Patents by Inventor Kyu-nam Joo

Kyu-nam Joo 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).

  • Publication number: 20110118123
    Abstract: A super-conductive nanoparticle, a super-conductive nanoparticle powder, and a lithium battery including the super-conductive nanoparticle powder.
    Type: Application
    Filed: October 14, 2010
    Publication date: May 19, 2011
    Applicant: Samsung SDI Co., Ltd.
    Inventors: So-Ra LEE, Jae-Myung KIM, Kyu-Nam JOO, Young-Su KIM, Deok-Hyun KIM, Gu-Hyun CHUNG
  • Publication number: 20110085965
    Abstract: A lithium titanium oxide for an anode active material of a lithium rechargeable battery, wherein a X-ray diffraction (XRD) spectrum has a first peak of Li4Ti5O12 and a second peak, and A50-55/A78-80 is in a predetermined range, as a result of XRD analysis, where A78-80 is an Area of the first peak and A50-55 is an Area of the second peak in XRD.
    Type: Application
    Filed: October 7, 2010
    Publication date: April 14, 2011
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Jong-Hee LEE, Young-Su KIM, Jae-Myung KIM, Kyu-Nam JOO, So-Ra LEE, Deok-Hyun KIM, Gu-Hyun CHUNG, Beom-Kwon KIM, Yong-Mi YU
  • Publication number: 20110086275
    Abstract: A spherical primary particle of a lithium titanium oxide of which average diameter is in the range of about 1 to about 20 ?m, a method of preparing the spherical primary particle of the lithium titanium oxide, and a lithium rechargeable battery including the spherical primary particle of the lithium titanium oxide.
    Type: Application
    Filed: October 5, 2010
    Publication date: April 14, 2011
    Applicant: SAMSUNG SDI CO., LTD.,
    Inventors: Jong-Hee LEE, Young-Su KIM, Jae-Myung KIM, Kyu-Nam JOO, So-Ra LEE, Deok-Hyun KIM, Gu-Hyun CHUNG, Beom-Kwon KIM, Yong-Mi YU
  • Publication number: 20110081576
    Abstract: A negative electrode for a lithium battery, a method of manufacturing the same, and a lithium battery including the negative electrode, the negative electrode including a collector; and an active material layer, wherein the active material layer includes an indium tin oxide material capable of intercalation and deintercalation of lithium ions.
    Type: Application
    Filed: August 11, 2010
    Publication date: April 7, 2011
    Inventors: Gu-Hyun Chung, Jae-Myung Kim, Kyu-Nam Joo, So-Ra Lee, Jong-Hee Lee, Young-Su Kim, Deok-Hyun Kim
  • Publication number: 20110074284
    Abstract: A composition for a protective layer of a plasma display panel includes a metal oxide powder containing a metal selected from Mg, Cu, Ca, Sr, Ba, Zn, Mn, Fe, Al, Ti, Zr, Sn, Ce and combinations thereof, a dispersing agent, and a solvent selected from nitrile compounds, tertiary alkyl acetates, alkylene glycol alkyl ethers, dichloromethane, tetrahydrofuran and combinations thereof. Also, a plasma display panel includes a protective layer formed of the composition for a protective layer, and a manufacturing method thereof.
    Type: Application
    Filed: February 23, 2010
    Publication date: March 31, 2011
    Inventors: Jong-Hee Lee, Kyu-Nam Joo, Jae-Myung Kim, Dong-Hyun Kang, Young-Su Kim
  • Publication number: 20110049440
    Abstract: A method of preparing a conductive nano ink composition. The method includes preparing a low temperature solution by adding a portion of a metal ion solution in a mixture solvent obtained by mixing polyethylene glycol and polyvinyl alcohol, and mixing the rest of the metal ion solution to the low temperature solution.
    Type: Application
    Filed: July 2, 2010
    Publication date: March 3, 2011
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Jong-Hee Lee, Kyu-Nam Joo, Jae-Myung Kim, So-Ra Lee
  • Publication number: 20110052997
    Abstract: A negative electrode for a lithium battery includes an active material layer and a current collector. The active material layer has a plurality of crystal grains and the plurality of crystal grains include a plurality of pores. A first pore of the plurality of pores has a first length and a second length, the first length being the maximum length orthogonal to the current collector and the second length being the maximum length orthogonal to the first length, and the first length is greater than the second length.
    Type: Application
    Filed: June 21, 2010
    Publication date: March 3, 2011
    Inventors: Beom-Kwon Kim, Kyu-Nam Joo, Jae-Myung Kim, So-Ra Lee, Jong-Hee Lee, Young-Su Kim, Deok-Hyun Kim, Gu-Hyun Chung
  • Publication number: 20110042125
    Abstract: A conductive ink including metal ions, a functional solvent, and a capping agent, a method of preparing a metal wiring using the conductive ink, and a printed circuit board including the metal wiring.
