Patents by Inventor Kazuyasu Yabuki

Kazuyasu Yabuki 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).

  • Catalyst for the reduction of nitrogen oxides and method for the production thereof
    Patent number: 4093561
    Abstract: Disclosed is a substance which is obtained by calcining an iron hydroxide or a water-containing iron oxide and coating the surface of the resultant calcined product with alumina. This substance is useful as a catalyst in the removal of nitrogen oxides from an exhaust gas containing the nitrogen oxides.
    Type: Grant
    Filed: February 1, 1977
    Date of Patent: June 6, 1978
    Assignee: Kyushu Refractories Co., Ltd.
    Inventors: Yasuo Nishikawa, Akira Watanabe, Tetsuya Sugimoto, Kazuyasu Yabuki, Yoshio Hatayama