Patents by Inventor Seok-Hwan Choi

Seok-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).

  • Patent number: 11973207
    Abstract: A cell unit includes a plurality of battery cells disposed on both surfaces of a unit plate. A case accommodates the cell unit and provided with a cooling device on at least one surface of the case. The unit plate includes a plurality of receiving spaces formed by a plate portion, having a flat surface, and a side portion protruding upwardly and downwardly of the plate portion from both sides of the plate portion. The plurality of battery cells are received in each of the receiving spaces.
    Type: Grant
    Filed: January 20, 2023
    Date of Patent: April 30, 2024
    Assignee: SK ON CO., LTD.
    Inventors: Hae Ryong Jeon, Seok Min Kim, Seok Hwan Lee, Seung Hoon Ju, Ha Neul Choi
  • Patent number: 11945744
    Abstract: Disclosed are a method and apparatus for reusing wastewater. The method for reusing wastewater disclosed herein includes: generating a mixed wastewater by mixing multiple types of wastewater (S20); performing a first purification by passing the mixed wastewater through a flocculation-sedimentation unit (S40); performing a second purification by passing an effluent of the flocculation-sedimentation unit through a membrane bioreactor (MBR) (S60); performing a third purification by passing an effluent of the MBR through a reverse-osmosis membrane unit (S80); and reusing an effluent of the reverse-osmosis membrane unit as cooling water or industrial water (S100).
    Type: Grant
    Filed: April 14, 2023
    Date of Patent: April 2, 2024
    Assignees: SAMSUNG ENGINEERING CO., LTD., SAMSUNG ELECTRONICS CO., LTD
    Inventors: Seok Hwan Hong, Dae Soo Park, Seung Joon Chung, Yong Xun Jin, Jae Hyung Park, Jae Hoon Choi, Jae Dong Hwang, Jong Keun Yi, Su Hyoung Cho, Kyu Won Hwang, June Yurl Hur, Je Hun Kim, Ji Won Chun
  • Patent number: 11916244
    Abstract: A battery module includes a module housing including a first plate in which one side is open, a second plate coupled with the first plate to form an internal space, and a partition member disposed across the internal space to couple the first plate with the second plate; and a battery cell stack disposed in the internal space, in which a plurality of battery cells are stacked.
    Type: Grant
    Filed: December 15, 2020
    Date of Patent: February 27, 2024
    Assignee: SK On Co., Ltd.
    Inventors: Seok Hwan Lee, Hae Ryong Jeon, Seung Hoon Ju, Young Sun Choi, Myeong Hwan Ma, Sol San Son
  • Publication number: 20240060162
    Abstract: Disclosed are wire rods and parts with improved delayed fracture resistance, and methods for manufacturing the same. The wire rod with improved delayed fracture resistance according to the present disclosure contains, by wt %, 0.15-0.30% of C, 0.15-0.25% of Si, 0.95-1.35% of Mn, 0.030% or less of P, 0.030% or less of S, 0.015-0.030% of Ti, 0.0010-0.0040% of B, 0.0010-0.0080% of N, and Fe and inevitable impurities as the balance, and satisfies formula 1 of 2.0?5.5×[Si]+[Mn]?2.4, where [Si] and [Mn] represent the contents (wt %) of the corresponding elements.
    Type: Application
    Filed: December 14, 2021
    Publication date: February 22, 2024
    Applicant: POSCO CO., LTD
    Inventors: Youngsoo CHUN, Sang-yoon LEE, Seok-hwan CHOI, Myungsoo CHOI
  • Publication number: 20240052453
    Abstract: Disclosed are a wire rod and a steel wire for a spring, a spring with improved fatigue resistance and nitriding property, and methods for manufacturing same. The wire rod for a spring with improved fatigue resistance and nitriding property according to the present disclosure contains, by wt %, 0.6-0.7% of C, 2.0-2.5% of Si, 0.2-0.5% of Mn, 0.9-1.6% of Cr, 0.015% of less of P, 0.01% of less of S, 0.01% of less of Al, 0.007% of less of N, 0.1-0.25% of Mo, 0.1-0.25% of V, and Fe and inevitable impurities as the balance, wherein Cr+Mn is 1.8% or less, Mo/V is 1.5 or less, and the microstructure includes 60% or more of a pearlite structure in the C section.
