Patents by Inventor Seok-Ju Lee
Seok-Ju Lee 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: 20240000750Abstract: The present invention relates to a pharmaceutical composition comprising crystalline particles comprising the compound of Formula 1 or a pharmaceutically acceptable salt thereof comprising the compound of Formula 2 below in an amount of 0.2 wt. % or less. The crystalline particles according to the present invention, have a size, shape and distribution that improve uniformity and flowability as well as being optimized for input into the preparation process of the finished drug product, thereby increasing the content uniformity in the preparation process of the finished product and minimizing breakage during compressing into tablets, and thus can be used as a raw material pharmaceutical product suitable for the preparation process of the finished drug product.Type: ApplicationFiled: November 2, 2021Publication date: January 4, 2024Applicant: LG CHEM, LTD.Inventors: Seok Ju LEE, Ah Byeol PARK, Hui Rak JEONG, Jinok HAM, Doosup SHIN
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Patent number: 11591305Abstract: The present invention provides a method for producing fisetin or fisetin derivatives, which is capable of mass production. The method for producing fisetin or fisetin derivatives according to the present invention is capable of mass-producing fisetin or fisetin derivatives without a purification process such as a column chromatography process.Type: GrantFiled: January 7, 2022Date of Patent: February 28, 2023Assignee: DAEGU CATHOLIC UNIVERSITY INDUSTRY ACADEMIC COOPERATION FOUNDATIONInventors: Dong Wook Kang, Min Gi Chu, Seok Ju Lee, Eun Jung Lee
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Patent number: 11398326Abstract: A superconductive cable including: a former; one or more superconductive conductor layers provided outside the former; an insulating layer configured to surround the superconductive conductor layers; and one or more superconductive shield layers provided on an exterior of the insulating layer. The superconductive conductor layers and the superconductive shield layers are formed of superconductive wire rods, and each superconductive wire rod includes a metal substrate layer and a plurality of superconducting layers deposited on the metal substrate layer using a superconductive material. In the superconductive wire rods of an outermost superconductive conductor layer among the superconductive conductor layers and an innermost superconductive shield layer among the superconductive shield layers, each of the metal substrate layers and the superconducting layers are disposed in opposite directions.Type: GrantFiled: March 5, 2020Date of Patent: July 26, 2022Assignee: LS CABLE & SYSTEM LTD.Inventors: Jin Bae Na, Han Joong Kim, Young Woong Kim, Chang Yeol Choi, Heo Gyung Sung, Seok Ju Lee
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Publication number: 20220220088Abstract: The present invention provides a method for producing fisetin or fisetin derivatives, which is capable of mass production. The method for producing fisetin or fisetin derivatives according to the present invention is capable of mass-producing fisetin or fisetin derivatives without a purification process such as a column chromatography process.Type: ApplicationFiled: January 7, 2022Publication date: July 14, 2022Inventors: Dong Wook KANG, Min Gi CHU, Seok Ju LEE, Eun Jung LEE
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Publication number: 20210347639Abstract: A method for producing a bis(fluorosulfonyl)imide lithium salt is disclosed. The method includes the steps of: (a) reacting bis(chlorosulfonyl)imide with NH4F(HF)n (n=0-10) to prepare ammonium bis(fluorosulfonyl)imide; and (b) reacting the ammonium bis(fluorosulfonyl)imide with a lithium base, wherein in at least one of steps (a) and (b), after the reaction, a process of adding an alkoxy trialkyl silane to the reaction solution to remove a fluorine anion is performed.Type: ApplicationFiled: September 4, 2019Publication date: November 11, 2021Applicant: DAEGU CATHOLIC UNIVERSITY INDUSTRY ACADEMIC COOPERATION FOUNDATIONInventors: Sang Ryul LEE, Kyoung Chol KIM, Ja Young PARK, Ji Hyeong KIM, Jeong In KIM, Seok Ju LEE, Jongyun JANG, Seongjeong LEE, Mingi CHU, Dong Wook KANG
