Patents by Inventor Kwang-Jin Choi

Kwang-Jin 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: 20240154127
    Abstract: A positive electrode including a positive electrode active material layer disposed on at least one surface of a positive electrode current collector, the positive electrode active material layer including a lithium transition metal phosphate, a fluorine-based binder, and a conductive material. The lithium transition metal phosphate includes a carbon coating layer formed on a surface thereof, and a ratio (B/A) of a total weight (B) of the fluorine-based binder to a total weight (A) of carbon of the conductive material and the lithium transition metal phosphate in the positive electrode active material layer is 0.7 to 1.7.
    Type: Application
    Filed: October 31, 2023
    Publication date: May 9, 2024
    Applicant: LG Energy Solution, Ltd.
    Inventors: Geum Jae Han, O Jong Kwon, Kwang Jin Kim, Ki Woong Kim, In Gu An, Jung Hun Choi, Da Young Lee, Jin Su Sung, Jeong Hwa Park
  • Publication number: 20240140224
    Abstract: A charging cable for an electric vehicle includes a cable main body having a flat cross-section in a width direction thereof and partitioned into a plurality of internal regions. The charging cable includes terminal portions through which positive and negative power cables, a communication/sensor cable, a coolant flow channel, and a ground pass into the plurality of internal regions, respectively. The terminal portions are arranged in a row in the width direction of the cable main body.
    Type: Application
    Filed: March 3, 2023
    Publication date: May 2, 2024
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventors: Woo Hyung Lee, Sang Jin Lee, Young Tae Choi, Kwang Min Oh, Ho Choi
  • Publication number: 20240136664
    Abstract: A battery includes an electrode assembly including a first electrode, a second electrode and a separator between the first electrode and the second electrode, the first electrode, the second electrode and the separator being wound around a winding axis to define a core and an outer peripheral surface. The first electrode and the second electrode include a first uncoated region and a second uncoated region along a winding direction, respectively, and an active material layer coating is absent in the first uncoated region and the second uncoated region. The battery further includes a housing receiving the electrode assembly through an opening formed at a bottom, a first current collector coupled to the first uncoated region and disposed within the housing, a cap covering the opening, a spacer interposed between the cap and the electrode assembly to fix the electrode assembly and seal the housing, and a terminal electrically connected to the second uncoated region.
    Type: Application
    Filed: February 18, 2022
    Publication date: April 25, 2024
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Min-Ki JO, Bo-Hyun KANG, Do-Gyun KIM, Su-Ji CHOI, Kwang-Su HWANGBO, Hae-Jin LIM, Jae-Won LIM, Hak-Kyun KIM, Je-Jun LEE, Ji-Min JUNG, Geon-Woo MIN, Jae-Woong KIM
  • Publication number: 20240136674
    Abstract: Disclosed is an electrode assembly, a battery, and a battery pack and a vehicle including the same. In the electrode assembly, a first electrode, a second electrode, and a separator interposed therebetween are wound based on a winding axis to define a core and an outer circumference. The first electrode includes a first active material portion coated with an active material layer and a first uncoated portion not coated with an active material layer along a winding direction. At least a part of the first uncoated portion is defined as an electrode tab by itself. The first uncoated portion includes a first portion adjacent to the core of the electrode assembly, a second portion adjacent to the outer circumference of the electrode assembly, and a third portion interposed between the first portion and the second portion. The first portion or the second portion has a smaller height than the third portion in the winding axis direction.
    Type: Application
    Filed: January 19, 2022
    Publication date: April 25, 2024
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Jong-Sik PARK, Jae-Won LIM, Yu-Sung CHOE, Hak-Kyun KIM, Je-Jun LEE, Byoung-Gu LEE, Duk-Hyun RYU, Kwan-Hee LEE, Jae-Eun LEE, Pil-Kyu PARK, Kwang-Su HWANGBO, Do-Gyun KIM, Geon-Woo MIN, Hae-Jin LIM, Min-Ki JO, Su-Ji CHOI, Bo-Hyun KANG, Jae-Woong KIM, Ji-Min JUNG, Jin-Hak KONG, Soon-O LEE, Kyu-Hyun CHOI
  • Publication number: 20240128605
    Abstract: Provided are an electrode assembly, a battery, and a battery pack and vehicle including the same. An electrode assembly, in which a first electrode, a second electrode, and a separator interposed therebetween are wound about an axis to define a core and an outer circumferential surface. At least one of the first electrode and the second electrode includes, at a long side end portion, an uncoated portion exposed beyond the separator in a direction of the axis. At least a part of the uncoated portion is bent in a radial direction of the electrode assembly to define a bent surface region having overlapping layers of the uncoated portion. The bent surface region includes a welding target region having a number of the overlapping layers of the uncoated portion, and the welding target region extends along a radial direction of the electrode assembly.
