Patents by Inventor Chan Kwak

Chan Kwak 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).

  • Cathode catalyst for fuel cell comprising platinum and selenium, membrane-electrode assembly for a fuel cell having the same, and fuel cell system having the same
    Patent number: 8227146
    Abstract: The present invention relates to a cathode catalyst for a fuel cell, a membrane-electrode assembly for a fuel cell including the cathode catalyst, and a fuel cell system. The cathode catalyst includes a core including RuO2, and Se and Pt. The Se and Pt are disposed to enclose the core. The cathode catalyst for a fuel cell of the present invention can have excellent catalyst efficiency, even if less platinum is included therein.
    Type: Grant
    Filed: November 23, 2007
    Date of Patent: July 24, 2012
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Myoung-Ki Min, Chan Kwak, Alexey Alexandrovichserov
  • MATERIAL FOR SOLID OXIDE FUEL CELL, CATHODE INCLUDING THE MATERIAL, AND SOLID OXIDE FUEL CELL INCLUDING THE MATERIAL
    Publication number: 20120064433
    Abstract: A material for a solid oxide fuel cell, the material including a lanthanum metal oxide having a perovskite-type crystal structure; and a ceria metal oxide, wherein the ceria metal oxide includes at least one material selected from the group consisting of metal oxides represented by Formula 1 below and metal oxides represented by Formula 2: (1-a-b)Ce1-xAxO2-?+aB2O5+bBO3 ??Formula 1 Ce1-x-yAxByO2-???Formula 2 wherein 0?a?0.01, 0?b?0.02, 0<2a+?0.02, 0<x<0.3, 0<y?0.02, ? and ? are selected so that the metal oxides of Formulas 1 and 2, respectively, are both electrically neutral, A is a rare earth metal, and B is a 5-valent metal or a 6-valent metal.
    Type: Application
    Filed: January 20, 2011
    Publication date: March 15, 2012
    Applicants: SAMSUNG ELECTRO-MECHANICS CO., LTD., SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hee-jung PARK, Chan KWAK
  • Method of forming oxide film and oxide deposition apparatus
    Patent number: 8105647
    Abstract: The present invention relates to an oxide film forming method and an oxide deposition apparatus, which make it possible to form an oxide film at a low temperature of 350° C. or less by respectively supplying a silicon-containing gas including at least one of SiH4, Si2H6, Si3H8, TEOS, DCS, HCD and TSA, a purge gas, and a reaction gas including at least one of O2, N2O, O3, H2O and H2O2 into a reaction space continuously and simultaneously while rotating gas injector, and to form an oxide film with a uniform thickness along a step of a lower structure with a micro-pattern since step coverage is improved due to an atomic layer deposition process.
    Type: Grant
    Filed: April 6, 2007
    Date of Patent: January 31, 2012
    Assignee: Jusung Engineering Co., Ltd.
    Inventors: Jin-Ho Lee, Young-Ki Han, Jae-Chan Kwak
  • SOLID OXIDE ELECTROLYTE, SOLID OXIDE FUEL CELL INCLUDING THE SOLID OXIDE ELECTROLYTE, AND METHOD OF PREPARING THE SOLID OXIDE ELECTROLYTE
    Publication number: 20110294039
    Abstract: A solid oxide electrolyte including an oxide represented by Formula 1: (1?a?b)(Ce1-xMaxO2-?)+a(Mb)+b(Mc)??Formula 1 wherein 0<a<0.2, 0<b<0.2, 0<x<0.5, ? is selected so that the Ce1-xMaxO2-? is electrically neutral, Ma is a rare-earth metal, Mb is an oxide, a nitride, or a carbide of aluminum (Al), silicon (Si), magnesium (Mg), or titanium (Ti), or a combination including at least one of the foregoing, and Mc is an oxide of a metal of Groups 6 through 11.
    Type: Application
    Filed: March 15, 2011
    Publication date: December 1, 2011
    Applicants: SAMSUNG ELECTRONICS CO., LTD., INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY, SAMSUNG SDI CO., LTD.
