专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

11. 发明授权

US6084336A Piezoelectric transformer 失效
标题翻译：压电变压器
公开(公告)号：US6084336A
公开(公告)日：2000-07-04
申请号：US154737
申请日：1998-09-17
申请人： Osamu Kawasaki , Katsunori Moritoki , Hiroshi Nakatsuka
发明人： Osamu Kawasaki , Katsunori Moritoki , Hiroshi Nakatsuka
IPC分类号： H01L41/107
CPC分类号： H01L41/107
摘要： A piezoelectric transformer has;a rectangular plate having a principal direction coinciding with a longitudinal direction or a lateral direction, said plate being made of a piezoelectric material;one set of primary electrodes which are formed on faces of said rectangular plate, respectively, said faces being opposed to each other in a thickness direction; andone set of secondary electrodes which are formed on said rectangular plate, whereinat least one of said primary electrodes covers a center portion of said rectangular plate with respect to said principal direction, and is disposed so as not to overlap with end portions of said rectangular plate with respect to said principal direction,each of said secondary electrodes consists of a single electrode member, andan AC voltage applied between said primary electrodes causes said rectangular plate to produce such a mechanical vibration of a half wave length that said rectangular plate expands and contracts in said principal direction, thereby outputting a voltage from said secondary electrodes.
摘要翻译：压电变压器有; 具有与长度方向或横向一致的主方向的矩形板，所述板由压电材料制成; 分别形成在所述矩形板的表面上的一组初级电极，所述面在厚度方向上彼此相对; 以及形成在所述矩形板上的一组二次电极，其中所述主电极中的至少一个相对于所述主方向覆盖所述矩形板的中心部分，并且被设置成不与所述矩形板的端部重叠相对于所述主方向的矩形板，每个所述次级电极由单个电极构件组成，并且施加在所述主电极之间的AC电压使所述矩形板产生半波长的机械振动，所述矩形板膨胀并沿所述主方向收缩，由此从所述次级电极输出电压。

12. 发明授权

US06794796B2 Piezoelectric transformer, piezoelectric transformer drive circuit, piezoelectric transformer drive method and cold cathode tube drive apparatus using piezoelectric transformer 失效
标题翻译：压电变压器，压电变压器驱动电路，压电变压器驱动方法和使用压电变压器的冷阴极管驱动装置
公开(公告)号：US06794796B2
公开(公告)日：2004-09-21
申请号：US10338754
申请日：2003-01-09
申请人： Hiroshi Nakatsuka , Katsunori Moritoki , Toshiyuki Asahi , Kojiro Okuyama , Osamu Kawasaki
发明人： Hiroshi Nakatsuka , Katsunori Moritoki , Toshiyuki Asahi , Kojiro Okuyama , Osamu Kawasaki
IPC分类号： H01L4108
CPC分类号： H01L41/107 , H01L41/044 , H05B41/2822 , H05B41/2855 , H05B41/3925
摘要： The piezoelectric transformer of the present invention has a piezoelectric element 109 mainly formed of a piezoelectric material, primary electrodes 101U and 101D which are formed on the piezoelectric element 109 and to which a voltage is applied, a secondary electrode 102 which is formed on the piezoelectric element 109 and from which a voltage higher than the voltage applied to the primary electrode is output, and a sensor electrode 103 which is formed on the piezoelectric element 109 and from which a voltage lower than the output voltage of the secondary electrode is output.
摘要翻译：本发明的压电变压器具有主要由压电材料形成的压电元件109，形成在压电元件109上并施加有电压的初级电极101U和101D，形成在压电元件上的二次电极102 输出比施加到初级电极的电压高的电压，并且形成在压电元件109上并且从其输出低于次级电极的输出电压的电压的传感器电极103。

13. 发明授权

US06737816B2 Piezoelectric transformer, piezoelectric transformer drive circuit, piezoelectric transformer drive method and cold cathode tube drive apparatus using piezoelectric transformer 失效
公开(公告)号：US06737816B2
公开(公告)日：2004-05-18
申请号：US09852621
申请日：2001-05-11
申请人： Hiroshi Nakatsuka , Katsunori Moritoki , Toshiyuki Asahi , Kojiro Okuyama , Osamu Kawasaki
发明人： Hiroshi Nakatsuka , Katsunori Moritoki , Toshiyuki Asahi , Kojiro Okuyama , Osamu Kawasaki
IPC分类号： G05F100
CPC分类号： H01L41/107 , H01L41/044 , H05B41/2822 , H05B41/2855 , H05B41/3925
摘要： The piezoelectric transformer of the present invention has a piezoelectric element 109 mainly formed of a piezoelectric material, primary electrodes 101U and 101D which are formed on the piezoelectric element 109 and to which a voltage is applied, a secondary electrode 102 which is formed on the piezoelectric element 109 and from which a voltage higher than the voltage applied to the primary electrode is output, and a sensor electrode 103 which is formed on the piezoelectric element 109 and from which a voltage lower than the output voltage of the secondary electrode is output.

