Patents by Inventor Won-Sub Jung

Won-Sub Jung 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 of Making Catalyst For Carbon Nanotubes and Carbon Nanofibers and Catalyst For Carbon Nanotubes and Nanofibers Thereof
    Publication number: 20080153691
    Abstract: The present invention relates to a method of making a catalyst for carbon nanotubes and nanofibers, comprising heating oxygen compound of transition metal in oxidative ambient at a temperature of 800° C. through 1,5000 C to be transformed into an agglomerated transition metal oxide; and powdering the agglomerated transition metal oxide into a minute particle. Thus, the present invention provides a catalyst for carbon nanotubes and carbon nanofibers, and a method of making the same, in which production cost is reduced and it is possible to safekeep for a long time.
    Type: Application
    Filed: October 5, 2004
    Publication date: June 26, 2008
    Inventors: Won-Sub Jung, Sung-Sil Jung, Heung-Won Kang, Dae-Yeol Lee