Patents by Inventor Young Min Chung

Young Min Chung 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: 20240120345
    Abstract: A display device comprises a display area comprising a plurality of pixels, and a data line and a gate line electrically connected to the plurality of pixels, a non-display area disposed adjacent to the display area, a plurality of pads disposed on a side of the non-display area, a gate control line electrically connected to at least one of the plurality of pads and that supplies a gate control signal, a driving voltage line electrically connected to at least one of the plurality of pads and that supplies a driving voltage, an antistatic circuit electrically connected to the gate control line, a scan driver that generates a gate signal based on a gate control signal received from the gate control line and that supplies the gate signal to the gate line, and a shielding layer integral to the driving voltage line to overlap the top of the antistatic circuit.
    Type: Application
    Filed: August 2, 2023
    Publication date: April 11, 2024
    Applicant: Samsung Display Co., LTD.
    Inventors: Hae Min KIM, Young Wan SEO, Geun Ho LEE, Kyung Hoon CHUNG
  • Patent number: 11953366
    Abstract: A fluid level measurement system using a buoyant body includes a guide part installed in a direction perpendicular to the bottom surface of a fluid storage tank, and provided with a space in which a fluid can move therein; a buoyant body inserted into the guide part, and configured to float along the surface of the fluid inside the guide part; and a measurement part coupled to the top end of the guide part, and configured to measure the level of the surface of the fluid inside the fluid storage tank by transmitting a signal toward the buoyant body in the inner space of the guide part and then receiving a signal reflected from the buoyant body.
    Type: Grant
    Filed: July 7, 2022
    Date of Patent: April 9, 2024
    Assignee: HANRA IMS CO., LTD
    Inventors: Suk Joon Ji, Young Gu Kim, Jong Min Chung, Chae Ho Lee, I-Hwan Cheon, Kwang Ik Chun, Dong Sik Jang
  • Patent number: 9724674
    Abstract: The present invention relates to a catalyst having surface-modified metal nanoparticles immobilized in a stationary phase in which a polymer electrolyte membrane is formed, and a preparation method thereof. The catalyst of the present invention may be used in a process for producing hydrogen peroxide by direct synthesis from oxygen and hydrogen.
    Type: Grant
    Filed: March 25, 2011
    Date of Patent: August 8, 2017
    Assignee: SK INNOVATION CO., LTD.
    Inventors: Young Min Chung, Yong Tak Kwon, Tae Jin Kim, Seung Hoon Oh, Chang Soo Lee, Bo Yeol Kim
  • Patent number: 9550174
    Abstract: This invention relates to a method of preparing a mixed manganese ferrite coated catalyst, and a method of preparing 1,3-butadiene using the same, and more particularly, to a method of preparing a catalyst by coating a support with mixed manganese ferrite obtained by co-precipitation at 10˜40° C. using a binder and to a method of preparing 1,3-butadiene using oxidative dehydrogenation of a crude C4 mixture containing n-butene and n-butane in the presence of the prepared catalyst. This mixed manganese ferrite coated catalyst has a simple synthetic process, and facilitates control of the generation of heat upon oxidative dehydrogenation and is very highly active in the dehydrogenation of n-butene.
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: January 24, 2017
    Assignee: SK INNOVATION CO., LTD
    Inventors: Yong Tak Kwon, Tae Jin Kim, Young Min Chung, Ok Youn Kim, Seung Hoon Oh
  • Patent number: 9187767
    Abstract: The present invention relates to a method for producing hydrocarbons from biomass or organic waste. The present invention provides: a method for effectively producing diverse hydrocarbons by using a raw material comprising mixed organic acids that can be obtained by anaerobic fermentation which is a fermentation process in biogasification technology; and a method for producing diverse products such as fuel, lube base oil and aromatics by using a raw material comprising mixed organic acids.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: November 17, 2015
    Assignee: SK INNOVATION CO., LTD.
    Inventors: Young Min Chung, Cher Hee Park, Young Seek Yoon, Hee Jung Jeon, Hee Soo Kim, Seung Hoon Oh, Seong Ho Lee, Ok Youn Kim
  • Patent number: 9095844
    Abstract: Disclosed herein is a catalyst for aqueous-phase reforming of biomass-derived polyols, which comprises platinum and copper as active metals and a mixture of magnesia and alumina as a support. The catalyst contains a small amount of platinum and, at the same time, has high hydrogen selectivity and low methane selectivity.
