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1. 发明授权

US07635940B2 Ultrasonic motor and microscope stage 有权
标题翻译：超声波电机和显微镜舞台
公开(公告)号：US07635940B2
公开(公告)日：2009-12-22
申请号：US11986409
申请日：2007-11-21
申请人： Yoshihiro Ue , Yasuaki Kasai , Nagahide Sakai , Makoto Harada
发明人： Yoshihiro Ue , Yasuaki Kasai , Nagahide Sakai , Makoto Harada
IPC分类号： H01L41/09
CPC分类号： H01L41/0913 , G02B21/26 , H01L41/083 , H02N2/026
摘要： An ultrasonic motor includes a vibrator formed by stacking a plurality of rectangular piezoelectric plates in a thickness direction, a driving circuit for applying a driving signal to a piezoelectric plate, and a detection circuit for detecting an electromotive force generated when the piezoelectric plate deforms, and this ultrasonic motor is configured in such a manner that there are a first piezoelectric plate and a second piezoelectric plate among the plurality of rectangular piezoelectric plates, the first and the second piezoelectric plate each is a piezoelectric plate in which a longitudinal vibration polarization portion that can excite longitudinal vibrations and a bending vibration polarization portion that can excite bending vibrations are polarized in a thickness direction, and the first piezoelectric plate is connected to the driving circuit and the detection circuit, and the second piezoelectric plate is connected to the driving circuit and is not connected to the detection circuit.
摘要翻译：超声波马达包括通过在厚度方向堆叠多个矩形压电板形成的振动器，用于向压电板施加驱动信号的驱动电路和用于检测当压电板变形时产生的电动势的检测电路，以及该超声波马达的构成是，在多个矩形压电板之间存在第一压电板和第二压电板，第一和第二压电板均为压电板，其中纵向振动极化部分激励纵向振动和可激发弯曲振动的弯曲振动极化部分在厚度方向上极化，第一压电板连接到驱动电路和检测电路，第二压电板连接到驱动电路，并且没有连接到检测器 n电路。

2. 发明授权

US07508114B2 Ultrasonic motor 有权
标题翻译：超声波电机
公开(公告)号：US07508114B2
公开(公告)日：2009-03-24
申请号：US11371517
申请日：2006-03-08
申请人： Yasuaki Kasai , Makoto Harada
发明人： Yasuaki Kasai , Makoto Harada
IPC分类号： H01L41/09
CPC分类号： H01L41/0906
摘要： It is an object to provide an ultrasonic motor that can stably and finely (that is, minutely) move a driven body. The invention provides an ultrasonic motor comprising an ultrasonic vibrator which includes an electromechanical transducer and which is configured to simultaneously generate two different vibration modes to produce substantially elliptical vibrations at output terminals by supplying two sets of alternating-current voltages with a predetermined phase difference and a predetermined driving frequency to the electromechanical transducer; and a pressing unit for pressing the output terminals of the ultrasonic vibrator against a driven body. The output terminals include first friction-contact members disposed at positions substantially corresponding to antinodes of a flexural vibration and a second friction-contact member disposed substantially at the center in the longitudinal direction of the ultrasonic vibrator.
摘要翻译：本发明的目的是提供一种能够稳定且精细（即精细地）移动被驱动体的超声波马达。本发明提供一种超声波电动机，其包括超声波振动器，该超声波振动器包括机电换能器，其被配置为同时产生两种不同的振动模式，以在输出端产生基本上椭圆的振动，通过提供具有预定相位差的两组交流电压，预定的机电换能器的驱动频率; 以及用于将超声波振动器的输出端子压靠在被驱动体上的按压单元。输出端子包括设置在基本上对应于弯曲波动的波腹的位置处的第一摩擦接触构件和基本上设置在超声波振动器的纵向方向上的中心的第二摩擦接触构件。

