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    • 51. 发明授权
    • Valve core
    • 阀芯
    • US06637726B1
    • 2003-10-28
    • US10339976
    • 2003-01-10
    • Masahiko Yamamoto
    • Masahiko Yamamoto
    • F16K146
    • F16K1/46
    • A valve core includes a generally cylindrical core body fixed in a core mounting hole formed in a counterpart member, the core body having an open end, a moving shaft extending through the core body so as to be directly driven, the shaft having an end, a pair of flanges formed on the end of the shaft, a generally annular sealing member held between the flanges so as to adhere closely to an inner circumferential edge of the open end of the core body or an inner circumferential face of the core mounting hole to close the core mounting hole, and a pair of engagement portions formed in either flange and the sealing member so as to be brought into a concavo-convex engagement with each other to limit deformation of the sealing member causing an increase in its diameter.
    • 阀芯包括固定在形成在对应构件中的芯安装孔中的大体上圆柱形的芯体,芯体具有开口端,移动轴延伸穿过芯体直接驱动,轴具有端部, 形成在轴的端部上的一对凸缘,保持在凸缘之间的大致环形的密封构件,以便紧密地粘附到芯体的开口端的内周边缘或者芯安装孔的内周面, 封闭芯安装孔,以及形成在凸缘和密封构件中的一对接合部,以便彼此成为凹凸接合,以限制密封构件的变形,导致其直径增加。
    • 54. 发明授权
    • Method and apparatus for molding bent pipes made up of composite material
    • 由复合材料制成弯管的方法和装置
    • US4483670A
    • 1984-11-20
    • US422560
    • 1982-09-24
    • Masahiko YamamotoYoshinori NishinoAkio KomuraTomio Ebisu
    • Masahiko YamamotoYoshinori NishinoAkio KomuraTomio Ebisu
    • B29C33/50B29C43/12B29C5/04
    • B29C33/50B29C43/12B29L2023/004
    • A method and apparatus for manufacturing bent pipes of a composite material composed of resin and filling materials such as reinforcing materials and aggregates by employing a cylindrical molding tool which is deformable between straight-axis form and bent-axis form. Materials are supplied into the molding tool held in horizontally straight condition while the tool is rotated about a horizontal axis, and are molded into a pipe by centrifugal molding. Rotation of the tool is stopped when the pipe molded therein is in uncured state, then the tool is subjected to bending. The resulting bent pipe is removed after it is cured. Before the tool is bent, a bag made of a flexible sheet material is inserted into the pipe and inflated to straighten out the inner periphery of the pipe so as to protect the pipe from any possibility of deformation during bending operation. The molding tool is preferably made of such resilient material as rubber, is incased in a peripherally divisible frame or bellows-type flexible frame which, in turn, is suitably incased in a rotary frame. More preferably, the molding tool has a hollow space provided between its inner and outer walls; by filling liquid in the hollow space it is possible to achieve fine roundness in pipe molding irrespective of dimensional errors with the molding tool or frame.
