公开(公告)号：US5770912A

公开(公告)日：1998-06-23

申请号：US611637

申请日：1996-03-06

申请人： Kenji Suzuki ,  Masao Kasuga ,  Makoto Suzuki ,  Akihiro Iino

发明人： Kenji Suzuki ,  Masao Kasuga ,  Makoto Suzuki ,  Akihiro Iino

IPC分类号： H02N2/00 ,  H01L41/04 ,  H02N2/14

CPC分类号： H02N2/14 ,  H02N2/142 ,  H02N2/166

摘要： An ultrasonic motor comprises a piezoelectric element having first and second surfaces, a plurality of electrode patterns disposed on the first surface of the piezoelectric element, first and second circuits for short-circuiting every other one of the electrode patterns to form two electrode pattern groups, a vibrating member disposed on the second surface of and electrically connected to the piezoelectric element, a moving member movably disposed on the vibrating member, a pressure-regulating member for urging the moving member into pressure contact with the vibrating member, and an oscillation drive circuit having at least two power amplifiers and a pre-amplifier. Each of the power amplifiers has an output terminal connected to one of the electrode pattern groups. The pre-amplifier has an input terminal and an output terminal, the input terminal being connected to one of the first and second surfaces of the piezoelectric element, and the output terminal being connected to input terminals of the at least two power amplifiers.

摘要翻译： 超声波马达包括具有第一和第二表面的压电元件，设置在压电元件的第一表面上的多个电极图案，用于使每隔一个电极图案短路以形成两个电极图案组的第一和第二电路， 设置在压电元件的第二表面上并电连接的振动元件，可移动地设置在振动元件上的移动元件，用于推动移动元件与振动元件压力接触的压力调节元件，以及振荡驱动电路 具有至少两个功率放大器和前置放大器。 每个功率放大器具有连接到电极图案组之一的输出端子。 前置放大器具有输入端子和输出端子，输入端子连接到压电元件的第一和第二表面之一，输出端子连接到至少两个功率放大器的输入端子。

公开(公告)号：US06771848B2

公开(公告)日：2004-08-03

申请号：US09951155

申请日：2001-09-13

申请人： Takashi Yamanaka ,  Masao Kasuga ,  Akihiro Iino ,  Kenji Suzuki ,  Tomohiro Shimada

发明人： Takashi Yamanaka ,  Masao Kasuga ,  Akihiro Iino ,  Kenji Suzuki ,  Tomohiro Shimada

IPC分类号： G02B626

CPC分类号： G02B6/3514 ,  G02B6/3546 ,  G02B6/3578 ,  G02B6/358

摘要： An optical switch has an input section for inputting a light beam and movable optical members each comprised of a piezoelectric actuator for inputting the light beam from the input section and for individually switching an optical path of the light beam. Each of the piezoelectric actuators has a piezoelectric body for undergoing oscillating movement and a movable body frictionally driven by oscillating movement of the piezoelectric body. A driving control device drives the piezoelectric bodies of the piezoelectric actuators and controls positions of the piezoelectric bodies to switch the optical path of the light beam. An output section outputs the light beam from the piezoelectric actuators.

摘要翻译： 光开关具有用于输入光束的输入部分和可移动的光学部件，每个光学部件包括用于输入来自输入部分的光束的压电致动器，并且用于单独地切换光束的光路。 每个压电致动器具有用于进行振荡运动的压电体和通过压电体的振荡运动而摩擦驱动的可动体。 驱动控制装置驱动压电致动器的压电体并控制压电体的位置以切换光束的光路。 输出部分输出来自压电致动器的光束。

公开(公告)号：US06396194B1

公开(公告)日：2002-05-28

申请号：US09177455

申请日：1998-10-22

申请人： Akihiro Iino ,  Masao Kasuga ,  Makoto Suzuki ,  Kenji Suzuki

发明人： Akihiro Iino ,  Masao Kasuga ,  Makoto Suzuki ,  Kenji Suzuki

IPC分类号： H01L4104

CPC分类号： H01L41/0906

摘要： An ultrasonic motor has a vibrating body polarized in a given direction. The vibrating body comprises a first piezoelectric body and a second piezoelectric body laminated to the first piezoelectric body in a preselected direction generally parallel to the polarized direction. Each of the first piezoelectric body and the second piezoelectric body has a first polarized portion and a second polarized portion. The first polarized portion of the first piezoelectric body is aligned in the preselected direction with the second polarized portion of the second piezoelectric body. The second polarized portion of the first piezoelectric body is aligned in the preselected direction with the first polarized portion of the second piezoelectric body. A movable member is frictionally driven by a combination of a stretching vibration and a bending vibration generated by applying a driving signal to the first polarized portions of the first and second piezoelectric bodies or to the second polarized portions of the first and second piezoelectric bodies.

