Patents by Inventor Yasuhiro Terauchi

Yasuhiro Terauchi 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).

  • Formaldehyde detecting material
    Patent number: 7101716
    Abstract: A detecting material to detect formaldehyde at low concentration in the atmosphere in a short time is prepared by impregnating a base material containing at least silica gel with a coloring liquid containing 4-amino-4-phenyl-3-ene-2-one and a buffer solution and volatilizing the solvent.
    Type: Grant
    Filed: September 10, 2003
    Date of Patent: September 5, 2006
    Assignee: Riken Keiki Co., Ltd.
    Inventors: Nobuo Nakano, Tetsuya Kawabe, Yasuhiro Terauchi, Kouzi Suzuki
  • Formaldehyde detecting material
    Publication number: 20040197225
    Abstract: A detecting material to detect formaldehyde at low concentration in the atmosphere in a short time is prepared by impregnating a base material containing at least silica gel with a coloring liquid containing 4-amino-4-phenyl-3-ene-2-one and a buffer solution and volatilizing the solvent.
    Type: Application
    Filed: September 10, 2003
    Publication date: October 7, 2004
    Applicant: Riken Keiki Co., Ltd
    Inventors: Nobuo Nakano, Tetsuya Kawabe, Yasuhiro Terauchi, Kouzi Suzuki