公开(公告)号：US4965482A

公开(公告)日：1990-10-23

申请号：US365897

申请日：1989-06-14

申请人： Osamu Ohnishi ,  Sadayuki Takahashi ,  Osamu Myohga ,  Tadao Uchikawa ,  Takeshi Inoue ,  Isao Kagaya ,  Sadayuki Ueha

发明人： Osamu Ohnishi ,  Sadayuki Takahashi ,  Osamu Myohga ,  Tadao Uchikawa ,  Takeshi Inoue ,  Isao Kagaya ,  Sadayuki Ueha

IPC分类号： H01L41/09 ,  H02N2/12

CPC分类号： H02N2/106

摘要： An ultrasonic motor has a longitudinal-torsional composite transducer, a stator constituted by an ultrasonic vibrator sandwiching the transducer, and a rotor urged against the stator. The stator excites longitudinal-torsional ultrasonic vibrations to rotate the rotor by a frictional force. The motor includes a vibration adjusting rod for matching resonance frequencies of longitudinal and torsional ultrasonic vibrations of the stator with each other.

摘要翻译： 超声波马达具有纵向扭转复合传感器，由夹持换能器的超声波振子构成的定子以及抵靠定子的转子。 定子激发纵向扭转超声波振动，通过摩擦力使转子旋转。 电动机包括用于使定子的纵向和扭转超声波振动的谐振频率相互匹配的振动调节杆。

公开(公告)号：US4933590A

公开(公告)日：1990-06-12

申请号：US322212

申请日：1989-03-13

申请人： Takeshi Inoue ,  Osamu Ohnishi ,  Osamu Myohga ,  Sadayuki Takahashi ,  Tadao Uchikawa

发明人： Takeshi Inoue ,  Osamu Ohnishi ,  Osamu Myohga ,  Sadayuki Takahashi ,  Tadao Uchikawa

IPC分类号： H02N2/00 ,  H01L41/09 ,  H02N2/16

CPC分类号： H02N2/0045 ,  H02N2/106

摘要： This invention provides an ultrasonic motor using a bolt-tightened Langevin type torsional vibrator as a stator. The stator produces a vibrational energy to be converted into a rotational energy for a rotor contacted with the stator. The rotor is provided between a piezoelectric actuator and the torsional vibrator so that the contact state between the rotor and the torsional vibrator is controlled either one of loose contact and tight contact therebetween. According to the present invention, since the piezoelectric actuator is slidingly combined to the rotor, the rotation energy is not applied to the piezoelectric actuator and thus the life time of the actuator becomes long.

摘要翻译： 本发明提供一种使用螺栓紧固的朗格温型扭转振动器作为定子的超声波马达。 定子产生的振动能被转换为与定子接触的转子的旋转能量。 转子设置在压电致动器和扭转振动器之间，使得转子和扭转振动器之间的接触状态被控​​制为两者之间的松动接触和紧密接触。 根据本发明，由于压电致动器滑动地组合到转子上，因此旋转能量不施加到压电致动器，因此致动器的寿命变长。

公开(公告)号：US5051647A

公开(公告)日：1991-09-24

申请号：US548574

申请日：1990-07-05

申请人： Tadao Uchikawa ,  Osamu Ohnishi ,  Osamu Myohga ,  Takeshi Inoue

发明人： Tadao Uchikawa ,  Osamu Ohnishi ,  Osamu Myohga ,  Takeshi Inoue

IPC分类号： H01L41/09 ,  H02N2/16

CPC分类号： H02N2/0045 ,  H02N2/106

摘要： In an ultrasonic motor which uses, as a stator, a longitudinal-torsional composite vibrator in which longitudinal and torsional piezoelectric elements are sandwiched between two blocks, and urges a rotor against the stator, a member is arranged on a piezoelectric element side of the block located near the rotor, so that an inertial mass of the member becomes larger with respect to torsional vibration than that of a rotor side.

