Patents by Inventor Tsunemasa Inoue

Tsunemasa Inoue 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).

  • Charged particle emission source structure
    Patent number: 4721878
    Abstract: A charged particle emission source structure comprising a needle-like electrode for emission of charged particles, a reservoir for a liquid metal for wetting the surface of the needle-like electrode, heat-generating support members for heating the liquid metal and holding the reservoir or the needle-like electrode, and an extraction electrode for applying an electric field as between it and the needle-like electrode, which is characterized in that conductive partitions hardly wettable with the liquid metal are provided between the heat-generating support members and the reservoir or the needle-like electrode.
    Type: Grant
    Filed: June 4, 1986
    Date of Patent: January 26, 1988
    Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Hirotoshi Hagiwara, Akio Rokugawa, Naoyuki Okamoto, Tsunemasa Inoue