Patents by Inventor Haruaki Shimizu

Haruaki Shimizu 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 agent for use in ducted rocket engine
    Patent number: 4925909
    Abstract: A gas-generating agent for use in a ducted rocket engine essentially consists of an aliphatic polyester represented by the formula: ##STR1## or the formula: ##STR2## and a curing agent and optionally incorporating therein additives such as a curing catalyst.
    Type: Grant
    Filed: October 10, 1989
    Date of Patent: May 15, 1990
    Assignees: Japan as represented by Director General, Technical Research and Development Institute, Japan Defense Agency, Nippon Oil & Fats Co., Ltd.
    Inventors: Naminosuke Kubota, Haruaki Shimizu, Tadashi Sonobe, Goro Nakashita