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    • 61. 发明授权
    • Logical delaying/advancing circuit used
    • 使用逻辑延迟/提前电路
    • US6049240A
    • 2000-04-11
    • US49619
    • 1998-03-27
    • Kazuo Kato
    • Kazuo Kato
    • G04G3/04G04G3/02H03L1/02H03H11/26
    • G04G3/022
    • An oscillating means having an oscillator outputs a reference clock, and a frequency-dividing means sequentially frequency-dividing the reference clock into a half frequency. A temperature correction data creating means detects a temperature, calculates logical delaying/advancing data for a temperature change, and outputs the logical delaying/advancing data in every predetermined period. A temperature correction data input means receives the delaying/advancing data outputted by the temperature correction data creating means and outputs the logical delaying/advancing data to a logical delaying/advancing means. The logical delaying/advancing means operates a state of the frequency-dividing means in every predetermined period on the basis of the set logical delaying/advancing data to control the period of the frequency-divided output signal of the frequency-dividing means so as to be coincident with a desired period. Owing to this temperature correction data input means, it becomes possible to separate the temperature correction data creating means conventionally incorporated.
    • 具有振荡器的振荡装置输出参考时钟,并且分频装置将参考时钟顺序地分频为半频。 温度校正数据产生装置检测温度,计算温度变化的逻辑延迟/前进数据,并且在每个预定周期中输出逻辑延迟/前进数据。 温度校正数据输入装置接收由温度校正数据产生装置输出的延迟/前进数据,并将逻辑延迟/前进数据输出到逻辑延迟/前进装置。 逻辑延迟/提前装置根据设定的逻辑延迟/前进数据在每个预定周期内操作分频装置的状态,以控制分频装置的分频输出信号的周期,以便 与期望的时期相符。 由于该温度校正数据输入装置,可以分离通常结合的温度校正数据生成装置。
    • 63. 发明授权
    • Ultrasonic motor and driving for the ultrasonic motor
    • 超声波电机和超声波电机的驱动装置
    • US5631517A
    • 1997-05-20
    • US439062
    • 1995-05-08
    • Kazuo KatoTakashi SaseKikuo TomitaShuzo OshimaMuneo ChibaTomohiko DoukenKazuyoshi Takizawa
    • Kazuo KatoTakashi SaseKikuo TomitaShuzo OshimaMuneo ChibaTomohiko DoukenKazuyoshi Takizawa
    • H01L41/04H01L41/09H02N2/16H01L41/08
    • H02N2/105H02N2/147
    • An electrostrictive revolution type ultrasonic motor includes a piezoelectric ceramic disk shaped stator and a rotor. The piezoelectric ceramic disk shaped stator has an eccentric movement via excitation by two phase pulse like voltage. The rotor is fitted around the circumference of the stator and is transmitted by a rotating torque due to the eccentric movement via frictional contact therebetween. The rotor is formed of a plastic material by injection molding to achieve a reduction of a size variation of the rotor and a stable contact with the stator. A high and stable rotating torque is thereby obtained with a reduced production cost. Further, a driving device for the ultrasonic motor which varies the frequency of a voltage applied to the ultrasonic motor in a stepped manner discriminates the magnitude of the corresponding motor currents and drives the ultrasonic motor with the frequency which causes the maximum motor current. In this manner, a simple structured and low cost driving device which operates at a high speed and at a high resolution with a high efficiency is achieved.
    • 电致伸缩型超声波马达包括压电陶瓷盘形定子和转子。 压电陶瓷盘形定子通过两相相位脉冲(如电压)经由激励而具有偏心运动。 转子安装在定子的周围,并由于偏心运动通过其间的摩擦接触而由旋转转矩传递。 转子由塑料材料通过注射成型形成,以实现转子尺寸变化的减小和与定子的稳定接触。 由此可以降低制造成本而获得高稳定的转矩。 此外,用于以阶梯式方式改变施加到超声波马达的电压的频率的超声波马达的驱动装置识别相应电动机电流的大小,并以引起最大电动机电流的频率驱动超声波电动机。 以这种方式,实现了以高速和高分辨率高效率地操作的简单的结构化和低成本的驱动装置。
    • 69. 发明授权
    • Thermotherapy apparatus
    • 热疗仪
    • US5224492A
    • 1993-07-06
    • US713358
    • 1991-06-11
    • Noriyuki TakahashiTamaki SakamotoJun ShimoyamaEiji KasaiMakoto SaitoJin-ichi MatsudaKazuo Kato
    • Noriyuki TakahashiTamaki SakamotoJun ShimoyamaEiji KasaiMakoto SaitoJin-ichi MatsudaKazuo Kato
    • A61B5/00A61N1/08A61N1/40
    • A61B5/417A61B5/015A61N1/08A61N1/403
    • In a CT image of a living body, contours of internal organs thereof are discriminated. Parameters are beforehand stored in a memory for a plurality of internal organs of the living body. Applicators are attached onto the living body and then a high frequency power is applied to electrodes disposed therein so as to heat an internal portion of the body. Based on an intensity of an electric field generated in the body due to the applied power and the parameters stored in the memory, a temperature distribution on the CT image is estimated. To retain an estimated temperature of an objective tumor at a predetermined target temperature, the high frequency power and the cooling water in the applicators are controlled. In the estimation of the temperature distribution, the parameters of the living body are repeatedly corrected to minimize a discrepancy between a temperature measured at a preset position and an estimated temperature associated therewith.
    • 在活体的CT图像中,鉴别其内脏的轮廓。 参数预先存储在生物体的多个内部器官的存储器中。 施加器附着在活体上,然后将高频电力施加到设置在其中的电极,以加热身体的内部。 基于由于所施加的功率和存储在存储器中的参数而在体内产生的电场的强度,估计CT图像上的温度分布。 为了将目标肿瘤的估计温度保持在预定目标温度,控制施加器中的高频功率和冷却​​水。 在估计温度分布时,重复校正生物体的参数,以使在预设位置测量的温度与与其相关联的估计温度之间的差异最小化。