Patents by Inventor Keniti Asai

Keniti Asai 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).

  • Decarbonization apparatus for coke oven chamber
    Patent number: 5013408
    Abstract: A decarbonization apparatus for a coking chamber of a coke oven, which comprises a lance connected to an oxygen-containing gas pressure source, and a support for supporting and inserting the lance into the coking chamber. The lance has at least one nozzle projecting therefrom in such manner that the gas ejected therefrom flows almost parallel to the side wall of the coking chamber.
    Type: Grant
    Filed: December 20, 1988
    Date of Patent: May 7, 1991
    Inventors: Keniti Asai, Hideaki Ito, Yoji Nakagawa, Yasutaka Shihara, Toshiaki Hodate, Akikazu Nakazaki