Patents by Inventor Hyun Chul Lee

Hyun Chul 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).

  • Publication number: 20240240008
    Abstract: The present disclosure relates to a resin composition and relates to a resin composition having excellent heat resistance and impact resistance and accomplishing the high degree of blackness.
    Type: Application
    Filed: September 15, 2023
    Publication date: July 18, 2024
    Applicants: HYUNDAI MOTOR COMPANY, Kia Corporation, LG CHEM, LTD.
    Inventors: Min Jin CHOI, Choon Ho LEE, Woo Chul JUNG, Kyoung Sil LEE, Hyun Jun RYU, Suk Jo CHOI, Myoung Jun LIM, Tae Hoon KIM
  • Publication number: 20240239675
    Abstract: The present disclosure relates to a lithium hydroxide manufacturing method, which includes: roasting a lithium-containing raw material in sulfuric acid; leaching the roasted lithium-containing raw material to obtain a solution containing lithium sulfate; a first purifying the leaching solution with a pH of 7.1 to 9.5; a second purifying the first purified solution with pH of 9 to 11; and obtaining an aqueous solution of a lithium hydroxide by bipolar electrodialysis of the second purified a solution.
    Type: Application
    Filed: August 24, 2021
    Publication date: July 18, 2024
    Applicants: RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & SCIENCE & TECHNOLOGY, POSCO CO., LTD.
    Inventors: Woo Chul JUNG, Gi-Chun HAN, Young-Seon KO, Seung Goo KIM, Kiyoung KIM, Woonkyoung PARK, Kyunghoon KIM, Juyoung KIM, Hyun Woo LEE
  • Patent number: 12037442
    Abstract: The present invention provides a post-treatment method of a vinyl chloride-based polymer including: (a) preparing a stream containing vinyl chloride-based polymer powder and unreacted vinyl chloride-based monomers by drying a vinyl chloride-based polymer latex in a drying unit; (b) filtering the stream containing the vinyl chloride-based polymer powder and the unreacted vinyl chloride-based monomers in a filtering unit; and (c) recirculating a gas containing the unreacted vinyl chloride-based monomers discharged from the filtering unit to a latex storage unit.
    Type: Grant
    Filed: June 22, 2020
    Date of Patent: July 16, 2024
    Assignee: LG CHEM, LTD.
    Inventors: Heung Kwon Bae, Hyun Min Lee, Kyung Seog Youk, Joong Chul Lim, Se Woong Lee, Jung Rae Lee
  • Publication number: 20240235560
    Abstract: A clock generation circuit includes a control clock generation circuit and first and second clock synchronization circuits. The control clock generation circuit compares a reference voltage with first and second feedback clock signals to generate first and second control clock signals. The first clock synchronization circuit makes the first and second feedback clock signals transit in synchronization with the first and second control clock signals. The second clock synchronization circuit generates first and second phase clock signals in synchronization with the first feedback clock signal and the second feedback clock signal.
    Type: Application
    Filed: March 25, 2024
    Publication date: July 11, 2024
    Applicant: SK hynix Inc.
    Inventor: Hyun Chul LEE
  • Patent number: 12021040
    Abstract: An overlay mark, an overlay measurement method using the same, and a manufacturing method of a semiconductor device using the same are provided. The overlay mark is for measuring an overlay based on an image, is configured to determine a relative misalignment between at least two pattern layers, and includes first to fourth overlay marks. The first overlay mark has a pair of first Moire patterns disposed on a center portion of the overlay mark. The second overlay mark has a pair of second Moire patterns disposed so as to face each other with the first Moire patterns interposed therebetween. The third overlay mark has a pair of third Moire patterns disposed on a first diagonal line with the first Moire patterns interposed therebetween. The fourth overlay mark has a pair of fourth Moire patterns disposed on a second diagonal line with the first Moire patterns interposed therebetween.
