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    • 2. 发明申请
    • PIEZOELECTRIC INKJET HEAD
    • 压电喷头
    • US20090009565A1
    • 2009-01-08
    • US11927743
    • 2007-10-30
    • Se-young OHSang-Kwon WeeMi-Jeong Song
    • Se-young OHSang-Kwon WeeMi-Jeong Song
    • B41J2/045B41J2/17
    • B41J2/14233B41J2002/14467B41J2002/14475
    • A piezoelectric inkjet head includes a plurality of pressure chambers filled with ink that is to be ejected, a manifold to supply ink to the pressure chambers and extending in both sides of each of the pressure chambers parallel to a direction in which the pressure chambers are arranged, a restrictor to connect the manifold to each of the pressure chambers, and to be connected to both ends of each of the pressure chambers in a longitudinal direction, a plurality of piezoelectric actuators respectively corresponding to the pressure chambers, and at least one nozzle respectively connected to each of the pressure chambers, and to be symmetrically arranged with respect to the centerline in a longitudinal direction of each of the pressure chamber. The at least one nozzle includes a first nozzle and at least two second nozzles, the first nozzle is disposed to correspond to the centerline in the longitudinal direction of each of the pressure chambers, and the second nozzles are disposed in both sides of the first nozzle.
    • 一种压电式喷墨打印头,包括:多个压力室,填充有要喷射的油墨;多个歧管,用于将油墨供应到压力室,并且在每个压力室的两侧平行于压力室排列的方向延伸 连接歧管到每个压力室的限制器,并且连接到纵向方向上的每个压力室的两端,分别对应于压力室的多个压电致动器和至少一个喷嘴 连接到每个压力室,并且在每个压力室的纵向方向上相对于中心线对称布置。 所述至少一个喷嘴包括第一喷嘴和至少两个第二喷嘴,所述第一喷嘴设置成对应于每个压力室的纵向方向上的中心线,并且所述第二喷嘴设置在所述第一喷嘴的两侧 。
    • 4. 发明授权
    • Piezo-electric type inkjet printhead
    • 压电式喷墨打印头
    • US07909438B2
    • 2011-03-22
    • US11775424
    • 2007-07-10
    • Tae-kyung LeeSang-kwon WeeJae-woo ChungTae-woon ChaJae-chang Lee
    • Tae-kyung LeeSang-kwon WeeJae-woo ChungTae-woon ChaJae-chang Lee
    • B41J2/045
    • B41J2/14233B41J2/1433B41J2002/14475
    • A piezoelectric type inkjet printhead includes an upper substrate including a pressure chamber to be filled with ink that is to be ejected, a reservoir to store ink that flowed in from an ink container, a restrictor connect the reservoir to one end of the pressure chamber, an intermediate substrate comprising a damper formed on a portion of the intermediate substrate, which corresponds to other end of the pressure chamber, a lower substrate comprising a nozzle to eject ink and formed in a portion of the lower substrate, which corresponds to the damper, a hydrophobic layer formed on a bottom of the lower substrate, and a piezoelectric actuator formed on the upper substrate to supply driving power to eject ink to the pressure chamber, wherein the nozzle is formed in the lower substrate at a predetermined depth from a bottom surface of the lower substrate.
    • 压电型喷墨打印头包括:上部基板,其包括要填充要喷射的墨的压力室;存储器,用于存储从墨水容器流入的墨水;限制器将储存器连接到压力室的一端; 中间基板,包括形成在所述中间基板的与所述压力室的另一端相对应的部分上的阻尼器,下部基板,包括用于喷射墨水并形成在所述下部基板的对应于所述阻尼器的部分中的喷嘴, 形成在所述下基板的底部上的疏水层,以及形成在所述上基板上以提供驱动力以将油墨喷射到所述压力室的压电致动器,其中所述喷嘴形成在所述下基板中, 的下基板。
    • 6. 发明申请
    • PIEZO-ELECTRIC TYPE INKJET PRINTHEAD
    • PIEZO-ELECTRIC型喷墨打印机
    • US20080129799A1
    • 2008-06-05
    • US11775424
    • 2007-07-10
    • Tae-kyung LeeSang-kwon WeeJae-woo ChungTae-woon ChaJae-chang Lee
    • Tae-kyung LeeSang-kwon WeeJae-woo ChungTae-woon ChaJae-chang Lee
    • B41J2/045
    • B41J2/14233B41J2/1433B41J2002/14475
    • A piezoelectric type inkjet printhead includes an upper substrate including a pressure chamber to be filled with ink that is to be ejected, a reservoir to store ink that flowed in from an ink container, a restrictor connect the reservoir to one end of the pressure chamber, an intermediate substrate comprising a damper formed on a portion of the intermediate substrate, which corresponds to other end of the pressure chamber, a lower substrate comprising a nozzle to eject ink and formed in a portion of the lower substrate, which corresponds to the damper, a hydrophobic layer formed on a bottom of the lower substrate, and a piezoelectric actuator formed on the upper substrate to supply driving power to eject ink to the pressure chamber, wherein the nozzle is formed in the lower substrate at a predetermined depth from a bottom surface of the lower substrate.
