Patents by Inventor Yeong Choi

Yeong 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: 20250246606
    Abstract: A negative electrode material including an inorganic coating layer, a method of preparing the same, a negative electrode including the negative electrode material, and a lithium secondary battery including the negative electrode. The negative electrode material includes a core containing a silicon oxide particle and at least one selected from among lithium silicate, lithium disilicate, and lithium silicide, and an inorganic coating layer surrounding the core, where the inorganic coating layer includes metal phosphate, a metal phosphate derivative, or a lithium oxide-non-metal phosphate composite.
    Type: Application
    Filed: April 18, 2023
    Publication date: July 31, 2025
    Applicant: LG Chem, Ltd.
    Inventors: Kong Kyeom Kim, Won Yeong Choi, Sang Ho Ko, Hyoun Soo Uh
  • Publication number: 20250201523
    Abstract: A showerhead unit that controls plasma confinement by using an upper ground ring and a substrate treating apparatus including the same are provided. The substrate treating apparatus comprises a chamber housing providing a space in which a substrate is treated; a substrate support unit disposed inside the chamber housing, supporting the substrate; a showerhead unit disposed inside the chamber housing, providing a process gas; and a plasma generating unit generating plasma for treating the substrate by using the process gas, wherein the showerhead unit includes: a showerhead main body that includes a plurality of gas feeding holes to provide the process gas; and an upper ring assembly surrounding the showerhead main body, and the upper ring assembly includes a portion extended in a direction in which the substrate support unit is positioned.
    Type: Application
    Filed: November 6, 2024
    Publication date: June 19, 2025
    Applicant: SEMES CO., LTD.
    Inventors: Ji Hoon LEE, Ha Yeong CHOI
  • Patent number: 12314053
    Abstract: An apparatus for estimating a position of a target may include a particle generator to generate a plurality of particles on a map, a particle selector to calculate position accuracy of each of the plurality of particles, based on data sensed related to a position of a target, and select, as a reference particle, at least one of the plurality of particles, based on the position accuracy, and a position determining device to determine the position of the target, based on the reference particle.
    Type: Grant
    Filed: November 16, 2021
    Date of Patent: May 27, 2025
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Jun Yeong Choi, Ho Jun Ji, Hwan Hee Lee, Tae Young Lee
  • Patent number: 12312976
    Abstract: The present invention relates to a gas turbine blade having a shelf squealer tip, the gas turbine blade including an airfoil-shaped blade housing, and a squealer tip extending from an edge portion of a tip surface that is an end surface of the blade housing, in which the squealer tip is formed only on a part of the edge portion of the tip surface. According to the present invention, it is possible to maximize film-cooling performance on the tip surface and additionally reduce an aerodynamic loss by suppressing high-temperature main flow reattachment and swirl flow generation on the tip surface.
    Type: Grant
    Filed: May 4, 2022
    Date of Patent: May 27, 2025
    Assignees: AGENCY FOR DEFENSE DEVELOPMENT, INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY
    Inventors: Jeong-Woo Kim, Hyung-Hee Cho, Joo-Hyoung Lee, Min-Ho Bang, Jeong-Ju Kim, Seung-Yeong Choi, Tae-Hyun Kim, Hee-Seung Park
  • Publication number: 20250164278
    Abstract: Disclosed herein a method and device for providing an adaptive map for diverse autonomous navigation platforms. The method includes: generating environment information around a moving object based on perception information acquired from the moving object equipped with a sensor; selecting at least one piece of map information among multiple pieces of map information based on characteristics information of a type of the moving object, the moving object, which includes at least one of sensing performance of the moving object, processing performance of the moving object, and communication performance of the moving object, and the environment information; adjusting the map information based on situation information representing a situation around the moving object recognized from the environment information; and transmitting the adjusted map information to the moving object.
    Type: Application
    Filed: November 29, 2023
    Publication date: May 22, 2025
    Applicant: KAKAO MOBILITY CORP.
    Inventors: Seung Hwan HONG, Yun Yeong CHOI
  • Publication number: 20250143171
    Abstract: The present invention relates to an organic compound represented by the following Formula 1, and a high-efficiency and long-lifetime organic light emitting device enabling significantly improved low voltage driving, and having long lifetime, excellent luminous efficiency and the like by employing the same as a light emitting layer host material in the device.
    Type: Application
    Filed: October 28, 2024
    Publication date: May 1, 2025
    Inventors: Yeon-jae CHOI, Si-in KIM, Tae-young KIM, Kyeong-hyeon KIM, Joon-ho KIM, Hyuk-woo JANG, Do-yeong CHOI, Seo-youn PARK, Kyeong-wan KIM, Se-jin LEE
  • Publication number: 20250143181
    Abstract: The present invention relates to an organic compound represented by the following Formula 1, and a high-efficiency and long-lifetime organic light emitting device enabling significantly improved low voltage driving, and having long lifetime, excellent luminous efficiency and the like by employing the same as a light emitting layer host material in the device.
