公开(公告)号：US07759840B2

公开(公告)日：2010-07-20

申请号：US11890121

申请日：2007-08-03

申请人： Tomoki Funakubo ,  Nagahide Sakai ,  Junji Okada

发明人： Tomoki Funakubo ,  Nagahide Sakai ,  Junji Okada

IPC分类号： H01L41/047 ,  H01L41/09 ,  H02N2/04

CPC分类号： H02N2/026 ,  H01L41/0471 ,  H01L41/083 ,  H01L41/0913 ,  H02N2/004 ,  H02N2/06

摘要： When a piezoelectric ceramic sheet is divided into two equal parts in a longitudinal direction and two equal parts in a width direction to form four regions, internal electrodes are disposed over each region and are disposed so that surface areas occupied in each region are substantially the same, and a longitudinal vibration is detected based on a potential difference between the internal electrodes.

摘要翻译： 当将压电陶瓷片在长度方向上分成两等份并在宽度方向上分成两等份形成四个区时，在每个区域上设置内部电极，并且设置成每个区域中占有的表面积基本相同 并且基于内部电极之间的电位差来检测纵向振动。

公开(公告)号：US20080036333A1

公开(公告)日：2008-02-14

申请号：US11890121

申请日：2007-08-03

申请人： Tomoki Funakubo ,  Nagahide Sakai ,  Junji Okada

发明人： Tomoki Funakubo ,  Nagahide Sakai ,  Junji Okada

IPC分类号： H02N2/00

CPC分类号： H02N2/026 ,  H01L41/0471 ,  H01L41/083 ,  H01L41/0913 ,  H02N2/004 ,  H02N2/06

摘要： When a piezoelectric ceramic sheet is divided into two equal parts in a longitudinal direction and two equal parts in a width direction to form four regions, internal electrodes are disposed over each region and are disposed so that surface areas occupied in each region are substantially the same, and a longitudinal vibration is detected based on a potential difference between the internal electrodes.

摘要翻译： 当将压电陶瓷片在长度方向上分成两等份并在宽度方向上分成两等份形成四个区时，在每个区域上设置内部电极，并且设置成每个区域中占有的表面积基本相同 并且基于内部电极之间的电位差来检测纵向振动。

公开(公告)号：US07923900B2

公开(公告)日：2011-04-12

申请号：US12640392

申请日：2009-12-17

申请人： Nagahide Sakai ,  Hiromichi Sakano ,  Tomoki Funakubo ,  Morimiti Simizu

发明人： Nagahide Sakai ,  Hiromichi Sakano ,  Tomoki Funakubo ,  Morimiti Simizu

IPC分类号： H02N2/00

CPC分类号： H01L41/0471 ,  H01L41/0913 ,  H02N2/004 ,  H02N2/0085 ,  H02N2/026

摘要： An ultrasonic motor, which drives a driven member using an elliptical vibration produced by synthesizing a longitudinal vibrational mode and a flexural vibrational mode as a drive force, is configured as follows. Namely, the ultrasonic motor includes a piezoelectric device, and a feed member feeding the piezoelectric device. An extensional axis of the feed member is set to an axis different from main vibrational axes of the longitudinal vibrational mode and the flexural vibrational mode.

摘要翻译： 使用通过合成纵向振动模式和弯曲振动模式作为驱动力产生的椭圆振动来驱动从动构件的超声波马达被配置如下。 也就是说，超声波马达包括压电装置和馈送压电装置的馈送构件。 进给构件的延伸轴被设定为与纵向振动模式和弯曲振动模式的主振动轴不同的轴。

公开(公告)号：US20050258711A1

公开(公告)日：2005-11-24

申请号：US11124715

申请日：2005-05-09

申请人： Tomoki Funakubo

发明人： Tomoki Funakubo

IPC分类号： B06B1/06 ,  H01L41/083 ,  H01L41/09 ,  H02N2/00

CPC分类号： H01L41/0913 ,  H01L41/083 ,  H02N2/0055 ,  H02N2/026

摘要： An ultrasonic vibrator includes a piezoelectric laminated-section; a frictional contact-section serving as a driving point upon coming into contact with a moving-table serving as a driven body; and a pin serving as a projection and disposed at a node of a generated vibration. When alternating voltages are applied on external electrodes of the piezoelectric laminated-section, an ultrasonic elliptical vibration is generated at the frictional contact-section. The pin is composed of a resin member such as polyether-ether-ketone.

