Patents by Inventor Takafumi Inaguchi

Takafumi Inaguchi 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).

  • Publication number: 20120115039
    Abstract: A solid secondary battery that includes a positive electrode layer, a solid electrolyte layer including an oxide-based solid electrolyte, and a negative electrode layer. At least one of the positive electrode layer and the negative electrode layer, and the solid electrolyte layer are joined by sintering. At least one of the positive electrode layer and the negative electrode layer includes an electrode active material, and a conductive agent containing a carbon material, and the conductive agent includes a carbon material which has a specific surface area of 1000 m2/g or less.
    Type: Application
    Filed: January 18, 2012
    Publication date: May 10, 2012
    Inventors: Masutaka Ouchi, Koichi Watanabe, Kunio Nishida, Hitomi Nishida, Takafumi Inaguchi
  • Publication number: 20120061612
    Abstract: A method for producing an electrode active material for a secondary battery, which contains a lithium containing phosphate compound with a olivine-type framework represented by LiMPO4 (wherein, M is one or more elements selected from the group consisting of Mn, Fe, Co, Cu, Ni, and Mg), and in the method, a mixed powder of starting raw materials for the electrode active material for a secondary battery is subjected to firing at a first temperature, and then to grinding, and further subjected to firing at a second temperature higher than the first temperature. The first firing step includes a step of heating the mixed powder of the raw materials until a volatile component is removed almost completely.
    Type: Application
    Filed: September 6, 2011
    Publication date: March 15, 2012
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventors: Makoto Yoshioka, Masutaka Ouchi, Takeshi Hayashi, Kunio Nishida, Hitomi Nishida, Takafumi Inaguchi