Patents by Inventor Kimon Papadopoulos

Kimon Papadopoulos 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).

  • Photoflash particle mixture
    Patent number: 5821451
    Abstract: The invention relates to a photoflash mixture comprising a mixture of particles of zirconia and at least one oxidizer, wherein said zirconia particles comprise a mixture of smaller particles between about 2 and 10 .mu.m diameter, and larger particles between about 20 and 30 .mu.m average diameter.
    Type: Grant
    Filed: December 19, 1996
    Date of Patent: October 13, 1998
    Assignee: Eastman Kodak Company
    Inventors: Stanley W. Stephenson, Kimon Papadopoulos
  • Vitrified phosphor articles, intermediates, and preparation methods
    Patent number: 5670086
    Abstract: Vitrified phosphor articles, intermediates, and methods for preparing the articles. In the methods, a combination of species are admixed. The combination of species are precursors for a glass-forming system. The glass-forming system includes precursors for a crystalline radiographic phosphor. The admixed combination of species are fired to form a melt having a single liquid. The product of the melt is molten-shaped.
    Type: Grant
    Filed: February 20, 1996
    Date of Patent: September 23, 1997
    Assignee: Eastman Kodak Company
    Inventors: Kimon Papadopoulos, Kurt D. Sieber
  • Imaging element having an electrically-conductive layer
    Patent number: 5576162
    Abstract: Imaging elements, such as photographic, electrostatographic and thermal imaging elements, are comprised of a support, an image-forming layer and an electrically-conductive layer comprising a dispersion of carbon nanofibers in a film-forming binder. Use of carbon nanofibers provides a controlled degree of electrical conductivity and beneficial chemical, physical and optical properties which adapt the electrically-conductive layer for such purposes as providing protection against static or serving as an electrode which takes part in an image-forming process.
    Type: Grant
    Filed: January 18, 1996
    Date of Patent: November 19, 1996
    Assignee: Eastman Kodak Company
    Inventor: Kimon Papadopoulos
  • Transparent contoured support plate for film
    Patent number: 4575230
    Abstract: A transparent contoured support plate for use in a printing gate is disclosed which comprises a transparent glass or plastic plate having a smoothly contoured raised central area. This contoured raised area is intended to support the central area of a flexible photographic material, the edges of which are constrained by a mount having an open aperture.
    Type: Grant
    Filed: March 21, 1985
    Date of Patent: March 11, 1986
    Assignee: Eastman Kodak Company
    Inventors: John F. Carson, Kimon Papadopoulos
  • .beta.-Alumina coating
    Patent number: 4395432
    Abstract: Disclosed is a method of coating a substrate with .beta.-alumina, a compound of alumina and an alkali metal oxide, while maintaining its electrically conductive properties. A powdered mixture is formed of the .beta.-alumina and a carbonate of the alkali metal. The mixture is sprayed through a source of heat sufficient to melt it onto the substrate. A plasma spray torch can be used to melt spray the mixture.
    Type: Grant
    Filed: December 16, 1981
    Date of Patent: July 26, 1983
    Assignee: Westinghouse Electric Corp.
    Inventors: Frank D. Rizzelli, Kimon Papadopoulos