Patents by Inventor Hyuk Choi

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).

  • PHASE-TRANSITION OPTICAL ISOMER COMPOUND, TRANSPARENT ELECTROLUMINESCENT DISPLAY DEVICE AND METHOD OF FABRICATING THE TRANSPARENT ELECTROLUMINESCENT DISPLAY DEVICE
    Publication number: 20220013726
    Abstract: A phase-transition optical isomer compound is described, a transparent EL display device including the phase-transition optical isomer compound and a method of fabricating the EL display device, where a phase of the phase-transition optical isomer compound is transited by light irradiation and a second electrode of the EL display device is selectively deposited without a masking process.
    Type: Application
    Filed: September 24, 2021
    Publication date: January 13, 2022
    Applicant: LG Display Co., Ltd.
    Inventors: Jun-Sik HWANG, Nam KI, Chang-Woo CHUN, Eun-Ji SIM, Soo-Hyuk CHOI
  • DIVERSIFIED AND CONNECTED FREIGHT ALLOCATION SYSTEM AND METHOD
    Publication number: 20220005139
    Abstract: The present disclosure relates to a diversified and connected freight allocation system and method, and more particularly, to a diversified and connected freight allocation system and method capable of reducing company's costs and improving resource utilization and efficiency. In an aspect of the present disclosure, a diversified and connected freight allocation system is provided. The system includes: a data input unit; a reference information database containing reference information; and a diversified and connected freight allocation calculation unit determining diversified and connected freight allocations based on the information received from the data input unit and the reference information database.
    Type: Application
    Filed: September 22, 2021
    Publication date: January 6, 2022
    Inventors: Tae Hyun KIM, Jong In CHAE, Chang Yun CHUNG, Jun Hyuk CHOI, Seung Jin YOON, Jae Won KIM, Ok Kyung LIM, Wan Sik KIM, Eun Jeong YOO
  • Methods of driving light sources in a near-eye display
    Patent number: 11209656
    Abstract: A method including determining a maximum luminance location of a display based on a field of view of an eye of a user of the display, and driving a plurality of light sources in the display based on locations of the plurality of light sources with respect to the maximum luminance location of the display. The plurality of light sources is controlled to have different luminance levels in different display zones corresponding to different zones on the retina of the eye of the user. In some examples, the display zones of the display system that have higher luminance levels can be dynamically changed based on the field of view or the gaze direction of the eye of the user.
    Type: Grant
    Filed: October 5, 2020
    Date of Patent: December 28, 2021
    Assignee: FACEBOOK TECHNOLOGIES, LLC
    Inventors: Min Hyuk Choi, Zhiming Zhuang, Wonjae Choi, Cheonhong Kim
  • Method for manufacturing a circuit having a lamination layer using laser direct structuring process
    Patent number: 11191165
    Abstract: The present disclosure relates to the method of manufacturing circuit having lamination layer using LDS (Laser Direct Structuring) to ease the application on surface structure for applied product of various electronic circuit and particularly, in which can form circuit structure of single-layer to multiple-layer on the surface of injection-molded substrate in the shape of plane or curved surface, metal product, glasses, ceramic, rubber or other material.
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: November 30, 2021
    Assignee: ETHERTRONICS, INC.
    Inventors: Seung Hyuk Choi, Hyun Jun Hong, Tae Wook Kim, Cheong Ho Ryu, Young Sang Kim, Sung Jun Kim
  • Wafer quality inspection method and apparatus, and semiconductor device manufacturing method including the wafer quality inspection method
    Patent number: 11189533
    Abstract: A method of inspecting a wafer quality includes injecting ions into a wafer using an ion beam in an ion implantation process, collecting data about the ion beam by using a Faraday cup, extracting first data from the data about the ion beam, extracting a wafer section from the first data, calculating a feature value of a wafer from the wafer section, and evaluating a quality of the wafer by comparing the feature value with a predetermined threshold or range.
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: November 30, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jong-Hyun Choi, Seok-Bae Moon, Jae-Hyuk Choi, Won-Ki Park, Jong-Hwi Seo
  • PLASTICIZER COMPOSITION AND RESIN COMPOSITION INCLUDING THE SAME
    Publication number: 20210363324
    Abstract: Provided is a plasticizer composition, comprising: two or more kinds of terephthalates of the same carbon number type, wherein the carbon number of alkyl groups bonded to two ester groups is the same; and one or more kinds of terephthalates of a different carbon number type, wherein the carbon number of alkyl groups bonded to two ester groups is different the different carbon number type comprises a higher alkyl and a lower alkyl, the higher alkyl is selected from alkyl groups having a carbon number of 8 or less, and the lower alkyl is selected from alkyl groups having a carbon number of 5 or more.