    Type: Application
    Filed: November 18, 2021
    Publication date: February 15, 2024
    Applicant: POSCO CO., LTD
    Inventors: Junmo LEE, Seok-hwan CHOI, Myungsoo CHOI
  • Publication number: 20240052454
    Abstract: Disclosed are high-strength wire rods and parts, having improved delayed fracture resistance, for use in bolts, and a methods for manufacturing the same. The high-strength wire rod, having improved delayed fracture resistance, for use in bolts according to the present disclosure contains, by wt %, 0.15-0.30% of C, 0.05-0.35% of Si, 0.95-1.35% of Mn, 0.030% or less of P, 0.030% or less of S, 0.005-0.030% of Ti, 0.0010-0.0040% of B, and Fe and inevitable impurities as the balance.
    Type: Application
    Filed: December 14, 2021
    Publication date: February 15, 2024
    Applicant: POSCO CO., LTD
    Inventors: Youngsoo CHUN, Seok-hwan CHOI, Kyoungsik KIM, Myungsoo CHOI
  • Publication number: 20240052455
    Abstract: Disclosed in the present specification are: a wire rod for ultrahigh-strength springs, which can be applied to motorcycle suspension springs; a steel wire; and a manufacturing method therefor. According to one embodiment of the disclosed wire rod for ultrahigh-strength springs, the wire rod comprises, by wt %, 0.5-0.7% of C, 0.4-0.9% of Si, 0.3-0.8% of Mn, 0.2-0.6% of Cr, 0.015% or less of P, 0.010% or less of S, 0.01% or less of Al, 0.01% or less of N, 0.005% or less of O, and the balance of Fe and inevitable impurities, wherein in 1 mm2 area of the center of the cross-section perpendicular to the longitudinal direction, the proportion of the area satisfying at least one from among C>0.8%, Si>0.9%, Cr>0.8% and Mn>0.8% by wt % can be 5% or less.
    Type: Application
    Filed: November 18, 2021
    Publication date: February 15, 2024
    Applicant: POSCO CO., LTD
    Inventors: Junmo LEE, Seok-hwan CHOI, Myunsoo CHOI
  • Publication number: 20230382409
    Abstract: Proposed is a system for enabling a vehicle to perform a circuit mode. The system includes a communication unit provided in the vehicle to communicate with a vehicle-external device, a service providing server provided in the vehicle-external device to provide information related to a circuit, a controller which recognizes a current position of the vehicle by receiving a signal related to a vehicle position and which determines whether the vehicle arrives at the circuit based on the current position of the vehicle and the information related to the circuit received from the service providing server via the communication unit, the controller being configured to perform control for a circuit guide function that provides guide information related to the circuit mode and circuit driving when the vehicle enters the circuit mode, and an input/output unit outputting and providing the guide information to a driver by controlling the controller.
    Type: Application
    Filed: December 9, 2022
    Publication date: November 30, 2023
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventors: Ho Kyun Chun, Jae Sung Bang, Seok Hwan Choi, Dong Hyeon Woo, Dae Woong Hwang, Daw Ki Hong, Ho Won Seo
  • Patent number: 11640762
    Abstract: An apparatus for indicating an expected speed of a vehicle includes an information provider configured to provide vehicle driving information and deceleration event information required to determine the expected speed of the vehicle at a deceleration event point while the vehicle travels, a controller configured to detect a deceleration event on a travel path based on the vehicle driving information and the deceleration event information provided by the information provider and to determine the expected speed of the vehicle at the detected deceleration event point, and a display unit configured to receive a signal indicating the expected speed of the vehicle at the deceleration event point and the deceleration event information from the controller and to display the received expected speed of the vehicle in a predetermined form of an augmented reality (AR) image and a position of the deceleration event on an information display screen.
