Patents by Inventor Hyuk Choi

Hyuk 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).

  • Publication number: 20230365780
    Abstract: The present disclosure is characterized in comprising a terephthalate-based composition and a citrate-based composition, wherein the terephthalate-based composition comprises di(2-ethylhexyl) terephthalate, hexyl(2-ethylhexyl) terephthalate and dihexyl terephthalate, the citrate-based composition comprises trihexyl citrate, and the hexyl group of the terephthalate and the hexyl group of the citrate are derived from an isomer mixture of hexyl alcohols. If the composition is applied to a resin, migration resistance and stress resistance may be improved, and on the other hand, mechanical properties may be improved.
    Type: Application
    Filed: January 28, 2022
    Publication date: November 16, 2023
    Applicant: LG CHEM, LTD.
    Inventors: Hyun Kyu KIM, Joo Ho KIM, Seok Ho JEONG, Eun Suk KIM, Woo Hyuk CHOI
  • Patent number: 11814556
    Abstract: A coacervate including a catechol-substituted anionic polymer; an adhesive including same; and a method for producing the coacervate are described. More specifically, a coacervate formed by mixing a catechol derivative of a mussel adhesive protein and a catechol-substituted anionic polymer; an adhesive including the coacervate; and a method for producing a coacervate are described. The method includes a step of obtaining a catechol-substituted anionic polymer through catechol substitution of an anionic polymer, and a step of mixing the catechol-substituted anionic polymer and a catechol derivative of a mussel adhesive protein.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: November 14, 2023
    Assignees: POSCO CO., LTD, POSTECH ACADEMY-INDUSTRY FOUNDATION, NATURE GLUETECH CO., LTD.
    Inventors: Hyung Joon Cha, Hyo Jeong Kim, Bong-Hyuk Choi
  • Publication number: 20230360297
    Abstract: An image masking method is provided. The method includes: extracting an object from an image; obtaining characteristic information about the extracted object by analyzing the extracted object; determining whether the extracted object is a masking target according to an input setting value or the obtained characteristic information; and performing masking such that the obtained characteristic information is reflected on the extracted object, in response to determining that the extracted object is the masking target among a plurality of objects extracted from the input image, wherein the setting value is set by an input designating at least a partial region in the input image, and wherein in the determining whether the extracted object is the masking target, an object positioned in the at least a partial region is determined as the masking target among the extracted objects.
    Type: Application
    Filed: July 18, 2023
    Publication date: November 9, 2023
    Applicant: HANWHA TECHWIN CO., LTD.
    Inventors: Jin Hyuk CHOI, Song Taek JEONG, Jae Cheon SONG
  • Publication number: 20230345106
    Abstract: The appearance inspection apparatus for a secondary battery according to the disclosure can obtain an image corresponding to an area of not less than 180 degrees of a lateral surface of the secondary battery when the secondary battery is captured at a first posture, and obtain an image corresponding to the entire lateral surface of the secondary battery when the secondary battery is captured at a second posture, thereby having an effect on significantly improving inspection speed.
    Type: Application
    Filed: November 1, 2022
    Publication date: October 26, 2023
    Inventors: Nam Dong KIM, Sang Sik MIN, Won Young JEONG, Jae Hyuk CHOI, Jin Hyeok KO, Yong Deong KANG, Sang Baek KIM
  • Publication number: 20230340228
    Abstract: The present invention is characterized in including a dihexyl benzene dicarboxylate having an alkyl group derived from an isomer mixture of hexyl alcohol, in the case of applying to a resin, stress resistance and mechanical properties may be maintained to the same or higher levels, and plasticization efficiency may be markedly improved while maintaining the balance among tensile strength, elongation rate and migration resistance.
    Type: Application
    Filed: November 23, 2021
    Publication date: October 26, 2023
    Applicant: LG CHEM, LTD.