    Type: Application
    Filed: June 16, 2010
    Publication date: February 24, 2011
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Jong-Hee LEE, Jae-Myung Kim, Kyu-Nam Joo, So-Ra Lee, Jae-Sun Jeong
  • Publication number: 20110037035
    Abstract: A method of preparing a conductive nano ink composition. The method includes mixing a metal precursor in a solution of a multi-functional polymer having a chemical reduction function and a particle growth suppression function to form a mixture solution, forming primary particles by stirring the mixture solution at about 800 to about 1,200 rpm for about 10 to about 20 minutes, and forming secondary particles by leaving the mixture solution at room temperature.
    Type: Application
    Filed: June 14, 2010
    Publication date: February 17, 2011
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Jong-Hee Lee, Jae-Myung Kim, Kyu-Nam Joo
  • Patent number: 7804235
    Abstract: Electron emission devices include first electrodes on a substrate extending in a first direction and spaced apart from each other. Second electrodes are on the substrate alternating between the first electrodes and extending in a second direction opposing the first direction. First electron emitters and second electron emitters are on side surfaces of the first electrodes and the second electrodes, respectively. Gaps are formed between the first electron emitters and second electron emitters.
    Type: Grant
    Filed: June 25, 2008
    Date of Patent: September 28, 2010
    Assignee: Samsung SDI Co., Ltd.
    Inventors: So-Ra Lee, Jae-Myung Kim, Yoon-Jin Kim, Hee-Sung Moon, Kyu-Nam Joo, Hyun-Ki Park, Young-Suk Cho
  • Publication number: 20100178434
    Abstract: Disclosed is a conductive ink composition for a flexible printed circuit (FPC), and a method of producing a printed board using the same. The conductive ink composition for a flexible printed circuit (FPC) includes a Ag-containing compound, a dispersion stabilizer, and a solvent.
    Type: Application
    Filed: December 17, 2009
    Publication date: July 15, 2010
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Jong-Hee Lee, Jae-Myung Kim, Kyu-Nam Joo, So-Ra Lee, Jae-Sun Jeong
  • Publication number: 20100178420
    Abstract: Disclosed are a method of preparing a conductive ink composition for a flexible printed circuit (FPC) and a method of producing a printed circuit board using the conductive ink composition. This method includes preparing a first solution by mixing a Ag-containing compound and a fatty acid dispersion stabilizer in a polar solvent; preparing a second solution including Ag nanoparticles reduced from the Ag-containing compound by adding a reducing agent to the first solution; phase-transitioning the Ag nanoparticles into a nonpolar solvent by adding a phase-transition agent and a nonpolar solvent to the second solution including the Ag nanoparticles; and separating the nonpolar solvent including the Ag nanoparticles therefrom.
    Type: Application
    Filed: December 17, 2009
    Publication date: July 15, 2010
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Jong-Hee Lee, Jae-Myung Kim, Kyu-Nam Joo, So-Ra Lee, Jae-Sun Jeong
  • Publication number: 20100141115
    Abstract: A light emission device including: first substrate and second substrates facing each other with a vacuum region therebetween; an electron emission region at a surface of the first substrate facing the second substrate; a driving electrode at the surface of the first substrate and for controlling an amount of electrons emitted from the electron emission region; an anode at a surface of the second substrate facing the first substrate; a phosphor layer on one surface of the anode and for receiving the electrons emitted from the electron emission region; and a reflective layer covering the phosphor layer, wherein the reflective layer comprises a first reflective layer comprising Al and a second reflective layer comprising Ag. Here, the light emission device according an embodiment of the present invention to the present invention has a reflective layer that is highly reflective, so as to improve cathode luminous efficiency of the phosphor layer.
    Type: Application
    Filed: October 22, 2009
    Publication date: June 10, 2010
    Inventors: Yoon-Jin Kim, Jae-Myung Kim, Kyu-Nam Joo, Sang-Jin Lee, So-Ra Lee, Jong-Hee Lee, Jae-Sun Jeong
  • Publication number: 20100141111
    Abstract: A composition for an integrated cathode-electron emission source includes (A) 0.5 to 60 wt % of a metal powder, (B) 0.1 to 10 wt % of a carbon-based material, (C) 1 to 40 wt % of an inorganic filler, and (D) 5 to 95 wt % of a vehicle. A method of making an integrated cathode-electron emission source includes coating the composition on a substrate, and heat treating the coated substrate. An electron emission device includes a first substrate and a second substrate facing each other, an integrated cathode-electron emission source including a metal and a carbon-based electron emission source on one surface of the first substrate, and a light emitting unit on one surface of the second substrate.
