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1. 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）。

2. 发明授权

US07628462B2 Droplet discharge device and method of driving the same 有权
标题翻译：液滴放电装置及其驱动方法
公开(公告)号：US07628462B2
公开(公告)日：2009-12-08
申请号：US11276316
申请日：2006-02-23
申请人： Naoto Iwao , Ayumu Matsumoto
发明人： Naoto Iwao , Ayumu Matsumoto
IPC分类号： B41J29/38
CPC分类号： B41J2/04581 , B41J2/04588 , B41J2/04595 , B41J2002/14217 , B41J2002/14225 , B41J2002/14306 , B41J2002/14459 , B41J2202/06 , B41J2202/20
摘要： In order to preserve good droplet discharge efficiency in a droplet discharge device, a plurality of timings are set within a period in which a plurality of droplets are to be discharged to a target position. Consecutive timings are divided by a cycle time of pressure wave that is generated inside a pressure chamber by transmitting a signal to an actuator. When a plurality of signals are applied to the actuator at consecutive timings, the peak of the pressure wave and the application of the signals are synchronous, and the droplet discharge efficiency will be improved. However, the consecutive number of timings at which the consecutive signals are transmitted is limited to a predetermined number. In this way, the pressure inside the pressure chamber can be prevented from becoming too high.
摘要翻译：为了在液滴喷射装置中保持良好的液滴喷射效率，在将多个液滴排出到目标位置的期间内设定多个定时。连续定时除以通过向致动器发送信号在压力室内产生的压力波的循环时间。当多个信号以连续的定时施加到致动器时，压力波的峰值和信号的施加是同步的，并且将提高液滴的排出效率。然而，发送连续信号的连续定时数被限制为预定数量。以这种方式，可以防止压力室内的压力变得太高。

3. 发明申请

US20060187263A1 Droplet Discharge Device And Method Of Driving The Same 有权
标题翻译：滴液装置及其驱动方法
公开(公告)号：US20060187263A1
公开(公告)日：2006-08-24
申请号：US11276316
申请日：2006-02-23
申请人： Naoto Iwao , Ayumu Matsumoto
发明人： Naoto Iwao , Ayumu Matsumoto
IPC分类号： B41J2/04
CPC分类号： B41J2/04581 , B41J2/04588 , B41J2/04595 , B41J2002/14217 , B41J2002/14225 , B41J2002/14306 , B41J2002/14459 , B41J2202/06 , B41J2202/20
摘要： In order to preserve good droplet discharge efficiency in a droplet discharge device, a plurality of timings are set within a period in which a plurality of droplets are to be discharged to a target position. Consecutive timings are divided by a cycle time of pressure wave that is generated inside a pressure chamber by transmitting a signal to an actuator. When a plurality of signals are applied to the actuator at consecutive timings, the peak of the pressure wave and the application of the signals are synchronous, and the droplet discharge efficiency will be improved. However, the consecutive number of timings at which the consecutive signals are transmitted is limited to a predetermined number. In this way, the pressure inside the pressure chamber can be prevented from becoming too high.
摘要翻译：为了在液滴喷射装置中保持良好的液滴喷射效率，在将多个液滴排出到目标位置的期间内设定多个定时。连续定时除以通过向致动器发送信号在压力室内产生的压力波的循环时间。当多个信号以连续的定时施加到致动器时，压力波的峰值和信号的施加是同步的，并且将提高液滴的排出效率。然而，发送连续信号的连续定时数被限制为预定数量。以这种方式，可以防止压力室内的压力变得太高。

4. 发明授权

US07086711B2 Inkjet printing apparatus and actuator controller and actuator controlling method used in inkjet printing apparatus 有权
标题翻译：用于喷墨打印设备的喷墨打印设备和致动器控制器和致动器控制方法
公开(公告)号：US07086711B2
公开(公告)日：2006-08-08
申请号：US10667496
申请日：2003-09-23
申请人： Naoto Iwao , Ayumu Matsumoto
发明人： Naoto Iwao , Ayumu Matsumoto
IPC分类号： B41J29/38
CPC分类号： B41J2/0456 , B41J2/04581 , B41J2/04588 , B41J2/04593 , B41J2/14209 , B41J2002/14217 , B41J2002/14225 , B41J2002/14306
摘要： An actuator unit is driven with a voltage pulse supplied from a driver IC. The actuator unit can take two states of a first state wherein the volume of a pressure chamber is V1, and a second state wherein the volume of the pressure chamber is V2 larger than V1. A state of the actuator unit changes from the first state to the second state and then to the first state again so that ink is ejected through a nozzle connected to one end of the pressure chamber. A pulse width Tw of the voltage pulse to be supplied to the actuator unit is shorter than a pulse width Tmax at which a maximum ejection speed of ink ejected from the nozzle is obtained. Thus, with simplifying a waveform of the voltage pulse, two of large and small ink droplets can be successively ejected in the order of the large and small ink droplets.
摘要翻译：致动器单元由驱动器IC提供的电压脉冲驱动。致动器单元可以采取第一状态的两种状态，其中压力室的容积为V 1，第二状态为压力室的体积比V 1大V 2。致动器单元的状态从第一状态转变到第二状态，然后再次转换到第一状态，从而通过连接到压力室一端的喷嘴喷射墨水。提供给致动器单元的电压脉冲的脉冲宽度Tw短于获得从喷嘴喷出的墨的最大喷射速度的脉冲宽度Tmax。因此，通过简化电压脉冲的波形，可以按大墨滴和小墨滴的顺序依次喷射两个大墨滴和小墨滴。

