Patents by Inventor Jin Yoo

Jin Yoo 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: 20250249477
    Abstract: The present invention pertains to a method for producing a graphene-coated steel sheet, the method comprising the steps of: modifying the surface of the steel sheet so that the surface is negatively charged; forming a positively-charged first graphene oxide layer on the surface-modified steel sheet; forming a negatively-charged second graphene oxide layer on the first graphene oxide layer; and heat-treating the steel sheet on which the first and second graphene oxide layers are formed. The present invention provides a graphene coating method which can be easily applied to large-area coating through a simple process without a special dispersant or binder, and has the effect of allowing the excellent physical properties of graphene to be more efficiently exhibited.
    Type: Application
    Filed: April 9, 2025
    Publication date: August 7, 2025
    Applicant: POSCO
    Inventors: Hye-Jin Yoo, Jung-Su Kim, Je-Hoon Baek, Chang-Se Byeon
  • Publication number: 20250218350
    Abstract: A display device includes: a first sub-pixel configured to receive a first data voltage and drive a first light emitting element included in the first sub-pixel; a second sub-pixel configured to receive a second data voltage and drive a second light emitting element included in the second sub-pixel; a third sub-pixel configured to receive a third data voltage and drive a third light emitting element included in the third sub-pixel. At least one of dynamic ranges, maximum voltages, and minimum voltages of the first data voltage, the second data voltage, and the third data voltage are different from each other. An emission time of the first light emitting element, an emission time of the second light emitting element, and an emission time of the third light emitting element are different from each other.
    Type: Application
    Filed: November 1, 2024
    Publication date: July 3, 2025
    Inventors: Hyun Suk Lee, Seung Jin Yoo
  • Publication number: 20250218368
    Abstract: A pixel circuit includes a driving element including a first electrode connected to a first power line, a gate electrode connected to a first node, and a second electrode connected to a second node; a first switch element configured to apply a data voltage to the first node in response to a first gate signal; a second switch element configured to connect a third node to the second node in response to a reset signal or the first gate signal; a third switch element configured to connect a sensing line to the third node in response to a second gate signal; a fourth switch element configured to connect a second power line to the third node in response to a third gate signal; a capacitor connected between the first node and the second node; and a light-emitting element connected between the second node and the third node.
    Type: Application
    Filed: October 29, 2024
    Publication date: July 3, 2025
    Applicant: LG Display Co., Ltd.
    Inventors: Hyun Suk LEE, Seung Jin YOO
  • Publication number: 20250197340
    Abstract: A method for preparing (meth)acrylic acid, the method including the steps of: bringing a mixed gas including (meth)acrylic acid into contact with an absorption solvent in an absorption column; supplying a first (meth)acrylic acid solution discharged from a lower portion of the absorption column to a high-boiling-point by-product separation column, and supplying an upper discharge stream from the high-boiling-point by-product separation column to a crystallizer; supplying a second (meth)acrylic acid solution discharged from a side portion of the absorption column to the crystallizer; and obtaining (meth)acrylic acid crystallized in the crystallizer, and circulating a mother liquor recovered from the crystallizer to the absorption column.
    Type: Application
    Filed: August 24, 2023
    Publication date: June 19, 2025
    Inventors: Sung Jin Yoo, Kyung Soo Jang, Sung Kyu Lee
  • Publication number: 20250115649
    Abstract: The present application relates to compositions and methods comprising polypeptides derived from MFG-E8 for treating and preventing fibrosis and other diseases.
    Type: Application
    Filed: October 24, 2024
    Publication date: April 10, 2025
    Inventors: Choongseong Han, Dong-Hun Woo, Xiong Jin, Jaehun Lee, Geun Ho An, Tack Jin Yoo, Jinwoo Chung
  • Publication number: 20250109381
    Abstract: The present invention relates to a composition for culturing NK cells, comprising alloferon, which increases the yield of NK cells compared to when using a conventional NK cell medium, due to the addition made to the medium during the culture of NK cells, and can lead to the activation of NK cells.
    Type: Application
    Filed: January 28, 2022
    Publication date: April 3, 2025
    Inventors: Gwang Jin YOO, Woon Young SEO
  • Publication number: 20250073270
    Abstract: The present invention relates to a composition for preventing or treating cancer, comprising NK cells cultured in the presence of alloferon, wherein the NK cells cultured using alloferon have excellent cancer-killing properties. Further, when alloferon and NK cells are administered together, the cancer prevention or killing effect can be further increased.
    Type: Application
    Filed: January 28, 2022
    Publication date: March 6, 2025
    Inventors: Gwang Jin YOO, Woon Young SEO
  • Patent number: 12243479
    Abstract: A pixel circuit and a display panel including the same are disclosed according to embodiments. The pixel circuit according to embodiments includes a first pixel circuit including a first EM transistor to which a pulse of a first EM signal is applied, and a first driving transistor for driving a first light emitting element; and a second pixel circuit including a second EM transistor to which a pulse of a second EM signal is applied, and a second driving transistor for driving a second light emitting element. A node between the first EM transistor and the first driving transistor and a node between the second EM transistor and the second driving transistor are connected.
