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    Inkjet recording head having dynamic vibration absorber
    11.
    发明申请
    Inkjet recording head having dynamic vibration absorber 有权

    公开(公告)号：US20060012647A1

    公开(公告)日：2006-01-19

    申请号：US11179807

    申请日：2005-07-13

    申请人： Takahiro Yamada ,  Toshiharu Sumiya ,  Tomohiko Koda ,  Shinya Kobayashi ,  Satoru Tobita

    发明人： Takahiro Yamada ,  Toshiharu Sumiya ,  Tomohiko Koda ,  Shinya Kobayashi ,  Satoru Tobita

    IPC分类号： B41J2/04 ,  B41J2/045

    CPC分类号： B41J2/14233 ,  B41J2/055

    摘要： An inkjet recording head includes a base member, an ink channel unit, a plurality of piezoelectric elements, and a dynamic vibration absorber. The ink channel unit is formed with a plurality of nozzle holes and a plurality of ink pressure chambers. The ink channel unit includes a diaphragm that defines part of each ink pressure chamber. Each piezoelectric element has one end fixed to the base member and another end attached to the diaphragm. Each piezoelectric element generates displacement in a displacement direction for deforming the diaphragm to eject ink droplets through a corresponding one of the plurality of nozzle holes. The dynamic vibration absorber is mounted on the base member for damping vibrations of the base member due to a resonance, the resonance occurring in a frequency range less than or equal to a predetermined frequency.

    Inkjet head with high density nozzle packing
    12.
    发明授权
    Inkjet head with high density nozzle packing 失效
    喷墨头具有高密度喷嘴包装

    公开(公告)号：US07413294B2

    公开(公告)日：2008-08-19

    申请号：US10788349

    申请日：2004-03-01

    申请人： Satoru Tobita ,  Yoshitaka Akiyama ,  Toshiharu Sumiya ,  Yoshikane Matsumoto

    发明人： Satoru Tobita ,  Yoshitaka Akiyama ,  Toshiharu Sumiya ,  Yoshikane Matsumoto

    IPC分类号： B41J2/17 ,  B41J29/38 ,  B41J2/45

    CPC分类号： B41J2/14274 ,  B41J2/14233 ,  B41J2/145 ,  B41J2002/14362 ,  B41J2002/14491 ,  B41J2202/20

    摘要： An inkjet head includes a common ink puddle section, a nozzle plate having a plurality of nozzle orifices, an ink flow channel substrate having grooves communicating from the common ink puddle section to the nozzle orifices, and being formed alternatively in front and back surfaces of the ink flow channel substrate, to end sections of the grooves the nozzle plate being fixed, a chamber plate being stacked on the ink flow channel substrate, and having pressure generation chambers corresponding to the nozzle orifices, a diaphragm stacking on the chamber plate opposite from the ink flow channel substrate, a pressure generator provided on the diaphragm for the respective pressure generation chambers to generate a change in an internal pressure. Preferably, a volumetric capacity of the pressure generation chambers is changed in accordance with a change in the pressure, to eject an ink droplet from the nozzle orifice.

    摘要翻译： 喷墨头包括公用墨水池区段，具有多个喷嘴孔口的喷嘴板，具有从公共墨水池区段连接到喷嘴孔口的槽的墨水流道基板，并且在该喷嘴孔的前表面和后表面中交替形成 墨水流路基板，固定有喷嘴板的凹槽的端部，在油墨流路基板上堆叠的室板，具有与喷嘴孔对应的压力产生室，在与该喷嘴孔相对的室板上堆叠的膜片 墨水流路基板，设置在各个压力发生室的隔膜上的压力发生器，以产生内部压力的变化。 优选地，压力产生室的体积容量根据压力的变化而改变，以从喷嘴孔排出墨滴。

    Droplet ejecting apparatus and method for driving the same
    14.
    发明授权
    Droplet ejecting apparatus and method for driving the same 有权
    液滴喷射装置及其驱动方法

    公开(公告)号：US08845051B2

    公开(公告)日：2014-09-30

    申请号：US14095253

    申请日：2013-12-03

    申请人： Shuusuke Iwata ,  Naoko Kitaoka ,  Satoru Tobita

    发明人： Shuusuke Iwata ,  Naoko Kitaoka ,  Satoru Tobita

    IPC分类号： B41J29/38 ,  B41J2/045

    CPC分类号： B41J2/04588 ,  B41J2/04516 ,  B41J2/04581 ,  B41J2/04593

    摘要： A droplet ejecting apparatus includes a recording head including nozzles, liquid chambers communicating with the respective nozzles and storing ink, and actuators for applying pressure to the respective liquid chambers; and a print control unit configured to generate drive signals for driving the respective actuators to eject droplets from the nozzles. The drive signal includes a first contracting waveform component for ejecting a droplet and a second contracting waveform component for further contracting the liquid chamber after application of the first contracting waveform component but not ejecting a droplet. The second contracting waveform component is output at oscillation-damping timing at which a pressure wave generated by the first contracting waveform component is damped, in a condition where an environmental temperature is high, and is output at resonating timing at which resonance with the generated pressure wave occurs, in a condition where the environmental temperature is low.

