Patents by Inventor Yong-Seok Choi

Yong-Seok 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: 20210013502
    Abstract: A composite negative electrode for an all-solid-state battery is provided. The composite negative electrode includes a negative electrode current collector, and a negative electrode active material layer formed on the negative electrode current collector, wherein the negative electrode active material layer includes unit cells arranged with a gap therebetween, and wherein the unit cells include a solid electrolyte and a carbon material dispersed in the solid electrolyte.
    Type: Application
    Filed: June 30, 2020
    Publication date: January 14, 2021
    Inventors: Jae Min Lim, Yong Seok Choi
  • Publication number: 20210013466
    Abstract: A battery pack includes a base plate forming a bottom surface; a main frame combined to the base plate and extending in a height direction to form a wall structure for supporting both side portions of the plurality of battery modules; and a top plate combined to an upper portion of the main frame to form a ceiling, wherein at least one of the top plate and the base plate is provided in a plate body shape including a bead.
    Type: Application
    Filed: December 23, 2019
    Publication date: January 14, 2021
    Applicant: LG CHEM, LTD.
    Inventors: Seung-Yoon LEE, Yong-Il KIM, Yong-Seok CHOI
  • Publication number: 20210008521
    Abstract: Provided is a method of preparing a superabsorbent polymer. More particularly, provided is a method of preparing a superabsorbent polymer, the method capable of preparing the superabsorbent polymer maintaining excellent basic absorption performances such as centrifugal retention capacity, absorbency under load, etc. while also exhibiting an improved absorption rate.
    Type: Application
    Filed: November 7, 2019
    Publication date: January 14, 2021
    Applicant: LG Chem, Ltd.
    Inventors: Yong Seok Choi, Yeon Woo Hong, Eunji Shin, Taebin Ahn
  • Patent number: 10884065
    Abstract: Provided are apparatus and method of testing electrochemical performance of a battery cell in a nondestructive manner The apparatus according to an embodiment of the present disclosure includes: a memory configured to store first profile data, second profile data, a first positive electrode upper limit, a first positive electrode lower limit, a first negative electrode upper limit, and a first negative electrode lower limit that are determined in advance through a preliminary experiment with respect to each of a plurality of reference cells; a sensing unit configured to measure an open-circuit voltage of a test cell according to a variation in a state of charge (SOC) of the test cell; and a controller electrically connected to the memory and the sensing unit. The controller is configured to test performance of the test cell in a nondestructive manner based on data regarding the reference cells and data measured by the sensing unit stored in the memory.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: January 5, 2021
    Inventors: Jin-Hyung Lim, Du-Seong Yoon, Won-Tae Joe, Yong-Seok Choi
  • Publication number: 20200408718
    Abstract: Provided is an apparatus for diagnosing a crack in a battery pack, and a battery pack and a vehicle including the same. The apparatus includes a sensing unit configured to generate a vibration signal indicating time-dependent changes in vibration of the battery pack and a processor. The processor generates spectral density data using the vibration signal. The processor detects a plurality of peaks from the spectral density data, and diagnoses whether the battery pack is cracked or not based on the plurality of peaks.
    Type: Application
    Filed: March 6, 2019
    Publication date: December 31, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Seung-Ho Song, Jeong-In Pak, Myung-Su Hong, Yong-Seok Choi
  • Publication number: 20200398251
    Abstract: Provided are a superabsorbent polymer and a preparation method thereof. More particularly, provided are a superabsorbent polymer including a fine powder reassembly, wherein the superabsorbent polymer exhibits excellent absorption performances and absorption rate, and does not cause deterioration of physical properties such as water retention capacity (CRC) or absorbency under pressure (AUP), and a preparation method thereof.
    Type: Application
    Filed: November 27, 2019
    Publication date: December 24, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Yong Seok Choi, Yeon Woo Hong, Eunji Shin, Taebin Ahn
  • Publication number: 20200373624
    Abstract: In manufacturing an all-solid-state battery, a cell assembly is pressurized rather than pressurizing each cell unit, and the structure of the battery is simplified by using a reduced number of first electrode current collectors and second electrode current collectors. In particular, the all-solid-state battery includes: first units each including a first electrode current collector and a first electrode active material layer provided on each of opposite surfaces of the first electrode current collector; second units each including a second electrode current collector and a second electrode active material layer provided on each of opposite surfaces of the second electrode current collector; and a solid electrolyte layer disposed between a corresponding first unit and a corresponding second unit.