    Type: Grant
    Filed: June 29, 2010
    Date of Patent: August 4, 2015
    Assignee: SK Innovation Co., Ltd.
    Inventors: Young Min Chung, Tae Jin Kim, Seung Hoon Oh, Dilek Ayse Boga, Pieter C. A. Bruijnincx, Bert M. Weckhuysen
  • Patent number: 8784769
    Abstract: Disclosed herein is a catalyst, including, in one example: a carrier, a polymer electrolyte multilayer film formed on the carrier, and metal particles dispersed in the polymer electrolyte multilayer film. The catalyst can be easily prepared, and can be used to produce hydrogen peroxide in high yield in the presence of a reaction solvent including no acid promoter.
    Type: Grant
    Filed: April 7, 2010
    Date of Patent: July 22, 2014
    Assignee: SK Innovation Co., Ltd.
    Inventors: Young Min Chung, Yong Tak Kwon, Tae Jin Kim, Seung Hoon Oh, Chang Soo Lee, Bo Yeol Kim
  • Patent number: 8679805
    Abstract: The present invention relates to a method of economically preparing paraffin compounds corresponding to gasoline fuel or lubricating base oil using volatile fatty acids (VFAs) derived from biomass.
    Type: Grant
    Filed: March 14, 2011
    Date of Patent: March 25, 2014
    Assignee: SK Innovation Co., Ltd.
    Inventors: Young Min Chung, Ok Youn Kim, Hee Jung Jeon, Young Seek Yoon, Seong Ho Lee, Hee Soo Kim, Seung Hoon Oh, Yoon Jae Yim
  • Patent number: 8674156
    Abstract: A method of producing a mixed manganese ferrite catalyst, and a method of preparing 1,3-butadiene using the mixed manganese ferrite catalyst. Specifically, a method of producing a mixed manganese ferrite catalyst through a coprecipitation method which is performed at a temperature of 10˜40° C., and a method of preparing 1,3-butadiene using the mixed manganese ferrite catalyst through an oxidative dehydrogenation reaction, in which a C4 mixture containing n-butene, n-butane and other impurities is directly used as reactants without performing additional n-butane separation process or n-butene extraction. 1,3-butadiene can be prepared directly using a C4 mixture including n-butane at a high concentration as a reactant through an oxidative hydrogenation reaction without performing an additional n-butane separation process, and 1,3-butadiene, having high activity, can be also obtained in high yield for a long period of time.
    Type: Grant
    Filed: November 7, 2008
    Date of Patent: March 18, 2014
    Assignees: SK Innovation Co., Ltd., SK Global Chemical Co. Ltd.
    Inventors: Young Min Chung, Yong Tak Kwon, Tae Jin Kim, Seong Jun Lee, Min Su Ko, Seung Hoon Oh, Yong Seung Kim, In Kyu Song
  • Patent number: 8518853
    Abstract: Disclosed is a nano-sized Cu based catalyst and a method of preparing the same including dissolving, in an aqueous solution, a first component comprising a Cu precursor, a second component precursor comprising one or more selected from the group consisting of a transition metal, an alkaline earth metal and a Group IIIb metal, and a third component precursor comprising one or more selected from the group consisting of alumina, silica, silica-alumina, magnesia, titania, zirconia and carbon and then performing stirring; precipitating the stirred mixture solution using Na2CO3 and NaOH to form a catalyst precursor precipitate; and washing and filtering the formed catalyst precursor precipitate. Also a method of preparing alcohol is provided, including reacting hydrogen with carboxylic acid including a single acid or an acid mixture of two or more acids derived from a microorganism fermented solution, using the nano-sized Cu based catalyst.
    Type: Grant
    Filed: April 21, 2011
    Date of Patent: August 27, 2013
    Assignee: SK Innovation Co., Ltd.
