Patents by Inventor Yun Yong CHOI

Yun Yong 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).

  • Publication number: 20240193701
    Abstract: A communication system retrieves profile data corresponding to a user profile of a second user, identifies a status message in the profile data, display, via a user interface of the instant messenger application, the status message; in response to receiving, via the user interface, a user input associated with the status message: query, based on the status message, a database to identify one or more items, and display, via the user interface of the instant messenger application, item data corresponding to the one or more items, receive, via the user interface, a user input associated with the one or more items, instantiate a transaction authentication of the one or more items by causing transmission of transaction information data associated with the first user, and cause, based on the transaction authentication of the one or more items, delivery of the one or more items to an account of the second user.
    Type: Application
    Filed: December 7, 2023
    Publication date: June 13, 2024
    Inventors: Sul Gi Kim, Ji Hwi Park, Yun Jin Kim, Nam Hee Ko, Hye Seon Kim, Bo Young Jang, Sun Je Bang, Ji On Chu, Seung Yong Ji, Jae Ick Hwang, Eun Ho Son, Sang Min Seo, Jeong Ryeol Choi, Hye Mi Lee, Shin Young Lee, Seung Uk Jeong
  • Publication number: 20240163234
    Abstract: Provided is a method of operating a terminal. The method includes determining a profile item applicable to the profile view for the account based on an input received by the terminal and a coordinate indicating a position where the profile item is provided on the profile view. The method includes displaying the profile item on a screen of the terminal based on the determined profile item and the determined coordinate. The method includes receiving an input related to the profile item, and displaying a visual effect corresponding to the input on the screen.
    Type: Application
    Filed: November 8, 2023
    Publication date: May 16, 2024
    Inventors: Sul Gi KIM, Ji Hwi PARK, Yun Jin KIM, Nam Hee KO, Hye Seon KIM, Bo Young JANG, Seung Yong JI, Jae Ick HWANG, Sun Je BANG, Ji On CHU, Hye Mi LEE, Shin Young LEE, Seung Uk JEONG, Eun Ho SON, Sang Min SEO, Jeong Ryeol CHOI
  • Publication number: 20230406150
    Abstract: The present disclosure provides a vehicle battery management system. In a vehicle battery management system including a battery unit configured to supply power to an electric vehicle, and a controller configured to control the battery unit, the battery unit is divided into a first battery unit and a second battery unit, the first battery unit supplies power to a motor for generating driving force of the electric vehicle, the second battery unit supplies power to an outside of the electric vehicle, the controller performs a control operation so that power supplied from the first battery unit is supplied to the outside of the electric vehicle or power supplied from the second battery unit is supplied to the motor based on an SOC of each of the first battery unit and the second battery unit and state information of the electric vehicle.
    Type: Application
    Filed: December 1, 2022
    Publication date: December 21, 2023
    Applicant: DRIVETECH CO., LTD.
    Inventors: Yun Yong Choi, Myeong Gyun Choi
  • Patent number: 11772480
    Abstract: A transaxle-integrated cooling circulation system includes a drive motor, an inverter disposed on one surface of the drive motor and electrically connected with the drive motor, a speed reducer including a drive shaft connected with a rotary shaft of the drive motor and a driven shaft having a different RPM from the drive shaft, a first circulation channel extending to allow a lubricating fluid in the speed reducer to make contact with the drive motor, a second circulation channel that is connected with the first circulation channel and that passes through a contact surface between the drive motor and the inverter, and a third circulation channel that is connected with the second circulation channel and that introduces the lubricating fluid into the speed reducer again.
    Type: Grant
    Filed: October 14, 2020
    Date of Patent: October 3, 2023
    Assignee: DRIVETECH CO., LTD.
    Inventor: Yun Yong Choi
  • Patent number: 11674567
    Abstract: An electric vehicle transmission system is disclosed. The electric vehicle transmission system is employing a planetary gear type speed reducer so as to implement first-gear shifting, second-gear shifting, or reverse shifting, thereby enabling reduced manufacturing costs of an electric vehicle while increasing the fuel efficiency of the electric vehicle, and also employing the planetary gear type speed reducer so as to implement forward and reverse shifting, thereby enabling reduced manufacturing costs of the electric vehicle while increasing the fuel efficiency of the electric vehicle.
    Type: Grant
    Filed: October 1, 2020
    Date of Patent: June 13, 2023
    Assignee: DRIVETECH CO., LTD.
    Inventor: Yun Yong Choi
  • Publication number: 20230092312
    Abstract: The present invention provides an electric vehicle platform according to an embodiment of the present invention. The electric vehicle platform includes two side frames extending from front wheels to rear wheels of a vehicle, a plurality of support frames connecting the side frames, a driving motor disposed between two front wheels or between two rear wheels, a battery configured to supply power to the driving motor, a controller configured to control the driving motor and the battery, and a cover assembly connected to the side frames and the support frames so as to cover the driving motor, the battery, and the controller. Here, the cover assembly is divided into a first area defined above the front wheels, a second area defined between the front wheels and the rear wheels, a third area covering the battery and the controller, and a fourth area defined above the rear wheels.
    Type: Application
    Filed: November 23, 2021
    Publication date: March 23, 2023
    Inventor: Yun Yong Choi
  • Publication number: 20210107350
    Abstract: A transaxle-integrated cooling circulation system includes a drive motor, an inverter disposed on one surface of the drive motor and electrically connected with the drive motor, a speed reducer including a drive shaft connected with a rotary shaft of the drive motor and a driven shaft having a different RPM from the drive shaft, a first circulation channel extending to allow a lubricating fluid in the speed reducer to make contact with the drive motor, a second circulation channel that is connected with the first circulation channel and that passes through a contact surface between the drive motor and the inverter, and a third circulation channel that is connected with the second circulation channel and that introduces the lubricating fluid into the speed reducer again.
    Type: Application
    Filed: October 14, 2020
    Publication date: April 15, 2021
    Applicant: DRIVETECH CO., LTD.
    Inventor: Yun Yong CHOI
  • Publication number: 20210071741
    Abstract: The present invention relates to an electric vehicle transmission system employing a planetary gear type speed reducer so as to implement first-gear shifting, second-gear shifting, or reverse shifting, thereby enabling reduced manufacturing costs of an electric vehicle while increasing the fuel efficiency of the electric vehicle, and also employing the planetary gear type speed reducer so as to implement forward and reverse shifting, thereby enabling reduced manufacturing costs of the electric vehicle while increasing the fuel efficiency of the electric vehicle.
    Type: Application
    Filed: October 1, 2020
    Publication date: March 11, 2021
    Applicant: DRIVETECH CO., LTD.
    Inventor: Yun Yong CHOI