Patents by Inventor Yoo Choi Ji

Yoo Choi Ji 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).

  • Assembly structure for a turbo compressor
    Patent number: 6471493
    Abstract: The present invention relates to a turbo compressor which is capable of minimizing deformation of construction parts which may occur in welding or after welding and simplifying the manufacture and assembly by forming the outer diameter of a driving shaft so as to be stepped and joining the construction parts with bolts and pins.
    Type: Grant
    Filed: January 23, 2001
    Date of Patent: October 29, 2002
    Assignee: LG Electronics Inc.
    Inventors: Moon Chang Choi, Sang Wook Lee, Yoo Choi Ji, Kwang Ha Suh
  • Turbo compressor
    Publication number: 20020037225
    Abstract: The present invention relates to a turbo compressor which is capable of minimizing deformation of construction parts occurred in welding or after welding and simplifying manufacture and assembly by forming the outer diameter of a driving shaft so as to be stepped and combining the construction parts with bolts and pins.
    Type: Application
    Filed: January 23, 2001
    Publication date: March 28, 2002
    Inventors: Moon Chang Choi, Sang Wook Lee, Yoo Choi Ji, Kwang Ha Suh