3. 发明申请

US20060290234A1 Driving method for ultrasonic motor and apparatus using the same 有权
标题翻译：超声波电机的驱动方法及其使用方法
公开(公告)号：US20060290234A1
公开(公告)日：2006-12-28
申请号：US11452814
申请日：2006-06-14
申请人： Yasuaki Kasai , Makoto Harada
发明人： Yasuaki Kasai , Makoto Harada
IPC分类号： H01L41/09
CPC分类号： H02N2/026 , H02N2/004 , H02N2/0075
摘要： A method for driving an ultrasonic motor includes the step of applying a driving alternating signal to an ultrasonic vibrator to simultaneously generate two different vibration modes in the ultrasonic vibrator to cause a substantially elliptical vibration at friction-contact members of the ultrasonic vibrator, thus relatively moving the ultrasonic vibrator and a driven body in contact with the ultrasonic vibrator. A preliminary vibration domain in which a preliminary vibration smaller than the substantially elliptical vibration is generated at the friction-contact members is provided prior to a main vibration domain in which the driving alternating signal is applied.
摘要翻译：一种用于驱动超声波马达的方法包括以下步骤：向超声波振动器施加驱动交变信号，以在超声波振动器中同时产生两种不同的振动模式，以在超声波振动器的摩擦接触部件处产生基本椭圆振动，从而相对移动超声波振动器和与超声波振动器接触的被驱动体。在施加驱动交变信号的主振动区域之前，提供在摩擦接触构件产生小于大致椭圆振动的初步振动的预振动区域。

4. 发明申请

US20060202589A1 Ultrasonic motor 有权
公开(公告)号：US20060202589A1
公开(公告)日：2006-09-14
申请号：US11371517
申请日：2006-03-08
申请人： Yasuaki Kasai , Makoto Harada
发明人： Yasuaki Kasai , Makoto Harada
IPC分类号： H02N2/00
CPC分类号： H01L41/0906
摘要： It is an object to provide an ultrasonic motor that can stably and finely (that is, minutely) move a driven body. The invention provides an ultrasonic motor comprising an ultrasonic vibrator which includes an electromechanical transducer and which is configured to simultaneously generate two different vibration modes to produce substantially elliptical vibrations at output terminals by supplying two sets of alternating-current voltages with a predetermined phase difference and a predetermined driving frequency to the electromechanical transducer; and a pressing unit for pressing the output terminals of the ultrasonic vibrator against a driven body. The output terminals include first friction-contact members disposed at positions substantially corresponding to antinodes of a flexural vibration and a second friction-contact member disposed substantially at the center in the longitudinal direction of the ultrasonic vibrator.

5. 发明申请

US20080122316A1 Ultrasonic motor and microscope stage 有权
标题翻译：超声波电机和显微镜舞台
公开(公告)号：US20080122316A1
公开(公告)日：2008-05-29
申请号：US11986409
申请日：2007-11-21
申请人： Yoshihiro Ue , Yasuaki Kasai , Nagahide Sakai , Makoto Harada
发明人： Yoshihiro Ue , Yasuaki Kasai , Nagahide Sakai , Makoto Harada
IPC分类号： G02B21/26 , H02N2/00 , H01L41/083 , H01L41/09
CPC分类号： H01L41/0913 , G02B21/26 , H01L41/083 , H02N2/026
摘要： An ultrasonic motor includes a vibrator formed by stacking a plurality of rectangular piezoelectric plates in a thickness direction, a driving circuit for applying a driving signal to a piezoelectric plate, and a detection circuit for detecting an electromotive force generated when the piezoelectric plate deforms, and this ultrasonic motor is configured in such a manner that there are a first piezoelectric plate and a second piezoelectric plate among the plurality of rectangular piezoelectric plates, the first and the second piezoelectric plate each is a piezoelectric plate in which a longitudinal vibration polarization portion that can excite longitudinal vibrations and a bending vibration polarization portion that can excite bending vibrations are polarized in a thickness direction, and the first piezoelectric plate is connected to the driving circuit and the detection circuit, and the second piezoelectric plate is connected to the driving circuit and is not connected to the detection circuit.
摘要翻译：超声波马达包括通过在厚度方向堆叠多个矩形压电板形成的振动器，用于向压电板施加驱动信号的驱动电路和用于检测当压电板变形时产生的电动势的检测电路，以及该超声波马达的构成是，在多个矩形压电板之间存在第一压电板和第二压电板，第一和第二压电板均为压电板，其中纵向振动极化部分激励纵向振动和可激发弯曲振动的弯曲振动极化部分在厚度方向上极化，第一压电板连接到驱动电路和检测电路，第二压电板连接到驱动电路，并且没有连接到检测器 n电路。

