Patents by Inventor Sumio Okamoto

Sumio Okamoto 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).

  • Composite propellant with 0.2.mu. or smaller metal fuel
    Patent number: 4302258
    Abstract: A composite-type propellant is disclosed. The propellant contains metal grains having an average grain size of not more than 0.2.mu. as an exothermic agent.
    Type: Grant
    Filed: November 2, 1979
    Date of Patent: November 24, 1981
    Assignee: Nissan Motor Company, Limited
    Inventors: Daizo Fukuma, Hisao Okamoto, Sumio Okamoto, Takemasa Koreki