    Inventors: Hyun Kyu KIM, Joo Ho KIM, Woo Hyuk CHOI, Jeong Ju MOON, Seok Ho JEONG
  • Publication number: 20230342910
    Abstract: Disclosed is an apparatus for inspecting the appearance of a can for a secondary battery, which can obtain an image of the appearance of the can for the secondary battery and determine whether there is a defect. The apparatus for inspecting the appearance of a can for a secondary battery according to the disclosure obtains lateral images of a plurality of cans at once, and generates the lateral image for one can by extracting an area where each can is captured, thereby speeding up the inspection. Further, the lateral images of the can are obtained with light emitted in various combinations, thereby having an effect on improving the accuracy in defect diagnosis.
    Type: Application
    Filed: November 1, 2022
    Publication date: October 26, 2023
    Inventors: Nam Dong KIM, Sang Sik MIN, Won Young JEONG, Jae Hyuk CHOI, Jin Hyeok KO, Yong Deong KANG, Sang Baek KIM, Yoon Been CHO
  • Publication number: 20230342904
    Abstract: Disclosed is an appearance inspection apparatus for a secondary battery, which simultaneously obtains laterals image by picking up a plurality of secondary batteries loaded in a tray, and then simultaneously obtains top and bottom images of the secondary batteries by returning the plurality of inspected secondary batteries back to the tray and transporting the tray.
    Type: Application
    Filed: November 1, 2022
    Publication date: October 26, 2023
    Inventors: Nam Dong KIM, Sang Sik MIN, Won Young JEONG, Jae Hyuk CHOI, Jin Hyeok KO, Yong Deong KANG, Sang Baek KIM
  • Patent number: 11795299
    Abstract: Provided is a plasticizer composition including a cyclohexane-1,2-diester-based material of Formula 1 and a trimellitate-based material of Formula 2: wherein in Formula 1 and Formula 2, R1 to R5 are each independently an alkyl group of 8 to 10 carbon atoms.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: October 24, 2023
    Assignee: LG Chem, Ltd.
    Inventors: Hyun Kyu Kim, Yun Ki Cho, Woo Hyuk Choi, Jeong Ju Moon, Joo Ho Kim, Seok Ho Jeong
  • Publication number: 20230331955
    Abstract: A plasticizer composition including isophthalate derived from a mixture of hexyl alcohol isomers and di(2-ethylhexyl) isophthalate, and a resin composition comprising the same are provided. The plasticizer composition used in the resin composition provides the same level of or improved plasticization efficiency, migration loss and volatile loss, and improved tensile strength and elongation rate.
    Type: Application
    Filed: November 23, 2021
    Publication date: October 19, 2023
    Inventors: Hyun Kyu KIM, Jeong Ju MOON, Joo Ho KIM, Seok Ho JEONG, Eun Suk KIM, Seung Taek Woo, Woo Hyuk CHOI
  • Publication number: 20230331680
    Abstract: The present invention relates to a naphthalimide sulfonate derivative, and a photoacid generator and a photoresist composition which comprise same, and, more specifically, to a naphthalimide sulfonate derivative compound, and a photoacid generator and a photoresist composition which comprise same, the compound having an excellent absorbance of light with an i-line wavelength (365 nm), having a high solubility in an organic solvent, having excellent thermal stability, and exhibiting a good acid generation rate.
    Type: Application
    Filed: September 29, 2021
    Publication date: October 19, 2023
    Applicant: SAMYANG CORPORATION
    Inventors: Chun Rim OH, Dae Hyuk CHOI, Min Jung KIM, Deuk Rak LEE, Won Jung LEE, Yu Na CHOI, Ji Eun CHOI
  • Publication number: 20230330184
    Abstract: This disclosure provides a method of preventing, alleviating or treating a condition (i.e., neutropenia) in a subject in need thereof, the condition characterized by compromised white blood cell production in the subject. The method includes administering to the subject a therapeutically effective amount of a protein complex on the same day as a chemotherapy regimen, wherein the protein complex is a modified human granulocyte-colony stimulating factor (hG-CSF) covalently linked to an immunoglobulin Fc region via a non-peptidyl polymer. The non-peptidyl polymer is site-specifically linked to an N-terminus of the immunoglobulin Fc region, and the modified hG-CSF comprises substitutions in at least one of Cys17 and Pro65.