5. 发明授权

US07938499B2 Liquid discharge device, piezoelectric ink jet head, and driving method for liquid discharge device 有权
标题翻译：液体排出装置，压电喷墨头和液体排出装置的驱动方法
公开(公告)号：US07938499B2
公开(公告)日：2011-05-10
申请号：US12092260
申请日：2006-09-29
申请人： Ayumu Matsumoto , Naoto Iwao
发明人： Ayumu Matsumoto , Naoto Iwao
IPC分类号： B41J29/38
CPC分类号： B41J2/04598 , B41J2/04581 , B41J2/04588 , B41J2/04596 , B41J2002/14266
摘要： It is possible to minimize the amplitude of residual vibration of a piezoelectric actuator so as to maintain the image quality of a formed image at a preferable level in case of an ink jet head, for example. A liquid discharge device includes a control unit (14) for ON/OFF control of a drive voltage applied to the piezoelectric actuator. The control unit (14) has a micro vibration control section (23) for drive-controlling a drive circuit so as to micro-vibrate the piezoelectric actuator in a waiting state not discharging a liquid drop from a nozzle, in a range that no liquid drop is discharged in the nozzle. The piezoelectric ink jet head includes the liquid discharge device. The drive method is for micro-vibrating the piezoelectric actuator in the waiting state not discharging a liquid drop from the nozzle, in a range that no liquid drop is discharged from the nozzle.
摘要翻译：例如，可以使压电致动器的残余振动的振幅最小化，以便在喷墨头的情况下将形成的图像的图像质量保持在优选的水平。液体排出装置包括用于对施加到压电致动器的驱动电压进行ON / OFF控制的控制单元（14）。控制单元（14）具有用于驱动控制驱动电路的微型振动控制部（23），以使压电致动器在不从喷嘴排出液滴的等待状态下微振动，在无液体液滴在喷嘴中排出。压电喷墨头包括液体排出装置。该驱动方法是在没有液滴从喷嘴排出的范围内，在等待状态下不使喷嘴滴下液滴的压电致动器进行微振动。

6. 发明申请

US20090219315A1 Liquid Discharge Device, Piezoelectric Ink Jet Head, and Driving Method for Liquid Discharge Device 有权
标题翻译：液体放电装置，压电喷墨头和液体放电装置的驱动方法
公开(公告)号：US20090219315A1
公开(公告)日：2009-09-03
申请号：US12092260
申请日：2006-09-29
申请人： Ayumu Matsumoto , Naoto Iwao
发明人： Ayumu Matsumoto , Naoto Iwao
IPC分类号： B41J29/38 , B41J2/045
CPC分类号： B41J2/04598 , B41J2/04581 , B41J2/04588 , B41J2/04596 , B41J2002/14266
摘要： It is possible to minimize the amplitude of residual vibration of a piezoelectric actuator so as to maintain the image quality of a formed image at a preferable level in case of an ink jet head, for example. A liquid discharge device includes a control unit (14) for ON/OFF control of a drive voltage applied to the piezoelectric actuator. The control unit (14) has a micro vibration control section (23) for drive-controlling a drive circuit so as to micro-vibrate the piezoelectric actuator in a waiting state not discharging a liquid drop from a nozzle, in a range that no liquid drop is discharged in the nozzle. The piezoelectric ink jet head includes the liquid discharge device. The drive method is for micro-vibrating the piezoelectric actuator in the waiting state not discharging a liquid drop from the nozzle, in a range that no liquid drop is discharged from the nozzle.
摘要翻译：例如，可以使压电致动器的残余振动的振幅最小化，以便在喷墨头的情况下将形成的图像的图像质量保持在优选的水平。液体排出装置包括用于对施加到压电致动器的驱动电压进行ON / OFF控制的控制单元（14）。控制单元（14）具有用于驱动控制驱动电路的微型振动控制部（23），以使压电致动器在不从喷嘴排出液滴的等待状态下微振动，其范围为无液体液滴在喷嘴中排出。压电喷墨头包括液体排出装置。该驱动方法是在没有液滴从喷嘴排出的范围内，在等待状态下不使喷嘴滴下液滴的压电致动器进行微振动。

7. 发明申请

US20050219290A1 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：US20050219290A1
公开(公告)日：2005-10-06
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： B41J2/01 , B41J2/05 , B41J2/205 , B41J29/38 , B41J2/145 , B41J2/15
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

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。

9. 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。

10. 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。

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