Patents by Inventor Naoomi Yamaki

Naoomi Yamaki 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 converting nitrogen dioxide into nitrogen monoxide
    Patent number: 4073866
    Abstract: A process for converting nitrogen dioxide into nitrogen monoxide which comprises bringing a gas containing nitrogen dioxide into contact at a temperature ranging from 50.degree. C. to 400.degree. C. with a carbide of a metal selected from the group consisting of chromium, molybdenum, tungsten, vanadium, titanium, tantalum, silicon and boron or a composite carbide of such metals, thereby reducing nitrogen dioxide contained in the gas to nitrogen monoxide.
    Type: Grant
    Filed: October 18, 1976
    Date of Patent: February 14, 1978
    Assignee: Agency of Industrial Science and Technology of Japan
    Inventors: Naoomi Yamaki, Natsuko Futsuhara, Kazue Masuda, Koji Tsuchimoto