Patents Assigned to Khodia Inc.
  • Rare earth aggregate formulation using di-block copolmers
    Patent number: 7468413
    Abstract: The present invention is directed to controlling aggregation of rare earth particles using block copolymers and rare earth base particles. More particularly, invention is also directed to forming stable complexes of rare earth aggregates by complexing rare earth base particles with oppositely charged-neutral di-block copolymers. Even more particularly, invention is also directed to forming stable complexes of rare earth nanoparticles by complexing rare earth ultrafine particles with oppositely charged-neutral di-block copolymers.
    Type: Grant
    Filed: January 25, 2005
    Date of Patent: December 23, 2008
    Assignee: Khodia Inc.
    Inventors: Kazuhiko Yokota, Jean-Francois Berret, Bruno Tolla, Mikel Morvan