Patents by Inventor Young Chae SONG

Young Chae SONG 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).

  • LASER WELDING METHOD FOR GALVANIZED STEEL SHEETS
    Publication number: 20090134131
    Abstract: The present invention relates to a laser welding method for galvanized steel sheets where galvanized steel sheets are lap-welded by using a laser beam of a keyhole welding zone in a state in which a gap for exhausting zinc fumes is formed by embossing a plurality of protrusions along a welding line on one galvanized steel sheet among the galvanized steel sheets by using a laser beam of a conducting welding region.
    Type: Application
    Filed: February 28, 2008
    Publication date: May 28, 2009
    Applicant: SUNGWOO HITECH CO., LTD.
    Inventors: Mun Yong LEE, Young Chae SONG