    Type: Application
    Filed: February 18, 2022
    Publication date: April 18, 2024
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Min-Woo KIM, Do-Gyun KIM, Kyung-Wook CHO, Geon-Woo MIN, Min-Ki JO, Jae-Woong KIM, Kwang-Su HWANGBO, Hae-Jin LIM, Su-Ji CHOI, Jae-Won LIM, Hak-Kyun KIM, Je-Jun LEE, Ji-Min JUNG
  • Publication number: 20240128590
    Abstract: A battery includes an electrode assembly including a first electrode, a second electrode and a separator between the first electrode and the second electrode wound around a winding axis to define a core and an outer circumferential surface, the first electrode including a first uncoated region in which an active material layer is not coated along a winding direction; a housing accommodating the electrode assembly through an open portion at a lower end thereof; a first current collector coupled to the first uncoated region and disposed in the housing; a cap to cover the open portion; and a spacer between the first current collector and the cap and having a height corresponding to a distance between the first current collector and the cap.
    Type: Application
    Filed: February 18, 2022
    Publication date: April 18, 2024
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Geon-Woo MIN, Hae-Jin LIM, Do-Gyun KIM, Kwang-Su HWANGBO, Min-Ki JO, Bo-Hyun KANG, Su-Ji CHOI, Jae-Won LIM, Hak-Kyun KIM, Je-Jun LEE, Ji-Min JUNG
  • Publication number: 20240128517
    Abstract: Disclosed is an electrode assembly, a battery, and a battery pack and a vehicle including the same. In the electrode assembly, a first electrode, a second electrode, and a separator interposed therebetween are wound based on an axis to define a core and an outer circumference. The first electrode includes an uncoated portion at a long side end thereof and exposed out of the separator along a winding axis direction of the electrode assembly. A part of the uncoated portion is bent in a radial direction of the electrode assembly to form a bending surface region that includes overlapping layers of the uncoated portion, and in a partial region of the bending surface region, the number of stacked layers of the uncoated portion is 10 or more in the winding axis direction of the electrode assembly.
    Type: Application
    Filed: January 19, 2022
    Publication date: April 18, 2024
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Hae-Jin LIM, Jin-Hak KONG, Soon-O LEE, Kyu-Hyun CHOI, Do-Gyun KIM, Su-Ji CHOI, Kwang-Su HWANGBO, Geon-Woo MIN, Min-Ki JO, Jae-Won LIM, Hak-Kyun KIM, Je-Jun LEE, Ji-Min JUNG, Jae-Woong KIM, Jong-Sik PARK, Yu-Sung CHOE, Byoung-Gu LEE, Duk-Hyun RYU, Kwan-Hee LEE, Jae-Eun LEE, Bo-Hyun KANG, Pil-Kyu PARK
  • Patent number: 11944958
    Abstract: Disclosed herein are a catalyst for hydrocracking reaction of high molecular weight components in bio-oil, a method for preparing the same and a method for bio-oil upgrading using the same. The catalyst includes a zeolite carrier; and at least one metal selected from the group consisting of nickel (Ni), ruthenium (Ru) and cerium (Ce) supported on the carrier. The catalyst promotes the hydrocracking of high molecular weight compounds contained in the bio-oil, but also inhibits the polymerization reaction of the decomposed product, thereby more effectively enhancing the hydrocracking reaction of the bio-oil.