    Type: Grant
    Filed: May 9, 2023
    Date of Patent: June 25, 2024
    Assignee: AUROS TECHNOLOGY, INC.
    Inventors: Hyun Chul Lee, Hyun Jin Chang, Sung Hoon Hong, Young Je Woo
  • Patent number: 12016982
    Abstract: A filter and a filter system including the filter. The filter includes a porous filter frame having a first upstream-side surface, and a second downstream-side surface based on a thickness direction, the porous filter frame filtering particulate matter. A copper material layer is disposed on at least a portion of the first upstream-side surface of the filter frame.
    Type: Grant
    Filed: July 8, 2021
    Date of Patent: June 25, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyukjae Kwon, Minseok Koo, Hyun Chul Lee, Sukeun Kuk, Dongsik Yang, Sehyeong Oh, Inhyuock Cho, Sangmin Ji
  • Publication number: 20240173710
    Abstract: A p-n heterojunction photocatalyst, an air purifier including the p-n heterojunction photocatalyst, and a method of preparing the p-n heterojunction photocatalyst. The p-n heterojunction photocatalyst includes a granule type composite which includes: first compound particles; and second compound particles on at least a portion of surfaces of the first compound particles, wherein the composite has a size of about 0.9 ?m to about 5 ?m based on a major axis, a standard deviation of the size is about ±0.9 ?m or less, and upon exposure to energy irradiation, the composite generates a reactive oxygen species of singlet oxygen (1O2) to induce photolysis of gaseous pollutants.
    Type: Application
    Filed: May 18, 2023
    Publication date: May 30, 2024
    Inventors: Su Keun KUK, Hyun Chul LEE, Sang Min JI, Sungwoo KANG, Dong Sik YANG
  • Publication number: 20240136300
    Abstract: An overlay mark forming a Moire pattern, an overlay measurement method using the overlay mark, an overlay measurement apparatus using the overlay mark, and a manufacturing method of a semiconductor device using the overlay mark are provided. The overlay mark for measuring an overlay based on an image is configured to determine a relative misalignment between at least two pattern layers. The overlay mark includes a first overlay mark including a pair of first grating patterns which has a first pitch along a first direction and which is rotationally symmetrical by 180 degrees, and includes a second overlay mark including a pair of second grating patterns and a pair of third grating patterns. The second grating patterns partially overlap the first grating patterns and are rotationally symmetrical by 180 degrees, and the third grating patterns partially overlap the first grating patterns and are rotationally symmetrical by 180 degrees.
    Type: Application
    Filed: May 4, 2023
    Publication date: April 25, 2024
    Inventors: Hyun Chul LEE, Hyun Jin CHANG
  • Patent number: 11965936
    Abstract: A battery diagnosis apparatus for diagnosing a battery including battery cells, the apparatus according to an embodiment may include a voltage measurer for measuring the voltage of each battery cell during a preset period of time, a voltage variation calculator for calculating an individual voltage variation of each battery cell during the preset period of time, an average voltage variation calculator for calculating an average voltage variation of the battery cells during the preset period of time, and an abnormality detector for determining that a voltage abnormality has occurred in at least one battery cell among the battery cells when a difference between the voltage variation of the at least one battery cell and the average voltage variation of the at least one battery cell is greater than a threshold value.
    Type: Grant
    Filed: July 23, 2020
    Date of Patent: April 23, 2024
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Hyun Chul Lee, Dong Keun Kwon, Sung Yul Yoon, Seung Hyun Kim, An Soo Kim
  • Patent number: 11967961
    Abstract: A clock generation circuit includes a control clock generation circuit and first and second clock synchronization circuits. The control clock generation circuit compares a reference voltage with first and second feedback clock signals to generate first and second control clock signals. The first clock synchronization circuit makes the first and second feedback clock signals transit in synchronization with the first and second control clock signals. The second clock synchronization circuit generates first and second phase clock signals in synchronization with the first feedback clock signal and the second feedback clock signal.
