Patents by Inventor Christopher John Winscom

Christopher John Winscom 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).

  • Publication number: 20110241063
    Abstract: A flexible element has a flexible support comprising two or more layers with different modulus of elasticities in bound contact with each other, and at least one thin film wherein the total thickness of the thin film(s) is less than the total thickness of the flexible support at any point of contact between the support and the thin film(s); and at least one thin film is deposited on the outer surface of the layer of the flexible support having the higher elastic modulus.
    Type: Application
    Filed: December 22, 2009
    Publication date: October 6, 2011
    Inventor: Christopher John Winscom
  • Patent number: 5837431
    Abstract: Processing of color photographic materials can be accomplished using an aqueous redox amplifier composition comprising a color developing agent, an antioxidant therefor, hydrogen peroxide, and a stabilizing amount of nitrite ions to reduce dye loss during storage.
    Type: Grant
    Filed: December 5, 1997
    Date of Patent: November 17, 1998
    Assignee: Eastman Kodak Company
    Inventors: Peter Jeffrey Twist, Christopher John Winscom
  • Patent number: 5738980
    Abstract: Processing of color photographic materials can be accomplished using an aqueous redox amplifier composition comprising a color developing agent, an antioxidant therefor, hydrogen peroxide, and a stabilizing amount of nitrite ions to reduce dye loss during storage.
    Type: Grant
    Filed: August 14, 1997
    Date of Patent: April 14, 1998
    Assignee: Eastman Kodak Company
    Inventors: Peter Jeffrey Twist, Christopher John Winscom
  • Patent number: 5731135
    Abstract: An aqueous redox amplifier solution having a pH in the range 10.0 to 13.5 comprises:a color developing agent and/or auxiliary developing agent, hydrogen peroxide or a compound that provides hydrogen peroxide in a concentration equivalent to 0.1 to 50.0 ml/l of 30% w/w solution, anda borate or other complexing compound capable of reversibly forming a complex with hydrogen peroxide, the complexing compound being in a concentration of from 1.0 to 100.0 g/l, andwherein the relative amounts of complexing compound and hydrogen peroxide are such as to provide an amount of hydrogen peroxide effective for redox amplification and buffer the hydrogen peroxide and thereby reduce the decline in the rate of redox amplification. This solution is useful for processing color photographic elements.
    Type: Grant
    Filed: January 30, 1997
    Date of Patent: March 24, 1998
    Assignee: Eastman Kodak Company
    Inventors: Peter Jeffery Twist, Christopher John Winscom
  • Patent number: 5667947
    Abstract: An aqueous redox amplifier solution having a pH in the range 10.0 to 13.5 comprises:a color developing agent and/or auxiliary developing agent,hydrogen peroxide or a compound that provides hydrogen peroxide in a concentration equivalent to 0.1 to 50.0 ml/l of 30% w/w solution, anda borate or other complexing compound capable of reversibly forming a complex with hydrogen peroxide, the complexing compound being in a concentration of from 1.0 to 100.0 g/l, andwherein the relative amounts of complexing compound and hydrogen peroxide are such as to provide an amount of hydrogen peroxide effective for redox amplification and buffer the hydrogen peroxide and thereby reduce the decline in the rate of redox amplification. This solution is useful for processing color photographic elements.
    Type: Grant
    Filed: November 13, 1995
    Date of Patent: September 16, 1997
    Assignee: Eastman Kodak Company
    Inventors: Peter Jeffery Twist, Christopher John Winscom