    Type: Application
    Filed: October 28, 2024
    Publication date: May 1, 2025
    Inventors: Hyuk-woo JANG, Si-in KIM, Tae-young KIM, Kyeong-hyeon KIM, Joon-ho KIM, Yeon-jae CHOI, Do-yeong CHOI, Seo-youn PARK, Kyeong-wan KIM, Se-jin LEE
  • Publication number: 20250114023
    Abstract: Provided is a method for producing a biosignal measurement electrode including: preparing a conductive polymer including a coil-type chain structure having a coil shape; providing a sugar alcohol and a water-soluble polymer to the conductive polymer to produce an electrode source including an expanded chain structure in which the coil-type chain structure is expanded and linearly arranged; forming a coating layer by providing the electrode source on a substrate; and producing the biosignal measurement electrode by annealing the coating layer.
    Type: Application
    Filed: October 1, 2024
    Publication date: April 10, 2025
    Applicant: Research & Business Foundation Sungkyunkwan University
    Inventors: Tae il KIM, Joo Hwan SHIN, Ji Yeong CHOI
  • Publication number: 20250074928
    Abstract: The present invention relates to an organic compound represented by the following [Formula 1], and a high-efficiency and long-lifetime organic light emitting device enabling significantly improved low voltage driving and having long lifetime, excellent luminous efficiency and the like by employing the same as a light emitting layer host material in the device.
    Type: Application
    Filed: August 21, 2024
    Publication date: March 6, 2025
    Applicant: SFC CO., LTD.
    Inventors: Kyeong-hyeon KIM, Si-in KIM, Hyuk-woo JANG, Do-yeong CHOI, Seo-youn PARK, Yeon-jae CHOI, Kyeong-wan KIM, Se-jin LEE
  • Publication number: 20240407254
    Abstract: Disclosed is an organic compound represented by Formula 1: Also disclosed is an organic light emitting device including a light emitting layer employing the organic compound as a host. The use of the organic compound enables low voltage driving of the organic light emitting device and ensures significantly long lifetime and improved luminous efficiency of the device.
    Type: Application
    Filed: May 16, 2024
    Publication date: December 5, 2024
    Applicant: SFC CO., LTD.
    Inventors: Ji-yung KIM, Si-in KIM, Kyeong-hyeon KIM, Hyuk-woo JANG, Do-yeong CHOI, Seo-youn PARK, Yeon-jae CHOI, Kyeong-wan KIM, Se-jin LEE
  • Publication number: 20240387829
    Abstract: In a method for preparing a cathode of a secondary battery, a method for preparing a purified N-methyl pyrrolidinone (NMP), and a method for purifying a waste NMP, an inhibitor is added to prevent NMP from being decomposed to produce formaldehyde during the process. 1. The inhibitor may be a phenol-based antioxidant and/or an amine-based light stabilizer.
    Type: Application
    Filed: May 16, 2024
    Publication date: November 21, 2024
    Inventors: JAE WON SHIM, SUNG WON SHIM, BYUNG KI SON, HWAN CHOI, YOUN SOO SHIN, TAE GI CHOI, HWA YEONG CHOI, YEONG SU CHOO
  • Publication number: 20240389457
    Abstract: Organic compounds represented by Formulas 1 and 2 are disclosed: Also disclosed is an organic light emitting device including a light emitting layer employing the organic compounds as host materials. The use of the organic compounds enables low voltage driving of the organic light emitting device and ensures significantly long lifetime and improved luminous efficiency of the device.
    Type: Application
    Filed: May 16, 2024
    Publication date: November 21, 2024
    Applicant: SFC CO., LTD.
    Inventors: Ji-yung KIM, Si-in KIM, Kyeong-hyeon KIM, Hyuk-woo JANG, Do-yeong CHOI, Seo-youn PARK, Yeon-jae CHOI, Kyeong-wan KIM, Se-jin LEE
  • Publication number: 20240338955
    Abstract: The present invention discloses an analysis apparatus (100) including: an information receiving unit (110) configured to receive a tissue image of a tissue of interest provided with an exploring material with which a labeling material for analysis is bonded and transcriptome information sharing spatial information of the tissue of interest, a spatial mapping unit (120) configured to generate spatial mapping information by spatially mapping the tissue image by the labeling material of the exploring material with the spatially reserved transcriptome information, a transcriptome information extraction unit (150) configured to extract the transcriptome information in the tissue relating to distribution of the exploring material from the spatial mapping information, and a molecular marker analysis unit (160) configured to analyze a molecular marker relating to the distribution of the exploring material in the tissue of interest through the extraction.
    Type: Application
    Filed: May 23, 2022
    Publication date: October 10, 2024
    Inventors: Jin Yeong CHOI, Jeongbin PARK
  • Patent number: 12050471
    Abstract: A map generating system for autonomous movement of a robot includes a three-dimensional (3D) point cloud map input device, a 3D point cloud map regeneration device that extracts only 3D point cloud data corresponding to an arbitrary reference height from the 3D point cloud map to regenerate the 3D point cloud map, an unoccupied area generation device that extracts ground point cloud data from the 3D point cloud map to set an unoccupied area into which the robot is able to move, an occupied area generation device that extracts obstacle point cloud data from the 3D point cloud map to set an occupied area into which the robot is unable to move, and a two-dimensional (2D) map generation device that adds the unoccupied area and the occupied area to an area on the 3D point cloud map to generate a 2D map.
