Patents by Inventor Hyung Woo Choi

Hyung Woo 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: 20250054437
    Abstract: A pixel according to embodiments of the present inventive concept includes a first transistor having a gate electrode connected to a first node; a light emitting element connected between the second electrode of the first transistor and a second power source line; a second transistor connected between the first node and a data line; a third transistor connected between the first electrode of the first transistor and a second node; a fourth transistor connected between the first power source line and the second node; and a first capacitor connected between the first node and the second node, and a reference power source and a voltage of a data signal are sequentially supplied to the data line during a horizontal period.
    Type: Application
    Filed: July 31, 2024
    Publication date: February 13, 2025
    Inventors: Ji Young LEE, So Hae KIM, Ji Song CHAE, Sang Gu LEE, Yong Woo LEE, Hyung Uk CHO, Hyun Young CHOI
  • Patent number: 12219810
    Abstract: The display device includes a substrate including a plurality of pixel areas; and a pixel in each of the plurality of pixel areas. The pixel may include a pixel circuit layer on the substrate and including at least one transistor; a first electrode on the pixel circuit layer and electrically connected to the transistor; a plurality of light emitting elements on the first electrode and electrically connected to the first electrode; a second electrode on the plurality of light emitting elements; and a light blocking pattern on the second electrode and including a plurality of openings corresponding to each of the plurality of light emitting elements. Here, each of the plurality of pixel areas may include an emission area corresponding to each of the plurality of openings and a non-emission area excluding the emission area.
    Type: Grant
    Filed: November 8, 2021
    Date of Patent: February 4, 2025
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin Woo Choi, Min Woo Kim, Sung Kook Park, Dae Ho Song, Byung Choon Yang, Hyung Il Jeon
  • Patent number: 12203402
    Abstract: The present invention provides method and apparatus for purifying exhaust gas of a vessel and a vessel including the same, in which a risk for a vessel and crew of being exposed to ammonia gas used to collect carbon dioxide included in exhaust gas emitted from a vessel may be minimized and an ammonia solution may be recycled and reused to collect carbon dioxide, in order to satisfy regulations on discharge of exhaust gas by the IMO. Also, the present invention provides an apparatus 1000 for purifying exhaust gas of a vessel and a method of purifying exhaust gas of a vessel using the same, in which carbon dioxide and sulfur dioxide included in exhaust gas emitted from a vessel may be collected by using a reaction solution and may be changed into a substance that does not affect the environment so as to be stored and transported to land.
    Type: Grant
    Filed: December 21, 2021
    Date of Patent: January 21, 2025
    Assignees: HANWHA OCEAN CO., LTD., HI AIR KOREA
    Inventors: Keun Bae Kim, Gwang Hyun Lee, Hyung Ju Roh, Min Woo Lee, Won Kyeong Son, Byung Tak Nam, So Young Choi, Seung Min Jeon
  • Publication number: 20240399410
    Abstract: A slurry supply device includes a slurry tank for storing slurry; a temperature controller for supplying hot or cold water to the slurry tank to control the temperature of the slurry; and a double pipe for supplying the slurry to the slurry tank while being connected to the slurry tank and for allowing hot or cold water to move to control the temperature of the slurry.
    Type: Application
    Filed: September 30, 2022
    Publication date: December 5, 2024
    Applicant: LG Energy Solution, Ltd.
    Inventors: Hyung-Woo Choi, Sung-Mo Kang, Sang-Min Kim, Kyoung-Rok Mun, Jong-Goo Park, Jong-Woo Shin, Do-Young Ahn, Jae-Pil Lee, Shin-wook Jeon, Sang-Hoon Choy
  • Patent number: 11817174
    Abstract: A spatial disturbance that occurs when an access is concentrated in a specific memory area in a volatile semiconductor memory like DRAM is properly solved by a memory controller. The memory controller includes a concentration access detection part generating a concentration access detection signal when an address for accessing a specific memory area among memory areas of volatile semiconductor memory is concentratedly received. In the case that the concentration access detection signal is generated, the memory controller includes a controller for easing or preventing corruption of data which memory cells of the specific memory area and/or memory cells of memory areas adjacent to the specific memory area hold.
