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1. 发明授权

US5032753A Piezoelectric transducer and an ultrasonic motor using the piezoelectric transducer 失效
标题翻译：压电传感器和使用压电传感器的超声波电机
公开(公告)号：US5032753A
公开(公告)日：1991-07-16
申请号：US485557
申请日：1990-02-27
申请人： Masaki Yamaguchi , Shoji Yamada , Naoto Iwao
发明人： Masaki Yamaguchi , Shoji Yamada , Naoto Iwao
IPC分类号： H01L41/04 , H01L41/09 , H02N2/16
CPC分类号： H02N2/004 , H02N2/001 , H02N2/008 , H02N2/026 , H02N2/103
摘要： In the piezoelectric transducer, the elastic member vibrates, being excited by the first electromechanical transducing element. The impedance element on the second electromechanical transducing element is adjusted so that the vibration frequency and the resonance frequency of the elastic member should be almost the same. In the ultrasonic motor using the piezoelectric transducer, the vibration having the same frequency as that of the vibration of the elastic member is applied to the elastic member. This applied vibration has a direction differnt from that of the viration of the elastic member. The applied vibration and the vibration of the elastic member form approximate elliptical vibration, thereby rotating the rotor. The piezoelectric transducer of variable structure can control the resonance frequency in a wide range without electric power. The piezoelectric transducer can efficiently transduce applied electricity into approximate elliptical vibration of the elastic member, thereby generating great mechanical drive power. The electromechanical transducing element and the impedance element can compose a simple and compact vibration control unit. Since the electromechanical transcuding element and the impedance element form a closed circuit consuming no electric power, no power source circuit is required. The vibration control unit adjusts the resonance characteristic of the closed circuit, thus quantitatively controlling the frequency distribution and the amplitude of the mechanical vibration.
摘要翻译：在压电换能器中，弹性构件由第一机电换能元件激励。调整第二机电换能元件上的阻抗元件，使弹性部件的振动频率和共振频率几乎相同。在使用压电换能器的超声波马达中，与弹性部件的振动频率相同的振动施加到弹性部件。该施加的振动的方向与弹性构件的病毒方向不同。所施加的振动和弹性构件的振动形成近似的椭圆振动，从而旋转转子。可变结构的压电换能器可以在没有电力的情况下在宽范围内控制谐振频率。压电换能器可以有效地将施加的电力转换成弹性构件的近似椭圆振动，由此产生很大的机械驱动力。机电传感元件和阻抗元件可以组成一个简单紧凑的振动控制单元。由于机电转换元件和阻抗元件形成不消耗电力的闭路，因此不需要电源电路。振动控制单元调节闭路的谐振特性，从而定量地控制机械振动的频率分布和振幅。

2. 发明授权

US5293181A Image recording apparatus 失效
标题翻译：图像记录装置
公开(公告)号：US5293181A
公开(公告)日：1994-03-08
申请号：US783248
申请日：1991-10-28
申请人： Naoto Iwao , Shoji Yamada
发明人： Naoto Iwao , Shoji Yamada
IPC分类号： B41J2/385 , B41J2/415 , G03G15/05 , G03G15/34 , G03G17/00
CPC分类号： B41J2/4155 , G03G15/346
摘要： An image recording apparatus comprises an aperture electrode for modulating and regulating a flow of charged toner particles, and a vibrating device for vibrating the aperture electrode. The vibration generated by the vibrating device is a progressive wave transmitted in the aperture electrode. Since all of the apertures of the aperture electrode efficiently vibrate at a sufficient amplitude, adhesion of the toner particles to the aperture electrode is easily prevented.
摘要翻译：图像记录装置包括用于调制和调节带电调色剂颗粒的流动的孔径电极和用于振动孔径电极的振动装置。由振动装置产生的振动是在孔径电极中传播的行波。由于孔径电极的所有孔径都以足够的幅度有效振动，所以容易防止调色剂颗粒附着在孔电极上。

