Patents by Inventor Toshiharu Fukunaga

Toshiharu Fukunaga 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).

  • Graphite composite and method for producing the same
    Patent number: 5888430
    Abstract: The graphite is a composite between graphite particles and other fine, solid element particles, in which the graphite particles account for at least 40 atomic % and the other element particles have particle sizes of 900 nm or smaller and are dispersed in said graphite particles. The other elements may be Li and Si. Preferably, a part of said other elements forms an intercalation compound with graphite. The composite is suitable for a negative electrode of lithium secondary batteries having large discharging capacity, and as adsorbent materials of adsorbing various substances.
    Type: Grant
    Filed: March 13, 1997
    Date of Patent: March 30, 1999
    Assignee: Kabushiki Kaisha Toyota Chuo Kenkyusho
    Inventors: Hiroaki Wakayama, Yoshiaki Fukushima, Jirou Mizuno, Uichiro Mizutani, Toshiharu Fukunaga