Patents by Inventor Yoon Young Choi
Yoon Young 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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Patent number: 11970493Abstract: The present disclosure provides autotaxin (ATX) inhibitor compounds and compositions including said compounds. The present disclosure also provides methods of using said compounds and compositions for inhibiting ATX. Also provided are methods of preparing said compounds and compositions, and synthetic precursors of said compounds.Type: GrantFiled: October 4, 2021Date of Patent: April 30, 2024Assignee: ILDONG PHARMACEUTICAL CO., LTD.Inventors: Sung-Ku Choi, Yoon-Suk Lee, Sung-Wook Kwon, Kyung-Sun Kim, Jeong-Geun Kim, Jeong-Ah Kim, An-Na Moon, Sun-Young Park, Jun-Su Ban, Dong-Keun Song, Kyu-Sic Jang, Ju-Young Jung, Soo-Jin Lee
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LITHIUM COMPOSITE OXIDE AND POSITIVE ELECTRODE ACTIVE MATERIAL FOR SECONDARY BATTERY CONTAINING SAME
Publication number: 20240136510Abstract: A positive electrode active material including a first lithium composite oxide particle including a secondary particle formed by aggregation of one or more primary particles, and a coating oxide occupying at least a part of at least one of surfaces of the secondary particle, grain boundaries between the primary particles, or surfaces of the primary particles, the positive electrode active material satisfying an equation of 1.3?a/b?3.0, wherein a represents a max peak intensity at 2theta=44.75° to 44.80° and b represents a max peak intensity at 2theta=45.3° to 45.6° in X-ray diffraction (XRD) analysis using Cu K? radiation.Type: ApplicationFiled: May 21, 2023Publication date: April 25, 2024Inventors: Yu Gyeong CHUN, Moon Ho CHOI, Yoon Young CHOI, Jong Seung SHIN, Yong Hwan GWON, Jin Ho BAE, Ji Won KIM, Sang Hyeok KIM -
Publication number: 20240127710Abstract: Disclosed are a system and method for automatically evaluating an essay. The system includes a structure analysis module configured to divide learning data and learner essay text in a predetermined structure analysis unit, generate structure tagging information for each structure analysis unit, and structure the learning data and the learner essay text by attaching the structure tagging information to the learning data and the learner essay text, a learning module configured to generate an essay evaluation model through learning by using essay text that is included in the structured learning data and the structure tagging information as an input value and using an evaluation score that is included in the structured learning data as a label, and an evaluation module configured to generate essay evaluation results using the essay evaluation model.Type: ApplicationFiled: April 18, 2023Publication date: April 18, 2024Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Minsoo CHO, Oh Woog KWON, Yoon-Hyung ROH, Ki Young LEE, Yo Han LEE, Sung Kwon CHOI, Jinxia HUANG
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Publication number: 20240130111Abstract: A semiconductor device may comprise: a plurality of lower electrodes which are on a substrate; a first electrode support which is between adjacent lower electrodes and comprises a metallic material; a dielectric layer which is on the lower electrodes and the first electrode support to extend along profiles of the first electrode support and each of the lower electrodes; and an upper electrode which is on the dielectric layer.Type: ApplicationFiled: December 26, 2023Publication date: April 18, 2024Applicant: Samsung Electronics Co., Ltd.Inventors: Yoon Young CHOI, Seung Jin KIM, Byung-Hyun LEE, Sang Jae PARK
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Publication number: 20240079642Abstract: The present invention relates to a method for preparing an alkali metal ion conductive chalcogenide-based solid electrolyte, a solid electrolyte prepared thereby, and an all-solid-state battery comprising the same.Type: ApplicationFiled: January 11, 2022Publication date: March 7, 2024Applicant: KOREA ELECTROTECHNOLOGY RESEARCH INSTITUTEInventors: Yoon Cheol HA, Sang Min LEE, Byung Gon KIM, Gum Jae PARK, Jun Woo PARK, Jun Ho PARK, Ji Hyun YU, Won Jae LEE, You Jin LEE, Hae Young CHOI
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Patent number: 11912674Abstract: The present invention provides methods for treating or ameliorating metabolic diseases, cholestatic liver diseases, or organ fibrosis, which comprises administering to a subject a therapeutically effective amount of a pharmaceutical composition comprising an isoxazole derivative, a racemate, an enantiomer, or a diastereoisomer thereof, or a pharmaceutically acceptable salt of the derivative, the racemate, the enantiomer, or the diastereoisomer.Type: GrantFiled: March 4, 2021Date of Patent: February 27, 2024Assignee: IL DONG PHARMACEUTICAL CO., LTD.Inventors: Jae-Hoon Kang, Hong-Sub Lee, Yoon-Suk Lee, Jin-Ah Jeong, Sung-Wook Kwon, Jeong-Guen Kim, Kyung-Sun Kim, Dong-Keun Song, Sun-Young Park, Kyeo-Jin Kim, Ji-Hye Choi, Hey-Min Hwang
