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    Receiving optical subassembly with an improved high frequency performance
    53.
    发明授权
    Receiving optical subassembly with an improved high frequency performance 有权
    接收具有改进的高频性能的光学组件

    公开(公告)号：US07501661B2

    公开(公告)日：2009-03-10

    申请号：US11368608

    申请日：2006-03-07

    申请人： Satoshi Iguchi ,  Yasushi Fujimura ,  Hiroyuki Yabe

    发明人： Satoshi Iguchi ,  Yasushi Fujimura ,  Hiroyuki Yabe

    IPC分类号： H01L27/15

    CPC分类号： H01L31/0203 ,  G02B6/4292 ,  H01L31/12 ,  H01L2224/48137 ,  H01L2924/30107 ,  H01L2924/3011 ,  H01L2224/48091 ,  H01L2924/00014 ,  H01L2924/00

    摘要： The present invention provides a receiving optical subassembly (ROSA) with a co-axial shape and a stem for mounting semiconductor devices thereon that improves the high frequency performance of the ROSA. The ROSA mounts a photodiode (PD) and a pre-amplifier on a stem and the stem has a hollow the PD and the pre-amplifier are mounted therein. Since the hollow has a depth substantially equal to a thickness of the pre-amplifier, the bonding wire from the pre-amplifier to the surface of the stem may become shortest to reduce the parasitic inductance of the bonding wire and to enhance the high frequency performance of the ROSA.

    摘要翻译： 本发明提供一种具有同轴形状的接收光学子组件（ROSA）和用于在其上安装半导体器件的杆，其改善了ROSA的高频性能。 ROSA在杆上安装光电二极管（PD）和前置放大器，并且杆具有中空的PD，并且前置放大器安装在其中。 由于中空部的深度基本上等于前置放大器的厚度，所以从前置放大器到杆的表面的接合线可能变得最短以减小接合线的寄生电感并提高高频性能 的ROSA。

    Exhaust emission control system of internal combustion engine
    56.
    发明授权
    Exhaust emission control system of internal combustion engine 有权
    内燃机废气排放控制系统

    公开(公告)号：US06212885B1

    公开(公告)日：2001-04-10

    申请号：US09300686

    申请日：1999-04-27

    申请人： Shinya Hirota ,  Toshiaki Tanaka ,  Satoshi Iguchi ,  Shunsuke Toshioka

    发明人： Shinya Hirota ,  Toshiaki Tanaka ,  Satoshi Iguchi ,  Shunsuke Toshioka

    IPC分类号： F01N300

    CPC分类号： B01D53/9454 ,  B01D53/949 ,  F01N3/0205 ,  F01N3/0835 ,  F01N3/0842 ,  F01N3/085 ,  F01N3/0871 ,  F01N3/0878 ,  F01N3/0885 ,  F01N3/2093 ,  F01N13/009 ,  F01N13/011 ,  F01N2240/16 ,  F01N2250/12 ,  F01N2560/026 ,  F01N2570/04 ,  Y02T10/22

    摘要： An exhaust emission control system of an internal combustion engine desorbs SOx by reversing a flow of an exhaust gas through an NOx storage-reduction catalyst, of which a structure is simplified as follows. A first exhaust pipe connected to an engine is connected to a first port of an emission switching valve having four ports. A second exhaust pipe 10, through which the exhaust gas is discharged into the atmospheric air, is connected to a second port, a third exhaust pipe connected to an inlet of a catalytic converter is connected to a third port. A fourth exhaust pipe connected to an outlet of the catalytic converter 30 is connected to a fourth port. When the emission switching valve is set in a forward flow position, the first exhaust pipe is connected to the third exhaust pipe, and the second exhaust pipe is connected to the fourth exhaust pipe, whereby the exhaust gas flows toward the outlet from the inlet within the catalytic converter. When the emission switching valve is set in a backward flow position, the first exhaust pipe is connected to the fourth exhaust pipe, and the second exhaust pipe is connected to the third exhaust pipe, whereby the exhaust gas flows toward the inlet from the outlet within the catalytic converter.

    摘要翻译： 内燃机的废气排放控制系统通过将废气流通过NOx吸留还原催化剂反转来解吸SOx，其结构简化如下。 连接到发动机的第一排气管连接到具有四个端口的排放切换阀的第一端口。 将废气排放到大气中的第二排气管10连接到第二端口，连接到催化转化器的入口的第三排气管连接到第三端口。 连接到催化转化器30的出口的第四排气管连接到第四端口。 当排放切换阀设置在正向流动位置时，第一排气管连接到第三排气管，第二排气管连接到第四排气管，由此排气从入口内的出口流动 催化转化器。 当排放切换阀设置在向后流动位置时，第一排气管连接到第四排气管，第二排气管连接到第三排气管，由此排气从出口内的入口流入 催化转化器。