Patents by Inventor Bernard Nghiem

Bernard Nghiem 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).

  • Publication number: 20240001649
    Abstract: A method for manufacturing a solar-control laminated glass including an outer and inner glass plate and an interlayer sandwiched between the outer and the inner glass plate, the method including providing the outer glass plate and the inner glass plate; forming a solar-control coating on a surface of at least one of the outer glass plate and the inner glass plate; heating the outer glass plate and the inner glass plate; hot-bending the heated outer glass plate and the heated inner glass plate respectively to obtain a glass-plate shape suitable for a subsequent pairing; pairing the hot-bent outer glass plate and the hot-bent inner glass plate, and inserting the interlayer between the outer glass plate and the inner glass plate to form an assembly; and heating and pressurizing the assembly to laminate the outer glass plate, the interlayer, and the inner glass plate together to form a laminated glass.
    Type: Application
    Filed: November 10, 2021
    Publication date: January 4, 2024
    Inventors: Koucun ZHANG, Bernard NGHIEM, Guillaume GAUTHIER
  • Publication number: 20220348491
    Abstract: The computer-implemented method for glass bending includes obtaining a deviation of a real shape of a glass from a desired shape of the glass, the glass is produced by a glass bending process; determining a variation of at least one parameter associated with the glass bending process, at least in part based on the deviation of the real shape from the desired shape; and adjusting the at least one parameter based on the variation for compensation of the deviation.
    Type: Application
    Filed: September 24, 2020
    Publication date: November 3, 2022
    Inventors: Jia ZHU, Bernard NGHIEM, Zhiyi WANG, Romain DECOURCELLE
  • Patent number: 11352691
    Abstract: A method for locating, in a deposition line including a succession of compartments, an origin of a defect affecting a stack of thin layers deposited on a substrate in the compartments, in which each thin layer is deposited in one or more successive compartments of the deposition line and pieces of debris remaining on the surface of a thin layer deposited in a compartment act as masks for the subsequent depositions of thin layers and are the origin of defects, includes obtaining at least one image showing the defect, determining, from the at least one image, a signature of the defect, the signature containing at least one characteristic representative of the defect, and identifying at least one compartment of the deposition line liable to be the origin of the defect from the signature of the defect and using reference signatures associated with the compartments of the deposition line.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: June 7, 2022
    Assignee: SAINT-GOBAIN GLASS FRANCE
    Inventors: Bernard Nghiem, Yohan Faucillon, Gregoire Mathey, Thierry Kauffmann
  • Publication number: 20220024812
    Abstract: A process for preparing a glass product with marking and the glass product with marking obtained according to the process thereof are described. The process includes 1) coating an ink composition onto a surface of a glass substrate, and 2) heating the glass substrate obtained in step 1). The obtained glass product includes a marking that contains particles having a size of from 150 to 600 nm.
    Type: Application
    Filed: March 13, 2020
    Publication date: January 27, 2022
    Inventors: Haifeng CHEN, Marine BRUNET, Bertrand HEURTEFEU, Bernard NGHIEM
  • Patent number: 10882781
    Abstract: The invention relates to a process for obtaining a material comprising a substrate coated on at least one part of at least one of its faces with at least one functional layer, said process comprising: a step of depositing the or each functional layer, then a step of depositing a sacrificial layer on said at least one functional layer, then a step of heat treatment by means of radiation chosen from laser radiation or radiation from at least one flash lamp, said radiation having at least one treatment wavelength between 200 and 2500 nm, said sacrificial layer being in contact with the air during this heat treatment step, then a step of removing the sacrificial layer using a solvent, said sacrificial layer being a monolayer and being such that, before heat treatment, it absorbs at least one part of said radiation at said at least one treatment wavelength and that, after heat treatment, it is capable of being removed by dissolution and/or dispersion in said solvent.
    Type: Grant
    Filed: June 2, 2015
    Date of Patent: January 5, 2021
    Assignee: SAINT-GOBAIN GLASS FRANCE
    Inventors: Andriy Kharchenko, Bernard Nghiem, Nicolas Nadaud, Lorenzo Canova, Arnaud Huignard
  • Publication number: 20200339467
    Abstract: The present invention relates to a process for simultaneous bending of superposed glass sheets comprising the use of a parting agent that generates gas evolution under the bending conditions.