    • 一种用于制造由树脂和填充材料如增强材料和骨料组成的复合材料的弯曲管的方法和装置,该方法和装置采用可在直轴形和弯轴形之间变形的圆柱形模具。 当工具围绕水平轴旋转时,将材料供给到水平直线状态的模具中,并通过离心模塑成型为管。 当模制在其中的管子处于未固化状态时,工具的旋转停止,然后该工具受到弯曲。 所得到的弯管在固化后被去除。 在工具弯曲之前,将由柔性片材制成的袋子插入管中并充气以使管道的内周伸直,以便在弯曲操作期间保护管道不发生变形的可能性。 模制工具优选地由诸如橡胶的弹性材料制成,被包围在可外围可分割的框架或波纹管型柔性框架中,该框架或波纹管型柔性框架进而适当地在旋转框架中被覆盖。 更优选地,模制工具具有设置在其内壁和外壁之间的中空空间; 通过在中空空间中填充液体,可以实现管模中的细圆度,而与成型工具或框架的尺寸误差无关。
    • 56. 发明申请
    • TRANSMITTER, RF TRANSMITTER SIGNAL PROCESSOR AND METHOD FOR OPERATION OF TRANSMITTER
    • 发射机,射频发射机信号处理器和发射机的操作方法
    • US20120157016A1
    • 2012-06-21
    • US13404530
    • 2012-02-24
    • Hiroaki MATSUIYasuo SHIMAYasuyuki KIMURAMasahiko YAMAMOTO
    • Hiroaki MATSUIYasuo SHIMAYasuyuki KIMURAMasahiko YAMAMOTO
    • H04B1/02
    • H04W52/52H03G3/3047H04L27/361
    • An internal operation of RF IC is adjusted so that the level of an RF transmitter signal is substantially stopped from rising, or made to descend in course of ramp-up of the RF transmitter signal. This adjustment is enabled by ramp-up adjustment data Last 4 symbols contained in preamble data precedent to real transmission data transmitted after completion of ramp-up. The ramp-up adjustment data and real transmission data are supplied from a baseband LSI. The RF transmitter signal contains phase and amplitude modulation components according to the EDGE system. RF IC includes phase and amplitude modulation control loops PM LP and AM LP. Ramp-up of RF power amplifiers PA1 and PA2 is performed by controlling the gain of the first variable amplifier MVGA included in the AM LP according to ramp information. Thus, unwanted radiation's level is reduced during ramp-up of the RF transmitter signal of the RF power amplifiers.
    • 调整RF IC的内部操作,使得RF发射器信号的电平基本上停止上升,或者在RF发射器信号的上升过程中下降。 该调整通过斜坡调整数据启用,最后4个符号包含在完成斜坡后发送的实际传输数据的前导数据先例中。 从基带LSI提供斜升调整数据和实际发送数据。 RF发射机信号包含根据EDGE系统的相位和幅度调制分量。 RF IC包括相位和幅度调制控制环路PM LP和AM LP。 通过根据斜坡信息控制AM LP中包括的第一可变放大器MVGA的增益来执行RF功率放大器PA1和PA2的上升。 因此,在RF功率放大器的RF发射器信号的斜坡上升期间,有害辐射的电平被降低。
    • 57. 发明申请
    • STEP-UP DC/DC SWITCHING CONVERTER AND SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE
    • 升压型DC / DC开关转换器和半导体集成电路器件
    • US20100301824A1
    • 2010-12-02
    • US12786263
    • 2010-05-24
    • Masahiko YAMAMOTOTakao Okazaki
    • Masahiko YAMAMOTOTakao Okazaki
    • G05F1/46
    • H02M3/156
    • A step-up DC/DC converter having a step-up circuit which can performs a stable control without depending on a logic threshold of a semiconductor switching device and a semiconductor integrated circuit device having the step-up DC/DC converter are provided. The step-up DC/DC converter includes: a control logic which generates a driving voltage to be supplied to a semiconductor switching device; a power supply circuit which steps-up a battery voltage to perform a level shift of the driving voltage output by the control logic; and an amplifier operated with using a voltage generated by the semiconductor switching device as a power supply. Since the level-shifted semiconductor switching device control signal is higher than a logic threshold voltage of the semiconductor switching device, the ON/OFF of the semiconductor switching device can be controlled.
    • 提供了一种具有升压电路的升压DC / DC转换器,其可以执行稳定的控制而不依赖于半导体开关器件的逻辑阈值和具有升压型DC / DC转换器的半导体集成电路器件。 升压DC / DC转换器包括:产生要提供给半导体开关器件的驱动电压的控制逻辑; 电源电路,其升高电池电压,以执行由所述控制逻辑输出的驱动电压的电平偏移; 以及使用由半导体开关器件产生的电压作为电源进行工作的放大器。 由于电平移位半导体开关器件控制信号高于半导体开关器件的逻辑阈值电压,因此可以控制半导体开关器件的导通/截止。