摘要翻译： 在使用纵向和扭转压电元件夹在两个块之间的纵向 - 扭转复合振动器作为定子的超声波马达中，并且将转子推向定子，构件被布置在块的压电元件侧 位于转子附近，使得构件的惯性质量相对于转子侧的扭转振动变得更大。

公开(公告)号：US5319278A

公开(公告)日：1994-06-07

申请号：US72721

申请日：1993-06-07

申请人： Osamu Myohga ,  Takeya Hashiguchi ,  Takeshi Inoue

发明人： Osamu Myohga ,  Takeya Hashiguchi ,  Takeshi Inoue

IPC分类号： H01L41/09 ,  H02N2/12 ,  H01L41/08

CPC分类号： H02N2/0045 ,  H02N2/0055 ,  H02N2/106

摘要： An ultrasonic motor comprises a rotor and a stator between which a pressurized face-to-face contact is established. The stator includes a longitudinal vibrator for producing a longitudinal thrust in the axial direction thereof and a torsional vibrator for transmitting a torsional thrust to the rotor in response to a longitudinal thrust timely generated by the longitudinal vibrator. The stator is supported by a structure which comprises a ring portion secured to the stator and a plurality of limb portions radially extending from the ring portion. Each of the limb portions has such an effective length and a width that the oscillation frequency of the motor matches the primary resonant frequency of a vibration of the limb portion generated on a plane normal to the axial direction of the stator and has such a thickness that the oscillation frequency matches an intermediate point between adjacent antiresonant frequencies of a vibration of the limb portion generated in the axial direction of the stator.

摘要翻译： 超声波马达包括转子和定子，在该定子之间建立加压的面对面接触。 定子包括用于在其轴向方向上产生纵向推力的纵向振动器和用于响应由纵向振动器及时产生的纵向推力将扭转推力传递到转子的扭转振动器。 定子由包括固定到定子的环部分和从环部分径向延伸的多个分支部分的结构支撑。 每个肢体具有这样的有效长度和宽度，使得电动机的振荡频率与在与定子的轴向方向垂直的平面上产生的肢体部分的振动的初级共振频率匹配，并且具有这样的厚度： 振荡频率与在定子的轴向产生的肢体部分的振动的相邻反共振频率之间的中间点相匹配。

公开(公告)号：US5576590A

公开(公告)日：1996-11-19

申请号：US348925

申请日：1994-11-25

申请人： Osamu Ohnishi ,  Takeshi Inoue

发明人： Osamu Ohnishi ,  Takeshi Inoue

IPC分类号： H01L41/107 ,  H01L41/257 ,  H01L41/08

CPC分类号： H01L41/107 ,  H01L41/257 ,  Y10T29/42

摘要： One driver having external electrodes arranged over both surfaces of a piezoelectric ceramic plate polarized in the direction of its thickness, and one generator having two mutually opposed interdigital electrodes on one or both surfaces of a piezoelectric cermic plate and alternateley polarized in the direction of its length between the electrode fingers of the interdigital electrodes are formed combined in alignment in the direction of the length of the piezoelectric ceramic plate. Alternatively, the driver and generator may be formed in alignment in the direction of the width of piezoelectric ceramic plate. By applying a low voltage to this piezoelectric ceramic transformer from the driver at a resonance frequency of a longitudinal vibration of second order mode of the piezoelectric ceramic plate, a high voltage can be picked up from the generator. Here, through connection of the input terminals and output terminals at the nodes of vibration, failure due to vibration of lead wires can be prevented, thereby obtaining a compact and slim transformer element that provides high reliability. A plurality of drivers and generators may also be employed, and in addition, an interdigital electrode may be used in the driver as well as in the generator.

摘要翻译： 一个驱动器，其具有布置在压电陶瓷板的厚度方向上偏振的两个表面上的外部电极，以及一个发生器，其在压电陶瓷板的一个或两个表面上具有两个相互对置的叉指电极，并且在其长度方向偏振 形成在指状电极的电极指之间沿压电陶瓷板的长度方向对准地组合。 或者，驱动器和发电机可以在压电陶瓷板的宽度方向上对准地形成。 通过以压电陶瓷板的二阶模式的纵向振动的共振频率从驱动器向该压电陶瓷变压器施加低电压，可以从发电机拾取高电压。 这里，通过在振动节点处输入端子和输出端子的连接，可以防止由于引线的振动引起的故障，从而获得提供高可靠性的紧凑且纤薄的变压器元件。 也可以使用多个驱动器和发电机，此外，在驱动器以及发电机中也可以使用叉指式电极。

公开(公告)号：US5118982A

公开(公告)日：1992-06-02

申请号：US530930

申请日：1990-05-30

申请人： Takeshi Inoue ,  Osamu Ohnishi ,  Nobuo Ohde

发明人： Takeshi Inoue ,  Osamu Ohnishi ,  Nobuo Ohde

IPC分类号： H01L41/107 ,  H03H9/58

CPC分类号： H03H9/178 ,  H01L41/107 ,  H03H9/581

摘要： Low and high impedance thickness mode vibration portions are integrally laminated. Each vibrator portion comprises electrode layers between which a piezoelectric layer polarized in the direction of thickness is interposed. In each vibrator portion, every other electrode layer is connected to respective common external terminals. These common external terminals are of either four-terminal construction consisting two pairs, one pair for the low impedance mode vibrator portion and the other pair for the high impedance thickness mode vibrator portion, or three-terminal construction in which one of each pair are united together into a common terminal. Difference between the impedances is set on difference in the number of electrode layers and/or on difference in dielectric constant between the piezoelectric layers.

