Patents by Inventor Sang Won Choi

Sang Won 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: 20240412105
    Abstract: Disclosed is a method of rapidly and precisely predicting lithium ion conductivity of a solid electrolyte. The method may include simulating a crystal structure of the solid electrolyte and creating training sets based on the crystal structure for machine learning; calculating a potential specific to the simulated crystal structure by machine learning using the training sets; and predicting the lithium ion conductivity of the solid electrolyte from the potential using molecular dynamics simulations.
    Type: Application
    Filed: December 6, 2023
    Publication date: December 12, 2024
    Inventors: Sun Ho Choi, Yong Jun Jang, Yong Gu Kim, Sang Heon Lee, Seong Hyeon Choi, Sa Heum Kim, Sung Man Cho, Sang Uck Lee, Ji Hoon Kim, Ji Won Lee, Ji Seon Kim
  • Patent number: 12166101
    Abstract: A method of manufacturing a high-electron-mobility transistor device is provided. The method includes sequentially forming a transition layer and a semiconductor layer on a substrate, etching a portion of a surface of the semiconductor layer to form a barrier layer region having a certain depth and forming a barrier layer in the barrier layer region, forming a source electrode and a drain electrode on a 2-dimensional electron gas (2-DEG) layer upward exposed at a surface of the semiconductor layer, in defining the 2-DEG layer formed along an interface between the semiconductor layer and the barrier layer, forming a passivation layer on the semiconductor layer, the barrier layer, the source electrode, and the drain electrode and etching a portion of the passivation layer to upward expose the source electrode, the drain electrode, and the barrier layer, and forming a gate electrode on the upward exposed barrier layer.
    Type: Grant
    Filed: February 14, 2022
    Date of Patent: December 10, 2024
    Assignee: ELECTRONICS AND TELECOMMINICATIONS RESEARCH INSTITUTE
    Inventors: Soo Cheol Kang, Hyun Wook Jung, Seong IL Kim, Hae Cheon Kim, Youn Sub Noh, Ho Kyun Ahn, Sang Heung Lee, Jong Won Lim, Sung Jae Chang, Il Gyu Choi
  • Patent number: 12166160
    Abstract: An apparatus for manufacturing a display device includes a stage, a first electric field applying module including first probe pins and disposed on a first side of the stage, a light irradiation module including light-emitting elements and disposed on the stage, and a first voltage output module that outputs an emission driving signal that drives the light-emitting elements, outputs a first alignment signal to one of the first probe pins, and outputs a second alignment signal to another one of the first probe pins.
    Type: Grant
    Filed: November 17, 2021
    Date of Patent: December 10, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jin Won Baek, Lae Ho Kim, Sang Woong Baek, Young Geun Cho, Chung Sic Choi
  • Publication number: 20240405981
    Abstract: The present disclosure according to at least one embodiment provides a method of processing operations of a polynomial-based security algorithm, the method being performed by a computing system. The method comprises identifying a plurality of operations using secret information in the polynomial-based security algorithm, generating a random index to be applied to the identified operations, and performing the operations using the random index.
    Type: Application
    Filed: May 9, 2024
    Publication date: December 5, 2024
    Applicants: SAMSUNG SDS CO., LTD., KOOKMIN UNIVERSITY INDUSTRY ACADEMY COOPERATION FOUNDATION
    Inventors: Sang Yub LEE, Jong Hyeok LEE, Jae Seung HAN, Jae Won HUH, Keon Hee CHOI, Dong Guk HAN, Ji Hoon KWON, Hyo Jin YOON, Ji Hoon CHO
  • Publication number: 20240405177
    Abstract: A display apparatus may include a plurality of pixels in a display area and a pixel comprises a plurality of sub-pixels, a plurality of first electrodes that extend in a first direction and are between the sub-pixels, a connection electrode between the plurality of first electrodes and configured to transmit a voltage, and a second electrode connected to the connection electrode and configured to apply the voltage to the plurality of sub-pixels.
    Type: Application
    Filed: May 23, 2024
    Publication date: December 5, 2024
    Inventors: Jun Young Jo, Bung Goo Kim, Hyoung Ho Ahn, Hee Won Lee, Hye Sun Jung, Jae Kwang Lee, Pyung Ho Choi, Tae Yoon Kim, Sang Hak Shin, Hyoung Sun Park
  • Publication number: 20240406209
    Abstract: Disclosed herein are a method for countering an asynchronous attack on a supply chain security protocol and an apparatus for the same. The method includes, in a supply chain security protocol performed by a terminal device into which a dielet is inserted and an authentication server, performing a self-generation mode in which a counter value within the dielet is registered in the authentication server, performing a read-out mode in which whether an asynchronous attack occurs is detected by comparing the counter values respectively stored in the dielet and the authentication server when a message for communication is sent, and replacing a message for the communication with a random value when an asynchronous attack is detected.
