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1. 发明授权

US4496247A Display device with transparent cover as a vibrator of a sound generator 失效
标题翻译：具有透明盖的显示装置作为发声器的振动器
公开(公告)号：US4496247A
公开(公告)日：1985-01-29
申请号：US454531
申请日：1982-12-30
申请人： Akio Kumada
发明人： Akio Kumada
IPC分类号： G02F1/1343 , G04G13/02 , G04C21/16
CPC分类号： G04G13/021 , G02F1/13439
摘要： Disclosed is a display device including a transparent piezoelectric element having transparent electrodes coated on both surfaces thereof, bonded by transparent adhesive material on an inner surface of a transparent cover to be arranged in front of a display panel of the display device. The transparent cover works as a vibration generator of a sound source. The thickness of the transparent electrodes are selected to serve as an anti-reflection layer of the near ultraviolet light. Relative dimensions of and positional relation between the transparent cover and the piezoelectric element are limited in predetermined ranges to assure high quality of display characteristic and sufficient volume of sound.
摘要翻译：公开了一种显示装置，其包括透明压电元件，其透明电极涂覆在其两个表面上，通过透明粘合剂材料粘结在透明盖的内表面上，以布置在显示装置的显示面板的前面。透明盖用作声源的振动发生器。选择透明电极的厚度作为近紫外光的防反射层。透明盖和压电元件的相对尺寸和位置关系被限制在预定范围内，以确保显示特性和足够音量的高品质。

2. 发明授权

US4392747A Display device structure 失效
标题翻译：显示设备结构
公开(公告)号：US4392747A
公开(公告)日：1983-07-12
申请号：US199976
申请日：1980-10-23
申请人： Akio Kumada , Takahiko Ihochi , Makoto Homma , Masashi Tanaka
发明人： Akio Kumada , Takahiko Ihochi , Makoto Homma , Masashi Tanaka
IPC分类号： H04R17/10 , G04G13/02 , G09F27/00 , G10K9/12 , G10K9/122 , G10K13/00 , G04C23/02 , G04C21/16
CPC分类号： G10K13/00 , G04G13/021
摘要： A display device structure comprising a casing, a display panel placed in the casing, a transparent covering and vibrating plate member on the front side of the display panel and an actuator for the plate member. The covering and vibrating plate member is carried on the casing through an elastic member interposed between the peripheral portion of the plate member and the casing. By this arrangement the plate member is capable of effectively generating sound outward upon reception of vibrating force from the actuator.
摘要翻译：一种显示装置结构，包括壳体，放置在壳体中的显示面板，在显示面板的前侧上的透明覆盖物和振动板构件以及用于板构件的致动器。覆盖振动板构件通过插入在板构件的周边部分和壳体之间的弹性构件承载在壳体上。通过这种布置，板构件能够在从致动器接收到振动力时有效地产生声音。

3. 发明授权

US4046455A Irregular ferroelectric element devised for motion of plural domain-walls 失效
标题翻译：设定了适用于全球范围运动的非正式电磁元件
公开(公告)号：US4046455A
公开(公告)日：1977-09-06
申请号：US626995
申请日：1975-10-29
申请人： Akio Kumada , Hiroshi Takano , Yoshizumi Eto , Masao Hibi
发明人： Akio Kumada , Hiroshi Takano , Yoshizumi Eto , Masao Hibi
IPC分类号： G02F1/05 , H01G7/02
CPC分类号： H01G7/025 , G02F1/05
摘要： An element in which only a single domain-wall can move sidewise, having a crystal plate of an irregular ferroelectric which is cut in the Z-plane at opposite surfaces and is then cut or cleaved in the direction at its periphery and transparent electrodes for the polarization reversal provided at the central portions of the opposite Z-planes. The element includes at least a domain configuration such that two nucleus regions of opposite polarities are disposed on opposite sides of the region, i.e., a domain having a stationary polarity, where the electrodes are provided.