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Publication number: 20200203043Abstract: A superconductive cable including: a former; one or more superconductive conductor layers provided outside the former; an insulating layer configured to surround the superconductive conductor layers; and one or more superconductive shield layers provided on an exterior of the insulating layer. The superconductive conductor layers and the superconductive shield layers are formed of superconductive wire rods, and each superconductive wire rod includes a metal substrate layer and a plurality of superconducting layers deposited on the metal substrate layer using a superconductive material. In the superconductive wire rods of an outermost superconductive conductor layer among the superconductive conductor layers and an innermost superconductive shield layer among the superconductive shield layers, each of the metal substrate layers and the superconducting layers are disposed in opposite directions.Type: ApplicationFiled: March 5, 2020Publication date: June 25, 2020Inventors: Jin Bae NA, Han Joong KIM, Young Woong KIM, Chang Yeol CHOI, Heo Gyung SUNG, Seok Ju LEE
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Patent number: 10692631Abstract: The present invention relates to a cryogenic cooling apparatus capable of stably maintaining a cryogenic condition by repairing or exchanging a sensor such as a temperature sensor of the cryogenic cooling apparatus without releasing vacuum states of the cryogenic cooling apparatus and a system connected thereto, when the sensor needs to be repaired or exchanged.Type: GrantFiled: November 11, 2014Date of Patent: June 23, 2020Assignee: LS CABLE & SYSTEM LTD.Inventors: Seok Ju Lee, Han Joong Kim, Chang Yeol Choi, Heo Gyung Sung, Jin Bae Na
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Patent number: 10629333Abstract: A superconductive cable including: a former; one or more superconductive conductor layers provided outside the former; an insulating layer configured to surround the superconductive conductor layers; and one or more superconductive shield layers provided on an exterior of the insulating layer. The superconductive conductor layers and the superconductive shield layers are formed of superconductive wire rods, and each superconductive wire rod includes a metal substrate layer and a plurality of superconducting layers deposited on the metal substrate layer using a superconductive material. In the superconductive wire rods of an outermost superconductive conductor layer among the superconductive conductor layers and an innermost superconductive shield layer among the superconductive shield layers, each of the metal substrate layers and the superconducting layers are disposed in opposite directions.Type: GrantFiled: November 11, 2014Date of Patent: April 21, 2020Assignee: LS CABLE & SYSTEM LTD.Inventors: Jin Bae Na, Han Joong Kim, Young Woong Kim, Chang Yeol Choi, Heo Gyung Sung, Seok Ju Lee
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Patent number: 10480393Abstract: The present invention is aimed at providing an improved heater for electronic thermostats which can increase clamping force between a wax case and the heater while allowing reduction in the number of components and cost reduction, thereby improving productivity and reducing manufacturing costs in manufacture of an electronic thermostat, while improving durability and operational reliability of an electronic thermostat. The present invention provides a heater for electronic thermostats including: a hollow tube open at one end thereof and closed at the other end thereof; a heating member disposed inside the tube and generating heat by electrical resistance; and lead wires supplying electric power to the heating member, wherein the tube is directly inserted into a fastening hole of a wax case through interference fitting such that the heater is mounted on the wax case.Type: GrantFiled: March 21, 2016Date of Patent: November 19, 2019Assignee: WOO JIN IND. CO., LTD.Inventors: Seok-Ha Ryu, Young Jin Cho, Seok-Ju Lee
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Patent number: 10128026Abstract: A superconducting wire having improved electrical and physical properties.Type: GrantFiled: June 23, 2016Date of Patent: November 13, 2018Assignee: LS CABLE & SYSTEM LTD.Inventors: Jin Bae Na, Young Woong Kim, Chang Youl Choi, Cheol Hwi Ryu, Seok Ju Lee
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Publication number: 20180182513Abstract: The present invention relates to a superconducting wire having improved electrical and physical properties.Type: ApplicationFiled: June 23, 2016Publication date: June 28, 2018Inventors: Jin Bae NA, Young Woong KIM, Chang Youl CHOI, Cheol Hwi RYU, Seok Ju LEE
