Patents by Inventor Sven G. Lindfors

Sven G. Lindfors 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: 4488084
    Abstract: Disclosed herein is an electroluminescence structure comprising, in sandwich arrangement, a transparent substrate made of, e.g., glass, a first transparent electrode layer, a luminescence layer, a number of second transparant electrode layers disposed at least partially on the luminescence layer, and a black layer arranged in contact with the luminescence layer and the second electrode layer. The black layer covers the second electrode layer and is in contact with the luminescence layer outside of said second electrode layers. The black layer consists of an insulating layer and a wiring disposed on said insulating layer. Openings reaching the second elctrode layer are defined in the insulating layer opposite said second electrode layers such that the wiring can make electrical contact with the second electrode layers through the openings.
    Type: Grant
    Filed: April 6, 1981
    Date of Patent: December 11, 1984
    Assignee: Oy Lohja Ab
    Inventors: Sven G. Lindfors, Jorma O. Antson, Ralf Graeffe, Arto J. Pakkala, Tuomo S. Suntola
  • Patent number: 4416933
    Abstract: Described herein is a thin film electroluminescence structure comprising a substrate layer (1), a first electrode layer (2), a second electrode layer (10) disposed at a distance from the first electrode layer (2), and a luminescence layer (6) disposed between the first (2) and the second electrode layer (10). Additional layer structures (3 to 5, 7 to 9) are disposed between the electrode layers (2 and 10) and the luminescence layer (6), said structures having current limiting and chemically protecting functions. The invention is based on the idea that it is possible to separate the functions of a chemical barrier and a current limitation from each other, whereby the production of the chemical protection in itself takes place without voltage losses, in other words, with a material whose electrical conductivity is essentially higher than the electrical conductivity of the current limiter.
    Type: Grant
    Filed: February 8, 1982
    Date of Patent: November 22, 1983
    Assignee: Oy Lohja Ab
    Inventors: Jorma O. Antson, Sven G. Lindfors, Arto J. Pakkala, Jarmo I. Skarp, Tuomo S. Suntola, Markku A. Ylilammi
  • Patent number: 4413022
    Abstract: A method and an apparatus are provided for performing growth of compound thin films by alternately repeating separate surface reactions of the substances comprising the compound. A carrier gas affects a diffusion barrier between the surface reaction steps to be separated from each other. The gas phase diffusion barrier is also applied to separate the source regions of different reacting vapors both from each other and from the surface reaction zone.
    Type: Grant
    Filed: June 21, 1979
    Date of Patent: November 1, 1983
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tuomo S. Suntola, Arto J. Pakkala, Sven G. Lindfors
  • Patent number: 4396864
    Abstract: Disclosed herein is an electroluminescence display component comprising, in sandwich arrangement, a transparent substrate made of, e.g., glass and two thin film structures, each comprising two electrode layers and a luminescence layer disposed between said electrode layers. A light filter layer is disposed between the different thin film structures for realizing a double color display. The light filter layer can be an integral layer made of homogeneous material or a sandwich structure comprising, e.g., two epoxy layers functioning as adhesive layers and a colored tape or similar element disposed between said epoxy layers.
    Type: Grant
    Filed: April 6, 1981
    Date of Patent: August 2, 1983
    Assignee: Oy Lohja AB
    Inventors: Tuomo S. Suntola, Jorma O. Antson, Ralf Graeffe, Sven G. Lindfors, Arto J. Pakkala
  • Patent number: 4389973
    Abstract: A method and an apparatus are provided for performing growth of compound thin films by alternately repeating separate surface reactions of the substances comprising the compound. A carrier gas affects a diffusion barrier between the surface reaction steps to be separated from each other. The gas phase diffusion barrier is also applied to separate the source regions of different reacting vapors both from each other and from the surface reaction zone.
    Type: Grant
    Filed: December 11, 1981
    Date of Patent: June 28, 1983
    Assignee: Oy Lohja AB
    Inventors: Tuomo S. Suntola, Arto J. Pakkala, Sven G. Lindfors