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1. 发明授权

US08393702B2 Separation of drive pulses for fluid ejector 有权
公开(公告)号：US08393702B2
公开(公告)日：2013-03-12
申请号：US12635567
申请日：2009-12-10
申请人： Christoph Menzel , Masakazu Okuda , Steven H. Barss
发明人： Christoph Menzel , Masakazu Okuda , Steven H. Barss
IPC分类号： B41J2/01 , B41J2/045 , B41J2/05 , B41J2/055
CPC分类号： B41J2/04581 , B41J2/04516 , B41J2/04588 , B41J2/04595
摘要： A method for causing fluid to be ejected from a fluid chamber of a jet in a printhead. An actuator is actuated with a first energy imparting pulse to push fluid away from the actuator and toward a nozzle. Following a lapse of a first interval, the actuator is actuated with second energy imparting pulse to push fluid away from the actuator and toward the nozzle. Following a lapse of a second interval as measured from the second energy imparting pulse, the actuator is actuated with a break-off pulse to cause fluid extending out of an orifice of the nozzle to break off from fluid within the nozzle, wherein the second lapse is longer than the first lapse and is an inverse of the meniscus-jet mass frequency.

2. 发明申请

US20120127230A1 Separation of Drive Pulses for Fluid Ejector 有权
标题翻译：液体喷射器驱动脉冲的分离
公开(公告)号：US20120127230A1
公开(公告)日：2012-05-24
申请号：US13297433
申请日：2011-11-16
申请人： Christoph Menzel , Masakazu Okuda , Steven H. Barss
发明人： Christoph Menzel , Masakazu Okuda , Steven H. Barss
IPC分类号： B41J29/393
CPC分类号： B41J2/04581 , B41J2/04516 , B41J2/04588 , B41J2/04595
摘要： A method for causing fluid to be ejected from a fluid chamber of a jet in a printhead. An actuator is actuated with a first energy imparting pulse to push fluid away from the actuator and toward a nozzle. Following a lapse of a first interval, the actuator is actuated with second energy imparting pulse to push fluid away from the actuator and toward the nozzle. Following a lapse of a second interval as measured from the second energy imparting pulse, the actuator is actuated with a break-off pulse to cause fluid extending out of an orifice of the nozzle to break off from fluid within the nozzle, wherein the second lapse is longer than the first lapse and is an inverse of the meniscus-jet mass frequency.
摘要翻译：一种用于使流体从喷头的流体室喷射到打印头中的方法。致动器通过第一能量施加脉冲致动，以将流体推离致动器并朝向喷嘴。在经过第一间隔之后，致动器由第二能量施加脉冲致动，以将流体推离致动器并朝向喷嘴。在从第二能量施加脉冲测得的经过第二间隔之后，致动器以断开脉冲致动，以使流出喷嘴孔口的流体从喷嘴内的流体中分离出来，其中第二次流逝比第一次流逝长，并且是弯液面喷射质量频率的倒数。

3. 发明授权

US08403452B2 Separation of drive pulses for fluid ejector 有权
标题翻译：液体喷射器驱动脉冲的分离
公开(公告)号：US08403452B2
公开(公告)日：2013-03-26
申请号：US13297433
申请日：2011-11-16
申请人： Christoph Menzel , Masakazu Okuda , Steven H. Barss
发明人： Christoph Menzel , Masakazu Okuda , Steven H. Barss
IPC分类号： B41J29/393 , B41J29/38
CPC分类号： B41J2/04581 , B41J2/04516 , B41J2/04588 , B41J2/04595
摘要： A method for causing fluid to be ejected from a fluid chamber of a jet in a printhead. An actuator is actuated with a first energy imparting pulse to push fluid away from the actuator and toward a nozzle. Following a lapse of a first interval, the actuator is actuated with second energy imparting pulse to push fluid away from the actuator and toward the nozzle. Following a lapse of a second interval as measured from the second energy imparting pulse, the actuator is actuated with a break-off pulse to cause fluid extending out of an orifice of the nozzle to break off from fluid within the nozzle, wherein the second lapse is longer than the first lapse and is an inverse of the meniscus-jet mass frequency.
摘要翻译：一种用于使流体从喷头的流体室喷射到打印头中的方法。致动器通过第一能量施加脉冲致动，以将流体推离致动器并朝向喷嘴。在经过第一间隔之后，致动器由第二能量施加脉冲致动，以将流体推离致动器并朝向喷嘴。在从第二能量施加脉冲测得的经过第二间隔之后，致动器以断开脉冲致动，以使流出喷嘴孔口的流体从喷嘴内的流体中分离出来，其中第二次流逝比第一次流逝长，并且是弯液面喷射质量频率的倒数。

