Patents by Inventor Byong Kee Kim

Byong Kee 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).

  • Process for manufacturing nano-phase TaC-transition metal based complex powder
    Patent number: 7153340
    Abstract: Ultra fine TaC-transition metal based complex powder is prepared by: dispersing a mixture of a Ta-containing material and a transition metal-containing water soluble salt into a solvent; stirring the mixture and spray-drying the stirred material to obtain precursor powder; calcining the precursor powder to form ultra fine Ta-transition metal complex oxide powder; mixing the ultra fine Ta-transition metal complex oxide powder with nano-sized carbon particles, followed by drying to obtain complex oxide powder; and subjecting the dried complex oxide powder to reduction/carburization in a non-oxidizing atmosphere.
    Type: Grant
    Filed: December 30, 2003
    Date of Patent: December 26, 2006
    Assignee: Korean Institute of Machinery and Materials
    Inventors: Byong Kee Kim, Seong Hyeon Hong, Yong Won Woo
  • Process for manufacturing nano-phase TaC-transition metal based complex powder
    Publication number: 20040223865
    Abstract: Ultra fine TaC-transition metal based complex powder is prepared by: dispersing a mixture of a Ta-containing material and a transition metal-containing water soluble salt into a solvent; stirring the mixture and spray-drying the stirred material to obtain precursor powder; calcining the precursor powder to form ultra fine Ta-transition metal complex oxide powder; mixing the ultra fine Ta-transition metal complex oxide powder with nano-sized carbon particles, followed by drying to obtain complex oxide powder; and subjecting the dried complex oxide powder to reduction/carburization in a non-oxidizing atmosphere.
    Type: Application
    Filed: December 30, 2003
    Publication date: November 11, 2004
    Inventors: Byong Kee Kim, Seong Hyeon Hong, Yong Won Woo