Patents by Inventor Young Soo Kwon
Young Soo Kwon 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).
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Publication number: 20070059703Abstract: The disclosure provides methods of examining the binding of proteins to DNA across a genome (e.g., the entire genome or a portion thereof, such as one or more chromosomes or a chromosome regions). In particular, the disclosure relates to a method of identifying a regulatory region (e.g., a protein or enhancer region) of genomic DNA to which a protein of interest binds. In one aspect, the disclosure looks at tissue related regulation. In another aspect, the disclosure looks at developmental related regulation. In yet another aspect, the disclosure looks at regulation of expression in a particular disease state or disorder.Type: ApplicationFiled: July 2, 2004Publication date: March 15, 2007Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Xiang-Dong Fu, Young-Soo Kwon
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Patent number: 7189948Abstract: A lower limit of a heating factor for heating control of an oxygen sensor is adjusted on the basis of the heating factor, a P-jump delay time calculated based on an output voltage of the oxygen sensor, and a diagnosis index of the oxygen sensor, and thereby an engine may be stably controlled even if the oxygen sensor is aged.Type: GrantFiled: December 29, 2003Date of Patent: March 13, 2007Assignee: Hyundai Motor CompanyInventors: Young Soo Kwon, Jong Seok Yoon, Ki Ha Shin
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Patent number: 7083773Abstract: Nitrogen trifluoride is produced with a high yield by the method comprising forming a fast stream of micro droplets of a fused ammonium fluoride salt by rapidly ejecting the fused ammonium fluoride salt into a reactor through a nozzle while circulating the fused ammonium fluoride salt in the reactor from a lower portion to an upper portion; and contacting micro droplets of the fused ammonium fluoride salt with fluorine gas sucked in the reactor through a suction pipe for fluorine by a negative pressure formed around the nozzle due to an ejection of the fused ammonium fluoride salt, whereby excessive generation and regional accumulation of the heat of reaction are prevented, reducing the reaction temperature by 10˜30° C. compared with those of the existing methods, and a side reaction occurs only to a slight extent according to the lowered reaction temperature.Type: GrantFiled: July 16, 2003Date of Patent: August 1, 2006Assignee: Korea Institute of Science and TechnologyInventors: Young-soo Kwon, Hong-gon Kim, Sang-deuk Lee, Jae-woo Lee, Jong-yev Hong, Hyung-sik Lim, Byoung-sung Ahn
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Patent number: 6971144Abstract: A manufacturing method of a polyurethane foam injected with strand mats and a device for increasing the volume of the strand mats. The method comprises the steps of: increasing the volume of each of the strand mats to weaken the cohesion between glass fibers in each of the strand mats; continuously supplying and transferring the volume-increased strand mats; spraying a polyurethane foam solution on the continuously transferred strand mats; and foam molding the polyurethane foam solution in which the strand mats are immersed, into a polyurethane foam. Because the cohesion between the glass fibers in the strand mat is weakened and the volume of the strand mat is increased, the polyurethane foam solution uniformly permeates into the strand mats. As a result, the productivity of the polyurethane foam is improved and the variations in a variety of the mechanical properties are minimized.Type: GrantFiled: July 2, 2002Date of Patent: December 6, 2005Assignee: Han Kuk Fiber Glass Co., Ltd.Inventors: Jong Sik Kim, Young Soo Kwon, Jung Meung Roh
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Patent number: 6929459Abstract: A method and an apparatus for manufacturing a polyurethane foam injected with strand mats. After a polyurethane foam solution is sprayed on the strand mats, the strand mats are moved upward and downward by prominences and depressions and then intermittently pressed by a pressing device, thereby the air in the strand mats being exhausted to the outside. Therefore, the polyurethane foam solution uniformly permeates into the strand mats. As a result, the insulating effect and mechanical strength of the polyurethane foam are increased, uniform surface with no air spaces is obtained, the mechanical properties are made uniform, and shrinkage, cracking, distortion and the like are prevented under a super-low temperature such as less than ?165° C.Type: GrantFiled: July 2, 2002Date of Patent: August 16, 2005Assignee: Han Kuk Fiber Glass Co., Ltd.Inventors: Jong Sik Kim, Young Soo Kwon, Jung Meung Roh
