公开(公告)号：US20130135399A1

公开(公告)日：2013-05-30

申请号：US13407331

申请日：2012-02-28

Applicant: Tae Kyung Lee ,  Pil Joong Kang ,  Hwa Sun Lee

Inventor： Tae Kyung Lee ,  Pil Joong Kang ,  Hwa Sun Lee

IPC: B41J2/045 ,  H01L41/22 ,  H01L41/02

CPC classification number: B41J2/14233 ,  B41J2002/14491 ,  B41J2202/18

Abstract: There are provided a piezoelectric actuator, an inkjet head assembly, and a method of manufacturing the same. The piezoelectric actuator includes: upper and lower electrodes providing driving voltage; and a piezoelectric substance formed between the upper and lower electrodes through solidifying a liquid piezoelectric substance, and providing driving force to ink in each of a plurality of pressure chambers provided in an inkjet head, wherein the piezoelectric substance includes a plurality of branch portions individually provided on an upper portion of each of the plurality of pressure chambers and a large area portion integrally provided while being connected to each of the plurality of branch portions at one ends of the plurality of branch portions.

Abstract translation: 提供了压电致动器，喷墨头组件及其制造方法。 压电致动器包括：提供驱动电压的上下电极; 以及通过使液体压电体固化而形成在上下电极之间的压电体，并且在设置在喷墨头中的多个压力室中的每个压力室中的墨水中提供驱动力，其中，压电体包括多个分支部， 在所述多个压力室的每一个的上部，以及在所述多个分支部的一端连接到所述多个分支部中的每一个的同时一体地设置的大面积部分。

公开(公告)号：US20120194602A1

公开(公告)日：2012-08-02

申请号：US13330051

申请日：2011-12-19

Applicant: Hyun Ho SHIN ,  Tae Kyung Lee ,  Hwa Sun Lee ,  Seung Heon Han

Inventor： Hyun Ho SHIN ,  Tae Kyung Lee ,  Hwa Sun Lee ,  Seung Heon Han

IPC: B41J2/015 ,  B21D53/76

CPC classification number: B41J2/335 ,  B41J2/33575 ,  Y10T29/49401

Abstract: The present invention relates to an assembly method of an inkjet printhead assembly and an inkjet printhead assembly using the same, and more particularly, to an assembly method of an inkjet printhead assembly capable of securing a relative position between nozzles within a small error range in an inkjet printhead assembly having a side shooting head structure in which two or more head chips are bonded to a single bezel, and an inkjet printhead assembly using the same.

Abstract translation: 本发明涉及一种喷墨打印头组件和使用其的喷墨打印头组件的组装方法，更具体地，涉及一种喷墨打印头组件的组装方法，其能够将喷嘴之间的相对位置固定在小误差范围内 喷墨打印头组件具有其中两个或更多个头部芯片结合到单个边框的侧面拍摄头结构以及使用其的喷墨打印头组件。

公开(公告)号：US20120026248A1

公开(公告)日：2012-02-02

申请号：US13064388

申请日：2011-03-22

Applicant: Young Jae Kim ,  Hwa Sun Lee ,  Jae Woo Joung

Inventor： Young Jae Kim ,  Hwa Sun Lee ,  Jae Woo Joung

IPC: B41J2/04 ,  H05K13/00

CPC classification number: B41J2/14233 ,  B41J2/161 ,  B41J2/1623 ,  B41J2/1628 ,  B41J2/1629 ,  B41J2/1632 ,  B41J2/1634 ,  B41J2/1643 ,  B41J2/1646 ,  B41J2002/14491 ,  B41J2202/18 ,  Y10T29/49002

Abstract: There are provided an inkjet head assembly and a method for manufacturing the same. The inkjet head assembly includes: an inkjet head plate having an ink flow passage formed therein and having an actuator formed thereon, the actuator providing driving force for discharging ink; a flexible printed circuit board (FPCB) applying voltage to the actuator; and an intermediate substrate provided so as to electrically connect the actuator to the flexible printed circuit board and having a second bonding portion bonded to the flexible printed circuit board formed inwardly of a first bonding portion, bonded to the actuator in a width direction of the inkjet head plate.