6. 发明授权

US07449814B2 Driving method for ultrasonic motor and apparatus using the same 有权
标题翻译：超声波电机的驱动方法及其使用方法
公开(公告)号：US07449814B2
公开(公告)日：2008-11-11
申请号：US11452814
申请日：2006-06-14
申请人： Yasuaki Kasai , Makoto Harada
发明人： Yasuaki Kasai , Makoto Harada
IPC分类号： H01L41/08
CPC分类号： H02N2/026 , H02N2/004 , H02N2/0075
摘要： A method for driving an ultrasonic motor includes the step of applying a driving alternating signal to an ultrasonic vibrator to simultaneously generate two different vibration modes in the ultrasonic vibrator to cause a substantially elliptical vibration at friction-contact members of the ultrasonic vibrator, thus relatively moving the ultrasonic vibrator and a driven body in contact with the ultrasonic vibrator. A preliminary vibration domain in which a preliminary vibration smaller than the substantially elliptical vibration is generated at the friction-contact members is provided prior to a main vibration domain in which the driving alternating signal is applied.
摘要翻译：一种用于驱动超声波马达的方法包括以下步骤：向超声波振动器施加驱动交变信号，以在超声波振动器中同时产生两种不同的振动模式，以在超声波振动器的摩擦接触部件处产生基本椭圆振动，从而相对移动超声波振动器和与超声波振动器接触的被驱动体。在施加驱动交变信号的主振动区域之前，提供在摩擦接触构件产生小于大致椭圆振动的初步振动的预振动区域。

7. 发明授权

US08531084B2 Ultrasonic motor unit 有权
标题翻译：超声波电机单元
公开(公告)号：US08531084B2
公开(公告)日：2013-09-10
申请号：US13180731
申请日：2011-07-12
申请人： Yasuaki Kasai
发明人： Yasuaki Kasai
IPC分类号： H02N2/00
CPC分类号： H02N2/103 , H02N2/004
摘要： According to one embodiment, an ultrasonic motor unit includes a piezoelectric element, a holder member, a pressing member, a pressing auxiliary member, a driven member, an ultrasonic motor accommodation member, a power extraction member. The piezoelectric element has a rectangular cross-sectional shape. The holder member holds the piezoelectric element so as to cover an outer surface of a portion of the piezoelectric element. The pressing member applies a predetermined pressing force to the piezoelectric element. The pressing auxiliary member transfers a pressing force generated by the pressing member to the holder member. The driven member is in contact with one end face of the piezoelectric element. The power extraction member is coupled to the ultrasonic motor accommodation member to form a joint portion. The ultrasonic motor unit is formed by connecting a plurality of sections each formed by coupling the ultrasonic motor accommodation member to the power extraction member.
摘要翻译：根据一个实施例，超声波马达单元包括压电元件，保持器构件，按压构件，按压辅助构件，从动构件，超声波马达容纳构件，动力提取构件。压电元件具有矩形横截面形状。保持器构件保持压电元件以覆盖压电元件的一部分的外表面。按压构件对压电元件施加预定的按压力。按压辅助构件将由按压构件产生的按压力传递到保持构件。从动构件与压电元件的一个端面接触。功率提取构件联接到超声波马达容纳构件以形成接合部分。超声波马达单元通过将通过将超声波马达容纳构件联接形成的多个部分连接到功率提取部件而形成。

