公开(公告)号：US20080316280A1

公开(公告)日：2008-12-25

申请号：US12213457

申请日：2008-06-19

Applicant: Tokahiro Yamada ,  Tomohiko Koda ,  Hitoshi Kida

Inventor： Tokahiro Yamada ,  Tomohiko Koda ,  Hitoshi Kida

IPC: B41J2/045 ,  H01L41/02

CPC classification number: B41J2/1612 ,  B41J2/04506 ,  B41J2/0456 ,  B41J2/04581 ,  B41J2/14201 ,  B41J2/14209 ,  B41J2/14233 ,  B41J2/14274 ,  B41J2/161 ,  B41J2/162 ,  H01L41/083 ,  H01L41/257 ,  Y10T29/42 ,  Y10T29/49004 ,  Y10T29/49169 ,  Y10T29/49401

Abstract: A liquid discharging head includes: a plurality of nozzles that discharge liquid droplets; and a plurality of piezoelectric elements that generate pressure for discharging liquid droplets from the respective nozzles, wherein the piezoelectric elements are performed with repolarization process to set non-uniformity of the droplet discharging characteristics of the nozzles to be in a predetermined range by combining adjustment of a polarization sensitivity and adjustment of a polarization voltage for each of the piezoelectric elements.

Abstract translation: 液体排出头包括：排出液滴的多个喷嘴; 以及多个压电元件，其产生用于从各个喷嘴排出液滴的压力，其中，通过复极化处理执行压电元件，以通过组合调节喷嘴将喷嘴的液滴喷射特性的不均匀性设定在预定范围内 偏振灵敏度和每个压电元件的极化电压的调节。

公开(公告)号：US20070132813A1

公开(公告)日：2007-06-14

申请号：US11610152

申请日：2006-12-13

Applicant: Takahiro Yamada ,  Hitoshi Kida ,  Satoru Tobita ,  Kenichi Kugai

Inventor： Takahiro Yamada ,  Hitoshi Kida ,  Satoru Tobita ,  Kenichi Kugai

IPC: B41J2/045

CPC classification number: B41J2/04588 ,  B41J2/0456 ,  B41J2/04581

Abstract: A droplet ejecting device includes a nozzle unit, a piezoelectric member and a drive voltage generating unit. The piezoelectric member has a common electrode and a discrete electrode. A first differentiation by polarization voltage of a characteristic curve indicating change in a polarization of the piezoelectric member with respect to change in the polarization voltage has a plurality of extremal values including a first extremal value at a prescribed positive voltage Vbp that is the smallest polarization voltage among plus polarization voltages corresponding to the plurality of extremal values, and a second extremal value at a prescribed negative voltage Vbn that is the largest polarization voltage among minus polarization voltages corresponding to the plurality of extremal values. The drive voltage generating unit generates a drive voltage having a range between a first negative voltage Ve1 and a first positive voltage Ve2, and applies the drive voltage between the common electrode and the discrete electrode. Vbp, Vbn, Ve1, and Ve2 are set such that Vbn

Abstract translation: 液滴喷射装置包括喷嘴单元，压电构件和驱动电压产生单元。 压电元件具有公共电极和分立电极。 指示压电元件的极化相对于极化电压的变化的特性曲线的极化电压的第一微分值具有多个极值，包括作为最小极化电压的规定正电压Vbp的第一极值 在与多个极值对应的正极化电压之间的第二极值和在与多个极值对应的负极化电压之中的最大极化电压的规定负电压Vbn处的第二极值。 驱动电压产生单元产生具有第一负电压Ve 1和第一正电压Ve 2之间的范围的驱动电压，并且在公共电极和离散电极之间施加驱动电压。 Vbp，Vbn，Ve1和Ve2被设置为使得Vbn

公开(公告)号：US07182421B2

公开(公告)日：2007-02-27

申请号：US10753876

申请日：2004-01-09

Applicant: Shinya Kobayashi ,  Hitoshi Kida ,  Yoshihiro Arai

Inventor： Shinya Kobayashi ,  Hitoshi Kida ,  Yoshihiro Arai

IPC: B41J29/38

CPC classification number: B41J2/04551 ,  B41J2/04581

Abstract: In an inkjet device that ejects ink on a medium with an inkjet head, data conversion software generates ejection data and timing control data from pattern data that describe patterns of ejection target pixels. A timing control board outputs a drive waveform generation trigger signal and a data transfer request signal to a drive waveform generator board and a memory board, respectively. The drive waveform generator board generates drive waveforms according to drive waveform generation trigger signal. The memory board transfers ejection data to the driver board according to the data transfer request signal. The driver board controls ink ejection of each nozzle based on the ejection data. Therefore, the inkjet device is capable of highly accurate positioning of ink ejection with almost no increase in the amount of data.