4. 发明申请

US20110141172A1 SEPARATION OF DRIVE PULSES FOR FLUID EJECTOR 有权
标题翻译：液体喷射器驱动脉冲的分离
公开(公告)号：US20110141172A1
公开(公告)日：2011-06-16
申请号：US12635567
申请日：2009-12-10
申请人： Christoph Menzel , Masakazu Okuda
发明人： Christoph Menzel , Masakazu Okuda
IPC分类号： B41J29/38
CPC分类号： B41J2/04581 , B41J2/04516 , B41J2/04588 , B41J2/04595
摘要： A method for causing fluid to be ejected from a fluid chamber of a jet in a printhead. An actuator is actuated with a first energy imparting pulse to push fluid away from the actuator and toward a nozzle. Following a lapse of a first interval, the actuator is actuated with second energy imparting pulse to push fluid away from the actuator and toward the nozzle. Following a lapse of a second interval as measured from the second energy imparting pulse, the actuator is actuated with a break-off pulse to cause fluid extending out of an orifice of the nozzle to break off from fluid within the nozzle, wherein the second lapse is longer than the first lapse and is an inverse of the meniscus-jet mass frequency.
摘要翻译：一种用于使流体从喷头的流体室喷射到打印头中的方法。致动器通过第一能量施加脉冲致动，以将流体推离致动器并朝向喷嘴。在经过第一间隔之后，致动器由第二能量施加脉冲致动，以将流体推离致动器并朝向喷嘴。在从第二能量施加脉冲测得的经过第二间隔之后，致动器以断开脉冲致动，以使流出喷嘴孔口的流体从喷嘴内的流体中分离出来，其中第二次流逝比第一次流逝长，并且是弯液面喷射质量频率的倒数。

5. 发明授权

US07735947B2 Droplet ejecting apparatus and droplet ejecting method 失效
标题翻译：液滴喷射装置和液滴喷射方法
公开(公告)号：US07735947B2
公开(公告)日：2010-06-15
申请号：US11347594
申请日：2006-02-04
申请人： Masakazu Okuda
发明人： Masakazu Okuda
IPC分类号： B41J29/38
CPC分类号： B41J2/04591 , B41J2/04516 , B41J2/04541 , B41J2/04553 , B41J2/04581 , B41J2/04588
摘要： In a droplet ejecting system, after an ink droplet is ejected a reverberation pressure change is amplified to obtain an appropriate amount of reverberation pressure change, and the ink droplet is reliably separated from a meniscus when ejecting the ink droplet. To this end, voltage including an ejecting pulse for ejecting the ink droplet is applied to a piezoactuator to generate a pressure change in a pressure chamber, and voltage including a reverberation amplifying pulse is applied to the piezoactuator to amplify the pressure change in the pressure chamber in the next cycle subsequent to the cycle of the pressure change generated by the ejecting pulse.
摘要翻译：在液滴喷射系统中，在喷射墨滴之后，扩大混响压力变化以获得适当量的混响压力变化，并且当喷射墨滴时墨滴可靠地与弯液面分离。为此，包括用于喷射墨滴的喷射脉冲的电压被施加到压电致动器以产生压力室中的压力变化，并且包括混响放大脉冲的电压被施加到压电致动器以放大压力室中的压力变化在由喷射脉冲产生的压力变化的循环之后的下一个循环中。