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Patent number: 6710215Abstract: A method of simultaneous and selective prepararation of hexafluoropropylene and octafluorocyclebutane comprising the steps of: (a) thermally decomposing difluorochloromethane to obtain tetrafluoroethylene and then supplying the resulting tetrafluoroethylene into a fluidized bed reactor equipped with a distributor for supplying steam; and (b) supplying steam into a flow of tetrafluoroethylene supplied into the fluidized bed reactor, through a distributor for supplying steam at a certain molar ratio of tetrafluoroethylene/stream, and then performing dimerization of tetrafluoroethylene in the fluidized bed reactor under an atmospheric pressure.Type: GrantFiled: August 14, 2002Date of Patent: March 23, 2004Assignee: Korea Institute of Science and TechnologyInventors: Dong Ju Moon, Moon Jo Chung, Young Soo Kwon, Byoung Sung Ahn
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Publication number: 20040034259Abstract: A method of simultaneous and selective perpararation of hexafluoropropylene and octafluorocyclebutane comprising the steps of:Type: ApplicationFiled: August 14, 2002Publication date: February 19, 2004Inventors: Dong Ju Moon, Moon Jo Chung, Young Soo Kwon, Byoung Sung Ahn
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Publication number: 20040013595Abstract: Nitrogen trifluoride is produced with a high yield by the method comprising forming a fast stream of micro droplets of a fused ammonium fluoride salt by rapidly ejecting the fused ammonium fluoride salt into a reactor through a nozzle while circulating the fused ammonium fluoride salt in the reactor from a lower portion to an upper portion; and contacting micro droplets of the fused ammonium fluoride salt with fluorine gas sucked in the reactor through a suction pipe for fluorine by a negative pressure formed around the nozzle due to an ejection of the fused ammonium fluoride salt, whereby excessive generation and regional accumulation of the heat of reaction are prevented, reducing the reaction temperature by 10˜30° C. compared with those of the existing methods, and a side reaction occurs only to a slight extent according to the lowered reaction temperature.Type: ApplicationFiled: July 16, 2003Publication date: January 22, 2004Applicant: Korea Institute of Science and TechnologyInventors: Young-Soo Kwon, Hong-Gon Kim, Sang-Deuk Lee, Jae-Woo Lee, Jong-Yev Hong, Hyung-Sik Lim, Byoung-Sung Ahn
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Patent number: 6639230Abstract: A high-energy ion implanter for fabricating a semiconductor device includes a low-energy accelerator for converting a polarity of ions flowed in from an ion source; a stripper for converting the ions accelerated from the low-energy accelerator to positive ions in vacuum conditions; a high-energy accelerator for accelerating, in high-energy, the positive ions that are converted in the stripper; a turbo pump for providing vacuum conditions in the stripper; a current sensor for detecting currents to check for abnormal operating conditions of the turbo pump; and a central processing unit (CPU) that interrupts a circuit breaker to suspend the ion implanting process in response to the level of current detected in the current sensor. The high-energy ion implanter of the present invention is capable of preventing an unsuccessful ion implanting process by suspending operation thereof when abnormal operating conditions are detected.Type: GrantFiled: April 25, 2002Date of Patent: October 28, 2003Assignee: Samsung Electronics Co., Ltd.Inventor: Young-Soo Kwon
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Publication number: 20030034579Abstract: A method and an apparatus for manufacturing a polyurethane foam injected with strand mats. After a polyurethane foam solution is sprayed on the strand mats, the strand mats are moved upward and downward by prominences and depressions and then intermittently pressed by a pressing device, thereby the air in the strand mats being exhausted to the outside. Therefore, the polyurethane foam solution uniformly permeates into the strand mats. As a result, the insulating effect and mechanical strength of the polyurethane foam are increased, uniform surface with no air spaces is obtained, the mechanical properties are made uniform, and shrinkage, cracking, distortion and the like are prevented under a super-low temperature such as less than −165° C.Type: ApplicationFiled: July 2, 2002Publication date: February 20, 2003Applicant: HAN KUK FIBER GLASS CO., LTD.Inventors: Jong Sik Kim, Young Soo Kwon, Jung Meung Roh
