Patents by Inventor Ji-hwan Choi

Ji-hwan 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: 20220207100
    Abstract: Disclosed are a method and an apparatus for managing a user profile. A user profile management method performed by a server according to an example embodiment includes creating a plurality of profiles corresponding to a user account, receiving a view request for a profile of the other user account in a predetermined relationship with the user account from a user terminal logged in with the user account, providing a UI of a profile of the other user account including an interfacing object regarding the profile of the user account to the user account, receiving an input for selecting a profile to be displayed on the other user terminal logged in the other user account, among a plurality of profiles corresponding to the user account through the interfacing object, and matching the other user account with the selected profile.
    Type: Application
    Filed: December 28, 2021
    Publication date: June 30, 2022
    Inventors: So Yon SUNG, Ji Sun LEE, Bum Sun RYU, Jee Won YOU, Ki Byung CHAE, Uh Chul KIM, Do Hyun YOUN, Young Min PARK, Eun Ho SON, Min Jung KIM, Jin Hwan LEE, Jun Young KIM, Hyun Ok CHOI, Hye Sun KIM, Tae Joong YOON, Ha Na JUNG, Dong Keun LEE, Do Yi KIM, Min Jeong YANG, Hong Chan YUN
  • Publication number: 20220194475
    Abstract: An impact beam having a bent structure is provided. The impact beam is mounted at a lateral portion of each door in a vertical direction of a vehicle body and supports the door in the vertical direction. An upper end of the impact beam extends to support a roof panel and a lower end of the impact beam extends to a lower roller mounting portion. The impact beam is bent in an L shape and a T shape based on a curvature of the door.
    Type: Application
    Filed: March 10, 2022
    Publication date: June 23, 2022
    Inventors: Je-Won Choi, Yeung-Mo Choi, Jeong-Real Kim, Kyoung-Su Jin, Baek-Gu Kang, Ji-Hwan Kim
  • Publication number: 20220199750
    Abstract: A display device having a display area including a plurality of pixels arranged along a first direction and a second direction, and a non-display area located around the display area, the non-display area including a first peripheral area surrounding the display area, a second peripheral area located at a lower side of the first peripheral area, and a bending area located between the first and second peripheral areas, the display device comprises a base substrate; a multiplexer circuit unit in the second peripheral area on the base substrate, the multiplexer circuit unit being spaced apart from the display area with the bending area interposed therebetween; spider lines connected to the multiplexer circuit unit and the plurality of pixels; data lines connected to the pixel disposed in the display area on the base substrate and extending along the second direction; and connection lines connecting the data line to the spider line.
    Type: Application
    Filed: December 22, 2021
    Publication date: June 23, 2022
    Inventors: Seung Hwan Cho, Won Suk Choi, Ji Ryun Park, Seok Je Seong, Hyeon Woo Shin, Ji Seon Lee
  • Publication number: 20220190430
    Abstract: A battery pack includes: a battery module assembly including a plurality of battery modules; and a case in which the battery module assembly is seated, wherein each battery module includes a laminated structure including a plurality of laminated battery cells and a cover disposed on a first side or a second side of the laminated structure and configured to cover the laminated structure, the cover includes a cover surface facing the laminated structure, and a first fastening part and a second fastening part, each the first and second fastening parts projecting in opposite directions and formed to project further than a side surface of the laminated structure from the cover surface in a direction in which the battery cells are laminated.
    Type: Application
    Filed: August 20, 2021
    Publication date: June 16, 2022
    Applicants: HYUNDAI MOTOR COMPANY, Kia Corporation
    Inventors: Yu Ri OH, Yong Hwan CHOI, Gyung Hoon SHIN, Hae Kyu LIM, Ji Woong JUNG
  • Publication number: 20220190428
    Abstract: Disclosed is a method for manufacturing a battery pack which has an upper plate configured to have a seating surface, on which battery modules are seated, and a plurality of members configured to separate the seating surface of the upper plate into a plurality of regions. The method includes calculating height tolerances of the seating surface in the respective regions, determining application amounts of the gap filler in the respective regions based on the calculated height tolerances in the respective regions, and applying the determined application amounts of the gap filler in the respective regions.
