Patents by Inventor Kenshi Noda

Kenshi Noda 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).

  • Production process of material for lithium-ion secondary batteries, material obtained by the process, and batteries
    Patent number: 6485864
    Abstract: Boron-substituted graphite, which contains N-bonded boron atoms in a small proportion relative to whole substituted boron atoms, is produced by heating a feed fine particulate mixture of an infusibilized carbonaceous material and a boron compound such that the carbonaceous material is carbonized into a carbon structure, raising a temperature of the resulting heated fine particulate mixture promptly to a graphitization treatment temperature in an inert atmosphere unreactive with boron, retaining the graphitization treatment temperature for a time sufficient to allow graphitization of the carbon structure to proceed to a desired extent, and then quickly cooling the resulting graphitized mixture. The boron-substituted graphite is useful as a negative electrode in a lithium-ion secondary battery.
    Type: Grant
    Filed: February 11, 2000
    Date of Patent: November 26, 2002
    Assignee: Adchemco Corporation
    Inventors: Kunio Miyazawa, Masayasu Nagoshi, Kenshi Noda, Takaaki Kondo, Tetsuo Shiode, Hidetoshi Morotomi, Hiromi Okamoto, Yasuhiro Mogi, Kazuteru Tabayashi