    • 压电型喷墨打印头包括:上部基板,其包括要填充要喷射的墨的压力室;存储器,用于存储从墨水容器流入的墨水;限制器将储存器连接到压力室的一端; 中间基板,包括形成在所述中间基板的与所述压力室的另一端相对应的部分上的阻尼器,下部基板,包括用于喷射墨水并形成在所述下部基板的对应于所述阻尼器的部分中的喷嘴, 形成在所述下基板的底部上的疏水层,以及形成在所述上基板上以提供驱动力以将油墨喷射到所述压力室的压电致动器,其中所述喷嘴形成在所述下基板中, 的下基板。
    • 7. 发明授权
    • Inkjet head having piezoelectric actuator for restrictor, and image forming method and apparatus having the same
    • 具有用于限制器的压电致动器的喷墨头,以及具有该喷墨头的图像形成方法和装置
    • US08052253B2
    • 2011-11-08
    • US11758270
    • 2007-06-05
    • Sang-kwon WeeSe-young OhJae-woo Chung
    • Sang-kwon WeeSe-young OhJae-woo Chung
    • B41J2/045
    • B41J2/055B41J2/14233B41J2002/14338
    • A piezoelectric inkjet head having piezoelectric actuators for restrictors includes a flow channel plate including an ink inlet through which ink enters, a plurality of pressure chambers into which ink to be ejected is filled, a manifold which is a path to receive ink from the ink inlet and to supply the received ink to the pressure chambers, a plurality of restrictors that connect the manifold to the pressure chambers, and a plurality of nozzles to eject ink from the pressure chambers to an outside thereof. The piezoelectric inkjet head also includes a plurality of first piezoelectric actuators formed on the flow channel plate corresponding to positions of the pressure chambers to provide a driving force to each of the pressure chambers to eject ink to the outside. The piezoelectric inkjet head also includes a plurality of second piezoelectric actuators formed on the flow channel plate corresponding to positions of the restrictors to change cross-sectional areas of the restrictors.
    • 具有用于限制器的压电致动器的压电式喷墨头包括:流路板,其包括墨入口的墨入口,填充有待喷射墨的多个压力室,作为从墨入口接收墨的路径的歧管 并且将接收到的墨水供应到压力室,将歧管连接到压力室的多个限制器,以及用于将墨从压力室喷射到其外部的多个喷嘴。 压电喷墨头还包括形成在流道板上的多个第一压电致动器,其对应于压力室的位置,以向每个压力室提供驱动力以将油墨喷射到外部。 压电喷墨头还包括形成在流道板上的多个第二压电致动器,其对应于限制器的位置以改变限制器的横截面积。
    • 8. 发明授权
    • Restrictors with structure to prevent back flow and inkjet head having the same
    • 具有防止回流的结构的限流器和具有相同的喷墨头
    • US07802874B2
    • 2010-09-28
    • US11756061
    • 2007-05-31
    • Sang-kwon WeeSe-young OhJae-woo ChungMi-jeong Song
    • Sang-kwon WeeSe-young OhJae-woo ChungMi-jeong Song
    • B41J2/45
    • B41J2/055B41J2/14233B41J2002/14306B41J2202/11
    • A restrictor with a structure to prevent a back flow of ink and an inkjet head including the restrictor. In the inkjet head, an ink channel is formed in a channel plate, and the ink channel includes an ink inlet, a plurality of pressure chambers, a manifold, a plurality of restrictors respectively connecting the pressure chambers to the manifold, and a plurality of nozzles. Piezoelectric actuators are formed on the channel plate. Each of the restrictors includes a plurality of protrusions formed on an inner surface thereof in a structure suitable to increase a flow resistance of the restrictor when ink flows from the pressure chamber to the manifold through the restrictor. Each of the protrusions includes a first surface facing a flow of ink moving through the restrictor in a direction from the manifold to the pressure chamber, and a second surface facing a flow of ink moving through the restrictor in a direction from the pressure chamber to the manifold. The first surface has a low flow resistance, and the second surface has a high flow resistance. Therefore, a black flow of ink is restricted when ink is ejected, and sufficient ink can be supplied through the restrictor during an ink refill process.
