Patents by Inventor Laurent Labrousse
Laurent Labrousse 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: 8420207Abstract: The invention relates to a substrate (10), provided with a thin-film multilayer comprising an alternation of n functional layers (40, 80) having reflection properties in the infrared and/or in solar radiation and (n+1) coatings (20, 60, 100), where n is an integer ?2, said coatings being composed of a plurality of dielectric layers (24, 26; 64, 66; 104), so that each functional layer (40, 80) is placed between two coatings (20, 60, 100), at least two functional layers (40, 80) each being deposited on a wetting layer (30, 70) itself deposited respectively directly onto a subjacent coating (20, 60), characterized in that two subjacent coatings (20, 60) each comprise at least one dielectric layer (24, 64) and at least one noncrystalline smoothing layer (26, 66) made from a material that is different from the material of said dielectric layer within each coating, said smoothing layer (26, 66) being in contact with said superjacent wetting layer (30, 70) and in that these two subjacent coatings (20, 60) being of dType: GrantFiled: March 6, 2007Date of Patent: April 16, 2013Assignee: Sanit-Gobain Glass FranceInventors: Pascal Reutler, Nicolas Nadaud, Estelle Martin, Laurent Labrousse
-
Patent number: 8147969Abstract: The invention relates to a substrate (1) provided with a thin-film multilayer comprising an alternation of n functional layers (3) having reflection properties in the infrared and/or in solar radiation, and (n+1) coatings (2, 5), where n?1, said coatings being composed of a layer or a plurality of layers (2a, 2b, 5a, 5b), characterized in that, in order to preserve the optical and/or mechanical quality of the multilayer in the case in which the substrate (1) provided with said multilayer is subjected to a heat treatment of the toughening, bending or annealing type, at least one of the functional layers (3) includes a blocker coating (4) consisting of: on the one hand, a “protection” layer made of a material capable of helping to protect the functional layer from oxidizing and/or nitriding attack, immediately in contact with said functional layer; and on the other hand, at least one “adhesion” layer made of a material capable of promoting adhesion, immediately in contact with said “protection” layer.Type: GrantFiled: April 27, 2005Date of Patent: April 3, 2012Assignee: Saint-Gobain Glass FranceInventors: Laurent LaBrousse, Eric Petitjean
-
Patent number: 7981516Abstract: The invention relates to a transparent substrate provided with a thin-film multilayer comprising at least one functional metal layer, especially a silver-based layer, having reflection properties in the infrared and/or in the solar radiation range, at least one metal barrier layer in contact with the functional layer and at least one upper dielectric layer, characterized in that at least one barrier layer is based on zirconium and in that the upper dielectric layer comprises at least one ZnO-based layer in contact with the functional layer or with the barrier layer.Type: GrantFiled: August 19, 2004Date of Patent: July 19, 2011Assignee: Saint-Gobain Glass FranceInventors: Laurent Labrousse, Nicolas Nadaud, Eric Petit Jean
-
Publication number: 20110100424Abstract: The subject of the invention is a transparent substrate (6), especially glass substrate, comprising an antireflection coating on at least one of its faces, which is made of a multilayer (A) of thin layers having alternately high and low refractive indices. The multilayer is characterized in that the high-index first layer (1) and/or the high-index third layer (3) are based on a zinc tin mixed oxide, with a ratio, expressed in atomic percent, of the tin to the zinc that is greater than 1.Type: ApplicationFiled: March 10, 2009Publication date: May 5, 2011Applicant: SAINT-GOBAIN GLASS FRANCEInventors: Stephanie Roche, Erwan Mahe, Laurent Labrousse
-
Patent number: 7884047Abstract: The invention relates to a structure, comprising a substrate supporting a layer with a photocatalytic and anti-soiling property, said layer being based on titanium dioxide (TiO2), on at least part of the surface thereof. Said structure is characterized in that the photocatalytic layer is coated with a non-porous thin layer, containing silicon and oxygen and having a coating capacity, providing a chemical and mechanical protection to the underlying photocatalytic layer, while maintaining the TiO2 photocatalytic activity.Type: GrantFiled: October 22, 2004Date of Patent: February 8, 2011Assignee: Saint-Gobain Glass FranceInventors: Laurent Labrousse, Nicolas Nadaud
-
