公开(公告)号：US06517189B2

公开(公告)日：2003-02-11

申请号：US09780350

申请日：2001-02-12

申请人： Toshitaka Ogawa ,  Satoru Tobita ,  Takashi Kagami

发明人： Toshitaka Ogawa ,  Satoru Tobita ,  Takashi Kagami

IPC分类号： B41J2165

CPC分类号： B41J2/16532 ,  B41J2/17596

摘要： A head is formed with a plurality of nozzles and a common ink chamber fluidly connected with the nozzles. A sub ink tank is provided above the head. Ink housed in a main ink tank is supplied into the sub ink tank through the common ink chamber when an image forming operation is not performed. At this time, air bubbles existing in the common ink chamber is brought into the sub ink tank along with the ink supplied from the main ink tank. The air bubbles collected into the sub ink tank in this manner are released into the ambient air through a valve provided to the sub ink tank.

摘要翻译： 头部形成有多个喷嘴和与喷嘴流体连接的公共墨水室。 在墨水头上方设置副墨水盒。 当不进行图像形成操作时，容纳在主墨水盒中的墨水通过公共墨水室供应到副墨水盒中。 此时，存在于普通墨水室中的气泡与从主墨水供应的墨一起被带入副墨槽。 以这种方式收集到副墨水罐中的气泡通过设置在副墨水罐的阀门被释放到环境空气中。

公开(公告)号：US06719411B2

公开(公告)日：2004-04-13

申请号：US10284303

申请日：2002-10-31

申请人： Shinya Tomita ,  Toshitaka Ogawa ,  Satoru Tobita

发明人： Shinya Tomita ,  Toshitaka Ogawa ,  Satoru Tobita

IPC分类号： B41J2045

CPC分类号： B41J2/1612 ,  B41J2/14274 ,  B41J2/1618 ,  B41J2/1623 ,  B41J2202/11

摘要： An ink jet recording head that enables a reduction in the amount of piezoelectric plate consumed, so that costs can be lowered, without lowering efficiency of piezoelectric actuators, even if the piezoelectric actuators are only roughly fixed to the housing, and that also enables accurately and easily positioning the piezoelectric actuators with respect to a diaphragm that defines an ink channel. Assuming that mB is the mass (kg) of the base 3 to which the piezoelectric actuator 5 is fixed and Tfall is the rising edge time (s) of the drive signal that drives the piezoelectric actuator 5, the spring modulus determined from mB and Tfall is 2×mB/Tfall2≧5.0 e6 (N/m). Therefore, the displacement of the piezoelectric actuator can be efficiently transmitted to the ink chamber regardless of the spring modulus of the adhesive agent used to fix the base to the housing.

摘要翻译： 一种喷墨记录头，即使压电致动器仅大致固定在壳体上，能够减少压电板的消耗量，从而降低成本而不降低压电致动器的效率，并且还能够精确地和 相对于限定墨水通道的隔膜容易地定位压电致动器。 假设mB是压电致动器5固定的基座3的质量（kg），Tfall是驱动压电致动器5的驱动信号的上升沿时间（s），则从mB和Tfall确定的弹簧模量 是2xmB / Tfall <2 >> = 5.0e <6>（N / m）。 因此，无论用于将基座固定到壳体的粘合剂的弹簧模量如何，压电致动器的位移可以有效地传递到墨室。

公开(公告)号：US06761436B2

公开(公告)日：2004-07-13

申请号：US10183422

申请日：2002-06-28

申请人： Satoru Tobita ,  Shinya Tomita ,  Toshitaka Ogawa

发明人： Satoru Tobita ,  Shinya Tomita ,  Toshitaka Ogawa

IPC分类号： B41J2045

CPC分类号： B41J2/14

摘要： An inkjet head is formed with a nozzle, a pressure chamber, a plurality of restrictors, and a common ink chamber. Because the plurality of restrictors are formed in the inkjet head, it is possible to increase a fluid resistance of the restrictors without decreasing the Helmholtz resonant frequency. Accordingly, the inkjet head can be driven at a high frequency while preventing residual pressure wave affecting a subsequent ink ejection.

摘要翻译： 喷墨头形成有喷嘴，压力室，多个限制器和公共墨水室。 由于多个限制器形成在喷墨头中，所以可以在不降低亥姆霍兹共振频率的情况下增加限制器的流体阻力。 因此，可以以高频率驱动喷墨头，同时防止残留压力波影响随后的喷墨。

公开(公告)号：US06328418B1

公开(公告)日：2001-12-11

申请号：US09632621

申请日：2000-08-04

申请人： Takahiro Yamada ,  Hiroomi Kozawa ,  Takuji Torii ,  Kazunobu Hayashi ,  Toshitaka Ogawa ,  Satoru Tobita ,  Makoto Kurosawa ,  Kenji Yamada ,  Nobuhiro Noto ,  Osamu Machida ,  Katsunori Kawasumi ,  Hitoshi Kida ,  Mamoru Okano

发明人： Takahiro Yamada ,  Hiroomi Kozawa ,  Takuji Torii ,  Kazunobu Hayashi ,  Toshitaka Ogawa ,  Satoru Tobita ,  Makoto Kurosawa ,  Kenji Yamada ,  Nobuhiro Noto ,  Osamu Machida ,  Katsunori Kawasumi ,  Hitoshi Kida ,  Mamoru Okano

IPC分类号： B41J215

CPC分类号： B41J2/15 ,  B41J2202/20

摘要： A print head for ink jet printer having a reduced length in a main scanning direction and an elongated length in an auxiliary scanning direction perpendicular to the main scanning direction. A plurality of linear print head modules are arrayed in the auxiliary scanning direction, and each linear print head module extends in a slanting direction with respect to the main scanning direction by a predetermined angle. Further, each linear print head module has a width in a direction perpendicular to its extending direction. The slanting angle and the width determine scanning pitch extending in the auxiliary scanning direction and can reduces the length of the print head in the main scanning direction.

