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公开(公告)号：US4685767A
公开(公告)日：1987-08-11
申请号：US703998
申请日：1985-02-21
申请人： Nozomu Ueshiba , Tetsuji Fukada , Yukihiko Ise
发明人： Nozomu Ueshiba , Tetsuji Fukada , Yukihiko Ise
CPC分类号： G02B7/04 , G02B7/1821
摘要： A fine adjustment apparatus for an optical system lens includes an annular laminated piezoelectric vibrator. The lens is attached to the inner peripheral portion of the piezoelectric vibrator. The piezoelectric vibrator is firmly supported at its outer peripheral portion by a proper member. The piezoelectric vibrator is deflected by the application of a voltage, whereby the lens is finely displaced in the optical axis direction thereof. The piezoelectric vibrator may be formed by laminating two annular piezoelectric elements with an annular metal plate sandwiched therebetween. Each of the piezoelectric elements has the axis of polarization extending in the thicknesswise direction thereof. The metal plate has a thickness which does not exceed at least 25% of the total thickness of the two piezoelectric elements.
摘要翻译： 一种用于光学系统透镜的微调装置包括环形层压压电振动器。 该透镜附接到压电振动器的内周部。 压电振动器通过适当的构件在其外周部分牢固地支撑。 压电振子通过施加电压而偏转，从而使透镜在其光轴方向上精细位移。 压电振动器可以通过层压两个环形压电元件和夹在其间的环形金属板来形成。 每个压电元件具有在其厚度方向上延伸的偏振轴。 金属板的厚度不超过两个压电元件的总厚度的至少25％。
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公开(公告)号：US5003824A
公开(公告)日：1991-04-02
申请号：US456372
申请日：1989-12-26
申请人： Tetsuji Fukada , Masayuki Wakamiya , Kikuo Kainou
发明人： Tetsuji Fukada , Masayuki Wakamiya , Kikuo Kainou
CPC分类号： G01H11/08 , G01P15/0922 , G01N2291/02827 , Y10S73/04
摘要： A vibration/acceleration sensor is provided which includes a basic sensor unit fixed to a casing adapted to be mounted on a body the vibrations of which are to be detected. The sensor unit is surrounded by a resinous material having a low heat transfer coefficient. The sensor unit includes a vibration detecting unit including a piezoelectric bending vibrator, thin plates each formed of, for example, a resinous material having a low heat transfer coefficient, provided respectively on the upper and lower surfaces of the vibration detecting unit, and a signal processing circuit formed on the upper thin plate.
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3.发明授权
公开(公告)号：US4853579A
公开(公告)日：1989-08-01
申请号：US089334
申请日：1987-08-25
申请人： Osamu Kawasaki , Katsu Takeda , Ritsuo Inaba , Tetsuji Fukada
发明人： Osamu Kawasaki , Katsu Takeda , Ritsuo Inaba , Tetsuji Fukada
摘要： A method of driving an ultrasonic motor having a rotation body (6) which is rotated by travelling waves generated in a vibrator body (3), whereby the drive frequency of the motor is controlled in accordance with the value of an operating parameter such as phase difference between drive current and voltage, such as to maintain the drive frequency at a value which is lower than the antiresonance frequency of the vibrator body (3) and higher than a highest resonance frequency of the vibrator body (3) in a hysteresis loop exhibited by a resonance frequency characteristic of the vibrator body (3). Continuous stable operation is attained, irrespective of the effects of temperature and load changes upon the motor operating characteristics.
摘要翻译： 一种驱动超声波马达的方法，所述超声波马达具有旋转体（6），所述旋转体（6）由在振动体（3）中产生的行波旋转，由此根据诸如相位的运行参数的值来控制马达的驱动频率 驱动电流和电压之间的差异，例如将驱动频率保持在低于振动体（3）的反共振频率并且高于振动体（3）在磁滞回线中的最高共振频率的值 通过振动体（3）的共振频率特性。 无论温度和负载变化对电动机工作特性的影响如何，均可实现连续的稳定运行。
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公开(公告)号：US20070143700A1
公开(公告)日：2007-06-21
申请号：US10577147
申请日：2004-10-28
申请人： Tetsuji Fukada
发明人： Tetsuji Fukada
CPC分类号： G06F21/6209 , G06F21/84
摘要： The present invention aims to provide an electronic document viewing system meeting the convenience of users, while ensuring the security of electronic documents. A viewing apparatus has an acquiring unit for receiving a first layer and a second layer from a creating apparatus. The first layer contains a document laid out therein, and the second layer is defined to cover at least part of the first layer. The viewing apparatus also has a control unit for setting a display mode of the second layer, and a display unit for displaying the electronic document file in accordance with the display mode set by the control unit.
摘要翻译： 本发明旨在提供一种满足用户便利性的电子文档查看系统，同时确保电子文档的安全性。 观察装置具有用于从创建装置接收第一层和第二层的获取单元。 第一层包含布置在其中的文件，并且第二层被限定为覆盖第一层的至少一部分。 观看装置还具有用于设置第二层的显示模式的控制单元和用于根据由控制单元设置的显示模式来显示电子文档文件的显示单元。
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公开(公告)号：US4295172A
公开(公告)日：1981-10-13
申请号：US92375
申请日：1979-11-08
申请人： Tetsuji Fukada , Yukihiko Ise
发明人： Tetsuji Fukada , Yukihiko Ise
摘要： A rotary magnetic head apparatus having a bending mode vibrator or vibrators mounted on a rotary cylinder, the vibrator comprising either ring shape piezoelectric vibrators bonded together with their polarization axes aligned in the direction of the thickness or the bonded piezoelectric vibrators bisected along a diameter of the ring, the bending vibrator mounting thereon a magnetic head or heads.
摘要翻译： 一种具有安装在旋转圆筒上的弯曲模式振动器或振动器的旋转磁头装置，所述振动器包括将其偏振轴在厚度方向上对齐的环形压电振动器或沿着所述厚度方向平分的键合的压电振动器 弯曲振动器安装在磁头或磁头上。
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