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Patent number: 9959955Abstract: A superconducting cable includes a core part, in which the core part includes a former including a plurality of copper wires, a superconducting conductor layer including a plurality of superconducting wires connected in parallel to each other, an insulating layer, and a superconducting shield layer including a plurality of superconducting wires are sequentially arranged. A conducting layer formed of a metal having a current-carrying property at room temperature is provided on opposite surfaces of each of the superconducting wires of the superconducting conductor layer to reinforce mechanical rigidity of each of superconducting wires of the superconducting conductor layer, and the former has a cross-sectional area which is smaller than that of a former of a superconducting cable in which the conducting layer is not added to superconducting wires and which is designed on an assumption that all fault current flows to the former.Type: GrantFiled: July 16, 2015Date of Patent: May 1, 2018Assignee: LS CABLE & SYSTEM LTD.Inventors: Jin-Bae Na, Young-Woong Kim, Chang-Youl Choi, Heo-Gyung Sung, Seok-Ju Lee
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Publication number: 20170352454Abstract: A superconductive cable including: a former; one or more superconductive conductor layers provided outside the former; an insulating layer configured to surround the superconductive conductor layers; and one or more superconductive shield layers provided on an exterior of the insulating layer. The superconductive conductor layers and the superconductive shield layers are formed of superconductive wire rods, and each superconductive wire rod includes a metal substrate layer and a plurality of superconducting layers deposited on the metal substrate layer using a superconductive material. In the superconductive wire rods of an outermost superconductive conductor layer among the superconductive conductor layers and an innermost superconductive shield layer among the superconductive shield layers, each of the metal substrate layers and the superconducting layers are disposed in opposite directions.Type: ApplicationFiled: November 11, 2014Publication date: December 7, 2017Applicant: LS Cable & System LTD.Inventors: Jin Bae NA, Han Joong KIM, Young Woong KIM, Chang Yeol CHOI, Heo Gyung SUNG, Seok Ju LEE
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Publication number: 20170330653Abstract: The present invention relates to a cryogenic cooling apparatus capable of stably maintaining a cryogenic condition by repairing or exchanging a sensor such as a temperature sensor of the cryogenic cooling apparatus without releasing vacuum states of the cryogenic cooling apparatus and a system connected thereto, when the sensor needs to be repaired or exchanged.Type: ApplicationFiled: November 11, 2014Publication date: November 16, 2017Applicant: LS Cable & System LTD.Inventors: Seok Ju LEE, Han Joong KIM, Chang Yeol CHOI, Heo Gyung SUNG, Jin Bae NA
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Publication number: 20170309374Abstract: A superconducting cable includes a core part, in which the core part includes a former including a plurality of copper wires, a superconducting conductor layer including a plurality of superconducting wires connected in parallel to each other, an insulating layer, and a superconducting shield layer including a plurality of superconducting wires are sequentially arranged. A conducting layer formed of a metal having a current-carrying property at room temperature is provided on opposite surfaces of each of the superconducting wires of the superconducting conductor layer to reinforce mechanical rigidity of each of superconducting wires of the superconducting conductor layer, and the former has a cross-sectional area which is smaller than that of a former of a superconducting cable in which the conducting layer is not added to superconducting wires and which is designed on an assumption that all fault current flows to the former.Type: ApplicationFiled: July 16, 2015Publication date: October 26, 2017Applicant: LS Cable & System LTD.Inventors: Jin-Bae NA, Young-Woong KIM, Chang-Youl CHOI, Heo-Gyung SUNG, Seok-Ju LEE