3. 发明授权

US5028832A Ultrasonic motor having anisotropic properties 失效
标题翻译：超声波电动机具有各向异性
公开(公告)号：US5028832A
公开(公告)日：1991-07-02
申请号：US512824
申请日：1990-04-23
申请人： Naoto Iwao , Shoji Yamada , Masaki Yamaguchi
发明人： Naoto Iwao , Shoji Yamada , Masaki Yamaguchi
IPC分类号： H02N2/00 , H01L41/09 , H02N2/14
CPC分类号： H02N2/004 , H02N2/007 , H02N2/026
摘要： An ultrasonic motor includes an anisotropic layer disposed between an ultrasonic vibrator and a movable member. The anisotropic layer is made of a composite material including plural components. The ratio of the modulus of transverse elasticity of the layer to the modulus of longitudinal elasticity of the layer in the pressing direction of the movable member is smaller than the corresponding ratio of moduli for each of the components.
摘要翻译：超声波马达包括设置在超声波振动器和可动部件之间的各向异性层。各向异性层由包括多个组分的复合材料制成。层的横向弹性模量与可动构件的按压方向上的层的纵向弹性模量的比例小于每个构件的相应的模量比。

4. 发明授权

US5469289A Light scanning device 失效
标题翻译：光扫描装置
公开(公告)号：US5469289A
公开(公告)日：1995-11-21
申请号：US253562
申请日：1994-06-03
申请人： Naoto Iwao , Shoji Yamada
发明人： Naoto Iwao , Shoji Yamada
IPC分类号： F16C32/04 , F16C39/06 , G02B26/12 , G02B26/08
CPC分类号： F16C32/0442 , F16C32/0457 , G02B26/121 , F16C2231/00
摘要： The rotational shaft 22 is provided with a pair of permanent magnets 31a and 31b, at its opposite ends. The bearing device 30 for the light scanning apparatus includes: a pair of electromagnets 32a and 32b; and a pair of voltage control circuits 33a and 33b. The electromagnet 32a is constructed from an iron core 321a provided with a coil 322a. Similarly, the electromagnet 32b is constructed from an iron core 321b provided with a coil 322b. When the rotational number increases to exceed a predetermined rotational number, the control signal generating circuit 53 switches the electric voltage applied through each of the coils 322a and 322b so as to switch the bearing stiffness of the bearing device. As a result, the resonant frequencies of the conical and cylindrical modes become much lower than the present actual rotational number .omega.0 of the rotational shaft. Accordingly, it is possible to prevent the rotational shaft from exhibiting any of the conical and cylindrical mode resonant actions.
摘要翻译：旋转轴22在其相对端设置有一对永磁体31a和31b。用于光扫描装置的轴承装置30包括：一对电磁体32a和32b; 和一对电压控制电路33a，33b。电磁体32a由具有线圈322a的铁芯321a构成。类似地，电磁体32b由设置有线圈322b的铁芯321b构成。当旋转数增加到超过预定旋转数时，控制信号发生电路53切换通过每个线圈322a和322b施加的电压，以便切换轴承装置的轴承刚度。结果，锥形和圆柱形模式的谐振频率变得远低于旋转轴的当前实际旋转数ω0。因此，可以防止旋转轴呈现任何锥形和圆柱形共振动作。

5. 发明授权

US5359361A Image forming apparatus for forming toner images 失效
标题翻译：用于形成调色剂图像的图像形成装置
公开(公告)号：US5359361A
公开(公告)日：1994-10-25
申请号：US994958
申请日：1992-12-22
申请人： Naoto Iwao , Shoji Yamada
发明人： Naoto Iwao , Shoji Yamada
IPC分类号： G03G15/34 , G03G17/00 , G01D15/06
CPC分类号： G03G15/346
摘要： In an image forming apparatus for forming a toner image on image recording medium, an aperture electrode is provided for modulating electrically charged toner particles to be applied on image recording medium to thereby form a toner image on the image recording medium. An oscillating device is provided on the aperture electrode for causing the aperture electrode to vibrate. The image forming apparatus is further provided with modulating device for modulating vibration properties of the vibration caused by the oscillating device. The modulating device modulates amplitude or frequency of the vibration.
摘要翻译：在用于在图像记录介质上形成调色剂图像的图像形成装置中，提供孔径电极用于调制要施加到图像记录介质上的带电调色剂颗粒，从而在图像记录介质上形成调色剂图像。在孔电极上设置振荡装置，使孔电极振动。图像形成装置还设置有用于调制由振荡装置引起的振动的振动特性的调制装置。调制装置调制振幅或振幅频率。

