Patents by Inventor Hyung-seok Choi
Hyung-seok Choi 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: 20240114709Abstract: The quantum dot comprises a ligand which is a copolymer comprising a first repeating unit comprising at least one or more hole transporting functional groups and a second repeating unit comprising at least one or more photocrosslinking functional groups.Type: ApplicationFiled: September 22, 2020Publication date: April 4, 2024Applicants: LG DISPLAY CO., LTD., KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATIONInventors: Joona BANG, Ki Seok CHANG, Jeong Min MOON, Soon Shin JUNG, Dong Hoon CHOI, Hyung Jong KIM, Jae Wan KO
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Patent number: 8977530Abstract: Provided is a method for improving useful substance-producing organisms using metabolic flux analysis, and more particularly a method for improving a host organism producing a useful substance, the method including: calculating a maximum flux value corresponding to the theoretical maximum yield of the useful substance in the metabolic network model of the host organism for producing useful substance, and calculating the optimum value of metabolic flux associated with useful substance production in the metabolic network when the value of cell growth-associated metabolic flux is the maximum under the condition where fermentation data are applied or not applied; selecting metabolic fluxes whose absolute values increase from the range between the maximum value and the optimum value; screening genes associated with the selected metabolic fluxes; and introducing and/or amplifying the selected genes in the host organism. Production of the useful substance can be effectively improved by using the method.Type: GrantFiled: September 15, 2005Date of Patent: March 10, 2015Assignee: Korea Advanced Institute of Science and TechnologyInventors: Sang Yup Lee, Han Min Woo, Hyung Seok Choi
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Publication number: 20130296193Abstract: The invention relates to a method for discovering biomarkers, comprising: matching the expression levels of genetic factors in persons, including a plurality of patients having a specific disease, for each of the persons; and comparing the expression levels of the genetic factors and genes corresponding thereto by any one or more of cluster analysis and correlation analysis to select some of the genetic factors. According to the invention, highly accurate biomarkers for a specific disease can be discovered in a simple and easy manner.Type: ApplicationFiled: October 17, 2012Publication date: November 7, 2013Applicant: LG ELECTRONICS INC.Inventors: Hyung-Seok CHOI, Hae Seok EO, Jee Yeon HEO
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Patent number: 8469650Abstract: A wafer transfer system, and method of controlling pressure in the system, includes a loadport for receiving a wafer container, a housing operably connected to the loadport, a wafer transfer mechanism for transferring a wafer between the wafer container and the housing, a wafer container sensor for detecting a presence of the wafer container on the loadport, a variable speed fan disposed in a first portion of the housing, a variable exhaust unit disposed in a second portion of the housing facing the first portion, the variable exhaust unit being capable of varying an exhaust rate of air from the housing, and a controller for variably operating the variable speed fan and the variable exhaust unit in response to a signal from the wafer container sensor.Type: GrantFiled: October 17, 2008Date of Patent: June 25, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Soo-woong Lee, Hyung-seok Choi, Jung-sung Hwang, Sung-hwan Choi
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Patent number: 8146447Abstract: A contamination analysis unit and method for inspecting pollutants remaining on a target side of an inspection object such as a reticle after cleaning the object is provided. After steeping the target side in a solution, a sampling liquid may be abstracted therefrom after a predetermined time and may be analyzed.Type: GrantFiled: February 14, 2008Date of Patent: April 3, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Ok-Sun Lee, Hyung-Seok Choi, Yo-Han Ahn, Ji-Young Kim
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Patent number: 7914594Abstract: An air filtering device and an air cleaning system of a semiconductor manufacturing apparatus to reduce cost and increase manufacturing productivity. The air filtering device may include a frame having an open aperture coupled to an air supply line. A buffer frame configured to be inserted into the frame may include a plurality of slot parts, each slot part having a plurality of air in/out apertures through which air may flow in or out from the buffer frame. A plurality of filters may be releasably fastened to the plurality of slot parts to filter pollution material contained in air flowing through the air in/out apertures. An air interrupter for interrupting air flowing through the air in/out apertures may be used when replacing the plurality of filters, thereby providing purified air to the semiconductor manufacturing apparatus during the replacement.Type: GrantFiled: July 25, 2008Date of Patent: March 29, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Chang-Min Cho, Joo-Young Kim, Ji-Young Kim, Ju-A Ryu, Yo-Han Ahn, Hyung-Seok Choi, Dong-Seok Ham
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METHOD FOR ANALYZING METABOLITES FLUX USING CONVERGING RATIO DETERMINANT AND SPLIT RATIO DETERMINANT