6. 发明申请

US20070052756A1 Droplet ejection head driving method, droplet ejection head and droplet ejection device 有权
标题翻译：液滴喷射头驱动方法，液滴喷射头和液滴喷射装置
公开(公告)号：US20070052756A1
公开(公告)日：2007-03-08
申请号：US11351852
申请日：2006-02-10
申请人： Masakazu Okuda
发明人： Masakazu Okuda
IPC分类号： B41J2/04
CPC分类号： B41J2/04588 , B41J2/04581
摘要： A droplet ejection head driving method applies a driving voltage waveform to pressure-generating means, thus pressurizing a liquid in a pressure chamber and causing a droplet to be ejected. The driving voltage waveform includes a first voltage change process, which expands the pressure chamber, and a second voltage change process, after the first voltage change process, which shrinks the pressure chamber. A time interval between the first voltage change process and the second voltage change process is not more than ⅛ of a resonance period Tm of a meniscus oscillation (a refill oscillation), which is governed by surface tension of the liquid at a nozzle portion.
摘要翻译：液滴喷射头驱动方法将驱动电压波形施加到压力产生装置，从而对压力室中的液体加压并使液滴喷射。驱动电压波形包括在第一电压变化过程之后使压力室膨胀的第一电压变化过程和压缩室收缩的第二电压变化过程。第一电压变化处理和第二电压变化处理之间的时间间隔不大于弯液面振荡（再填充振荡）的共振周期Tm的1/8，其由喷嘴部分处的液体的表面张力。

7. 发明授权

US06692103B2 Ink jet recording head 失效
标题翻译：喷墨记录头
公开(公告)号：US06692103B2
公开(公告)日：2004-02-17
申请号：US10140621
申请日：2002-05-07
申请人： Masakazu Okuda , Yasuhiro Otsuka
发明人： Masakazu Okuda , Yasuhiro Otsuka
IPC分类号： B41J2145
CPC分类号： B41J2/1634 , B41J2/1433 , B41J2/162 , B41J2/1623 , B41J2002/14459 , B41J2002/14475 , B41J2202/11
摘要： An ink jet recording head wherein a nozzle jetting ink droplets is structured of a plurality of ink jet ports 11, and the length ln [m] of an ink jet port and pitch Pn [m] are set to satisfy the conditions ln>1.2 Vd/An and Pn>1.4 dd (where Vd is the volume of ink droplets that are jetted from one individual ink jet port [m3], dd is diameter of an ink droplet [m] and An is the area of a nozzle opening [m2]); wherein the fusion phenomena of a meniscus at the rear surface of a nozzle after ink is jetted can be suppressed; and wherein the effect of a multi-port nozzle enabling re-fill time to be reduced is utilized. Further the fusion phenomena of ink jet droplets in flight after being jet expelled from a multi-port nozzle can be suppressed enabling superior quality images to be recorded.
摘要翻译：一种喷墨记录头，其中喷射喷墨墨滴的喷嘴由多个喷墨口11构成，喷墨口的长度ln [m]和间距Pn [m]设定为满足条件ln> 1.2 Vd / An和Pn> 1.4dd（其中Vd是从一个单独的喷墨口喷射的墨滴的体积[m 3]，dd是墨滴的直径[m]，并且An是喷嘴的面积开[m 2]）; 其中喷墨后喷嘴后表面上的弯液面的熔化现象可被抑制; 并且利用能够减少再填充时间的多口喷嘴的效果。此外，可以抑制喷射从多口喷嘴排出的飞行中的喷墨液滴的融合现象，从而能够记录优质的图像。