    Type: Application
    Filed: August 11, 2021
    Publication date: June 16, 2022
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventors: Hae Kyu LIM, Jeong Hun SEO, Yun Ho KIM, Ji Woong JUNG, Tae Hyuck KIM, Gyung Hoon SHIN, Jong Wook LEE, In Gook SON, Wu Hyun KIM, Jae Hyeon JU, Kang Won LEE, Yong Hwan CHOI, Yu Ri OH, Hwi MOON, Young O LEE, Jae Won LEE, Jae Ho BAE
  • Publication number: 20220189383
    Abstract: An embodiment relates to a technique for driving an LED display. In a method of controlling grayscale of pixels dividedly by N subframes (N is a natural number of 2 or greater), a pulse width modulation (PWM) control value of each subframe may be calculated by a precalculator disposed at a front end of latches, thereby simplifying a circuit.
    Type: Application
    Filed: December 8, 2021
    Publication date: June 16, 2022
    Inventors: Jin Ho Choi, Jang Su Kim, Ji Hwan Kim
  • Publication number: 20220167000
    Abstract: Disclosed herein are a method, apparatus, system, and computer-readable recording medium for image compression. An encoding apparatus performs preprocessing of feature map information, frame packing, frame classification, and encoding. A decoding apparatus performs decoding, frame depacking, and postprocessing in order to reconstruct feature map information. By encoding the feature map information, inter-prediction and intra-block prediction for a frame are performed. The encoding apparatus provides the decoding apparatus with a feature map information bitstream for reconstructing the feature map information along with an image information bitstream.
    Type: Application
    Filed: November 26, 2021
    Publication date: May 26, 2022
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Hyoung-Jin KWON, Ji-Hoon DO, Dong-Hyun KIM, Youn-Hee KIM, Jong-Ho KIM, Joo-Young LEE, Se-Yoon JEONG, Jin-Soo CHOI, Tae-Jin LEE, Jee-Hoon KIM, Dong-Gyu SIM, Seoung-Jun OH, Min-Hun LEE, Yun-Gu LEE, Han-Sol CHOI, Kwang-Hwan KIM
  • Patent number: 11342543
    Abstract: A method for activating a battery cell. The battery cell includes a positive electrode coated with a nickel cobalt manganese (NCM) positive electrode material, into which lithium nickel oxide (LNO) has been added or mixed. The method includes a step of charging the battery cell; and a step of discharging the battery cell, when, in the step of charging the battery cell, the battery cell is charged under a charging condition of C-rate of 0.1 C to 0.5 C in a state of being heated at a temperature of 45° C. to 60° C. When the activation process is performed according to the present invention having the above-described configuration, the pressing/heating conditions for suppressing generation of a gas may be provided to prevent swelling, battery deformation, and performance deterioration due to the generation of the gas from occurring.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: May 24, 2022
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Jong Hwan Choi, Eun Ju Lee, Ji Eun Lee, Ye Jin Nam
  • Patent number: 11342401
    Abstract: A display device includes: a base substrate having a display region including a first region and a second region, and a non-display region; a first semiconductor layer including polysilicon at the second region; a first conductive layer on a first insulating layer, and including a bottom gate electrode at the first region and a second-first gate electrode at the second region; a second semiconductor layer including an oxide on a second insulating layer at the first region; a second conductive layer on a third insulating layer, and including a top gate electrode at the first region and a second-second gate electrode at the second region; and a third conductive layer on a fourth insulating layer, and including a first source electrode and a first drain electrode connected to the second semiconductor layer, and a second source electrode and a second drain electrode connected to the first semiconductor layer.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: May 24, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ji Eun Choi, Deok Hoi Kim, Jeong Hwan Kim, Jong Baek Seon, Jun Cheol Shin, Jae Hak Lee
  • Publication number: 20220144060
    Abstract: A structure for fastening a battery to a vehicle includes: a carrier part including a pair of first members that is disposed at a lower portion of the vehicle in a longitudinal direction of the vehicle and bonded to both sides of a vehicle body, respectively, and a plurality of second members the pair of first members in contact with the pair of first members; and a battery having a case that houses a plurality of battery cells, in which a part of the case is connected to the first member, and the other part of the case is connected to the second member.
