Patents by Inventor Sang Heon Kang

Sang Heon Kang 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).

  • PREPARING METHOD OF CATALYST FOR PREPARING LOW-DIAMETER CARBON NANOTUBE AND PREPARING METHOD OF CARBON NANOTUBE USING SAME
    Publication number: 20240132357
    Abstract: An embodiment of the present specification provides a method for preparing a catalyst for preparing a carbon nanotube, comprising: (a) dissolving a main catalyst precursor, a support precursor, a cocatalyst precursor and a precipitation inhibitor in a solvent to prepare a precursor solution; and (b) pyrolyzing the precursor solution by spraying the precursor solution into a reactor, wherein a mole fraction of the precipitation inhibitor to the cocatalyst precursor is 0.1 to 1.5.
    Type: Application
    Filed: October 19, 2023
    Publication date: April 25, 2024
    Applicant: KOREA KUMHO PETROCHEMICAL CO., LTD.
    Inventors: Myung Hoon JEONG, Hyun Tae KIM, Sang Hyo RYU, Chung Heon JEONG, Wan Sung LEE, Woo Ram JUNG, Chang Gu KANG
  • Filler material for crowns, crown material containing same, and method of manufacturing thereof
    Patent number: 8431627
    Abstract: The present invention provides a composition for crown material including resin and a fine spherized composite glass powder. The fine composite glass powder of the present invention for such a configuration has superior qualities with regard to both sintering and optical characteristics, and can be used as a filler for crown material.
    Type: Grant
    Filed: August 14, 2009
    Date of Patent: April 30, 2013
    Assignee: Sukgyung AT Co., Ltd.
    Inventors: Hyung Sup Lim, Hyung Joon Lim, Young Cheol Yoo, Sang Heon Kang, Jeong Won Seo
  • Filler material for crowns, crown material containing same, and method of manufacturing thereof
    Publication number: 20100292364
    Abstract: The present invention provides a composition for crown material including resin and a fine spherized composite glass powder. The fine composite glass powder of the present invention for such a configuration has superior qualities with regard to both sintering and optical characteristics, and can be used as a filler for crown material.
    Type: Application
    Filed: August 14, 2009
    Publication date: November 18, 2010
    Inventors: Hyung Sup Lim, Hyung Joon Lim, Young Cheol Yoo, Sang Heon Kang, Jeong Won Seo