    Inventors: Hee Soo Kim, Seong Ho Lee, Young Seek Yoon, Seung Hoon Oh, Young Min Chung, Ok Youn Kim, Hee Jung Jeon
  • Patent number: 8513479
    Abstract: The present invention relates to a zinc ferrite catalyst, a method of producing the same, and a method of preparing 1,3-butadiene using the same. Specifically, the present invention relates to a zinc ferrite catalyst which is produced in a pH-adjusted solution using a coprecipitation method, a method of producing the same, and a method of preparing 1,3-butadiene using the same, in which the 1,3-butadiene can be prepared directly using a C4 mixture including n-butene and n-butane through an oxidative dehydrogenation reaction. The present invention is advantageous in that 1,3-butadiene can be obtained at a high yield directly using a C4 fraction without performing an additional process for separating n-butene, as a reactant, from a C4 fraction containing impurities.
    Type: Grant
    Filed: May 8, 2008
    Date of Patent: August 20, 2013
    Assignees: SK Global Chemical Co., Ltd, SK Innovation Co., Ltd.
    Inventors: Young Min Chung, Seong Jun Lee, Tae Jin Kim, Seung Hoon Oh, Yong Seung Kim, In Kyu Song, Hee Soo Kim, Ji Chul Jung, Ho Won Lee
  • Publication number: 20130210106
    Abstract: The present invention relates to a method for producing hydrocarbons from biomass or organic waste. The present invention provides: a method for effectively producing diverse hydrocarbons by using a raw material comprising mixed organic acids that can be obtained by anaerobic fermentation which is a fermentation process in biogasification technology; and a method for producing diverse products such as fuel, lube base oil and aromatics by using a raw material comprising mixed organic acids.
    Type: Application
    Filed: October 18, 2011
    Publication date: August 15, 2013
    Applicant: SK INNOVATION CO., LTD.
    Inventors: Young Min Chung, Cher Hee Park, Young Seek Yoon, Hee Jung Jeon, Hee Soo Kim, Seung Hoon Oh, Seong Ho Lee, Ok Youn Kim
  • Publication number: 20130158325
    Abstract: This invention relates to a method of preparing a mixed manganese ferrite coated catalyst, and a method of preparing 1,3-butadiene using the same, and more particularly, to a method of preparing a catalyst by coating a support with mixed manganese ferrite obtained by co-precipitation at 10˜40° C. using a binder and to a method of preparing 1,3-butadiene using oxidative dehydrogenation of a crude C4 mixture containing n-butene and n-butane in the presence of the prepared catalyst. This mixed manganese ferrite coated catalyst has a simple synthetic process, and facilitates control of the generation of heat upon oxidative dehydrogenation and is very highly active in the dehydrogenation of n-butene.
    Type: Application
    Filed: May 26, 2011
    Publication date: June 20, 2013
    Applicant: SK INNOVATION CO., LTD.
    Inventors: Yong Tak Kwon, Tae Jin Kim, Young Min Chung, Ok Youn Kim, Seung Hoon Oh
  • Publication number: 20130143733
    Abstract: Disclosed herein is a catalyst for aqueous-phase reforming of biomass-derived polyols, which comprises platinum and copper as active metals and a mixture of magnesia and alumina as a support. The catalyst contains a small amount of platinum and, at the same time, has high hydrogen selectivity and low methane selectivity.
    Type: Application
    Filed: June 29, 2010
    Publication date: June 6, 2013
    Applicant: SK INNOVATION CO., LTD.
    Inventors: Young Min Chung, Tae Jin Kim, Seung Hoon Oh, Dilek Ayse Boga, Pieter C.A. Bruijinincx, Bert M. Weckhuysen
  • Patent number: 8410328
    Abstract: A method of preparing multicomponent bismuth molybdate catalysts composed of four metal components and a method of preparing 1,3-butadiene using the catalyst, and particularly, to multicomponent bismuth molybdate catalysts composed of a divalent cationic metal, a trivalent cationic metal, bismuth and molybdenum, a preparation method thereof, and a method of preparing 1,3-butadiene from a C4 mixture including n-butene and n-butane using oxidative dehydrogenation are described.
    Type: Grant
    Filed: August 24, 2008
    Date of Patent: April 2, 2013
    Assignees: SK Innovation Co., Ltd., SK Global Chemical Co., Ltd.