    Type: Application
    Filed: December 21, 2018
    Publication date: October 29, 2020
    Inventors: Bernard NGHIEM, Jean-Philippe SCHWEITZER
  • Publication number: 20190309409
    Abstract: A method for locating, in a deposition line including a succession of compartments, an origin of a defect affecting a stack of thin layers deposited on a substrate in the compartments, in which each thin layer is deposited in one or more successive compartments of the deposition line and pieces of debris remaining on the surface of a thin layer deposited in a compartment act as masks for the subsequent depositions of thin layers and are the origin of defects, includes obtaining at least one image showing the defect, determining, from the at least one image, a signature of the defect, the signature containing at least one characteristic representative of the defect, and identifying at least one compartment of the deposition line liable to be the origin of the defect from the signature of the defect and using reference signatures associated with the compartments of the deposition line.
    Type: Application
    Filed: June 22, 2017
    Publication date: October 10, 2019
    Applicant: SAINT-GOBAIN GLASS FRANCE
    Inventors: Bernard NGHIEM, Yohan FAUCILLON, Gregoire MATHEY, Thierry KAUFFMANN
  • Patent number: 10237919
    Abstract: The invention relates to a heating element comprising a substrate (1) equipped with a thin-film multilayer, the thin-film multilayer comprising a film (3) suited to being heated, this film having a sheet resistance of between 20 and 200 ?/square, the heating element also comprising two conductive collectors suited to being fed with electrical voltage, the film suited to being heated being a transparent electrically conductive oxide film and the film (3) suited to being heated not being machined and being electrically connected to the two conductive collectors, the film (3) suited to being heated having a thickness of between 50 nm and 300 nm. The invention allows a heating element, with a film suited to being heated that is simple to manufacture, to be easily installed in an electric vehicle or easily connected to the national grid.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: March 19, 2019
    Assignee: SAINT-GOBAIN GLASS FRANCE
    Inventors: Stephane Laurent, Emilie Charlet, Bernard Nghiem, Emmanuelle Peter
  • Publication number: 20180141858
    Abstract: The invention relates to a process for obtaining a material comprising a substrate coated on at least one part of at least one of its faces with at least one functional layer, said process comprising: a step of depositing the or each functional layer, then a step of depositing a sacrificial layer on said at least one functional layer, then a step of heat treatment by means of radiation chosen from laser radiation or radiation from at least one flash lamp, said radiation having at least one treatment wavelength between 200 and 2500 nm, said sacrificial layer being in contact with the air during this heat treatment step, then a step of removing the sacrificial layer using a solvent, said sacrificial layer being a monolayer and being such that, before heat treatment, it absorbs at least one part of said radiation at said at least one treatment wavelength and that, after heat treatment, it is capable of being removed by dissolution and/or dispersion in said solvent.
    Type: Application
    Filed: June 2, 2015
    Publication date: May 24, 2018
    Applicant: SAINT-GOBAIN GLASS FRANCE
    Inventors: Andriy KHARCHENKO, Bernard NGHIEM, Nicolas NADAUD, Lorenzo CANOVA, Arnaud HUIGNARD
  • Patent number: 9114425
    Abstract: A process for manufacturing a mask having submillimetric openings, in which: for a masking layer, a solution of colloidal nanoparticles that are stabilized and dispersed in a first solvent is deposited, the particles having a given glass transition temperature Tg, the drying of the masking layer is carried out at a temperature below the temperature Tg until a mask having a two-dimensional network of submillimetric openings is obtained with substantially straight mask area edges, in a zone referred to as a network mask zone, a zone free of masking is formed on the face by mechanical and/or optical removal of at least one peripheral portion of the network mask zone. The invention also relates to the network mask and the grid with an electroconductive solid zone that are thus obtained.
    Type: Grant
    Filed: September 24, 2009
    Date of Patent: August 25, 2015
    Assignee: SAINT-GOBAIN GLASS FRANCE
    Inventors: Georges Zagdoun, Bernard Nghiem, Emmanuel Valentin, Svetoslav Tchakarov
  • Patent number: 8822018
    Abstract: The invention relates to a process for obtaining a hydrophobic coating on a substrate, preferably consisting of a glass material, a ceramic or a glass-ceramic, said process being characterized in that it comprises: a) a first deposition step, consisting in applying a primer first layer essentially consisting of the silicon oxycarbide SiOxCy type on said substrate, said primer layer having an RMS surface roughness of greater than 4 nm; b) an activation step, in which said SiOxCy primer layer is activated by a plasma of a gas chosen from the noble gases of the Ar or He type and the gases N2, O2 or H2O or by a plasma of a mixture of these gases; and c) a second deposition step, in which a hydrophobic coating comprising at least one fluorocompound, preferably a fluoroalkylsilane, is deposited on said first layer. The invention also relates to hydrophobic glazing comprising or formed by a substrate as defined above, this glazing being in particular used as glazing for transport vehicles or for buildings.
