Patents by Inventor Ryuji Shiozaki

Ryuji Shiozaki 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).

  • Positive electrode active material for lithium secondary cell and lithium secondary cell
    Publication number: 20040234857
    Abstract: A positive active material for lithium secondary batteries is provided with which a lithium secondary battery having a high energy density and excellent charge/discharge cycle performance can be obtained. Also provided is a lithium secondary battery having a high energy density and excellent charge/discharge cycle performance.
    Type: Application
    Filed: February 6, 2004
    Publication date: November 25, 2004
    Inventors: Ryuji Shiozaki, Akihiro Fujii, Kazuya Okabe, Toshiyuki Nukuda