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：US06779238B2

公开(公告)日：2004-08-24

申请号：US09802615

申请日：2001-03-09

申请人： Makoto Suzuki ,  Akihiro Iino ,  Masao Kasuga ,  Keitarou Koroishi

发明人： Makoto Suzuki ,  Akihiro Iino ,  Masao Kasuga ,  Keitarou Koroishi

IPC分类号： H04R1700

CPC分类号： H02N2/16 ,  H01L41/25 ,  Y10T29/42 ,  Y10T29/49004 ,  Y10T29/49126 ,  Y10T29/49128 ,  Y10T29/49147 ,  Y10T29/49155 ,  Y10T29/49789 ,  Y10T29/49798

摘要： In a method of manufacturing a piezoelectric actuator there are provided a piece of piezoelectric material having piezoelectric bodies, a first piece of material having vibrational bodies, a second piece of material having movable bodies, and a third piece of material having pressurizing members. The first, second and third pieces of materials are superimposed over the piece of piezoelectric material to form a multilayered structure having piezoelectric actuators. The multilayered structure is cut to separate each of the piezoelectric actuators from one another.

摘要翻译： 在压电致动器的制造方法中，设置有具有压电体的压电材料片，具有振动体的第一片材​​料，具有移动体的第二片材料和具有加压构件的第三片材料。 第一，第二和第三片材料叠加在压电材料片上以形成具有压电致动器的多层结构。 切割多层结构以将每个压电致动器彼此分离。

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：US06211603B1

公开(公告)日：2001-04-03

申请号：US09082507

申请日：1998-05-21

申请人： Akihiro Iino ,  Masao Kasuga ,  Makoto Suzuki

发明人： Akihiro Iino ,  Masao Kasuga ,  Makoto Suzuki

IPC分类号： H02N204

CPC分类号： H02N2/004 ,  H02N2/0055 ,  H02N2/006 ,  H02N2/026 ,  H02N2/103

摘要： An ultrasonic motor has a vibrating member vibrationally driven for undergoing periodic vibration by the application of a high-frequency voltage. A moving body is frictionally driven by the periodic vibration of the vibrating member. A node supporting/pressurizing member supports a vibration node of the vibrating member and presses the vibrating member on the moving body.

摘要翻译： 超声波马达具有通过施加高频电压振动驱动以进行周期性振动的振动部件。 移动体由振动部件的周期性振动摩擦驱动。 节点支撑/加压构件支撑振动构件的振动节点并将振动构件按压在移动体上。

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：US06252333B1

公开(公告)日：2001-06-26

申请号：US09253501

申请日：1999-02-19

申请人： Akihiro Iino ,  Masao Kasuga

发明人： Akihiro Iino ,  Masao Kasuga

IPC分类号： H02N200

CPC分类号： H02N2/026 ,  H01L41/0913 ,  H01L41/092 ,  H02N2/028

摘要： A stage comprises a first moving body mounted on a support base for movement in a first direction (e.g., X direction) relative to the support base. A second moving body is mounted on the first moving body for movement in the first direction and in a second direction (e.g., Y direction) relative to the support base and the first moving body. A first piezoelectric actuator is in contact with the first moving body for moving the first moving body in the first direction. A second piezoelectric actuator is in contact with the second moving body for moving the second moving body in the second direction.

摘要翻译： 平台包括安装在支撑基座上的第一移动体，用于相对于支撑基座沿第一方向（例如，X方向）移动。 第二移动体安装在第一移动体上，用于相对于支撑基座和第一移动体在第一方向和第二方向（例如，Y方向）上移动。 第一压电致动器与第一移动体接触，用于沿第一方向移动第一移动体。 第二压电致动器与第二移动体接触，用于沿第二方向移动第二移动体。

公开(公告)号：US06064138A

公开(公告)日：2000-05-16

申请号：US74361

申请日：1998-05-07

申请人： Akihiro Iino ,  Masao Kasuga ,  Kenji Suzuki

发明人： Akihiro Iino ,  Masao Kasuga ,  Kenji Suzuki

IPC分类号： H02N2/00 ,  H01L41/04 ,  H02N2/06 ,  H02N2/14

CPC分类号： H02N2/142

摘要： An ultrasonic wave motor device comprises an oscillating body having a piezo-electric element and a driving circuit for applying an exciting signal to the piezo-electric element to oscillate the oscillating body in self-excited oscillation. The driving circuit has an amplifying circuit for amplifying the exciting signal and a phase setting circuit for setting a phase of the exciting signal amplified by the amplifying circuit. A measuring device measures a characteristic of the driving circuit or a characteristic of the oscillating body. A phase adjusting circuit corrects a shift of the phase of the exciting signal in accordance with a measurement by the measuring device.

