Patents by Inventor Chang-Mo Ryu

Chang-Mo Ryu 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 synthesizing carbon nanotubes and apparatus used for the same
    Patent number: 6759025
    Abstract: A method of synthesizing carbon nanotubes and a carbon nanotube synthesizing apparatus used for the same are provided. A catalyst is introduced into the reactor, and the catalyst in the reactor is selectively and locally heated by a heating method such as microwave irradiation, electromagnetic inductive heating, radio frequency heating or laser heating. Here, carbon source gas, carbon source gas and hydrogen sulfide gas, or carbon source gas and hydrogen gas or inert gas is supplied into the reactor, thereby growing carbon nanotubes from the locally heated catalyst.
    Type: Grant
    Filed: April 27, 2001
    Date of Patent: July 6, 2004
    Assignees: Iljin Nanotech Co., Ltd., Pohang University of Science and Technology Foundation
    Inventors: Eun-Hwa Hong, Kun-Hong Lee, Chang-Mo Ryu, Jong-Hoon Han, Jae-Eun Yoo
  • Method of synthesizing carbon nanotubes and apparatus used for the same
    Publication number: 20020127170
    Abstract: A method of synthesizing carbon nanotubes and a carbon nanotube synthesizing apparatus used for the same are provided. A catalyst is introduced into the reactor, and the catalyst in the reactor is selectively and locally heated by a heating method such as microwave irradiation, electromagnetic inductive heating, radio frequency heating or laser heating. Here, carbon source gas, carbon source gas and hydrogen sulfide gas, or carbon source gas and hydrogen gas or inert gas is supplied into the reactor, thereby growing carbon nanotubes from the locally heated catalyst.
    Type: Application
    Filed: April 27, 2001
    Publication date: September 12, 2002
    Inventors: Eun-Hwa Hong, Kun-Hong Lee, Chang-Mo Ryu, Jong-Hoon Han, Jae-Eun Yoo