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    • 52. 再颁专利
    • Semiconductor device
    • 半导体器件
    • USRE38907E1
    • 2005-12-06
    • US10452203
    • 2003-06-02
    • Tomoko MatsudaiTsutomu KojimaAkio Nakagawa
    • Tomoko MatsudaiTsutomu KojimaAkio Nakagawa
    • H03K5/22H03K5/24H03K17/082H03K17/10H03K17/14
    • H03K17/102H03K5/2481H03K17/0828H03K17/145
    • The differential amplifier of a comparator circuit includes first and second n-type MOSFETs for receiving an input signal, first and second p-type MOSFETs of a current mirror circuit, and a third n-type MOSFET of a current source circuit. The output stage includes a third p-type MOSFET for transmitting a signal, and a fourth n-type MOSFET of the current source circuit. The differential amplifier further includes fifth and sixth n-type MOSFETs respectively series-connected to the first and second n-type MOSFETs. The output stage further includes a seventh n-type MOSFET series-connected to the fourth n-type MOSFET. The gates of the fifth, sixth, and seventh n-type MOSFETs are connected to voltage bias circuits. The fifth, sixth, and seventh n-type MOSFETs suppress variations in voltage at an output node caused by poor saturation characteristics of the first, second, and fourth main n-type MOSFETs.
    • 比较器电路的差分放大器包括用于接收输入信号的第一和第二n型MOSFET,电流镜电路的第一和第二p型MOSFET以及电流源电路的第三n型MOSFET。 输出级包括用于传输信号的第三p型MOSFET和电流源电路的第四n型MOSFET。 差分放大器还包括分别串联连接到第一和第二n型MOSFET的第五和第六n型MOSFET。 输出级还包括与第四n型MOSFET串联连接的第七n型MOSFET。 第五,第六和第七n型MOSFET的栅极连接到电压偏置电路。 第五,第六和第七n型MOSFET抑制由于第一,第二和第四主n型MOSFET的饱和特性不良引起的输出节点的电压变化。
    • 54. 发明授权
    • High voltage semiconductor device having two buffer layer
    • 具有两个缓冲层的高电压半导体器件
    • US06683343B2
    • 2004-01-27
    • US10084051
    • 2002-02-28
    • Tomoko MatsudaiAkio Nakagawa
    • Tomoko MatsudaiAkio Nakagawa
    • H01L2976
    • H01L29/66333H01L29/66348H01L29/7397
    • In an IGBT, an n buffer layer is formed under an n− high resistance layer in which a MOS gate structure is formed. An n+ buffer layer is formed between the n buffer layer and a p+ drain layer. Since the p+ drain layer is doped at a low dose, the efficiency of carrier injection can be reduced and a high-speed operation is possible without lifetime control. Since no lifetime control is performed, the on-state voltage can be low. Since the n buffer layer does not immediately stop the extension of the depletion layer during a turn-off period, oscillation of the current and voltage is prevented. The n+ buffer layer maintains a sufficient withstand voltage when a reverse bias is applied.
    • 在IGBT中,n型缓冲层形成在形成有MOS栅极结构的n +高电阻层的下方。 在n缓冲层和p +漏极层之间形成n + +缓冲层。 由于p +漏极层以低剂量掺杂,所以可以降低载流子注入的效率,并且可以在没有寿命的情况下进行高速操作。 由于不进行寿命控制,因此导通电压可以低。 由于n缓冲层在关断期间不会立即停止耗尽层的延伸,所以防止了电流和电压的振荡。 当施加反向偏压时,n + +缓冲层保持足够的耐受电压。
    • 58. 发明授权
    • Teaching playback swing-phase-controlled above knee prosthesis
    • 教学回放摆动相位控制在膝关节假体以上
    • US5443524A
    • 1995-08-22
    • US73418
    • 1993-06-09
    • Seishi SawamuraSakuya NakajimaKunio AmemoriHidehisa OkuAkio NakagawaIchiro KitayamaMikio YukiShiro HoriguchiYoshihisa ArakiShigeru YukiToshihiro Hamada
    • Seishi SawamuraSakuya NakajimaKunio AmemoriHidehisa OkuAkio NakagawaIchiro KitayamaMikio YukiShiro HoriguchiYoshihisa ArakiShigeru YukiToshihiro Hamada
    • A61F2/64A61F2/68A61F2/70A61F2/72A61F2/74
    • A61F2/68A61F2/64A61F2/70A61F2002/705A61F2002/747
    • The present invention is intended to provide a teaching playback swing-phase-controlled above knee prosthesis which enables an external data setting to set the mechanism of the teaching playback swing-phase-controlled above knee prosthesis for conditions that enable the mechanism to operate for motions according to a walking speed. The teaching playback swing-phase-controlled above knee prosthesis includes a structural body having a thigh frame and a leg frame pivotally joined to the thigh frame for swing motion relative to the thigh frame, an air cylinder having a cylinder body, a piston axially slidably fitted in the cylinder body and provided with a valve, and a piston rod having one end fixed to the piston and the other end pivotally joined to the thigh frame, and a stepping motor for adjusting the opening of the valve of the cylinder. The opening of the valve of the cylinder is adjusted by the stepping motor to regulate sliding speed of the piston by adjusting the resistance against the flow of air through the valve so that the leg frame is able to swing relative to the thigh frame properly according to a predetermined walking speed. Data concerning the opening of the valve is taught to the teaching playback swing-phase-controlled above knee prosthesis by signals sent out by an external data setting device.
    • 本发明旨在提供一种教学重放摆动相位控制的膝关节假体,其使得外部数据设置能够将使得该机构能够运动的条件的条件设定在膝关节假体上方的摆动相位控制的回放机构 根据步行速度。 在膝关节假体上方的回放摆动相控制的教学回放包括具有大腿框架和枢转地连接到大腿框架以相对于大腿框架摆动的腿架的结构体,气缸,具有缸体,活塞可轴​​向滑动 安装在缸体中并设置有阀,以及活塞杆,其一端固定到活塞,另一端枢转地连接到大腿架;以及步进电机,用于调节气缸的阀的开度。 通过步进电机调节气缸阀门的开度,通过调节抵抗通过阀门的空气流动的阻力来调节活塞的滑动速度,使得腿架能够相对于大腿架适当地摆动,根据 预定行走速度。 通过由外部数据设定装置发出的信号,教导了关于阀的打开的数据。