    Type: Application
    Filed: July 22, 2021
    Publication date: May 12, 2022
    Inventors: Gyung Hoon SHIN, Yong Hwan CHOI, Yu Ri OH, Tae Hyuck KIM, Hae Kyu LIM, Ji Woong JUNG
  • Publication number: 20200395603
    Abstract: A secondary battery comprising a positive electrode current collector, a first positive electrode mixture layer disposed on the positive electrode current collector and including a first positive electrode active material and a binder, and a second positive electrode mixture layer disposed on the first positive electrode mixture layer and including a second positive electrode active material and a binder. A nickel content of the second positive electrode active material is 80% by weight or less of a nickel content of the first positive electrode active material. By providing a secondary battery including a positive electrode of a multi-layer structure that includes positive electrode active materials having different contents of nickel, a secondary battery capable of improving high-temperature characteristics while maintaining energy density may be provided.
    Type: Application
    Filed: April 7, 2020
    Publication date: December 17, 2020
    Inventors: Jae Yun MIN, Jeong A KIM, Sung Jun PARK, Da Bin CHUNG, Jae Kyu JIN, Ji Hwan CHOI
  • Patent number: 10858047
    Abstract: Disclosed are a partition panel for vehicles and a method of manufacturing the same. The method includes mounting a first prepreg formed to have a shape corresponding to a molding groove on a lower die provided with the molding groove. The molding groove is inclined upwards from the center of a lower portion of the lower die to opposite ends of the lower die. A second prepreg having a sheet type is mounted on the lower die so as to cover the first prepreg. The first prepreg and the second prepreg are integrally molded by placing an upper die on the lower die.
    Type: Grant
    Filed: January 15, 2019
    Date of Patent: December 8, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Hanwha Solutions Corporation
    Inventors: Min Soo Kim, Wook Hyun Han, Chang Dong Kim, Jun Hyoung Kim, Jun Young Kim, Sang Sun Park, Joung Myung Lim, Ji Hwan Choi, Hee Young Ko
  • Publication number: 20200218415
    Abstract: Provided is an olfactory data sharing terminal including a receiver configured to receive olfactory data obtained by sensing an odor of an object through an olfactory sensor; a preference determiner configured to determine whether a user prefers the received olfactory data, based on a user olfactory function fuser(x); and a display displaying a user preference for the received olfactory data.
    Type: Application
    Filed: January 7, 2020
    Publication date: July 9, 2020
    Applicant: Daegu Gyeongbuk Institute of Science and Technology
    Inventors: Jae Eun JANG, Hyuk Jun KWON, Che II MOON, Kyung In JANG, Ji Hwan CHOI, Han Kyoung CHOE, Su Jin HEO
  • Patent number: 10428096
    Abstract: Provided are a novel polyketone polymerization catalyst and a method of preparing a ligand, which can reduce production costs and can enable commercial mass synthesis by using ((2,2-dimethyl-1,3-dioxane-5,5-diyl)bis(methylene))bis(bis(2-methoxyphenyl)phosphine) as a ligand constituting the polykeytone polymerization catalyst, the ligand having a simple structure and a small molecular weight while having high activity.
    Type: Grant
    Filed: July 16, 2014
    Date of Patent: October 1, 2019
    Assignees: HYOSUNG CHEMICAL CORPORATION, ST PHARM CO., LTD.
    Inventors: Jae Yoon Shim, Sun Kue Kim, Hae Souk Cho, Ji Hwan Choi, Geun Jho Lim, Sun Ki Chang, Min Kyu Kim, In Hyeok Baek
  • Publication number: 20190144045
    Abstract: Disclosed are a partition panel for vehicles and a method of manufacturing the same. The method includes mounting a first prepreg formed to have a shape corresponding to a molding groove on a lower die provided with the molding groove. The molding groove is inclined upwards from the center of a lower portion of the lower die to opposite ends of the lower die. A second prepreg having a sheet type is mounted on the lower die so as to cover the first prepreg. The first prepreg and the second prepreg are integrally molded by placing an upper die on the lower die.