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Publication number: 20030034578Abstract: A manufacturing method of a polyurethane foam injected with strand mats and a device for increasing the volume of the strand mats. The method comprises the steps of: increasing the volume of each of the strand mats to weaken the cohesion between glass fibers in each of the strand mats; continuously supplying and transferring the volume-increased strand mats; spraying a polyurethane foam solution on the continuously transferred strand mats; and foam molding the polyurethane foam solution in which the strand mats are immersed, into a polyurethane foam. Because the cohesion between the glass fibers in the strand mat is weakened and the volume of the strand mat is increased, the polyurethane foam solution uniformly permeates into the strand mats. As a result, the productivity of the polyurethane foam is improved and the variations in a variety of the mechanical properties are minimized.Type: ApplicationFiled: July 2, 2002Publication date: February 20, 2003Applicant: HAN KUK FIBER GLASS CO., Ltd.Inventors: Jong Sik Kim, Young Soo Kwon, Jung Meung Roh
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Publication number: 20020171049Abstract: A high-energy ion implanter for fabricating a semiconductor device includes a low-energy accelerator for converting a polarity of ions flowed in from an ion source; a stripper for converting the ions accelerated from the low-energy accelerator to positive ions in vacuum conditions; a high-energy accelerator for accelerating, in high-energy, the positive ions that are converted in the stripper; a turbo pump for providing vacuum conditions in the stripper; a current sensor for detecting currents to check for abnormal operating conditions of the turbo pump; and a central processing unit (CPU) that interrupts a circuit breaker to suspend the ion implanting process in response to the level of current detected in the current sensor. The high-energy ion implanter of the present invention is capable of preventing an unsuccessful ion implanting process by suspending operation thereof when abnormal operating conditions are detected.Type: ApplicationFiled: April 25, 2002Publication date: November 21, 2002Inventor: Young-Soo Kwon
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Patent number: 6403848Abstract: The present invention relates to a process for preparing hexafluoropropylene(CF3CF═CF2, HFP) from the pyrolysis of trifluoromethane(CHF3, R23) and tetrafluoroethylene(C2F4, TFE) and more particularly, to the process for preparing hexafluoropropylene from the pyrolysis of an admixture of R23 and TFE mixed in an appropriate molar ratio at below 900 which is lower than the conventional reaction temperature and longer residence time, after investigating the pyrolysis reaction of R23 and TFE by the computer simulation. The process for preparing HFP is performed by carefully controlling reaction temperature with heat balance resulted from an endothermic pyrolysis of R23 and an exothermic dimerization of TFE to prevent from carbon formation, recycling unreacted R23 and TFE in the product separated and purified from distillation column, adding fresh R23 additionally to keep an appropriate molar ratio of R23 and TFE, to improve a total yield of HFP and to minimize heat supply from outside.Type: GrantFiled: March 30, 2001Date of Patent: June 11, 2002Assignee: Korea Institute of Science and TechnologyInventors: Dong Ju Moon, Hong Gon Kim, Byoung Sung Ahn, Moon Jo Chung, Young Soo Kwon
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Patent number: 6399536Abstract: A catalyst of the formula (1) for the synthesis of alkylene carbonate by reacting alkylene oxide and carbon dioxide LmMXn (1) wherein L is selected from a group of pyridines; M is a metal atom selected from Zn, Fe, Mn, Pb and In; X is a halogen atom selected from Cl, Br and I; m is 1 or 2, and n is 2 or 3.Type: GrantFiled: February 9, 2001Date of Patent: June 4, 2002Assignee: Korea Institute of Science and TechnologyInventors: Hoon Sik Kim, Byung Gwon Lee, Sang Deuk Lee, Young Soo Kwon, Hyun Joo Lee