    Type: Grant
    Filed: May 5, 2021
    Date of Patent: November 14, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyo Min Sohn, Dong Su Lee, Young Jin Cho, Hyung Woo Choi
  • Publication number: 20220080411
    Abstract: Disclosed herein is a technique for bonding chips made of plastic materials by taking advantage of a photothermal effect of a graphene-copper sulfide composite. Using a photothermal adhesive composition containing the composite, microfluidic chips that pass fluids therethrough with neither leakage nor deformation can be effectively fabricated.
    Type: Application
    Filed: January 13, 2021
    Publication date: March 17, 2022
    Inventors: Bong Geun CHUNG, Jae Hyun LIM, Young Jae KIM, Jong Min LEE, Hyung Woo CHOI
  • Publication number: 20210272612
    Abstract: A spatial disturbance that occurs when an access is concentrated in a specific memory area in a volatile semiconductor memory like DRAM is properly solved by a memory controller. The memory controller includes a concentration access detection part generating a concentration access detection signal when an address for accessing a specific memory area among memory areas of volatile semiconductor memory is concentratedly received. In the case that the concentration access detection signal is generated, the memory controller includes a controller for easing or preventing corruption of data which memory cells of the specific memory area and/or memory cells of memory areas adjacent to the specific memory area hold.
    Type: Application
    Filed: May 5, 2021
    Publication date: September 2, 2021
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Kyo Min Sohn, Dong Su Lee, Young Jin Cho, Hyung Woo Choi
  • Patent number: 11024352
    Abstract: A spatial disturbance that occurs when an access is concentrated in a specific memory area in a volatile semiconductor memory like DRAM is properly solved by a memory controller. The memory controller includes a concentration access detection part generating a concentration access detection signal when an address for accessing a specific memory area among memory areas of volatile semiconductor memory is concentratedly received. In the case that the concentration access detection signal is generated, the memory controller includes a controller for easing or preventing corruption of data which memory cells of the specific memory area and/or memory cells of memory areas adjacent to the specific memory area hold.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: June 1, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyo Min Sohn, Dong Su Lee, Young Jin Cho, Hyung Woo Choi
  • Publication number: 20210032584
    Abstract: The present disclosure provides a blood vessel-mimicking microfluidic chip for cell co-culture and a use thereof, wherein the microfluidic chip of the present disclosure is a microfluidic chip capable of co-culturing vascular endothelial cells and cancer cells, and can mimic normal vascular tissue, cancer tissue, and cancer-metastatic vascular tissue, and therefore can be widely used in studies associated with cancer, and especially, is suitable in studies on cancer metastasis, intravenous injection environments for cancer treatment, photothermal therapeutic effects on cancer cell, and the like.
    Type: Application
    Filed: October 29, 2019
    Publication date: February 4, 2021
    Inventors: Bong Geun CHUNG, Seok Gyu MUN, Jong Min LEE, Hyung Woo CHOI, Jae Hyun LIM, Eun Joong KIM
  • Publication number: 20200219072
    Abstract: The present disclosure proposes a server that supports payments of a plurality of users. The server may acquire first payment information from a first terminal, request a payment server to process a first payment, deliver sales information and payment status information to a shop terminal and terminals of the remaining users, deliver the payment status information to the first terminal, acquire second payment information from a second terminal, request the payment server to process a second payment, deliver updated payment status information to the terminals, deliver a first notification indicating that the payment of the total amount has been completed to the shop terminal, acquire a second notification indicating confirmation of the payment completion from the shop terminal, and deliver a third notification indicating confirmation of the payment completion to the terminals of the plurality of users.
