Patents by Inventor Takeshi Na Kamiya

Takeshi Na Kamiya 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 of treating fluorine compound
    Patent number: 6743957
    Abstract: Divalent and trivalent metal salts are added to the solution containing the fluorine compound and the polymer containing fluorine to precipitate the layered double hydroxide containing the fluorine compound between layers. At this time, the polymer containing fluorine suspended in the solution is also coagulated to precipitate. By these processes, the fluorine compound is fixed with high rate to separate from the solution with the polymer containing fluorine, and recovered if necessary. By this treatment process, the fluorine compound and the polymer containing fluorine, contained in the wastewater etc. can be separated easily, and the burden to environment or ecosystem can be reduced.
    Type: Grant
    Filed: June 26, 2002
    Date of Patent: June 1, 2004
    Assignee: JEMCO, Inc.
    Inventors: Kiyoshi Fuda, Toshiaki Matsunaga, Takeshi Na Kamiya, Kota Omori
  • Method of treating flourine compound
    Publication number: 20030006195
    Abstract: Divalent and trivalent metal salts are added to the solution containing the fluorine compound and the polymer containing fluorine to precipitate the layered double hydroxide containing the fluorine compound between layers. At this time, the polymer containing fluorine suspended in the solution is also coagulated to precipitate. By these processes, the fluorine compound is fixed with high rate to separate from the solution with the polymer containing fluorine, and recovered if necessary. By this treatment process, the fluorine compound and the polymer containing fluorine, contained in the wastewater etc. can be separated easily, and the burden to environment or ecosystem can be reduced.
    Type: Application
    Filed: June 26, 2002
    Publication date: January 9, 2003
    Inventors: Kiyoshi Fuda, Toshiaki Matsunaga, Takeshi Na Kamiya, Kota Omori