Patents by Inventor Kenji Sumikawa

Kenji Sumikawa 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).

  • Gas generating charge and a process for producing the same
    Patent number: 4408534
    Abstract: A gas generating propellant charge which is made by piling explosive powder sheets having a plurality of projections on at least one surface thereof so as to make contact them with each other is excellent in firing characteristics, and the explosive powders in the gas generating propellant charge can be burnt in a short time, thereby generating a large amount of gas.
    Type: Grant
    Filed: August 27, 1981
    Date of Patent: October 11, 1983
    Assignee: Nippon Oil and Fats Co., Ltd.
    Inventors: Ikuo Araki, Teruo Kanazawa, Shinji Ito, Kenji Sumikawa