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Patent number: 11910593Abstract: A semiconductor device may comprise: a plurality of lower electrodes which are on a substrate; a first electrode support which is between adjacent lower electrodes and comprises a metallic material; a dielectric layer which is on the lower electrodes and the first electrode support to extend along profiles of the first electrode support and each of the lower electrodes; and an upper electrode which is on the dielectric layer.Type: GrantFiled: September 25, 2020Date of Patent: February 20, 2024Assignee: Samsung Electronics Co., Ltd.Inventors: Yoon Young Choi, Seung Jin Kim, Byung-Hyun Lee, Sang Jae Park
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Publication number: 20230420696Abstract: The present disclosure relates to a method for manufacturing core-shell particles using carbon monoxide, and more particularly, to a method for manufacturing core-shell particles, the method of which a simple and fast one-pot reaction enables particle manufacturing to reduce process costs, facilitate scale-up, change various types of core and shell metals, and form a multi-layered shell by including the steps of adsorbing carbon monoxide on a transition metal for a core, and reacting carbon monoxide adsorbed on the surface of the transition metal for the core, a metal precursor for a shell, and a solvent to form particles with a core-shell structure having a reduced metal shell layer formed on a transition metal core.Type: ApplicationFiled: September 12, 2023Publication date: December 28, 2023Applicant: KOREA INSTITUTE OF ENERGY RESEARCHInventors: Gu-gon PARK, Eun Jik LEE, Kyunghee KIM, Sung-dae YIM, Seok-hee PARK, Min-ji KIM, Young-jun SOHN, Byungchan BAE, Seung-gon KIM, Dongwon SHIN, Hwanyeong OH, Seung Hee WOO, So Jeong LEE, Hyejin LEE, Yoon Young CHOI, Won-yong LEE, Tae-hyun YANG
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Publication number: 20230402619Abstract: A method for preparing a platinum alloy catalyst using an oxide coating according to an embodiment of the present disclosure comprises: a first step of preparing a dispersion by mixing a commercial platinum catalyst and a transition metal precursor with a solvent; a second step of preparing a catalyst by putting an ultrasonic tip into the dispersion prepared through the first step and performing an ultrasonic process; a third step of performing a primary heat treatment process on the catalyst prepared through the second step; a fourth step of performing an acid treatment process on the catalyst that has undergone the primary heat treatment process through the third step; and a fifth step of preparing a platinum alloy catalyst by performing a secondary heat treatment process on the catalyst that has undergone the acid treatment process through the fourth step.Type: ApplicationFiled: March 23, 2023Publication date: December 14, 2023Applicant: KOREA INSTITUTE OF ENERGY RESEARCHInventors: Eun Jik LEE, Gu-gon PARK, DongJe LEE, Sung-dae YIM, Seok-hee PARK, Min-jin KIM, Young-jun SOHN, Byungchan BAE, Seung-gon KIM, Dongwon SHIN, Hwanyeong OH, Seung Hee WOO, So Jeong LEE, Hyejin LEE, Yoon Young CHOI, Yun Sik KANG, Won-yong LEE, Tae-hyun YANG
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Publication number: 20230378480Abstract: The manufacturing method of a palladium transition metal core-based core-shell electrode catalyst according to an exemplary embodiment of the present disclosure includes a first step of preparing a slurry by irradiating ultrasonic wave to a dispersion solution including a solvent, a platinum precursor, a palladium precursor, a carbon support, and a transition metal precursor, a second step of preparing a solid material by filtering, washing, and drying the slurry prepared in the first step, and a third step of preparing a core-shell electrode catalyst by thermally treating the solid prepared in the second step in a specific gas atmosphere.Type: ApplicationFiled: January 31, 2023Publication date: November 23, 2023Applicant: KOREA INSTITUTE OF ENERGY RESEARCHInventors: Gu-gon PARK, Eunjik LEE, Ik Sung LIM, Sung-Dae YIM, Seok-Hee PARK, Minjin KIM, Young-Jun SOHN, Byungchan BAE, Seung-gon KIM, Dongwon SHIN, Hwanyeong OH, Seung Hee WOO, So Jeong LEE, Hyejin LEE, Yoon Young CHOI, Yun Sik KANG, Won-yong LEE, Tae-hyun YANG
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Patent number: 11791475Abstract: The present disclosure relates to a method for manufacturing core-shell particles using carbon monoxide, and more particularly, to a method for manufacturing core-shell particles, the method of which a simple and fast one-pot reaction enables particle manufacturing to reduce process costs, facilitate scale-up, change various types of core and shell metals, and form a multi-layered shell by including the steps of adsorbing carbon monoxide on a transition metal for a core, and reacting carbon monoxide adsorbed on the surface of the transition metal for the core, a metal precursor for a shell, and a solvent to form particles with a core-shell structure having a reduced metal shell layer formed on a transition metal core.Type: GrantFiled: September 3, 2021Date of Patent: October 17, 2023Assignee: Korea Institute of Energy ResearchInventors: Gu-Gon Park, Eun Jik Lee, Kyunghee Kim, Sung-dae Yim, Seok-hee Park, Min-ji Kim, Young-jun Sohn, Byungchan Bae, Seung-gon Kim, Dongwon Shin, Hwanyeong Oh, Seung Hee Woo, So Jeong Lee, Hyejin Lee, Yoon Young Choi, Won-Yong Lee, Tae-hyun Yang