    • 具有防止墨回流的结构的限流器和包括限流器的喷墨头。 在喷墨头中,在通道板中形成墨水通道,墨水通道包括墨水入口,多个压力室,歧管,分别将压力室连接到歧管的多个限流器,以及多个 喷嘴。 压电致动器形成在通道板上。 每个限流器包括形成在其内表面上的多个突起,其结构适于当油墨通过限制器从压力室流到歧管时增加限流器的流动阻力。 每个突起包括面向墨水流的第一表面,所述第一表面沿着从歧管到压力室的方向移动通过限流器;以及第二表面,所述第二表面面向墨水流动,所述第二表面沿着从所述压力室到所述压力室的方向移动通过所述限制器 多数。 第一表面具有低流动阻力,第二表面具有高流动阻力。 因此,当墨水喷射时,墨水的黑色流动受到限制,并且在填墨过程中可以通过限流器供应足够的墨水。
    • 9. 发明申请
    • RESTRICTORS WITH STRUCTURE TO PREVENT BACK FLOW AND INKJET HEAD HAVING THE SAME
    • 具有结构防止背部流动的限制器和具有其的注射头
    • US20080129798A1
    • 2008-06-05
    • US11756061
    • 2007-05-31
    • Sang-kwon WeeSe-young OhJae-woo ChungMi-jeong Song
    • Sang-kwon WeeSe-young OhJae-woo ChungMi-jeong Song
    • B41J2/045B41J2/175
    • B41J2/055B41J2/14233B41J2002/14306B41J2202/11
    • A restrictor with a structure to prevent a back flow of ink and an inkjet head including the restrictor. In the inkjet head, an ink channel is formed in a channel plate, and the ink channel includes an ink inlet, a plurality of pressure chambers, a manifold, a plurality of restrictors respectively connecting the pressure chambers to the manifold, and a plurality of nozzles. Piezoelectric actuators are formed on the channel plate. Each of the restrictors includes a plurality of protrusions formed on an inner surface thereof in a structure suitable to increase a flow resistance of the restrictor when ink flows from the pressure chamber to the manifold through the restrictor. Each of the protrusions includes a first surface facing a flow of ink moving through the restrictor in a direction from the manifold to the pressure chamber, and a second surface facing a flow of ink moving through the restrictor in a direction from the pressure chamber to the manifold. The first surface has a low flow resistance, and the second surface has a high flow resistance. Therefore, a black flow of ink is restricted when ink is ejected, and sufficient ink can be supplied through the restrictor during an ink refill process.
    • 具有防止墨回流的结构的限流器和包括限流器的喷墨头。 在喷墨头中,在通道板中形成墨水通道,墨水通道包括墨水入口,多个压力室,歧管,分别将压力室连接到歧管的多个限流器,以及多个 喷嘴。 压电致动器形成在通道板上。 每个限流器包括形成在其内表面上的多个突起,其结构适于当油墨通过限制器从压力室流到歧管时增加限流器的流动阻力。 每个突起包括面向墨水流的第一表面,所述第一表面沿着从歧管到压力室的方向移动通过限流器;以及第二表面,所述第二表面面向墨水流动,所述第二表面沿着从所述压力室到所述压力室的方向移动通过所述限制器 多数。 第一表面具有低流动阻力,第二表面具有高流动阻力。 因此,当墨水喷射时,墨水的黑色流动受到限制,并且在填墨过程中可以通过限流器供应足够的墨水。