Patents by Inventor Jong Hak Kim

Jong Hak Kim 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).

  • Patent number: 8847362
    Abstract: Provided are a nitride thin film structure and a method of forming the same. If a nitride thin film is formed on a substrate that is not a nitride, many defects are generated by a difference in lattice constants between the substrate and the nitride thin film. Also, there is a problem of warping the substrate by a difference in thermal expansion coefficients between the substrate and the nitride thin film. In order to solve the problems, the present invention suggests a thin film structure in which after coating hollow particles, i.e. hollow structures on the substrate, the nitride thin film is grown thereon and the method of forming the thin film structure. According to the present invention, since an epitaxial lateral overgrowth (ELO) effect can be obtained by the hollow structures, high-quality nitride thin film can be formed.
    Type: Grant
    Filed: September 7, 2009
    Date of Patent: September 30, 2014
    Assignee: SNU R&DB Foundation
    Inventors: Euijoon Yoon, Kookheon Char, Jong Hak Kim, Sewon Oh, Heeje Woo
  • Publication number: 20140007936
    Abstract: Provided are a method for patterning a mesoporous inorganic oxide film, the method including a step of forming a mesoporous inorganic oxide film using a composition containing inorganic oxide particles; and a step of forming a pattern on the mesoporous inorganic oxide film using an elastic stamp for pattern formation, and then calcining the mesoporous inorganic oxide, and an electronic device including a mesoporous inorganic oxide film that has been patterned by the patterning method.
    Type: Application
    Filed: July 3, 2013
    Publication date: January 9, 2014
    Inventors: EUN KYOUNG KIM, JONG HAK KIM, JEONG HUN KIM, JONG KWAN KOH, JONG BEOM NA, CHI HYUN PARK
  • Publication number: 20110156214
    Abstract: Provided are a nitride thin film structure and a method of forming the same. If a nitride thin film is formed on a substrate that is not a nitride, many defects are generated by a difference in lattice constants between the substrate and the nitride thin film. Also, there is a problem of warping the substrate by a difference in thermal expansion coefficients between the substrate and the nitride thin film. In order to solve the problems, the present invention suggests a thin film structure in which after coating hollow particles, i.e. hollow structures on the substrate, the nitride thin film is grown thereon and the method of forming the thin film structure. According to the present invention, since an epitaxial lateral overgrowth (ELO) effect can be obtained by the hollow structures, high-quality nitride thin film can be formed.
    Type: Application
    Filed: September 7, 2009
    Publication date: June 30, 2011
    Applicant: SNU R&DB FOUNDATION
    Inventors: Euijoon Yoon, Kookheon Char, Jong Hak Kim, Sewon Oh, Heeje Woo
  • Patent number: 7820908
    Abstract: Disclosed is a solid state dye-sensitized solar cell employing a composite polymer electrolyte, which includes a photoelectrode, a counter electrode, and an electrolyte interposed between the photoelectrode and counter electrode. The electrolyte includes at least one of a middle molecular substance, a polymer mixture, and inorganic nanoparticles, and a redox derivative. The dye-sensitized solar cell reduces crystallinity of the polymer electrolyte to significantly increase ionic conductivity, and enables the polymer electrolyte to smoothly permeate into a titanium oxide layer to improve mechanical properties, thereby significantly increasing energy conversion efficiency. Accordingly, the dye-sensitized solar cell assures high energy conversion efficiency without an electrolyte leak, and thus, it can be stably and practically used for a long time.
    Type: Grant
    Filed: September 22, 2004
    Date of Patent: October 26, 2010
    Assignee: Korea Institute of Science and Technology
    Inventors: Moon Sung Kang, Jong Hak Kim, Young Jin Kim, Jongok Won, Yong Soo Kang, Hoon Sik Kim
  • Publication number: 20100132291
    Abstract: A steel plate structure and a steel plate concrete wall are disclosed. A steel plate structure, which includes: a pair of steel plates, which are separated to provide a predetermined space; a structural member, which is positioned in the predetermined space, and which is structurally rigidly joined to one side of the steel plate in the direction of gravity; and a strut, which maintains a separation distance between the pair of steel plates, can be utilized to reduce the overall thickness of a steel plate concrete wall for efficient use of space, and to reduce the thickness of the steel plates for better welding properties and larger unit module sizes. Also, the axial forces or lateral forces applied on the steel plate concrete wall may be effectively resisted.
    Type: Application
    Filed: June 26, 2008
    Publication date: June 3, 2010
    Applicants: Korea Hydro & Nuclear Power Co., LTd, Korea Power Engineering Company Inc.
    Inventors: Han-Woo Lee, Jong-Bo Lee, Jong-Hak Kim, Ung-Kwon Lee, Tae-Youp Mun, Won-Sang Sun, Jin-Woo Lee, Tae-Young Kim
  • Publication number: 20090104467
    Abstract: Disclosed is a surface protective film, a method for fabricating the same, and pouch, and a method for fabricating the same. The surface protective film includes a stack of films including a middle layer, and a first skin layer and a second skin layer on opposite sides of the middle layer, wherein at least one of the first skin layer and the second skin layer is formed of a resin having a hardness lower than a hardness of a surface to be protected by the surface protective film, and the middle layer is formed of a resin including high density polyethylene, thereby permitting protection of a display surface without formation of scratch at a very low cost compared to the related art without aging and with slip.