    Inventors: Sang-mock LEE, Hee-jung PARK, Yong-ho CHOA, Chan KWAK
  • Catalyst for a fuel cell, a method for preparing the same, and a membrane-electrode assembly for a fuel cell and a fuel cell system including the same
    Patent number: 8057961
    Abstract: The cathode catalyst includes a zeolite-containing carrier, and a ruthenium (Ru)-M-tellurium (Te) alloy supported on the carrier, where M is selected from the group consisting of tungsten (W), molybdenum (Mo), and combinations thereof. The cathode catalyst has a high activity and selectivity for a reduction reaction of an oxidant, and is highly stable under an acidic atmosphere thereby being capable of improving performances of a membrane-electrode assembly and fuel cell system.
    Type: Grant
    Filed: April 30, 2007
    Date of Patent: November 15, 2011
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Alexey Alexandrovichserov, Chan Kwak, Si-Hyun Lee
  • Supported ruthenium cathode catalyst for fuel cell
    Patent number: 8053143
    Abstract: A cathode catalyst for a fuel cell including a metal selected from the group consisting of In, Ga, and combinations thereof, and Ru—Ch supported on the metal, where Ch includes a material selected from the group consisting of S, Se, Te, and combinations thereof. In one embodiment, the Ru—Ch includes from about 70 to about 95 atom % of Ru, and from about 5 to about 30 atom % of Ch, and/or the Ru—Ch is supported in an amount from about 5 to about 80 wt % based on the Ru—Ch and the metal.
    Type: Grant
    Filed: November 30, 2006
    Date of Patent: November 8, 2011
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Alexey Alexandrovichserov, Chan Kwak, Si-Hyun Lee
  • Catalyst for a fuel cell, a method for preparing the same, a membrane-electrode assembly for a fuel cell including the same, and a fuel cell system including the same
    Patent number: 8039173
    Abstract: A cathode catalyst for a fuel cell includes a carrier and an A-B alloy supported on the carrier, where A is at least one metal selected from the group consisting of Pd, Ir, Rh, and combinations thereof, and B is at least one metal selected from the group consisting of Mo, W, and combinations thereof. The carrier is composed of at least one chalcogen element selected from the group consisting of S, Se, Te, and combinations thereof.
    Type: Grant
    Filed: May 14, 2007
    Date of Patent: October 18, 2011
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Alexey Alexandrovichserov, Chan Kwak, Myoung-Ki Min, Si-Hyun Lee
  • Cathode catalyst for a fuel cell, and a membrane-electrode assembly for a fuel cell and a fuel cell system comprising the same
    Patent number: 8039172
    Abstract: A cathode catalyst for a fuel cell, and a membrane-electrode assembly for a fuel cell and a fuel cell system that includes the same. The cathode catalyst includes an active material of an A-B-X compound where A is one of Cu, Ag or a combination thereof, B is one of Nb, Hf; Ta or combinations thereof, and X is one of S, Se, Te or combinations thereof, and a carbon-based material supporting the active material as a carrier.
    Type: Grant
    Filed: March 9, 2007
    Date of Patent: October 18, 2011
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Alexey Alexandrovichserov, Chan Kwak, Si-Hyun Lee
  • METAL-DOPED OXIDE, METHOD OF PREPARING THE SAME, AND SOLID OXIDE ELECTROLYTE USING THE METAL-DOPED OXIDE
    Publication number: 20110236795
    Abstract: A method of preparing a metal-doped oxide, the method including: preparing a precursor solution including a zirconium precursor or cerium precursor, a dopant metal precursor, a solvent, and a chloride salt; and heat-treating the precursor solution to prepare the metal-doped oxide.
    Type: Application
    Filed: January 20, 2011
    Publication date: September 29, 2011
    Applicants: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG SDI CO., LTD.
    Inventors: Soo-yeon SEO, Hee-jung PARK, Chan KWAK, Sang-mock LEE, Dong-hee YEON
  • FUEL ELECTRODE MATERIAL AND SOLID OXIDE FUEL CELL INCLUDING THE FUEL ELECTRODE MATERIAL
    Publication number: 20110091794
    Abstract: A fuel electrode material including a metal oxide having a perovskite type crystalline structure and represented by Formula 1: A1-xA?xB1-yB?yO3??Formula 1 wherein A and A? are different from each other and A and A? each independently include at least one element selected from the group consisting of strontium (Sr), yttrium (Y), samarium (Sm), lanthanum (La), and calcium (Ca); B includes at least one element selected from the group consisting of titanium (Ti), manganese (Mn), cobalt (Co), iron (Fe), and nickel (Ni); B? is different from B and includes at least one transition metal; x is about 0.001 to about 0.08; and y is about 0.001 to about 0.5.
