Patents by Inventor Jaehyeock Chang

Jaehyeock Chang 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).

  • Differential reducer with high ratio
    Patent number: 10975946
    Abstract: A high-ratio differential reducer is provided. A carrier is connected to an input shaft. At least one planetary gear is supported to be rotatably supported by the carrier in an eccentric state from the carrier. A fixed annular gear meshes with the planetary gear in a state of being coaxially arranged with the carrier. A rotating annular gear meshes with the planetary gear in a state of being coaxially arranged with the fixed annular gear and has the number of teeth set by Equation below: Zo=Zf±Np??(1), where Zo is the number of teeth of the rotating annular gear, Zf is the number of teeth of the fixed annular gear, and Np is the number of planetary gears.
    Type: Grant
    Filed: July 7, 2020
    Date of Patent: April 13, 2021
    Inventor: Jaehyeock Chang