Patents by Inventor Seongwook Jl

Seongwook Jl 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: 9970514
    Abstract: The present disclosure provides a planetary gear train of an automatic transmission for a vehicle including an input shaft, an output shaft, four planetary gear sets respectively having three rotational elements, and six control elements for selectively interconnecting the rotational elements and a transmission housing.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: May 15, 2018
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Seongwook Jl, Seong Wook Hwang, Hyun Sik Kwon, Ki Tae Kim, Wonmin Cho, Jae Chang Kook
  • Patent number: 9856952
    Abstract: A planetary gear train of an automatic transmission for a vehicle may include an input shaft receiving torque of an engine, an output shaft outputting changed torque of the engine, a first planetary gear set, a second planetary gear set, a third planetary gear set, a fourth planetary gear set, a first rotation shaft selectively connectable to a transmission housing, a second rotation shaft selectively connectable to the first rotation shaft, and directly connected to the input shaft, a third rotation shaft selectively connectable to the transmission housing, a fourth rotation shaft, a fifth rotation shaft selectively connectable to at least one of the second rotation shaft and the third rotation shaft, a sixth rotation shaft directly connected to the output shaft, and a seventh rotation shaft selectively connectable to the transmission housing.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: January 2, 2018
    Assignee: Hyundai Motor Company
    Inventors: Hyun Sik Kwon, Seong Wook Hwang, Wonmin Cho, Jae Chang Kook, Seongwook Jl
  • Patent number: 9618090
    Abstract: A planetary gear train of an automatic transmission for a vehicle may include an input shaft receiving torque of an engine, an output shaft outputting changed torque, a first planetary gear set, a second planetary gear set, a third planetary gear set, a fourth planetary gear set, a first rotation shaft selectively connected to a transmission housing, a second rotation shaft, a third rotation shaft selectively connected to the transmission housing, a fourth rotation shaft, a fifth rotation shaft directly connected to the input shaft, a sixth rotation shaft selectively connected to the fourth rotation shaft or the fifth rotation shaft, a seventh rotation shaft selectively connected to the fourth rotation shaft, and an eighth rotation shaft directly connected to the output shaft, and selectively connected to the seventh rotation shaft.
    Type: Grant
    Filed: October 8, 2015
    Date of Patent: April 11, 2017
    Assignee: Hyundai Motor Company
    Inventors: Wonmin Cho, Jae Chang Kook, Myeong Hoon Noh, Seongwook Jl, Kangsoo Seo, Seong Wook Hwang