Patents by Inventor Sang Dae Park

Sang Dae Park 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: 20190389503
    Abstract: Disclosed herein is a device for selectively limiting both rotational directions of a steering wheel, and provided is a steering angle limiting device of a steer-by-wire (SBW) system including a stopping gear configured to be rotated together with a steering shaft; a cam configured to receive a rotational force of an actuator and to be eccentrically rotated; and a stopper configured to be rotated in response to rotational operation of the cam and selectively engaged with gear teeth of the stopping gear, thereby restricting selectively forward and reverse directional rotations of the stopping gear.
    Type: Application
    Filed: October 8, 2018
    Publication date: December 26, 2019
    Inventors: Sang Woo Hwang, Young Dae Park, Byung Rim Lee, Min Jun Kim, Se Hyun Chang, Hyeon Seok Cho
  • Patent number: 10464596
    Abstract: A steering system for a vehicle may include first and second steering motors providing torque; a rack bar to which torques of the first and second steering motor are simultaneously applied, and configured to change steering angles of wheels by being displaced by the rotation of the first and second steering motors; first and second motor position detectors detecting rotation angles of the first and second steering motors, respectively; and a controller deriving an absolute position of the rack bar based on a difference between the rotation angles of the first and second steering motors detected by the first and second motor position detectors, wherein an amount of displacement of the rack bar according to an amount of rotation of the first steering motor is different from an amount of displacement of the rack bar according to an amount of rotation of the second steering motor.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: November 5, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Sang Woo Hwang, Hyeon Seok Cho, Byung Rim Lee, Young Dae Park, Min Jun Kim
  • Patent number: 10468603
    Abstract: The present disclosure relates to an organic light-emitting diode having a low driving voltage and long lifespan and more particularly, to an organic light-emitting diode, comprising a first electrode, a second electrode facing the first electrode, and a light-emitting layer interposed therebetween, wherein the light-emitting layer contains at least one of the amine compounds represented by the following Chemical Formula A or Chemical Formula B, plus the compound represented by Chemical Formula D. The structures of Chemical Formulas A, B, and D are the same as in the specification.
    Type: Grant
    Filed: January 15, 2016
    Date of Patent: November 5, 2019
    Assignee: SFC CO., LTD.
    Inventors: Soon-Wook Cha, Seok-Bae Park, Sang-woo Park, Yoona Shin, Hee-Dae Kim
  • Publication number: 20190333689
    Abstract: An inductor includes a body in which a plurality of insulating layers on which a plurality of coil patterns are respectively disposed are stacked, and first and second external electrodes disposed on an external surface of the body. The plurality of coil patterns are connected to each other by coil connecting portions and opposing ends thereof are connected to the first and second external electrodes through coil lead portions, respectively, to form a coil. The plurality of coil patterns include coil patterns disposed on outermost sides of the body and coil patterns disposed on an inner side thereof. The coil patterns arranged on the inner side are connected in parallel. At least one of gaps between the coil patterns arranged on the inner side is greater than a gap between other remaining coil patterns.
    Type: Application
    Filed: November 13, 2018
    Publication date: October 31, 2019
    Inventors: Sang Soo PARK, Hwi Dae KIM, Young Ghyu AHN
  • Patent number: 10427714
    Abstract: A steering-feel control device in a steer-by-wire system may include a pressure member for rotating in a predetermined direction or an opposite direction within a rotation path depending on the rotation direction of a steering wheel, a push block rotatably provided in the rotation path of the given or opposite direction, a first elastic member for providing elastic restoration force in the rotation direction of the pressure member for elastic variation in the rotational displacement between the pressure member and the push block, and a second elastic member for providing elastic restoration force in the rotation direction of the push block for elastic variation in the rotational displacement when the push block is rotated away from the pressure member, the second elastic member having an elastic constant smaller than that of the first elastic member and being provided in a pre-compressed state to have elastic force greater than that of the first elastic member.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: October 1, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corp.
    Inventors: Sang Woo Hwang, Young Dae Park, Byung Rim Lee, Min Jun Kim, Se Hyun Chang, Hyeon Seok Cho
  • Patent number: 10421333
    Abstract: The present disclosure provides a system of air-conditioning a seat for a vehicle and a method for controlling the same. The system of air-conditioning a seat for a vehicle includes: a blower disposed below the seat of the vehicle and configured to blow air onto a body contact surface; a first temperature sensor configured to detect a temperature of a front end of a suction hole of the blower; a second temperature sensor configured to detect a temperature of the body contact surface; a third temperature sensor configured to detect a room temperature of the vehicle; and an HVAC control unit configured to control an air-conditioning system of the vehicle. The HVAC control unit determines a blow direction mode of the air-conditioning system of the vehicle based on the temperatures detected by the first, the second, and the third temperature sensors when the blower is actuated.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: September 24, 2019
    Assignees: Hyundai Dymos Incorporated, Inzicontrols Co., Ltd.