    Type: Grant
    Filed: January 6, 2010
    Date of Patent: September 2, 2014
    Assignee: Saint-Gobain Glass France
    Inventors: Claire Thoumazet, Bernard Nghiem, Bruno Cordier
  • Patent number: 8808790
    Abstract: A method of manufacturing a submillimetric electroconductive grid coated with an overgrid on a substrate includes: the production of a mask having submillimetric openings by the deposition of a solution of colloidal polymeric nanoparticles that are stabilized and dispersed in a solvent, the polymeric particles having a glass transition temperature Tg and the drying of the masking layer at a temperature below the Tg until the mask, with straight edges, is obtained, the formation of the electroconductive grid by a deposition of electroconductive material, referred to as grid material, a heat treatment of the masking layer with the grid material at a temperature greater than or equal to 0.
    Type: Grant
    Filed: September 25, 2009
    Date of Patent: August 19, 2014
    Assignee: Saint-Gobain Glass France
    Inventors: Georges Zagdoun, Bernard Nghiem, Eddy Royer
  • Publication number: 20140116412
    Abstract: The invention relates to: a glazing substrate, characterised in that it is equipped with a layer consisting of crystallites of at least 25 nm in size, directly covered with a layer consisting of crystallites of at most 10 nm in size; its manufacturing process; and its application to a low-E glazing unit or in solar control.
    Type: Application
    Filed: March 30, 2012
    Publication date: May 1, 2014
    Applicant: SAINT GOBAIN GLASS FRANCE
    Inventors: Alexandre Popoff, Bernard Nghiem
  • Patent number: 8697186
    Abstract: A process for manufacturing a mask having submillimetric openings, in which: for a masking layer, a first solution of colloidal nanoparticles in a first solvent is deposited, the particles having a given glass transition temperature Tg, the drying of the masking layer, known as the first masking layer, is carried out at a temperature below said temperature Tg until a mask having a two-dimensional network of substantially straight-edged submillimetric openings, that defines a mask zone known as a network mask zone is obtained, a solid mask zone is formed by a liquid deposition, on the face, of a second masking zone, the solid mask zone being adjacent to and in contact with the network mask zone, and/or at least one cover zone is formed, the cover zone being in contact with the network mask zone, and/or after the drying of the first masking layer, a filled mask zone is formed by filling, via a liquid route, openings of a portion of the network mask zone.
    Type: Grant
    Filed: September 24, 2009
    Date of Patent: April 15, 2014
    Assignee: Saint-Gobain Glass France
    Inventors: Georges Zagdoun, Bernard Nghiem, Emmanuel Valentin, Svetoslav Tchakarov
  • Publication number: 20140091073
    Abstract: The invention relates to a heating element comprising a substrate (1) equipped with a thin-film multilayer, the thin-film multilayer comprising a film (3) suited to being heated, this film having a sheet resistance of between 20 and 200 ?/square, the heating element also comprising two conductive collectors suited to being fed with electrical voltage, the film suited to being heated being a transparent electrically conductive oxide film and the film (3) suited to being heated not being machined and being electrically connected to the two conductive collectors, the film (3) suited to being heated having a thickness of between 50 nm and 300 nm. The invention allows a heating element, with a film suited to being heated that is simple to manufacture, to be easily installed in an electric vehicle or easily connected to the national grid.