    Type: Grant
    Filed: May 5, 2021
    Date of Patent: April 23, 2024
    Assignee: SK hynix Inc.
    Inventor: Hyun Chul Lee
  • Publication number: 20240091692
    Abstract: An air purification module which purifies introduced unpurified air and discharge purified air, includes a first filter supporter extending in a first direction and having a penetrating shape including a first hollow region, a first filter which is supported by the first filter supporter and penetrates a side portion of the first filter supporter, a second filter supporter extending in the first direction, having a penetrating shape including a second hollow region, and disposed in the first hollow region, a second filter which is supported by the second filter supporter and penetrates a side portion of the second filter supporter, and a light source module disposed in the second hollow region.
    Type: Application
    Filed: February 24, 2023
    Publication date: March 21, 2024
    Inventors: Mijong KIM, Dongjin HAM, Hyukjae KWON, Hyun Chul LEE
  • Publication number: 20240075988
    Abstract: An embodiment roof assembly for a vehicle includes a roof panel including a core, an upper skin attached to a top surface of the core, and a lower skin attached to a bottom surface of the core, a face sheet disposed above the roof panel, and a foam layer interposed between the roof panel and the face sheet.
    Type: Application
    Filed: March 21, 2023
    Publication date: March 7, 2024
    Inventors: Kyung Min Yu, Dong Won Kim, Chang Hun Lee, Min Jun Kim, Young Ju Kim, Hyun Chul Lee
  • Publication number: 20240066515
    Abstract: An organic-inorganic composite catalyst wherein the organic-inorganic composite catalyst includes a porous carbonaceous particle, a first compound; and a metal oxide particle, wherein the first compound and the metal oxide particle are supported on the porous carbonaceous particle, the first compound contains a polar functional group, an anion, or a combination thereof, the metal oxide is represented by the formula MaOb, wherein 0<a?4, 0<b?5, and M is a metal of Groups 2 to 16 of the Periodic Table of Elements, or a combination thereof, and the organic-inorganic composite catalyst is configured to remove a second compound from an unpurified air flow including the second compound.
    Type: Application
    Filed: August 16, 2023
    Publication date: February 29, 2024
    Inventors: Sukeun Kuk, Taehun Yeon, Hyun Chul Lee, Minseok Koo, Hyukjae Kwon, Dongsik Yang, Sehyeong Oh, Sangmin Ji, Hyeonsu Heo
  • Publication number: 20240058793
    Abstract: A photocatalyst including a first metal oxide; and a second metal oxide, wherein the first metal oxide is disposed on a surface of the second metal oxide, and wherein absorbance of the photocatalyst in a wavelength region of about 200 nanometers (nm) to about 600 nm is about 5% to about 50% greater than an absorbance of TiO2 in the wavelength region of about 200 nm to about 600 nm.
    Type: Application
    Filed: January 24, 2023
    Publication date: February 22, 2024
    Inventors: MinSeok Koo, Hyukjae Kwon, Dongsik Yang, Hyun Chul Lee, Jongmin Lee, Sangmin Ji
  • Publication number: 20240042089
    Abstract: Provided are an air purification module and an air purification system including the same. The air purification module is configured to purify influent unpurified air and discharge purified air and includes: a catalyst filter including a photocatalyst and an oxidation catalyst; and a light-emitting heat source disposed adjacent to the catalyst filter, wherein the light-emitting heat source irradiates, to the catalyst filter, light for activating the photocatalyst, and provides heat to activate the oxidation catalyst, and a temperature of the light-emitting heat source is higher than a temperature of the unpurified air.