摘要翻译： 超声波电动机装置包括具有压电元件的振荡体和用于向压电元件施加激励信号的振荡体，以使振动体在自激振荡中振荡。 驱动电路具有用于放大激励信号的放大电路和用于设定由放大电路放大的激励信号的相位的相位设定电路。 测量装置测量驱动电路的特性或振动体的特性。 相位调整电路根据测量装置的测量来校正激励信号的相位偏移。

公开(公告)号：US06720711B2

公开(公告)日：2004-04-13

申请号：US09398639

申请日：1999-09-17

申请人： Akihiro Iino ,  Masao Kasuga

发明人： Akihiro Iino ,  Masao Kasuga

IPC分类号： H01L4108

CPC分类号： H01L41/092 ,  H01L41/0913 ,  H01L41/094 ,  H02N2/106

摘要： A piezoelectric actuator comprises a plurality of piezoelectric elements stacked in a thickness direction thereof for undergoing expansion/contraction movement to vibrationally drive the piezoelectric actuator in accordance with a driving signal applied to the piezoelectric elements. Each of the piezoelectric elements has a length extending in a direction generally perpendicular to the stacking direction. The length of each of at least two of the piezoelectric elements being different from the length of at least one other of the piezoelectric elements.

摘要翻译： 压电致动器包括沿其厚度方向堆叠的多个压电元件，用于进行膨胀/收缩运动，以根据施加到压电元件的驱动信号振动驱动压电致动器。 每个压电元件具有在大致垂直于层叠方向的方向上延伸的长度。 至少两个压电元件中的每一个的长度与至少另一个压电元件的长度不同。

公开(公告)号：US06717330B2

公开(公告)日：2004-04-06

申请号：US10187570

申请日：2002-07-02

申请人： Akihiro Iino ,  Kouji Nitadori ,  Masao Kasuga

发明人： Akihiro Iino ,  Kouji Nitadori ,  Masao Kasuga

IPC分类号： H02N200

CPC分类号： H02N2/163 ,  H02N2/14

摘要： A control portion always monitors a present-position signal from a position sensor and monitors whether the present position of a moving body is a desired position, or not (Step 101). In the case where the control portion detects that the present position of the moving body reaches the desired position, the control portion generates a stop command signal and gives the stop command signal to an oscillation drive circuit (S102). Then, the control portion checks whether overshooting occurs, or not (S103), and in the case where the control portion judges that overshooting occurs, the control portion retains a stop command signal as it is for a stop command retaining time t (S104). After the stop command retaining time t elapses, the control portion gives a reverse command signal to the oscillation drive circuit to conduct reverse operation (S105). After Step S105, the control is returned to Step S101 and the above operation is repeated. Then, in the case where the control portion judges that overshooting does not occur in Step S103, position correcting operation is completed.

摘要翻译： 控制部分总是监视来自位置传感器的当前位置信号，并且监视移动体的当前位置是否为期望位置（步骤101）。 在控制部检测到移动体的当前位置达到期望位置的情况下，控制部产生停止指令信号，并向振荡驱动电路送出停止命令信号（S102）。 然后，控制部检查是否发生过冲（S103），在控制部判断为过冲的情况下，控制部按照停止指令保持时间t保持停止指令信号（S104） 。 在停止命令保持时间t过去之后，控制部分向振荡驱动电路给出反向指令信号以进行反向操作（S105）。 在步骤S105之后，控制返回到步骤S101，并重复上述操作。 然后，在步骤S103中控制部判断为不发生过冲的情况下，完成位置校正动作。

公开(公告)号：US06984919B2

公开(公告)日：2006-01-10

申请号：US10395674

申请日：2003-03-24

申请人： Akihiro Iino ,  Koji Nitadori ,  Masao Kasuga

发明人： Akihiro Iino ,  Koji Nitadori ,  Masao Kasuga

IPC分类号： H02N2/06

CPC分类号： H02N2/0075

摘要： To provide a control system provided with a positioning mechanism including plural ultrasonic motors in the device, which can keep good operational stability as compared with a conventional system with a servo mechanism, is of an energy saving type suppressing power consumption and is compact in structure including the motor and a control circuit therefor. A control circuit in a control system of the present invention uses a common drive control circuit for a plurality of ultrasonic motors among the positioning mechanisms in which when the drive control circuit inputs a signal that specifies any ultrasonic motor and a desired-position designation signal, the drive control circuit conducts control operation that transmits an on signal to a driver of the subject motor to start the driving, and stops the driving when the motor reaches a desired position while receiving a position detection signal. Thus, the control system has a function of transmitting a signal indicating that the positioning operation is being conducted from a time point when commands are received to a time point when the positioning operation is completed. Then, an error signal is outputted when the motor is out of the desired position.

摘要翻译： 为了提供一种具有定位机构的控制系统，与具有伺服机构的传统系统相比，该装置中包括多个超声波马达的定位机构能够保持良好的运行稳定性，是节能型的抑制功率消耗，结构紧凑，包括 电机及其控制电路。 本发明的控制系统中的控制电路在定位机构中使用用于多个超声波马达的公共驱动控制电路，其中当驱动控制电路输入指定任何超声波马达的信号和期望位置指定信号时， 驱动控制电路进行向目标马达的驾驶员发送接通信号的控制动作，开始驱动，在接收到位置检测信号时电动机达到期望位置时停止驱动。 因此，控制系统具有从指令接收的时刻到定位动作完成的时刻发送表示进行定位动作的信号的功能。 然后，当电机超出所需位置时，输出错误信号。