Patents by Inventor Jae-young Choi

Jae-young 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).

  • VEHICLE AND METHOD FOR CONTROLLING THE SAME
    Publication number: 20200171962
    Abstract: A vehicle and a method for controlling the same are provided to provide consistent deceleration feeling or acceleration feeling during creep driving even when the driving load of the vehicle is changed by determining a creep torque based on a target acceleration of a vehicle, may include a motor; a transmission; a vehicle speed sensor configured to detect a speed of the vehicle; and a controller configured to determine a target acceleration and a creep torque based on a current speed of the vehicle and a gear ratio of the transmission when the vehicle satisfies a creep driving condition, update the determined creep torque based on a difference value between a target speed according to the determined target acceleration and the current speed of the vehicle, and control the motor to transmit the updated creep torque to wheels of the vehicle.
    Type: Application
    Filed: April 5, 2019
    Publication date: June 4, 2020
    Applicants: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Hoon HAN, Kwonchae CHUNG, Jae Young CHOI, II Kwon PARK
  • ROTOR SLEEVE OF DRIVING MOTOR AND DRIVING MOTOR INCLUDING THE SAME
    Publication number: 20200153300
    Abstract: A rotor sleeve provides a direct cooling method in which oil flows into the rotor sleeve via a flow passage formed through an input shaft of a transmission and is distributed to a motor coil of a driving motor to cool the motor coil. The rotor sleeve has a flow passage structure capable of maintaining a balance between the amount of oil to be distributed toward a transmission and the amount of oil to be distributed toward an engine.
    Type: Application
    Filed: June 24, 2019
    Publication date: May 14, 2020
    Inventors: Tae Kil Kim, Chul Min Ahn, Dae Woong Han, Jae Young Choi
  • ONE-DIMENSIONAL NANO-CHAIN STRUCTURE AND PREPARING METHOD THEREOF
    Publication number: 20200115252
    Abstract: The present disclosure relates to a one-dimensional nano-chain structure including a single crystal structure as a minimum repeat unit structure.
    Type: Application
    Filed: October 3, 2019
    Publication date: April 16, 2020
    Applicant: Research & Business Foundation Sungkyunkwan University
    Inventors: Jae-Young CHOI, Sudong CHAE, Seungbae OH, Bum Jun KIM
  • Ultrasonic apparatus and method for controlling the same
    Patent number: 10603015
    Abstract: An ultrasonic apparatus and method for controlling the same, by which whether a biopsy is required is determined based on X-ray and ultrasound images. An ultrasonic apparatus includes an image processing unit for matching or correlating an area of interest in an ultrasound image of a subject and an area of interest in a X-ray image of the subject; a controller for analyzing the matched or matching area of interest and determining whether a biopsy is required for the subject; and a display for displaying the determination as to whether the biopsy is required.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: March 31, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae Young Choi, Ki Won Sohn
  • Transmission synchronizer
    Patent number: 10598232
    Abstract: A transmission synchronizer apparatus may include a sleeve coupled to an external peripheral surface of a hub gear while moving axially, and clutch gears disposed at both sides of the hub gear, each selectively synchronizing and engaging with the sleeve according to the axial movement of the sleeve, wherein the transmission synchronizer includes a plurality of main sleeve teeth protruding radially from an internal peripheral surface of the sleeve while being distanced from one another, and an auxiliary sleeve tooth protruding radially from the internal peripheral surface of the sleeve while protruding from one side of each of the main sleeve teeth to have a height lower than the main sleeve tooth.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: March 24, 2020
    Assignees: Hyundai Motor Company, Kia Motors Company
    Inventors: Jae Young Choi, Sung Wha Hong, Jong Yun Park
  • POWERTRAIN OF HYBRID ELECTRIC VEHICLE
    Publication number: 20200025257
    Abstract: A powertrain of a hybrid electric vehicle includes: a sleeve drum comprising a main body having an open-topped-drum shape, a plurality of protrusions protruding toward a center of the sleeve drum and arranged on an inner sidewall of the main body to be equidistantly spaced apart from each other, and a plurality of insertion grooves concaved outwardly between the plurality of protrusions; and a retainer cover seated inside the sleeve drum and comprising a plurality of radial protrusions having a shape corresponding to that of each of the plurality of protrusions and the plurality of insertion grooves.
