Patents by Inventor Hyun Kwan Lee

Hyun Kwan Lee 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: 20240097580
    Abstract: An inverter driving apparatus includes an inverter having a plurality of legs respectively corresponding to each of a plurality of phases and the control unit generating space vector modulation signals based on a phase voltage command, each of the space vector modulation signals corresponding to each of the plurality of phases, respectively, determining whether an output voltage of the inverter corresponding to at least one space vector modulation signal of the space vector modulation is in a non-linear region by determining whether each voltage of the space vector modulation signals is included in a predetermined range, generating a terminal voltage command by determining whether or not to apply an offset voltage to each of the space vector modulation signals based on the determination of the non-linear region, and controlling a turn-on state of at least one switch included in each of the plurality of legs by modulating the terminal voltage command based on pulse width modulation.
    Type: Application
    Filed: November 11, 2022
    Publication date: March 21, 2024
    Applicants: Hyundai Motor Company, Kia Corporation
    Inventors: Hyun Jae LIM, Yong Jae LEE, Young Ho CHAE, Young Kwan KO, Young Gi LEE
  • Patent number: 11932549
    Abstract: It is introduced that a device of manufacturing lithium sulfate comprising: a reaction body in which a reaction of lithium phosphate and sulfuric acid is performed, the reaction body being divided into an upper space and a lower space; a pressurizer for applying pressure to the inside of the reaction body; a stirrer disposed in the upper space for stirring the lithium phosphate and sulfuric acid to produce a mixture containing lithium sulfate and phosphoric acid; and a filter disposed inside the reaction body and separating the filtrate containing the phosphoric acid into the lower space by filtering the mixture.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: March 19, 2024
    Assignees: POSCO CO., LTD, RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY
    Inventors: Juyoung Kim, Ki Young Kim, Woonkyoung Park, Jung Kwan Park, Woo Chul Jung, Kwang Seok Park, Hyun Woo Lee, Sang Won Kim, Heok Yang, Seung Taek Kuk
  • Patent number: 11935943
    Abstract: A method of manufacturing a semiconductor device, the method including: forming, in a first region of a substrate, an active fin and a sacrificial gate structure intersecting the active fin; forming a first spacer and a second spacer on the substrate to cover the sacrificial gate structure; forming a mask in a second region of the substrate to expose the first region of the substrate; removing the second spacer from the first spacer in the first region of the substrate by using the mask; forming recesses at opposite sides of the sacrificial gate structure by removing portions of the active fin; forming a source and a drain in the recesses; and forming an etch-stop layer to cover both sidewalls of the sacrificial gate structure and a top surfaces of the source and drain.
    Type: Grant
    Filed: January 10, 2022
    Date of Patent: March 19, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyun Kwan Yu, Seung Hun Lee, Yang Xu
  • Publication number: 20240081001
    Abstract: A display device includes a display panel having a folding axis extending in a first direction; and a panel supporter disposed on a surface of the display panel. The panel supporter includes a first layer including a first base resin and first fiber yarns extending in the first direction and dispersed in the first base resin, a second layer disposed on the first layer, the second layer including a second base resin and second fiber yarns extending in a second direction intersecting the first direction and dispersed in the second base resin, and a third layer disposed on the second layer, the third layer including a third base resin and third fiber yarns extending in the first direction and dispersed in the third base resin.
    Type: Application
    Filed: May 1, 2023
    Publication date: March 7, 2024
    Applicant: Samsung Display Co., LTD.
    Inventors: Soh Ra HAN, Yong Hyuck LEE, Hong Kwan LEE, Hyun Jun CHO, Min Ji KIM, Sung Woo EO, Eun Gil CHOI, Sang Woo HAN
  • Publication number: 20240075110
    Abstract: The present invention provides a method for preventing or treating a liver disease selected from the group consisting of non-alcoholic fatty liver, non-alcoholic steatohepatitis and hepatic fibrosis comprising administrating at least one selected from the group consisting of an Ssu72 peptide, a polynucleotide encoding the Ssu72 peptide, and an expression vector comprising the polynucleotide.
    Type: Application
    Filed: September 15, 2023
    Publication date: March 7, 2024
    Inventors: Chang Woo LEE, Jin Kwan LEE, Hyun Soo KIM, Ji Hyun CHOI, Se Eun BYEON, HAE IN LEE, HYEONJU JO
  • Patent number: 11918632
    Abstract: The present invention provides a method for preventing or treating liver cancer in a subject comprising administrating at least one selected from the group consisting of an Ssu72 peptide, a polynucleotide encoding the Ssu72 peptide and an expression vector containing the polynucleotide to the subject.
