Patents by Inventor Phil-Gi Lee

Phil-Gi Lee 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).

  • Method for manufacturing valve seat using laser cladding process
    Patent number: 6903302
    Abstract: A method for manufacturing valve seats using a laser cladding process is provided that includes forming a casting material on which the valve seats are to be formed; fabricating a valve seat target position on which laser cladding will be performed, the valve seat target position being provided at a location on the casting material where a valve seat is to be formed; removing an oxidation film formed on the valve seat target position; injecting a metal powder mixture on the valve seat target position, the metal powder mixture being realized through a mixture of two or more metal powders at a predetermined ratio by weight %; and irradiating a laser beam on the metal powder mixture to clad the metal powder mixture on the valve seat target position to thereby form the valve seat.
    Type: Grant
    Filed: April 24, 2002
    Date of Patent: June 7, 2005
    Assignee: Hyundai Motor Company
    Inventors: Yun-Seok Kim, Jea-Woong Yi, Jae-Hwan Kim, Phil-Gi Lee
  • Method for manufacturing valve seat using laser cladding process
    Publication number: 20020157249
    Abstract: A method for manufacturing valve seats using a laser cladding process is provided that includes forming a casting material on which the valve seats are to be formed; fabricating a valve seat target position on which laser cladding will be performed, the valve seat target position being provided at a location on the casting material where a valve seat is to be formed; removing an oxidation film formed on the valve seat target position; injecting a metal powder mixture on the valve seat target position, the metal powder mixture being realized through a mixture of two or more metal powders at a predetermined ratio by weight %; and irradiating a laser beam on the metal powder mixture to clad the metal powder mixture on the valve seat target position to thereby form the valve seat.
    Type: Application
    Filed: April 24, 2002
    Publication date: October 31, 2002
    Inventors: Yun-Seok Kim, Jea-Woong Yi, Jae-Hwan Kim, Phil-Gi Lee