摘要翻译： 超声波马达具有沿给定方向偏振的振动体。 振动体包括第一压电体和第二压电体，该第一压电体和第二压电体沿大致平行于偏振方向的预选方向层叠到第一压电体上。 第一压电体和第二压电体各自具有第一偏振部和第二偏振部。 第一压电体的第一极化部分在预选方向上与第二压电体的第二极化部对准。 第一压电体的第二极化部分在预选方向上与第二压电体的第一极化部对准。 通过将驱动信号施加到第一和第二压电体的第一偏振部分或第一和第二压电体的第二偏振部分而产生的拉伸振动和弯曲振动的组合来摩擦地驱动可动部件。

公开(公告)号：US06359369B1

公开(公告)日：2002-03-19

申请号：US09535374

申请日：2000-03-24

申请人： Akihiro Iino ,  Kenji Suzuki ,  Masao Kasuga

发明人： Akihiro Iino ,  Kenji Suzuki ,  Masao Kasuga

IPC分类号： H02N200

CPC分类号： H02N2/004 ,  H02N2/0015 ,  H02N2/008 ,  H02N2/103

摘要： An ultrasonic motor is provided that is improved in reliability of a self-oscillator circuit constituted by the ultrasonic motor itself and high in efficiency. In a case of driving with one standing wave, the resonant point of a vibration mode used for driving is made lower than a resonant point of another vibration mode that is same in form as this vibration mode but different in node position. Furthermore, oscillation is caused between two resonant points. Where using two standing waves, oscillation is caused at a higher frequency than any of the two resonant points.

摘要翻译： 提供了一种超声波马达，其提高了由超声波马达本身构成的自振荡电路的可靠性并且效率高。 在使用一个驻波的情况下，将用于驱动的​​振动模式的谐振点设定为低于与该振动模式形式相同但节点位置不同的另一种振动模式的共振点。 此外，在两个谐振点之间产生振荡。 在使用两个驻波的情况下，以比两个谐振点中的任一个高的频率产生振荡。

公开(公告)号：US6104124A

公开(公告)日：2000-08-15

申请号：US127098

申请日：1998-07-31

申请人： Kenji Suzuki ,  Akihiro Iino ,  Masao Kasuga ,  Makoto Suzuki ,  Takashi Yamanaka

发明人： Kenji Suzuki ,  Akihiro Iino ,  Masao Kasuga ,  Makoto Suzuki ,  Takashi Yamanaka

IPC分类号： G04C3/12 ,  H01L41/09 ,  H02N2/00 ,  H02N2/16 ,  H01L41/08

CPC分类号： H02N2/166

摘要： An ultrasonic motor has a piezoelectric element driven by application of a voltage thereto to undergo expansion and contraction. A vibrating body is vibrationally driven by the expansion and contraction movement of the piezoelectric element to thereby produce standing waves. A moving body is frictionally driven by the standing waves of the vibrating body. Power transmission projections apply a frictional force to the moving body to thereby frictionally drive the moving body in accordance with the standing waves. The power transmission projections are disposed only every preselected number of wavelengths at intermediate positions between loops and nodes of the standing waves, the preselected number being a natural number.