    Type: Application
    Filed: August 23, 2019
    Publication date: November 25, 2021
    Inventors: Hyun Kyu KIM, Jeong Ju MOON, Woo Hyuk CHOI, Yun Ki CHO, Joo Ho KIM, Seok Ho JEONG
  • CATALYST COMPOSITION WITH IMPROVED CHEMICAL WARFARE AGENT DEGRADATION ABILITY AND PROCESSABILITY
    Publication number: 20210362142
    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: Application
    Filed: January 29, 2021
    Publication date: November 25, 2021
    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
  • Memory device and a storage system using the same
    Patent number: 11170856
    Abstract: A memory device includes a first memory cell, and a second memory cell different from the first memory cell, wherein the first memory cell and the second memory cell are included in same memory block; a first word line connected to the first memory cell; a second word line, different from the first word line, connected to the second memory cell; an address decoder which applies one of an erase voltage and an inhibit voltage different from the erase voltage to each of the first and second word lines; and a control logic which controls an erasing operation on the memory block, using the address decoder, wherein while the erasing operation on the memory block is executed, the inhibit voltage is applied to the first word line after the erase voltage is applied, and the erase voltage is applied to the second word line after the inhibit voltage is applied.
    Type: Grant
    Filed: December 7, 2020
    Date of Patent: November 9, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang Wan Nam, Yong Hyuk Choi, Jun Yong Park, Jung No Im
  • MICRO OLEDS HAVING NARROW BEZEL
    Publication number: 20210335896
    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: Application
    Filed: April 27, 2020
    Publication date: October 28, 2021
    Inventors: Min Hyuk Choi, Cheonhong Kim, Richard Han Soo Cho
  • POWER VOLTAGE GENERATOR, DISPLAY APPARATUS HAVING THE SAME AND METHOD OF DRIVING THE SAME
    Publication number: 20210335166
    Abstract: A power voltage generator includes a voltage sensor and a power controller. The voltage sensor is configured to sense a first voltage in a first charge sharing period of a gate clock signal and a second voltage in a second charge sharing period of the gate clock signal. The power breaker is configured to disconnect a power based on the first voltage and the second voltage.
    Type: Application
    Filed: February 22, 2021
    Publication date: October 28, 2021
    Inventors: Sung Soo CHOI, Dae-Sik LEE, Ji Youn SEO, Gwang Soo AHN, Jong Jae LEE, Geun Hyuk CHOI
  • Low cost micro OLED structure and method
    Patent number: 11158690
    Abstract: A method of manufacturing a display system includes forming a display element having a display active area over a silicon backplane, forming a display driver integrated circuit (DDIC), and bonding the display element to the display driver integrated circuit (DDIC). The display active area may include a light emitting diode such as an organic light emitting diode (OLED). Separately forming the display and the display circuitry may simplify formation of the OLED and allow for a higher density control interface between the display and the DDIC.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: October 26, 2021
    Assignee: Facebook Technologies, LLC
    Inventors: Min Hyuk Choi, Cheonghong Kim, Zhiming Zhuang
  • Phase-transition optical isomer compound, transparent electroluminescent display device and method of fabricating the transparent electroluminescent display device
    Patent number: 11158801
    Abstract: A phase-transition optical isomer compound is described, a transparent EL display device including the phase-transition optical isomer compound and a method of fabricating the EL display device, where a phase of the phase-transition optical isomer compound is transited by light irradiation and a second electrode of the EL display device is selectively deposited without a masking process.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: October 26, 2021
    Assignee: LG Display Co., Ltd.
    Inventors: Jun-Sik Hwang, Nam Ki, Chang-Woo Chun, Eun-Ji Sim, Soo-Hyuk Choi
  • Battery-to-vehicle charging system
    Patent number: 11142085
    Abstract: A battery-to-vehicle charging system includes: a vehicle including an on-board charger including a power factor correction circuit having a boost converter circuit, a first battery that is charged with a charge voltage output from the on-board charger, and a first controller controlling a charge process based on a type of a charge power source provided from the outside; and a mobile energy storage device including a second battery storing a direct current (DC) charge power to be provided to the first battery, and a second controller providing a determination signal for the type of the charge power source to the first controller, in which when the first controller receives the determination signal from the second controller and the charge power source is determined as a mobile energy storage device, the first controller controls the power factor correction circuit to operate as a boost converter.
