Patents by Inventor Koo-Dong Kim

Koo-Dong Kim 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).

  • Apparatus and method for manufacturing metal mold using semisolid rapid tooling
    Publication number: 20050167072
    Abstract: An apparatus and a method for producing a mold using a semisolid rapid tooling (SRT) are disclosed. The apparatus includes a die set, a mold flask, a means for heating the die set, a pressurization plunger, a graphite heat insulating board and a pressure control means. The method includes steps of forming die steel having a lot of slits, heating the die steel to a semisolid state where a liquid phase and a solid phase are mixed, filling the semisolid die steel into a mold flask by pressurizing the semisolid die steel; and cooling the die steel filled in the mold flask.
    Type: Application
    Filed: December 20, 2002
    Publication date: August 4, 2005
    Inventors: Koo-Dong Kim, Young--Jig Kim, Shae-Kwang Kim