Patents by Inventor Gurvan Simon

Gurvan Simon 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).

  • Method of measuring porosity by means of ellipsometry and device for implementing one such method
    Patent number: 7568379
    Abstract: The method for measuring the porosity of an element is performed by means of a measuring device comprising a measuring chamber in which the element is disposed, a solvent tank associated with an adsorption valve, and a pump associated with a desorption valve. The measuring method comprises measurement of the pressure in the chamber by means of a pressure sensor, and a cycle for measuring the porosity by ellipsometry at different predetermined pressure. During this measuring cycle, a pressure controller controls opening of the adsorption and desorption valves according to the measured pressure. The relative pressure in the chamber is successively regulated at different predetermined values, while maintaining a continuous flow of solvent in the chamber between the tank and the pump.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: August 4, 2009
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Gurvan Simon, Frédéric Ferrieu
  • Method of measuring porosity by means of ellipsometry and device for implementing one such method
    Publication number: 20090019921
    Abstract: The method for measuring the porosity of an element is performed by means of a measuring device comprising a measuring chamber in which the element is disposed, a solvent tank associated with an adsorption valve, and a pump associated with a desorption valve. The measuring method comprises measurement of the pressure in the chamber by means of a pressure sensor, and a cycle for measuring the porosity by ellipsometry at different predetermined pressure. During this measuring cycle, a pressure controller controls opening of the adsorption and desorption valves according to the measured pressure. The relative pressure in the chamber is successively regulated at different predetermined values, while maintaining a continuous flow of solvent in the chamber between the tank and the pump.
    Type: Application
    Filed: April 28, 2006
    Publication date: January 22, 2009
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE
    Inventors: Gurvan Simon, Frederic Ferrieu