    Type: Application
    Filed: November 7, 2018
    Publication date: January 23, 2020
    Inventors: Hong Seok YANG, Jae Young CHOI, Hee Ra LEE
  • Method for controlling vehicle equipped with automatic transmission
    Patent number: 10533661
    Abstract: A method for controlling a vehicle installed with an automatic transmission, includes: a sudden stop determination step in which a controller determines whether the vehicle has stopped at a speed greater than or equal to a reference deceleration speed and whether a post-stop elapsed time is within a first reference time; a takeoff determination step in which the controller determines whether an input torque of the transmission exceeds zero within the first reference time when a shift range is in a driving range; a pressure control step in which, when the vehicle takes off, the controller elevates a line pressure of the transmission; a limitation determination step in which if a slippage extent of a turbine exceeds a reference slippage value for a second reference time, the controller limits the takeoff; and a torque reduction step in which the controller reduces a takeoff torque input of the transmission.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: January 14, 2020
    Assignee: Hyundai Motor Company
    Inventors: Jae Young Choi, Hye Kil Hwang, Sang Don Lee, Woo Suk Choi, Joon Shik Park
  • METHOD OF PREPARING HYDROPHOBIC POROUS SILICA AND HYDROPHOBIC POROUS SILICA
    Publication number: 20190389732
    Abstract: A method of preparing hydrophobic porous silica includes reacting a porous silica particle containing a hydrophilic group in a solvent with an organosilane compound under a basic catalyst to form a mixture, drying the mixture comprising the porous silica particle in a vacuum, and condensation reacting the hydrophilic group of the porous silica particle with the organosilane compound on the surface of the porous silica particle to modify the surface of the porous silica particle to be hydrophobic.
    Type: Application
    Filed: August 28, 2019
    Publication date: December 26, 2019
    Applicant: Research & Business Foundation Sungkyunkwan University
    Inventors: Jae Young CHOI, Su Dong CHAE, Jang Ho PARK, Sung Ho LEE
  • HYDROPHOBIC POROUS SILICA AND METHOD OF PREPARING HYDROPHOBIC POROUS SILICA
    Publication number: 20190380930
    Abstract: A method of preparing hydrophobic porous silica includes adding an alcohol to a solvent in which a porous silica particle including a hydrophilic group is dispersed and stirring the same to form a mixture, drying the mixture including the porous silica particle in a vacuum, and condensation reacting the hydrophilic group of the porous silica particle with the alcohol on the surface of the porous silica particle to modify the surface of the porous silica particle to be hydrophobic.
    Type: Application
    Filed: August 28, 2019
    Publication date: December 19, 2019
    Applicant: Research & Business Foundation Sungkyunkwan University
    Inventors: Jae Young CHOI, Su Dong CHAE, Jang Ho PARK, Sung Ho LEE
  • METHOD OF PRODUCING GINSENG LEAF EXTRACT INCLUDING GINSENOSIDES Rg6, Rk3, AND Rh4 IN INCREASED AMOUNTS FROM GINSENG LEAF AND USE OF THE GINSENG LEAF EXTRACT
    Publication number: 20190365838
    Abstract: Provided are a method of efficiently producing a ginseng leaf extract including rare ginsenosides Rg6, Rk3, and Rh4 in increased amounts, and use of a ginseng leaf extract produced by the method.
    Type: Application
    Filed: May 31, 2019
    Publication date: December 5, 2019
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jungyeob HAM, Taejung KIM, Young Tae PARK, Kyusun KIM, Pilju CHOI, Seon-Jun CHOI, Bong Geun SONG, Jae Young CHOI
  • Driving mode changeable mobility device
    Patent number: 10486052
    Abstract: A mobility device is provided and includes a base panel that supports a passenger. A plurality of wheels are disposed at a plurality of points of the base panel and are coupled to the base panel to be rotated with respect to a vertical axis. A rotary portion provides a rotational force to rotate the wheel with respect to the base panel. Additionally, a braking portion is disposed on the rotary portion to adjust the plurality of wheels to be rotated with respect to the base panel or positions of the plurality of wheels to be fixed.
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: November 26, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Jae Young Choi
  • Folding personal mobility vehicle
    Patent number: 10486763
    Abstract: A folding personal mobility vehicle includes a footboard part including wheels and a handle part including handles. The footboard part includes a front footboard part and a rear footboard part connected to each other through a hinge structure to be folded. The handle part has a length that is changed through sliding and is foldable toward the footboard part. The rear footboard part is folded on the front footboard part through the hinge structure, the handle part is folded on the rear footboard part in a state in which the length of the handle part is shortened through the sliding, and the rear footboard part is positioned between the handle part and the front footboard part in the folded state.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: November 26, 2019
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Dong Han Koo, Jae Young Choi, Jun Hwan Park
  • Synchronizer of transmission
    Patent number: 10400830
    Abstract: A synchronizer of a transmission may include a lower key disposed slidable in a radial direction of a hub; an upper key disposed at an external side of the lower key in the radial direction to be slidable in an axial direction of the hub; a sleeve disposed at an external side of the hub to slide the upper key in the axial direction while being slid in the axial direction thereof, pressing the upper key toward a synchronizer ring; a key spring disposed between the lower key and the hub to press the lower key and the upper key toward an internal surface of the sleeve; and a displacement converting device converting relative displacement generated in a circumferential direction of the hub between the upper key and the lower key into relative displacement of the upper key in axial direction toward the synchronizer ring with respect to the lower key.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: September 3, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Jae Young Choi, Jong Yun Park