Abstract translation: 在使用喷墨头喷射介质的喷墨设备中，数据转换软件从描述喷射目标像素的图案的图案数据生成喷射数据和定时控制数据。 定时控制板分别向驱动波形发生器板和存储器板输出驱动波形产生触发信号和数据传送请求信号。 驱动波形发生器板根据驱动波形产生触发信号产生驱动波形。 存储板根据数据传送请求信号将喷射数据传送到驱动器板。 驱动板基于喷射数据控制每个喷嘴的喷墨。 因此，喷墨装置能够高精度地定位喷墨，几乎不增加数据量。

公开(公告)号：US20060132548A1

公开(公告)日：2006-06-22

申请号：US11303912

申请日：2005-12-19

Applicant: Takahiro Yamada ,  Shinya Kobayashi ,  Satoru Tobita ,  Katsuya Kawai ,  Hitoshi Kida

Inventor： Takahiro Yamada ,  Shinya Kobayashi ,  Satoru Tobita ,  Katsuya Kawai ,  Hitoshi Kida

IPC: B41J2/045

CPC classification number: B41J2/14274

Abstract: An ink jet recording head unit includes a plurality of nozzle elements, a plurality of piezoelectric elements and a driving unit. The plurality of piezoelectric elements is provided in one-to-one correspondence with the plurality of nozzle elements. Each piezoelectric element has a positive pole and a negative pole. Each piezoelectric element expands and contracts when a voltage potential difference between the positive pole and the negative pole is varied. The plurality of nozzle elements includes a first nozzle element and a second nozzle element adjacent to the first nozzle element. A first piezoelectric element and a second piezoelectric element correspond to the first nozzle element and the second nozzle element respectively. The driving unit controls the first piezoelectric element and the second piezoelectric element to expand and contract in a complementary manner.

公开(公告)号：US20060023010A1

公开(公告)日：2006-02-02

申请号：US11190015

申请日：2005-07-27

Applicant: Shinya Kobayashi ,  Hitoshi Kida ,  Takahiro Yamada

Inventor： Shinya Kobayashi ,  Hitoshi Kida ,  Takahiro Yamada

IPC: B41J29/38

CPC classification number: B41J2/04541 ,  B41J2/0458 ,  B41J2/04581 ,  B41J2/04591

Abstract: An inkjet recording device includes a nozzle module, a switching unit, a waveform generating unit, an image recognizing unit and a pulse width modulating unit. The image recognizing unit determines an ejection condition of the ink droplet ejected from the nozzle while referring to ejection data indicating a type of each pixel to be recorded, and generates switch pulse width data that includes the ejection data and the ejection condition. The pulse width modulating unit generates the switch pulse based on the switch pulse width data. The switching unit opens and closes in response to a switch pulse. An opening duration of the switch unit is variable depending on the switch pulse.

Abstract translation: 喷墨记录装置包括喷嘴模块，切换单元，波形发生单元，图像识别单元和脉冲宽度调制单元。 图像识别单元参考表示要记录的每个像素的类型的喷射数据来确定从喷嘴喷射的墨滴的喷射状态，并且生成包括喷射数据和喷射条件的切换脉冲宽度数据。 脉冲宽度调制单元根据开关脉冲宽度数据生成开关脉冲。 开关单元响应于开关脉冲而打开和关闭。 开关单元的打开持续时间根据开关脉冲而变化。

公开(公告)号：US06679586B2

公开(公告)日：2004-01-20

申请号：US10242781

申请日：2002-09-13

Applicant: Shinya Kobayashi ,  Takahiro Yamada ,  Kunio Satou ,  Hitoshi Kida

Inventor： Shinya Kobayashi ,  Takahiro Yamada ,  Kunio Satou ,  Hitoshi Kida

IPC: B41J206

CPC classification number: B41J2/04581 ,  B41J2/09

Abstract: A sheet-position synchronizing signal is generated once each time a recording sheet is transported by a single-line worth of distance in a sheet feed direction. A print-driving signal and a refresh-driving signal are generated within a time interval of two successive sheet-position synchronizing signal. When the print-driving signal is applied to a piezoelectric element of a nozzle, then a print ink droplet is ejected, thereby a dot is formed on a recording sheet. On the other hand, when the refresh-driving signal is applied to the piezoelectric element, then a negatively-charged refreshing ink droplet is ejected. The refresh ink droplet refreshing ink droplet is deflected by an electric field and collected by a metal mesh without reaching the recording sheet.

