Patents by Inventor Masahiro Kawahata

Masahiro Kawahata 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).

  • Liquefied gas overcharge prevention device
    Patent number: 4423750
    Abstract: A liquefied gas overcharge prevention device provided with a safety valve. The overcharge prevention system comprises, in combination, a conventional pressurized gas tank charging valve having a liquid level responsive gas inlet valve mechanism, a first relief valve for regulating pressure within the tank and a second relief valve for regulating back pressure within the charging valve.
    Type: Grant
    Filed: November 3, 1981
    Date of Patent: January 3, 1984
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Mitsuo Morizumi, Masahiro Kawahata