14. 发明授权

US4829209A Ultrasonic motor with stator projections and at least two concentric rings of electrodes 失效
标题翻译：具有定子突起和至少两个电极同心环的超声波马达
公开(公告)号：US4829209A
公开(公告)日：1989-05-09
申请号：US126105
申请日：1987-11-20
申请人： Osamu Kawasaki , Ritsuo Inaba , Akira Tokushima , Katsu Takeda
发明人： Osamu Kawasaki , Ritsuo Inaba , Akira Tokushima , Katsu Takeda
IPC分类号： H01L41/09 , H02N2/00 , H02N2/16
CPC分类号： H02N2/166
摘要： In an ultrasonic motor wherein an elastic travelling wave is excited in a vibrating stator comprising a piezoelectric element and an elastic element thereby to drive and a rotor which is disposed to touch the vibrating stator with pressure by friction forces, an ultrasonic motor having high efficiency is obtained. In the present invention, the above-mentioned vibrating stator is substantially disk-type, electrodes being provided to the piezoelectric element are disposed in a form of two sets of concentric circles having different phases with respect to each other in a circumferential direction in which the vibration is travelling, and have a constitution which excites the vibrating stator by flexural vibration modes of second order or higher in a radial direction and of third order or higher in the circumferential direction, and also, are designed so that at least mechanical impedances seen from each electrode become equal. By superimposing standing waves of the flexural vibration which are excited by those two sets of electrodes, the flexural vibration is made to travel in the circumferential direction, thereby to obtain a driving force.

15. 发明授权

US5448129A Ultrasonic motor with vibrating body and moving body driven thereby 失效
标题翻译：具有振动体和移动体的超声波电机由此驱动
公开(公告)号：US5448129A
公开(公告)日：1995-09-05
申请号：US261245
申请日：1994-06-14
申请人： Masanori Sumihara , Katsu Takeda , Takahiro Nishikura , Osamu Kawasaki
发明人： Masanori Sumihara , Katsu Takeda , Takahiro Nishikura , Osamu Kawasaki
IPC分类号： H01L41/09 , H02N2/16 , H02N2/00
CPC分类号： H02N2/163 , H02N2/0065 , H02N2/007
摘要： An ultrasonic motor which achieves uniform contact between the vibrating body and the moving body and features high output transfer efficiency and high reliability, and by which the manufacturing process for the moving body thereof can be simplified and the moving body made lighter.By comprising the moving body of a carbon fiber reinforced resin composite material reinforced by at least carbon fiber, and constructing the moving body with a both-side supported or single-side supported beam construction, elasticity according to the pressure of the ultrasonic motor can be imparted in the direction of pressure of the moving body. Thus, the undulations in the contact surface of the vibrating body and the moving body can be absorbed and stable, uniform contact can be assured, and long-term maintenance of a stable friction condition can be achieved.
摘要翻译：一种实现振动体与移动体均匀接触的超声波马达，具有输出转印效率高，可靠性高，可以简化移动体的制造工序，使移动体变轻。通过将由至少碳纤维增强的碳纤维增强树脂复合材料的移动体构成，并且通过双侧支撑或单侧支撑梁结构构造移动体，根据超声波马达的压力可以具有弹性在移动体的压力方向上施加。因此，振动体和移动体的接触面的波动可以被吸收稳定，可以保证均匀的接触，并且可以实现稳定的摩擦条件的长期维持。