    Type: Application
    Filed: December 4, 2009
    Publication date: June 10, 2010
    Inventors: So-Ra Lee, Jae-Myung Kim, Yoon-Jin Kim, Kyu-Nam Joo, Jae-Sun Jeong
  • Publication number: 20100133986
    Abstract: A light emission device includes: a first substrate and a second substrate arranged opposite each other with a vacuum region therebetween; an electron emission region located at a side of the first substrate facing the second substrate; a driving electrode located on the first substrate and for controlling an emitting current amount (e.g., magnitude) of the electron emission region; an anode located at a side of the second substrate facing the first substrate; a phosphor layer on one surface of the anode and corresponding to pixel areas; and a spray coated Ag reflective layer covering the phosphor layer and having reflectivity between about 90% and about 99.9%.
    Type: Application
    Filed: December 3, 2009
    Publication date: June 3, 2010
    Inventors: Yoon-Jin Kim, Jae-Myung Kim, Kyu-Nam Joo, Jong-Hee Lee, So-Ra Lee, Jae-Sun Jeong
  • Publication number: 20100045166
    Abstract: An electron emitting device includes a substrate, a plurality of first wiring units, each of the plurality of first wiring units including a plurality of first electrodes extending in a first direction on the substrate and spaced apart from each other, a plurality of second wiring units, each of the plurality of second wiring units including a plurality of second electrodes each extending in a direction substantially opposite to the first direction and interposed between adjacent first electrodes of the plurality of first electrodes, and a plurality of first electron emitters at sides of the first electrodes and a plurality of second electron emitters at sides of the second electrodes, wherein at least one of the plurality of first wiring units or the plurality of second wiring units is configured to be driven separately.
    Type: Application
    Filed: August 7, 2009
    Publication date: February 25, 2010
    Inventors: So-Ra Lee, Jae-Myung Kim, Hee-Sung Moon, Yoon-Jin Kim, Kyu-Nam Joo, Hyun-Ki Park, Young-Suk Cho
  • Publication number: 20100019652
    Abstract: An electron emission device includes a substrate; first electrodes on the substrate and spaced apart from each other in a first direction; a second electrode electrically insulated from the first electrodes and extending in a second direction crossing the first direction; and electron emitters located on sides of each of the first electrodes.
    Type: Application
    Filed: June 26, 2009
    Publication date: January 28, 2010
    Inventors: So-Ra Lee, Jae-Myung Kim, Yoon-Jin Kim, Hee-Sung Moon, Kyu-Nam Joo, Hyun-Ki Park
  • Publication number: 20090316067
    Abstract: A light emission device includes first and second substrates facing each other. An electron emission unit is located on a surface of the first substrate and that has an electron emission element. A light emission unit is located on a surface of the second substrate. The electron emission element has first electrodes located on a surface of the first substrate and spaced apart from each other. Second electrodes are located between the first electrodes in parallel with each other. Electron emission regions are located on side surfaces of the first electrodes facing the second electrodes. The first and second electrodes are oblique relative to one of planar orthogonal coordinate directions of the first substrate.
    Type: Application
    Filed: June 23, 2009
    Publication date: December 24, 2009
    Inventors: So-Ra Lee, Jae-Myung Kim, Kyu-Nam Joo, Yoon-Jin Kim, Jae-Sun Jeong
  • Publication number: 20090310333
    Abstract: An electron emission device includes a base substrate and first electrodes formed on the base substrate in one direction. Second electrodes are formed on the base substrate in the one direction and spaced apart from the first electrodes by a predetermined interval and parallel to each other. First electron emission layers are formed on the first electrodes. Second electron emission layers are formed on the second electrodes. The interval between adjacent first and second electrodes is substantially equal to an interval between adjacent first and second electron emission layers.
    Type: Application
    Filed: January 30, 2009
    Publication date: December 17, 2009
    Inventors: So-Ra Lee, Jae-Myung Kim, Yoon-Jin Kim, Hee-Sung Moon, Kyu-Nam Joo, Hyun-Ki Park, Young-Suk Cho
  • Publication number: 20090225516
    Abstract: A flat panel display apparatus includes a display unit for displaying images, a first semiconductor and a second semiconductor electrically connected to the display unit, and a heat sink electrically connected to the first semiconductor and to the second semiconductor.
    Type: Application
    Filed: December 30, 2008
    Publication date: September 10, 2009
    Inventors: So-Ra Lee, Jae-Myung Kim, Yoon-Jin Kim, Hee-Sung Moon, Kyu-Nam Joo, Hyun-Ki Park