Patents by Inventor Christophe Largeron

Christophe Largeron 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 MANUFACTURING OPTOELECTRONIC STRUCTURES PROVIDED WITH COPLANAR LIGHT EMITTING DIODES
    Publication number: 20200203556
    Abstract: The invention relates to a method of manufacturing at least one optoelectronic structure on a support substrate. In particular, this invention relates to manufacturing of an optoelectronic structure that has a plurality of coplanar light emitting diodes, and formed from a succession of light emitting stacks. Therefore this invention uses a cavity, the bottom of which has a staged profile, such that the formation of the succession of light emitting stacks reproduces the staged profile of the bottom of the cavity, on its exposed face. Performance of a step to level the succession of light emitting stacks relative to a reference level defined by the exposed surface portion vertically in line with the deepest step, then makes it possible to reveal a set of coplanar light emitting diodes.
    Type: Application
    Filed: December 16, 2019
    Publication date: June 25, 2020
    Applicants: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Guy FEUILLET, Benjamin DAMILANO, Jean-Yves DUBOZ, Christophe LARGERON
  • Photodetection device
    Patent number: 8884271
    Abstract: The present invention relates to a photodetector for detecting an infrared-light emission having a given wavelength (?) comprising a multilayer with: a layer (11) of a partially absorbent semiconductor; a spacer layer (12) made of a material that is transparent to said wavelength; and a structured metallic mirror (13), the distance (g) between the top of said mirror and said spacer layer being smaller than ? and said mirror comprising a network of holes defining an array of metallic reliefs with a pitch P of between 0.5 ?/nSC and 1.5 ?/nSC, where nSC is the real part of the refractive index of the semiconductor, a relief width L of between 9P/10 and P/2 and a hole depth h of between ?/100 and ?/15.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: November 11, 2014
    Assignee: Commissariat a l'Energie Atomique et aux Energies Alternatives
    Inventors: Roch Espiau De Lamaestre, Christophe Largeron
  • PHOTODETECTION DEVICE
    Publication number: 20130264543
    Abstract: The present invention relates to a photodetector for detecting an infrared-light emission having a given wavelength (?) comprising a multilayer with: a layer (11) of a partially absorbent semiconductor; a spacer layer (12) made of a material that is transparent to said wavelength; and a structured metallic mirror (13), the distance (g) between the top of said mirror and said spacer layer being smaller than ? and said mirror comprising a network of holes defining an array of metallic reliefs with a pitch P of between 0.5 ?/nSC and 1.5 ?/nSC, where nSC is the real part of the refractive index of the semiconductor, a relief width L of between 9P/10 and P/2 and a hole depth h of between ?/100 and ?/15.
    Type: Application
    Filed: December 16, 2011
    Publication date: October 10, 2013
    Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Roch Espiau De Lamaestre, Christophe Largeron
  • Method for cleaning surfaces,metallic surfaces in particular
    Publication number: 20040168708
    Abstract: This invention relates to a process for cleaning surfaces, notably metal surfaces.
    Type: Application
    Filed: November 21, 2003
    Publication date: September 2, 2004
    Inventors: Franck Rouppert, Christophe Largeron, Annie Rivoallan
  • Method of decontamination or preventing contamination of surfaces by an exchange mechanism
    Publication number: 20040149319
    Abstract: The invention relates to a method of decontamination or preventing contamination of surfaces by an exchange mechanism.
    Type: Application
    Filed: November 21, 2003
    Publication date: August 5, 2004
    Inventors: Franck Rouppert, Annie Rivoallan, Christophe Largeron
  • Polymer film, preparation method thereof and method for protecting and cleaning a surface using said film
    Publication number: 20040115423
    Abstract: The present invention relates to a film, dispersible as an emulsion in water, comprising at least one polymer and containing at least one chelating or complexing agent.
    Type: Application
    Filed: September 17, 2003
    Publication date: June 17, 2004
    Inventors: Franck Rouppert, Annie Rivoallan, Christophe Largeron