16. 发明授权

US06243933B1 Piezoelectric resonator and method for fabricating the same 有权
标题翻译：压电谐振器及其制造方法
公开(公告)号：US06243933B1
公开(公告)日：2001-06-12
申请号：US09303682
申请日：1999-05-03
申请人： Masato Sugimoto , Katsu Takeda , Yoshihiro Tomita , Osamu Kawasaki
发明人： Masato Sugimoto , Katsu Takeda , Yoshihiro Tomita , Osamu Kawasaki
IPC分类号： H04R1700
CPC分类号： H03H9/177 , H03H3/04 , H03H9/02031 , H03H9/0207 , H03H9/176 , Y10T29/42 , Y10T29/49004
摘要： A wafer with a reversed domain is prepared for two piezoelectric single crystal plates and of about the same thickness by using direct bonding without any adhesive. Driving electrodes are formed on two principal planes of the wafer with a reversed domain to provide a piezoelectric resonator. A piezoelectric resonator having the structure with a reversed polarization and using odd-order vibration modes vibrating with a fundamental wave has a wavelength of a thickness thereof and suppresses scattering of the thickness of the domains with a reversed polarization. In the direct bonding, the axes of the spontaneous polarization of the two piezoelectric single crystal plates are reverse to each other and crystalline axes other than the axes of polarization are shifted intentionally by an angle other than zero. Thus, spurious modes are suppressed in a simple way.
摘要翻译：对于两个压电单晶板制备具有反向畴的晶片，并且通过直接接合而没有任何粘合剂制备大约相同的厚度。在晶片的两个主平面上形成驱动电极，具有反向的畴，以提供压电谐振器。具有反极化结构和使用基波振荡的奇数振动模式的压电谐振器具有其厚度的波长，并且抑制具有反向偏振的畴的厚度的散射。在直接接合中，两个压电单晶板的自发极化的轴线彼此相反，并且除偏振轴之外的结晶轴有意地以不同于零的角度移动。因此，以简单的方式抑制杂散模式。

17. 发明授权

US5929555A Piezoelectric resonator and method for fabricating the same 失效
标题翻译：压电谐振器及其制造方法
公开(公告)号：US5929555A
公开(公告)日：1999-07-27
申请号：US834207
申请日：1997-04-15
申请人： Masato Sugimoto , Katsu Takeda , Yoshihiro Tomita , Osamu Kawasaki
发明人： Masato Sugimoto , Katsu Takeda , Yoshihiro Tomita , Osamu Kawasaki
IPC分类号： H03H3/04 , H03H9/02 , H03H9/17 , H03H9/56 , H01L41/08
CPC分类号： H03H9/177 , H03H3/04 , H03H9/02031 , H03H9/0207 , H03H9/176 , Y10T29/42 , Y10T29/49004
摘要： A wafer with a reversed domain is prepared for two piezoelectric single crystal plates 11 and 12 having about the same thickness as each other by using direct bonding without any adhesive. Then, driving electrodes 13 are formed on two principal planes of the wafer with a reversed domain to provide a piezoelectric resonator. A piezoelectric resonator having the structure with a reverses polarization and using odd-order vibration modes vibrating with a fundamental wave has a wavelength of a thickness thereof suppresses scattering of the thickness of the domains with a reversed polarization. In the direct bonding, the axes of the spontaneous polarization of the two piezoelectric single crystal plates are reverse to each other and crystalline axes other than the axes of polarization are shifted intentionally by an angle other than zero. Thus, spurious modes are suppressed in a simple way.
摘要翻译：通过使用没有任何粘合剂的直接粘合，为具有彼此具有大致相同厚度的两个压电单晶板11和12制备具有反向畴的晶片。然后，驱动电极13形成在具有反向域的晶片的两个主平面上，以提供压电谐振器。具有反转偏振结构和使用基波振荡的奇数振动模式的压电谐振器具有其厚度的波长，抑制具有反向偏振的畴的厚度的散射。在直接接合中，两个压电单晶板的自发极化的轴线彼此相反，并且除偏振轴之外的结晶轴有意地以不同于零的角度移动。因此，以简单的方式抑制杂散模式。

