Patents by Inventor Yike Chen

Yike Chen 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).

  • Method for producing positive cathode material for lithium battery, and lithium battery
    Patent number: 7498098
    Abstract: A method for producing a cathode material for a lithium battery, characterized in that it comprises admixing a compound liberating a phosphate ion in a solution and metallic iron, and dissolving the metallic iron, followed by firing, thereby synthesizing ferric phosphate. The above method further comprising reacting a raw material mixture while grinding it down or refluxing can produce ferric phosphate cathode material having a fine particle diameter and exhibiting high activity, through a precursor before firing having a fine particle diameter.
    Type: Grant
    Filed: October 17, 2003
    Date of Patent: March 3, 2009
    Assignees: Japan as Represented by President of the University of Kyusyu, Mitsui Engineering & Shipbuilding Co., Ltd.
    Inventors: Shigeto Okada, Jun-ichi Yamaki, Yike Chen, Takafumi Yamamoto, Naoki Hatta
  • Method for preparing positive cathode material for lithium cell, and lithium cell
    Publication number: 20060127750
    Abstract: A method for producing a cathode material for a lithium battery, characterized in that it comprises admixing a compound liberating a phosphate ion in a solution and metallic iron, and dissolving the metallic iron, followed by firing, thereby synthesizing ferric phosphate. The above method further comprising reacting a raw material mixture while grinding it down or refluxing can produce ferric phosphate cathode material having a fine particle diameter and exhibiting high activity, through a precursor before firing having a fine particle diameter.
    Type: Application
    Filed: October 17, 2003
    Publication date: June 15, 2006
    Inventors: Shigeto Okada, Jun-Ichi Yamaki, Yike Chen, Takafumi Yamamoto, Naoki Hatta