    Type: Grant
    Filed: July 15, 2021
    Date of Patent: May 2, 2023
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventors: Seok Hwan Choi, Ho Kyun Chun
  • Patent number: 11505845
    Abstract: The present invention relates to a soft high-silicon steel sheet, and more particularly, to a soft high-silicon steel sheet which has ductility even if the silicon content thereof is greater than 4%, and can thus be manufactured into a steel sheet having a high silicon content only by means of rolling without an additional siliconizing process. The soft high-silicon steel sheet may include a silicon content greater than 4 wt % and less than or equal to 7 wt % and 1 to 20% of chromium, or may include 5 to 7 wt % of Si+Al and 1 to 20 wt % of chromium.
    Type: Grant
    Filed: September 10, 2019
    Date of Patent: November 22, 2022
    Assignee: POSCO
    Inventors: Dong-Kyun Kim, Byung-Deug Hong, Seok-Hwan Choi
  • Patent number: 11457077
    Abstract: A server may include a communication interface for receiving a plurality of profile information from a plurality of terminals; and a processor configured to divide users of the plurality of terminals into a plurality of groups based on a first criterion, to divide users of a first gender included in each group into a plurality of subgroups based on a second criterion different from the first criterion, to divide users of a second gender different from the first gender, included in each group into a plurality of matching groups to correspond to each of the plurality of subgroups, and to provide profile information of users included in each of the plurality of matching groups corresponding to each of the plurality of subgroups among the plurality of profile information to users included in each of the plurality of subgroups.
    Type: Grant
    Filed: September 9, 2020
    Date of Patent: September 27, 2022
    Assignee: Hyperconnect Inc.
    Inventors: Sang Il Ahn, Hyeong Keol Nam, Seok Jun Seo, Seok Hwan Choi, Jae Hyeuk Oh
  • Publication number: 20220251675
    Abstract: A wire rod and a steel wire for a high stress suspension spring for motorcycles, wherein decarbonization and low-temperature structure occurrence are easily suppressed when the wire rod and the steel wire are cooled down; and a manufacturing method therefor. A steel wire for a high strength spring includes, in percent by weight (wt %), 0.55 to 0.65% of carbon (C), 0.5 to 0.9% of silicon (Si), 0.3 to 0.8% of manganese (Mn), 0.3 to 0.6% of chromium (Cr), 0.015% or less of phosphorus (P), 0.01% or less of sulfur (S), 0.01% or less of aluminum (Al), 0.005% or less of nitrogen (N), and the remainder of iron (Fe) and inevitable impurities, satisfies Formula (1) below, and comprises 90% or more of a tempered martensite structure. In Formula (1), C, Mn, Cr, and Si denote contents (wt %) of the corresponding elements, respectively. (1) 0.77?C+(?)*Mn+(?)*Cr+( 1/24)*Si?0.83.
    Type: Application
    Filed: June 22, 2020
    Publication date: August 11, 2022
    Applicant: POSCO
    Inventors: Jun Mo Lee, Seok-Hwan Choi, Myung Soo Choi, Han Hwi Kim
  • Publication number: 20220114889
    Abstract: An apparatus for indicating an expected speed of a vehicle includes an information provider configured to provide vehicle driving information and deceleration event information required to determine the expected speed of the vehicle at a deceleration event point while the vehicle travels, a controller configured to detect a deceleration event on a travel path based on the vehicle driving information and the deceleration event information provided by the information provider and to determine the expected speed of the vehicle at the detected deceleration event point, and a display unit configured to receive a signal indicating the expected speed of the vehicle at the deceleration event point and the deceleration event information from the controller and to display the received expected speed of the vehicle in a predetermined form of an augmented reality (AR) image and a position of the deceleration event on an information display screen.
