Patents by Inventor Sang Kyu Lee

Sang Kyu 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).

  • Patent number: 11225239
    Abstract: A hybrid vehicle may include an engine controller that determines an activation state of an oxygen sensor when the engine controller is requested to operate an engine and controls a voltage applied to the oxygen sensor depending on whether or not the oxygen sensor is in an activated state, and a vehicle controller that controls a voltage of a battery of the hybrid vehicle and applies the voltage of the battery to the engine controller. The engine controller outputs an activation demand signal for the oxygen sensor to be activated to the vehicle controller when it is determined that the oxygen sensor is not in the activated state.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: January 18, 2022
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Hyun Mo Ahn, Sang Yoon Shin, Jae Yui Kim, Yun Chan Heo, Min Kyu Lee
  • Publication number: 20220013773
    Abstract: The present invention relates to a lithium compound, a nickel-based cathode active material, a method for preparing lithium oxide, a method for preparing a nickel-based cathode active material, and a secondary battery using same. The lithium compound includes primary particles of Li2O having an average particle diameter (D50) of less than or equal to 5 ?m; and secondary particles composed of the primary particles.
    Type: Application
    Filed: October 11, 2019
    Publication date: January 13, 2022
    Inventors: Jae Myung Lee, Jun-Kyu Ahn, Sang Won Kim, Heok Yang
  • Patent number: 11221374
    Abstract: A method for checking defects in a lithium ion secondary battery includes primarily charging and degassing the lithium ion secondary battery after manufacture of the secondary battery, secondarily charging and discharging the secondary battery and then measuring one or more of OCVs and IRs of lithium ion secondary battery cells; pressurizing and aging the secondary battery by aging the secondary battery in a state in which a pressure of a designated magnitude or more is applied to the secondary battery, and checking whether or not the secondary battery cells are defective by re-measuring the one or more of OCVs and IRs of the secondary battery cells and then comparing the re-measured one or more of the OCVs and the IRs to the previously measured one or more of the OCVs and the IRs.
    Type: Grant
    Filed: April 1, 2020
    Date of Patent: January 11, 2022
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Sang Mok Park, Young Woo Lee, Ik Kyu Kim, Sung Ho Ban, Yoon Ji Lee, Jung Young Cho
  • Publication number: 20220005793
    Abstract: A semiconductor package is provided. The semiconductor package includes a first substrate, a first semiconductor chip disposed on the first substrate, a heat sink structure comprising a lower heat sink pattern disposed on the first semiconductor chip, a metal film pattern disposed on the lower heat sink pattern, and an insulating film disposed on side walls of the lower heat sink pattern and side walls of the metal film pattern, an interposer disposed on the heat sink structure, and a solder ball which connects the heat sink structure and the interposer.
    Type: Application
    Filed: January 22, 2021
    Publication date: January 6, 2022
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Myung Sam KANG, Sang Kyu Lee, Jin Gu Kim, Yong Koon Lee
  • Publication number: 20220002362
    Abstract: Provided is a CRY2 variant in which E279 and/or E281 having a negative charge in a N277SEGE281 sequence of SEQ ID NO: 1 is substituted with any one selected from the neutral amino acid group of alanine (A), isoleucine (I), leucine (L), valine (V), phenylalanine (F), methionine (M) and tryptophan (W), or in which S278 or G280 of a N277SEGE281 sequence of SEQ ID NO: 1 is substituted with any one selected from the bulky amino acid group of tryptophan (W) and phenylalanine (F).
    Type: Application
    Filed: November 13, 2019
    Publication date: January 6, 2022
    Inventors: Wondo HEO, Sungsoo KIM, Sang Kyu LEE, Taeyoon KYUNG
  • Patent number: 11215094
    Abstract: A sooty smoke filter regeneration control system of a hybrid vehicle, includes an engine, a sooty smoke filter installed in an exhaust line through which exhaust gas from the engine passes, and filtering out sooty smoke included in the exhaust gas; a temperature sensor installed in the front end of the sooty smoke filter, and measuring a temperature of exhaust gas flowing into the front end of the sooty smoke filter; an engine controller controlling a temperature of exhaust gas flowing into the sooty smoke filter and to control fuel injection of the engine, based on information associated with a grade of a road on which a vehicle is to drive; and a hybrid control unit controlling an engine clutch disposed between the engine and a motor that assists the engine in association with engine output, in response to a request from the engine controller.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: January 4, 2022
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Yun Chan Heo, Sang Yoon Shin, Jae Yui Kim, Hyun Mo Ahn, Min Kyu Lee
  • Publication number: 20210405116
    Abstract: A charging system includes a charger, a battery charged by receiving a power of a first voltage from the charger, a multi-charge configured to boost a power of a second voltage lower than the first voltage to the first voltage and supply the boosted power to the battery, a charge relay connected at a position between the battery and the charger and configured to be switched to be in an ON state when the power of the first voltage is supplied from the charger and to be in an OFF state when the power of the second voltage is supplied from the charger, and a charging controller configured to control, based on whether a melting fault of the charge relay occurs, whether to supply the power of the first voltage to the battery through the charge relay or to supply the battery with the power through the multi-charge device.
