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：US6064139A

公开(公告)日：2000-05-16

申请号：US321581

申请日：1994-10-11

申请人： Fujio Ozawa ,  Takashi Sato ,  Masao Kasuga ,  Shuji Otawa

发明人： Fujio Ozawa ,  Takashi Sato ,  Masao Kasuga ,  Shuji Otawa

IPC分类号： H01L41/09 ,  H02N2/16 ,  H01L41/08

CPC分类号： H02N2/163 ,  H02N2/14

摘要： An ultrasonic motor capable of being accurately step-driven comprises a vibrating member piezoelectrically vibrated for driving and halting a movable member. A driving wave is generated for vibrating the vibrating member to drive the movable member, and a halting wave is generated for vibrating the vibrating member to halt the movable member. The driving wave can be either a travelling wave or a standing wave, and the halting wave is a standing wave. The movable member is divided into a plurality of portions, and when the vibrating member is driven by the halting wave, the portions of the movable member become centered at respective nodal portions of the standing halting wave, causing the movable member to stop rotating so that the ultrasonic motor can be accurately step-driven.

摘要翻译： 能够精确地逐步驱动的超声波马达包括压电振动的振动部件，用于驱动和停止可动部件。 产生用于使振动部件振动以驱动可动部件的驱动波，产生使振动部件振动以停止可动部件的停止波。 驱动波可以是行波还是驻波，停波是驻​​波。 可移动部件被分成多个部分，并且当振动部件被停止波驱动时，可移动部件的部分在驻停的波浪的相应节点处居中，从而使可动部件停止旋转，从而 超声波电机可以精确地逐级驱动。

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：US5440192A

公开(公告)日：1995-08-08

申请号：US232873

申请日：1994-04-25

申请人： Masao Kasuga

发明人： Masao Kasuga

IPC分类号： H01L41/09 ,  H02N2/16 ,  H01L41/08

CPC分类号： H02N2/166

摘要： A thin, small-diameter, and efficient ultrasonic motor using a component of flexible travelling waves comprises a base, a stator and a rotor. The stator has an elastic vibrating body and a ceramic piezoelectric vibrator provided on one side of the elastic vibrating body. A central portion of the stator is secured and freely supported by a central support shaft.

摘要翻译： 使用柔性行波的部件的薄的，小直径的和有效的超声波马达包括基座，定子和转子。 定子具有弹性振动体和设置在弹性振动体一侧的陶瓷压电振动器。 定子的中心部分由中心支撑轴固定并自由地支撑。

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：US5365139A

公开(公告)日：1994-11-15

申请号：US36033

申请日：1993-03-23

申请人： Masao Kasuga ,  Tatsunori Inoue ,  Jun Hirotomi ,  Hiroshi Kitamura

发明人： Masao Kasuga ,  Tatsunori Inoue ,  Jun Hirotomi ,  Hiroshi Kitamura

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

CPC分类号： H02N2/14 ,  G04C3/12 ,  H02N2/163

摘要： An electronic apparatus which is equipped with an ultrasonic motor and which consumes only a small amount of electric power, is stable in performance, and is capable of accurately controlling the angular position is offered.A driving pulse storage circuit stores driving pulses corresponding to the environment of the components of the ultrasonic motor. A stopping pulse storage circuit stores stopping pulses corresponding to the environment of the components of the motor. An environment detection means detects the environment of the components. An output pulse-selecting circuit receives the output signal from a driving pulse-generating circuit and the output signal from a stopping pulse-generating circuit and produces output pulses corresponding to the output signal from a detection signal-generating circuit to a piezoelectric vibrator-driving circuit. The moving member and the output means are operated by ultrasonic vibration of the vibrating member.

摘要翻译： 配备有超声波马达并且仅消耗少量电力的电子设备性能稳定，并且能够精确地控制角位置。 驱动脉冲存储电路存储对应于超声波马达的部件的环境的驱动脉冲。 停止脉冲存储电路存储对应于电动机的部件的环境的停止脉冲。 环境检测装置检测部件的环境。 输出脉冲选择电路接收来自驱动脉冲发生电路的输出信号和来自停止脉冲发生电路的输出信号，并产生与从检测信号发生电路到压电振动器驱动的输出信号相对应的输出脉冲 电路。 移动构件和输出装置通过振动构件的超声波振动来操作。