    Type: Application
    Filed: December 28, 2023
    Publication date: December 5, 2024
    Inventors: Yong-Je CHOI, Dae-Won KIM, Sang-Su LEE, Byeong-Cheol CHOI, Seung-Kwang LEE
  • Patent number: 12160739
    Abstract: A method for authentication, a user terminal and an authentication server for executing the same are disclosed. An authentication server according to an embodiment disclosed includes a number receiver that receives a number of a user terminal from a callee who has received a call originated from the user terminal, a device authenticator that determines whether to generate an authentication key based on the number of the user terminal received from the callee and a caller number received from the user terminal, and generates the authentication key when it is determined to generate the authentication key, and an authentication key transmitter that transmits the authentication key to the user terminal.
    Type: Grant
    Filed: April 24, 2023
    Date of Patent: December 3, 2024
    Assignee: SAMSUNG SDS CO., LTD.
    Inventors: Byung Kwan Yoo, Min Chul Shin, Se Myeong On, Myung Hee Kim, Keum Sik Im, Bo Gyu Kim, Sang Beom Shin, Hae Won Jeong, Yong Seek Choi
  • Patent number: 12161041
    Abstract: An etching device includes a chamber; a stage disposed in the chamber and on which a target substrate is loaded; a gas distribution unit disposed to face the stage in the chamber; a plurality of plasma generation modules disposed above the chamber; a gas supply unit that supplies gas into the chamber; a gas line connecting the gas supply unit and the plurality of plasma generation modules; and a plurality of gas inlet pipes each including an end connected to the plasma generation module and another end connected to the gas distribution unit.
    Type: Grant
    Filed: May 5, 2021
    Date of Patent: December 3, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dae Soo Kim, Sang Gab Kim, Yun Jong Yeo, Ju Hee Lee, Soo Beom Jo, Dae Won Choi
  • Publication number: 20240389643
    Abstract: The present invention provides an aerosol-generating article including a first aerosol-generating substrate portion, a second aerosol-generating substrate portion, and a filter portion containing nicotine, and an aerosol-generating device comprising the same, wherein the second aerosol-generating substrate portion includes an absorber impregnated with a liquid aerosol-generating composition.
    Type: Application
    Filed: August 5, 2024
    Publication date: November 28, 2024
    Applicant: KT&G CORPORATION
    Inventors: In Su PARK, Dong Kyun KO, Sang Won CHOI, Sun Hwan JUNG, Eun Mi JEOUNG
  • Patent number: 12148589
    Abstract: In an embodiment a shape-transformable switch apparatus includes a housing comprising an accommodating region with a high voltage electrode, a Electrorheological (ER) fluid located in the accommodating region, the ER fluid configured to change viscosity and rigidity, a switch cover shielding an upper portion of the housing, the switch cover configured to change a shape based on changes of the viscosity and of the rigidity of the ER fluid; and a controller configured to allow a voltage to be applied to the high voltage electrode such that an electrostatic attraction is generated so that the ER fluid flows and is pressed against the switch cover thereby changing a shape of the switch cover.
    Type: Grant
    Filed: October 21, 2022
    Date of Patent: November 19, 2024
    Assignees: Hyundai Motor Company, Kia Corporation, Korea University of Technology and Education Industry-University Cooperation Foundation
    Inventors: Yoon Im, Yong Won Choi, Myung Hoe Kim, Joo Hwa Kim, Eun Jae Shin, Hyun U Ko, Sang Youn Kim
  • Patent number: 12147606
    Abstract: A tactile stimulation providing system includes: an apparatus for generating first actuator strength values corresponding to representative values of frequency bands of first audio data and second actuator strength values corresponding to representative values of frequency bands of second audio data; and an apparatus for driving actuators, based on the first actuator strength values and the second actuator strength values, wherein a number of the actuators is smaller than a number of the first and second actuator strength values, the first audio data includes information on a first direction, the second audio data includes information on a second direction, an actuator corresponding to first position information is driven based on only at least one of the first actuator strength values, and an actuator corresponding to second position information is driven based on only at least one of the second actuator strength values.
    Type: Grant
    Filed: November 1, 2023
    Date of Patent: November 19, 2024
    Assignee: BHAPTICS INC.
    Inventors: Sang Won Choi, Ki Uk Gwak
  • Patent number: 12150342
    Abstract: A display device includes a display panel including a main portion, a first bent portion and a second bent portion each extending from the main portion, and a corner portion which connects the first bent portion and the second bent portion to each other and is bendable relative to the main portion. The corner portion which is bendable includes a plurality of protrusion patterns partially disconnected from each other and each bendable relative to the main portion, and each of the plurality of protrusion patterns including a display pixel.
    Type: Grant
    Filed: September 7, 2021
    Date of Patent: November 19, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dae Won Choi, Dong Won Kim, Sang Gab Kim, Sang Woo Kim, Gyu Jeong Lee, Sung Won Cho
  • Publication number: 20240379940
    Abstract: In the case in which a lithium metal is used in order to increase the capacity of a lithium secondary battery, reversibility of charging and discharging is reduced due to dendrite, etc. A lithium metal having LiF deposited thereon exhibits high stability, whereby reversibility of charging and discharging is increased. In addition, in the case in which LiF is deposited, the lithium metal, which is a negative electrode material, is not consumed, and the shape of a lithium metal electrode is not greatly changed.