    Type: Application
    Filed: November 10, 2020
    Publication date: December 30, 2021
    Inventors: Sang Kyu LEE, Young Chan BYUN
  • Publication number: 20210396770
    Abstract: Artificial blood for a bloodstain pattern analysis includes water, an amino acid solution, bovine serum albumin, hemoglobin from bovine blood, potassium ferricyanide, sodium hyaluronate, sodium chloride, and tar color.
    Type: Application
    Filed: October 22, 2020
    Publication date: December 23, 2021
    Inventors: Sang Yoon LEE, Young Il SEO, Dong A LIM, Kyung Mi KIM, Eun Ah JOO, Je Hyun LEE, Ki Hwan KIM, Jin Pyo KIM, Jae Mo GOH, Nam Kyu PARK, Se Hyun SHIN
  • Patent number: 11202511
    Abstract: The present invention relates to a seat lock including: a fixed bracket fixed to a leg of a chair; a locking unit disposed on the fixed bracket; and a movable bracket fixed to a seat of the chair in such a manner as to rotate together with the seat and having a seat rotation shaft and a locking piece coupled to an end periphery of the seat rotation shaft in such a manner as to be exposed to the outside, wherein the locking unit includes a driving motor having a driving shaft, a driving cam fitted to the driving shaft of the driving motor, and a latch rotating in a range of a given angle around a shaft fixed to the fixed bracket to limit the rotational movement of the locking piece. According to the present invention, the seat lock can utilize the locking unit to allow the seat to be more efficiently managed.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: December 21, 2021
    Inventors: Sang Kyu Kim, Jang Soo Kim, Young Su No, Hyun Jong Baek, Geum Sang Yoo, Sang Heon Lee, Ja Bin Lee, Young Wook Choi, Matthew Han, Seo Hee Kim, Ok Sun Kim, Dong Jin Lee, Chang Moo Heo, Jin Chul Kim, Man Soon Lim
  • Patent number: 11203152
    Abstract: A nozzle assembly comprising a housing, a nozzle disposed in the housing and connected to an ink supply part, a first coil, which is disposed in the housing, for generating a magnetic field when a power source is applied, a second coil disposed in the housing, disposed so as to surround the nozzle and the first coil and generating a magnetic field when a power source is applied, provided that at least one of the magnetic field effective area and the magnetic field intensity is different from that of the first coil, and a lift part for lifting the nozzle and the first and second coils, respectively, so as to be positioned in the housing or exposed to the outside of the housing.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: December 21, 2021
    Inventors: Choong Man Bae, Sang Bum Ahn, Jin Kyu Lee
  • Publication number: 20210347277
    Abstract: An OBC controller for vehicle, a system including the same, and a method thereof are provided. The OBC controller includes a measurement device that measures a voltage of each phase of a three-phase OBC and a controller that calculates an impedance of each phase using a voltage of each phase. The voltage is measured before charging of the three-phase OBC starts. The controller also calculates a charging amount for each phase, the charging amount corresponding to the impedance of each phase, and adjusts charging based on the calculated charging amount for each phase.
    Type: Application
    Filed: September 28, 2020
    Publication date: November 11, 2021
    Inventors: Sang Kyu Lee, Jin Gyu Lim, Seung Myun Chung
  • Publication number: 20210328444
    Abstract: A safety charging system includes: a motor and an inverter which boost a voltage charged from a high-speed battery charger to a high voltage battery; a current variation amount sensor configured to detect variation amount of a current flowing in a motor coil from the high-speed battery charger; and a controller configured to determine that a rotor of the motor rotates when the variation amount of the current detected in the current variation amount sensor is greater than a reference value and perform control of interrupting a charging process.
    Type: Application
    Filed: September 29, 2020
    Publication date: October 21, 2021
    Inventors: Sang Kyu Lee, Young Chan Byun, Jeong Won Rho
  • Publication number: 20210316630
    Abstract: A charging system for a vehicle and a battery charging stop method thereof may provide a charging system for a vehicle and a battery charging stop method thereof, which may stop the charging of a battery upon failure of a current sensor applied to a three-phase coils of a motor configured for driving a vehicle, preventing the occurrence of the torque caused by operation of the motor.
    Type: Application
    Filed: December 9, 2020
    Publication date: October 14, 2021
    Applicants: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Sang Kyu LEE, Jin Gyu LIM, Seung Myun CHUNG
  • Patent number: 11135926
    Abstract: A system and method for controlling charging of plug-in vehicle are provided to charge a high-voltage battery mounted in the vehicle by converting AC power into DC power using an OBC. The method includes determining whether the high-voltage battery is charged by the operation of the OBC and whether the temperature of the high-voltage battery is greater than a predetermined reference cooling temperature while the high-voltage battery is charged to determine whether to cool the high-voltage battery. Additionally, whether the temperature of the high-voltage battery is greater than a predetermined failure determination temperature is determined to determine whether the high-voltage battery is abnormal when the temperature of the high-voltage battery is greater than the reference cooling temperature. A battery cooling fan mounted in the vehicle is maximally driven to cool the high-voltage battery when the temperature of the high-voltage battery is greater than the failure determination temperature.
