Patents by Inventor In Hyuk Choi

In Hyuk 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: 11678576
    Abstract: The present specification relates to a heterocyclic compound represented by Chemical Formula 1, and an organic light emitting device comprising the same.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: June 13, 2023
    Assignee: LT MATERIALS CO., LTD.
    Inventors: Yun-Ji Lee, Han-Kook Oh, Hye-Su Ji, Won-Jang Jeong, Jin-Seok Choi, Dae-Hyuk Choi
  • Publication number: 20230174744
    Abstract: The present invention relates to a plasticizer composition including a lower alkyl-based citrate and a higher alkyl-based citrate simultaneously as citrates, wherein effects are achieved through controlling the ratio of hybrid and nonhybrid types, and the ratio of lower alkyl and higher alkyl, and if the plasticizer composition is applied in a resin, stress resistance and mechanical properties may be maintained to the equal or better levels, balance between migration and loss properties, and plasticization efficiency may be achieved, and light resistance and heat resistance may be markedly improved.
    Type: Application
    Filed: August 6, 2021
    Publication date: June 8, 2023
    Applicant: LG CHEM, LTD.
    Inventors: Hyun Kyu KIM, Jeong Ju MOON, Joo Ho KIM, Seok Ho JEONG, Woo Hyuk CHOI
  • Publication number: 20230178826
    Abstract: A cylindrical secondary battery includes: an electrode assembly including a positive electrode plate, a separator, and a negative electrode plate; a cylindrical can accommodating the electrode assembly and being electrically connected to the negative electrode plate, a lower end of the cylindrical can being open; a rivet terminal passing through an upper surface of the cylindrical can and electrically connected to the positive electrode plate; and a cap plate sealing the lower end of the cylindrical can, the cap plate having no electrical polarity.
    Type: Application
    Filed: December 1, 2022
    Publication date: June 8, 2023
    Inventors: Jin Young MOON, Gun Gue PARK, Gwan Hyeon YU, Hyun Ki JUNG, Myung Seob KIM, Sung Gwi KO, Woo Hyuk CHOI
  • Patent number: 11670591
    Abstract: A semiconductor device includes; a semiconductor substrate including a first region and a second region, a first interlayer insulating layer on the second region, a capping layer disposed on the first interlayer insulating layer, an upper surface of the capping layer includes a first trench, conductive patterns spaced apart on the capping layer, side surfaces of the conductive patterns are aligned with inner side surfaces of the first trench, and a peripheral separation pattern disposed in the first trench to cover the side surfaces of the conductive patterns. The peripheral separation pattern has a first thickness on the side surfaces of the conductive patterns and a second thickness greater than or equal to the first thickness on a lower surface.
    Type: Grant
    Filed: August 17, 2021
    Date of Patent: June 6, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: In-Hyuk Choi, Wonchul Lee, Joonhyoung Yang
  • Patent number: 11666896
    Abstract: Provided are a catalyst composition with improved processability and chemical warfare agent degradation ability, a film composite manufactured by casting the same, and a preparation method thereof. Specifically, provided are a catalyst composition including a copolymer of a first polymer and a second polymer; and a metal-organic framework (MOF), and a film composite including the same, wherein processability and catalytic activity are improved.
    Type: Grant
    Filed: January 29, 2021
    Date of Patent: June 6, 2023
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Kyung Youl Baek, Soon Man Hong, Seung Sang Hwang, Chong Min Koo, Seon Joon Kim, Albert Lee, Jin Young Seo, Min Hyuk Choi, Yu Ri Lee, Sejin Kim, Do Xuan Huy, Que Thi Nguyen, Sangho Cho
  • Patent number: 11665961
    Abstract: The present specification relates to a hetero-cyclic compound represented by Chemical Formula 1, and an organic light emitting device comprising the same.
    Type: Grant
    Filed: October 18, 2018
    Date of Patent: May 30, 2023
    Assignee: LT MATERIALS CO., LTD.
    Inventors: Hyun-Ju La, Yu-Jin Heo, Won-Jang Jeong, Jin-Seok Choi, Dae-Hyuk Choi, Joo-Dong Lee
  • Publication number: 20230159607
    Abstract: A use of GLP-2 and a long-acting conjugate thereof for preventing or treating mucositis induced by radiotherapy, chemotherapy, or a combination thereof is disclosed. The GLP-2, the long-acting conjugate thereof, or the composition including the same may be applied to preparation, treatment, and amelioration of mucositis induced by radiotherapy and/or chemotherapy.
    Type: Application
    Filed: April 2, 2021
    Publication date: May 25, 2023
    Applicant: HANMI PHARM. CO., LTD.
