Patents by Inventor Woo-in Joung

Woo-in Joung has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Inkjet head and manufacturing method thereof
    Publication number: 20110057991
    Abstract: There is provided an inkjet head and a manufacturing method thereof. The inkjet head includes an upper substrate formed of a silicon material and having an ink chamber storing ink provided therein; an intermediate substrate bonded to the upper substrate, formed of a low temperature co-fired ceramic material, and having a connection path and a restrictor provided therein while the connection path and the restrictor are connected to the ink chamber; and a lower substrate bonded to the intermediate substrate, formed of a silicon material, and having a nozzle connected to the connection path provided therein. According to the inkjet head and the manufacturing method thereof, the densification and facilitation of bonding between substrates are achieved by using anodic bonding between a silicon substrate and a ceramic substrate, thereby improving manufacturing yield.
    Type: Application
    Filed: December 16, 2009
    Publication date: March 10, 2011
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Suk Ho Song, Jae Woo Joung, Pil Joong Kang
  • Inkjet head and inkjet head assembly having the same
    Publication number: 20110057995
    Abstract: There is provided an inkjet head and an inkjet head assembly having the same. The inkjet head includes an inkjet head plate having a plurality of nozzles ejecting ink provided therein; pressure chambers storing ink drawn in from both outer ends of the inkjet head plate in a width direction thereof and facing each other in a direction inwards of the width direction; piezoelectric elements supplying the pressure champers with driving force allowing ink to be ejected through the nozzles connected to the pressure chambers and disposed on the pressure chambers having membranes interposed therebetween; a pressure adjusting channel connecting the pressure chambers to adjust a pressure of ink ejected through the nozzles.
    Type: Application
    Filed: December 22, 2009
    Publication date: March 10, 2011
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Yoon Sok Park, Jae Woo Joung, Jun Young Kim, Jae Chan Park, Ju Hwan Yang
  • Method of manufacturing nozzle plate and inkjet head
    Publication number: 20110041336
    Abstract: A method of manufacturing a nozzle plate, that includes: forming a nozzle by selectively etching one side of a plate substrate; forming a straight portion connecting with the nozzle by selectively etching the other side of the plate substrate; and forming a hydrophobic layer on the one side of the plate substrate, wherein the hydrophobic layer has a window formed therein, the window opening the nozzle by a circumference greater than a circumference of an end of the nozzle.
    Type: Application
    Filed: October 22, 2010
    Publication date: February 24, 2011
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Won-Chul Sim, Jae-Woo Joung, Young-Jae Kim
  • Inkjet head and method of manufacturing the same
    Publication number: 20110043564
    Abstract: An inkjet head according to an aspect of the invention may include: a flow path plate having a plurality of ink chambers; a nozzle plate having a plurality of nozzles connected to the ink chambers in order to eject ink in the ink chambers to the outside; and a temperature control unit having a heat exchange passage in at least one of the flow path plate and the nozzle plate in order to control temperature of the ink.
    Type: Application
    Filed: December 22, 2009
    Publication date: February 24, 2011
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Chang Sung Park, Jae Woo Joung, Ji Han Kwon
  • Inkjet head, method of manufacturing the same, and electrical connection device therefor
    Publication number: 20110032309
    Abstract: An inkjet head according to an aspect of the invention may include: an inkjet head body having an ink chamber provided therein and an electrode portion provided on a surface thereof adjacent to the ink chamber; a piezoelectric actuator being mounted on the surface of the inkjet head body so that the piezoelectric actuator is electrically connected to the electrode portion; and a substrate being pressed using a bonding tool so that the substrate is electrically connected to the electrode portion and the piezoelectric actuator, arranged in different planes, through a conductive adhesive.
    Type: Application
    Filed: December 18, 2009
    Publication date: February 10, 2011
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Chang Sung Park, Jae Woo Joung, Jae Sung Kim, Ju Hwan Yang, Yoon Sok Park
  • Inkjet head and method of manufacturing the same
    Publication number: 20110032314
    Abstract: An inkjet head according to an aspect of the invention may include: a manifold storing ink being injected from the outside; ink chambers receiving the ink from the manifold to eject the ink to the outside through nozzles; and a restrictor connecting the manifold and the ink chambers to each other and providing a plurality of interconnection paths.
