Patents by Inventor Yeong-Jong Oh

Yeong-Jong Oh 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).

  • Injection molding apparatus for high-gloss products
    Patent number: 7963761
    Abstract: An injection molding apparatus includes a first mold supported on a first fixed plate, a second mold assembled to and disassembled from the first mold and forming a cavity for injection molding, a third mold installed so as to be assembled to and disassembled from the second mold, a guide portion guiding the assembly and disassembly of the first, second, and third molds, and a heating and cooling portion heating the second molding when injecting resin for forming a product into the cavity formed as the first and second molds are assembled to each other and cooling the second mod when curing the resin injected into the cavity.
    Type: Grant
    Filed: September 22, 2009
    Date of Patent: June 21, 2011
    Inventors: Yeong-Jong Oh, Hyung-Jong Oh