Patents by Inventor Katsura Torii

Katsura Torii 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).

  • Photocatalyst, process for producing the same and multifunctional members
    Patent number: 6306796
    Abstract: A titanium dioxide photocatalyst having a monoclinic crystal structure is prepared by subjecting a titanium dioxide hydrate fiber to a heat treatment at a temperature of 80 to 350° C., and then further heat treatment at a temperature of 360 to 650° C., and a multifunctional material is obtained by use of the photocatalyst.
    Type: Grant
    Filed: July 15, 1999
    Date of Patent: October 23, 2001
    Assignee: Otsuka Kagaku Kabushiki Kaisha
    Inventors: Masayoshi Suzue, Minoru Aki, Katsura Torii