    Type: Application
    Filed: October 11, 2019
    Publication date: November 26, 2020
    Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Yong Seok CHOI, Jae Min LIM, Soon Chul BYUN, In Woo SONG, Yun Sung KIM
  • Patent number: 10845181
    Abstract: Disclosed is an apparatus capable of effectively and accurately predicting a deformation characteristic in relation to swelling of a secondary battery. The secondary battery evaluation apparatus includes a fixed jig configured to hold a first secondary battery and restrict swelling of the held first secondary battery, the fixed jig measuring a change in a first reaction force of the first secondary battery according to charging and discharging cycles; a variable jig configured to hold a second secondary battery and allow swelling of the held second secondary battery, the variable jig measuring a second reaction force and a first thickness change amount of the second secondary battery according to charging and discharging cycles; and a deriving unit configured to derive a relationship between the first reaction force measured by the fixed jig and the second reaction force and the first thickness change amount measured by the variable jig.
    Type: Grant
    Filed: January 23, 2018
    Date of Patent: November 24, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Dong-Yeon Kim, Jin-Hak Kong, Yong-Seok Choi, Sung-Won Seo, Yoon-Koo Lee, Dal-Mo Kang, Jeong-O Mun
  • Patent number: 10831676
    Abstract: Disclosed herein are an apparatus and method for interfacing with common memory. The apparatus for interfacing with common memory includes a computer-input/output (I/O)-interface-protocol-processing unit for receiving a packet for accessing common memory from a computer; a direct memory access unit for transforming the packet into an instruction for performing any one of reading from and writing to the common memory; and a common memory interface unit for transmitting the instruction to the common memory and receiving information about whether execution of the instruction is completed from the common memory.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: November 10, 2020
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Yong-Seok Choi, Shin-Young Ahn, Eun-Ji Lim, Young-Choon Woo, Wan Choi
  • Publication number: 20200350611
    Abstract: Disclosed are an all-solid-state battery having high energy density and a method for manufacturing the same. One battery structure is pressed instead of pressing each cell unit, an amount of first or second electrode current collectors consumed is reduced, and insulating members are used, thereby simplifying a manufacturing process of the all-solid-state battery and allowing the all-solid-state battery to have high energy density and a stable structure.
    Type: Application
    Filed: December 5, 2019
    Publication date: November 5, 2020
    Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Yong Seok CHOI, Hong Seok MIN, Soon Chul BYUN, Yun Sung KIM, Yong Gu KIM, Jae Min LIM
  • Patent number: 10810919
    Abstract: An image shift control method including generating image position information by using sample data of first image data; and determining a movement direction and a movement amount of an image by using the image position information.
    Type: Grant
    Filed: August 16, 2019
    Date of Patent: October 20, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Byung Ki Chun, Hyun Seuk Yoo, Jun Gyu Lee, Won Woo Jang, Yong Seok Choi
  • Patent number: 10804510
    Abstract: Disclosed is a battery pack, which may effectively prevent a bending phenomenon caused by a load while ensuring excellent assembling and compatibility and light weight, and a vehicle including the battery pack. The battery pack includes: a plurality of battery modules including at least one secondary battery accommodated in a module case and a side surface coupling unit provided at an outer side portion of the module case, the plurality of battery modules being arranged in a lateral direction so that side surfaces thereof face each other with intervals therebetween; and a fixing member having an interposing portion interposed between side surfaces of two adjacent battery modules and coupled to the side surface coupling units of the two adjacent battery modules so that two or more battery modules are coupled and fixed.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: October 13, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Han-Sol Lee, Jin-Hak Kong, Su-Hang Lee, Kyu-Hyun Choi, Yong-Seok Choi
  • Patent number: 10777860
    Abstract: A battery module assembly includes a battery module and a cooling plate attached to the battery module, wherein the battery module has a first paste injection hole for injecting a thermal paste into the battery module and a first paste discharge hole for discharging the thermal paste out of the battery module, and wherein the cooling plate has a second paste injection hole formed at a location corresponding to the first paste injection hole and a second paste discharge hole for allowing the thermal paste discharged out of the battery module through the first paste discharge hole to be discharged out of the battery module assembly.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: September 15, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Woo-Sik Jo, Jin-Moo Nam, Gyu-Jong Bae, Hyun-Seok Shim, Yong-Seok Choi
  • Publication number: 20200287182
    Abstract: Disclosed is a battery pack, which includes a plurality of battery modules, each having at least one battery cell, and a battery tray to which the plurality of battery modules are mounted. The plurality of battery modules are coupled to each other by sliding and make surface contact with each other on at least one side surface thereof.
