Patents by Inventor Johnson Ahn

Johnson Ahn 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).

  • Fullerene compound, manufacturing method, and use
    Patent number: 5851503
    Abstract: Fullerene compounds such as C60 are dissolved into solvents such as toluene in concentration of 1.times.10-3 mol/L or more. When the solution is coagulated, fullerene associated bodies are formed. After the re-dissolution of the solution, the associated bodies are excited by laser beam, and the resultant is cluster compounds of fullerene having specific number of monomers, such as 23 and 53. The cluster is stable and separable from the solution.
    Type: Grant
    Filed: September 9, 1996
    Date of Patent: December 22, 1998
    Assignees: Ishikawa Seisakusho, Tadaoki Mitani
    Inventors: Tadaoki Mitani, Keisuke Suzuki, Johnson Ahn, Yoshihiro Iwasa