8. 发明授权

US5399311A Radial anisotropic ring magnet with a sinusoidal waveform and producing method thereof 失效
标题翻译：具有正弦波形的径向各向异性环形磁体及其制造方法
公开(公告)号：US5399311A
公开(公告)日：1995-03-21
申请号：US975081
申请日：1992-11-12
申请人： Yasuaki Kasai , Hiyoshi Yamada , Norio Yoshikawa
发明人： Yasuaki Kasai , Hiyoshi Yamada , Norio Yoshikawa
IPC分类号： H01F1/053 , H01F7/02 , H01F13/00 , H01F41/02 , H02K1/27 , H02K15/03 , H01F41/16
CPC分类号： H01F41/028 , H01F7/021 , H02K1/2733 , H02K15/03 , Y10S264/58
摘要： A magnet is formed as a ring magnet and magnetized by radial application of a magnetic field while the intensity of the magnetic field is changed periodically along the circumference of the ring magnet to give a circumferentially sinusoidal waveform distribution of magnetic flux density to the ring magnet in the magnetized state of the magnet.
摘要翻译：磁体形成为环形磁铁，并通过磁场的径向施加磁化，同时磁场的强度沿着环形磁体的圆周周期性地改变，从而给予环形磁体的磁通密度的圆周正弦波形分布磁体的磁化状态。

9. 发明授权

US07791796B2 Motorized table apparatus and microscope stage 有权
标题翻译：电动台装置和显微镜台
公开(公告)号：US07791796B2
公开(公告)日：2010-09-07
申请号：US11820740
申请日：2007-06-20
申请人： Yoshihiro Ue , Yasuaki Kasai , Katsuji Horiuchi
发明人： Yoshihiro Ue , Yasuaki Kasai , Katsuji Horiuchi
IPC分类号： G02B21/26
CPC分类号： G02B21/26 , H02N2/026 , H02N2/028
摘要： A motorized table apparatus comprises: a support unit for supporting a movement table so as to allow it to move in a single axis direction relative to a stationary unit which is fixed to the movement table; a slide member which is equipped on the movement table and which has a length equivalent to, or more than, a moving range of the movement table; an ultrasonic oscillators which is equipped on the stationary unit, which moves the movement table, and which comprises a single piezoelectric body and two drive elements; and a pressure application unit for supporting so that the two drive elements of the ultrasonic oscillator and the slide member are pressed by a constant force, wherein a plurality of the ultrasonic oscillators are equipped.
摘要翻译：电动台装置包括：支撑单元，用于支撑移动台，以便允许其相对于固定到移动台的固定单元在单个轴线方向上移动; 滑动构件，其配置在所述移动台上，其长度等于或大于所述移动台的移动范围; 设置在固定单元上的超声波振荡器，其移动移动台，并且包括单个压电体和两个驱动元件; 以及压力施加单元，用于支撑使得超声波振荡器和滑动构件的两个驱动元件被恒定的力按压，其中配备有多个超声波振荡器。

10. 发明授权

US07732983B2 Ultrasonic motor 有权
标题翻译：超声波电机
公开(公告)号：US07732983B2
公开(公告)日：2010-06-08
申请号：US12272159
申请日：2008-11-17
申请人： Yasuaki Kasai
发明人： Yasuaki Kasai
IPC分类号： H02N2/00
CPC分类号： H02N2/004 , G02B7/08 , H02N2/0055 , H02N2/026
摘要： A ultrasonic motor includes a piezoelectric device, and friction contact members moves a driven body by a elliptical vibration. And the ultrasonic motor includes a holder member which is disposed corresponding to a node of a longitudinal vibration or in the vicinity thereof on the face of the piezoelectric device and a node of a flexural vibration or in the vicinity thereof, the holder member having an engagement convex portion and being provided with a pair of sliding contact projection portions, a position limiting member which has accommodation holes each constituted of a sliding contact concave portion for accommodating the sliding contact projection portion such that it makes a sliding contact therewith freely and an engagement concave portion for accommodating the engagement convex portion, and a pressure member which presses the holder member so as to bring the friction contact members into pressure contact with the driven body.
摘要翻译：超声波马达包括压电装置，摩擦接触构件通过椭圆振动使被驱动体移动。并且超声波马达包括：与压电装置的表面上的纵向振动的节点或其附近相对应地设置的保持构件和弯曲节点或其附近，保持构件具有接合凸部，并且设置有一对滑动接触突出部，位置限制构件，其具有容纳所述滑动接触突起部的滑动接触凹部，以使其与其自由滑动接触的接合凹部和接合凹部用于容纳接合凸部的部分，以及压紧构件，其按压保持构件以使摩擦接触构件与被驱动体压力接触。

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