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    Liquid ejection head, inkjet printing apparatus and liquid ejecting method
    35.
    发明授权
    Liquid ejection head, inkjet printing apparatus and liquid ejecting method 有权
    液体喷射头，喷墨打印装置和液体喷射方法

    公开(公告)号：US07938511B2

    公开(公告)日：2011-05-10

    申请号：US12199318

    申请日：2008-08-27

    申请人： Keiji Tomizawa ,  Mikiya Umeyama ,  Toru Yamane ,  Chiaki Muraoka ,  Yuichiro Akama ,  Masaki Oikawa ,  Tomotsugu Kuroda

    发明人： Keiji Tomizawa ,  Mikiya Umeyama ,  Toru Yamane ,  Chiaki Muraoka ,  Yuichiro Akama ,  Masaki Oikawa ,  Tomotsugu Kuroda

    IPC分类号： B41J2/05

    CPC分类号： B41J2/1404 ,  B41J2/14112 ,  B41J2/1433 ,  B41J2002/14169 ,  B41J2002/14185 ,  B41J2002/14403 ,  B41J2202/11

    摘要： Provided are a printing head and an inkjet printing apparatus, which eject liquid droplets without leaving behind any bubble in each nozzle, thus having an enhanced durability. An ejection port of the printing head includes a first ejection port part communicating with the atmosphere and a second ejection port part having a cross-section orthogonal to an ejection direction being larger than a cross-section of the first ejection port part orthogonal to the ejection direction, and being formed between the energy effect chamber and the first ejection port part. In addition, the second ejection port part is formed to be eccentric to an electrothermal transducing element in an ink supply direction in which ink is supplied from an ink supplying port to the bubbling chamber.

    摘要翻译： 提供了一种打印头和喷墨打印设备，其在每个喷嘴中喷射液滴而不留下任何气泡，从而具有增强的耐久性。 打印头的喷射口包括与大气连通的第一喷射口部分和具有与喷射方向正交的横截面的第二喷射口部分大于与喷射正交的第一喷射口部分的横截面 方向，并且形成在能量效应室和第一排出口部分之间。 此外，第二喷射口部分形成为沿着墨水供应方向的电热转换元件偏心，在墨水供应方向上，墨水从供墨口供给到鼓泡室。

    LIQUID EJECTION HEAD, INKJET PRINTING APPARATUS AND LIQUID EJECTING METHOD
    37.
    发明申请
    LIQUID EJECTION HEAD, INKJET PRINTING APPARATUS AND LIQUID EJECTING METHOD 有权
    液体喷射头，喷墨打印设备和液体喷射方法

    公开(公告)号：US20090058949A1

    公开(公告)日：2009-03-05

    申请号：US12199318

    申请日：2008-08-27

    申请人： Keiji Tomizawa ,  Mikiya Umeyama ,  Toru Yamane ,  Chiaki Muraoka ,  Yuichiro Akama ,  Masaki Oikawa ,  Tomotsugu Kuroda

    发明人： Keiji Tomizawa ,  Mikiya Umeyama ,  Toru Yamane ,  Chiaki Muraoka ,  Yuichiro Akama ,  Masaki Oikawa ,  Tomotsugu Kuroda

    IPC分类号： B41J2/05

    CPC分类号： B41J2/1404 ,  B41J2/14112 ,  B41J2/1433 ,  B41J2002/14169 ,  B41J2002/14185 ,  B41J2002/14403 ,  B41J2202/11

    摘要： Provided are a printing head and an inkjet printing apparatus, which eject liquid droplets without leaving behind any bubble in each nozzle, thus having an enhanced durability. An ejection port of the printing head includes a first ejection port part communicating with the atmosphere and a second ejection port part having a cross-section orthogonal to an ejection direction being larger than a cross-section of the first ejection port part orthogonal to the ejection direction, and being formed between the energy effect chamber and the first ejection port part. In addition, the second ejection port part is formed to be eccentric to an electrothermal transducing element in an ink supply direction in which ink is supplied from an ink supplying port to the bubbling chamber.

    摘要翻译： 提供了一种打印头和喷墨打印设备，其喷射液滴而不留下每个喷嘴中的任何气泡，从而具有增强的耐久性。 打印头的喷射口包括与大气连通的第一喷射口部分和具有与喷射方向正交的横截面的第二喷射口部分大于与喷射正交的第一喷射口部分的横截面 方向，并且形成在能量效应室和第一排出口部分之间。 此外，第二喷射口部分形成为沿着墨水供应方向的电热转换元件偏心，在墨水供应方向上，墨水从供墨口供给到鼓泡室。

    INKJET HEAD
    38.
    发明申请
    INKJET HEAD 有权

    公开(公告)号：US20110074884A1

    公开(公告)日：2011-03-31

    申请号：US12892228

    申请日：2010-09-28

    申请人： Chiaki Muraoka ,  Yasushi Iijima ,  Tomotsugu Kuroda ,  Naoko Tsujiuchi ,  Mikiya Umeyama ,  Masaki Oikawa ,  Yuichiro Akama ,  Keiji Tomizawa

    发明人： Chiaki Muraoka ,  Yasushi Iijima ,  Tomotsugu Kuroda ,  Naoko Tsujiuchi ,  Mikiya Umeyama ,  Masaki Oikawa ,  Yuichiro Akama ,  Keiji Tomizawa

    IPC分类号： B41J2/14

    CPC分类号： B41J2/15 ,  B41J2/14016 ,  B41J2/2125 ,  B41J2002/14475 ,  B41J2202/11

    摘要： To provide an inkjet head which includes high-density nozzle rows and which does not easily cause an ejection failure due to adhesion of ink mist around ejection orifices when a high-density image of a secondary color is printed with a small number of paths. An inkjet head includes at least two or more types of nozzle rows that eject different amounts of ink. When A is the cross section, with respect to an ink supplying direction, of an ink supply path from each ejection orifice to a supply port and L is the length of the ink supply path, the value of A/L differs between the two or more types of nozzle rows. The nozzle row of which the value of A/L is small is disposed outside an area between the nozzle rows that eject a largest amount of ink and that are arranged next to each other.