Abstract translation: 提供了一种喷墨头组件及其制造方法。 喷墨头组件包括：具有形成在其中并具有致动器的墨水流动通道的喷墨头板，致动器提供用于排出墨水的驱动力; 柔性印刷电路板（FPCB）向致动器施加电压; 以及中间基板，其被设置为将所述致动器电连接到所述柔性印刷电路板，并且具有接合到所述柔性印刷电路板的第二接合部分，所述第二接合部分形成在第一接合部分的内侧，所述第二接合部分沿着所述喷墨 头板

公开(公告)号：US20100194828A1

公开(公告)日：2010-08-05

申请号：US12755474

申请日：2010-04-07

Applicant: Hwa-sun LEE ,  Kyo-yeol Lee ,  Tae-kyung Lee ,  Chang-youl Moon ,  Jae-woo Chung

Inventor： Hwa-sun LEE ,  Kyo-yeol Lee ,  Tae-kyung Lee ,  Chang-youl Moon ,  Jae-woo Chung

IPC: B41J2/045

CPC classification number: B41J2/14233

Abstract: An inkjet printhead and a method of driving the inkjet printhead include a flow channel substrate having a pressure chamber, and a piezoelectric actuator formed on the flow channel substrate to apply a driving force to the pressure chamber to eject ink. The piezoelectric actuator includes a piezoelectric layer formed on the flow channel substrate to correspond to the pressure chamber, and a plurality of common electrodes and a plurality of driving electrodes alternately arranged in a length direction of the piezoelectric layer.

Abstract translation: 喷墨打印头和驱动喷墨打印头的方法包括：具有压力室的流路基板和形成在流路基板上的压电致动器，用于向压力室施加驱动力以喷射油墨。 压电致动器包括形成在流路基板上以对应于压力室的压电层，以及沿压电层的长度方向交替布置的多个公共电极和多个驱动电极。

公开(公告)号：US20100171797A1

公开(公告)日：2010-07-08

申请号：US12722664

申请日：2010-03-12

Applicant: Seung-mo LIM ,  Tae-Kyung Lee ,  Chang-Youl Moon ,  Jae-woo Chung ,  Hwa-sun Lee

Inventor： Seung-mo LIM ,  Tae-Kyung Lee ,  Chang-Youl Moon ,  Jae-woo Chung ,  Hwa-sun Lee

IPC: B41J2/045

CPC classification number: B41J2/14233 ,  B41J2/055

Abstract: A piezoelectric inkjet printhead includes a manifold, a chamber array including a plurality of chambers in connection with the manifold and arranged along at least one side of the manifold, a vibrating plate to cover the plurality of chambers, and a plurality of piezoelectric actuators formed on the vibrating plate to change pressures of corresponding ones of the plurality of chambers by vibrating the vibrating plate. The plurality of chambers includes a plurality of pressure chambers disposed in a center portion of the chamber array and having corresponding ink ejecting nozzles, and at least two dummy chambers, one disposed on each side of the chamber array and having corresponding dummy nozzles that do not eject ink. A plurality of trenches may be formed in the vibrating plate between each of the piezoelectric actuators.

Abstract translation: 压电喷墨打印头包括歧管，腔室阵列，其包括与歧管连接的多个腔室，并且沿着歧管的至少一侧布置，覆盖多个腔室的振动板，以及形成在 所述振动板通过振动所述振动板来改变所述多个室中相应的室的压力。 多个室包括设置在室阵列的中心部分并具有对应的喷墨喷嘴的多个压力室，以及至少两个虚设室，一个设置在室阵列的每一侧上，并且具有不对应的虚拟喷嘴 弹出墨水。 可以在每个压电致动器之间的振动板中形成多个沟槽。

公开(公告)号：US07603756B2

公开(公告)日：2009-10-20

申请号：US11583798

申请日：2006-10-20

Applicant: Seung-mo Lim ,  Kyo-yeol Lee ,  Jae-woo Chung ,  Hwa-sun Lee ,  Jae-chang Lee