    Type: Grant
    Filed: February 16, 2018
    Date of Patent: October 5, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Sang-Kyu Lee, Gyu-Hong Kim
  • Patent number: 11108261
    Abstract: A supplementary charging system for an auxiliary battery of an eco-friendly vehicle includes: a main battery; an auxiliary battery having a voltage lower than a voltage of the main battery; a low voltage DC-DC converter (LDC) stepping down the voltage of the main battery and providing the stepped-down voltage to the auxiliary battery; and a controller configured to select, when a periodic charge time of the auxiliary battery arrives, either a constant voltage charging method or a constant current charging method as a charging method based on an aging state of the auxiliary battery, and control the LDC to charge the auxiliary battery with a constant voltage or a constant current based on the selected charging method for a predetermined reference time. The controller terminates the charging when a cumulative charge current amount is greater than or equal to a predetermined reference cumulative charge current amount.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: August 31, 2021
    Assignees: Hyundai Motor Company, KIA Motors Corporation
    Inventors: Kil Young Youn, Seung Hyeon Bin, Sang Kyu Lee, Jae Hwa Jeon
  • Patent number: 11091051
    Abstract: A cooling control system and method for an on-board charger of a plug-in vehicle drive an electric water pump using a cooling control map when the temperature of the on-board charger equipped in a plug-in vehicle is equal to or above an overheat prevention temperature. The cooling control system and the method determine an entry of an optimal cooling control mode to cool the on-board charger to a temperature at which charging operational efficiency is maximized when the temperature of the on-board charger is below the overheat prevention temperature. Thereby, the on-board charger is cooled and the standard charging efficiency and the charge depletion fuel economy of the plug-in vehicle is maximized.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: August 17, 2021
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Seung Hyeon Bin, Kil Young Youn, Sang Kyu Lee, Jae Hwa Jeon
  • Patent number: 11091750
    Abstract: The present invention provides methods and compositions comprising at least one neutral metalloprotease enzyme that has improved storage stability. In some embodiments, the neutral metalloprotease finds use in cleaning and other applications. In some particularly preferred embodiments, the present invention provides methods and compositions comprising neutral metalloprotease(s) obtained from Bacillus sp. In some more particularly preferred embodiments, the neutral metalloprotease is obtained from B. amyloliquefaciens. In still further preferred embodiments, the neutral metalloprotease is a variant of the B. amyloliquefaciens neutral metalloprotease. In yet additional embodiments, the neutral metalloprotease is a homolog of the the B. amyloliquefaciens neutral metalloprotease. The present invention finds particular use in applications including, but not limited to cleaning, bleaching and disinfecting.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: August 17, 2021
    Assignee: DANISCO US INC
    Inventors: Andrew Shaw, David A Estell, Eugene S Sadlowski, Hiroshi Oh, Louise Wallace, Ronaldus Wilhelmus Joannes Hommes, Sang-Kyu Lee
  • Publication number: 20200411460
    Abstract: A semiconductor package includes a frame having a wiring structure and having a recess portion, a semiconductor chip having an active surface with a connection pad disposed thereon and disposed in the recess portion, an encapsulant sealing the semiconductor chip, and a redistribution layer having a first via connected to the connection and a second via connected to a portion of the wiring structure. The semiconductor chip includes a protective insulating film disposed on the active surface and having an opening exposing a region of the connection pad, and a redistribution capping layer connected to the region of the connection pad and extending onto the protective insulating film, and a surface of the redistribution capping layer is substantially the same level as a surface of the portion of the wiring structure, exposed from the first surface.
    Type: Application
    Filed: August 28, 2019
    Publication date: December 31, 2020
    Inventors: Yong Jin PARK, Sang Kyu LEE, Moon Il KIM, Myung Sam KANG, Jeong Ho LEE, Young Gwan KO
  • Patent number: 10843263
    Abstract: The present invention relates to a composition containing a metal powder for three-dimensional printing, a three-dimensional printing method using the same as a raw material, and a three-dimensional printing device, which enable a metal product, which requires high precision as well as high strength, to be produced by a three-dimensional printing technique using a raw material containing a metal powder as a feedstock for three-dimensional printing. In particular, the composition containing a metal powder for three-dimensional printing, according to the present invention, is used as a feedstock supplied to an extrusion head of a three-dimensional printer, and is produced by kneading, pulverizing, and pelletizing the metal powder and a polymer binder.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: November 24, 2020
    Assignee: 3D CONTROLS INC.
    Inventors: Ki Ryong Cha, Sang Kyu Lee
  • Publication number: 20200339882
    Abstract: The invention relates to a liquid-crystalline medium, in particular based on a mixture of polar compounds, and to the use thereof for an active-matrix display, in particular based on the VA, SA-VA, IPS, PS-IPS, FFS, PS-FFS, UB-FFS or PS-UB-FFS effect.
    Type: Application
    Filed: April 27, 2020
    Publication date: October 29, 2020
    Applicant: MERCK PATENT GMBH
    Inventors: Su-Young KIM, Chang-Suk CHOI, Jeong-Hee SUNG, Ming Chou WU, Sang-Kyu LEE