Patent number: 7737080Abstract: The invention relates to a structure, comprising a substrate supporting a layer with a photocatalytic and anti-soiling property on at least part of the surface thereof, said layer being based on titanium dioxide (TiO2) which is at least partially crystallized in the anatase form thereof. Said structure is characterised in comprising a sublayer (SC) directly under at least one TiO2 layer, said sublayer having a crystallographic structure which provides assistance to crystallization by heteroepitaxial growth in the anatase form of the TiO2-based upper layer, the photocatalytic property being obtained without any heating step.Type: GrantFiled: October 22, 2004Date of Patent: June 15, 2010Assignee: Saint-Gobain Glass FranceInventors: Laurent Labrousse, Nicolas Nadaud
-
Publication number: 20090130409Abstract: The invention relates to a substrate (10), provided with a thin-film multilayer comprising an alternation of n functional layers (40, 80) having reflection properties in the infrared and/or in solar radiation and (n+1) coatings (20, 60, 100), where n is an integer ?2, said coatings being composed of a plurality of dielectric layers (24, 26; 64, 66; 104), so that each functional layer (40, 80) is placed between two coatings (20, 60, 100), at least two functional layers (40, 80) each being deposited on a wetting layer (30, 70) itself deposited respectively directly onto a subjacent coating (20, 60), characterized in that two subjacent coatings (20, 60) each comprise at least one dielectric layer (24, 64) and at least one noncrystalline smoothing layer (26, 66) made from a material that is different from the material of said dielectric layer within each coating, said smoothing layer (26, 66) being in contact with said superjacent wetting layer (30, 70) and in that these two subjacent coatings (20, 60) being of dType: ApplicationFiled: March 6, 2007Publication date: May 21, 2009Applicant: SAINT-GOBAIN GLASS FRANCEInventors: Pascal Reutler, Nicolas Nadaud, Estelle Martin, Laurent Labrousse
-
Publication number: 20080261056Abstract: The invention relates to a substrate provided with a mechanically resistant, long-lasting coating, and suitable for being handled by a user. Said substrate is characterised in that the coating comprises a first photocatalytic compound which is intimately associated with a second compound containing an energy jump between the upper level of the valence band thereof and the lower level of the conductive band thereof, corresponding to a wavelength in the visible field. The invention also relates to a glazing comprising said substrate, to the applications of the inventive substrate, and to the methods for the production thereof.Type: ApplicationFiled: April 12, 2005Publication date: October 23, 2008Applicant: SAINT-GOBAIN GLASS FRANCEInventors: Laurent Labrousse, Lethicia Gueneau, Andriy Kharchenko
-
Publication number: 20080115471Abstract: The invention relates to a method of modifying a layer having photocatalytic and anti-fouling properties which is based on titanium dioxide (TiO2) and which can absorb photons in the UV region and, in particular, in the UVA region, in order to render same capable of absorbing photons in the visible spectrum, said TiO2-based layer being applied to a substrate either directly or with the insertion of at least one functional sub-layer. The invention is characterised in that the TiO2-based layer is subjected to a heat treatment in an atmosphere comprising nitrogen or nitrogen and at least one reducing gas for a sufficient period of time in order to obtain the desired visible photon absorption property, said substrate and, if necessary, said sub-layer(s) having been selected for their ability to withstand the heat treatment.Type: ApplicationFiled: April 7, 2005Publication date: May 22, 2008Applicant: SAINT-GOBAIN GLASS FRANCEInventors: Laurent Labrousse, Lethicia Gueneau, Nicolas Nadaud
-
Publication number: 20070204949Abstract: The invention relates to a substrate (1) provided with a thin-film multilayer comprising an alternation of n functional layers (3) having reflection properties in the infrared and/or in solar radiation, and (n+1) coatings (2, 5), where n?1, said coatings being composed of a layer or a plurality of layers (2a, 2b, 5a, 5b), characterized in that, in order to preserve the optical and/or mechanical quality of the multilayer in the case in which the substrate (1) provided with said multilayer is subjected to a heat treatment of the toughening, bending or annealing type, at least one of the functional layers (3) includes a blocker coating (4) consisting of: on the one hand, a “protection” layer made of a material capable of helping to protect the functional layer from oxidizing and/or nitriding attack, immediately in contact with said functional layer; and on the other hand, at least one “adhesion” layer made of a material capable of promoting adhesion, immediately in contact with said “protection” layer.Type: ApplicationFiled: April 27, 2005Publication date: September 6, 2007Inventors: Laurent Labrousse, Eric Petitjean