    Type: Application
    Filed: January 3, 2020
    Publication date: July 9, 2020
    Inventors: Jun Won KO, Ji Won OH, Dong Jo KOH, Yeon Joo PARK, Yu Kyung CHOI, Dong Hyuk SHIN, Yoo Kyung PARK, Hyung Woo CHOI
  • Patent number: 10529395
    Abstract: A memory cell array may include a normal cell array and a spare cell array, the normal cell array having a plurality of normal memory cells connected to normal lines and the spare memory cell array having a plurality of spare memory cells connected to spare lines configured to replace a failed normal memory cell with a spare memory cell. A spare line address encoding circuit may be configured to generate a spare line address which encodes spare line enable signals being applied when a spare line replacing a normal line is activated to indicate a physical location of the spare line being activated. A spare line adjacent address generator may be configured to generate spare line adjacent address based on the spare line address, and to activate spare lines physically adjacent to the activated spare line.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: January 7, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyo Min Sohn, Dong Su Lee, Young Jin Cho, Hyung Woo Choi
  • Patent number: 10301332
    Abstract: Provided is a method of controlling release of nitric oxide, and more particularly, to a method of selectively releasing nitric oxide depending on a change in pH using calcium phosphate. The method of selectively releasing nitric oxide according to the present invention may stably deliver nitric oxide to a desired site, and induce release of nitric oxide by a change in pH, thereby making it possible to improve a therapeutic effect while preventing a loss of nitric oxide.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: May 28, 2019
    Assignees: Institute for Basic Science, Postech Academy-Industry Foundation
    Inventors: Won Jong Kim, Jihoon Kim, Hyung Woo Choi
  • Publication number: 20180112326
    Abstract: Disclosed herein are embodiments of systems and methods for making silicon substrates. The disclosed systems use a unique combination of induction heating and crucible materials to produce silicon substrates in short time periods. The disclosed methods are cost-efficient and time-efficient and can be used to obtain pure silicon substrates having a desirable thinness for commercial use.
    Type: Application
    Filed: March 25, 2016
    Publication date: April 26, 2018
    Applicant: Board of Regents of the Nevada System of Higher Education, on behalf of the University of Nevada,
    Inventors: Ghassan Jabbour, Hyung Woo Choi, Dhanesh Chandra, Mo Masoumi Danyan
  • Publication number: 20180075889
    Abstract: A memory cell array may include a normal cell array and a spare cell array, the normal cell array having a plurality of normal memory cells connected to normal lines and the spare memory cell array having a plurality of spare memory cells connected to spare lines configured to replace a failed normal memory cell with a spare memory cell. A spare line address encoding circuit may be configured to generate a spare line address which encodes spare line enable signals being applied when a spare line replacing a normal line is activated to indicate a physical location of the spare line being activated. A spare line adjacent address generator may be configured to generate spare line adjacent address based on the spare line address, and to activate spare lines physically adjacent to the activated spare line.
    Type: Application
    Filed: November 14, 2017
    Publication date: March 15, 2018
    Inventors: Kyo Min Sohn, Dong Su Lee, Young Jin Cho, Hyung Woo Choi
  • Publication number: 20170145040
    Abstract: Provided is a method of controlling release of nitric oxide, and more particularly, to a method of selectively releasing nitric oxide depending on a change in pH using calcium phosphate. The method of selectively releasing nitric oxide according to the present invention may stably deliver nitric oxide to a desired site, and induce release of nitric oxide by a change in pH, thereby making it possible to improve a therapeutic effect while preventing a loss of nitric oxide.
    Type: Application
    Filed: November 22, 2016
    Publication date: May 25, 2017
    Inventors: Won Jong KIM, Jihoon KIM, Hyung Woo CHOI
  • Publication number: 20130268727
    Abstract: A spatial disturbance that occurs when an access is concentrated in a specific memory area in a volatile semiconductor memory like DRAM is properly solved by a memory controller. The memory controller includes a concentration access detection part generating a concentration access detection signal when an address for accessing a specific memory area among memory areas of volatile semiconductor memory is concentrically received. In the case that the concentration access detection signal is generated, the memory controller includes a controller for easing or preventing corruption of data which memory cells of the specific memory area and/or memory cells of memory areas adjacent to the specific memory area hold.
    Type: Application
    Filed: March 15, 2013
    Publication date: October 10, 2013
    Inventors: Kyo Min Sohn, Dong Su Lee, Young Jin Cho, Hyung Woo Choi