Inventor： Seung-mo Lim ,  Kyo-yeol Lee ,  Jae-woo Chung ,  Hwa-sun Lee ,  Jae-chang Lee

IPC: H04R17/00 ,  H01L41/24

CPC classification number: B41J2/161 ,  B41J2/1631 ,  B41J2/1645 ,  B41J2/1646 ,  B41J2002/1425 ,  Y10T29/42 ,  Y10T29/435 ,  Y10T29/49401

Abstract: A method of forming a piezoelectric actuator of an inkjet head formed on a vibrating plate to provide a driving power for ejecting ink to each of pressure chambers is provided. The method includes forming a lower electrode on a vibrating plate, forming a piezoelectric layer on the lower electrode to be located above each of pressure chambers, forming a protecting layer covering the lower electrode and the piezoelectric layer, exposing an upper surface of the piezoelectric layer by decreasing a thickness of the protecting layer and the piezoelectric layer, forming an upper electrode on the upper surface of the piezoelectric layer, removing the protecting layer. According to the present invention, since the piezoelectric layer having a flat upper surface is formed in uniform figure, area and thickness of the upper electrode formed thereon is uniformly controlled.

Abstract translation: 提供一种形成在振动板上的喷墨头的压电致动器的方法，以提供用于将油墨喷射到每个压力室的驱动力。 该方法包括在振动板上形成下电极，在下电极上形成压电层，位于每个压力室之上，形成覆盖下电极和压电层的保护层，暴露压电层的上表面 通过减小保护层和压电层的厚度，在压电层的上表面上形成上电极，除去保护层。 根据本发明，由于具有平坦的上表面的压电层形成均匀的图形，所以形成在其上的上电极的面积和厚度被均匀地控制。

公开(公告)号：US20090236866A1

公开(公告)日：2009-09-24

申请号：US12375373

申请日：2007-07-26

Applicant: Hwa Sun Lee

Inventor： Hwa Sun Lee

IPC: B60R19/18

CPC classification number: B60R19/18

Abstract: The present invention relates to a bumper reinforcement for an automobile, which is formed with at least two or more closed sectional surfaces at connection parts which are positioned between an impact part and tower parts, for absorbing impact energy upon collision and preventing breakage of the bumper reinforcement.

Abstract translation: 本发明涉及一种用于汽车的保险杠加强件，其在连接部分处形成有至少两个或更多个封闭的截面，所述连接部分位于冲击部件和塔架部件之间，用于在碰撞时吸收冲击能量并防止保险杠断裂 加强。

公开(公告)号：US20090015102A1

公开(公告)日：2009-01-15

申请号：US11936838

申请日：2007-11-08

Applicant: Seung-mo LIM ,  Tae-kyung LEE ,  Hwa-sun LEE

Inventor： Seung-mo LIM ,  Tae-kyung LEE ,  Hwa-sun LEE

IPC: H01L41/09 ,  H01L41/22

CPC classification number: B41J2/161 ,  B41J2/1621 ,  H01L41/257

Abstract: A method of poling a piezoelectric actuator, which can improve the uniformity of a plurality of piezoelectric actuators. In the method, a plurality of piezoelectric actuators are prepared for poling. Then, at least two preliminary poling processes are performed on the prepared piezoelectric actuators under different preliminary voltages and displacements of the piezoelectric actuators subjected to each of the at least two poling processes are measured. A relationship between a voltage and a displacement for each of the piezoelectric actuators is established. Poling voltages are calculated so that the piezoelectric actuators can have the same target displacement. Formal poling is performed on the piezoelectric actuators under the calculated poling voltages. The displacements of the piezoelectric actuators, which have completed the formal poling, are measured.