    Inventors: Do Hyung Kim, Ho Sub Lim, Myung Jin Lee, Seung Jae Kim, Jong Dae Lim, Sang Hyun Park, Eun Sang Cho, Hyeok Lae Park
  • Patent number: 10400324
    Abstract: Disclosed herein is a method of treating a composite piston pin, including: preparing the piston pin of which at least surface layer includes a composite material including a reinforcing fiber and a resin; improving roughness by processing the surface layer of the piston pin; and forming a coating layer on the surface layer processed to reduce a friction coefficient of the piston pin.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: September 3, 2019
    Assignee: Hyundai Motor Company
    Inventors: Sung Chul Cha, June Ho Yang, Hee Sam Kang, Chi Hoon Choi, Sang Yoon Park, Jong Dae Lim, Seung Hyun Hong
  • Patent number: 10392050
    Abstract: A steering apparatus for a steer by wire system includes a first motor and a second motor configured to provide a torque. A first planetary gear set is configured to receive the torque from the first motor and to generate a reaction torque required for steering. A second planetary gear set is configured to receive the torque from the steering wheel and the second motor, and to variably output a gear ratio for an input by the steering wheel depending on a rotation of the second motor. A stopping mechanism is configured to limit a maximum rotation angle of the steering wheel.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: August 27, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Min Jun Kim, Young Dae Park, Byung Rim Lee, Sang Woo Hwang, Se Hyun Chang, Hyeon Seok Cho
  • Publication number: 20190242005
    Abstract: Disclosed herein is a method of treating a composite piston pin, including: preparing the piston pin of which at least surface layer includes a composite material including a reinforcing fiber and a resin; improving roughness by processing the surface layer of the piston pin; and forming a coating layer on the surface layer processed to reduce a friction coefficient of the piston pin.
    Type: Application
    Filed: April 16, 2019
    Publication date: August 8, 2019
    Applicants: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Sung Chul CHA, June Ho Yang, Hee Sam Kang, Chi Hoon Choi, Sang Yoon Park, Jong Dae Lim, Seung Hyun Hong
  • Publication number: 20190244760
    Abstract: A multilayer ceramic electronic component includes a body with a plurality of first and second internal electrodes alternately arranged with dielectric layers interposed therebetween. There may be M each of third and fourth external electrodes on opposing sides of the body, where M is greater than or equal to 3 and all external electrodes have different polarities than the adjacent external electrodes. There may be N via electrodes penetrating through the body, where N is greater than or equal to 3 and the via electrodes are connected to either of the first or second internal electrodes. The multilayer ceramic electronic component may achieve low equivalent series inductance (ESL) characteristics and may reduce the mounting area on the circuit board.
    Type: Application
    Filed: April 19, 2019
    Publication date: August 8, 2019
    Inventors: Sang Soo PARK, Young Ghyu AHN, Hwi Dae KIM
  • Patent number: 10347430
    Abstract: A multilayer ceramic electronic component includes a body with a plurality of first and second internal electrodes alternately arranged with dielectric layers interposed therebetween. There may be M each of third and fourth external electrodes on opposing sides of the body, where M is greater than or equal to 3 and all external electrodes have different polarities than the adjacent external electrodes. There may be N via electrodes penetrating through the body, where N is greater than or equal to 3 and the via electrodes are connected to either of the first or second internal electrodes. The multilayer ceramic electronic component may achieve low equivalent series inductance (ESL) characteristics and may reduce the mounting area on the circuit board.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: July 9, 2019
    Assignee: Samsung EIectro-Mechanics Co., Ltd.
    Inventors: Sang Soo Park, Young Ghyu Ahn, Hwi Dae Kim
  • Patent number: 10324252
    Abstract: Disclosed is a backlight unit. The backlight unit includes a light source, and a cover bottom internally accommodating the light source. Here, the cover bottom is divided into n-numbered (n>1) sub-cover bottoms, and a coupling unit for mutually fixing and coupling the divided cover bottoms is formed at ends of each of the cover bottoms facing each other.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: June 18, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: Sang-Dae Park, Eun-Ju Kim
  • Publication number: 20190176881
    Abstract: A travel control system and a method for an autonomous vehicle is provided to easily determine a rotating position of a steering wheel when an autonomous travel mode is switched to a driver's travel mode. The travel control system includes: a display mechanism provided in a central portion of a steering wheel to display a rotating position of the steering wheel; and a controller to controls the display mechanism to display the rotating position of the steering wheel based on a steering angle of a tire when the steering angle of the tire is input and the autonomous travel mode is switched to the driver travel mode.
