Patents by Inventor Mikihiro Takagi

Mikihiro Takagi 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: 20140170497
    Abstract: A problem to be solved is to enhance the charge and discharge characteristics and rate characteristics of a B-type titanium oxide (TiO2(B)) powder by a simple treatment and to provide a B-type titanium oxide powder that can be suitably used as a negative electrode material for a lithium ion battery. A B-type titanium oxide powder is allowed to undergo a reaction under a fluorine-containing gas atmosphere at 0° C. to 200° C. for 1 minute to 10 days to obtain a surface-fluorinated B-type titanium oxide powder. It is preferred that the fluorination treatment is performed at 0.01 atm to 2 atm. It is preferred that a gas containing a fluorine compound selected from a fluorine (F2) gas, a nitrogen trifluoride (NF3) gas, a perfluorotrimethylamine (N(CF3)3) gas, a chlorine trifluoride (ClF3) gas and the like is used as the fluorine-containing gas.
    Type: Application
    Filed: July 26, 2012
    Publication date: June 19, 2014
    Applicants: TOYO TANSO CO., LTD., THE DOSHISHA
    Inventors: Minoru Inaba, Akimasa Tasaka, Morihiro Saito, Mikihiro Takagi, Hitoshi Takebayashi, Yoshio Syodai