Abstract translation: 每次在片材进给方向上以一行距离的方式传送记录纸时，产生纸张位置同步信号。 在两个连续的纸张位置同步信号的时间间隔内产生打印驱动信号和刷新驱动信号。 当打印驱动信号被施加到喷嘴的压电元件时，喷墨打印墨滴，从而在记录纸上形成点。 另一方面，当将刷新驱动信号施加到压电元件时，则排出带负电的刷新墨滴。 刷新的墨滴刷新墨滴通过电场偏转并被金属网收集而不到达记录片材。

公开(公告)号：US06623113B2

公开(公告)日：2003-09-23

申请号：US10285528

申请日：2002-11-01

Applicant: Takahiro Yamada ,  Hitoshi Kida ,  Kunio Satou ,  Shinya Kobayashi ,  Naoto Ueda

Inventor： Takahiro Yamada ,  Hitoshi Kida ,  Kunio Satou ,  Shinya Kobayashi ,  Naoto Ueda

IPC: B41J209

CPC classification number: B41J2/09

Abstract: An electrode plate includes a base electrode plate, an edge forming electrode plate on the base electrode plate, and an ink reception absorption bodies embedded into the edge forming electrode plate. A plurality of head modules are precisely attached to the electrode plate so that nozzle rows formed in nozzle plates of the head modules extend following corresponding windows formed in the electrode plate. Such a precise attachment is realized by matching the pinholes formed in the nozzle plates to the corresponding pinholes formed in the base electrode plate and the edge-forming electrode plate.

Abstract translation: 电极板包括基极板，基极板上的边缘形成电极板和嵌入边缘形成电极板中的吸墨体。 多个头部模块精确地附接到电极板，使得形成在头部模块的喷嘴板中的喷嘴列在电极板中形成的对应窗口之后延伸。 通过将形成在喷嘴板中的针孔与形成在基极板和边缘形成电极板中的相应的针孔相匹配来实现这种精确的附接。

公开(公告)号：US06527375B2

公开(公告)日：2003-03-04

申请号：US10002106

申请日：2001-12-05

Applicant: Shinya Kobayashi ,  Takahiro Yamada ,  Kunio Satou ,  Kazuo Shimizu ,  Hitoshi Kida

Inventor： Shinya Kobayashi ,  Takahiro Yamada ,  Kunio Satou ,  Kazuo Shimizu ,  Hitoshi Kida

IPC: B41J206

CPC classification number: B41J2/09

Abstract: A single dot on a recording medium is formed by dots of a plurality of ink droplets ejected from different orifices 201 of a head 107. For example, four dots are formed overlapping one on the other to form a single dot. In order to suppress unevenness in ink density of a recording image due to undesirably shifted impact positions of these dots, impact positions of the dots for the single dots are shifted to the right and left on purpose by ¼-dot-worth of distance for each, that is, ½-dot-worth of distance in total. This printing method has a good effect on controlling noise element, which has a high special frequency and causes uneven ink density.

Abstract translation: 记录介质上的单个点由从头部107的不同孔201喷出的多个墨滴的点形成。例如，四个点形成为彼此重叠以形成单个点。 为了抑制由于这些点的不期望的偏移冲击位置引起的记录图像的墨水浓度的不均匀性，单个点的点的冲击位置向右和向左移动，每个点的距离为1/4点 ，即总共有1/2点的距离。 这种打印方法对控制噪声要素具有很好的效果，具有高特殊频率并导致油墨密度不均匀。

公开(公告)号：US06508537B2

公开(公告)日：2003-01-21

申请号：US09925603

申请日：2001-08-10

Applicant: Takahiro Yamada ,  Shinya Kobayashi ,  Kunio Satou ,  Katsunori Kawasumi ,  Kazuo Shimizu ,  Hitoshi Kida

Inventor： Takahiro Yamada ,  Shinya Kobayashi ,  Kunio Satou ,  Katsunori Kawasumi ,  Kazuo Shimizu ,  Hitoshi Kida

IPC: B41J2155

CPC classification number: B41J2/155 ,  B41J2/085 ,  B41J2/09 ,  B41J2202/20

Abstract: An ink jet recording device 10 includes a plurality of head modules 210 each formed with a plurality of nozzles for forming dots on a recording sheet 100. When the assembly of the head modules 210 has any positional error, recorded dots will shift to undesirable positions. However, the ink jet recording device 10 of the present invention adjust the dot forming positions to desirable positions in an electrical manner without actually and mechanically moving the head modules 210, both in directions perpendicular to and parallel with a nozzle line.

公开(公告)号：US06328418B1

公开(公告)日：2001-12-11

申请号：US09632621

申请日：2000-08-04

Applicant: 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

Inventor： 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: B41J215

CPC classification number: B41J2/15 ,  B41J2202/20

Abstract: 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.

Abstract translation: 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。