6. 发明授权

US07407255B2 Method of testing a droplet discharge device 有权
标题翻译：液滴放电装置的测试方法
公开(公告)号：US07407255B2
公开(公告)日：2008-08-05
申请号：US11277194
申请日：2006-03-22
申请人： Naoto Iwao , Shin Ishikura
发明人： Naoto Iwao , Shin Ishikura
IPC分类号： B41J29/393
CPC分类号： B41J29/393 , B41J2/04526 , B41J2/04558 , B41J2029/3935
摘要： A test sheet is set in a droplet discharge device at a first distance. At least one droplet is discharged toward the test sheet from a nozzle formed in the droplet discharge device to form at least one first dot on the test sheet. The test sheet is set in the droplet discharge device at a second distance differing from the first distance. At least one droplet is discharged toward the test sheet from the nozzle to form at least one second dot on the test sheet. A nozzle position error or a nozzle discharge angle error are calculated from the position of the first dot, the position of the second dot, the first distance, and the second distance. Testing inkjet heads in this manner allows accurate testing for errors in nozzle position or discharge angle.
摘要翻译：测试片在第一距离处设置在液滴喷射装置中。至少一个液滴从形成在液滴喷射装置中的喷嘴朝测试片排出，以在测试片上形成至少一个第一点。测试片在与第一距离不同的第二距离处设置在液滴喷射装置中。至少一个液滴从喷嘴朝向测试片材排出，以在测试片材上形成至少一个第二点。从第一点的位置，第二点的位置，第一距离和第二距离计算喷嘴位置误差或喷嘴排出角误差。以这种方式测试喷墨头可以精确测试喷嘴位置或排出角度的误差。

7. 发明授权

US07364247B2 Controller of ink jet head, control method of ink jet head, and ink jet record apparatus 有权
标题翻译：喷墨头的控制器，喷墨头的控制方法和喷墨记录装置
公开(公告)号：US07364247B2
公开(公告)日：2008-04-29
申请号：US11089028
申请日：2005-03-25
申请人： Naoto Iwao , Atsuo Sakaida , Ayumu Matsumoto
发明人： Naoto Iwao , Atsuo Sakaida , Ayumu Matsumoto
IPC分类号： B41J29/38
CPC分类号： B41J2/04596 , B41J2/04526 , B41J2/04581 , B41J2/04588 , B41J2002/14217 , B41J2002/14225 , B41J2002/14306 , B41J2002/14459 , B41J2202/20
摘要： A controller of an ink jet head includes a waveform information storage section for storing waveform patterns concerning a plurality of types of drive signals capable of making positions of dots formed on print paper by ejecting ink from nozzles different from each other with respect to a predetermined direction orthogonal to a relative moving direction between the print paper and the ink jet head. The controller further includes a waveform selection section for selecting one drive signal from among the plurality of drive signals stored in the waveform information storage section so that the same type of drive signal is not selected n or more successive times (where n is a natural number of two or more) for each nozzle.
摘要翻译：喷墨头的控制器包括波形信息存储部分，用于存储关于多种类型的驱动信号的波形图形，所述波形图案能够通过从相对于预定方向彼此不同的喷嘴喷射墨来形成在打印纸上形成的点的位置与打印纸和喷墨头之间的相对移动方向正交。控制器还包括波形选择部分，用于从存储在波形信息存储部分中的多个驱动信号中选择一个驱动信号，使得相同类型的驱动信号不被选择n次或更多个连续时间（其中n是自然数两个或更多个）。

8. 发明授权

US07083249B2 Method for establishing standard values to obscure banding in printed result of ink jet printer and ink jet printer set up by the same 有权
标题翻译：用于建立标准值以掩盖由其设置的喷墨打印机和喷墨打印机的打印结果中的条带的方法
公开(公告)号：US07083249B2
公开(公告)日：2006-08-01
申请号：US09962270
申请日：2001-09-26
申请人： Naoto Iwao
发明人： Naoto Iwao
IPC分类号： B41J29/393 , B41J29/38 , B41J2/165 , B41J23/00
CPC分类号： B41J2/2135
摘要： The invention relates to a method for setting a tolerance of each standard value, which is a factor in determination of ink droplets landing accuracy, to an ink jet printer that is set up using the method, by implementing a sensory test using printed results of an ink jet printer. With the tolerances set by the method, banding can be effectively obscured without significantly improving the mechanical precision of the ink jet printer. Particularly, when A1 is a deviation of a sheet feeding amount in the sub-scanning direction obtained by a dot line length of an average value of the sheet feeding amount in the sub-scanning direction from an ideal value, B1 is a maximum value of a deviation in the sub-scanning direction between the same color dots, and C1 is a maximum value of a deviation in the main scanning direction between the same color dots, it is set such that a value of tolerances of A1, B1, and C1 is A1≦B1≦C1.
摘要翻译：本发明涉及一种将使用该方法设置的喷墨打印机的每个标准值的公差设置为使墨滴着陆精度确定的方法，通过使用印刷结果实施感官测试喷墨打印机。利用该方法设定的公差，可以有效地模糊条带，而不会显着提高喷墨打印机的机械精度。特别地，当A 1是通过从副扫描方向的送纸量的平均值的点线长度获得的副扫描方向上的送纸量从理想值的偏差时，B 1是最大值相同颜色点之间的副扫描方向上的偏差的值，C 1是相同色点之间的主扫描方向上的偏差的最大值，设定为使得A 1， B 1，C 1是A 1 <= B 1 <= C 1。

