Patents by Inventor Wilfried Kaiser

Wilfried Kaiser 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: 6783876
    Abstract: A layer stack for the surface coating of transparent substrates, in particular panes of glass, has at least one metal oxide composite layer produced by reactive cathodic sputtering and contains Zn oxide and Sn oxide. Relative to the total amount of metal, this metal oxide composite layer contains from 0.5 to 6.5% by weight of one or more of the elements Al, Ga, In, B, Y, La, Ge, Si, P, As, Sb, Bi, Ce, Ti, Zr, Nb and Ta. In a layer stack which has a silver layer as a functional layer, the metal oxide composite layer may be used as an upper and/or lower antireflection layer, as a diffusion barrier layer, as a sublayer of an antireflection layer and/or as an upper cover layer.
    Type: Grant
    Filed: January 30, 2003
    Date of Patent: August 31, 2004
    Assignee: Saint-Gobain Vitrage
    Inventors: Heinz Schicht, Uwe Schmidt, Wilfried Kaiser, Herbert Schindler, Rolf Pfannkuchen
  • Publication number: 20030143435
    Abstract: A layer stack for the surface coating of transparent substrates, in particular panes of glass, has at least one metal oxide composite layer produced by reactive cathodic sputtering and contains Zn oxide and Sn oxide. Relative to the total amount of metal, this metal oxide composite layer contains from 0.5 to 6.5% by weight of one or more of the elements Al, Ga, In, B, Y, La, Ge, Si, P, As, Sb, Bi, Ce, Ti, Zr, Nb and Ta. In a layer stack which has a silver layer as a functional layer, the metal oxide composite layer may be used as an upper and/or lower antireflection layer, as a diffusion barrier layer, as a sublayer of an antireflection layer and/or as an upper cover layer.
    Type: Application
    Filed: January 30, 2003
    Publication date: July 31, 2003
    Applicant: St. Gobrain, Vitrage
    Inventors: Heinz Schicht, Uwe Schmidt, Wilfried Kaiser, Herbert Schindler, Rolf Pfannkuchen
  • Patent number: 6541133
    Abstract: A layer stack for the surface coating of transparent substrates, in particular panes of glass, has at least one metal oxide composite layer produced by reactive cathodic sputtering and contains Zn oxide and Sn oxide. Relative to the total amount of metal, this metal oxide composite layer contains from 0.5 to 6.5% by weight of one or more of the elements Al, Ga, In, B, Y, La, Ge, Si, P, As, Sb, Bi, Ce, Ti, Zr, Nb and Ta. In a layer stack which has a silver layer as a functional layer, the metal oxide composite layer may be used as an upper and/or lower antireflection layer, as a diffusion barrier layer, as a sublayer of an antireflection layer and/or as an upper cover layer.
    Type: Grant
    Filed: June 22, 2000
    Date of Patent: April 1, 2003
    Assignee: Saint-Gobain Vitrage
    Inventors: Heinz Schicht, Uwe Schmidt, Wilfried Kaiser, Herbert Schindler, Rolf Pfannkuchen
  • Patent number: 6432545
    Abstract: The invention is a transparent substrate provided with a multilayer stack having thermal properties, especially solar-control or low-emissivity properties. The stack comprises at least one silver-based functional layer surrounded by at least two coatings made of dielectric material, with the presence of thin metal layers between the functional layer and at least one of the coatings made of dielectric material. A preferred stack is D1/ZnO/Ag/AlM/D2/ZnM′O, with AlM representing an aluminum alloy, ZnM′O a mixed oxide of zinc and at least one other metal, with D1 and D2 being a layer or a superposition of layers comprising at least one layer made of a metal oxide, silicon nitride, metal nitride or made of a mixed silicon/metal nitride.
    Type: Grant
    Filed: July 13, 2000
    Date of Patent: August 13, 2002
    Assignee: Saint-Gobain Vitrage
    Inventors: Heinz Schicht, Uwe Schmidt, Wilfried Kaiser, Herbert Schindler
  • Patent number: 6306525
    Abstract: A thin multilayer coating having reflection properties in the infrared and/or in the solar radiation range of the low-emissivity type for windows comprises a lower dielectric antireflection treatment layer, at least one silver-based functional layer, at least one metallic protection layer adjacent to the silver layer and an upper dielectric antireflection treatment layer. The upper dielectric antireflection treatment layer comprises a lower partial layer made of SnO2, ZnO, TiO2, Bi2O3 or Al2O3 and an upper partial layer made of a mixed oxide based on zinc and aluminium, especially one having a spinel structure of the ZnAl2O4 type.
    Type: Grant
    Filed: December 11, 1998
    Date of Patent: October 23, 2001
    Assignee: Saint-Gobain Vitrage
    Inventors: Heinz Schicht, Uwe Schmidt, Wilfried Kaiser, Bodo Hryniw
  • Patent number: 6159621
    Abstract: The invention concerns a transparent substrate provided with a thin-film stack comprising at least one metallic film with reflective properties in the infrared, under which is disposed a first antireflection coating consisting essentially of one or more metal oxides, and an upper protective metallic film characterized in that the protective metallic film consists of an alloy of Ti, Zr or Hf with Al, Pt or Pd or an AlSi alloy.According to the invention, the second upper antireflection coating includes at least two metal oxide films, one of which is ZnO based and contains 0.1 to 10% by weight of at least one of the elements B, Si, Ga, Sm, Al, Co, Mg, Mn, Fe, Ni and/or Cr and the other is SnO.sub.2 or Bi.sub.2 O.sub.3 based, and a final, hard oxide based film.
    Type: Grant
    Filed: July 31, 1998
    Date of Patent: December 12, 2000
    Assignee: Saint-Gobain Vitrage
    Inventors: Heinz Schicht, Uwe Schmidt, Wilfried Kaiser, Bodo Hryniw
  • Patent number: 6020077
    Abstract: The invention relates to a transparent substrate, in particular glass substrate, provided with a thin-film stack including at least one metal film with properties in the infrared, in particular a low-emissivity one, arranged between two coatings which each include at least one anti-reflection film based on dielectric material, and at least one protective film based on a sacrificial metal or a partially or fully oxidized sacrificial metal or a sacrificial metal alloy placed between the said metal film and one of the said coatings. According to the invention, the film placed directly below and/or above the said metal film contains at least one of the noble metals Pd, Au, Ir, Pt and Rh. The low-level addition of one or more of these metals to the others, namely the film placed below and/or above the metal film, leads to an increase in the chemical stability and the hardness of the thin-film stack.
    Type: Grant
    Filed: February 7, 1997
    Date of Patent: February 1, 2000
    Assignee: Saint-Gobain Vitrage
    Inventors: Heinz Schicht, Wulf Haussler, Herbert Schindler, Gerhard Ditzel, Uwe Schmidt, Wilfried Kaiser
  • Patent number: 5512152
    Abstract: A method for improving the quality of a system of layers deposited on a substrate such as glass is provided, in which, the system of layers have an oxide-based surface layer, in particular n-type semi-conductor oxides such as SnO.sub.x, in which the surface layer is subjected to IR irradiation to provide a stabilization of the layer equivalent to or better than with a 48-hour exposure to the air.
    Type: Grant
    Filed: July 15, 1994
    Date of Patent: April 30, 1996
    Assignee: Saint Gobain Vitrage
    Inventors: Heinz Schicht, Herbert Schindler, Klaus Januschkewitz, Werner Gregorowius, Wilfried Kaiser