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Publication number: 20230261181Abstract: The present invention relates to a positive electrode active material and a lithium secondary battery using the same, and more particularly, to a bimodal-type positive electrode active material including a first lithium composite oxide as a small particle and a second lithium composite oxide as a large particle, which improves the transport ability of lithium ions by controlling the morphology or crystal structure of the small particle included in the positive electrode active material, and further alleviates or prevents the early deterioration or shortened lifetime of the bimodal-type positive electrode active material, caused by the small particle, by increasing the particle stability of the small particle, and a lithium secondary battery using the same.Type: ApplicationFiled: March 31, 2023Publication date: August 17, 2023Applicant: ECOPRO BM CO., LTD.Inventors: Yu Gyeong CHUN, Yong Hwan GWON, Jong Seung SHIN, Moon Ho CHOI, Yoon Young CHOI, Ji Won KIM, Sang Hyeok KIM
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Publication number: 20230187659Abstract: A modeling method for designing a flow field of a fuel cell including a membrane electrode assembly including a catalyst layer and an electrolyte membrane, a gas diffusion layer, a flow field, and a bipolar plate includes modeling using a numerical model derived from a governing equation including a mass conservation equation of species, a fluid momentum in a porous media, and a modified Butler-Volmer's equation and outputting an oxygen diffusion characteristic in a catalyst layer from the modeling result.Type: ApplicationFiled: December 13, 2022Publication date: June 15, 2023Applicant: KOREA INSTITUTE OF ENERGY RESEARCHInventors: Min Jin KIM, Young Jun SOHN, Hwan Yeong OH, Yoon Young CHOI, Seung Gon KIM, Won Yong LEE, Tae Hyun YANG, Seok Hee PARK, Sung Dae YIM, Seung Hee WOO, Yun Sik KANG, Gu Gon PARK, Eun Jik LEE, So Jeong LEE, Byung Chan BAE, Dong Won SHIN, Hye Jin LEE, Dong Hwan PARK
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Publication number: 20230129261Abstract: The present invention relates to a positive electrode active material and a lithium secondary battery including the same, and more particularly, to a bimodal-type positive electrode active material including a first lithium composite oxide as a small particle and a second lithium composite oxide as a large particle, wherein the positive electrode active material may uniformly improve the particle stability of the small particle and the large particle by controlling a slope of a concentration gradient in which cobalt in the small particle and the large particle decreases from a surface portion toward a central portion, a positive electrode including the positive electrode active material, and a lithium secondary battery using the positive electrode.Type: ApplicationFiled: October 25, 2022Publication date: April 27, 2023Applicant: ECOPRO BM CO., LTD.Inventors: Yu Gyeong CHUN, Moon Ho CHOI, Yoon Young CHOI, Jong Seung SHIN, Jin Won LEE
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Publication number: 20230132296Abstract: The present invention relates to a positive electrode active material and a lithium secondary battery including the same, and more particularly, to a positive electrode active material including a lithium composite oxide containing at least nickel and cobalt, wherein since the cobalt in the lithium composite oxide has a concentration gradient having at least different slopes from a surface portion toward a central portion, it is possible to improve the stability of particles not only in a surface portion of the lithium composite oxide but also in a central portion thereof, a positive electrode including the positive electrode active material, and a lithium secondary battery using the negative electrode.Type: ApplicationFiled: October 25, 2022Publication date: April 27, 2023Applicant: ECOPRO BM CO., LTD.Inventors: Yu Gyeong CHUN, Moon Ho CHOI, Yoon Young CHOI, Jong Seung SHIN, Jin Ho BAE, Jin Won LEE