    Type: Application
    Filed: May 16, 2023
    Publication date: October 19, 2023
    Applicants: Spectrum Pharmaceuticals Inc., Hanmi Pharm Co., Ltd.
    Inventors: Gajanan Bhat, Shanta Chawla, Jae Hyuk Choi, Eun jung Kim, Yu Yon Kim, Gyu Hyan Lee, Hyesun Han
  • Publication number: 20230317012
    Abstract: Embodiments relate to a display device including pixels that compensate a threshold voltage of a driving transistor using the body effect. Pixel data for the driving transistor increases the source-bulk voltage of the driving transistor during a compensation period as a result of the body effect. A separate reference voltage is not received at the pixel for the purpose of compensating the threshold voltage of the driving transistor. The increased source-bulk voltage is then used in an emission period of the pixel to compensate for the threshold voltage of the driving transistor.
    Type: Application
    Filed: March 31, 2022
    Publication date: October 5, 2023
    Inventors: Qianqian Wang, Min Hyuk Choi, Gang Chen
  • Publication number: 20230317000
    Abstract: Embodiments relate to a display device with subpixels that share switch transistors that selectively connect sources of driving transistors to a high voltage source. Further, part of reset transistors or part of a select transistor may be shared across multiple subpixels. The reset transistor selectively connects an anode of an organic light emitting diode (OLED) to a low voltage source. The select transistor selectively passes through pixel data from a data line when a gate signal is received via a gate line. Driver transistors and capacitors of the subpixels are independent and not shared. In this way, the dimensions of the subpixels may be reduced and enable increase in the density of the pixels.
    Type: Application
    Filed: March 31, 2022
    Publication date: October 5, 2023
    Inventors: Gang Chen, Qianqian Wang, Min Hyuk Choi
  • Publication number: 20230317006
    Abstract: Embodiments relate to a display device including pixels that compensate a threshold voltage of a driving transistor, the pixels arranged in a plurality of rows. The gate of the driving transistor of each pixel is coupled to a pixel data switch and a reference voltage switch, configured to selectively provide pixel data provided via a data line and a reference voltage provided via a separate reference voltage line to the gate of the driving transistor, respectively. As pixel data and the reference voltage are provided to the driving transistor via separate lines, the compensation period of the pixel may overlap in time with a data writing period of pixels of a previous row of the display device, increasing the rate at which the display device is able to program the pixels of each row.
    Type: Application
    Filed: March 16, 2023
    Publication date: October 5, 2023
    Inventors: Gyungmin Kim, Min Hyuk Choi, Takanori Shibasaki
  • Publication number: 20230282177
    Abstract: A display may be foveated to reduce power consumption and increase row scan timing margin. In one embodiment, the display includes pixels, where a first set of the pixels are formed to have a low resolution and a second set of the pixels are formed to have a high resolution. A first subset of the first set of pixels is formed in a first pixel cell layout and includes anodes formed in a first anode layout. A second subset of the second set of pixels is formed in a second pixel layout and includes anodes formed in a second anode layout. In another embodiment, the display similarly includes pixels formed to have a low resolution or a high resolution. The pixels of this embodiment may be formed in the same anode layout.
    Type: Application
    Filed: March 1, 2023
    Publication date: September 7, 2023
    Inventors: Gyungmin Kim, Min Hyuk Choi, Takanori Shibasaki, Qianqian Wang
  • Patent number: 11748926
    Abstract: An image masking method is provided. The method includes: extracting an object from an image; obtaining characteristic information about the extracted object by analyzing the extracted object; determining whether the extracted object is a masking target according to an input setting value or the obtained characteristic information; and performing masking such that the obtained characteristic information is reflected on the extracted object, in response to determining that the extracted object is the masking target among a plurality of objects extracted from the input image, wherein the setting value is set by an input designating at least a partial region in the input image, and wherein in the determining whether the extracted object is the masking target, an object positioned in the at least a partial region is determined as the masking target among the extracted objects.
