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177 条记录 (耗时 0.043 秒)

    Semiconductor integrated circuit device
    14.
    发明申请
    Semiconductor integrated circuit device 失效

    公开(公告)号：US20060023520A1

    公开(公告)日：2006-02-02

    申请号：US11169800

    申请日：2005-06-30

    申请人： Ryo Mori ,  Toshio Yamada ,  Tetsuya Muraya

    发明人： Ryo Mori ,  Toshio Yamada ,  Tetsuya Muraya

    IPC分类号： G11C5/14

    CPC分类号： G11C11/412

    摘要： The present invention provides a semiconductor integrated circuit device having an SRAM in which leak current is reduced. In an SRAM comprising a plurality of memory cells each constructed by a storage in which input and output terminals of two inverter circuits are cross-connected and a selection MOSFET provided between the storage and complementary bit lines and whose gate is connected to a word line, a substrate bias switching circuit is provided. In normal operation, the substrate bias switching circuit supplies a power source voltage to an N-type well in which a P-channel MOSFET of a memory cell is formed and supplies a ground potential of the circuit to a P-type well in which an N-channel MOSFET is formed. In the standby state, the substrate bias switching circuit supplies a predetermined voltage which is lower than the power source voltage and by which a PN junction between the N-type well and the source of the P-channel MOSFET is not forward biased to the N-type well, and supplies a predetermined voltage which is higher than the ground potential and by which a PN junction between the P-type well and the source of the N-channel MOSFET is not forward biased to the P-type well.

    Timing signal generation circuit
    18.
    发明授权
    Timing signal generation circuit 失效

    公开(公告)号：US5892384A

    公开(公告)日：1999-04-06

    申请号：US658931

    申请日：1996-05-31

    申请人： Toshio Yamada ,  Masashi Agata

    发明人： Toshio Yamada ,  Masashi Agata

    IPC分类号： G11C7/00 ,  G06F1/04 ,  G06F1/06 ,  G06F1/10 ,  G11C11/407 ,  G11C11/4076 ,  H03K3/02 ,  H03K3/10 ,  H03K5/13 ,  H03K5/131 ,  H03K5/19 ,  H04L7/00 ,  H03H11/26

    CPC分类号： G06F1/04 ,  G06F1/10 ,  H03K5/131 ,  H03K5/133 ,  H03K5/135 ,  H03K2005/00052 ,  H03K2005/00286

    摘要： A timing signal generation circuit according to the present invention includes: a delay circuit for transmitting an input clock signal while delaying the clock signal, the delay circuit having a plurality of intermediate taps capable of outputting the clock signal at their corresponding positions in the delay circuit; a detection delay circuit for transmitting the clock signal while delaying the clock signal, the detection delay circuit having a plurality of intermediate taps capable of outputting the clock signal at their corresponding positions in the detection delay circuit; a plurality of sample/hold circuits each having a sampling signal terminal, the sampling signal terminals being connected to corresponding ones of the plurality of intermediate taps of the detection delay circuit; a plurality of boundary delay circuits for detecting an edge of the clock signal, the boundary detection circuits being connected to respective output terminals of the sample/hold circuits; and an output selection circuit for extracting the clock signal via at least one of the plurality of intermediate taps selected in accordance with an edge position of the clock signal detected by the boundary detection circuits, the output selection circuit outputting the extracted clock signal as a timing signal.

    Ceramic honeycomb catalytic converter
    19.
    发明授权
    Ceramic honeycomb catalytic converter 失效
    陶瓷蜂窝催化转化器

    公开(公告)号：US5866079A

    公开(公告)日：1999-02-02

    申请号：US298285

    申请日：1994-08-31

    申请人： Minoru Machida ,  Toshio Yamada ,  Toshihiko Hijikata ,  Yukihito Ichikawa

    发明人： Minoru Machida ,  Toshio Yamada ,  Toshihiko Hijikata ,  Yukihito Ichikawa

    IPC分类号： F01N3/28 ,  F02B1/04 ,  B01D53/34 ,  F01N3/10

    CPC分类号： F01N3/2853 ,  F01N3/2857 ,  F01N3/2867 ,  F01N2330/06 ,  F01N2450/02 ,  F02B1/04

    摘要： A ceramic honeycomb catalytic converter having a novel canning structure capable of stably retaining a thin-walled ceramic honeycomb catalyst within a metal casing for a long period. A retainer member in the form of a ceramic fiber mat is disposed between an inner peripheral surface of the casing and an outer peripheral surface of the honeycomb catalyst, in a compressed state to generate a surface pressure for retaining the honeycomb catalyst in place. The ceramic fiber mat is composed of heat resistant and non-intumescent ceramic fibers, and has a compression characteristic which is substantially free from a significant increase or decrease over an operative temperature range of the catalytic converter. The casing may be provided with at least one locking member for locking the ceramic fiber mat in a flow direction of exhaust gas passed through the honeycomb catalyst.

    摘要翻译： 一种陶瓷蜂窝催化转化器，其具有能够长时间稳定地将金属壳体内的薄壁陶瓷蜂窝催化剂保持在壳体上的新颖的罐装结构。 陶瓷纤维毡形式的保持构件以压缩状态设置在壳体的内周表面和蜂窝状催化剂的外周表面之间，以产生用于将蜂窝状催化剂保持在适当位置的表面压力。 陶瓷纤维垫由耐热和非膨胀陶瓷纤维组成，具有在催化转化器的工作温度范围内基本上不显着增加或减少的压缩特性。 壳体可以设置有至少一个锁定构件，用于沿着通过蜂窝催化剂的废气的流动方向来锁定陶瓷纤维垫。