    Type: Application
    Filed: October 13, 2010
    Publication date: April 21, 2011
    Applicants: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG SDI CO., LTD., INHA-INDUSTRY PARTNERSHIP INSTITUTE
    Inventors: Sang-mock LEE, Chan KWAK, Hae-jin HWANG, Jong-seol YOON, Jun LEE
  • Cathode catalyst for fuel cell, and membrane-electrode assembly for fuel cell and fuel cell system including same
    Patent number: 7923171
    Abstract: A cathode catalyst of the present invention includes an A-B-Ch compound, where A is a metal selected from the group consisting of Pt, Ru, Rh, and combinations thereof, B is a metal selected from the group consisting of Bi, Pb, Tl, Sb, Sn, In, Ga, Ge, and combinations thereof, and Ch is an element selected from the group consisting of S, Se, Te, and combinations thereof. The cathode catalyst may be used in a membrane-electrode assembly and a fuel cell.
    Type: Grant
    Filed: January 18, 2007
    Date of Patent: April 12, 2011
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Alexey Alexandrovichserov, Chan Kwak, Si-Hyun Lee
  • SOLID OXIDE ELECTROLYTE, SOLID OXIDE FUEL CELL CONTAINING THE SOLID OXIDE ELECTROLYTE, AND METHOD OF PREPARING THE SOLID OXIDE ELECTROLYTE
    Publication number: 20110081598
    Abstract: A solid oxide electrolyte including an oxygen ion conducting solid solution, wherein the solid solution is represented by Formula 1 below: Zr1-x-y-zMaxMbyMczO2-???Formula 1 wherein x is greater than 0 and less than about 0.3, y is greater than 0 and less than about 0.1, z is greater than 0 and less than about 0.1, ? is selected to make the solid solution ionically neutral, Ma, Mb, and Mc are each independently a metal selected from the group consisting of elements of Groups 3, Groups 5 through 13, and Group 14, and an ionic radius of each of Ma+3, Mb+3, and Mc+3 are different from each other.
    Type: Application
    Filed: September 23, 2010
    Publication date: April 7, 2011
    Applicants: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG SDI CO., LTD.
    Inventors: Hee-jung PARK, Sang-mock LEE, Chan KWAK, Soo-yeon SEO, Yong-ho CHOA
  • Cathode catalyst for fuel cell, method of preparing same, and membrane-electrode assembly and fuel cell comprising same
    Patent number: 7887972
    Abstract: A cathode catalyst for a fuel cell includes an Ru—Se alloy having an average particle size of less than or equal to 6 nm. The Ru—Se alloy is amorphous catalyst. A membrane electrode assembly and a fuel cell system include the cathode catalyst. A catalyst for a fuel cell is prepared by drying a ruthenium solution including a water-soluble ruthenium precursor to obtain a first dried product; subjecting the first dried product to a first heat-treatment to obtain a heat-treated product; adding an Se solution including a water-soluble Se precursor to the heat-treated product to obtain a mixture; drying the mixture to obtain a second dried product including ruthenium and Se; and subjecting the second dried product to second heat-treatment.
    Type: Grant
    Filed: November 13, 2006
    Date of Patent: February 15, 2011
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Alexey Alexandrovichserov, Chan Kwak, Ho-Jin Kweon, Si-Hyun Lee
  • Catalyst for anode of fuel cell and membrane-electrode assembly for fuel cell
    Patent number: 7858264
    Abstract: The anode catalyst for a fuel cell, the anode catalyst containing a Pd—Au—Sn alloy. The anode catalyst has an equivalent catalyst performance to that of platinum-based catalysts but costs significantly less.