    Type: Application
    Filed: May 31, 2012
    Publication date: April 3, 2014
    Applicant: SAINT-GOBAIN GLASS FRANCE
    Inventors: Stephane Laurent, Emilie Charlet, Bernard Nghiem, Emmanuelle Peter
  • Patent number: 8470434
    Abstract: The invention relates to a transparent glass substrate, associated with a transparent electro-conductive layer capable of constituting an electrode of a photovoltaic cell and composed of a doped oxide, characterized by the interposition, between the glass substrate and the transparent electroconductive layer, of a mixed layer of one or more first nitride(s) or oxynitride(s), or oxide(s) or oxycarbide(s) having good adhesive properties with glass, and one or more second nitride(s) or oxynitride(s) or oxide(s) or oxycarbide(s) capable of constituting, possibly in the doped state, a transparent electroconductive layer; a method for producing this substrate; a photovoltaic cell, a tempered and/or curved glass, a shaped heating glass, a plasma screen and a flat lamp electrode having this substrate.
    Type: Grant
    Filed: January 14, 2008
    Date of Patent: June 25, 2013
    Assignee: Saint-Gobain Glass France
    Inventors: Bernard Nghiem, Emilie Viasnoff, Bertrand Kuhn, David Le Bellac, Anne Durandeau, Fabrice Abbott, Eddy Royer, Georges Zagdoun, Olivier Dubois
  • Publication number: 20130082221
    Abstract: A roofing product can include roofing granules that can include substrates and a coating covering the substrates of the roofing granules. The substrates can be in the form of base particles, such as ceramic base particles or proppants, or base particles having a coating with an L* of at least approximately 55. In a particular aspect, a coating at an exposed surface of the roofing granule can include a compound that includes a metallic element; and nitrogen, carbon, or a combination of nitrogen and carbon. In another aspect, the coating has a relatively low L*, reasonably high solar reflectance, and good emissivity. The coating can be formed on a substrate using a fluidized bed. In a particular aspect, the coating can be performed as a chemical vapor deposition or a sol-gel process. If needed or desired, the roofing granules can be doped to achieve their desired properties.
    Type: Application
    Filed: September 27, 2012
    Publication date: April 4, 2013
    Inventors: Rosiana Aguiar, Ming Liang Shiao, Bernard Nghiem, Regine Faure
  • Publication number: 20130032202
    Abstract: A material includes a glass substrate provided on at least one portion of one of its faces with a photocatalytic coating based on titanium dioxide that covers at most 15% of the subjacent surface, the photocatalytic coating being in the form of a two-dimensional network of interconnected strands.
    Type: Application
    Filed: January 10, 2011
    Publication date: February 7, 2013
    Applicant: SAINT-GOBAIN GLASS FRANCE
    Inventors: Bernard Nghiem, Rosiana Aguiar
  • Publication number: 20120282471
    Abstract: A roofing product can include roofing granules that can include base particles and a coating covering the base particles of the roofing granules. In a particular aspect, the coating can include a compound that includes a metallic element; and nitrogen, carbon, or a combination of nitrogen and carbon. In another aspect, the coating has a reflectivity of at least approximately 17% for a radiation having wavelengths in a range of 1000 nm to 2500 nm. In a further aspect, the particular coating has a coating reflectivity no greater than 99% of a TiO2 reflectivity for such radiation. A coating can be formed on a base particle of a roofing granule using a fluidized bed. In a particular aspect, coating can be performed as a chemical vapor deposition or a sol-gel process. If needed or desired, the roofing granules can be doped to achieve their desired properties.
    Type: Application
    Filed: May 5, 2011
    Publication date: November 8, 2012
    Applicant: Certain Teed Corporation
    Inventors: Rosiana Aguiar, Bernard Nghiem, Regine Faure
  • Publication number: 20120112225
    Abstract: A process for manufacturing an organic light-emitting diode device bearing a structure having a textured outer surface including a substrate made of inorganic glass that forms the support of the organic light-emitting diode device, includes: manufacturing the structure having a textured outer surface including: vapor depositing, onto the substrate made of inorganic glass, a first dielectric layer of at least 300 nm in thickness at a temperature greater than or equal to 100° C. so as to form protrusions, depositing onto the first layer a second smoothing dielectric layer, having a refractive index greater than or equal to that of the first layer, and made of an essentially amorphous material so as to sufficiently smooth the protrusions and to form the textured outer surface, and depositing, directly onto the smoothing layer, an electrode in the form of layer(s), so as to form a surface that conforms substantially to the smoothed outer surface.
    Type: Application
    Filed: April 2, 2010
    Publication date: May 10, 2012
    Applicant: SAINT-GOBAIN GLASS FRANCE
    Inventors: David Le Bellac, Bernard Nghiem, François-Julien Vermersch