    Type: Grant
    Filed: November 4, 2021
    Date of Patent: July 30, 2024
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Tae Young Lee, Jun Yeong Choi, Ho Jun Ji
  • Publication number: 20240229652
    Abstract: The present invention relates to a gas turbine blade having a shelf squealer tip, the gas turbine blade including an airfoil-shaped blade housing, and a squealer tip extending from an edge portion of a tip surface that is an end surface of the blade housing, in which the squealer tip is formed only on a part of the edge portion of the tip surface. According to the present invention, it is possible to maximize film-cooling performance on the tip surface and additionally reduce an aerodynamic loss by suppressing high-temperature main flow reattachment and swirl flow generation on the tip surface.
    Type: Application
    Filed: May 4, 2022
    Publication date: July 11, 2024
    Inventors: Jeong-Woo KIM, Hyung-Hee CHO, Joo-Hyoung LEE, Min-Ho BANG, Jeong-Ju KIM, Seung-Yeong CHOI, Tae-Hyun KIM, Hee-Seung PARK
  • Publication number: 20240111189
    Abstract: A display apparatus includes a liquid crystal panel disposed on a back-light unit; and a viewing angle control unit disposed between the back-light unit and the liquid crystal panel, wherein the viewing angle control unit includes light-blocking patterns having a light-blocking material and variable patterns disposed between a first control electrode and a second control electrode, wherein the variable patterns are extended in a direction perpendicular to the light-blocking patterns, and wherein transmittance of each variable pattern is changed according to a voltage applied to the first control electrode and the second control electrode, thereby preventing a distraction of people around a user by selectively sharing a realized image.
    Type: Application
    Filed: December 15, 2023
    Publication date: April 4, 2024
    Applicant: LG Display Co., Ltd.
    Inventors: Jae Yeong CHOI, Joon Ho LEE, Dae Yun IM
  • Patent number: 11899312
    Abstract: A display apparatus includes a liquid crystal panel disposed on a back-light unit; and a viewing angle control unit disposed between the back-light unit and the liquid crystal panel, wherein the viewing angle control unit includes light-blocking patterns having a light-blocking material and variable patterns disposed between a first control electrode and a second control electrode, wherein the variable patterns are extended in a direction perpendicular to the light-blocking patterns, and wherein transmittance of each variable pattern is changed according to a voltage applied to the first control electrode and the second control electrode, thereby preventing a distraction of people around a user by selectively sharing a realized image.
    Type: Grant
    Filed: December 13, 2021
    Date of Patent: February 13, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Jae Yeong Choi, Joon Ho Lee, Dae Yun Im
  • Patent number: 11731675
    Abstract: A system for exclusive track resource sharing is provided. Some embodiments provide an exclusive track resource sharing system including onboard control units and a resource manager. Onboard control unit is provided in each of trains and is configured to communicate with another onboard control unit in another train. The resource manager is configured to record ownership status information of track resources of the plurality of trains, to provide the ownership status information of the track resources to the onboard control unit, and to generate and deliver a resource entitlement or resource authority to the onboard control unit. The resource authority is configured to be owned by a single onboard control unit. The onboard control unit possessing the resource authority is configured to seize or release the track resources corresponding to the resource authority and to control the track resources corresponding to the resource authority.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: August 22, 2023
    Assignee: KOREA RAILROAD RESEARCH INSTITUTE
    Inventors: Seh Chan Oh, Jong Hyen Baek, Hyeon Yeong Choi, Byung Hun Lee
  • Publication number: 20230192609
    Abstract: Provided is a method for purifying waste N-methyl-2-pyrrolidone, the method comprising the steps of: reacting the waste N-methyl-2-pyrrolidone containing an amine compound with an acid anhydride; converting the amine compound into an amide compound; and removing the amide compound by distillation, thereby manufacturing high-purity N-methyl-2-pyrrolidone that can be reused.
    Type: Application
    Filed: December 20, 2022
    Publication date: June 22, 2023
    Applicant: JAEWON INDUSTRIAL CO., LTD
    Inventors: Sung Won SHIM, Byung Ki SON, Hwan CHOI, Youn Soo SHIN, Hwa Yeong CHOI, Tae Gi CHOI, Yeong Su CHOO
  • Publication number: 20230185307
    Abstract: An embodiment device for planning a path of a robot includes a camera configured to capture an image in a moving direction of the robot and a controller configured to detect a moving obstacle in the image in the moving direction of the robot, to calculate a speed and a moving direction of the moving obstacle based on a change in a location of the moving obstacle, and to set a region of the moving obstacle based on the speed and the moving direction of the moving obstacle, the region being in a form of an ellipse.
    Type: Application
    Filed: July 12, 2022
    Publication date: June 15, 2023
    Inventors: Jun Yeong Choi, Il Yong Yoon