Patents Assigned to Merck Kanto Advanced Chemical LTD
  • Process for the preparation of ultra-fine powders of metal oxides
    Patent number: 6139816
    Abstract: A novel process for the preparation of ultra-fine powders of metal oxide wherein a surfactant is added to the solution for the preparation of the metal oxide to provide nanometer metal oxide powders without the utilization of vacuum or high pressure conditions is disclosed.
    Type: Grant
    Filed: June 9, 1997
    Date of Patent: October 31, 2000
    Assignee: Merck Kanto Advanced Chemical LTD
    Inventors: Ru-Shi Liu, Shich-Chang Suen, Yu-Hua Kao