  • Clutch
    Patent number: 10393192
    Abstract: A clutch may include a hub configured to be constrained to a rotation shaft; a sleeve configured to be straight slidably disposed on an external circumferential surface of the hub; a clutch gear configured to be disposed to be relatively rotatable with respect to the rotation shaft; a first friction ring configured to be mounted between the clutch gear and the hub; a key configured to be mounted between the sleeve and the hub; and a displacement changing portion configured to change a relative rotation displacement of the first friction ring with respect to the hub to an axial linear displacement of the first friction ring.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: August 27, 2019
    Assignee: Hyundai Motor Company
    Inventors: Jong Yun Park, Yeon Ho Kim, Sung Wha Hong, Kyung Ha Kim, Jae Young Choi
  • Synchronizer of transmission
    Patent number: 10393191
    Abstract: A synchronizer of a transmission may include bottom key disposed on a hub to be slidable in a radial direction of the hub; a top key disposed radially outside the bottom key to be slidable in an axial direction of the hub; a sleeve disposed outside the hub and sliding in the axial direction to slide the top key in the axial direction to press a synchro-ring; a key spring disposed between the bottom key and the hub to press the bottom key and the top key toward an internal side of the sleeve; and a motion converting portion converting relative motion generated in a circumferential direction of the hub between the top key and the bottom key into axial relative motion of the top key to the bottom key toward the synchro-ring.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: August 27, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Jae Young Choi, Sung Wha Hong, Jong Yun Park
  • POLYMER FOR TRANSFERRING GRAPHENE AND TRANSFER METHOD OF GRAPHENE USING THE SAME
    Publication number: 20190256357
    Abstract: The present disclosure relates to a polymer for transferring graphene, including: polystyrene; and a compound represented by the following Chemical Formula 1: (in Chemical Formula 1, R1 and R2 are each independently H, linear or branched C1-C20 alkyl, which can be substituted, and C6-C20 aryl, which can be substituted, and the substitution is carried out with C1-C6 alkyl or C6-C20 aryl, and n is 1 to 10).
    Type: Application
    Filed: February 22, 2019
    Publication date: August 22, 2019
    Applicant: Research & Business Foundation Sungkyunkwan University
    Inventors: Jae Young CHOI, Bum Jun KIM, Nasir TUQEER
  • Mobility device storage apparatus for vehicle
    Patent number: 10351067
    Abstract: A mobility device storage apparatus for a vehicle, may include a door having a storage space therein and a position releasing portion disposed in the storage space; and a tiltable storage device disposed in the storage space to be rotatable in a lateral direction, the tiltable storage device being tiltable in a vertical direction wherein a tilting motion of the tiltable storage device in the vertical direction is restricted by a tilting-up locking portion, wherein when the tiltable storage device is rotated in the lateral direction, the tilting-up locking portion is interlocked with the position releasing portion, wherein the tilting motion of the tiltable storage device in the vertical direction is unrestricted to allow the tiltable storage device to be tilted upward or downward.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: July 16, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corp.
    Inventors: Dong Han Koo, Seok Won Lee, Jae Young Choi, Jun Hwan Park
  • Folding personal mobility vehicle
    Patent number: 10328986
    Abstract: A folding personal mobility vehicle includes a foothold part provided with a wheel, a handle part provided with a handle, and a hinge structure between the foothold part and the handle part. The foothold part and the handle part are each configured to be folded using the hinge structure and the foothold part and the handle part are configured so that the foothold part is positioned between the handle parts in a folded state.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: June 25, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Dong Han Koo, Jae Young Choi, Jun Hwan Park
  • Electronic device and method for outputting electronic document in electronic device
    Patent number: 10325533
    Abstract: An electronic device is provided. The electronic device includes a display configured to output a screen on which a web browser is executed, an input device comprising input circuitry configured to integrate with the display or be independent of the display, a communication circuit configured establish a communication channel with the network via a wired or wireless communication connection, a processor configured to be electrically connected with the communication circuit, the display, and the input device, and a memory configured to store a program and instructions for the web browser and be electrically connected with the processor.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: June 18, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyung Tae Kim, Kyoung Bong Kang, Eun Sol Park, Young Taeck Song, Soon Young Lee, Gyong Jin Joung, Hee Jae Kim, Hyun Soo Shim, Dae Chan Jang, Jin Hyuk Jun, Jae Young Choi
  • CONTROLLING METHOD OF RPM FLARE OF TRANSMISSION FOR HYBRID VEHICLE
    Publication number: 20190168733
    Abstract: A method for controlling revolutions per minute (RPM) flare, in which an RPM of a transmission increases due to clutch slip, for a hybrid vehicle can include: determining whether gear-shifting is performed in a transmission of the hybrid vehicle; detecting whether RPM flare of the transmission occurs when it is determined that the gear-shifting is performed; and controlling a torque of a motor of the hybrid vehicle so as to reduce the RPM flare of the transmission by reducing the torque of the motor when the RPM flare of the transmission is detected.
    Type: Application
    Filed: July 18, 2018
    Publication date: June 6, 2019
    Inventors: Won Woo Seo, Young Kwan Ko, Hoon Han, Jae Young Choi