    Type: Grant
    Filed: July 18, 2022
    Date of Patent: April 2, 2024
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Chunjae Yoo, Jeong-Myeong Ha, Dong Jin Suh, Jae Wook Choi, Young Hyun Yoon, Kyeongsu Kim, Chang Soo Kim, Kwang Ho Kim, Thi Lien Do
  • Patent number: 11944661
    Abstract: The present invention provides a pharmaceutical composition for prevention or treatment of a stress disease and depression, the pharmaceutical composition be safely useable without toxicity and side effects by using an extract of leaves of Vaccinium bracteatum Thunb., which is natural resource of Korea, so that the reduction of manufacturing and production costs and the import substitution and export effects can be expected through the replacement of a raw material for preparation with a plant inhabiting in nature.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: April 2, 2024
    Assignee: JEONNAM BIOINDUSTRY FOUNDATION
    Inventors: Chul Yung Choi, Dool Ri Oh, Yu Jin Kim, Eun Jin Choi, Hyun Mi Lee, Dong Hyuck Bae, Kyo Nyeo Oh, Myung-A Jung, Ji Ae Hong, Kwang Su Kim, Hu Won Kang, Jae Yong Kim, Sang O Pan, Sung Yoon Park, Rack Seon Seong
  • Publication number: 20240086603
    Abstract: A method of reinforcement learning of a neural network device for generating a verification vector for verifying a circuit design comprising a circuit block includes inputting a test vector to the circuit block, generating one or more rewards based on a coverage corresponding to the test vector, the coverage being determined based on a state transition of the circuit block based on the test vector, and applying the one or more rewards to a reinforcement learning.
    Type: Application
    Filed: November 16, 2023
    Publication date: March 14, 2024
    Applicant: SAMSUNG ELECTRONICS CO, LTD.
    Inventors: In HUH, Jeong-hoon KO, Hyo-jin CHOI, Seung-ju KIM, Chang-wook JEONG, Joon-wan CHAI, Kwang-II PARK, Youn-sik PARK, Hyun-sun PARK, Young-min OH, Jun-haeng LEE, Tae-ho LEE
  • Publication number: 20240074736
    Abstract: An ultrasonic image providing method of the present disclosure includes: receiving ultrasonic images; measuring a plurality of similarities for a plurality of measurement items for at least one of the ultrasonic images; comparing the plurality of similarities with corresponding default thresholds, respectively; when none of the plurality of similarities is greater than the corresponding default threshold, selecting a measurement item maintaining the greatest similarity among the plurality of similarities for a reference time; and providing an ultrasonic image for the selected measurement item as an ultrasonic image.
    Type: Application
    Filed: August 19, 2021
    Publication date: March 7, 2024
    Applicant: SAMSUNG MEDISON CO., LTD.
    Inventors: Ja Young Kwon, Ye Jin Park, Jin Yong Lee, Sung Wook Park, Jin Ki Park, Dong Eun Lee, Ji Hun Lee, Kwang Yeon Choi
  • Patent number: 10261581
    Abstract: A head-mounted display (HMD) may comprise: a sensor unit configured to measure the movement of a user wearing the HMD; a display unit configured to display an image; and a control unit configured to calculate the user's sightline direction from a measurement value from the sensor unit and, when the user's sightline direction satisfies a preset condition, control elements of the image other than the viewpoint using the user's sightline as a input signal. When the user's sightline direction satisfies the preset condition, the HMD controls the image, which is displayed on the HMD, using the user's sightline as an input signal, thereby performing event processing and the like without any separate controller.
    Type: Grant
    Filed: September 17, 2015
    Date of Patent: April 16, 2019
    Assignee: FXGEAR INC.
    Inventors: Sung Wu Kim, Kwang Jin Choi
  • Patent number: 10250802
    Abstract: An apparatus for processing a wide viewing angle image may include: a correction parameter generating unit for analyzing an image input from a camera to generate a correction parameter, a projection geometry generating unit for generating a projection geometry to output a wide viewing angle image by using the correction parameter, and a wide viewing angle image packaging unit for encoding the input image, the correction parameter and the projection geometry to generate a wide viewing angle image package. A method for processing a wide viewing angle image may be performed using the apparatus.
    Type: Grant
    Filed: November 12, 2014
    Date of Patent: April 2, 2019
    Assignee: FXGear Inc.
    Inventors: Kwang Jin Choi, Yeong Jun Park, Kyung Gun Na
  • Publication number: 20190052868
    Abstract: A wide viewing angle video processing system comprises: a transmitting device configured to extract a plurality of background images and one or more foreground videos from an original wide viewing angle video, and to transmit the extracted plurality of background images and one or more foreground videos; and a display device configured to receive the plurality of background images and the one or more foreground videos from the transmitting device, to generate a wide viewing angle background image by combining the plurality of background images, and to generate a reconstructed wide viewing angle video in which the one or more foreground videos are composited on the wide viewing angle background image, and to display the reconstructed wide viewing angle video. The wide viewing angle video processing system can implement a wide viewing angle video having super resolution, which overcomes decoding limitations in conventional virtual reality devices.