摘要翻译： 超声波马达具有通过施加电压而被驱动以进行膨胀和收缩的压电元件。 振动体由压电元件的膨胀和收缩运动振动驱动，从而产生驻波。 移动体被振动体的驻波摩擦地驱动。 动力传递突起对移动体施加摩擦力，从而根据驻波摩擦地驱动移动体。 功率传输突起仅在驻波的环路和节点之间的中间位置处布置每个预选数量的波长，预选数量是自然数。

公开(公告)号：US5416374A

公开(公告)日：1995-05-16

申请号：US88181

申请日：1993-07-06

申请人： Tatsunori Inoue ,  Masao Kasuga ,  Makoto Suzuki ,  Kenji Suzuki ,  Fujio Ozawa ,  Ko Yamazaki ,  Shinichi Hayashizaki

发明人： Tatsunori Inoue ,  Masao Kasuga ,  Makoto Suzuki ,  Kenji Suzuki ,  Fujio Ozawa ,  Ko Yamazaki ,  Shinichi Hayashizaki

IPC分类号： G04C3/12 ,  H01L41/04 ,  H02N2/00 ,  H02N2/14 ,  H02N2/16 ,  H01L41/08

CPC分类号： H02N2/166 ,  H02N2/142

摘要： An ultrasonic motor comprises a traveling wave generating circuit for generating a traveling wave signal effective to drive a moving member, and a standing wave generating circuit for generating at least one type of standing wave signal effective to stop movement of the moving member. A switching circuit is receptive of the traveling wave signal and the standing wave signal for selecting one of the traveling wave and the standing wave signals as an output signal. A piezoelectric vibrator drive circuit is receptive of the output signal of the switching circuit for producing a high-frequency voltage signal. At least one piezoelectric vibrator includes an electrode pattern and is adapted to be driven by the voltage signal to undergo expansion and compression. A vibrating member is fixed to the piezoelectric vibrator and vibrationally driven by the expansion and compression movement of the piezoelectric vibrator. A moving member is disposed on the vibrating member to be frictionally driven by expansion and compression movement of the piezoelectric vibrator. The moving member is provided with a plurality of load portions for stopping movement of the moving member, the load portions being greater in number than the number of nodes of the standing wave.

摘要翻译： 超声波马达包括用于产生有效驱动移动部件的行波信号的行波发生电路和产生至少一种有效停止移动部件移动的驻波信号的驻波发生电路。 开关电路接受行波信号和用于选择行波和驻波信号之一的驻波信号作为输出信号。 压电振动器驱动电路接受用于产生高频电压信号的开关电路的输出信号。 至少一个压电振动器包括电极图案，并且适于由电压信号驱动以进行膨胀和压缩。 振动部件被固定在压电振动器上并通过压电振动器的膨胀和压缩运动而振动地驱动。 移动构件设置在振动构件上，以通过压电振动器的膨胀和压缩运动来摩擦地驱动。 移动构件设置有用于停止移动构件的移动的多个负载部分，负载部分的数量大于驻波的节点数量。

公开(公告)号：US5592041A

公开(公告)日：1997-01-07

申请号：US324736

申请日：1994-10-18

申请人： Masao Kasuga ,  Kenji Suzuki ,  Makoto Suzuki ,  Minako Suzuki

发明人： Masao Kasuga ,  Kenji Suzuki ,  Makoto Suzuki ,  Minako Suzuki

IPC分类号： G04C3/12 ,  H01L41/04 ,  H02N2/00 ,  H02N2/14 ,  H01L41/08

CPC分类号： H02N2/142 ,  H02N2/145 ,  H02N2/166

摘要： An ultrasonic motor comprises a piezoelectric element having first and second surfaces. Electric patterns are disposed on the first surface of the piezoelectric element at nearly equal intervals in a multiple of four, with each pair of two neighboring electrode pattern corresponding to a region of the piezoelectric element which has an alternately reversed direction of polarization. First and second circuit devices short-circuit every other one of the electrode patterns to form two electrode pattern groups. A vibrating member is disposed on the second surface of and electrically connected to the piezoelectric element. Projections are disposed on the surface of the vibrating member near every other one of the boundaries of the electrode patterns. An oscillation driving circuit detects oscillation data from one of the electrode patterns short-circuited by the first circuit device, performs phase adjustment and amplification of the vibrating wave generated by the piezoelectric element, and inputs a driving signal to one of the electrode patterns short-circuited by the second circuit device. A moving member is movably disposed on the vibrating member, and a pressure-regulating member urges the moving member into pressure contact with the vibrating member.