    Type: Application
    Filed: October 20, 2008
    Publication date: April 23, 2009
    Inventors: Ki Mock Son, Jong Hak Kim, Young Hee Kim, Han Jun Kang, Hee Sik Han, Sang Min Lee, Jong Seon Kim
  • Patent number: 7179321
    Abstract: The present invention relates to a facilitated transport membrane for separation of alkene hydrocarbons from hydrocarbon mixtures, comprising a porous support and a solid polymer electrolyte consisting of a transition metal salt and a polymer having phthalic structure, in which the electrolyte is in solid state at its operating temperature. The facilitated transport membrane is prepared by forming a solid polymer electrolyte consisting of a transition metal salt and a polymer on a porous support. The transition metal salt can selectively and reversibly form a complex with alkene hydrocarbons and the polymer can dissociate the transition metal salt. In particular, the polymer matrix allows the transition metal salt to be well dissociated because it has a phthalic structure capable of being coordinated to a transition metal ion.
    Type: Grant
    Filed: April 9, 2004
    Date of Patent: February 20, 2007
    Assignee: Korea Institute of Science and Technology
    Inventors: Yong Soo Kang, Hoon Sik Kim, Jong Hak Kim, Kookheon Char, Sang Wook Kang, Jongok Won
  • Publication number: 20040211319
    Abstract: The present invention relates to a facilitated transport membrane for separation of alkene hydrocarbons from hydrocarbon mixtures, comprising a porous support and a solid polymer electrolyte consisting of a transition metal salt and a polymer having phthalic structure, in which the electrolyte is in solid state at its operating temperature. The facilitated transport membrane is prepared by forming a solid polymer electrolyte consisting of a transition metal salt and a polymer on a porous support. The transition metal salt can selectively and reversibly form a complex with alkene hydrocarbons and the polymer can dissociate the transition metal salt. In particular, the polymer matrix allows the transition metal salt to be well dissociated because it has a phthalic structure capable of being coordinated to a transition metal ion.
    Type: Application
    Filed: April 9, 2004
    Publication date: October 28, 2004
    Inventors: Yong Soo Kang, Hoon Sik Kim, Jong Hak Kim, Kookheon Char, Sang Wook Kang, Jongok Won
  • Publication number: 20040200355
    Abstract: The present invention relates to a facilitated transport membrane for separation of alkene hydrocarbons from hydrocarbon mixtures, comprising a porous supported membrane and a transition metal salt-polymer membrane consisting of a transition metal and a polymer, in which the transition metal salt does not chemically react with the polymer but physically dispersed within the polymer which has no functional group capable of forming a complex with the transition metal salt. The facilitated transport membrane according to the present invention is prepared by forming a solid transition metal salt-polymer membrane consisting of a transition metal salt and a polymer capable of dispersing the transition metal salt on the molecular scale; and coating the solid membrane on a porous supported membrane with good permeance and superior mechanical strength.
    Type: Application
    Filed: December 31, 2003
    Publication date: October 14, 2004
    Inventors: Jong Hak Kim, Yong Soo Kang, Bumsuk Jung, Jongok Won, Byoung Ryul Min, Hoon Sik Kim
  • Publication number: 20040202870
    Abstract: The present invention relates to a facilitated transport membrane for separation of alkene hydrocarbons from hydrocarbon mixtures, comprising a porous supported membrane and a solid polymer electrolyte layer consisting of a transition metal salt and a polymer having double carbon bonds. The facilitated transport membrane according to the present invention is prepared by forming a solid polymer electrolyte layer on a porous supported membrane, in which the solid polymer electrolyte consists of a transition metal salt and a polymer having double carbon bonds capable of selectively and reversibly forming a complex with alkene hydrocarbons. In particular, the polymer matrix allows the transition metal salt to be well dissociated because it contains carbon double bonds capable of forming a complex with an ion of a transition metal.
    Type: Application
    Filed: October 31, 2003
    Publication date: October 14, 2004
    Inventors: Jong Hak Kim, Yong Soo Kang, Bumsuk Jung, Jongok Won, Byoung Ryul Min, Hoon Sik Kim
  • Patent number: 6333369
    Abstract: The present invention relates to an epoxy-based coating resin composition which facilitates the transcription of the printed letters or photographs developed by sublimation dyes on printing paper to the surface of potteries, glasses, marbles, metals or woods only by thermal treatment and more particularly, to the epoxy-based coating resin composition with 1) long-tern storage stability due to the use of a mixture of diethanolamine and triethanolamine as a hardening accelerator, 2) uniform thickness after coated, 3) less air bubbles after dried, 4) good depth in printing, and 5) a releasing property which promotes easier separation of printing paper from its coated surface after transfer-printed.
    Type: Grant
    Filed: October 19, 2000
    Date of Patent: December 25, 2001
    Assignee: Korea Research Institute of Chemical Technology
    Inventors: In-Hwan Park, Bong Keun Song, Jong Hak Kim, Bong Soo Chung
  • Patent number: 5812910
    Abstract: An easy to install and remove developing unit for an electrophotographic machine is disclosed. The developing unit contains a spring loaded handle that works in cooperation with the top cover or lid of the electrophotographic device. When the lid is opened, the spring loaded handle pops up, allowing the user to grab the handle and pull the developing unit out of the electrophotographic machine. When the lid is closed onto the handle, the cover works against the spring bias and compresses the handle into a small, compact space that fits within the electrophotographic machine. The result is a compact and efficient developing unit that allows the user to easily remove and install the developing unit into and out of the electrophotographic device.
    Type: Grant
    Filed: January 24, 1997
    Date of Patent: September 22, 1998
    Assignee: SamSung Electronics Co., Ltd.
    Inventor: Jong-Hak Kim