Patents by Inventor Hiroyuki Matuura

Hiroyuki Matuura 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).

  • Process for treating waste water by wet oxidations
    Patent number: 4699720
    Abstract: Waste water containing at least two kinds of components among suspended solids, ammonia and chemically oxidizable substances is treated in a liquid phase oxidation in the presence of a catalyst supported by a carrier of honeycomb construction.
    Type: Grant
    Filed: December 1, 1986
    Date of Patent: October 13, 1987
    Assignee: Osaka Gas Company Limited
    Inventors: Yoshiaki Harada, Akio Nakashiba, Hiroyuki Matuura, Teizou Okino, Hajime Fujitani, Kenichi Yamasaki, Yasuhumi Doi, Shigenobu Yurugi