Patents by Inventor Jae Woo Joung

Jae Woo 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, 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
  • 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
  • Method for manufacturing metal nanoparticles
    Patent number: 7785392
    Abstract: The present invention relates to a method for manufacturing metal nanoparticles, more particularly to a method for manufacturing metal nanoparticles, which includes: preparing a mixed solution including capping molecules, a metal catalyst, a reducing agent, and an organic solvent; adding a metal precursor to the mixed solution and raising to a predetermined temperature and stirring; and lowering the temperature of the mixed solution and producing nanoparticles. Embodiments of the invention allow the synthesis of nanoparticles, such as of single metals, metal alloys, or metal oxides, to a high concentration in a water base using a metal catalyst.
    Type: Grant
    Filed: May 15, 2007
    Date of Patent: August 31, 2010
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: In-Keun Shim, Jae-Woo Joung
  • Fabricating method of inkjet printer head
    Publication number: 20100212128
    Abstract: A method of fabricating an inkjet printer head, the method including: forming a nozzle part and a restrictor in a lower board and forming an ink chamber and an ink inlet in an upper board; joining the lower board onto an upper portion of the lower board; and joining a piezoelectric element onto a membrane of the upper board, wherein the membrane is formed, after a portion of the upper board is removed to form the ink chamber, by the remaining portion.
    Type: Application
    Filed: February 12, 2010
    Publication date: August 26, 2010
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Soon-Young Kim, Jae-Woo Joung, Won-Chul Sim
  • INK-JET HEAD
    Publication number: 20100214368
    Abstract: A ink-jet head is disclosed. The ink-jet head includes a chamber, which accommodates ink, a nozzle, which is coupled to the chamber to allow the ink to be ejected, a membrane, which is formed on the chamber at a side opposite to the nozzle, a first actuator, which is coupled to the membrane and configured to deform the membrane, and a second actuator, which is coupled to one side of the chamber and configured to deform the membrane. In accordance with an embodiment of the present invention, the ink-jet head can provide the required displacement of the membrane, even with a thin-film type actuator.
    Type: Application
    Filed: July 20, 2009
    Publication date: August 26, 2010
    Inventors: Boum-Seock Kim, Jae-Woo Joung, Ju-Hwan Yang, Young-Seuck Yoo
  • Printed wiring board and method for manufacturing the same
    Publication number: 20100209619
    Abstract: A method for manufacturing a printed wiring board having one or more layers of a conductive pattern and an insulating pattern, including forming an insulating pattern on an insulating substrate; semi-hardening at least one of the insulating substrate and the insulating pattern; forming a conductive pattern on the insulating substrate and/or the insulating pattern, thereby providing a stack structure; performing a thermal treatment on the stack structure to fully harden the semi-hardened insulating substrate and/or insulating pattern; and firing the conductive pattern. In the method, the conductive pattern and the insulating pattern are simultaneously formed on the same layer using an inkjet process.
    Type: Application
    Filed: March 30, 2010
    Publication date: August 19, 2010
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Hye Jin Cho, Jae Woo Joung, Sung Il Oh
  • Method for surface treatment of substrate and method for forming fine wiring
    Patent number: 7776407
    Abstract: The present invention related to a method for surface treatment and a method for forming fine wiring and more particularly, to a method for surface treatment of a substrate, including: preparing a substrate on which a fine wiring is to be formed; and treating the surface of the substrate with a fluorine containing liquid having a low boiling point, and a method for forming fine wiring using the same method. According to the present invention, not only the spreading of ink droplets but also the deterioration of the interface adhesion is avoided.
    Type: Grant
    Filed: April 16, 2008
    Date of Patent: August 17, 2010
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Hyun-Chul Jung, Jae-Woo Joung