    Type: Application
    Filed: August 30, 2018
    Publication date: September 10, 2020
    Inventors: Jin-Hak Kong, Dong-Yeon Kim, Yong-Seok Choi
  • Publication number: 20200266398
    Abstract: A battery module for improving heat balance of a cell assembly provided in the battery module includes a cell assembly having at least three battery cells stacked along a stacking axis such that at least one battery cell located at an interior position within the cell assembly along the stacking axis has a greater thickness along the stacking axis than a battery cell located at an outer side of the cell assembly. A module housing includes at least one sidewall and is configured to accommodate the cell assembly in an inner space defined by the sidewall.
    Type: Application
    Filed: February 19, 2019
    Publication date: August 20, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Jee-Soon Choi, Jin-Hak Kong, Yong-Seok Choi
  • Patent number: 10740865
    Abstract: A convolution neural network (CNN)-based image processing method and apparatus are provided. The CNN-based image processing method includes identifying whether values of pixels of each of feature maps having a plurality of channels at a first layer are zero, and storing information regarding a result of identifying whether the values of the pixels are zero; writing image feature information of the feature maps at the first layer to an external memory; reading information regarding pixels having values which are not zero among the written image feature information from the external memory based on the information regarding the result of identifying whether the values of the pixels are zero; and performing a feature map operation at a second layer using the read image feature information of the feature maps.
    Type: Grant
    Filed: April 19, 2018
    Date of Patent: August 11, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Won-jae Lee, Yong-seok Choi, Min-soo Kim
  • Publication number: 20200247960
    Abstract: A method for preparing a superabsorbent polymer, and more particularly, a method for preparing a superabsorbent polymer in which it is possible to stably operate a process for preparing a fine powder reassembly while maintaining assembly strength of the fine powder reassembly, wherein a refined ratio is reducible, and an initial absorption speed of the superabsorbent polymer is improved, by adjusting a stirring speed and divisionally adding water to a fine powder in a process for the preparation of the fine powder reassembly, is provided.
    Type: Application
    Filed: January 25, 2019
    Publication date: August 6, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Sung Soo Park, Gicheul Kim, Jeong Kug Cho, Ki Hyun Kim, Yong Seok Choi
  • Patent number: 10713993
    Abstract: It is an aspect of the present disclosure to provide an image processing apparatus, a display apparatus and a method of controlling of the display apparatus capable of preventing a rapid decrease in the image quality of image data. In accordance with an example aspect of the present disclosure, a display apparatus comprises: a plurality of image processing modules, each image processing module configured to perform an image processing process; a controller configured to output image data processed by any one image processing module of the plurality of image processing modules, based on state information of the plurality of image processing modules; and a display configured to display the output image data.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: July 14, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yong Seok Choi, Do-Hyung Kim, Joon Ho Song, Sang Jo Lee, Won Chang Lee
  • Patent number: 10702626
    Abstract: The present invention relates to a method for preparing superabsorbent polymer that has antibacterial activity, in which the basic properties of superabsorbent polymer are maintained or improved, and may exhibits excellent bacterial proliferation inhibition effect, and superabsorbent polymer prepared thereby. The preparation method of superabsorbent polymer comprises the steps of: forming base polymer powder using hydogel polymer comprising crosslinked polymer, and then, surface crosslinking the base polymer powder using a surface crosslinking solution comprising a surface crosslinking agent and cuprous oxide, wherein the cuprous oxide is included in the content of 0.001 to 2.5 parts by weight, based on 100 parts by weight of the base polymer powder.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: July 7, 2020
    Assignees: LG Chem. Ltd., Seoul National University R&DB Foundation
    Inventors: Yong Seok Choi, Young Sam Kim, Jong Doo Lim, Jong-Chan Lee, Na Kyung Kim, Jinseok Kim
  • Patent number: 10685203
    Abstract: The present invention relates to a high-performance film-type touch sensor that has a low sheet resistance and can have a high resolution, a large area, and a small thickness, and a method of fabricating the same. In the high-performance film-type touch sensor which is peeled off from a substrate and to which a base film is bonded, at least a separation layer, an electrode pattern layer, and a protection layer are sequentially stacked on the base film, and one or more of first and second electrode patterns arranged in different directions on the separation layer are formed of a plurality of conductive layers to reduce sheet resistance.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: June 16, 2020
    Assignee: DONGWOO FINE-CHEM CO., LTD.
    Inventors: Yong Seok Choi, Seung Kook Kim, Ju In Yoon, Soo Ho Cho