18. 发明授权

US5408156A Ultrasonic motor 失效
标题翻译：超声波电机
公开(公告)号：US5408156A
公开(公告)日：1995-04-18
申请号：US894144
申请日：1990-04-23
申请人： Osamu Kawasaki , Takahiro Nishikura , Katsu Takeda
发明人： Osamu Kawasaki , Takahiro Nishikura , Katsu Takeda
IPC分类号： H02N2/00 , H01L41/09 , H02N2/16 , H01L41/08
CPC分类号： H02N2/163 , H02N2/166
摘要： In an ultrasonic motor having a rotor (6,12) and a vibrating stator (43,49) wherein travelling wave is excited to drive the rotor, the vibrating stator comprises a piezoelectric member (25,26,29,60) and alternately-disposed first segment electrodes and second segment electrodes, the first segment electrodes being connected with each other to form a first intermittent ring or linear electrode train and the second segment electrodes being connected with each other to form a second intermittent ring or linear electrode train, each of the segment electrodes having a length of a quarter of wavelength of the travelling wave in the direction of the travelling wave and being to be polarized in an opposite direction to adjacent electrodes within the same segment electrode.
摘要翻译：在具有转子（6,12）和振动定子（43,49）的超声波马达中，其中行波被激励以驱动转子，所述振动定子包括压电元件（25,26,29,60）设置第一段电极和第二段电极，第一段电极彼此连接以形成第一间歇环或线性电极列，并且第二段电极彼此连接以形成第二间断环或线性电极列，每个的行电极的长度为行波的波长的四分之一的行电极的方向，并且在与相同的段电极内的相邻电极相反的方向上极化。

19. 发明授权

US5256928A Ultrasonic motor with a vibrator having recesses 失效
标题翻译：具有振动器的超声波马达具有凹槽
公开(公告)号：US5256928A
公开(公告)日：1993-10-26
申请号：US783192
申请日：1991-10-28
申请人： Takahiro Nishikura , Katsu Takeda , Masanori Sumihara , Osamu Kawasaki
发明人： Takahiro Nishikura , Katsu Takeda , Masanori Sumihara , Osamu Kawasaki
IPC分类号： H01L41/09 , H02N2/16 , H01L41/08
CPC分类号： H02N2/166 , H02N2/0065 , H02N2/163
摘要： An ultrasonic motor has a circular vibrator and a mover which is pressed into contact with the circular vibrator. A circular elastic member which constitutes the circular vibrator has a uniform thickness along a circumferential direction thereof, and has a plurality of recesses on a face of the circular elastic member opposing the mover. According to the above structure, uniform elastic travelling waves are generated in the circular elastic member of the vibrator, and a uniform contact is attained between the vibrator and the mover, and yet the development of cracks at bottoms of the recesses is prevented. A ring-like recess is provided on another elastic member which constitutes the mover.
摘要翻译：超声波马达具有圆形振动器和与圆形振动器接触的动子。构成圆形振动器的圆形弹性构件沿其圆周方向具有均匀的厚度，并且在圆形弹性构件的与移动体相对的表面上具有多个凹部。根据上述结构，在振动器的圆形弹性构件中产生均匀的弹性行波，并且在振动器和移动体之间达到均匀的接触，并且防止了凹部底部的裂缝的发展。构成动子的另一弹性构件上设有环状的凹部。

20. 发明授权

US5457351A Ultrasonic motor 失效
标题翻译：超声波电机
公开(公告)号：US5457351A
公开(公告)日：1995-10-10
申请号：US200002
申请日：1994-02-22
申请人： Takahiro Nishikura , Katsu Takeda , Masanori Sumihara , Osamu Kawasaki
发明人： Takahiro Nishikura , Katsu Takeda , Masanori Sumihara , Osamu Kawasaki
IPC分类号： H01L41/09 , H02N2/16 , H01L41/08
CPC分类号： H02N2/166
摘要： A position where the projection member is disposed is optimized by the product of a vibration displacement distribution of a vibration member composed of an elastic member for exciting the primary elastic progressive waves or more in the radial direction and the tertiary elastic progressive waves or more in the peripheral direction, and a generation force distribution of a vibration member to be caused in accordance with the pressure force so that the motor output is made larger. The construction is optional in accordance with the necessary characteristics, and the characteristics are superior by the shape of the supporting means of the vibrating member and the vibration member, thus providing an ultrasonic motor of higher stability.
摘要翻译：通过由用于激发初级弹性渐进波的弹性部件或径向的弹性部件构成的振动部件的振动位移分布和三次弹性渐进波以上的三次弹性渐进波或更多的弹性部件的振动位移分布，使突出部件配置的位置最优化圆周方向和根据压力引起的振动构件的产生力分布，使得电动机输出变大。该结构根据必要的特性是可选的，其特征是通过振动部件和振动部件的支撑装置的形状优越，从而提供了具有更高稳定性的超声波马达。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式