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Patent number: 11600495Abstract: Provided is a method of manufacturing a semiconductor device. The method includes providing a substrate in which a main area including a first cell area and a first peripheral area, and an edge area including a second cell area and a second peripheral area are defined, sequentially forming a mold layer, a supporter layer, a mask layer, and a preliminary pattern layer on the substrate, exposing the preliminary pattern layer to light to simultaneously form a first pattern and a second pattern on the mask layer of the first cell area and the second cell area, respectively, forming an etch stop layer on the second pattern and etching the mask layer using the etch stop layer and the first pattern to form a hole pattern in the mold layer and the supporter layer of the first cell area.Type: GrantFiled: September 23, 2020Date of Patent: March 7, 2023Assignee: Samsung Electronics Co., Ltd.Inventors: Yoon Young Choi, Dong Kyun Lee, Sang Oh Lee, Sang Jae Park
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Patent number: 11489179Abstract: A hierarchical fault classification method for a fuel cell system, a multi-stage fault diagnosis method therefor, and a fault diagnosis device therefor are disclosed. The fuel cell system is divided into a subsystem, a component, and an element step by step. The multi-stage fault diagnosis method includes detecting a subsystem, a fault of which occurs, in the fuel cell system composed of a plurality of subsystems and detecting an upper-level component, which causes the fault, among upper-level components included in the subsystem, the fault of which occurs, using measurement data and a control signal.Type: GrantFiled: January 30, 2020Date of Patent: November 1, 2022Assignee: Korea Institute of Energy ResearchInventors: Won Yong Lee, Hwan Yeong Oh, Min Jin Kim, Seok Hee Park, Gu Gon Park, Tae Hyun Yang, Sung Dae Yim, Young Jun Sohn, Byung Chan Bae, Seung Gon Kim, Dong Won Shin, Seung Hee Woo, So Jeong Lee, Hye Jin Lee, Yoon Young Choi
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Patent number: 11376664Abstract: The present disclosure is related to a method to control sizes of core-shell nanoparticles comprising the steps of: manufacturing slurry by irradiating ultrasonic waves to a dispersion solution containing a reducing solvent, a carbon support, a transition metal precursor and a precious metal precursor; manufacturing a solid by filtering the manufactured slurry, followed by washing and drying; and manufacturing a nanoparticle of a transition metal core and a platinum shell by heat-treating the dried solid at a temperature of 450 to 900° C. and a pressure of 1 to 90 bar for 0.5 to 10 hours under N2 atmosphere.Type: GrantFiled: June 30, 2020Date of Patent: July 5, 2022Assignee: KOREA INSTITUTE OF ENERGY RESEARCHInventors: Gu-gon Park, Hyun-uk Park, Won-yong Lee, Sung-dae Yim, Min-jin Kim, Young-jun Sohn, Byungchan Bae, Seung-gon Kim, Dongwon Shin, Hwanyeong Oh, Seung Hee Woo, So Jeong Lee, Hyejin Lee, Yoon Young Choi, Seok-hee Park, Tae-hyun Yang
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Publication number: 20220077471Abstract: The present disclosure relates to a method for manufacturing core-shell particles using carbon monoxide, and more particularly, to a method for manufacturing core-shell particles, the method of which a simple and fast one-pot reaction enables particle manufacturing to reduce process costs, facilitate scale-up, change various types of core and shell metals, and form a multi-layered shell by including the steps of adsorbing carbon monoxide on a transition metal for a core, and reacting carbon monoxide adsorbed on the surface of the transition metal for the core, a metal precursor for a shell, and a solvent to form particles with a core-shell structure having a reduced metal shell layer formed on a transition metal core.Type: ApplicationFiled: September 3, 2021Publication date: March 10, 2022Applicant: KOREA INSTITUTE OF ENERGY RESEARCHInventors: Gu-gon PARK, Eun Jik LEE, Kyunghee KIM, Sung-dae YIM, Seok-hee PARK, Min-ji KIM, Young-jun SOHN, Byungchan BAE, Seung-gon KIM, Dongwon SHIN, Hwanyeong OH, Seung Hee WOO, So Jeong LEE, Hyejin LEE, Yoon Young CHOI, Won-yong LEE, Tae-hyun YANG
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Publication number: 20210272817Abstract: Provided is a method of manufacturing a semiconductor device. The method includes providing a substrate in which a main area including a first cell area and a first peripheral area, and an edge area including a second cell area and a second peripheral area are defined, sequentially forming a mold layer, a supporter layer, a mask layer, and a preliminary pattern layer on the substrate, exposing the preliminary pattern layer to light to simultaneously form a first pattern and a second pattern on the mask layer of the first cell area and the second cell area, respectively, forming an etch stop layer on the second pattern and etching the mask layer using the etch stop layer and the first pattern to form a hole pattern in the mold layer and the supporter layer of the first cell area.Type: ApplicationFiled: September 23, 2020Publication date: September 2, 2021Inventors: YOON YOUNG CHOI, DONG KYUN LEE, SANG OH LEE, SANG JAE PARK