摘要翻译： 超声波马达包括具有第一和第二表面的压电元件。 电气图案以四个等于几的相等间隔设置在压电元件的第一表面上，每对两个相邻的电极图案对应于具有交替反向的偏振方向的压电元件的区域。 第一和第二电路装置使电极图案中的每一个短路以形成两个电极图案组。 振动件设置在压电元件的第二表面上并与其电连接。 在电极图案的边界的每隔一个附近，突出部设置在振动部件的表面上。 振荡驱动电路从由第一电路装置短路的电极图案之一检测振荡数据，进行由压电元件产生的振动波的相位调整和放大，并将驱动信号输入到短路电极图案之一， 由第二电路装置耦合。 移动构件可移动地设置在振动构件上，并且压力调节构件促使移动构件与振动构件压力接触。

公开(公告)号：US06515941B1

公开(公告)日：2003-02-04

申请号：US09512238

申请日：2000-02-24

申请人： Kenji Suzuki ,  Akihiro Iino

发明人： Kenji Suzuki ,  Akihiro Iino

IPC分类号： G04B1924

CPC分类号： G04C17/0066 ,  G04C3/12

摘要： An electronic watch which can be small-sized even with an additional mechanism such as a calendar mechanism. In the electronic watch, a rectangular piezoelectric oscillator 32 acting as a piezoelectric actuator is forced at its end face to contact with a beam portion 35, which is mounted on a date ring 31 acting as a second indication member, thereby to drive the date ring 31 directly.

摘要翻译： 即使使用诸如日历机构的附加机构也能够小型化的电子手表。 在电子表中，用作压电致动器的矩形压电振动器32在其端面被迫使其与安装在用作第二指示构件的日期环31上的梁部35接触，从而驱动日期环 31直接

公开(公告)号：US06388362B1

公开(公告)日：2002-05-14

申请号：US09245046

申请日：1999-02-04

申请人： Kenji Suzuki ,  Takashi Yamanaka ,  Akihiro Iino ,  Kazuo Katou ,  Makoto Suzuki

发明人： Kenji Suzuki ,  Takashi Yamanaka ,  Akihiro Iino ,  Kazuo Katou ,  Makoto Suzuki

IPC分类号： H01L4108

CPC分类号： H02N2/166 ,  H02N2/147

摘要： An ultrasonic motor includes an oscillation drive circuit for generating an oscillation wave by self-excited oscillation of an oscillator bonded with a piezoelectric element, and a start/stop signal generating circuit for generating a signal for controlling the starting and stopping of the ultrasonic motor by bringing the oscillation drive circuit into an active state and a stop state, respectively. The oscillation drive circuit includes a power amplifier for amplifying an excitation signal, a capacitive circuit for adjusting a frequency of the excitation signal, and a switching circuit connected to a capacitive element of the capacitive circuit for short-circuiting terminals of the capacitive element based on an output signal of the start/stop signal generating circuit.

摘要翻译： 超声波马达包括：振荡驱动电路，用于通过与压电元件接合的振荡器的自激振荡产生振荡波;以及启动/停止信号发生电路，用于产生用于控制超声波马达的启动和停止的信号 将振荡驱动电路分别置于活动状态和停止状态。 振荡驱动电路包括用于放大激励信号的功率放大器，用于调节激励信号的频率的电容电路，以及连接到用于电容元件的短路端子的电容电路的电容元件的开关电路，其基于 启动/停止信号发生电路的输出信号。

公开(公告)号：US06573636B1

公开(公告)日：2003-06-03

申请号：US09714697

申请日：2000-11-16

申请人： Akihiro Iino ,  Kenji Suzuki ,  Kouji Nitadori

发明人： Akihiro Iino ,  Kenji Suzuki ,  Kouji Nitadori

IPC分类号： H01L4106

CPC分类号： H02N2/145 ,  H02N2/166

摘要： Pluralities of electrode groups are formed on one face of a piezoelectric element, and a common electrode is formed on another face. The common electrode is connected to a booster circuit for boosting a voltage signal obtained from an amplifier circuit. The pluralities of electrode groups are connected to selection circuits for switching a signal path of a signal output from here.

摘要翻译： 多个电极组形成在压电元件的一个面上，在另一个面上形成公共电极。 公共电极连接到升压电路，用于升压从放大器电路获得的电压信号。 多个电极组连接到用于切换从这里输出的信号的信号路径的选择电路。