    Type: Application
    Filed: October 23, 2018
    Publication date: June 13, 2019
    Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Sang Woo HWANG, Young Dae PARK, Byung Rim LEE, Min Jun KIM, Se Hyun CHANG, Hyeon Seok CHO
  • Publication number: 20190172646
    Abstract: A multilayer capacitor includes a body including an active region including a plurality of first and second internal electrodes alternately disposed with respective dielectric layers interposed therebetween and upper and lower cover regions, and having first and second surfaces opposing each other and third and fourth surfaces opposing each other, the first and second internal electrodes being exposed to the third and fourth surfaces, respectively, first and second external electrodes disposed on the third and fourth surfaces, respectively, and connected to the first and second internal electrodes, respectively, and a plurality of dummy electrodes disposed in the lower cover region. A total thickness of the dummy electrodes disposed in the lower cover region is less than 20% of a sum of a thickness of the lower cover region and a thickness of one of the first and second external electrodes disposed on a mounting surface of the body.
    Type: Application
    Filed: May 10, 2018
    Publication date: June 6, 2019
    Inventors: Hwi Dae KIM, Sang Soo PARK, Young Ghyu AHN
  • Patent number: 10156745
    Abstract: A liquid crystal display device includes a liquid crystal display panel; a backlight assembly providing light to the liquid crystal display panel and including an optical sheet; a bottom cover supporting the liquid crystal display panel and the backlight assembly and including a side surface having an indented portion; and a fixing unit combined with the indented portion of the side surface of the bottom cover to fix the optical sheet, wherein the optical sheet includes a projecting portion, which is cut to include a fixing part and bridges and is united with the fixing unit.
    Type: Grant
    Filed: August 3, 2017
    Date of Patent: December 18, 2018
    Assignee: LG Display Co., Ltd.
    Inventors: Sang-Dae Park, Min-Jin Lee, Sung-Hwan Yoon
  • Publication number: 20180120493
    Abstract: Disclosed is a backlight unit. The backlight unit includes a light source, and a cover bottom internally accommodating the light source. Here, the cover bottom is divided into n-numbered (n>1) sub-cover bottoms, and a coupling unit for mutually fixing and coupling the divided cover bottoms is formed at ends of each of the cover bottoms facing each other.
    Type: Application
    Filed: December 27, 2017
    Publication date: May 3, 2018
    Inventors: Sang-Dae PARK, Eun-Ju KIM
  • Publication number: 20180113153
    Abstract: Disclosed is a shunt resistor for measuring current, and a shunt resistor for measuring current, in which one or more protrusions having an unevenness shape, which are formed on one lateral surface of a shunt resistor and one or more solders are bonded to each other, respectively and the shunt resistor and a printed circuit board are electrically connected to each other to measure current of a battery through a shunt resistance included in the shunt resistor unit.
    Type: Application
    Filed: September 21, 2017
    Publication date: April 26, 2018
    Applicant: LG CHEM, LTD.
    Inventors: Dong Kwan JANG, Ki Chan KIM, Sang Dae PARK, Kil Ja LIM
  • Patent number: 9864129
    Abstract: Disclosed is a backlight unit. The backlight unit includes a light source, and a cover bottom internally accommodating the light source. Here, the cover bottom is divided into n-numbered (n>1) sub-cover bottoms, and a coupling unit for mutually fixing and coupling the divided cover bottoms is formed at ends of each of the cover bottoms facing each other.
    Type: Grant
    Filed: June 18, 2015
    Date of Patent: January 9, 2018
    Assignee: LG Display Co., Ltd.
    Inventors: Sang-Dae Park, Eun-Ju Kim
  • Patent number: 9864412
    Abstract: A flexible display apparatus includes a frame module having a sliding path to guide the winding or unwinding of a flexible display module, and a sliding shaft configured to slide along a spiral sliding path via vertical movement of the flexible display module. The flexible display apparatus makes it easy to wind or unwind a large flexible display panel.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: January 9, 2018
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Sang Dae Park, Choun Sung Kang, Yong Seok Lee, Chang Yoon Park
  • Publication number: 20170329174
    Abstract: A liquid crystal display device includes a liquid crystal display panel; a backlight assembly providing light to the liquid crystal display panel and including an optical sheet; a bottom cover supporting the liquid crystal display panel and the backlight assembly and including a side surface having an indented portion; and a fixing unit combined with the indented portion of the side surface of the bottom cover to fix the optical sheet, wherein the optical sheet includes a projecting portion, which is cut to include a fixing part and bridges and is united with the fixing unit.
    Type: Application
    Filed: August 3, 2017
    Publication date: November 16, 2017
    Inventors: Sang-Dae PARK, Min-Jin LEE, Sung-Hwan YOON