    Type: Application
    Filed: February 24, 2017
    Publication date: February 14, 2019
    Inventors: Kyung Kun Na, Kwang Jin Choi
  • Patent number: 10204420
    Abstract: A simulation apparatus may comprise: a sensor unit configured to acquire movement information of an object using one or more sensors; a direction calculation unit configured to calculate direction information of the object using the movement information; and a simulation unit configured to simulate a physical object and render an image of the physical object on the basis of the direction information received from the direction calculation unit. The direction calculation unit may include a time delay correction unit configured to correct the direction information using a time difference between the time of acquiring the movement information and the time of rendering the image.
    Type: Grant
    Filed: September 22, 2015
    Date of Patent: February 12, 2019
    Assignee: FXGEAR INC.
    Inventors: Kyung Kun Na, Kwang Jin Choi
  • Publication number: 20180364800
    Abstract: Exemplary embodiments relate to a system for picking an object based on view-direction including a transmitting device configured to extract an object region including an object from an original image, and transmit an object masking image of the extracted object region and the original image, and a playing device configured to receive the object masking image and the original image from the transmitting device, display the original image, and pick the object in the displayed original image based on view-direction of a user viewing the original image, and a method for picking an object based on view-direction through them. According to the present disclosure, it is possible to overcome the limit of decoding of conventional virtual reality devices and enable picking in an image with ultra high resolution.
    Type: Application
    Filed: June 26, 2017
    Publication date: December 20, 2018
    Inventors: Kyung Kun NA, Kwang Jin CHOI
  • Patent number: 9904359
    Abstract: A head-mounted display (HMD) may include a sensor unit, a display unit configured to display an image, and a control unit for measuring a tapping applied to the head-mounted display from a measurement value obtained by the sensor unit, and controlling the image displayed on the display unit by using the tapping as an input signal. When the HMD is used, an image displayed on the HMD may be controlled by using a tapping applied to the HMD as an input signal, and thus, an event may be processed without using any additional controller.
    Type: Grant
    Filed: November 11, 2014
    Date of Patent: February 27, 2018
    Assignee: FXGear Inc.
    Inventors: Kyung Gun Na, Kwang Jin Choi
  • Publication number: 20170294022
    Abstract: A simulation apparatus may comprise: a sensor unit configured to acquire movement information of an object using one or more sensors; a direction calculation unit configured to calculate direction information of the object using the movement information; and a simulation unit configured to simulate a physical object and render an image of the physical object on the basis of the direction information received from the direction calculation unit. The direction calculation unit may include a time delay correction unit configured to correct the direction information using a time difference between the time of acquiring the movement information and the time of rendering the image.
    Type: Application
    Filed: September 22, 2015
    Publication date: October 12, 2017
    Inventors: Kyung Kun NA, Kwang Jin CHOI
  • Publication number: 20170255256
    Abstract: A head-mounted display (HMD) may comprise: a sensor unit configured to measure the movement of a user wearing the HMD; a display unit configured to display an image; and a control unit configured to calculate the user's sightline direction from a measurement value from the sensor unit and, when the user's sightline direction satisfies a preset condition, control elements of the image other than the viewpoint using the user's sightline as a input signal. When the user's sightline direction satisfies the preset condition, the HMD controls the image, which is displayed on the HMD, using the user's sightline as an input signal, thereby performing event processing and the like without any separate controller.
    Type: Application
    Filed: September 17, 2015
    Publication date: September 7, 2017
    Inventors: Sung Wu KIM, Kwang Jin CHOI
  • Patent number: 9727137
    Abstract: A user viewpoint related image processing apparatus includes: a sensor unit configured to sense a viewpoint change of a user and generate motion data, a communication interface unit configured to receive an image package including image data from a media server, a scene constructing unit configured to, using the image package, place a virtual camera in a virtual space and construct a scene for the image data, and a virtual camera pose changing unit configured to, using the motion data, change a pose of the placed virtual camera to respond to the viewpoint change of the user.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: August 8, 2017
    Assignee: FXGear Inc.
    Inventors: Kwang Jin Choi, Yeong Jun Park, Kyung Kun Na