摘要翻译： 低阻抗和高阻抗厚度模式振动部分被整体层压。 每个振动器部分包括电极层，在该电极层之间插入有沿厚度方向偏振的压电层。 在每个振动器部分中，每隔一个电极层连接到相应的公共外部端子。 这些公共外部端子是四端子结构，其包括两对，用于低阻抗模式振动器部分的一对，以及用于高阻抗厚度模式振动器部分的另一对，或者其中每对一个组合在一起的三端构造 一起成为一个共同的终端。 阻抗之间的差异设定在电极层的数量和/或压电层之间的介电常数的差异上。

公开(公告)号：US4384229A

公开(公告)日：1983-05-17

申请号：US233141

申请日：1981-02-10

申请人： Takeshi Inoue ,  Sadayuki Takahashi

发明人： Takeshi Inoue ,  Sadayuki Takahashi

IPC分类号： H03H3/04 ,  H03H9/02 ,  H03H9/05 ,  H03H9/17 ,  H01L41/08

CPC分类号： H03H9/177 ,  H03H3/04 ,  H03H9/02102

摘要： A thickness mode piezoelectric ceramic resonator is connected in series with a ceramic capacitor to form a piezoelectric ceramic resonator unit. When the ceramic capacitor has a capacitance Ca and the resonator is associated with a damped capacitor having a capacitance Co, these capacitances are related to each other by a relationship,Co.ltoreq.Ca.ltoreq.30 Co.

摘要翻译： 厚度模式压电陶瓷谐振器与陶瓷电容器串联连接以形成压电陶瓷谐振器单元。 当陶瓷电容器具有电容Ca并且谐振器与具有电容Co的阻尼电容器相关联时，这些电容通过关系Co 相关联。

公开(公告)号：US4756808A

公开(公告)日：1988-07-12

申请号：US869633

申请日：1986-06-02

申请人： Kazuaki Utsumi ,  Takeshi Inoue ,  Sadayuki Takahashi

发明人： Kazuaki Utsumi ,  Takeshi Inoue ,  Sadayuki Takahashi

IPC分类号： B06B1/06 ,  G10K11/02 ,  C25D13/00 ,  C25D13/02 ,  C25D13/04 ,  H01L41/04

CPC分类号： B06B1/067 ,  G10K11/02

摘要： A piezoelelectric transducer usable preferably as a high-frequency ultrasonic probe for diagnostic inspection and the process for preparation thereof are disclosed.The piezoelectric transducer comprises a piezoelectric material layer, a pair of electrode layers formed respectively on the opposite surfaces of said piezoelectric material layer and for applying electric load across the piezoelectric material layer to thereby generate acoustic oscillation or for measuring electric energy generated due to the acoustic oscillation of the piezoelectric material layer, and an acoustic matching section containing at least one quarter-wave matching layer and formed on one of the electrode layers. The acoustic matching section includes an elelctric conductive layer therein.The acoustic matching section is formed by electro deposition, preferably by the electro painting method or electrophoretic method.The ultrasonic probe can be prepared of a frequency band higher than 7.5 MHz, even higher than 10 MHz and provides a clear image of a shallow portion from the surface of an object to be inspected such as a human body.

摘要翻译： 可以优选使用可用作用于诊断检查的高频超声波探头及其制备方法的压电式换能器。 压电换能器包括压电材料层，一对电极层，分别形成在所述压电材料层的相对表面上，并用于在压电材料层之间施加电负载，从而产生声振动或用于测量由于声学产生的电能 压电材料层的振动，以及包含至少一个四分之一波长匹配层并形成在一个电极层上的声匹配部分。 声匹配部分包括其中的电导电层。 声匹配部分通过电沉积形成，优选通过电喷涂法或电泳方法形成。 可以制备高于7.5MHz，甚至高于10MHz的频带的超声波探头，并从被检查物体（例如人体）的表面提供浅部分的清晰图像。