摘要翻译： 一种用于喷墨打印机的打印头，其在主扫描方向上具有减小的长度，并且在垂直于主扫描方向的辅助扫描方向上具有细长的长度。 多个线性打印头模块沿辅助扫描方向排列，并且每个线性打印头模块相对于主扫描方向以倾斜方向延伸预定角度。 此外，每个线性打印头模块在垂直于其延伸方向的方向上具有宽度。 倾斜角度和宽度决定了在辅助扫描方向上延伸的扫描间距，并且可以减小打印头在主扫描方向上的长度。

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。

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。

公开(公告)号：US08348407B2

公开(公告)日：2013-01-08

申请号：US12822522

申请日：2010-06-24

申请人： Ryouta Matsufuji ,  Hideyuki Makita ,  Tadashi Mimura ,  Satoru Tobita ,  Tomohiko Koda

发明人： Ryouta Matsufuji ,  Hideyuki Makita ,  Tadashi Mimura ,  Satoru Tobita ,  Tomohiko Koda

IPC分类号： B41J2/175

CPC分类号： B41J2/14233 ,  B41J2002/14362 ,  B41J2002/14403 ,  B41J2002/14419

摘要： A liquid ejection head includes nozzles, separate chambers, a common chamber, inlet portions, a filter unit, and ribs. Droplets of liquid are ejected from the nozzles. The separate chambers are communicated with the nozzles. The inlet portions are communicated with the corresponding separate chambers. Liquid is supplied from the common chamber to the separate chambers through the inlet portions. The filter unit is disposed between the inlet portions and the common chamber to filter liquid in an area across the separate chambers in a first direction in which the nozzles are arrayed. The ribs are disposed in the filter unit at intervals corresponding in size to at least two of the separate chambers in the first direction to partition the filter unit. The inlet portions are communicated in the first direction with each other in at least one portion of each of the inlet portions facing the filter unit.

摘要翻译： 液体喷射头包括喷嘴，分离的室，公共室，入口部分，过滤器单元和肋。 液体的液滴从喷嘴喷出。 分开的室与喷嘴连通。 入口部分与相应的分开的室连通。 液体通过入口部分从公共室供应到分开的室。 过滤器单元设置在入口部分和公共室之间，以在喷嘴排列的第一方向上跨过分离的室的区域中的液体进行过滤。 这些肋沿着第一方向以与尺寸相对应的至少两个分离室的间隔设置在过滤器单元中，以分隔过滤器单元。 每个入口部分的至少一部分面向过滤器单元，入口部分在第一方向上彼此连通。

公开(公告)号：US07494210B2

公开(公告)日：2009-02-24

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： B41J2/045 ,  B41J2/17

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.

摘要翻译： 喷墨记录头包括基底构件，墨水通道单元，多个压电元件和动态吸振体。 墨水通道单元形成有多个喷嘴孔和多个墨水压力室。 油墨通道单元包括限定每个墨压力室的一部分的隔膜。 每个压电元件的一端固定在基座件上，另一端固定在隔膜上。 每个压电元件在位移方向上产生位移，以使膜片变形以通过多个喷嘴孔中的相应一个喷射墨滴。 动态吸振器安装在基座构件上，用于由于共振而阻尼基座构件的振动，在小于或等于预定频率的频率范围内发生共振。

公开(公告)号：US07266286B2

公开(公告)日：2007-09-04

申请号：US09992101

申请日：2001-11-14

申请人： Seiji Tanizawa ,  Satoru Tobita ,  Hideaki Miyauchi ,  Kazushi Sato ,  Keiji Hirai

发明人： Seiji Tanizawa ,  Satoru Tobita ,  Hideaki Miyauchi ,  Kazushi Sato ,  Keiji Hirai

IPC分类号： H04N5/93

CPC分类号： G11B27/036 ,  G11B27/005 ,  G11B27/034 ,  G11B27/038 ,  G11B27/34 ,  G11B2220/213 ,  G11B2220/2512 ,  G11B2220/2545 ,  G11B2220/415

摘要： Temporarily storing audio data to be reproduced in the block form, temporarily storing synthesized audio data in the block form, generating and supplying a reference signal, and calculating the first address of the block of audio data, the editing system of the present invention enables identifying the buffering position of the recording signal and then matching the position to the reproduced signal, resulting in quick editing.

摘要翻译： 临时存储要以块形式再现的音频数据，以块形式临时存储合成音频数据，生成和提供参考信号，并计算音频数据块的第一地址，本发明的编辑系统能够识别 记录信号的缓冲位置，然后将位置与再现信号进行匹配，导致快速编辑。

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。