Patents by Inventor Surawut Kitsumpun

Surawut Kitsumpun 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).

  • High current density ion source
    Patent number: 7439529
    Abstract: A high current density ion beam source includes a plasma source for generating plasma, a vacuum chamber coupled to the plasma source for extracting an ion beam from the plasma generated by the plasma source, a microwave field source configured to produce a microwave field that causes an ionization of gas within the plasma source, and a direct current voltage source configured to initiate an avalanche multiplication within the plasma source. The avalanche multiplication increases the ionization of gas in the plasma source and causes an increase in a current density of the ion beam.
    Type: Grant
    Filed: February 11, 2005
    Date of Patent: October 21, 2008
    Assignee: The Thailand Research Fund
    Inventors: Wirojana Tantraporn, Surawut Kitsumpun
  • High current density ion source
    Publication number: 20050218816
    Abstract: A high current density ion beam source includes a plasma source for generating plasma, a vacuum chamber coupled to the plasma source for extracting an ion beam from the plasma generated by the plasma source, a microwave field source configured to produce a microwave field that causes an ionization of gas within the plasma source, and a direct current voltage source configured to initiate an avalanche multiplication within the plasma source. The avalanche multiplication increases the ionization of gas in the plasma source and causes an increase in a current density of the ion beam.
    Type: Application
    Filed: February 11, 2005
    Publication date: October 6, 2005
    Inventors: Wirojana Tantraporn, Surawut Kitsumpun