    Type: Application
    Filed: July 15, 2021
    Publication date: April 14, 2022
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventors: Seok Hwan CHOI, Ho Kyun CHUN
  • Patent number: 11275866
    Abstract: Disclosed herein is an image processing method and an image processing system for deep learning. The image processing method includes converting image data including at least one figure image into a vector image by changing a data format, encrypting at least one first attribute value for a position of the figure image in the vector image according to a selected encryption scheme, constructing a de-identified image for the image data by using a second attribute value which is changed by the encryption, and transferring the de-identified image to a cloud server in which a deep learning model is managed and processing deep learning operations of the de-identified image by the cloud server.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: March 15, 2022
    Assignee: PUSAN NATIONAL UNIVERSITY INDUSTRY-UNIVERSITY COOPERATION FOUNDATION
    Inventors: Yoon Ho Choi, Dong-Hyun Ko, Seok-Hwan Choi, Jinmyeong Shin, Seon-Jin Hwang
  • Publication number: 20220032771
    Abstract: A stop range indication device and a stop range indication method for a vehicle are proposed. The device and the method calculate an estimated stop range of a host vehicle using a variety of pieces of information during deceleration traveling of the host vehicle and provide visual guidance to a driver by displaying a stop range ahead of the host vehicle in accordance to the result of the calculation, thereby enabling the driver to drive safely while recognizing the stop range ahead of the host vehicle.
    Type: Application
    Filed: November 23, 2020
    Publication date: February 3, 2022
    Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Seok Hwan CHOI, Ho Kyun CHUN, Jae Sung BANG
  • Publication number: 20210075883
    Abstract: A server may include a communication interface for receiving a plurality of profile information from a plurality of terminals; and a processor configured to divide users of the plurality of terminals into a plurality of groups based on a first criterion, to divide users of a first gender included in each group into a plurality of subgroups based on a second criterion different from the first criterion, to divide users of a second gender different from the first gender, included in each group into a plurality of matching groups to correspond to each of the plurality of subgroups, and to provide profile information of users included in each of the plurality of matching groups corresponding to each of the plurality of subgroups among the plurality of profile information to users included in each of the plurality of subgroups.
    Type: Application
    Filed: September 9, 2020
    Publication date: March 11, 2021
    Inventors: Sang Il Ahn, Hyeong Keol Nam, Seok Jun Seo, Seok Hwan Choi, Jae Hyeuk Oh
  • Publication number: 20210019443
    Abstract: Disclosed herein is an image processing method and an image processing system for deep learning. The image processing method includes converting image data including at least one figure image into a vector image by changing a data format, encrypting at least one first attribute value for a position of the figure image in the vector image according to a selected encryption scheme, constructing a de-identified image for the image data by using a second attribute value which is changed by the encryption, and transferring the de-identified image to a cloud server in which a deep learning model is managed and processing deep learning operations of the de-identified image by the cloud server.
    Type: Application
    Filed: December 5, 2019
    Publication date: January 21, 2021
    Inventors: Yoon Ho CHOI, Dong-Hyun Ko, Seok-Hwan Choi, Jinmyeong Shin, Seon-Jin Hwang
  • Publication number: 20200048729
    Abstract: The present invention relates to a soft high-silicon steel sheet, and more particularly, to a soft high-silicon steel sheet which has ductility even if the silicon content thereof is greater than 4%, and can thus be manufactured into a steel sheet having a high silicon content only by means of rolling without an additional siliconizing process. The soft high-silicon steel sheet may include a silicon content greater than 4 wt % and less than or equal to 7 wt % and 1 to 20% of chromium, or may include 5 to 7 wt % of Si+Al and 1 to 20 wt % of chromium.
    Type: Application
    Filed: September 10, 2019
    Publication date: February 13, 2020
    Inventors: Dong-Kyun KIM, Byung-Deug HONG, Seok-Hwan CHOI
  • Patent number: D1025167
    Type: Grant
    Filed: April 28, 2023
    Date of Patent: April 30, 2024
    Inventors: Han Wool Choi, Jun Hwan Park, Seok Young Youn, Hun Keon Ko, Ho Seong Kang, Hyeon Jeong An, Gyu Jong Hwang, Soo Kyoung Kang, Dong Jin Hyun, Geun Sang Yu
  • Patent number: D1025168
    Type: Grant
    Filed: April 28, 2023
    Date of Patent: April 30, 2024
    Inventors: Han Wool Choi, Jun Hwan Park, Seok Young Youn, Hun Keon Ko, Ho Seong Kang, Hyeon Jeong An, Gyu Jong Hwang, Soo Kyoung Kang, Dong Jin Hyun, Geun Sang Yu