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    Ink jet head having an improved orifice plate, a method for manufacturing such ink jet heads, and an ink jet apparatus provided with such ink jet head
    2.
    发明授权
    Ink jet head having an improved orifice plate, a method for manufacturing such ink jet heads, and an ink jet apparatus provided with such ink jet head 有权
    具有改进的孔板的喷墨头，这种喷墨头的制造方法以及具有这种喷墨头的喷墨装置

    公开(公告)号：US06186616B1

    公开(公告)日：2001-02-13

    申请号：US09161397

    申请日：1998-09-28

    申请人： Takashi Inoue ,  Mineo Kaneko ,  Masayoshi Tachihara ,  Shuichi Murakami ,  Michinari Mizutani ,  Yuichiro Akama

    发明人： Takashi Inoue ,  Mineo Kaneko ,  Masayoshi Tachihara ,  Shuichi Murakami ,  Michinari Mizutani ,  Yuichiro Akama

    IPC分类号： B41J2135

    CPC分类号： B41J2/1643 ,  B41J2/14016 ,  B41J2/1433 ,  B41J2/1603 ,  B41J2/1629 ,  B41J2/1631 ,  B41J2/1642

    摘要： An ink jet head comprises a plurality of discharge pressure generating elements serving as the discharge pressure source for discharging an ink droplet, an orifice plate having a plurality of ink discharge ports corresponding to the respective discharge pressure generating elements formed therefor, an ink supply port for supplying ink and a nozzle wall forming an ink flow path communicating the ink discharge ports with the ink supply port. The orifice plate and the nozzle wall are formed by resin material, and also, a thin metallic film is formed on the outer surface of the orifice plate. If desired, a water-repellent film is formed further on the surface of the thin metallic film. With the metallic film formed on the surface of the orifice plate, the moisture in ink is effectively prevented from being evaporated. Further, with the provision of the metallic film, it becomes possible to perform the eutectoid plating for the formation of the water-repellent film. With the head thus structured, it becomes possible to stably obtain excellent print quality.

    摘要翻译： 喷墨头包括用作排出墨滴的排出压力源的多个排出压力产生元件，具有与其形成的各个排出压力产生元件对应的多个排墨口的孔板，用于 供给墨水和形成将墨水排出口与供墨口连通的油墨流路的喷嘴壁。 孔板和喷嘴壁由树脂材料形成，并且在孔板的外表面上形成薄金属膜。 如果需要，在薄金属膜的表面上进一步形成防水膜。 通过在孔板的表面上形成金属膜，有效地防止油墨中的水分蒸发。 此外，通过设置金属膜，可以进行用于形成防水膜的共析电镀。 通过这样构造的头部，可以稳定地获得优异的打印质量。

    Ink jet head
    5.
    发明授权
    Ink jet head 失效
    喷墨头

    公开(公告)号：US6137510A

    公开(公告)日：2000-10-24

    申请号：US969837

    申请日：1997-11-13

    申请人： Tamaki Sato ,  Yasuyuki Tamura ,  Mineo Kaneko ,  Masayoshi Tachihara ,  Yasutomo Watanabe ,  Shuichi Murakami ,  Michinari Mizutani ,  Takashi Inoue

    发明人： Tamaki Sato ,  Yasuyuki Tamura ,  Mineo Kaneko ,  Masayoshi Tachihara ,  Yasutomo Watanabe ,  Shuichi Murakami ,  Michinari Mizutani ,  Takashi Inoue

    IPC分类号： B41J2/14 ,  B41J2/05

    CPC分类号： B41J2/1404 ,  B41J2002/14403 ,  B41J2002/14467

    摘要： There is disclosed an ink jet head comprising plural discharge energy generating elements for generating energy to be used for discharging ink droplets, ink discharge openings for discharging the ink droplets, a substrate bearing thereon an array of the plural discharge energy generating elements and an ink supply aperture consisting of a penetrating hole extending along the direction of array of the discharge energy generating elements, and an orifice plate provided with the ink discharge openings, in which the substrate and the orifice plate are mutually adjoined to define therebetween ink paths connecting the ink discharge openings and the ink supply aperture, wherein the orifice plate comprises plural projections in a position corresponding to the ink supply aperture.

    摘要翻译： 公开了一种喷墨头，其包括用于产生用于排出墨滴的能量的多个排出能量产生元件，用于排出墨滴的墨排出口，其上具有多个排出能量产生元件的阵列的基底轴承和墨供给 由沿着排出能量产生元件的排列方向延伸的贯穿孔构成的孔，以及设置有排墨孔的孔板，其中基板和孔板相互邻接，以在其间限定连接油墨排出口 开口和供墨孔，其中孔板包括在与供墨孔对应的位置中的多个突起。

    Ink-jet head and ink-jet printing apparatus
    6.
    发明授权
    Ink-jet head and ink-jet printing apparatus 有权
    喷墨头和喷墨打印设备

    公开(公告)号：US06280020B1

    公开(公告)日：2001-08-28

    申请号：US09144450

    申请日：1998-09-01

    申请人： Masayoshi Tachihara ,  Michinari Mizutani

    发明人： Masayoshi Tachihara ,  Michinari Mizutani

    IPC分类号： B41J205

    CPC分类号： B41J2/15 ,  B41J2/1404 ,  B41J2/1433 ,  B41J2002/14169 ,  B41J2002/14387

    摘要： In order to enable high speed printing with maintaining reliability of ink ejection, an auxiliary hole is provided in an upper wall forming a liquid passage. An opening area of the auxiliary hole is set to be greater than or equal to three times of an opening area of an ejection opening, and a minimum distance between the auxiliary hole and the ejection opening is set to be greater than or equal to three times of a height of the liquid passage.