    Type: Application
    Filed: February 21, 2023
    Publication date: February 8, 2024
    Inventors: Dongjin HAM, Mijong KIM, Minseok KOO, Hyukjae KWON, Sehyeong OH, Hyun Chul LEE
  • Publication number: 20230398491
    Abstract: An air purifier includes a reactor having a hollow shape extending in a first direction, a first purifying portion disposed inside the reactor in a fixed manner, where the first purifying portion has a facing surface perpendicular to the first direction, and includes an adsorbent for adsorbing a pollutant inflowing into the reactor and a first catalytic oxidant for removing a desorbed pollutant, and a heating portion disposed opposite to the facing surface, where the heating portion applies heat to a partial area of the first purifying portion, and is movable with respect to the first purifying portion along a plane perpendicular to the first direction.
    Type: Application
    Filed: November 18, 2022
    Publication date: December 14, 2023
    Inventors: Dongjin HAM, Hyukjae Kwon, Mijong KIM, Sehyeong OH, Hyun Chul LEE
  • Patent number: 11815559
    Abstract: An apparatus for diagnosing a battery cell according to an embodiment may include a voltage measurer that measures a voltage of each battery cell of a battery module in a state of an open circuit voltage of a battery, a memory that stores the measured voltage at predetermined time intervals, and an abnormality detector that compares a current measured voltage with a measured voltage before a preset time for each battery cell and determines that an abnormality has occurred in a first battery cell among the battery cells when a difference between the current measured voltage of the at least one battery cell and the measured voltage of the at least one battery cell before the preset time exceeds a reference value.
    Type: Grant
    Filed: July 3, 2020
    Date of Patent: November 14, 2023
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Sung Yul Yoon, Dong Keun Kwon, Hyun Chul Lee, Seung Hyun Kim, An Soo Kim
  • Patent number: 11815558
    Abstract: The present disclosure relates to a battery management system and method for diagnosing abnormal deterioration of a battery cell, and provides the battery management system including an SOC calculation unit for calculating a state of charge (SOC) of a plurality of battery cells, a change amount calculation unit for calculating, for each of the plurality of battery cells, an SOC change amount that is a change amount of the calculated SOC during a preset period and an SOC change amount average that is an average of the SOC change amount of all the plurality of battery cells, and an abnormal deterioration diagnosis unit for diagnosing an abnormal deterioration of each of the plurality of battery cells using the SOC change amount and the SOC change amount average thereby accurately diagnosing abnormal deterioration of battery cells.
    Type: Grant
    Filed: July 24, 2020
    Date of Patent: November 14, 2023
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Hyun Chul Lee, Dong Keun Kwon, Sung Yul Yoon, Seung Hyun Kim, An Soo Kim, Chae Bin Shin
  • Patent number: 11804549
    Abstract: An integrated circuit device includes a device isolation trench defining an active area, a gate trench extending in a first direction across the active area and the device isolation film, a gate dielectric film covering an inner wall of the gate trench, and a conductive line filling a part of the gate trench above the gate dielectric film. The active area includes a fin body portion located under the conductive line, and a thinner fin portion protruding from the fin body portion toward the conductive line and having a width less than a width of the fin body portion in the first direction.
    Type: Grant
    Filed: December 16, 2022
    Date of Patent: October 31, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ji-seung Lee, Yun-seung Kang, Soung-hee Lee, Sang-gyo Chung, Hyun-chul Lee
  • Patent number: 11796599
    Abstract: A battery diagnosis apparatus according to the present disclosure includes a voltage measurer for measuring a cell voltage of each of first to nth battery cells and a processor, wherein n is a natural number of 2 or greater. The processor determines an average cell voltage of each battery cell for a first rest period from a first time point to a second time point, based on the cell voltage of each battery cell measured a first number of times for the first rest period, determines an average cell voltage of each battery cell for a second rest period and diagnoses a fault of each battery cell based on the average cell voltage of each battery cell for the first rest period and the average cell voltage of each battery cell for the second rest period.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: October 24, 2023
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Hyun-Chul Lee, Dong-Keun Kwon, Seung-Hyun Kim, An-Soo Kim, Sung-Yul Yoon