    Type: Application
    Filed: December 18, 2009
    Publication date: February 10, 2011
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Chang Sung Park, Jae Woo Joung, Tae Gu Kim, Ha Yoon Song
  • INK RECOVERY DEVICE
    Publication number: 20110025792
    Abstract: An ink recovery device is disclosed. The ink recovery device, configured to retrieve ink being sprayed out from an inkjet printer, in accordance with an embodiment of the present invention includes: a recovery unit, which retrieves the ink; a storage, which is connected to the recovery unit and stores the retrieved ink; and a vibrating unit, which vibrates the stored ink. The ink recovery device in accordance with an embodiment of the present invention can effectively retrieve ink being sprayed out for the maintenance of an inkjet head and immediately reuse the retrieved ink while maintaining the properties of the ink.
    Type: Application
    Filed: October 13, 2010
    Publication date: February 3, 2011
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Kyoung-Jin JEONG, Jae-Woo Joung, Ro-Woon Lee, Yong-Sik Kim
  • Inkjet head and inkjet head assembly
    Publication number: 20110025794
    Abstract: There is provided an inkjet head including an inkjet head plate slantedly coupled to a cartridge supplying ink; a nozzle ejecting ink moving through a path formed inside the inkjet head plate, and formed at a flattened edge of the inkjet head plate contacting a printing medium; and an actuator provided on a surface of the inkjet head plate opposite to that coupled to the cartridge and controlling the ejection of the ink.
    Type: Application
    Filed: December 18, 2009
    Publication date: February 3, 2011
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Yoon Sok Park, Jae Woo Joung, Jae Chan Park, Ju Hwan Yang
  • Inkjet head and method of manufacturing the same
    Publication number: 20110025793
    Abstract: An inkjet head according to an aspect of the invention may include: a flow path plate having a plurality of ink chambers therein; a nozzle plate having a plurality of nozzles connected to the ink chambers in order to eject ink in the ink chambers to the outside; and air traps provided inside the flow path plate and the nozzle plate to prevent crosstalk in which vibrations for driving the ink chambers affect another adjacent ink chamber.
    Type: Application
    Filed: December 15, 2009
    Publication date: February 3, 2011
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD
    Inventors: Chang Sung Park, Jae Woo Joung, Young Seuck Yoo, Won Chul Sim, Yoon Sok Park
  • Method for manufacturing cubic copper or copper oxide nanoparticles
    Patent number: 7858025
    Abstract: The present invention relates to a method of manufacturing cubic copper nanoparticles, and in particular, to a method including (a) mixing and agitating a copper precursor and an amine compound; (b) raising the temperature of the mixed solution up to 90-170° C. and reacting it at the same temperature; (c) adding the mixture to nonaqueous solvent to lower the temperature of the solution to 20-50° C. when the incubation completes; and (d) precipitating and obtaining the nanoparticles by adding an alcohol solvent to the mixture. According to the invention, while conductive wiring is formed metal nanoparticles can be manufactured not in sphere but in cubic shape so that void between particles can be efficiently removed and the height of wiring can be raised.
    Type: Grant
    Filed: August 24, 2007
    Date of Patent: December 28, 2010
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: In-Keun Shim, Young-Soo Oh, Jae-Woo Joung
  • APPARATUS AND METHOD FOR MANUFACTURING METAL NANOPARTICLES
    Publication number: 20100319489
    Abstract: The present invention relates to an apparatus and a method of manufacturing metal nanoparticles, and more particularly to an apparatus including: a precursor supplying part which supplies a precursor solution of metal nanoparticles; a first heating part which is connected with the precursor supplying part, includes a reactor channel having a diameter of 1 to 50 mm, and is heated to the temperature range where any particle is not produced; a second heating part which is connected with the first heating part, includes a reactor channel having a diameter of 1 to 50 mm, and is heated to the temperature range where particles are produced; and a cooler which is connected with the second heating part and collects and cools metal nanoparticles produced at the second heating part which allows continuous mass production of metal nanoparticles.