    Type: Application
    Filed: July 24, 2024
    Publication date: November 14, 2024
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Oh-Byong CHAE, Sang-Wook WOO, Hee-Won CHOI, Eun-Kyung KIM
  • Patent number: 12137727
    Abstract: The present invention provides an aerosol-generating article including a first aerosol-generating substrate portion, a second aerosol-generating substrate portion, and a filter portion containing nicotine, and an aerosol-generating device comprising the same, wherein the second aerosol-generating substrate portion includes an absorber impregnated with a liquid aerosol-generating composition.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: November 12, 2024
    Assignee: KT&G CORPORATION
    Inventors: In Su Park, Dong Kyun Ko, Sang Won Choi, Sun Hwan Jung, Eun Mi Jeoung
  • Publication number: 20240365844
    Abstract: An aerosol generating article includes a segment, wherein the segment includes a capsule and a medium surrounding the capsule, and the capsule includes a core including a basic substance, and a shell surrounding the core.
    Type: Application
    Filed: January 11, 2023
    Publication date: November 7, 2024
    Applicant: KT&G CORPORATION
    Inventors: Hyeon Tae KIM, Sang Won CHOI
  • Publication number: 20240366968
    Abstract: The present invention relates to a cartridge that can fundamentally prevent twisting of wires when a transducer rotates infinitely, and a focused ultrasound generator including the same. According to the present disclosure, the transducer can be rotated infinitely, so a wide range of treatments can be effectively performed. Additionally, according to the present disclosure, a focused ultrasound generator capable of performing auxiliary input using a touch screen may be provided.
    Type: Application
    Filed: April 22, 2024
    Publication date: November 7, 2024
    Inventors: Kwangchon KO, Jae Won CHOI, Sang Hyun LEE
  • Publication number: 20240363832
    Abstract: One embodiment of the present invention relates to a lithium metal anode. Wherein the lithium metal anode comprises a current collector and a lithium metal thin film layer disposed on at least one surface of the current collector and having a thickness in a range of 0.1 to 200 ?m and a coating layer disposed on a surface of the lithium metal thin film layer, wherein, the coating layer comprising a Li—N—C—H—O based ionic compound.
    Type: Application
    Filed: May 13, 2024
    Publication date: October 31, 2024
    Applicants: POSCO CO., LTD, RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY
    Inventors: Jin Hong Kim, Hong-Youl Bae, Mun Kyu Cho, Nam Soon Choi, Sang-Lag Lee, Weon-Soo Bae, Yong Won Lee, Ji-Woong Moon
  • Publication number: 20240365622
    Abstract: A display device includes: a first pixel electrode comprising a first reflective electrode in a first emission area, a first light transmitting pattern on the first reflective electrode, and a first light transmitting electrode on the first reflective electrode and the first light transmitting pattern and connected to the first reflective electrode; a second pixel electrode comprising a second reflective electrode in a second emission area and a second light transmitting electrode on the second reflective electrode; a light emitting stack on the first and second pixel electrodes and comprising at least one light emitting layer; a common electrode on the light emitting stack; and a bank pattern surrounding the first and second emission areas, and having at least a portion between the first emission area and the second emission area, wherein the first light transmitting pattern and the bank pattern contain a same material and are spaced apart.
    Type: Application
    Filed: December 4, 2023
    Publication date: October 31, 2024
    Inventors: Il Ha SONG, Hyo Min KO, Sang Gyun KIM, Dae Woong LEE, Hyeon Jeong IM, Hye Won CHOI
  • Patent number: 12131978
    Abstract: The present invention improves a heat dissipation property of a semiconductor device by transferring hexagonal boron nitride (hBN) with a two-dimensional nanostructure to the semiconductor device. A semiconductor device of the present invention includes a substrate having a first surface and a second surface, a semiconductor layer formed on the first surface of the substrate, an hBN layer formed on at least one surface of the first surface and the second surface of the substrate, and a heat sink positioned on the second surface of the substrate. A radiation rate of heat generated during driving of an element is increased to decrease a reduction in lifetime of a semiconductor device due to a temperature increase. The semiconductor device has a structure and configuration which are very effective in improving a rapid temperature increase due to heat generated by high-power semiconductor devices.
    Type: Grant
    Filed: December 27, 2021
    Date of Patent: October 29, 2024
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Il Gyu Choi, Seong Il Kim, Hae Cheon Kim, Youn Sub Noh, Ho Kyun Ahn, Sang Heung Lee, Jong Won Lim, Sung Jae Chang, Hyun Wook Jung
  • Publication number: 20240353283
    Abstract: Disclosed herein is an apparatus for testing liquefied hydrogen valve that can configure the test valve to environmental conditions of a temperature below 20K by using only low-cost helium gas without using liquefied hydrogen or liquid helium as the test fluid. This helps companies developing liquefied hydrogen valves to safely and conveniently perform valve leakage and performance tests.
    Type: Application
    Filed: September 14, 2023
    Publication date: October 24, 2024
    Inventors: Chang Woo JUNG, Ji Won CHOI, Sang Min KIM, Hyung Min JUNG