    Type: Grant
    Filed: July 25, 2022
    Date of Patent: March 5, 2024
    Assignees: CUROGEN TECHNOLOGY CO., LTD., RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Chang Woo Lee, Jin Kwan Lee, Hyun Soo Kim, Jae-kyung Kim, Joon Sup Yoon
  • Patent number: 11877373
    Abstract: A cooking apparatus and a control method thereof, and more particularly, technology for determining the type of vessel placed in the cooking apparatus and controlling power in response to a state change of the placed vessel or a temperature change of a coil. In accordance with one aspect, a cooking apparatus includes: a coil on which a vessel is placed, configured to form a magnetic field upon application of a current; a detection sensor configured to detect a magnitude of an input current applied differently according to a type of the vessel and a magnitude of an input voltage of the cooking apparatus; and a controller configured to determine a type of the placed vessel according to a power value calculated based on the detected input current and input voltage, and to determine a heating mode of the cooking apparatus based on the determined type of vessel.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: January 16, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ji Woong Choi, Sang Min Park, Byoung Kuk Lee, Eun Soo Jang, Dong Myoung Joo, Hong-Joo Kang, Nam Ju Park, Chang Sun Yun, Hyun Kwan Lee
  • Patent number: 11622422
    Abstract: The present disclosure relates to a cooking apparatus and a method of controlling the same, and more particularly, to a technology for reducing stress caused by a current flowing through a diode included in the cooking apparatus.
    Type: Grant
    Filed: November 22, 2018
    Date of Patent: April 4, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Nam Ju Park, Ji Woong Choi, Hyun Kwan Lee
  • Publication number: 20210267024
    Abstract: A cooking apparatus and a control method thereof, and more particularly, technology for determining the type of vessel placed in the cooking apparatus and controlling power in response to a state change of the placed vessel or a temperature change of a coil. In accordance with one aspect, a cooking apparatus includes: a coil on which a vessel is placed, configured to form a magnetic field upon application of a current; a detection sensor configured to detect a magnitude of an input current applied differently according to a type of the vessel and a magnitude of an input voltage of the cooking apparatus; and a controller configured to determine a type of the placed vessel according to a power value calculated based on the detected input current and input voltage, and to determine a heating mode of the cooking apparatus based on the determined type of vessel.
    Type: Application
    Filed: May 24, 2019
    Publication date: August 26, 2021
    Applicants: SAMSUNG ELECTRONICS CO., LTD., RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Ji Woong CHOI, Sang Min PARK, Byoung Kuk LEE, Eun Soo JANG, Dong Myoung JOO, Hong-Joo KANG, Nam Ju PARK, Chang Sun YUN, Hyun Kwan LEE
  • Patent number: 10883723
    Abstract: An induction heating cooker includes at least one burner including a coil; a handling portion provided in a predetermined area separated from the burner, and including an input section for receiving a user's control and a first display for displaying information corresponding to the user's control; at least one second display provided in an area separated from the handling portion; and a controller configured to control the second display to display cooking information about the burner.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: January 5, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang-Sun Yun, Hong-joo Kang, Dong-Oh Kang, Hee-joon Kang, Byung-hwan Ko, Hyun-kwan Lee
  • Publication number: 20200374988
    Abstract: The present disclosure relates to a cooking apparatus and a method of controlling the same, and more particularly, to a technology for reducing stress caused by a current flowing through a diode included in the cooking apparatus.
    Type: Application
    Filed: November 22, 2018
    Publication date: November 26, 2020
    Inventors: Nam Ju PARK, Ji Woong CHOI, Hyun Kwan LEE
  • Publication number: 20190195508
    Abstract: Disclosed is an induction heating cooker comprising: at least one burner comprising a coil; a handling portion provided in a predetermined area separated from the burner, and comprising an input section for receiving a user's control and a first display for displaying information corresponding to the user's control; at least one second display provided in an area separated from the handling portion; and a controller configured to control the second display to display cooking information about the burner.