    Type: Application
    Filed: August 4, 2010
    Publication date: December 23, 2010
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Young-Il LEE, Jae-Woo Joung, Byung-Ho Jun, Joon-Rak Choi, Kwi-Jong Lee
  • INKJET HEAD
    Publication number: 20100321442
    Abstract: An inkjet head is disclosed. In an embodiment of the present invention, the ink-jet head includes a chamber, which houses ink, and a nozzle, which ejects the ink housed in the chamber. Here, the nozzle is elliptical. The inkjet head can print a minute pattern and reduce its driving energy because the inkjet head can eject a smaller droplet of ink with less energy compared to the energy being applied for a conventional inkjet head.
    Type: Application
    Filed: December 11, 2009
    Publication date: December 23, 2010
    Inventors: Yoon-Sok Park, Jae-Woo Joung
  • Nozzle plate, inkjet head, and manufacturing method of the same
    Patent number: 7841698
    Abstract: A nozzle plate, inkjet head a manufacturing method of the same are disclosed. By using a method of manufacturing a nozzle plate which includes: forming a nozzle by selectively etching one side of a plate substrate, forming a straight portion connecting with the nozzle by selectively etching the other side of the plate substrate, and forming a hydrophobic layer on the one side of the plate substrate, where a window is formed in the hydrophobic layer that opens the nozzle by a circumference greater than a circumference of an end of the nozzle, the meniscus of ink can be formed to a greater size around the nozzle exit, thereby preventing degradations in ink ejection performance due to the vaporization of the solvent, and preventing blockage in the nozzles due to the clogging of particles.
    Type: Grant
    Filed: January 24, 2008
    Date of Patent: November 30, 2010
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Won-Chul Sim, Jae-Woo Joung, Young-Jae Kim
  • Method for manufaturing copper-based nanoparticles
    Publication number: 20100282022
    Abstract: The present invention relates to a method for manufacturing copper-based nanoparticles, in particular, to a method for manufacturing copper-based nanoparticles, wherein the method includes producing CuO nanoparticles by mixing CuO micropowder and alkylamine in a nonpolar solvent and heating the mixture at 60-300° C.; and producing copper-based nanoparticles by mixing a capping molecule and a reducing agent with the CuO nanoparticles and heating the mixture at 60-120° C. According to the present invention, copper-based nanoparticles can be synthesized using CuO, but not requiring any inorganic reducing agent, in a high yield and a high concentration, so that it allows mass production and easy controlling to desired oxidation number of nanoparticles.
    Type: Application
    Filed: November 28, 2007
    Publication date: November 11, 2010
    Inventors: Byung-Ho Jun, Jae-Woo Joung, Joon-Rak Choi
  • Inkjet head assembly
    Publication number: 20100283820
    Abstract: There is provided an inkjet head assembly. The inkjet head assembly includes an ink tank including a first storage part receiving ink, and a second storage part communicating with the first storage part through at least one through hole and maintaining a full ink level upon receiving ink from the first storage part, and an inkjet head connected to the second storage part by an ink supply path and ejecting ink upon receiving ink from the second storage part. The inkjet head assembly includes the ink tank supplying ink to the inkjet head and storing ink separately in the first storage part and the second storage part thereof, and the second storage part maintains a full ink level therein. Accordingly, deterioration in print quality can be minimized due to the second storage part attenuating pressure variations caused by ink movement when the inkjet assembly moves.
    Type: Application
    Filed: September 8, 2009
    Publication date: November 11, 2010
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Won Chul SIM, Jae Woo JOUNG, Young Seuck Yoo
  • Method for manufacturing metal nanoparticles comprising rod-shaped nanoparticles
    Publication number: 20100275729
    Abstract: The present invention relates to a method for manufacturing metal nanoparticles containing rod-shaped nanoparticles, the method including: producing metal oxide nanoparticle intermediates having at least rod-shaped metal oxide nanoparticles by heating a mixture of a nonpolar solvent, a metal precursor and an amine including secondary amine at 60-300° C.; producing metal nanoparticles by adding a capping molecule and a reducing agent to the mixture and heating the result mixture at 90-150° C.; and recovering the metal nanoparticles. According to the present invention, the shape of metal nanoparticle can be controlled by mixing primary amines or secondary amines as proper ratio without using apparatus additionally, as well as, the size of metal nanoparticle can be controlled to several nm.
