Patents Examined by Hao Van Le
  • Patent number: 6479229
    Abstract: A multilayer silver halide color photographic material, wherein when the multilayer silver halide color photographic material is development processed with a color developing solution containing a p-phenylenediamine derivative as a color developing agent, the relationship between the development proceeding velocity a of the lowermost layer of the constituting emulsion layers of the photographic material and the development proceeding velocity b of the uppermost layer satisfies the following equation (R-1): 0.65≦a/b≦2.0  (R-1) provided that the development proceeding velocity is expressed by the reciprocal of the developing time required for the density value by development to reach ½ of the maximum density.
    Type: Grant
    Filed: July 12, 2001
    Date of Patent: November 12, 2002
    Assignee: Fuji Photo Film Co. Ltd.
    Inventors: Kazuaki Yoshida, Yasuaki Deguchi, Hiroyuki Yoneyama
  • Patent number: 6436618
    Abstract: A multi-part color developing kit includes at least two parts (or solutions) of photochemical compositions that can be mixed to provide a color developing composition useful for obtaining color photographic images. A first aqueous solution is formulated with a color developing agent in free base form, an antioxidant for the color developing agent, an inorganic base, a triazinylstilbene optical brightening agent, an chemical base and a water-miscible or water-soluble hydroxy-substituted, straight-chain organic solvent. A second aqueous solution is formulated with a buffering agent, the same or different chemical base and a phosphonic acid metal ion sequestering agent. Both solutions have a pH and homogeneity to provide a clear color developing composition that is safer for use and disposal.
    Type: Grant
    Filed: May 21, 2001
    Date of Patent: August 20, 2002
    Assignee: Eastman Kodak Company
    Inventors: Jean M. Buongiorne, Charles M. Darmon, Michael J. Haight, Erika S. McLarney, Barry C. Kocher, Sheridan E. Vincent, Charles S. Christ, Jr.
  • Patent number: 6251572
    Abstract: Prints of different formats are produced by pixel by pixel recording of image information available in digital form for each picture onto a carrier material from a group of band-shaped standard carrier materials having different preselected strip widths. The image information of a print is recorded in a normal orientation or rotated 90° when one of the dimensions of the print to be produced can be made to correspond with the strip width of the available carrier material. The carrier material is changed when neither the length nor the width of a print to be produced corresponds to the strip width of the available carrier material. For a set of pictures to be produced which have at least partially different formats, the sequence of the recording of the underlying picture information is set according to the formats of the prints to be produced so that the number of the required carrier material changes is minimized.
    Type: Grant
    Filed: February 15, 2000
    Date of Patent: June 26, 2001
    Assignee: Gretag Imaging Trading AG
    Inventors: Michael Vikene, Frank Löffel
  • Patent number: 5578432
    Abstract: A stabilizing bath that provides image stability and uniform drainage of excess fluid to prevent drying spots and that reduces or eliminates the formation of residue on the base side of color negative films is comprised of hexamethylenetetramine, a nonionic polyethoxylated surfactant, and an anionic sulfate or sulfonate surfactant. The stabilizing bath is used as the final processing bath prior to drying. The nonionic surfactant provides uniform drainage of excess fluid and the anionic sulfate or sulfonate surfactant functions to reduce or eliminate the formation of residue on the base side of color negative films.
    Type: Grant
    Filed: March 21, 1996
    Date of Patent: November 26, 1996
    Assignee: Eastman Kodak Company
    Inventors: Hugh G. McGuckin, John S. Badger, Michael W. Orem