Patents by Inventor Bruno Bureau

Bruno Bureau 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).

  • Patent number: 10526505
    Abstract: A non-crosslinked, gelled carbonaceous composition and a pyrolyzed composition respectively forming an aqueous polymer gel and the pyrolysate thereof in the form of porous carbon is provided. Also provided is a production method thereof, to a porous carbon electrode formed by the pyrolyzed composition, and to a supercapacitor containing the electrodes. The gelled, non-crosslinked composition (G2) is based on a resin created at least partly from polyhydroxybenzene(s) R and formaldehyde(s) F and comprises at least one hydrosoluble cationic polyelectrolyte P. The composition forms a rheofluidifying physical gel. A pyrolyzed carbonaceous composition having a carbon monolith, is the product of coating, crosslinking, drying then pyrolysis of the non-crosslinked gelled composition, the carbon monolith being predominantly microporous and able to form a supercapacitor electrode having a thickness of less than 1 mm.
    Type: Grant
    Filed: October 8, 2013
    Date of Patent: January 7, 2020
    Assignee: Hutchinson
    Inventors: Bruno Dufour, Yannick Bureau, Hugo Dorie, Pierre-Axel Parodat, Philippe Sonntag
  • Publication number: 20190382614
    Abstract: The invention relates to a noncrosslinked gelled carbonaceous composition and a pyrolyzed composition respectively forming an aqueous polymer gel and the pyrolysate thereof in the form of porous carbon. The invention also relates to the production method thereof, to a porous carbon electrode formed by the pyrolyzed composition, and to a supercapacitor containing said electrodes. The gelled, noncrosslinked composition (G2) is based on a resin created at least partly from polyhydroxybenzene(s) R and formaldehyde(s) F and comprises at least one hydrosoluble cationic polyelectrolyte P. According to the invention, the composition forms a rheofluidifying physical gel. A pyrolyzed carbonaceous composition according to the invention, consisting of a carbon monolith, is the product of coating, crosslinking, drying and pyrolysis of the non-crosslinked gelled composition, the carbon monolith being predominantly microporous and able to form a supercapacitor electrode having a thickness of less than 1 mm.
    Type: Application
    Filed: August 30, 2019
    Publication date: December 19, 2019
    Applicant: Hutchinson
    Inventors: Bruno Dufour, Yannick Bureau, Hugo Dorie, Pierre-Axel Parodat, Philippe Sonntag
  • Publication number: 20130102066
    Abstract: The invention relates to a fibre sensor that enables the propagation of infrared light at at least one wavelength of 0.8 to 25 micrometres, the fibre successively comprising along its length a first infrared waveguide section (23), a second detection section (25) intended to come into contact with an external environment in order to detect infrared signatures interfering with the propagation of the evanescent waves propagating along the fibre (2), and a third infrared waveguide section (27). The invention is characterized in that, in the second fibre section (25) that has the detection role, the fibre (2) is constituted of a curved part, the radios of curvature of which is locally less than 2.3 millimetres.
    Type: Application
    Filed: March 31, 2011
    Publication date: April 25, 2013
    Applicants: Centre National de la Recherche Scientifique(CNRS), UNIVERSITE DE RENNES 1
    Inventors: Bruno Bureau, Catherine Boussard, Olivier Loreal, Patrick Houizot, Jean-Luc Adam, Jacques Lucas