-
Publication number: 20070148064Abstract: The invention relates to a structure, comprising a substrate supporting a layer with a photocatalytic and anti-soiling property, said layer being based on titanium dioxide (TiO2), on at least part of the surface thereof. Said structure is characterised in that the photocatalytic layer is coated with a non-porous thin layer, containing silicon and oxygen and having a coating capacity, providing a chemical and mechanical protection to the underlying photocatalytic layer, whilst maintaining the TiO2 photocatalytic activity.Type: ApplicationFiled: October 22, 2004Publication date: June 28, 2007Inventor: Laurent LABROUSSE
-
Publication number: 20070129248Abstract: The invention relates to a structure, comprising a substrate supporting a layer with a photocatalytic and anti-soiling property on at least part of the surface thereof, said layer being based on titanium dioxide (TiO2) which is at least partially crystallized in the anatase form thereof. Said structure is characterised in comprising a sublayer (SC) directly under at least one TiO2 layer, said sublayer having a crystallographic structure which provides assistance to crystallization by heteroepitaxial growth in the anatase form of the TiO2-based upper layer, the photocatalytic property being obtained without any heating step.Type: ApplicationFiled: October 22, 2004Publication date: June 7, 2007Inventors: Laurent Labrousse, Nicolas Nadaud
-
Publication number: 20070104965Abstract: The invention relates to a transparent substrate provided with a thin-film multilayer comprising at least one functional metal layer, especially a silver-based layer, having reflection properties in the infrared and/or in the solar radiation range, at least one metal barrier layer in contact with the functional layer and at least one upper dielectric layer, characterized in that at least one barrier layer is based on zirconium and in that the upper dielectric layer comprises at least one ZnO-based layer in contact with the functional layer or with the barrier layer.Type: ApplicationFiled: August 19, 2004Publication date: May 10, 2007Inventors: Laurent Labrousse, Nicolas Nadaud, Eric Petitjean
-
Publication number: 20060201203Abstract: The invention relates to a method for preparing a material exhibiting photocatalytic properties and comprising at least partially crystallised titanium oxide, in particular in the form of anatase at temperatures higher than 600° C. Said invention also relates to a glass sheet whose at least one face is coated with a material which contains titanium oxide and is thermally treatable at a temperature higher than 600° C. by such methods as quenching and/or bowing, but preserving the photocatalytic activity and required optical properties thereof for a clean-surface glazing. The invention also relates to a monolithic foliated glazing which is simple or multilayer and comprises said glass sheet, and to the use of said glazing for a building, a transport vehicle, as an ordinary glazing, for interior use, street furniture, mirror, a display system screen and photovolatic glazing.Type: ApplicationFiled: July 21, 2004Publication date: September 14, 2006Applicant: SAINT-GOBAIN GLASS FRANCEInventors: Laurent Labrousse, Nicolas Nadaud
-
Patent number: 6919123Abstract: A non-opaque plastic card, having a first sheet layer with a front surface and a back surface, and a second sheet layer having a front surface and a back surface. A filter dye is located on the first sheet layer and/or second sheet layer, and allows visible light to pass through, while blocking infrared light from passing through the card. Graphical elements are printed on different surfaces of the card, with different combinations of backgrounds, to produce 3-dimensional effects.Type: GrantFiled: November 28, 2001Date of Patent: July 19, 2005Assignee: GemplusInventors: Laurent Labrousse, Cindy Rotondo, Christopher Bailey, Maureen Kane, Denise Bosler
-
Publication number: 20030017312Abstract: A non-opaque plastic card, having a first sheet layer with a front surface and a back surface, and a second sheet layer having a front surface and a back surface. A filter dye is located on the first sheet layer and/or second sheet layer, and allows visible light to pass through, while blocking infrared light from passing through the card. Graphical elements are printed on different surfaces of the card, with different combinations of backgrounds, to produce 3-dimensional effects.Type: ApplicationFiled: November 28, 2001Publication date: January 23, 2003Inventors: Laurent Labrousse, Cindy Rotondo, Christopher Bailey, Maureen Kane, Denise Bosler