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Publication number: 20170016382Abstract: The present invention is aimed at providing an improved heater for electronic thermostats which can increase clamping force between a wax case and the heater while allowing reduction in the number of components and cost reduction, thereby improving productivity and reducing manufacturing costs in manufacture of an electronic thermostat, while improving durability and operational reliability of an electronic thermostat. The present invention provides a heater for electronic thermostats including: a hollow tube open at one end thereof and closed at the other end thereof; a heating member disposed inside the tube and generating heat by electrical resistance; and lead wires supplying electric power to the heating member, wherein the tube is directly inserted into a fastening hole of a wax case through interference fitting such that the heater is mounted on the wax case.Type: ApplicationFiled: March 21, 2016Publication date: January 19, 2017Applicant: WOO JIN IND. CO., LTD.Inventors: Seok-Ha RYU, Young Jin CHO, Seok-Ju LEE
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Publication number: 20160010821Abstract: A laser optical system for headlamps may include a laser diode generating a laser beam, a fluorescent body reacting to the laser beam and outputting white light, a main reflector reflecting the white light output from the fluorescent body forward, an aspheric lens directing the white light reflected by the main reflector forward, and a beam lens provided on a front surface of the fluorescent body. The beam lens may contract the laser beam entering the fluorescent body and reduce a radiation angle of the white light output from the fluorescent body. The laser diode may be configured such that a center axis of the laser diode is aligned with a reference line, the reference line being substantially perpendicular to an incident surface of the fluorescent body and passing through a center or a center portion of the fluorescent body.Type: ApplicationFiled: October 29, 2014Publication date: January 14, 2016Applicants: Hyundai Motor Company, SL Lighting CorporationInventors: Byoung Suk Ahn, Dae Kon Kim, Sung Wook Youn, Seok Ju Lee
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Patent number: 8426600Abstract: Disclosed is a method for preparing a montelukast sodium salt of Formula 1. The method includes coupling a methanesulfonyl compound of Formula 2 below with a compound of Formula 3 below in the presence of a bistrimethylsilylamide alkali metal salt, further adding an alkali metal base thereto and hydrolyzing the mixture by heating to prepare a compound of Formula 4 below, reacting the compound of Formula 4 with 4-tert-butylcyclohexylamine, followed by purification, to prepare an amine salt of Formula 5, and converting the amine salt of Formula 5 into a sodium salt.Type: GrantFiled: September 25, 2009Date of Patent: April 23, 2013Assignee: LG Life Sciences, Ltd.Inventors: In Sang Lee, Seok Ju Lee, Jae Eun Kang
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Patent number: 8354592Abstract: Provided is a superconducting cable device including: a first superconducting cable and a second superconducting cable; an intermediate connection box which connects the first and second superconducting cables to each other; and a cooling device which causes a coolant to flow inside the intermediate connection box in a lengthwise direction of the intermediate connection box, wherein a cable connection portion for connecting the first and second superconducting cables to each other is provided in the intermediate connection box. In an uncooled state, the cable connection portion is disposed to be eccentric from a center line in the lengthwise direction of the intermediate connection box in a direction in which the coolant flows.Type: GrantFiled: August 26, 2011Date of Patent: January 15, 2013Assignee: LS Cable Ltd.Inventors: Seok Hern Jang, Su Kil Lee, Hyun Man Jang, Chang Youl Choi, Keun Tae Lee, Yang Hoon Kim, Seok Ju Lee
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Patent number: 8306591Abstract: A superconducting cable terminal connection device connecting a terminal of a superconducting cable for power transmission to an external power system, includes: an electric field relaxation shield disposed inside an insulation housing; a horizontal conductor fixed to an end portion of a core of the superconducting cable drawn into the electric field relaxation shield; an insulator which coats an outer periphery of the horizontal conductor; a vertical conductor which is drawn into the electric field relaxation shield and has a through-hole through which the horizontal conductor and the insulator pass so as to be slidable in a lengthwise direction; and a flexible electrical conduction member which electrically connects an end portion of the horizontal conductor to the vertical conductor.Type: GrantFiled: September 19, 2011Date of Patent: November 6, 2012Assignee: LS Cable Ltd.Inventors: Seok Ju Lee, Su Kil Lee, Hyun Man Jang, Chang Youl Choi