4. 发明授权

US3990057A Ferroelectric analog memory device and method of operating the same 失效
标题翻译：铁电模拟存储器件及其操作方法
公开(公告)号：US3990057A
公开(公告)日：1976-11-02
申请号：US546928
申请日：1975-02-04
申请人： Akio Kumada
发明人： Akio Kumada
IPC分类号： H04N5/70 , G09F9/30 , G11C27/00 , G11C27/02 , G11C11/22
CPC分类号： G11C27/02
摘要： For recording analog information, a voltage is applied to a ferroelectric material plate as a synchronizing signal, the voltage having an amplitude equal at least to that of the threshold voltage for switching the polarization of the ferroelectric material plate and having a time width which is greater than the switching period of the polarization of the ferroelectric material, corresponding to the amplitude. A quantity of switching charge is modulated in proportion to the gradation of the analog information signal, the switching charge flowing through an external circuit which is connected in series with a ferroelectric material plate.
摘要翻译：为了记录模拟信息，向铁电材料板施加电压作为同步信号，其电压至少等于用于切换铁电材料板的极化的阈值电压的振幅，并且具有更大的时间宽度比铁电材料的极化的切换期间对应于振幅。与模拟信息信号的灰度成比例地调制开关电荷量，流过与铁电体板串联连接的外部电路的开关电荷。

5. 发明授权

US4947076A Piezo electric motor 失效
标题翻译：压电电动机
公开(公告)号：US4947076A
公开(公告)日：1990-08-07
申请号：US285394
申请日：1988-12-16
申请人： Akio Kumada
发明人： Akio Kumada
IPC分类号： H01L41/09 , H02N2/12 , H02N2/16
CPC分类号： H02N2/103 , H02N2/0045 , H02N2/106
摘要： A piezoelectric motor comprising a movable element having a first flat surface, vibration elements formed by combination of at least one twisting vibration member vibrating in a twisting manner and at least one piezoelectric element acting to vibrate the twisting vibration member. The vibration elements have a second flat surface adapted to abut against the first flat surface so that the movable element can be driven by surface contact between the first flat surface and the second flat surface.
摘要翻译：一种压电电动机，包括具有第一平坦表面的可移动元件，通过组合至少一个以扭转方式振动的扭转振动元件和用于振动所述扭转振动元件的至少一个压电元件形成的振动元件。振动元件具有适于抵靠第一平坦表面的第二平坦表面，使得可移动元件可以通过第一平坦表面和第二平坦表面之间的表面接触来驱动。

6. 发明授权

US4868446A Piezoelectric revolving resonator and ultrasonic motor 失效
标题翻译：压电式旋转谐振器和超声波电机
公开(公告)号：US4868446A
公开(公告)日：1989-09-19
申请号：US174413
申请日：1988-03-28
申请人： Akio Kumada
发明人： Akio Kumada
IPC分类号： H01L41/09 , H02N2/16
CPC分类号： H02N2/026 , H02N2/002 , H02N2/103 , H02N2/105
摘要： A piezoelectric revolving resonator comprising a circular or cylindrical transducer element, in which the center of gravity of the resonator revolves eccentrically around the center of an original circle as a result of resonance thereof upon excitation of the 1st order resonance frequency. Also, the ultrasonic motor is disclosed comprising a resonator of gravity center revolution type with the center of gravity thereof revolving in reversibly clockwise or counterclockwise direction and a rotor pressure fitted on the resonator, the motor utilizing the rotational torque received by the motor through a frictional force.
摘要翻译：一种包括圆形或圆柱形换能器元件的压电旋转谐振器，其中由于在一阶谐振频率的激励下谐振，谐振器的重心围绕原圆的中心偏心旋转。此外，公开了一种超声波马达，其包括重心为中心的谐振器，其重心以可逆的顺时针或逆时针方向旋转，并且转子压力安装在谐振器上，该马达利用马达接收的转矩通过摩擦力。