    Type: Application
    Filed: January 15, 2019
    Publication date: May 16, 2019
    Inventors: Min Soo KIM, Wook Hyun HAN, Chang Dong KIM, Jun Hyoung KIM, Jun Young KIM, Sang Sun PARK, Joung Myung LIM, Ji Hwan CHOI, Hee Young KO
  • Patent number: 10214245
    Abstract: Disclosed are a partition panel for vehicles and a method of manufacturing the same. The partition panel for vehicles includes a panel part formed of a composite material to divide a trunk and the inside of a vehicle from each other and a reinforcement part formed of a composite material, inclined upwards from the center of the lower portion of the panel part to both ends of the panel part, and connected integrally to the panel part.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: February 26, 2019
    Assignees: Hyundai Motor Company, Hanwha Advanced Materials Corporation
    Inventors: Min Soo Kim, Wook Hyun Han, Chang Dong Kim, Jun Hyoung Kim, Jun Young Kim, Sang Sun Park, Joung Myung Lim, Ji Hwan Choi, Hee Young Ko
  • Publication number: 20180111647
    Abstract: Disclosed are a partition panel for vehicles and a method of manufacturing the same. The partition panel for vehicles includes a panel part formed of a composite material to divide a trunk and the inside of a vehicle from each other and a reinforcement part formed of a composite material, inclined upwards from the center of the lower portion of the panel part to both ends of the panel part, and connected integrally to the panel part.
    Type: Application
    Filed: December 6, 2016
    Publication date: April 26, 2018
    Inventors: Min Soo Kim, Wook Hyun Han, Chang Dong Kim, Jun Hyoung Kim, Jun Young Kim, Sang Sun Park, Joung Myung Lim, Ji Hwan Choi, Hee Young Ko
  • Patent number: 9630579
    Abstract: A bumper back-beam for a vehicle is provided. The bumper back beam includes a glass fiber mat reinforced plastic composite and a carbon fiber reinforced plastic composite disposed within the glass fiber reinforced plastic composite. The glass fiber mat reinforced plastic composite includes polypropylene at about 45 to 60 wt. %, glass fiber at about 35 to 45 wt. %, a crosslink agent at about 0.1 to 10 wt. %, peroxide at 0.1 to 4 wt. %, and an antioxidant at about 0.1 to 4 wt. %. The carbon fiber reinforced plastic composite includes a thermoplastic resin at about 40 to 60 wt. % and a carbon reinforced fiber at about 40 to 60 wt. % arranged in a predetermined direction.
    Type: Grant
    Filed: June 9, 2015
    Date of Patent: April 25, 2017
    Assignees: Hyundai Motor Company, Hanwha Advanced Materials Corporation
    Inventors: Sang Sun Park, Sung Ki Shin, Kieyoun Jeong, Seok Hwan Kim, Do Wan Lim, Joung Myung Lim, Ji Hwan Choi
  • Publication number: 20160333036
    Abstract: Provided are a novel polyketone polymerization catalyst and a method of preparing a ligand, which can reduce production costs and can enable commercial mass synthesis by using ((2,2-dimethyl-1,3-dioxane-5,5-diyl)bis(methylene))bis(bis(2-methoxyphenyl)phosphine) as a ligand constituting the polykeytone polymerization catalyst, the ligand having a simple structure and a small molecular weight while having high activity.
    Type: Application
    Filed: July 16, 2014
    Publication date: November 17, 2016
    Inventors: Jae Yoon SHIM, Sun Kue KIM, Hae Souk CHO, Ji Hwan CHOI, Geun Jho LIM, Sun Ki CHANG, Min Kyu KIM, In Hyeok BAEK
  • Publication number: 20160272136
    Abstract: A bumper back-beam for a vehicle is provided. The bumper back beam includes a glass fiber mat reinforced plastic composite and a carbon fiber reinforced plastic composite disposed within the glass fiber reinforced plastic composite. The glass fiber mat reinforced plastic composite includes polypropylene at about 45 to 60 wt. %, glass fiber at about 35 to 45 wt. %, a crosslink agent at about 0.1 to 10 wt. %, peroxide at 0.1 to 4 wt. %, and an antioxidant at about 0.1 to 4 wt. %. The carbon fiber reinforced plastic composite includes a thermoplastic resin at about 40 to 60 wt. % and a carbon reinforced fiber at about 40 to 60 wt. % arranged in a predetermined direction.
    Type: Application
    Filed: June 9, 2015
    Publication date: September 22, 2016
    Inventors: Sang Sun Park, Sung Ki Shin, Kieyoun Jeong, Seok Hwan Kim, Do Wan Lim, Joung Myung Lim, Ji Hwan Choi