    摘要翻译： 液滴喷射装置包括：记录头，包括喷嘴，与各个喷嘴连通的液体室和存储墨;以及用于向各个液体腔施加压力的致动器; 以及打印控制单元，被配置为产生用于驱动各个致动器以从喷嘴喷射液滴的驱动信号。 驱动信号包括用于喷射液滴的第一收缩波形分量和用于在施加第一收缩波形分量之后进一步收缩液体室而不喷射液滴的第二收缩波形分量。 第二收缩波形分量在环境温度高的条件下在由第一收缩波形分量产生的压力波被衰减的振荡阻尼定时输出，并且在与所产生的压力的共振的共振定时输出 在环境温度低的情况下发生波。

    Image forming apparatus including recording head for ejecting liquid droplets
    15.
    发明授权
    Image forming apparatus including recording head for ejecting liquid droplets 有权
    图像形成装置，包括用于喷射液滴的记录头

    公开(公告)号：US08777349B2

    公开(公告)日：2014-07-15

    申请号：US13421112

    申请日：2012-03-15

    申请人： Satoru Tobita ,  Takashi Satou

    发明人： Satoru Tobita ,  Takashi Satou

    IPC分类号： B41J29/38

    CPC分类号： B41J2/04588 ,  B41J2/04516 ,  B41J2/04581 ,  B41J2/14274 ,  B41J2002/14403

    摘要： An image forming apparatus includes a recording head and a driving waveform generator. The recording head has a nozzle, a liquid chamber, and a pressure generator. The driving waveform generator is connected to the pressure generator to generate and output a driving waveform including a plurality of driving pulses per driving cycle to eject a droplet from the nozzle. A last one of the driving pulses includes a first expansion waveform element, a first retaining waveform element, a first contraction waveform element, a second retaining waveform element, a second contraction waveform element, a third retaining waveform element, and a second expansion waveform element. The first contraction waveform element has a potential difference greater than a potential difference of the first expansion waveform element. The second contraction waveform element has a time period longer than a time period of the first contraction waveform element.

    摘要翻译： 图像形成装置包括记录头和驱动波形发生器。 记录头具有喷嘴，液体室和压力发生器。 驱动波形发生器连接到压力发生器，以产生并输出每个驱动周期包括多个驱动脉冲的驱动波形，以从喷嘴喷出液滴。 驱动脉冲的最后一个包括第一扩展波形元件，第一保持波形元件，第一收缩波形元件，第二保持波形元件，第二收缩波形元件，第三保持波形元件和第二展开波形元件 。 第一收缩波形元件具有大于第一膨胀波形元件的电位差的电位差。 第二收缩波形元件具有比第一收缩波形元件的时间段长的时间段。

    Sample data transmission apparatus
    17.
    发明授权
    Sample data transmission apparatus 失效
    样品数据传输装置

    公开(公告)号：US5257271A

    公开(公告)日：1993-10-26

    申请号：US939406

    申请日：1992-09-01

    申请人： Roger Lagadec ,  Keisuke Sekiguchi ,  Hiroyuki Yamauchi ,  Masaru Tezuka ,  Satoru Tobita ,  Yoichiro Sako ,  Hiroyuki Hara, deceased

    发明人： Roger Lagadec ,  Keisuke Sekiguchi ,  Hiroyuki Yamauchi ,  Masaru Tezuka ,  Satoru Tobita ,  Yoichiro Sako ,  Hiroyuki Hara, deceased

    IPC分类号： G11B20/18 ,  H03M13/27 ,  H04L1/14

    CPC分类号： H03M13/2764 ,  G11B20/1809

    摘要： In a sampled data transmitting apparatus in which the sampled data to be transmitted are divided into odd-numbered samples and even-numbered samples and arranged in different rows of a two-dimensional data array, and in which error correction codes are annexed to each row and to each column of the two-dimensional data array, the row arraying sequence in one of the odd-numbered or even-numbered rows is caused to differ from the row arraying sequence in the other of the odd-numbered or even-numbered rows so that odd-numbered data and even-numbered data continuous with the odd-numbered data are not arranged in one row. In this manner, even when error correction becomes impossible by the error correcting code for one row, interpolation remains feasible because there exist no odd-numbered data or even-numbered data contiguous to each other in the row.