Abstract translation: 一种极化压电致动器的方法，其可以改善多个压电致动器的均匀性。 在该方法中，准备多个压电致动器用于极化。 然后，在不同的初始电压下对制备好的压电致动器进行至少两个初步极化处理，并且测量经受至少两个极化过程中的每一个的压电致动器的位移。 建立了每个压电致动器的电压和位移之间的关系。 计算极化电压，使得压电致动器可以具有相同的目标位移。 在计算出的极化电压下，对压电致动器进行正电极化。 测量完成正式极化的压电致动器的位移。

公开(公告)号：US20050190241A1

公开(公告)日：2005-09-01

申请号：US11064826

申请日：2005-02-25

Applicant: Hwa-sun Lee ,  Jae-woo Chung ,  Seung-mo Lim ,  Sung-gyu Kang

Inventor： Hwa-sun Lee ,  Jae-woo Chung ,  Seung-mo Lim ,  Sung-gyu Kang

IPC: B41J2/045 ,  B41J2/055 ,  B41J2/135 ,  B41J2/14 ,  B41J2/16

CPC classification number: B41J2/14233 ,  B41J2/161 ,  B41J2/1628 ,  B41J2/1631 ,  B41J2/1642 ,  B41J2002/14491 ,  Y10T29/42

Abstract: In a piezoelectric actuator for an ink-jet printhead, and a method of forming the same, formed on a flow path plate having a pressurizing chamber, the piezoelectric actuator for applying a driving force for ink ejection to the pressurizing chamber, the piezoelectric actuator includes a lower electrode formed on the flow path plate, a bonding pad formed on the flow path plate to be insulated from the lower electrode, wherein a driving circuit for voltage application is bonded to an upper surface of the bonding pad, a piezoelectric layer formed on the lower electrode at a position corresponding to the pressurizing chamber, wherein an end of the piezoelectric layer extends onto the bonding pad, and an upper electrode formed on the piezoelectric layer, wherein an end of the upper electrode extends beyond the end of the piezoelectric layer and contacts the upper surface of the bonding pad.

Abstract translation: 在具有加压室的流路板上形成的用于喷墨打印头的压电致动器及其形成方法中，压电致动器用于向加压室施加用于喷墨的驱动力，压电致动器包括 形成在所述流路板上的下电极，形成在所述流路板上以与所述下电极绝缘的接合焊盘，其中施加电压的驱动电路接合到所述接合焊盘的上表面，形成在所述接合焊盘的上表面上的压电层 所述下部电极在与所述加压室对应的位置处，其中所述压电层的端部延伸到所述接合焊盘上，以及形成在所述压电层上的上部电极，其中所述上部电极的端部延伸超出所述压电层的端部 并接触焊盘的上表面。

公开(公告)号：US08777378B2

公开(公告)日：2014-07-15

申请号：US13407331

申请日：2012-02-28

Applicant: Tae Kyung Lee ,  Pil Joong Kang ,  Hwa Sun Lee

Inventor： Tae Kyung Lee ,  Pil Joong Kang ,  Hwa Sun Lee

IPC: B41J2/045

CPC classification number: B41J2/14233 ,  B41J2002/14491 ,  B41J2202/18

Abstract: There are provided a piezoelectric actuator, an inkjet head assembly, and a method of manufacturing the same. The piezoelectric actuator includes: upper and lower electrodes providing driving voltage; and a piezoelectric substance formed between the upper and lower electrodes through solidifying a liquid piezoelectric substance, and providing driving force to ink in each of a plurality of pressure chambers provided in an inkjet head, wherein the piezoelectric substance includes a plurality of branch portions individually provided on an upper portion of each of the plurality of pressure chambers and a large area portion integrally provided while being connected to each of the plurality of branch portions at one ends of the plurality of branch portions.

Abstract translation: 提供了压电致动器，喷墨头组件及其制造方法。 压电致动器包括：提供驱动电压的上下电极; 以及通过使液体压电体固化而形成在上下电极之间的压电体，并且在设置在喷墨头中的多个压力室中的每个压力室中的墨水中提供驱动力，其中，压电体包括多个分支部， 在所述多个压力室的每一个的上部，以及在所述多个分支部的一端连接到所述多个分支部中的每一个的同时一体地设置的大面积部分。