    Inventors: Jin Bong LEE, Jae Hyuk CHOI, Eun Jin PARK
  • Patent number: 11639860
    Abstract: This application relates to an absolute position detection device and detection method of a rotating body using a magnetic material. The device may include magnets coupled to a rotating body and configured to rotate together and having n pole pairs, wherein n is a natural number and (n+1) magnetic materials arranged adjacent to the magnets, spaced apart from each other by a predetermined interval, and configured to rotate together with the rotating body. The device may also include a first Hall sensor spaced apart from the magnets, installed to allow the magnetic materials to rotate in a space between the first Hall sensor and the magnets and configured to output a first signal based on the magnets when the magnetic materials approach the first Hall sensor. The device may further include a controller configured to measure an absolute position of the rotating body using the first signal.
    Type: Grant
    Filed: December 29, 2020
    Date of Patent: May 2, 2023
    Assignee: KOREA ELECTRONICS TECHNOLOGY INSTITUTE
    Inventors: Jun Hyuk Choi, Joon Sung Park, Jin Hong Kim, Byong Jo Hyon, Yong Su Noh, Dong Myoung Joo
  • Patent number: 11629116
    Abstract: Provided is a plasticizer composition including: a cyclohexane-1,2-diester-based substance of the following Chemical Formula 1; and a citrate-based substance of the following Chemical Formula 2: wherein in Chemical Formula 1 and Chemical Formula 2: R1 and R2 each independently are a C8 to C10 alkyl group; and R3 to R5 each independently are a C5 to C10 alkyl group.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: April 18, 2023
    Assignee: LG Chem, Ltd.
    Inventors: Hyun Kyu Kim, Seok Ho Jeong, Woo Hyuk Choi, Yun Ki Cho, Jeong Ju Moon, Joo Ho Kim
  • Patent number: 11621316
    Abstract: A device such as a micro-OLED includes a display element having a display active area disposed over a silicon backplane and a display driver integrated circuit (DDIC) electrically coupled to the display element through at least one contact that extends through the silicon backplane. Through silicon via (TSV) technology may be used to form the contacts. A chip-on-flex architecture may be used to orient and attach the DDIC to the silicon backplane.
    Type: Grant
    Filed: January 20, 2022
    Date of Patent: April 4, 2023
    Assignee: Meta Platforms Technologies, LLC
    Inventors: Min Hyuk Choi, Cheonhong Kim, Richard Han Soo Cho
  • Patent number: 11615740
    Abstract: Example devices may include a display (such as an emissive display), and a controller, where the controller is configured to determine an image content parameter for a displayed image shown on the display, and adjust a duty ratio of the display based on the image content parameter. The duty ratio may be dynamically adjusted based on, for example, an image content parameter that may be related to the brightness of the image, or a portion thereof. The controller may be configured to determine an image content parameter for each of one or more portions of a displayed image, and adjust a duty ratio for corresponding parts of the display based on the image content parameter associated with the respective one or more portions of the displayed image.
    Type: Grant
    Filed: November 23, 2020
    Date of Patent: March 28, 2023
    Assignee: Meta Platforms Technologies, LLC
    Inventors: Min Hyuk Choi, Cheonhong Kim, Zhiming Zhuang
  • Patent number: 11614258
    Abstract: The present invention relates to a boiler which determines a clogging degree of an exhaust flue through which combustion gas is discharged and adjusts gas supply amount to maintain its combustibility, and a combustion control method thereof, the method of the present invention including a) setting a target heat value for achieving a target temperature, b) applying a first database on the basis of the target heat value, c) measuring a rotational speed of an air blower and a pneumatic pressure of air introduced by rotation of the air blow, d) applying a second database on the basis of a rotational speed difference, a pneumatic pressure difference, and the target heat value to calculate an estimated flue clogging value according to the target heat value, and a) applying a third database according to the estimated flue clogging value to calculate an opening amount of a gas valve and control gas supply amount.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: March 28, 2023
    Assignee: KYUNGDONG NAVIEN CO., LTD.
    Inventor: Hyuk Choi
  • Publication number: 20230077330
    Abstract: A substrate processing apparatus includes a process chamber providing a reaction space therein and including a substrate entrance through which a substrate enters or exits, a susceptor disposed inside the process chamber and supporting the substrate, a gas injector disposed on an opposing surface to inject a gas toward the substrate, a valve opening and closing the substrate entrance, and a control electrode formed on the valve. The control electrode is vertically driven.
    Type: Application
    Filed: October 27, 2022
    Publication date: March 16, 2023
    Inventors: ChulJoo HWANG, Bu-Il JEON, Seong-Hyuk CHOI
  • Patent number: 11600235
    Abstract: Embodiments relate to coordinating operation of an under-display camera and a portion of a display panel over the camera to reduce impact of light emitted from the display panel during light sensing periods of the under-display camera. Depending on the level of light in the surrounding of an electronic device, the light emission period of the display panel and the light sensing period of the under-display camera are adjusted. The timing of the light emission period and the light sensing period are controlled so that a row of pixels in the display panel is not in the light emission period when corresponding row or rows of sensors in the under-display camera are in the light sensing period. In this way, the under-display camera may capture images without the influence of light emitted from the display panel.