摘要翻译： 超声波振子包括：压电层叠部; 与用作被驱动体的移动台接触的用作驱动点的摩擦接触部分; 以及用作突起并设置在产生的振动的节点处的销。 当在压电层叠部分的外部电极上施加交流电压时，在摩擦接触部分产生超声波椭圆振动。 针由聚醚醚酮等树脂构成。

公开(公告)号：US07205703B2

公开(公告)日：2007-04-17

申请号：US10941732

申请日：2004-09-15

申请人： Tomoki Funakubo ,  Heiji Ogino

发明人： Tomoki Funakubo ,  Heiji Ogino

IPC分类号： H01L41/08

CPC分类号： H01L41/0913 ,  H01L41/083 ,  H02N2/026

摘要： In an ultrasonic vibrator in which ultrasonic elliptical vibration is caused at a friction-projection by the simultaneous generation of a first vibration mode and a second vibration mode in a piezoelectric element, the friction-projection is formed by burning so as to be integrated with the piezoelectric element.

摘要翻译： 在通过在压电元件中同时产生第一振动模式和第二振动模式而在摩擦突起处产生超声波椭圆振动的超声波振动器中，通过燃烧形成摩擦突起，以便与 压电元件

公开(公告)号：US20060238072A1

公开(公告)日：2006-10-26

申请号：US11409439

申请日：2006-04-21

申请人： Tomoki Funakubo

发明人： Tomoki Funakubo

IPC分类号： H02N2/00

CPC分类号： H02N2/026 ,  H01L41/083 ,  H01L41/0913 ,  H02N2/004

摘要： With the invention, both a longitudinal vibration mode and a flexural vibration mode are independently detected, or only the longitudinal vibration mode is detected, without using a special device. The invention provides an ultrasonic motor including electromechanical transducers for driving, electromechanical transducers for vibration detection, and an ultrasonic vibrator in which, by supplying two-phase alternating voltages with a predetermined phase difference and predetermined driving frequency to the electromechanical transducers for driving, two different vibration modes are simultaneously generated to produce a substantially elliptical vibration at an output. It is possible to independently detect both the longitudinal vibration mode and the flexural vibration mode with the electromechanical transducers for vibration detection.

公开(公告)号：US4320956A

公开(公告)日：1982-03-23

申请号：US128563

申请日：1980-03-10

申请人： Masaji Nishikawa ,  Muneo Kasuga ,  Tomoki Funakubo

发明人： Masaji Nishikawa ,  Muneo Kasuga ,  Tomoki Funakubo

IPC分类号： G03G15/00 ,  G03G15/02 ,  G03G15/30 ,  G03G21/00

CPC分类号： G03G15/30 ,  G03G15/0275

摘要： An electrophotographic apparatus comprising a corona charger, a photosensitive and electrostatic-charge retentive drum including an electrically conductive substrate and a photosensitive layer having a narrower width than that of a record paper, and a screening member inserted between the corona charger and a peripheral part of the photosensitive and electrostatic-charge-retentive member for gradually decreasing a quantity of electrostatic charge charged at side edge portions of the photosensitive layer in a direction toward the side edges of the photosensitive layer, whereby black line and stripe can be prevented from appearing along the side edges of the record paper.

摘要翻译： 一种电子照相设备，包括电晕充电器，感光和静电充电保持性鼓，其包括导电基底和具有比记录纸窄的宽度的感光层，以及插入电晕充电器和周围部分之间的屏蔽元件 感光和静电电荷保持部件，用于逐渐减小在感光层的侧边缘的方向上在感光层的侧边缘部分充电的静电荷量，从而可以防止沿着感光层的侧边缘出现黑线和条纹 记录纸的侧边缘。

公开(公告)号：US20090256446A1

公开(公告)日：2009-10-15

申请号：US12419519

申请日：2009-04-07

申请人： Tomoki Funakubo

发明人： Tomoki Funakubo

IPC分类号： H02N2/12

CPC分类号： H02N2/106 ,  H01L41/0471 ,  H01L41/0472 ,  H01L41/0825 ,  H01L41/083 ,  H02N2/0045

摘要： An ultrasonic motor, which rotates a rotor by elastic movement generated by simultaneously exciting vertical oscillation and twisted oscillation in an ultrasonic oscillator, by using expanding and contracting oscillations of a multilayer piezoelectric element formed by laminating two kinds of piezoelectric sheet, is configured as follows. Namely, the multilayer piezoelectric element is formed by alternately laminating a first piezoelectric sheet and a second piezoelectric sheet. The first piezoelectric sheet is provided with a first internal electrode, which is divided into two or more parts, and each divided part is exposed to a peripheral edge of the piezoelectric sheet. The second piezoelectric sheet is provided with an internal electrode, which has a polarity reverse to the first internal electrode, and is divided into two or more parts, and each divided part is exposed to a peripheral edge of the piezoelectric sheet.