公开(公告)号：US5278471A

公开(公告)日：1994-01-11

申请号：US940024

申请日：1992-09-03

申请人： Kaneo Uehara ,  Takeshi Inoue ,  Akio Iwamoto ,  Osamu Ohnishi ,  Yasuhiro Sasaki

发明人： Kaneo Uehara ,  Takeshi Inoue ,  Akio Iwamoto ,  Osamu Ohnishi ,  Yasuhiro Sasaki

IPC分类号： H01L41/107 ,  H01L41/08

CPC分类号： H01L41/107

摘要： A piezoelectric ceramic transformer includes a high impedance portion having internal electrode layers which are opposite each other in a thickness direction in a radial central portion of a piezoelectric ceramic disc; an annular insulating portion disposed externally of the high impedance portion and having no electrode; and a low impedance portion disposed externally of the annular insulating portion and having annular internal electrode layers which are opposite each other in a thickness direction, the internal electrode layers of the high impedance portion being exposed on the side end face of the piezoelectric ceramic disc at respective ends thereof without being in contact with the annular internal electrode layer of the low impedance portion and being alternately connected on the side end face with external electrodes, each of which is connected with an electric terminal, and the internal electrode layers of the low impedance portion being exposed on the side end face of the piezoelectric ceramic disc at respective ends thereof and being alternately connected on the side end face with external electrodes, each of which is connected with an electric terminal. The transformer is operable in a high frequency band and can be used for an onboard power supply.

摘要翻译： 压电陶瓷变压器包括具有在压电陶瓷盘的径向中心部分中沿厚度方向彼此相对的内部电极层的高阻抗部分; 设置在高阻抗部分外部并且不具有电极的环形绝缘部分; 以及低阻抗部，其设置在所述环状绝缘部的外侧，并且具有在厚度方向上相对的环状内部电极层，所述高阻抗部的内部电极层露出在所述压电陶瓷盘的侧端面 其端部不与低阻抗部分的环形内部电极层接触，并且在侧端面上交替地连接有与电端子连接的外部电极，并且低阻抗的内部电极层 部分露出在压电陶瓷盘的各个端部的侧端面上，并且在侧端面上交替地与外部电极连接，每个外部电极与电气端子连接。 变压器可在高频段工作，可用于车载电源。

公开(公告)号：US5806159A

公开(公告)日：1998-09-15

申请号：US665913

申请日：1996-06-19

申请人： Osamu Ohnishi ,  Takeshi Inoue

发明人： Osamu Ohnishi ,  Takeshi Inoue

IPC分类号： H01L41/107 ,  H01L41/257 ,  H04R17/00

CPC分类号： H01L41/107 ,  H01L41/257 ,  Y10T29/42

摘要： One driver having external electrodes arranged over both surfaces of a piezoelectric ceramic plate polarized in the direction of its thickness, and one generator having two mutually opposed interdigital electrodes on one or both surfaces of a piezoelectric ceramic plate and alternately polarized in the direction of its length between the electrode fingers of the interdigital electrodes are formed combined in alignment in the direction of the length of the piezoelectric ceramic plate. Alternatively, the driver and generator may be formed in alignment in the direction of the width of piezoelectric ceramic plate. By applying a low voltage to this piezoelectric ceramic transformer from the driver at a resonance frequency of a longitudinal vibration of second order mode of the piezoelectric ceramic plate, a high voltage can be picked up from the generator. Here, through connection of the input terminals and output terminals at the nodes of vibration, failure due to vibration of lead wires can be prevented, thereby obtaining a compact and slim transformer element that provides high reliability. A plurality of drivers and generators may also be employed, and in addition, an interdigital electrode may be used in the driver as well as in the generator.

摘要翻译： 一个驱动器，其具有布置在压电陶瓷板的厚度方向上偏振的两个表面上的外部电极，以及一个发生器，其在压电陶瓷板的一个或两个表面上具有两个彼此相对的交叉指状电极，并在其长度方向上交替极化 形成在指状电极的电极指之间沿压电陶瓷板的长度方向对准地组合。 或者，驱动器和发电机可以在压电陶瓷板的宽度方向上对准地形成。 通过以压电陶瓷板的二阶模式的纵向振动的共振频率从驱动器向该压电陶瓷变压器施加低电压，可以从发电机拾取高电压。 这里，通过在振动节点处输入端子和输出端子的连接，可以防止由于引线的振动引起的故障，从而获得提供高可靠性的紧凑且纤薄的变压器元件。 也可以使用多个驱动器和发电机，此外，在驱动器以及发电机中也可以使用叉指式电极。