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    • 92. 发明授权
    • Polymer electrolyte fuel cell
    • 聚合物电解质燃料电池
    • US07901836B2
    • 2011-03-08
    • US11791679
    • 2005-11-01
    • Atsushi OhmaShinji Yamamoto
    • Atsushi OhmaShinji Yamamoto
    • H01M4/02
    • H01M4/92H01M4/8835H01M4/921H01M4/926H01M8/04223H01M8/1004H01M8/241H01M8/2457
    • For a combination of a solid polymer electrolyte membrane 107, catalytic layers 111 and 113 disposed on both sides of the solid polymer electrolyte membrane 107, gas diffusion layers 112 and 114 disposed outside the catalytic layers 111 and 113, and separators 103 and 104 disposed outside the gas diffusion layers 112 and 114, the catalytic layer 113 to be cathode-sided includes a carbon carrier 117 composed of carbon having a mean lattice plane spacing d002 of [002] planes calculated from an X-ray diffraction within a range of 0.343 nm to 0.358 nm, a crystallite size Lc within a range of 3 nm to 10 nm, and a specific surface area within a range of 200 m2/g to 300 m2/g, catalyst particles 115 containing platinum supported on the carbon carrier 117, and an electrolyte 116. According to the invention, a polymer electrolyte fuel cell is allowed to prevent a corroding deterioration of carbon carriers in the cathode catalytic layer in start and stop of the fuel cell, allowing for an enhanced stable output over a long term.
    • 对于固体高分子电解质膜107,设置在固体高分子电解质膜107两侧的催化剂层111和113,设置在催化剂层111和113外部的气体扩散层112和114以及设置在外部的隔板103和104的组合 气体扩散层112和114,作为阴极侧的催化剂层113包括碳载体117,其由具有由0.333nm范围内的X射线衍射计算出的[002]面的平均晶格面间距d002的碳构成 至0.358nm,在3nm至10nm的范围内的微晶尺寸Lc,200m 2 / g至300m 2 / g范围内的比表面积,载于碳载体117上的载有铂的催化剂颗粒115,以及 电解质116.根据本发明,允许聚合物电解质燃料电池防止燃料电池开始和停止时阴极催化剂层中碳载体的腐蚀变坏,从而增强 长期稳定的产量。
    • 99. 发明授权
    • Control apparatus for vibration type actuator and control method thereof
    • 振动式致动器的控制装置及其控制方法
    • US07183691B2
    • 2007-02-27
    • US10940719
    • 2004-09-15
    • Shinji Yamamoto
    • Shinji Yamamoto
    • H01L41/08
    • H02N2/142H02N2/163
    • There are provided a control apparatus for a vibration type actuator and a control method thereof, which are capable of efficiently driving the vibration type actuator regardless of changes in characteristic of the vibration type actuator, in load, and in characteristic of a circuit for generating a periodic signal, thereby minimizing power consumption. The control method includes the steps of detecting a vibration state of an elastic member in the actuator, detecting a phase difference between the periodic signal applied to the actuator or a signal for generating the periodic signal and a detection signal indicating the vibration state, and controlling the frequency and voltage of the periodic signal. The controlling step includes controlling the voltage of the periodic signal based on the detected phase difference.
    • 提供了一种用于振动型致动器的控制装置及其控制方法,其能够有效地驱动振动型致动器,而不管振动型致动器的特性在负载中的变化,以及用于产生振动型致动器的电路的特性 周期性信号,从而最小化功耗。 控制方法包括以下步骤:检测致动器中的弹性构件的振动状态,检测施加到致动器的周期信号之间的相位差或产生周期信号的信号以及指示振动状态的检测信号,以及控制 周期信号的频率和电压。 控制步骤包括基于检测到的相位差来控制周期信号的电压。