Patents by Inventor Yasutaka Arima

Yasutaka Arima 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 reducing nitrogen oxides and process for producing the same
    Patent number: 4225462
    Abstract: Disclosed is a water resistant catalyst for reducing nitrogen oxides with ammonia, which catalyst comprises barium sulfate and vanadium(IV)oxide sulfate which has peaks at 940 cm.sup.-1 and 510 cm.sup.-1 in an infrared absorption spectrum.
    Type: Grant
    Filed: September 13, 1978
    Date of Patent: September 30, 1980
    Assignee: Ube Industries, Ltd.
    Inventors: Sumio Umemura, Ryozo Kitoh, Shigeru Itoh, Yasutaka Arima, Kosuke Itoh, Hideaki Fukui