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).
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Publication number: 20240097580Abstract: 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: ApplicationFiled: November 11, 2022Publication date: March 21, 2024Applicants: Hyundai Motor Company, Kia CorporationInventors: Hyun Jae LIM, Yong Jae LEE, Young Ho CHAE, Young Kwan KO, Young Gi LEE
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Patent number: 11932549Abstract: 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: GrantFiled: August 2, 2019Date of Patent: March 19, 2024Assignees: POSCO CO., LTD, RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGYInventors: 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
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Patent number: 11935943Abstract: 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: GrantFiled: January 10, 2022Date of Patent: March 19, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hyun Kwan Yu, Seung Hun Lee, Yang Xu
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Publication number: 20240081001Abstract: 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: ApplicationFiled: May 1, 2023Publication date: March 7, 2024Applicant: 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
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Publication number: 20240075110Abstract: 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: ApplicationFiled: September 15, 2023Publication date: March 7, 2024Inventors: Chang Woo LEE, Jin Kwan LEE, Hyun Soo KIM, Ji Hyun CHOI, Se Eun BYEON, HAE IN LEE, HYEONJU JO
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Patent number: 11918632Abstract: 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: GrantFiled: July 25, 2022Date of Patent: March 5, 2024Assignees: CUROGEN TECHNOLOGY CO., LTD., RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITYInventors: Chang Woo Lee, Jin Kwan Lee, Hyun Soo Kim, Jae-kyung Kim, Joon Sup Yoon
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Patent number: 11877373Abstract: 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: GrantFiled: May 24, 2019Date of Patent: January 16, 2024Assignee: 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
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Patent number: 11622422Abstract: 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: GrantFiled: November 22, 2018Date of Patent: April 4, 2023Assignee: Samsung Electronics Co., Ltd.Inventors: Nam Ju Park, Ji Woong Choi, Hyun Kwan Lee
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Publication number: 20210267024Abstract: 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: ApplicationFiled: May 24, 2019Publication date: August 26, 2021Applicants: SAMSUNG ELECTRONICS CO., LTD., RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITYInventors: 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
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Patent number: 10883723Abstract: 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: GrantFiled: April 20, 2018Date of Patent: January 5, 2021Assignee: Samsung Electronics Co., Ltd.Inventors: Chang-Sun Yun, Hong-joo Kang, Dong-Oh Kang, Hee-joon Kang, Byung-hwan Ko, Hyun-kwan Lee
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Publication number: 20200374988Abstract: 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: ApplicationFiled: November 22, 2018Publication date: November 26, 2020Inventors: Nam Ju PARK, Ji Woong CHOI, Hyun Kwan LEE
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Publication number: 20190195508Abstract: 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: ApplicationFiled: April 20, 2018Publication date: June 27, 2019Inventors: Chang-sun YUN, Hong-joo KANG, Dong-oh KANG, Hee-joon KANG, Byung-hwan KO, Hyun-kwan LEE
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Patent number: 9510230Abstract: 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: GrantFiled: October 4, 2012Date of Patent: November 29, 2016Assignees: Samsung Electronics Co., Ltd., Industry-Academic Cooperation Foundation, Yonsei UniversityInventors: Sang-Soo Jeong, Song-Yean Cho, Seong-Lyun Kim, Beom-Sik Bae, Sang-Hoon Lee, Hyun-Kwan Lee, Beom-Hee Lee, Min-Cheol Kim
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Publication number: 20140313889Abstract: 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: ApplicationFiled: October 4, 2012Publication date: October 23, 2014Applicant: Industry-Academic Cooperation Foundation, Yonsei UniversityInventors: Sang-Soo Jeong, Song-Yean Cho, Seong-Lyun Kim, Beom-Sik Bae, Sang-Hoon Lee, Hyun-Kwan Lee, Beom-Hee Lee, Min-Cheol Kim
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Patent number: 8588124Abstract: 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: GrantFiled: January 6, 2010Date of Patent: November 19, 2013Assignees: LG Electronics Inc., Industry-Academic Corporation Foundation, Yonsei UniversityInventors: Jun Ho Jo, Seong Lyun Kim, Hyun Kwan Lee, Yong Ho Seok
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Publication number: 20110268012Abstract: 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: ApplicationFiled: January 6, 2010Publication date: November 3, 2011Inventors: Jun Ho Jo, Seong Lyun Kim, Hyun Kwan Lee, Yong Ho Seok
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Patent number: 6292182Abstract: 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: GrantFiled: June 25, 1998Date of Patent: September 18, 2001Assignee: Hyundai Electronics Industries Co., Ltd.Inventors: Jin San Park, Soo Woong Hwang, Hyun Kwan Lee