    Type: Grant
    Filed: July 20, 2022
    Date of Patent: March 4, 2025
    Assignee: LG Display Co., Ltd.
    Inventors: Jin Woo Jung, Sang Jin Nam, Hyun Suk Lee, Seung Jin Yoo
  • Publication number: 20250023034
    Abstract: A negative active material includes a core having a silicon-carbon composite and a polymer coating layer formed on the core, wherein the negative active material has about 1.02 to about 1.6 of a ratio of height of N1s peak occurring at about 400±about 0.5 eV relative to a height of N1s peak occurring at about 405±about 0.5 eV of a bonding energy, and about 1.02 to about 3.0 of a ratio of a height of C1s peak occurring at about 286.5±about 0.5 eV relative to a height of C1s peak occurring at about 290±about 0.5 eV when an X-ray photoelectron spectroscopy (XPS) is measured.
    Type: Application
    Filed: October 24, 2023
    Publication date: January 16, 2025
    Inventors: Hyejin KIM, Pil Jin YOO, Deok-Hyun KIM, Youngugk KIM, Jaehou NAH, Ilyoung CHOI, Eunji KANG, Sunil PARK, Jaewon KIM, Doori OH, Yookyung KIM, Narae KIM, Banseok LEE
  • Publication number: 20250019337
    Abstract: A method for preparing (meth)acrylic acid, including: bringing a mixed gas including (meth)acrylic acid into contact with water in an absorption column to obtain first and second aqueous (meth)acrylic acid solutions; discharging the first aqueous (meth)acrylic acid solution from a lower portion of the absorption column and supplying the solution to a crystallizer, and discharging the second aqueous (meth)acrylic acid solution from a side portion of the absorption column; supplying the second aqueous (meth)acrylic acid solution to a water separation column to obtain a distillate; supplying the distillate to a high-boiling-point by-product separation column, and supplying an upper discharge stream from the high-boiling-point by-product separation column to the crystallizer; and obtaining purified (meth)acrylic acid in the crystallizer, and circulating a part of mother liquor recovered in the crystallizer to the absorption column and the remainder to the water separation column.
    Type: Application
    Filed: August 24, 2023
    Publication date: January 16, 2025
    Inventors: Sung Jin Yoo, Kyung Soo Jang, Sung Kyu Lee
  • Publication number: 20250010749
    Abstract: The present invention relates to a car carrier having an electric vehicle charging system capable of charging an electric vehicle in conjunction with a power management system of the car carrier. A car carrier having an electric vehicle charging system according to one embodiment of the present invention may comprise: a power management unit that manages the power supply transmitted from a generator generating electric power to the components of the car carrier; a charging management unit that receives at least a portion of the power from the generator by making a request to the power management unit, and manages charging of electric vehicles which are placed on the decks of the car carrier and transported; and a charging station that charges the electric vehicles with the power supplied according to the management of the charging management unit.
    Type: Application
    Filed: October 27, 2022
    Publication date: January 9, 2025
    Inventors: Chul-Ho NOH, Sang-Hyun KIM, Nam-Sook KANG, Young-Real KWAK, Seung-Jin YOO, Jae-Ik YOO, Jun-Beum AN
  • Publication number: 20250011271
    Abstract: A method for preparing a (meth)acrylic acid, the method including: bringing a mixed gas containing (meth)acrylic acid into contact with water in an absorption column to obtain a (meth)acrylic acid aqueous solution; supplying the (meth)acrylic acid aqueous solution to a crystallizer, performing crystallization to obtain purified (meth)acrylic acid, and supplying a mother liquor separated from the purified (meth)acrylic acid to a water separation column; separating, in the water separation column, an upper discharge stream containing water and a lower discharge stream containing (meth)acrylic acid and high-boiling by-products; and supplying the lower discharge stream of the water separation column to a high boiling point by-product separation column, and supplying an upper discharge stream of the high-boiling point by-product separation column containing (meth)acrylic acid to the crystallizer.
    Type: Application
    Filed: August 24, 2023
    Publication date: January 9, 2025
    Inventors: Sung Jin Yoo, Kyung Soo Jang, Sung Kyu Lee
  • Publication number: 20250002439
    Abstract: A method for preparing (meth)acrylic acid, including: contacting a mixed gas containing (meth)acrylic acid with water in an absorption column to obtain a (meth)acrylic acid aqueous solution; crystallizing the (meth)acrylic acid aqueous solution in a crystallizer to obtain purified (meth)acrylic acid and a mother liquor; supplying a part of the mother liquor to an extraction column; contacting the mother liquor with an extraction solvent in the extraction column to obtain a raffinate and an extract, and then supplying an extract stream including the extract to a water separation column; separating, in the water separation column, into a water separation column upper discharge stream and a water separation column lower discharge stream; and supplying the water separation column lower discharge stream to a high-boiling-point by-product separation column, and supplying an upper discharge stream of the high-boiling-point by-product separation column containing (meth)acrylic acid to the crystallizer.
