Patents by Inventor Keichi Kohama

Keichi Kohama 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).

  • Battery with tin-based negative electrode materials
    Publication number: 20060083986
    Abstract: An improved battery comprises a negative electrode having a tin-containing material supported by a support material, a positive electrode and an electrolyte (such as a molten salt electrolyte) located between the positive electrode and the negative electrode. The tin-containing material can separated from the electrolyte by a protection layer, which, for example, can slow decomposition of the electrolyte.
    Type: Application
    Filed: March 15, 2005
    Publication date: April 20, 2006
    Inventors: Wen Li, Keiichi Yokouchi, Keichi Kohama
  • Corrosion protection using protected electron collector
    Publication number: 20060019168
    Abstract: A battery comprises a first electrode, a second electrode, an electrolyte, and an electron collector associated with the first electrode, the electron collector having a surface treatment, such as a protection layer, that reduces corrosion of the electron collector by the molten salt electrolyte.
    Type: Application
    Filed: March 15, 2005
    Publication date: January 26, 2006
    Inventors: Wen Li, Yutaka Oyama, Keichi Kohama