7. 发明授权

US4663556A Torsional mode ultrasonic vibrator 失效
标题翻译：扭转模式超声波振动器
公开(公告)号：US4663556A
公开(公告)日：1987-05-05
申请号：US688947
申请日：1985-01-04
申请人： Akio Kumada
发明人： Akio Kumada
IPC分类号： H01L41/09 , H02N2/12 , H01L41/08
CPC分类号： H02N2/123 , H02N2/0045 , H02N2/103
摘要： A torsional mode ultrasonic vibrator is formed by integrally combining a piezoelectric thickness vibrating element and a cylindrical torsional mode resonator. Furthermore, a torsional mode piezoelectric motor is provided in such a manner that a rotor and a stator are pressed to each other so that a rotational torque can be generated by the vibration at the contacting surfaces therebetween and a piezoelectric thickness vibrator and a torsional mode ultrasonic vibrator formed by an integral combination of a torsion coupler and a torsional mode ultrasonic resonator are used as the source of the ultrasonic vibration.
摘要翻译：通过整体地组合压电厚度振动元件和圆柱形扭转模式谐振器来形成扭转模式超声波振动器。此外，扭矩模式压电电动机以这样的方式设置，使得转子和定子彼此压紧，使得通过其间的接触表面处的振动产生旋转扭矩，并且压电厚度振动器和扭转模式超声波使用由扭转耦合器和扭转模式超声波谐振器的整体组合形成的振动器作为超声波振动源。

8. 发明授权

US4642509A Ultrasonic motor using bending, longitudinal and torsional vibrations 失效
标题翻译：超声波电机采用弯曲，纵向和扭转振动
公开(公告)号：US4642509A
公开(公告)日：1987-02-10
申请号：US831578
申请日：1986-02-21
申请人： Akio Kumada
发明人： Akio Kumada
IPC分类号： H01L41/09 , H02N2/12 , H01L41/08
CPC分类号： H02N2/0045 , H02N2/103
摘要： An ultrasonic motor having a cantilever type longitudinal/torsional vibration coupling element with a beam and a rotor rotated by the vibration of the beam. The rotor is provided with contacting surface for only contacting the beam in the outer peripheral portion of the surface of the beam away from the torsional vibration axis of the beam.
摘要翻译：一种具有悬臂式纵向/扭转振动耦合元件的超声波马达，其具有梁和由梁的振动旋转的转子。转子设置有接触表面，用于仅使梁的表面的外周部分中的梁远离梁的扭转振动轴线接触。

9. 发明授权

US4471258A Piezoelectric ceramic transducer 失效
标题翻译：压电陶瓷传感器
公开(公告)号：US4471258A
公开(公告)日：1984-09-11
申请号：US319312
申请日：1981-11-09
申请人： Akio Kumada
发明人： Akio Kumada
IPC分类号： H04R17/00 , H04R17/08
CPC分类号： H04R17/00 , H04R17/08
摘要： In a transducer including at least a piezoelectric ceramic plate which has curved surfaces, electrodes which are formed on both the main surfaces of the piezoelectric ceramic plate, a frame which holds the piezoelectric ceramic plate, and means for applying an electric signal to the electrodes; this invention is characterized in that the holding frame is made of an organic high-polymer resin. Since the piezoelectric ceramic plate has the curved surfaces and the holding frame is made of the organic high-polymer resin, the transducer is suitable as a loudspeaker for audio use having a wide frequency band.
摘要翻译：在至少具有弯曲表面的压电陶瓷板的换能器中，形成在压电陶瓷板的两个主表面上的电极，保持压电陶瓷板的框架和用于向电极施加电信号的装置; 本发明的特征在于，保持框架由有机高分子树脂制成。由于压电陶瓷板具有弯曲表面，并且保持框架由有机高分子树脂制成，因此该换能器适用于具有宽频带的用于音频的扬声器。

10. 再颁专利

USRE28971E Light modulator element 失效
标题翻译：光调制元件
公开(公告)号：USRE28971E
公开(公告)日：1976-09-21
申请号：US218567
申请日：1972-01-17
申请人： Akio Kumada , Keiichiro Aizu , Yoshio Furuhata
发明人： Akio Kumada , Keiichiro Aizu , Yoshio Furuhata
IPC分类号： G02F1/05 , H01G7/02
CPC分类号： G02F1/05 , H01G7/025
摘要： A device for modulating and a nondestructive readout storage device employing modulation of light transmitted through an irregular ferroelectric crystal before and after the rotation of the vibration plane thereof caused by an applied electric field equal to or larger than the coercive field thereof.

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