    Type: Application
    Filed: August 24, 2023
    Publication date: January 2, 2025
    Inventors: Sung Jin Yoo, Kyung Soo Jang, Sung Kyu Lee
  • Patent number: 12139518
    Abstract: The present application relates to compositions and methods comprising polypeptides derived from MFG-E8 for treating and preventing fibrosis and other diseases.
    Type: Grant
    Filed: October 24, 2019
    Date of Patent: November 12, 2024
    Assignee: Nexel Co., Ltd.
    Inventors: Choongseong Han, Dong-Hun Woo, Xiong Jin, Jaehun Lee, Geun Ho An, Tack Jin Yoo, Jinwoo Chung
  • Publication number: 20240326026
    Abstract: Disclosed are a metal catalyst with a vertical heterojunction interface and a method of producing the same. The metal catalyst with the vertical heterojunction interface according to an embodiment of the disclosure allows hydrogen adsorbed on a transition metal oxide to be transferred to a transition metal sulfide (hydrogen spillover phenomenon), thereby having effects on having both excellent hydrogen adsorption performance and excellent catalyst activities.
    Type: Application
    Filed: March 27, 2024
    Publication date: October 3, 2024
    Applicant: Research & Business Foundation SUNGKYUNKWAN UNIVERSITY
    Inventors: Tae Sung KIM, Jin Ill CHO, Hyun Ho SEOK, Pil Jin YOO, Min Jun KIM
  • Publication number: 20240307094
    Abstract: A bone growth stimulator includes a first screw fastened to the metaphysis portion and having a channel penetrating between a front end and a rear end, a second screw fastened to the metaphysis portion while being disposed in parallel to the first screw and having a channel penetrating between a front end and a rear end, a first rod pin having one side passing through a human tissue that surrounds the long bone and being inserted into the channel of the first screw, and another side exposed to the outside of the human tissue, a second rod pin having one side passing through a human tissue that surrounds the long bone and being inserted into the channel of the second screw, and another side exposed to the outside of the human tissue, and a pressing unit for applying a force in a direction for spacing the first rod pin apart from the second rod pin.
    Type: Application
    Filed: May 19, 2023
    Publication date: September 19, 2024
    Inventors: Seung Jin YOO, Hee Seok YOON
  • Publication number: 20240310531
    Abstract: Methods and apparatus to reduce communications for position, navigation and timing (PNT) determinations are disclosed. A disclosed example apparatus to enable PNT determination for a mobile station includes at least one memory, machine readable instructions, and processor circuitry to at least one of instantiate or execute the machine readable instructions to identify features of signals of opportunity (SOOP) measured at a reference station, generate a model based on the identified features of the SOOP in conjunction with a position and a timing of the reference station, and provide at least one of the model or parameters associated with the model to the mobile station for the PNT determination.
    Type: Application
    Filed: March 13, 2023
    Publication date: September 19, 2024
    Inventors: Rongsheng Li, Kenneth Cecil Clark, Andrey Tolstov, Tung-Ching Tsao, Cody L. Gruebele, Chang Jin Yoo
  • Patent number: 12066526
    Abstract: A method for calculating an altitude of a target through an apparatus for calculating an altitude of the target, which comprises a plurality of MIMO radar virtual antennas, may comprise: receiving electromagnetic waves reflected from the target through a pair of virtual antennas classified into an upper antenna and a lower antenna and alternately arranged in two columns linearly; obtaining range information and phase information of the target from the pair of virtual antennas by analyzing the electromagnetic waves; and calculating altitude information of the target from position information of the pair of virtual antennas, and the range information and the phase information.
    Type: Grant
    Filed: December 21, 2021
    Date of Patent: August 20, 2024
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Hyung Ju Kim, Sung Jin Yoo, Byung Jang Jeong, Woo Jin Byun, In Kui Cho
  • Publication number: 20240222630
    Abstract: Disclosed is asulfur material that can be used as an electrode material for a metal-sulfur secondary battery. The sulfur material includes a sulfur powder; and an organic molecular material chemically bonded to a surface of the sulfur powder, in which the organic molecular material includes first and second carbon atoms derived from a vinyl group and chemically bonded directly to sulfur atoms located both ends of the linear multiple sulfur material, respectively.
    Type: Application
    Filed: December 21, 2023
    Publication date: July 4, 2024
    Applicant: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Pil Jin YOO, Myeong Gyun NAM
  • Publication number: 20240197674
    Abstract: A 3-(4-(benzyloxy)phenyl)hex-4-inoic acid derivative according to the present invention promotes the expression of the myogenic factors MyoG and MyHC while inhibiting the expression of the muscle atrophy factor atrogin-1, promotes the formation of myotubes, and inhibits myocyte apoptosis, and thus can promote myogenesis and inhibit muscle atrophy.
    Type: Application
    Filed: March 10, 2022
    Publication date: June 20, 2024
    Inventors: Hye Jin Yoo, Hwan Jin Hwang