    Type: Grant
    Filed: June 1, 2020
    Date of Patent: September 5, 2023
    Assignee: HANWHA TECHWIN CO., LTD.
    Inventors: Jin Hyuk Choi, Song Taek Jeong, Jae Cheon Song
  • Publication number: 20230270822
    Abstract: This disclosure provides a method of preventing, alleviating or treating a condition (i.e., neutropenia) in a subject in need thereof, the condition characterized by compromised white blood cell production in the subject. The method includes administering to the subject a therapeutically effective amount of a protein complex on the same day as a chemotherapy regimen, wherein the protein complex is a modified human granulocyte-colony stimulating factor (hG-CSF) covalently linked to an immunoglobulin Fc region via a non-peptidyl polymer. The non-peptidyl polymer is site-specifically linked to an N-terminus of the immunoglobulin Fc region, and the modified hG-CSF comprises substitutions in at least one of Cys17 and Pro65.
    Type: Application
    Filed: March 10, 2023
    Publication date: August 31, 2023
    Applicant: Spectrum Pharmaceuticals Inc.
    Inventors: Gajanan Bhat, Shanta Chawla, Jae Hyuk Choi, Eun jung Kim, Yu Yon Kim, Gyu Hyan Lee, Hyesun Han
  • Patent number: 11744139
    Abstract: A phase-transition optical isomer compound is described, a transparent EL display device including the phase-transition optical isomer compound and a method of fabricating the EL display device, where a phase of the phase-transition optical isomer compound is transited by light irradiation and a second electrode of the EL display device is selectively deposited without a masking process.
    Type: Grant
    Filed: September 24, 2021
    Date of Patent: August 29, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Jun-Sik Hwang, Nam Ki, Chang-Woo Chun, Eun-Ji Sim, Soo-Hyuk Choi
  • Patent number: 11744022
    Abstract: A method of forming a multi-layer circuit on a curved substrate includes forming, by a laser direct structuring process, a first layer of the multi-layer circuit on a first surface of the curved substrate. The method includes applying a first layer of paint to the first layer of the multi-layer circuit. The method includes forming, by the laser direct structuring process, a second layer of the multi-layer circuit on the first layer of the paint and electrically coupled to the first layer of the multi-layer circuit. The method includes applying a second layer of paint over the second layer of the multi-layer circuit and forming, by the laser direct structuring process, a third layer of the multi-layer circuit on the second layer of the paint and electrically coupled to the second layer of the multi-layer circuit.
    Type: Grant
    Filed: November 29, 2021
    Date of Patent: August 29, 2023
    Assignee: Kyocera AVX Components (San Diego), Inc.
    Inventors: Seung Hyuk Choi, Hyun Jun Hong, Tae Wook Kim, Cheong Ho Ryu, Young Sang Kim, Sung Jun Kim
  • Publication number: 20230260904
    Abstract: A semiconductor device includes; a semiconductor substrate including a first region and a second region, a first interlayer insulating layer on the second region, a capping layer disposed on the first interlayer insulating layer, an upper surface of the capping layer includes a first trench, conductive patterns spaced apart on the capping layer, side surfaces of the conductive patterns are aligned with inner side surfaces of the first trench, and a peripheral separation pattern disposed in the first trench to cover the side surfaces of the conductive patterns. The peripheral separation pattern has a first thickness on the side surfaces of the conductive patterns and a second thickness greater than or equal to the first thickness on a lower surface.
    Type: Application
    Filed: April 21, 2023
    Publication date: August 17, 2023
    Inventors: IN-HYUK CHOI, WONCHUL LEE, JOONHYOUNG YANG