Patents by Inventor Chang-Yeol HAN

Chang-Yeol HAN 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).

  • Metal oxide nanoparticles surface-treated with metal ion, quantum dot-light-emitting device comprising the same and method for fabricating the same
    Patent number: 11870004
    Abstract: The metal oxide nanoparticle includes a Zn-containing metal Me1 oxide nanoparticle of Zn1-xMe1xO (0?x?0.5) composition, and a metal Me2 ion surface treatment layer formed on a surface of the nanoparticle. Here, the metal Me1 is any one selected from Li, Be, Na, Mg, Al, K, Ca, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Ga, Ge, Rb, Sr, Zr, Nb, Mo, Ru, Rh, Pd, Ag, In, Sn, Sb, Ba and a combination thereof, and the metal Me2 is any one selected from Li, Be, Na, Mg, Al, K, Ca, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, Ge, Rb, Sr, Zr, Nb, Mo, Ru, Rh, Pd, Ag, In, Sn, Sb, Ba and a combination thereof.
    Type: Grant
    Filed: March 12, 2020
    Date of Patent: January 9, 2024
    Assignee: HONGIK UNIVERSITY INDUSTRY-ACADEMIA COOPERATION FOUNDATION
    Inventors: Hee-Sun Yang, Chang-Yeol Han
  • METAL OXIDE NANOPARTICLES SURFACE-TREATED WITH METAL ION, QUANTUM DOT-LIGHT-EMITTING DEVICE COMPRISING THE SAME AND METHOD FOR FABRICATING THE SAME
    Publication number: 20200321490
    Abstract: The metal oxide nanoparticle includes a Zn-containing metal Me1 oxide nanoparticle of Zn1-xMe1xO(0?x?0.5) composition, and a metal Me2 ion surface treatment layer formed on a surface of the nanoparticle. Here, the metal Me1 is any one selected from Li, Be, Na, Mg, Al, K, Ca, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Ga, Ge, Rb, Sr, Zr, Nb, Mo, Ru, Rh, Pd, Ag, In, Sn, Sb, Ba and a combination thereof, and the metal Me2 is any one selected from Li, Be, Na, Mg, Al, K, Ca, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, Ge, Rb, Sr, Zr, Nb, Mo, Ru, Rh, Pd, Ag, In, Sn, Sb, Ba and a combination thereof.
    Type: Application
    Filed: March 12, 2020
    Publication date: October 8, 2020
    Inventors: Hee-Sun YANG, Chang-Yeol HAN