    Type: Grant
    Filed: October 22, 2019
    Date of Patent: October 12, 2021
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Jae Hyuk Choi, Byeong Seob Song
  • SYSTEMS AND METHODS FOR DISPLAYING FOVEATED IMAGES
    Publication number: 20210303063
    Abstract: In one embodiment, a computing system may determine a first region and a second region of an image based on gaze data of a user. The second region of the image may be displayed with lower image resolution. The system may access a first pixel value associated with the first region of the image and cause a first source driver circuit to generate a first pixel signal. The first pixel signal may be configured to control a luminance of a first number of pixels of the display. The system may access a second pixel value associated with the second region of the image and cause a second source driver circuit to generate a second pixel signal. The second pixel signal may be configured to control a second number of pixels, which is larger than the first number and may include a longer pulse duration than the first pixel signal.
    Type: Application
    Filed: April 1, 2021
    Publication date: September 30, 2021
    Inventors: Min Hyuk Choi, Cheonhong Kim, Youngshik Yoon
  • PLASTICIZER COMPOSITION AND RESIN COMPOSITION INCLUDING THE SAME
    Publication number: 20210301104
    Abstract: Provided is a plasticizer composition including a cyclohexane-1,2-diester-based material of Formula 1 and a trimellitate-based material of Formula 2: wherein in Formula 1 and Formula 2, R1to R5 are each independently an alkyl group of 8 to 10 carbon atoms.
    Type: Application
    Filed: June 3, 2019
    Publication date: September 30, 2021
    Inventors: Hyun Kyu KIM, Yun Ki CHO, Woo Hyuk CHOI, Jeong Ju MOON, Joo Ho KIM, Seok Ho JEONG
  • Heterocyclic compound and organic light emitting element using same
    Patent number: 11133477
    Abstract: The present application relates to a hetero-cyclic compound represented by Chemical Formula 1, and an organic light emitting device comprising the same.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: September 28, 2021
    Assignee: LT MATERIALS CO., LTD.
    Inventors: Yun-Ji Lee, Jun-Tae Mo, Yong-Geun Jung, Won-Jang Jeong, Jin-Seok Choi, Dae-Hyuk Choi, Joo-Dong Lee
  • Compression release type engine brake and operating method for the same
    Patent number: 11105230
    Abstract: An compression-release engine brake opens an exhaust valve at an end of a compression stroke for performing braking function. The compression-release engine brake includes: an exhaust cam including a main cam lobe and a brake cam lobe, an exhaust rocker arm including a roller mounted on one end of the exhaust rocker arm contacting or not contacting the exhaust cam and rotating around a rocker arm shaft by rotation of the exhaust cam, a valve bridge disposed at the other end of the exhaust rocker arm and connected with a pair of exhaust valves, and a reset module disposed between the exhaust rocker arm and valve bridge, contacting the roller with the brake cam lobe according to being suppled of engine brake oil, and exhausting the engine brake oil after opening the exhaust valve by rotation of the exhaust cam.
    Type: Grant
    Filed: July 10, 2020
    Date of Patent: August 31, 2021
    Assignees: Hyundai Motor Company, KIA Motors Corporation
    Inventors: Kyung Ryull Kim, Dong Hyuk Choi
  • DIVERSIFIED AND CONNECTED FREIGHT ALLOCATION SYSTEM AND METHOD
    Publication number: 20210256646
    Abstract: The present disclosure relates to a diversified and connected freight allocation system and method, and more particularly, to a diversified and connected freight allocation system and method capable of reducing company's costs and improving resource utilization and efficiency. In an aspect of the present disclosure, a diversified and connected freight allocation system is provided. The system includes: a data input unit; a reference information database containing reference information; and a diversified and connected freight allocation calculation unit determining diversified and connected freight allocations based on the information received from the data input unit and the reference information database.
    Type: Application
    Filed: December 30, 2020
    Publication date: August 19, 2021
    Inventors: Tae Hyun KIM, Jong In CHAE, Chang Yun CHUNG, Jun Hyuk CHOI, Seung Jin YOON, Jae Won KIM, Ok Kyung LIM, Wan Sik KIM, Eun Jeong YOO
  • Power conversion device for charging vehicle battery and method for controlling the same
    Patent number: 11091049
    Abstract: A power conversion device for charging a battery of a vehicle may include the battery, a motor for receiving a battery power source from the battery, a power controller for controlling the motor to change the battery power source into charging power, and a charging controller for selectively performing a charging power supply control for supplying the charging power to the outside and a charging power receipt control for receiving external power.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: August 17, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Byeong-Seob Song, Sam-Gyun Kim, Jae-Hyuk Choi
  • PLASTICIZER COMPOSITION AND RESIN COMPOSITION INCLUDING THE SAME
    Publication number: 20210230098
    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: Application
    Filed: May 30, 2019
    Publication date: July 29, 2021
    Inventors: Hyun Kyu KIM, Seok Ho JEONG, Woo Hyuk CHOI, Yun Ki CHO, Jeong Ju MOON, Joo Ho KIM