Patents by Inventor Seong Kyeong Cheon

Seong Kyeong Cheon 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: 11331997
    Abstract: A hybrid power transmission apparatus for a vehicle which changes and outputs torque of an engine and a first motor, includes an input shaft selectively input engine torque through an engine clutch, an output externally engages with a differential final reduction gear through an output gear to output shifted torque, a fixed shifting section including a plurality of external gear sets implementing an engine mode having multiple fixed shifting stages, and a mode shifting section including a planetary gear set having a first rotation element fixedly connected to the input shaft and a third rotation element that is externally gear-engaged with a first motor gear of the first motor via a first gear, and one external gear set configured for power connection between a second rotation element of the planetary gear set and the output shaft.
    Type: Grant
    Filed: July 13, 2021
    Date of Patent: May 17, 2022
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Dongwoo Kim, Seong Wook Hwang, Kijong Park, Chon Ok Kim, Jong Hyo Park, Juhyeon Park, Sangki Kwak, Seong Kyeong Cheon, Kwang Hyun Won, Soonki Eo, Yong Sug Choi, Ilhan Yoo