    摘要翻译： 在采样数据发送装置中，将要发送的采样数据划分为奇数样本和偶数样本，并排列在二维数据阵列的不同行中，其中纠错码附于每行 并且对于二维数据阵列的每列，使奇数或偶数行之一中的行排列顺序与奇数行或偶数行中的另一行中的行排列顺序不同 使得与奇数数据连续的奇数数据和偶数数据不排列在一行中。 以这种方式，即使通过一行的纠错码不可能进行纠错，因为在该行中不存在彼此邻接的奇数数据或偶数数据，因此内插仍然是可行的。

    DROPLET EJECTING APPARATUS AND METHOD FOR DRIVING THE SAME
    18.
    发明申请
    DROPLET EJECTING APPARATUS AND METHOD FOR DRIVING THE SAME 有权
    喷射喷射装置及其驱动方法

    公开(公告)号：US20140160193A1

    公开(公告)日：2014-06-12

    申请号：US14095253

    申请日：2013-12-03

    申请人： Shuusuke Iwata ,  Naoko Kitaoka ,  Satoru Tobita

    发明人： Shuusuke Iwata ,  Naoko Kitaoka ,  Satoru Tobita

    IPC分类号： B41J2/045

    CPC分类号： B41J2/04588 ,  B41J2/04516 ,  B41J2/04581 ,  B41J2/04593

    摘要： A droplet ejecting apparatus includes a recording head including nozzles, liquid chambers communicating with the respective nozzles and storing ink, and actuators for applying pressure to the respective liquid chambers; and a print control unit configured to generate drive signals for driving the respective actuators to eject droplets from the nozzles. The drive signal includes a first contracting waveform component for ejecting a droplet and a second contracting waveform component for further contracting the liquid chamber after application of the first contracting waveform component but not ejecting a droplet. The second contracting waveform component is output at oscillation-damping timing at which a pressure wave generated by the first contracting waveform component is damped, in a condition where an environmental temperature is high, and is output at resonating timing at which resonance with the generated pressure wave occurs, in a condition where the environmental temperature is low.

    摘要翻译： 液滴喷射装置包括：记录头，包括喷嘴，与各个喷嘴连通的液体室和存储墨;以及用于向各个液体腔施加压力的致动器; 以及打印控制单元，被配置为产生用于驱动各个致动器以从喷嘴喷射液滴的驱动信号。 驱动信号包括用于喷射液滴的第一收缩波形分量和用于在施加第一收缩波形分量之后进一步收缩液体室而不喷射液滴的第二收缩波形分量。 第二收缩波形分量在环境温度高的条件下在由第一收缩波形分量产生的压力波被衰减的振荡阻尼定时输出，并且在与所产生的压力的共振的共振定时输出 在环境温度低的情况下发生波。

    LIQUID-JET HEAD AND IMAGE FORMING APPARATUS
    19.
    发明申请
    LIQUID-JET HEAD AND IMAGE FORMING APPARATUS 有权
    液体喷头和图像形成装置

    公开(公告)号：US20130242001A1

    公开(公告)日：2013-09-19

    申请号：US13782113

    申请日：2013-03-01

    申请人： Masahiro Kuwata ,  Kunihiro Yamanaka ,  Satoru Tobita

    发明人： Masahiro Kuwata ,  Kunihiro Yamanaka ,  Satoru Tobita

    IPC分类号： B41J2/045

    CPC分类号： B41J2/045 ,  B41J2/14274 ,  B41J2202/11

    摘要： A liquid-jet head includes a channel plate forming an individual liquid chamber in communication with nozzles configured to eject liquid drops, a wall surface member forming a wall surface of the individual liquid chamber, and a drive unit disposed on the wall surface member side and configured to generate a pressure applied to a drive region inside the individual liquid chamber. In the liquid-jet head, a fluid resistance part is formed by disposing an island part in a liquid supply channel configured to supply a liquid to the individual liquid channel, and the island part includes a gradient part on the channel plate side, at least a part of the gradient part being formed such that the part of the gradient part faces the drive region inside the individual liquid chamber.

    摘要翻译： 液体喷射头包括形成与喷射液滴的喷嘴连通的单独液体室的通道板，形成各个液体室的壁表面的壁表面构件和设置在壁表面构件侧的驱动单元， 被配置为产生施加到单个液体室内部的驱动区域的压力。 在液体喷射头中，通过将岛部设置在供给液体的液体供给流路中而形成流体阻力部，该液体供给流路构成为向各个液体流路供给液体，岛部在通道板侧具有梯度部，至少 梯度部分的一部分被形成为使得梯度部分的部分面向独立液体室内的驱动区域。