Patents by Inventor Dong Wha Park

Dong Wha Park 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 and apparatus for manufacturing a low melting point nano glass powder
    Patent number: 9115020
    Abstract: Disclosed is a method for manufacturing a low melting point nano glass powder. The method includes the steps of: preparing a bismuth-based low melting point glass powder precursor of a micro size, having bismuth (Bi) as the main ingredient; injecting the glass powder precursor into a reaction chamber of a plasma treatment device; applying thermal plasma via a direct current power source to the glass powder precursor injected into the reaction chamber, to vaporize the glass powder precursor; and generating nano glass powder having a nano size by quenching the gas generated by vaporizing the glass powder precursor.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: August 25, 2015
    Assignee: INHA—INDUSTRY PARTNERSHIP INSTITUTE
    Inventors: Hyung Sun Kim, Dong Wha Park, Sung Hwan Cho, Sun Il Kim, Won Kyung Lee, Hyun Jin Shim
  • METHOD AND APPARATUS FOR MANUFACTURING A LOW MELTING POINT NANO GLASS POWDER
    Publication number: 20140243185
    Abstract: Disclosed is a method for manufacturing a low melting point nano glass powder. The method includes the steps of: preparing a bismuth-based low melting point glass powder precursor of a micro size, having bismuth (Bi) as the main ingredient; injecting the glass powder precursor into a reaction chamber of a plasma treatment device; applying thermal plasma via a direct current power source to the glass powder precursor injected into the reaction chamber, to vaporize the glass powder precursor; and generating nano glass powder having a nano size by quenching the gas generated by vaporizing the glass powder precursor.
    Type: Application
    Filed: June 8, 2012
    Publication date: August 28, 2014
    Applicant: INHA-INDUSTRY PARTNERSHIP INSTITUTE
    Inventors: Hyung Sun Kim, Dong Wha Park, Sung Hwan Cho, Sun ll Kim, Won Kyung Lee, Hyun Jin Shim