公开(公告)号：US5254899A

公开(公告)日：1993-10-19

申请号：US824014

申请日：1992-01-22

申请人： Makoto Suzuki ,  Nobuo Tsukada ,  Ichiro Horikoshi ,  Fujio Ozawa ,  Masao Kasuga

发明人： Makoto Suzuki ,  Nobuo Tsukada ,  Ichiro Horikoshi ,  Fujio Ozawa ,  Masao Kasuga

IPC分类号： B62D57/02 ,  B60L15/20 ,  G05D3/00 ,  H01L41/04 ,  H01L41/09 ,  H02N2/00 ,  H02N2/16 ,  H01L41/08 ,  B61B13/10

CPC分类号： H02N2/166 ,  H02N2/14 ,  Y02T10/7258

摘要： A traveller having two ultrasonic motors, each of which movable member drives the driving wheel respectively. The ultrasonic motor comprises a vibrating member, a moving member and a pressure regulating member. The driving circuit sends signals to turn the ultrasonic motor, which turn the moving memeber to turn the driving wheel. With the driving wheel turning, the traveller travels freely in any direction. Each of two ultrasonic motors receives respective signals to travel freely in any direction as a effect.

公开(公告)号：US4355304A

公开(公告)日：1982-10-19

申请号：US217949

申请日：1980-12-18

申请人： Masao Kasuga ,  Norio Hiyama ,  Yoshiyuki Tsuchikane

发明人： Masao Kasuga ,  Norio Hiyama ,  Yoshiyuki Tsuchikane

IPC分类号： H03G7/00 ,  H04B14/04 ,  H03K13/24

CPC分类号： H04B14/048 ,  H03G7/007

摘要： A compressing system for digital modulated signals comprises an analog-to-digital converter for obtaining a digital modulated signal by digitally modulating an analog signal; a first variable gain circuit provided at the output side of the analog-to-digital converter; and a first gain control circuit for equivalently performing level-compression of the analog conversion level of the input digital modulated signal of the first gain control circuit within a predetermined level range by use of a first control signal and the first variable gain circuit. The first gain control circuit comprises an expected signal generating circuit having an analog conversion level z.sub.n which satisfies the equation ##EQU1## (N is an arbitrary natural number, and a.sub.O through a.sub.N are zero or an arbitrary number) where y.sub.n designates the analog conversion level of a digital modulated signal or the differential signal of the digital modulated signal at a time nT obtained from either the input side or output side of said first variable gain circuit (T indicates the sampling period of the digital modulated signal) and a.sub.i designates the coefficient used for the weighting, a variable reference level generator which generates a reference level, and a comparator which supplies the first control signal as output by comparing the reference level thus generated with the analog conversion level z.sub.n of the above expected signal. The expanding system comprises a second variable gain circuit supplied with the digital modulated signal obtained and transmitted from the first gain control circuit, which varies the analog conversion level of the input digital modulated signal according to a second control signal; a second gain control circuit for equivalently performing level-expansion of the analog conversion level of the input digital modulated signal of the second gain control circuit by the same quantity as the above level-compression within a predetermined level range by use of the second variable gain circuit and performing an opposite operation as that performed by the first gain control circuit with respect to the digital modulated signal obtained from either the input side or the output side of the second variable gain circuit, and a digital-to-analog converter for converting the output digital modulated signal of the second variable gain circuit into an analog signal.

公开(公告)号：US06917034B2

公开(公告)日：2005-07-12

申请号：US10187577

申请日：2002-07-02

申请人： Akihiro Iino ,  Mizuaki Suzuki ,  Masao Kasuga

发明人： Akihiro Iino ,  Mizuaki Suzuki ,  Masao Kasuga

IPC分类号： G01D5/244 ,  G01D5/347 ,  G05D3/12 ,  H01L41/04 ,  H02N2/00 ,  G01D5/34

CPC分类号： H02N2/142 ,  G01D5/347

摘要： An electronic equipment has a movable body and a position detecting device having an incremental-type encoder and an incremental-type counter. The position detecting device detects a position of the movable body by setting a starting point of position detection by the incremental-type encoder to a position that the movable body passes through most frequently during movement thereof.

摘要翻译： 电子设备具有可移动体和具有增量型编码器和增量型计数器的位置检测装置。 位置检测装置通过将增量型编码器的位置检测的起始点设定为可移动体在其移动期间最频繁地穿过的位置来检测可移动体的位置。

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。