Publication number: 20090298070Abstract: The present invention relates to a method for analyzing metabolic flux using CRD and SRD. Specifically, the method comprising: selecting a specific target organism, constructing the metabolic network model of the selected organism, identifying the correlations between specific metabolic fluxes in the metabolic network model, defining the correlation ratios as CRD and SRD, determining the correlation ratios of the metabolic fluxes through the experiment for measuring metabolic flux ratios, modifying a stoichiometric matrix with the determined CRD, SRD and correlation ratios, and applying the modified stoichiometric matrix of the metabolic network model for linear programming. According to the inventice method, the correlation between influent/effluent metabolic fluxes with respect to specific metabolites in target organisms (including E.Type: ApplicationFiled: September 8, 2006Publication date: December 3, 2009Applicant: Korea Advanced Institute of Science and TechnologyInventors: Sang-Yup Lee, Hyung Seok Choi, Tae Yong Kim -
Publication number: 20090053034Abstract: A wafer transfer system, and method of controlling pressure in the system, includes a loadport for receiving a wafer container, a housing operably connected to the loadport, a wafer transfer mechanism for transferring a wafer between the wafer container and the housing, a wafer container sensor for detecting a presence of the wafer container on the loadport, a variable speed fan disposed in a first portion of the housing, a variable exhaust unit disposed in a second portion of the housing facing the first portion, the variable exhaust unit being capable of varying an exhaust rate of air from the housing, and a controller for variably operating the variable speed fan and the variable exhaust unit in response to a signal from the wafer container sensor.Type: ApplicationFiled: October 17, 2008Publication date: February 26, 2009Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Soo-woong Lee, Hyung-seok Choi, Jung-sung Hwang, Sung-hwan Choi
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Publication number: 20090025565Abstract: An air filtering device and an air cleaning system of a semiconductor manufacturing apparatus to reduce cost and increase manufacturing productivity. The air filtering device may include a frame having an open aperture coupled to an air supply line. A buffer frame configured to be inserted into the frame may include a plurality of slot parts, each slot part having a plurality of air in/out apertures through which air may flow in or out from the buffer frame. A plurality of filters may be releasably fastened to the plurality of slot parts to filter pollution material contained in air flowing through the air in/out apertures. An air interrupter for interrupting air flowing through the air in/out apertures may be used when replacing the plurality of filters, thereby providing purified air to the semiconductor manufacturing apparatus during the replacement.Type: ApplicationFiled: July 25, 2008Publication date: January 29, 2009Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Chang-Min CHO, Joo-Young KIM, Ji-Young KIM, Ju-A RYU, Yo-Han AHN, Hyung-Seok CHOI, Dong-Seok HAM
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Patent number: 7438514Abstract: A wafer transfer system, and method of controlling pressure in the system, includes a loadport for receiving a wafer container, a housing operably connected to the loadport, a wafer transfer mechanism for transferring a wafer between the wafer container and the housing, a wafer container sensor for detecting a presence of the wafer container on the loadport, a variable speed fan disposed in a first portion of the housing, a variable exhaust unit disposed in a second portion of the housing facing the first portion, the variable exhaust unit being capable of varying an exhaust rate of air from the housing, and a controller for variably operating the variable speed fan and the variable exhaust unit in response to a signal from the wafer container sensor.Type: GrantFiled: October 14, 2004Date of Patent: October 21, 2008Assignee: Samsung Electronics Co., Ltd.Inventors: Soo-woong Lee, Hyung-seok Choi, Jung-sung Hwang, Sung-hwan Choi
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Publication number: 20080220490Abstract: The present invention relates to a method for improving useful substance-producing organisms using metabolic flux analysis, and more particularly to a method for improving a host organism producing a useful substance, the method comprising: calculating a maximum flux value corresponding to the theoretical maximum yield of the useful substance in the metabolic network model of the host organism for producing useful substance, and calculating the optimum value of metabolic flux associated with useful substance production in the metabolic network when the value of cell growth-associated metabolic flux is the maximum under the condition where fermentation data are applied or not applied; selecting metabolic fluxes whose absolute values increase from the range between the maximum value and the optimum value; screening genes associated with the selected metabolic fluxes; and introducing and/or amplifying the selected genes in the host organism.Type: ApplicationFiled: September 15, 2005Publication date: September 11, 2008Inventors: Sang Yup Lee, Han Min Woo, Hyung Seok Choi
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Publication number: 20080196515Abstract: A contamination analysis unit and method for inspecting pollutants remaining on a target side of an inspection object such as a reticle after cleaning the object is provided. After steeping the target side in a solution, a sampling liquid may be abstracted therefrom after a predetermined time and may be analyzed.Type: ApplicationFiled: February 14, 2008Publication date: August 21, 2008Inventors: Ok-Sun Lee, Hyung-Seok Choi, Yo-Han Ahn, Ji-Young Kim