    摘要翻译： 为了在保持喷墨的可靠性的情况下实现高速打印，在形成液体通道的上壁中设置有辅助孔。 辅助孔的开口面积被设定为大于或等于喷射口的开口面积的三倍，并且辅助孔和喷射口之间的最小距离被设定为大于或等于三倍 的液体通道的高度。

    Ink-jet head and ink-jet printing apparatus
    7.
    发明授权
    Ink-jet head and ink-jet printing apparatus 有权
    喷墨头和喷墨打印设备

    公开(公告)号：US06471326B2

    公开(公告)日：2002-10-29

    申请号：US09900032

    申请日：2001-07-09

    申请人： Masayoshi Tachihara ,  Michinari Mizutani

    发明人： Masayoshi Tachihara ,  Michinari Mizutani

    IPC分类号： B41J29393

    CPC分类号： B41J2/1433 ,  B41J2/1404 ,  B41J2002/14169 ,  B41J2002/14387

    摘要： In order to enable high speed printing with maintaining reliability of ink ejection, an auxiliary hole is provided in an upper wall forming a liquid passage. An opening area of the auxiliary hole is set to be greater than or equal to three times of an opening area of an ejection opening, and a minimum distance between the auxiliary hole and the ejection opening is set to be greater than or equal to three times of a height of the liquid passage.

    摘要翻译： 为了在保持喷墨的可靠性的情况下实现高速打印，在形成液体通道的上壁中设置有辅助孔。 辅助孔的开口面积被设定为大于或等于喷射口的开口面积的三倍，并且辅助孔和喷射口之间的最小距离被设定为大于或等于三倍 的液体通道的高度。

    Liquid ejection method
    8.
    发明授权
    Liquid ejection method 有权

    公开(公告)号：US06612688B2

    公开(公告)日：2003-09-02

    申请号：US09988568

    申请日：2001-11-20

    申请人： Masayoshi Tachihara ,  Mineo Kaneko

    发明人： Masayoshi Tachihara ,  Mineo Kaneko

    IPC分类号： B41J205

    CPC分类号： B41J2/1404 ,  B41J2002/14169 ,  B41J2002/14387

    摘要： A liquid ejection method includes a step of preparing a liquid ejection head including an electrothermal transducer element for generating thermal energy contributable to ejection of liquid, an ejection outlet for ejecting the liquid, the ejection outlet being provided at a position opposed to the electrothermal transducer element, and a liquid flow path in fluid communication with the ejection outlet to supply the liquid to the ejection outlet and having the electrothermal transducer element on its bottom side; and a step of applying the thermal energy to the liquid to cause the liquid to undergo a change of state and thus to create a bubble. The liquid is ejected through the ejection outlet by the pressure of the bubble. The bubble is first in communication with ambience during reduction of the volume of the bubble after the bubble reaches a maximum volume.

    Liquid ejection method
    10.
    发明授权
    Liquid ejection method 有权
    液体喷射法

    公开(公告)号：US06354698B1

    公开(公告)日：2002-03-12

    申请号：US09220688

    申请日：1998-12-23

    申请人： Masayoshi Tachihara ,  Mineo Kaneko

    发明人： Masayoshi Tachihara ,  Mineo Kaneko

    IPC分类号： B41J205

    CPC分类号： B41J2/1404 ,  B41J2002/14169 ,  B41J2002/14387

    摘要： A liquid ejection method includes a step of preparing a liquid ejection head including an electrothermal transducer element for generating thermal energy contributable to ejection of liquid, an ejection outlet for ejecting the liquid, the ejection outlet being provided at a position opposed to the electrothermal transducer element, and a liquid flow path in fluid communication with the ejection outlet to supply the liquid to the ejection outlet and having the electrothermal transducer element on its bottom side; and a step of applying the thermal energy to the liquid to cause the liquid to undergo a change of state and thus to create a bubble. The liquid is ejected through the ejection outlet by the pressure of the bubble. The bubble is first in communication with ambience during reduction of the volume of the bubble after the bubble reaches a maximum volume.

    摘要翻译： 液体喷射方法包括制备包括用于产生有助于喷射液体的热能的电热转换器元件的液体喷射头的步骤，用于喷射液体的喷射出口，喷射出口设置在与电热换能器元件相对的位置 以及与喷射出口流体连通的液体流动通道，以将液体供应到喷射出口，并且在其底侧具有电热换能器元件; 以及将热能施加到液体以使液体发生状态变化并由此产生气泡的步骤。 液体通过气泡的压力通过喷射出口排出。 在泡沫达到最大体积后，气泡在气泡体积减小的过程中首先与气氛通信。