    Type: Grant
    Filed: March 8, 2007
    Date of Patent: December 28, 2010
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Alexey Alexandrovichserov, Chan Kwak, Si-Hyun Lee
  • Carrier for fuel cell, and catalyst, membrane-electrode assembly, and fuel cell system including the same
    Patent number: 7858265
    Abstract: The present invention provides a carrier for a fuel cell including a cryogel-type carbon. A catalyst of the fuel cell includes the cryogel-type carbon and an active material. One of an anode and cathode of the fuel cell has the catalyst including cryogel-type carbon. The carrier for a fuel cell has excellent porosity, specific surface area, and density characteristics, and thus is capable of improving catalyst activity due to excellent catalyst-supporting efficiency, and thereby cell performance.
    Type: Grant
    Filed: July 2, 2008
    Date of Patent: December 28, 2010
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Chan Kwak, Alexey Alexandrovichserov, Soon-Ki Kang
  • Membrane-electrode assembly for mixed reactant fuel cell and mixed reactant fuel cell system including the same
    Patent number: 7824819
    Abstract: A membrane-electrode assembly for a mixed reactant fuel cell system is provided. The membrane-electrode assembly does not require a separator that physically separates the membrane-electrode assemblies from each other in a stack. The membrane-electrode assembly of the present invention instead includes an electrode substrate that is disposed on a surface of an anode or a cathode of the membrane-electrode assembly. The electrode substrate has a flow path, through which a fuel and an oxidant are supplied. The fuel and oxidant are absorbed into the electrode substrate and further into the anode and the cathode. The fuel and the oxidant are selectively oxidized and reduced in the anode and the cathode, respectively, to produce electricity.
    Type: Grant
    Filed: February 14, 2007
    Date of Patent: November 2, 2010
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Chan Kwak, Alexey Alexandrovichserov, Jun-Won Suh, Won-Hyouk Jang, Si-Hyun Lee
  • Cathode catalyst for fuel cell, and membrane-electrode assembly for fuel cell and fuel cell system comprising same
    Publication number: 20100261090
    Abstract: A cathode catalyst for a fuel cell includes Ru, Fe, and A, where A is Se or S. A cathode catalyst may also include a carbon-based material and crystalline M1-M2-Ch and amorphous M1-M2-Ch supported on the carbon-based material, where M1 is a metal selected from the group consisting of Ru, Pt, Rh, and combinations thereof, M2 is a metal selected from the group consisting of W, Mo, and combinations thereof, and Ch is a chalcogen element selected from the group consisting of S, Se, Te, and combinations thereof.
    Type: Application
    Filed: August 11, 2006
    Publication date: October 14, 2010
    Inventors: Alexey Alexandrovichserov, Chan Kwak, Si-Hyun Lee, Myoung-Ki Min
  • FUEL ELECTRODE MATERIAL, METHOD OF PREPARING THE FUEL ELECTRODE MATERIAL, AND SOLID OXIDE FUEL CELL INCLUDING THE FUEL ELECTRODE MATERIAL
    Publication number: 20100209816
    Abstract: A fuel electrode material, a method of preparing the fuel electrode material and a solid oxide fuel cell including the fuel electrode material. The fuel electrode material includes a metal oxide bound to a surface of particles, the particles including nickel, copper or a combination thereof, wherein the metal oxide is an oxide of a metal element selected from the group consisting of cerium, titanium, silicon, aluminum, zirconium and a combination including at least one of the foregoing.
    Type: Application
    Filed: February 12, 2010
    Publication date: August 19, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chan KWAK, Sang-mock LEE, Hee-jung PARK
  • NANO-POROUS NANO-COMPOSITE, METHOD OF PREPARING THE SAME, AND SOLID OXIDE FUEL CELL INCLUDING THE NANO-POROUS NANO-COMPOSITE
    Publication number: 20100203421
    Abstract: A nano-composite, including: a plurality of secondary particles, each secondary particle including a mixture of nano-size primary particles, wherein the mixture of nano-size primary particles includes particles including a nickel oxide or a copper oxide, and particles including zirconia doped with a trivalent metal element or ceria doped with a trivalent metal element, and wherein the nano-size primary particles define a plurality of nano-pores.
    Type: Application
    Filed: February 11, 2010
    Publication date: August 12, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD
    Inventors: Hee-jung PARK, Sang-mock LEE, Chan KWAK
  • Surveillance camera
    Patent number: D643455
    Type: Grant
    Filed: November 23, 2010
    Date of Patent: August 16, 2011
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Kwang Youel Raa, Ho Kyoum Kim, Hyung Chan Kwak