    Type: Application
    Filed: November 28, 2007
    Publication date: November 4, 2010
    Inventors: Byung-Ho Jun, Jae-Woo Joung
  • Nanoparticles, conductive ink and circuit line forming device
    Publication number: 20100271432
    Abstract: A circuit line forming device, including an inkjet head to eject a conductive ink onto one side of a substrate, the conductive ink containing nanoparticles including a ferromagnetic core and a conductive layer surrounding the ferromagnetic core; and a magnetic field generator part, positioned on the other side of the substrate in correspondence with the inkjet head, wherein the magnetic field generator part applies a magnetic field on the conductive ink, when the conductive ink is ejected to form circuit lines.
    Type: Application
    Filed: July 2, 2010
    Publication date: October 28, 2010
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: In-Keun Shim, Jae-Woo Joung
  • Inkjet head
    Publication number: 20100265297
    Abstract: An inkjet head is disclosed. In accordance with an embodiment of the present invention, the ink-jet head that prevents a nozzle from being blocked by a residual ink droplet formed on the nozzle can include a head body having the nozzle formed on one surface thereof and an actuator, which provides pressure to the inside of the head body. Here, a transfer groove is formed on one surface of the head body, in which the transfer groove is separated from the nozzle to provide a path through which the residual ink droplet moves. Thus, the inkjet head can prevent the nozzle from being blocked by a residual ink droplet formed on the nozzle by use of the transfer groove, which provides a path for a residual ink droplet formed on the nozzle to escape.
    Type: Application
    Filed: December 17, 2009
    Publication date: October 21, 2010
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Yoon-Sok Park, Jae-Woo Joung, Young-Seuck Yoo, Chang-Sung Park, Ju-Hwan Yang
  • Method of manufacturing light emitting diode package
    Patent number: 7795055
    Abstract: There is provided a method of manufacturing a light emitting diode chip, the method including: providing a light emitting diode chip; forming a phosphor layer on a top of the light emitting diode chip; and forming phosphors of a lattice structure on the phosphor layer by an inkjet process using an ink containing phosphor powder. There is also provided A method of manufacturing a light emitting diode package, the method including: forming a phosphor layer with a predetermined thickness; forming phosphors of a lattice structure on the phosphor layer by an ink jet process using an ink containing phosphor powder; and disposing the phosphor layer having the phosphors of the lattice structure formed thereon on a top of the light emitting diode chip.
    Type: Grant
    Filed: January 10, 2008
    Date of Patent: September 14, 2010
    Assignee: Samsung LED Co., Ltd.
    Inventors: Young Il Lee, Jae Woo Joung, Joon Rak Choi
  • INK-JET HEAD AND METHOD FOR MANUFACTURING THE SAME
    Publication number: 20100220157
    Abstract: An ink-jet head and a method for manufacturing the ink-jet head are disclosed. A method for manufacturing an ink-jet head, which has a membrane formed on one side of a chamber housing ink, can include: forming a piezoelectric component over a glass substrate, attaching the piezoelectric component onto the membrane, irradiating a laser to an interface between the piezoelectric component and the glass substrate such that the piezoelectric component and the glass substrate are separated, and separating the piezoelectric component and the glass substrate. According to certain embodiments of the invention as set forth above, the actuator of the ink-jet head can be implemented in the form of a thin film, and as such, the electrical properties of the ink-jet head can be improved.
    Type: Application
    Filed: November 17, 2009
    Publication date: September 2, 2010
    Inventors: Boum-Seock Kim, Jae-Woo Joung, Ju-Hwan Yang, Young-Seuck Yoo