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Patent number: 6268131Abstract: A mass spectrometric method for sequencing nucleic acids using RNA polymerases, including DNA-dependent and RNA-dependent RNA polymerases, is provided. The methods use a modified Sanger sequencing strategy in which RNA polymerase is used to generate a set of nested RNA transcripts obtained by base-specific chain termination. These are analyzed by mass spectrometry. A method of identifying transcriptional terminator sequences or attenuator sequences is also provided.Type: GrantFiled: December 15, 1997Date of Patent: July 31, 2001Assignee: Sequenom, Inc.Inventors: Changwon Kang, Young-Soo Kwon, Young Tae Kim, Hubert Köster, Daniel P. Little, Maryanne J. Little, Guobing Xiang, David M. Lough, Charles Cantor
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Patent number: 6231781Abstract: A refrigerant composition useful as a substitute for chlorodifluoromethane (CHClF2, HCFC-22). The refrigerant composition has a first constituent of difluoromethane (CH2F2, HFC-32); a second constituent of 1,1,1-trifluoroethane (CH3CF3; namely, HFC-143a); and a third constituent selected from cyclopropane (C3H6, RC-270), 1,1,1,2,3,3,3-heptafluoropropane (CF3CHFCF3, HFC-227ea), 1,1,1,2,2-pentafluoropropane (CH3CF2CF3, HFC-245cb), 1,1,1,2,3,3-hexafluoropropane (CHF2CHFCF3, HFC-236ea), butane (C4H10, R-600), bis(difluoromethyl)ether (CHF2OCHF2, HFE-134) and pentafluoroethylmethylether (CF3CF2OCH3, HFE-245).Type: GrantFiled: October 1, 1999Date of Patent: May 15, 2001Assignee: Korea Institute of Science and TechnologyInventors: Byung Gwon Lee, Jong Sung Lim, Young Soo Kwon, Honggon Kim, Dong Joo Mun
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Patent number: 6160130Abstract: The present invention relates to a method for preparing alkylene carbonate by reacting alkylene oxide with carbon dioxide in the presence of a catalyst comprising:a) at least one alkali metal halide selected from the group consisting of MCl, MBr and MI, whrerin M is alkali metal; andb) at least one manganese halide selected from the group consisting of MnCl.sub.2, MnBr.sub.2 and MnI.sub.2.Type: GrantFiled: January 5, 2000Date of Patent: December 12, 2000Assignee: Korea Institute of Science and TechnologyInventors: Hoon Sik Kim, Jai Jun Kim, Byung Gwon Lee, Young Soo Kwon
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Patent number: 6075167Abstract: This invention relates to a method for preparing cycloaliphatic diamines by hydrogenating aromatic diamines in the presence of a supported ruthenium catalyst and a metal nitrite as a catalyst promoter to increase the rate of the hydrogenation reaction and decrease the amount of higher boiler by-products.Type: GrantFiled: September 25, 1998Date of Patent: June 13, 2000Assignee: Korea Institute of Science and TechnologyInventors: Hoon Sik Kim, Kun Yu Park, Young Soo Kwon, Moon Jo Chung, Byung Gwon Lee
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Patent number: 5959166Abstract: A method for concurrently producing different hydrofluoro carbons, comprising the reaction of halocarbon or hydrohalocarbon with hydrogen fluoride in a reaction system consisting of a series of at least two discrete reactors, in the presence of catalysts, said reactors each being provided with different reactant materials and differing in reaction conditions including the catalysts and/or reaction temperature, thereby flexibly controlling their production rates in accordance with fluctuations in their demand, and eliminating the risk of constructing large scale plants responsible for individual hydrofluorocarbons.Type: GrantFiled: November 7, 1997Date of Patent: September 28, 1999Assignee: Korea Institute of Science and TechnologyInventors: Hoon Sik Kim, Moon Jo Chung, Kun You Park, Young Soo Kwon
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Patent number: 5841007Abstract: The present invention relates to a process for manufacturing 1,1,1,2-tetrafluoroethane (HFC-134a) from trichloroethylene (TCE) and hydrogen fluoride (HF) by reacting the HCFC-133a with the HF to produce the HFC-134a and reacting the TCE with the HF to produce 1-choro-2,2,2-trifluoroethane (HCFC-133a), characterized by that a part of said HF is mixed with the mixture containing the HFC-134a and the remaining portion of said HF is fed with said TCE in portions to at least two sections of a reactor for producing said HCFC-133a. According the present process, the temperature change in the reactor for producing HCFC-133a is maintained within a narrow range over the whole reaction procedures, and the catalytic activity is well maintained. Further, the formation of by-products is considerably prevented and thus the productivity is remarkably enhanced.Type: GrantFiled: April 12, 1996Date of Patent: November 24, 1998Assignee: Korea Institute of Science and TechnologyInventors: Byoung Sung Ahn, Young Soo Kwon, Kun You Park, Moon Jo Chung