    Type: Application
    Filed: April 20, 2018
    Publication date: June 27, 2019
    Inventors: Chang-sun YUN, Hong-joo KANG, Dong-oh KANG, Hee-joon KANG, Byung-hwan KO, Hyun-kwan LEE
  • Patent number: 9510230
    Abstract: A method for a Mobility Management Entity (MME) to control a connection of a User Equipment (UE) in a mobile communication system is provided. The method includes a first standby method including an MME in a wireless communication system that includes predicting an overload durating time when an overload duration time that is predicted, transmitting to an enhanced Node B (eNodeB) information on the reconnection method of the UE that is decided, wherein the plurality of reconnection methods represent methods for the UE attempting reconnection with the MME after a second standby time that is longer than the first standby time, and an MME reselection method for the UE attempting the reconnection with an MME which is different from the MME.
    Type: Grant
    Filed: October 4, 2012
    Date of Patent: November 29, 2016
    Assignees: Samsung Electronics Co., Ltd., Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Sang-Soo Jeong, Song-Yean Cho, Seong-Lyun Kim, Beom-Sik Bae, Sang-Hoon Lee, Hyun-Kwan Lee, Beom-Hee Lee, Min-Cheol Kim
  • Publication number: 20140313889
    Abstract: A method for a Mobility Management Entity (MME) to control a connection of a User Equipment (UE) in a mobile communication system is provided. The method includes a first standby method including an MME in a wireless communication system that includes predicting an overload durating time when an overload duration time that is predicted, transmitting to an enhanced Node B (eNodeB) information on the reconnection method of the UE that is decided, wherein the plurality of reconnection methods represent methods for the UE attempting reconnection with the MME after a second standby time that is longer than the first standby time, and an MME reselection method for the UE attempting the reconnection with an MME which is different from the MME.
    Type: Application
    Filed: October 4, 2012
    Publication date: October 23, 2014
    Applicant: Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Sang-Soo Jeong, Song-Yean Cho, Seong-Lyun Kim, Beom-Sik Bae, Sang-Hoon Lee, Hyun-Kwan Lee, Beom-Hee Lee, Min-Cheol Kim
  • Patent number: 8588124
    Abstract: Disclosed is a method for data communication in a radio network, including calculating an expected value of transmission efficiency of a Carrier Sense Multiple Access/Collision Avoidance (CSMA/CA) protocol and an expected value of transmission efficiency of a Slotted ALOHA protocol, comparing the two expected values, switching a mode into the mode of the protocol having the larger expected value from among the expected value of transmission efficiency of the CSMA/CA protocol and the expected value of transmission efficiency of Slotted ALOHA protocol, and broadcasting, to stations (STAs), a message for indicating the STAs to switch a protocol into the protocol having the larger expected value of transmission efficiency, and transmitting data by using the protocol having the larger expected value of transmission efficiency.
    Type: Grant
    Filed: January 6, 2010
    Date of Patent: November 19, 2013
    Assignees: LG Electronics Inc., Industry-Academic Corporation Foundation, Yonsei University
    Inventors: Jun Ho Jo, Seong Lyun Kim, Hyun Kwan Lee, Yong Ho Seok
  • Publication number: 20110268012
    Abstract: Disclosed is a method for data communication in a radio network, including calculating an expected value of transmission efficiency of a Carrier Sense Multiple Access/Collision Avoidance (CSMA/CA) protocol and an expected value of transmission efficiency of a Slotted ALOHA protocol, comparing the two expected values, switching a mode into the mode of the protocol having the larger expected value from among the expected value of transmission efficiency of the CSMA/CA protocol and the expected value of transmission efficiency of Slotted ALOHA protocol, and broadcasting, to stations (STAs), a message for indicating the STAs to switch a protocol into the protocol having the larger expected value of transmission efficiency, and transmitting data by using the protocol having the larger expected value of transmission efficiency.
    Type: Application
    Filed: January 6, 2010
    Publication date: November 3, 2011
    Inventors: Jun Ho Jo, Seong Lyun Kim, Hyun Kwan Lee, Yong Ho Seok
  • Patent number: 6292182
    Abstract: A circuit for driving a LCM, comprising: a power supply portion for receiving an external voltage of 12V to generate internal voltages of 3.
    Type: Grant
    Filed: June 25, 1998
    Date of Patent: September 18, 2001
    Assignee: Hyundai Electronics Industries Co., Ltd.
    Inventors: Jin San Park, Soo Woong Hwang, Hyun Kwan Lee