8. 发明授权

US06685300B1 Device and method for driving ink jet printing head capable of attaining both high quality printing and reduction of ink consumption 失效
标题翻译：用于驱动喷墨打印头的装置和方法，其能够实现高质量打印和降低墨水消耗
公开(公告)号：US06685300B1
公开(公告)日：2004-02-03
申请号：US09613808
申请日：2000-07-11
申请人： Toshinori Ishiyama , Masakazu Okuda
发明人： Toshinori Ishiyama , Masakazu Okuda
IPC分类号： B41J2165
CPC分类号： B41J2/1652
摘要： A driving method for an ink jet printing head includes a vibration application step and an ink refresh operation step. In the vibration application step, small vibrations, which do not cause ink drop discharge from nozzles of the ink jet printing head, are applied to pressure-generation chambers of the ink jet printing head corresponding to nozzles which are not executing ink drop discharge. In the ink refresh operation step, ink refresh operation, for removing the ink in the nozzles and replacing the ink with fresh ink, is periodically executed according to a refresh operation cycle which is appropriately set based on the temperature and/or humidity measured around the ink jet printing head. The ink refresh operation is executed by means of forcible ink drop discharge from the nozzles, ink suction by a pump, etc. For example, the refresh operation cycle is set shorter as the temperature around the ink jet printing head gets lower and as the humidity around the ink jet printing head gets lower. By the vibration application step and the ink refresh operation step with such setting of the refresh operation cycle, stable discharge of minute ink drops and high quality ink jet printing can be maintained for the long term even if the ink drop discharge pause period continued long, without causing large ink consumption and long printing time due to the ink refresh operation.
摘要翻译：喷墨打印头的驱动方法包括振动施加步骤和油墨刷新操作步骤。在振动施加步骤中，对于与不进行墨滴放电的喷嘴相对应的喷墨打印头的压力发生室，施加不会从喷墨打印头的喷嘴排墨的小振动。在油墨更新操作步骤中，根据刷新操作周期来周期性地执行用于去除喷嘴中的油墨并更换油墨的油墨刷新操作，该刷新操作周期是基于在周围测量的温度和/或湿度来适当设定的喷墨打印头。油墨刷新操作是通过喷嘴的强制墨滴排出，泵吸油等进行的。例如，当喷墨打印头周围的温度变低时，刷新操作周期变短，随着湿度喷墨打印头周围的位置变低。通过振动施加步骤和刷新操作步骤，通过这种设置刷新操作周期，即使墨滴放电暂停时间持续较长，也可以长期保持微小墨滴的稳定放电和高质量的喷墨打印，而不会由于油墨刷新操作而导致墨水消耗大和打印时间长。

9. 发明授权

US06550897B2 Inkjet recording head and recording apparatus using the same 有权
公开(公告)号：US06550897B2
公开(公告)日：2003-04-22
申请号：US10022938
申请日：2001-12-18
申请人： Hirofumi Nakamura , Masakazu Okuda , Yasuhiro Otsuka
发明人： Hirofumi Nakamura , Masakazu Okuda , Yasuhiro Otsuka
IPC分类号： B41J2045
CPC分类号： B41J2/14233 , B41J2002/14419 , B41J2002/14459 , B41J2002/14491
摘要： An inkjet recording head allowing a high driving efficiency and preventing a variation in the driving efficiency is disclosed. An piezoelectric actuator is provided for each ink nozzle and has a driving section disposed in an area of an ink pressure chamber, an electrode pad section, and at least one bridge section connecting the driving section and the electrode pad section. The pressure chamber has a plane shape having an aspect ratio approximately equal to 1, and the bridge section has a width of a connection area to the driving section set smaller than a width of a connection side of the driving section.

10. 发明授权

US07595837B2 Image pickup apparatus and grasp member thereof 有权
标题翻译：摄像装置及其把握部件
公开(公告)号：US07595837B2
公开(公告)日：2009-09-29
申请号：US11402003
申请日：2006-04-12
申请人： Hisao Kobayashi , Masakazu Okuda , Nobutaka Kanayama , Yoshiaki Akutagawa , Hidenori Tomita
发明人： Hisao Kobayashi , Masakazu Okuda , Nobutaka Kanayama , Yoshiaki Akutagawa , Hidenori Tomita
IPC分类号： G03B17/02
CPC分类号： H04N5/2252 , G03B17/563
摘要： There is provided a grasp member joined to the top portion of an image pickup apparatus body including a lens barrel unit at the front end and a display unit at the rear end through leg portions. Here, the front one of the leg portions is joined to the image pickup apparatus body at an offset position to the left from an optical axis of light incident on the lens barrel unit.
摘要翻译：提供了一种把持构件，其连接到包括前端的透镜筒单元的图像拾取装置主体的顶部以及通过脚部的后端的显示单元。这里，前述一个腿部从入射到镜筒单元的光的光轴左侧的偏移位置处接合到摄像装置主体。

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