Patents by Inventor Hagihara Hiroyuki

Hagihara Hiroyuki 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).

  • Highly active photocatalyst particles, method of production therefor, and use thereof
    Patent number: 7414009
    Abstract: A method of producing composite particles of titanium dioxide and a compound inactive as a photocatalyst, comprising the steps of preparing a water based slurry of pH 3 to 5 comprising titanium dioxide, preparing a water based solution comprising a compound inactive as a photocatalyst, and reacting the slurry and the water based solution together at a pH within a range from 4 to 10 is provided, together with highly active photocatalyst particles produced using such a method, and potential uses of such photocatalyst particles.
    Type: Grant
    Filed: May 22, 2003
    Date of Patent: August 19, 2008
    Assignee: Showa Denko K.K.
    Inventors: Jun Tanaka, Masayuki Sanbayashi, Yoshinori Ueyoshi, Hagihara Hiroyuki