9. 发明申请

US20050140744A1 Inkjet head and inkjet printer 有权
标题翻译：喷墨头和喷墨打印机
公开(公告)号：US20050140744A1
公开(公告)日：2005-06-30
申请号：US11020117
申请日：2004-12-27
申请人： Naoto Iwao
发明人： Naoto Iwao
IPC分类号： B41J2/045 , B41J2/055 , B41J2/14
CPC分类号： B41J2/14209 , B41J2002/14217 , B41J2002/14225 , B41J2002/14306 , B41J2002/14459 , B41J2002/14491 , B41J2202/20
摘要： An inkjet head in which cross-talk between adjacent pressure chambers is suppressed. The inkjet head has a channel unit having pressure chambers and nozzles communication with the pressure chambers, and an actuator unit fixed to one surface of the channel unit for changing the volume of the pressure chamber. The actuator unit includes individual electrodes provided opposed to the plurality of pressure chambers for receiving a drive signal to change the volume of the pressure chamber; a common electrode provided over the plurality of pressure chambers; a piezoelectric sheet provided between the individual electrode and the common electrode; and an independent electrode provided between adjacent individual electrodes and electrically isolated from the common electrode and the individual electrodes. An inductor is electrically connected between the independent electrode and a portion whose electric potential is substantially the same as that of the common electrode.
摘要翻译：一种喷墨头，其中相邻压力室之间的串扰被抑制。喷墨头具有通道单元，其具有与压力室连通的压力室和喷嘴，以及固定到通道单元的一个表面以用于改变压力室的体积的致动器单元。致动器单元包括与多个压力室相对设置的单独电极，用于接收驱动信号以改变压力室的体积; 设置在多个压力室上的公共电极; 设置在各个电极和公共电极之间的压电片; 以及设置在相邻单独电极之间并与公共电极和各个电极电隔离的独立电极。电感器电连接在独立电极和电位基本上与公共电极的电位相同的部分之间。

10. 发明授权

US06692109B2 Ink-jet head 有权
标题翻译：喷墨头
公开(公告)号：US06692109B2
公开(公告)日：2004-02-17
申请号：US10366392
申请日：2003-02-14
申请人： Atsushi Hirota , Naoto Iwao , Atsuo Sakaida
发明人： Atsushi Hirota , Naoto Iwao , Atsuo Sakaida
IPC分类号： B41J204
CPC分类号： B41J2/17563 , B41J2/055 , B41J2/14233 , B41J2002/14306 , B41J2002/14362 , B41J2002/14403 , B41J2202/03 , B41J2202/11
摘要： An ink-jet head includes a plurality of nozzles that eject ink, a first flat plate layer including at least one flat plate formed with an array of pressure chambers each communicating with a corresponding one of the nozzles, a second flat plate layer including at least one flat plate formed with a common ink chamber having a shape elongated in a direction of the array of the pressure chambers, an ink flow passage that communicates at one end with a corresponding one of the pressure chambers and at the other end with the common ink chamber, an ink supply passage connecting the common ink chamber and an ink supply source, a flat plate member in a shape of a thin film disposed between the first flat plate layer and the second flat plate layer, a filter formed at the flat plate member for filtering the ink, and a damper chamber formed by a flat plate fixed on the flat plate member on a side thereof opposed to the common ink chamber.
摘要翻译：一种喷墨头，包括喷射墨水的多个喷嘴;第一平板层，包括至少一个平板，该平板形成有一组压力室，每个压力室与相应的一个喷嘴连通，第二平板层至少包括一个平板，其形成有具有在压力室的阵列方向上延伸的形状的公共墨水室，墨水流动通道，其一端与相应的一个压力室连通，另一端与公共墨水连接公共墨水室和墨水供应源的墨水供应通道，设置在第一平板层和第二平板层之间的薄膜形状的平板构件，形成在平板构件上的过滤器用于对油墨进行过滤;以及阻尼室，其由平板固定在与普通油墨室相对的一侧上的平板形成。

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