生npn晶体管29引起的功率MOSFET 30和保护电路21的错误操作,控制电路20控制,使得当栅极端子2的电压相对于 源极端子3,开关电路SW3导通,当栅极端子2的电压相对于源极端子3的电压为负时,开关电路SW2导通,并且当栅极端子2和源极端子3 具有几乎相同的电位,并且漏极端子1具有高电位,开关电路SW2导通。 通过添加这样的控制电路,其中具有根据本发明的保护电路的绝缘栅半导体装置可以减小当向栅极施加负电压并且可以高速运行时从漏极端子流到栅极端子的漏电流 而不会引起漏极击穿电压的下降。
    • 107. 发明授权
    • Semiconductor circuit device having an insulated gate type transistor
    • 具有绝缘栅型晶体管的半导体电路器件
    • US5903034A
    • 1999-05-11
    • US710009
    • 1996-09-11
    • Kozo SakamotoIsao Yoshida
    • Kozo SakamotoIsao Yoshida
    • H01L27/02H01L27/06H01L29/76H01L29/94H01L31/062H01L31/113
    • H01L27/0251H01L27/0629
    • In a semiconductor circuit device having a substrate, a first region of a first conductivity type formed in the substrate, a second region of a second conductivity type contacted to the first region and a MISFET formed in the second region, there is a problem of that a parasitic npn bipolar transistor constituted by the first region, the second region and a source or drain of the MISFET activates. In this invention, switching circuitry is provided to make the second region floating or to connect the second region with the source or drain of the MISFET when a negative first input voltage is input to a source or a drain of the first MISFET. By virtue of the switching circuitry, no base current of the parasitic bipolar transistor occurs, thereby preventing operation of the parasitic transistor. In particular, when the switching circuitry operates to cause the second region to float, the base of the parasitic bipolar transistor will float, and the bipolar transistor cannot operate. Alternatively, when the switching circuitry connects the second region with the source or drain, the base-emitter junction of the parasitic bipolar transistor will be shorted, which also prevents its operation.
    • 在具有衬底的半导体电路器件中,形成在衬底中的第一导电类型的第一区域,与第一区域接触的第二导电类型的第二区域和形成在第二区域中的MISFET,存在这样的问题: 由MISFET的第一区域,第二区域和源极或漏极构成的寄生npn双极晶体管激活。 在本发明中,当负的第一输入电压输入到第一MISFET的源极或漏极时,提供开关电路以使第二区域浮置或者将第二区域与MISFET的源极或漏极连接。 由于开关电路,不会发生寄生双极晶体管的基极电流,从而防止寄生晶体管的工作。 特别地,当开关电路操作以使第二区域浮动时,寄生双极晶体管的基极将浮置,并且双极晶体管不能工作。 或者,当开关电路将第二区域与源极或漏极连接时,寄生双极晶体管的基极 - 发射极结将被短路,这也阻止其工作。