    Inventors: Young Min Chung, Tae Jin Kim, Seong Jun Lee, Yong Seung Kim, Seung Hoon Oh, In Kyu Song, Hee Soo Kim, Ji Chul Jung, Ho Won Lee
  • Patent number: 8367885
    Abstract: This invention relates to a method of preparing a multicomponent bismuth molybdate catalyst by changing the pH of a coprecipitation solution upon coprecipitation and a method of preparing 1,3-butadiene using the catalyst. The multicomponent bismuth molybdate catalyst, coprecipitated using a solution having an adjusted pH, the preparation method thereof, and the method of preparing 1,3-butadiene through oxidative dehydrogenation using a C4 mixture including n-butene and n-butane as a reactant are provided. The C4 raffinate, containing many impurities, is directly used as a reactant without an additional process for separating n-butane or extracting n-butene, thus obtaining 1,3-butadiene at high yield. The activity of the multicomponent bismuth molybdate catalyst can be simply increased through precise pH adjustment upon coprecipitation, which is not disclosed in the conventional techniques.
    Type: Grant
    Filed: May 8, 2008
    Date of Patent: February 5, 2013
    Assignees: SK Innovation Co., Ltd, SK Global Chemical Co., Ltd.
    Inventors: Young Min Chung, Seong Jun Lee, Tae Jin Kim, Seung Hoon Oh, Yong Seung Kim, In Kyu Song, Hee Soo Kim, Ji Chul Jung, Ho Won Lee
  • Publication number: 20130030224
    Abstract: Disclosed is a nano-sized Cu based catalyst and a method of preparing the same including dissolving, in an aqueous solution, a first component comprising a Cu precursor, a second component precursor comprising one or more selected from the group consisting of a transition metal, an alkaline earth metal and a Group IIIb metal, and a third component precursor comprising one or more selected from the group consisting of alumina, silica, silica-alumina, magnesia, titania, zirconia and carbon and then performing stirring; precipitating the stirred mixture solution using Na2CO3 and NaOH to form a catalyst precursor precipitate; and washing and filtering the formed catalyst precursor precipitate. Also a method of preparing alcohol is provided, including reacting hydrogen with carboxylic acid including a single acid or an acid mixture of two or more acids derived from a microorganism fermented solution, using the nano-sized Cu based catalyst.
    Type: Application
    Filed: April 21, 2011
    Publication date: January 31, 2013
    Applicant: SK INNOVATION CO., LTD.
    Inventors: Hee Soo Kim, Seong Ho Lee, Young Seek Yoon, Seung Hoon Oh, Young Min Chung, Ok Youn Kim, Hee Jung Jeon
  • Publication number: 20130022535
    Abstract: The present invention relates to a catalyst having surface-modified metal nanoparticles immobilized in a stationary phase in which a polymer electrolyte membrane is formed, and a preparation method thereof. The catalyst of the present invention may be used in a process for producing hydrogen peroxide by direct synthesis from oxygen and hydrogen.
    Type: Application
    Filed: March 25, 2011
    Publication date: January 24, 2013
    Applicant: SK INNOVATION CO., LTD.
    Inventors: Young Min Chung, Yong Tak Kwon, Tae Jin Kim, Seung Hoon Oh, Chang Soo Lee, Bo Yeol Kim
  • Publication number: 20130017590
    Abstract: The present invention relates to a method of economically preparing paraffin compounds corresponding to gasoline fuel or lubricating base oil using volatile fatty acids (VFAs) derived from biomass.
    Type: Application
    Filed: March 14, 2011
    Publication date: January 17, 2013
    Applicant: SK INNOVATION CO., LTD.
    Inventors: Young Min Chung, Ok Youn Kim, Hee Jung Jeon, Young Seek Yoon, Seong Ho Lee, Hee Soo Kim, Seung Hoon Oh, Yoon Jae Yim
  • Publication number: 20130004411
    Abstract: Disclosed herein is a catalyst, including, in one example: a carrier, a polymer electrolyte multilayer film formed on the carrier, and metal particles dispersed in the polymer electrolyte multilayer film. The catalyst can be easily prepared, and can be used to produce hydrogen peroxide in high yield in the presence of a reaction solvent including no acid promoter.
    Type: Application
    Filed: July 17, 2012
    Publication date: January 3, 2013
    Applicant: SK INNOVATION CO., LTD.
    Inventors: Young Min Chung, Yong Tak Kwon, Tae Jin Kim, Seung Hoon Oh, Chang Soo Lee, Bo Yeol Kim