    Type: Grant
    Filed: December 20, 2021
    Date of Patent: March 7, 2023
    Assignee: Meta Platforms Technologies, LLC
    Inventors: Min Hyuk Choi, Zhiming Zhuang, Dong Chen
  • Publication number: 20230053152
    Abstract: The present invention relates to a novel quercetin derivative compound and to a use thereof. More specifically, the present invention relates to a novel quercetin derivative compound having inhibitory activity against bromodomain extra-terminal (BET) proteins, and to a pharmaceutical composition for preventing or treating BET protein-related diseases, comprising the same.
    Type: Application
    Filed: November 26, 2020
    Publication date: February 16, 2023
    Applicant: Benobio Co., Ltd.
    Inventors: Sung Oog Kim, Jae Hyuk Choi, Jae Yeon Lee, Young Shik Park, Chang Joong Kim, Udell Gutterman Jordan, In-Hyun Lee
  • Publication number: 20230040783
    Abstract: The present disclosure relates to an apparatus and method for controlling an autonomous vehicle to allow an autonomous vehicle to safely pass through a road according to a driver's choice when the width of the road is narrow. The apparatus includes a sensor for acquiring information data of obstacles and vehicles in front of and on a side of a host vehicle, a signal processor for outputting data with respect to positions and media of obstacles and a determination signal representing presence or absence of a vehicle on a driving path, a controller for determining whether driving is possible by analyzing information acquired by the sensor and outputting a control signal corresponding to a selection signal of the driver, an interface for displaying an image processed by the signal processor, and an autonomous driving function unit for performing autonomous driving according to the control signal.
    Type: Application
    Filed: July 1, 2022
    Publication date: February 9, 2023
    Applicants: Hyundai Motor Company, KIA CORPORATION
    Inventors: Jun Hyuk Choi, Sung Woo Hong, Nam Young Oh, Tae Sung Kim, Hwan Soo Moon
  • Publication number: 20230039023
    Abstract: An embodiment converter includes a magnetic material, a first circuit including a first winding surrounding the magnetic material and a clamp circuit configured to reset a power conversion operation, the first circuit being configured to convert power received from a first input voltage source to provide the converted power to a load, and a second circuit including a second winding surrounding the magnetic material, the second circuit being configured to convert power received from a second input voltage source to provide the converted power to the load and to perform the power conversion operation being reset by the clamp circuit.
    Type: Application
    Filed: May 31, 2022
    Publication date: February 9, 2023
    Inventors: Jae Hyuk Choi, Han Shin Youn, Ji Hoon Lim, Dong In Lee
  • Publication number: 20230031614
    Abstract: An embodiment solar cell system includes a first photovoltaic (PV) module and a second PV module connected in series with each other, a differential power processing (DPP) converter configured to convert electricity generated by the first PV module and the second PV module, using a magnetic material having a multi-winding structure, and to provide the converted electricity to a battery, and a control signal generator configured to generate a control signal that controls a main switch for controlling an input-side current path and an output-side current path of the DPP converter, and to adjust a pulse width of the control signal such that a magnetizing current of the DPP converter becomes substantially zero.
    Type: Application
    Filed: June 8, 2022
    Publication date: February 2, 2023
    Inventors: Jae Hyuk Choi, Byeong Seob Song, Han Shin Youn, Ji Hoon Lim, Dong In Lee
  • Patent number: 11568813
    Abstract: Embodiments relate to a pixel circuit of a display with a pixel level burn-in compensation. The pixel circuit includes a light-emitting diode (LED), a first driving transistor between a voltage source and the LED, an enable transistor coupled to a gate electrode of the first driving transistor, and a second driving transistor connected between the voltage source and the LED. The first driving transistor provides first current from the voltage source to the LED according to a gate voltage of the first driving transistor. The enable transistor turns on responsive to a voltage level at an anode of the LED increasing to a threshold voltage level. The second driving transistor provides second current from the voltage source to the LED according to a version of the gate voltage of the first driving transistor received at a gate electrode of the second driving transistor via the enable transistor.
    Type: Grant
    Filed: May 10, 2022
    Date of Patent: January 31, 2023
    Assignee: Meta Platforms Technologies, LLC
    Inventors: Jeong-Keun Ahn, Zhiming Zhuang, Min Hyuk Choi
  • Patent number: 11568816
    Abstract: Embodiments of the present disclosure relate to a pixel circuit with a burn-in compensation. The pixel circuit includes a light-emitting diode (LED), a first driving transistor between a voltage source and the LED, a switching transistor coupled to a gate electrode of the first driving transistor, and a second driving transistor connected between the voltage source and the LED. The first driving transistor provides first current from the voltage source to the LED according to a gate voltage of the first driving transistor. The switching transistor is turned on after receiving an enable signal. The second driving transistor provides second current from the voltage source to the LED according to a version of the gate voltage of the first driving transistor received at a gate of the second driving transistor via the switching transistor.
    Type: Grant
    Filed: February 3, 2022
    Date of Patent: January 31, 2023
    Assignee: Meta Platforms Technologies, LLC
    Inventors: Jeong-Keun Ahn, Min Hyuk Choi, Zhiming Zhuang