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Publication number: 20080137046Abstract: A substrate exposing apparatus includes an immersion exposure unit, disposed between a projection optical system and a substrate, including a vessel disposed on an optical path and filled with a liquid, a supply line connected to one side of the vessel to supply the liquid to the vessel, a first drain line connected to the other side of the vessel to drain the liquid from the vessel, and a monitoring unit including at least one first measuring unit connected to the first drain line to detect a property of the liquid flowing through the first drain line. The monitoring unit can include a collection line connected to the first drain line to collect the liquid, a first bath storing the collected liquid, and a first distribution line through which the liquid in the first bath can flow. The first measuring unit is installed on the first distribution line.Type: ApplicationFiled: December 6, 2007Publication date: June 12, 2008Applicant: Samsung Electronics Co., Ltd.Inventors: Ju-A Ryu, Chang-Su Lim, Yo-Han Ahn, Hyung-Seok Choi, Kyung-Log Moon
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Publication number: 20070144559Abstract: A unit for preventing a substrate from drying includes a transfer arm for transferring a substrate from a first bath containing a first cleaning solution to a second bath containing a second cleaning solution, a spraying part connected to the transfer arm, wherein the spraying part sprays a drying prevention solution from an upper portion of the substrate to a lower portion of the substrate, and a drainage container connected to the transfer arm, wherein the drainage container receives the drying prevention solution.Type: ApplicationFiled: December 15, 2006Publication date: June 28, 2007Inventors: Kwang-Shin Lim, Sung-Jae Han, Yong-Hoon Lee, Hyung-Seok Choi, Ju-Ah Ryu, Yong-Joo Choi
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Publication number: 20070035715Abstract: Example embodiments of the present invention relate to an apparatus for manufacturing semiconductors and a method of inspecting a pellicle. Other example embodiments of the present invention relate to an exposure apparatus for manufacturing semiconductors. The apparatus may include a reticle, a pellicle and a reticle chuck. The reticle may be mounted on an upper surface of the reticle chuck and the pellicle may be attached to a lower surface of the reticle chuck so that the pellicle may be detached again. There may be an empty space formed between the pellicle and the reticle. The reticle chuck may include holes for supplying or exhausting a purging gas from the empty space. Because a simpler yet more efficient purging system may be installed to the reticle chuck, an effective measure may be provided against contaminations on the pattern surface of the reticle.Type: ApplicationFiled: August 11, 2006Publication date: February 15, 2007Inventors: Hyung-Seok Choi, Yong-Hoon Lee, Yo-Han Ahn, Ok-Sun Lee
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Publication number: 20060018736Abstract: A wafer transfer system, and method of controlling pressure in the system, includes a loadport for receiving a wafer container, a housing operably connected to the loadport, a wafer transfer mechanism for transferring a wafer between the wafer container and the housing, a wafer container sensor for detecting a presence of the wafer container on the loadport, a variable speed fan disposed in a first portion of the housing, a variable exhaust unit disposed in a second portion of the housing facing the first portion, the variable exhaust unit being capable of varying an exhaust rate of air from the housing, and a controller for variably operating the variable speed fan and the variable exhaust unit in response to a signal from the wafer container sensor.Type: ApplicationFiled: October 14, 2004Publication date: January 26, 2006Inventors: Soo-woong Lee, Hyung-seok Choi, Jung-sung Hwang, Sung-hwan Choi
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Publication number: 20060002833Abstract: An apparatus and method for exhaust control. The apparatus may include a vessel to accommodate a gas flow of a gas, a sensor mounted on the vessel to sense a direction of the gas flow in the vessel, a conduit coupled to the vessel to exhaust the gas from the vessel, and a control unit that adjusts a flow rate of the gas through the conduit based on the direction of the gas flow in vessel sensed by the sensor. The method may include providing a gas flow of a gas in a vessel, sensing a direction of the gas flow in the vessel, exhausting the gas from the vessel at an exhaust flow rate, and adjusting the exhaust flow rate based on the sensed direction of the gas flow in the vessel.Type: ApplicationFiled: June 13, 2005Publication date: January 5, 2006Inventors: Hyung-Seok Choi, Jung-Sung Hwang, Kyoung-Ho Park, Kil-Sun Ko, Yong-Woon Oh
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Electrode assembly for processing a semiconductor substrate and processing apparatus having the same
Publication number: 20030185729Abstract: An electrode assembly connected to a radio frequency electrical power source transforms process gas into plasma for processing a semiconductor substrate. The electrode assembly includes a first and a second electrode made of aluminum (Al), and a third electrode made of silicon (Si). A plurality of first bolts connect the first electrode to the second electrode, and a plurality of second bolts connect the second electrode with the third electrode. The bolts are either mad of or coated with a metal having an electric conductivity that is no less than that of the aluminum (Al). Furthermore, a conductive film and/or adhesive is interposed between the first electrode and the second electrode. The conductive film includes metal having an electric conductivity more than the aluminum (Al). The conductive film and the bolts reduce the electrical resistance throughout the assembly, and the adhesive fills minute apertures in the surfaces of the electrodes.Type: ApplicationFiled: November 18, 2002Publication date: October 2, 2003Inventors: Ho Ko, Chang-Bong Song, Joong-Mo Lee, Hyung-Seok Choi