Patents by Inventor Ketack Kim

Ketack Kim 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).

  • Publication number: 20080081258
    Abstract: Carbon-coated composite material, manufacturing method thereof, positive electrode active material, and lithium secondary battery comprising the same wherein the composite material is a LixA1?xFeyB1?y(PO4)zC1?z composite carbon-coated by a process of using a carbon precursor in which hydrphilicity and hydrophobicity coexist on LixA1?xFeyB1?y(PO4)zC1?z particles, where 0<x?1, 0?y?1, and 0?z?1, A includes at least one element selected from a group consisting of alkali metals and alkali earth metals, B includes at least one selected from transition metals, C includes at least one selected from negative ions.
    Type: Application
    Filed: September 27, 2007
    Publication date: April 3, 2008
    Inventors: Ketack Kim, Hyun-Soo Kim, Hyemin Shin