    摘要翻译： 提供一种喷墨头，其包括高密度喷嘴列，并且当以少数路径打印次高颜色的高密度图像时，由于喷墨口周围的墨雾粘附而不容易引起喷射故障。 喷墨头包括排出不同量的墨的至少两种或更多种类型的喷嘴列。 当A是相对于供墨方向的从每个喷射孔到供给口的供墨路径的横截面，L是供墨路径的长度时，A / L的值在两个或 更多类型的喷嘴行。 A / L值较小的喷嘴列配置在排出最大量的墨水并且彼此相邻布置的喷嘴列之间的区域的外侧。

    INKJET PRINT HEAD
    39.
    发明申请
    INKJET PRINT HEAD 有权
    INKJET打印头

    公开(公告)号：US20090147056A1

    公开(公告)日：2009-06-11

    申请号：US12328404

    申请日：2008-12-04

    申请人： Masaki Oikawa ,  Keiji Tomizawa ,  Mikiya Umeyama ,  Toru Yamane ,  Chiaki Muraoka ,  Yuichiro Akama ,  Tomotsugu Kuroda

    发明人： Masaki Oikawa ,  Keiji Tomizawa ,  Mikiya Umeyama ,  Toru Yamane ,  Chiaki Muraoka ,  Yuichiro Akama ,  Tomotsugu Kuroda

    IPC分类号： B41J2/05

    CPC分类号： B41J2/1404 ,  B41J2002/14185 ,  B41J2002/14403 ,  B41J2002/14475 ,  B41J2202/11

    摘要： The landing precision of ink drops is improved to improve the image quality and increase the printing speed. An inkjet print head ejects ink supplied from an ink supply port from a plurality of ejection ports respectively connecting to ink paths having different flow resistances by using energy generated by a plurality of electrothermal transducer elements respectively corresponding to the plurality of the ejection ports, wherein each of the plurality of the ejection ports connected to the ink paths having a low ink flow resistance is arranged so that the center of each of the plurality of the ejection ports is positioned farther away from the ink supply port to the center of the corresponding electrothermal transducer element than each of the plurality of the ejection ports connected to the ink paths having a high ink flow resistance.

    摘要翻译： 提高墨滴的着陆精度，提高图像质量，提高打印速度。 喷墨打印头通过使用分别对应于多个喷射口的多个电热换能器元件产生的能量，从分别连接到具有不同流动阻力的油墨通道的多个喷射口喷射从供墨口供给的墨水，其中， 连接到具有低油墨流动阻力的油墨通道的多个喷射口中的多个喷射口的中心布置成使得多个喷射口中的每个喷射口的中心位于远离供墨口至相应的电热换能器的中心 元件比连接到具有高油墨流动阻力的油墨通道的多个喷射口中的每个喷墨口。

    Liquid ejecting head unit and manufacturing method therefor
    40.
    发明授权
    Liquid ejecting head unit and manufacturing method therefor 失效
    液体喷射头及其制造方法

    公开(公告)号：US06540343B1

    公开(公告)日：2003-04-01

    申请号：US09655372

    申请日：2000-09-05

    申请人： Mikiya Umeyama ,  Yukuo Yamaguchi ,  Hiroki Tajima

    发明人： Mikiya Umeyama ,  Yukuo Yamaguchi ,  Hiroki Tajima

    IPC分类号： B41J2175

    CPC分类号： B41J2/17563 ,  B41J2/17503 ,  B41J2/17513 ,  B41J2/1752 ,  B41J2/17523 ,  B41J2/19

    摘要： A liquid ejecting head unit includes a chip head that includes a plurality of ejection outlets for ejecting droplets; a plurality of flow paths in fluid communication with the ejection outlets, respectively; a first common liquid chamber for supplying the liquid to the flow paths; a supply member having a liquid supply path for supplying the liquid to first common liquid chamber; energy generating elements, provided in the flow paths for generating energy for ejecting the droplets; a unit frame having a second common liquid chamber for accommodating the liquid to be supplied to the supply member, the unit frame being connected with the chip head; a porous member provided between the liquid supply path of the chip head and the second common liquid chamber of the unit frame; wherein a connecting portion between the chip head and the unit frame is disposed upstream of the porous member with respect to a direction of flow of the liquid from the second common liquid chamber to the liquid supply path through the porous member; wherein the porous member is inclined relative to the liquid flow direction.

    摘要翻译： 液体喷射头单元包括：芯片头，其包括用于喷射液滴的多个喷射口; 分别与喷射口流体连通的多个流路; 用于将液体供应到流路的第一公共液体室; 供应构件具有用于将液体供应到第一公共液体室的液体供应路径; 能量产生元件，设置在用于产生用于喷射液滴的能量的流动路径中; 具有第二公共液体室的单元框架，用于容纳要供应到供应构件的液体，单元框架与芯片头连接; 设置在所述芯片头的液体供给路径与所述单位框架的所述第二公共液体室之间的多孔构件; 其中，所述芯片头和所述单元框架之间的连接部分相对于所述液体从所述第二公共液体室流过所述多孔构件的液体供给路径的方向设置在所述多孔构件的上游; 其中所述多孔构件相对于所述液体流动方向倾斜。