摘要翻译： 通过利用通过层叠两种压电片形成的层叠型压电元件的扩展和收缩振荡，通过在超声波振荡器中同时激发垂直振荡和扭曲振荡而产生的弹性运动使转子旋转的超声波马达被配置如下。 也就是说，通过交替层叠第一压电片和第二压电片形成层叠型压电元件。 第一压电片设置有被分成两部分或更多部分的第一内部电极，并且每个分割部分暴露于压电片的周缘。 第二压电片设置有与第一内部电极相反的极性的内部电极，并且被分成两部分以上，并且每个分割部分暴露于压电片的周缘。

公开(公告)号：US07053525B2

公开(公告)日：2006-05-30

申请号：US10403129

申请日：2003-03-31

申请人： Tomoki Funakubo ,  Yasuo Sasaki ,  Kiyoshi Tosaka ,  Heiji Ogino ,  Takashi Kawashima ,  Toshihiro Nakao

发明人： Tomoki Funakubo ,  Yasuo Sasaki ,  Kiyoshi Tosaka ,  Heiji Ogino ,  Takashi Kawashima ,  Toshihiro Nakao

IPC分类号： H01L41/04

CPC分类号： H02N2/026 ,  H01L41/083 ,  H01L41/0913

摘要： An ultrasonic linear motor according to the present invention has a configuration wherein driving elements are glued at portions on faces of an ultrasonic transducer, facing one another, where rotational directions of elliptic vibrations generated on the faces are reverse one to another, a pair of guides are provided for being pressed into against the driving elements so as to hold the ultrasonic transducer therebetween, and leaf springs serving as pressing part are provided so as to narrow a spacing between the one pair of guides, whereby the ultrasonic transducer is configured as an self-moving ultrasonic linear motor which can drive by itself. Thus, driving properties of the ultrasonic transducer itself is improved, and also the size of the ultrasonic linear motor can be reduced.

公开(公告)号：US20060061235A1

公开(公告)日：2006-03-23

申请号：US11222600

申请日：2005-09-09

申请人： Tomoki Funakubo

发明人： Tomoki Funakubo

IPC分类号： H02N2/00

CPC分类号： H02N2/0055 ,  H01L41/083 ,  H01L41/0913 ,  H02N2/004 ,  H02N2/026 ,  H02N2/103

摘要： An ultrasonic motor capable of simultaneously generating a plurality of vibration modes efficiently generates each vibration mode so as to stably obtain high motor power. The ultrasonic motor an ultrasonic vibrator and a pressing unit. The ultrasonic vibrator includes an electromechanical converting element that generates a substantially elliptic vibration at an output end of the ultrasonic vibrator by simultaneously generating two different vibration modes by applying a first alternating-current voltage of a first phase and a second alternating-current voltage of a second phase to the electromechanical converting elements, wherein the first and second alternating-current voltages have a predetermined phase difference and predetermined driving frequencies. The pressing unit is configured to press the output end of the ultrasonic vibrator against a driven body. The output end of the ultrasonic vibrator is pressed against the driven body by a pressing force that causes mechanical resonant frequencies in the two different vibration modes to substantially match each other.

摘要翻译： 能够同时产生多个振动模式的超声波马达有效地产生每个振动模式，从而稳定地获得高的马达功率。 超声波电动机是超声波振子和按压单元。 超声波振子包括机电转换元件，该机电转换元件通过同时产生两种不同的振动模式，通过施加第一相和第二交流电压的第一交流电压，在超声波振动器的输出端产生大致椭圆振动 第二相到机电转换元件，其中第一和第二交流电压具有预定的相位差和预定的驱动频率。 按压单元构造成将超声波振动器的输出端压靠在被驱动体上。 超声波振动器的输出端通过使两种不同振动模式中的机械共振频率彼此基本匹配的按压力而被压靠在被驱动体上。