Patents by Inventor Bryan V. Hunt

Bryan V. Hunt 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: 7258967
    Abstract: Incorporating a sulfonyldiphenol compound into photothermographic materials improves Raw Stock Keeping and post-processing “hot-dark” print stability especially under harsh environmental conditions such as high temperature.
    Type: Grant
    Filed: October 18, 2006
    Date of Patent: August 21, 2007
    Assignee: Carestream Health, Inc.
    Inventors: Kumars Sakizadeh, Kui Chen-Ho, Bryan V. Hunt, Lilia P. Burleva
  • Publication number: 20040259044
    Abstract: A black and white photothermographic material is imaged and heat developed to provide an image that has an image tone that is characterized such that the value for b* at an optical density of 1.0 is greater than the value for b* at Dmin. This material is useful for recording medical images used for diagnosis, particularly those images which have been captured through computed radiography, digital radiography, or by digitally scanning a conventional wet-processed radiographic film.
    Type: Application
    Filed: October 16, 2003
    Publication date: December 23, 2004
    Applicant: Eastman Kodak Company
    Inventors: Bryan V. Hunt, Lilia P. Burleva, Mark C. Skinner
  • Publication number: 20040146813
    Abstract: A photothermographic material that comprises a support having thereon one or more thermally-developable imaging layers comprising a binder and in reactive association, a photosensitive silver halide, a non-photosensitive source of reducible silver ions, and a reducing composition for the non-photosensitive source reducible silver ions. The thermally-developable layers further comprises one or more radiation absorbing compounds that provide a total absorbance of greater than 0.6 and up to and including 3 in the thermally-developable imaging layer(s). These photothermographic materials are independently coated and dried while the material is conveyed at a rate of at least 5 meters per minute.
    Type: Application
    Filed: January 8, 2004
    Publication date: July 29, 2004
    Inventors: Bryan V. Hunt, Steven H. Kong, William D. Ramsden, Gary E. Labelle
  • Patent number: 6746831
    Abstract: Thermographic and photothermographic materials comprise a barrier layer to provide physical protection and to prevent migration of diffusible imaging components and by-products resulting from high temperature imaging and/or development The barrier layer comprises 15 to 100 weight % of a film-forming cellulose ether polymer. This barrier layer is capable of retarding diffusion of mobile chemicals such as fatty carboxylic acids, developers, and toners. This barrier layer can also include other film-forming polymers to provide a clear and scratch-resistant surface.
    Type: Grant
    Filed: January 27, 2003
    Date of Patent: June 8, 2004
    Assignee: Eastman Kodak Company
    Inventor: Bryan V. Hunt
  • Patent number: 6730461
    Abstract: A photothermographic material that comprises a support having thereon one or more thermally-developable imaging layers comprising a binder and in reactive association, a photosensitive silver halide, a non-photosensitive source of reducible silver ions, and a reducing composition for the non-photosensitive source reducible silver ions. The thermally-developable layers further comprises one or more radiation absorbing compounds that provide a total absorbance of greater than 0.6 and up to and including 3 in the thermally-developable imaging layer(s). These photothermographic materials are independently coated and dried while the material is conveyed at a rate of at least 5 meters per minute.
    Type: Grant
    Filed: October 26, 2001
    Date of Patent: May 4, 2004
    Assignee: Eastman Kodak Company
    Inventors: Bryan V. Hunt, Steven H. Kong, William D. Ramsden, Gary E. Labelle
  • Patent number: 6689547
    Abstract: A photothermographic material that comprises a support having thereon one or more thermally-developable imaging layers comprising a binder and in reactive association, a photosensitive silver halide, a non-photosensitive source of reducible silver ions, and a reducing composition for the non-photosensitive source reducible silver ions. The thermally-developable layers further comprises one or more radiation absorbing compounds that provide a total absorbance of greater than 0.6 and up to and including 3 in the thermally-developable imaging layer(s). These photothermographic materials exhibit reduced mottle without significant loss in sensitivity.
    Type: Grant
    Filed: December 5, 2001
    Date of Patent: February 10, 2004
    Assignee: Eastman Kodak Company
    Inventors: Bryan V. Hunt, Steven H. Kong, William D. Ramsden, Gary E. Labelle
  • Publication number: 20030203322
    Abstract: The present invention provides a spectrally sensitized photothermographic silver halide element support having a first surface and a second surface, a photothermographic composition that is to be exposed to a laser being disposed on the first surface of the support. The element has at least one back layer disposed on the second surface of the support. The photothermographic composition comprises silver halide emulsion grains having a number average grain size of less than 0.1 &mgr;m and that are spectrally sensitized with a sensitizing dye having a spectral sensitivity that corresponds to the spectral properties of the laser. The photothermographic composition further comprises an organic silver salt, a reducing agent for silver ions, and at least one dye. In addition, the photothermographic composition has a transmission optical density greater than 0.1 at the exposure wavelength, and the back layer has a transmission optical density greater than 0.1 at the exposure wavelength.
    Type: Application
    Filed: December 23, 2002
    Publication date: October 30, 2003
    Applicant: Eastman Kodak Company
    Inventors: Thomas C. Geisler, Thomas J. Kub, Darlene F. Stewart, Mark C. Skinner, Bryan V. Hunt
  • Publication number: 20030162134
    Abstract: A photothermographic material that comprises a support having thereon one or more thermally-developable imaging layers comprising a binder and in reactive association, a photosensitive silver halide, a non-photosensitive source of reducible silver ions, and a reducing composition for the non-photosensitive source reducible silver ions. The thermally-developable layers further comprises one or more radiation absorbing compounds that provide a total absorbance of greater than 0.6 and up to and including 3 in the thermally-developable imaging layer(s). These photothermographic materials exhibit reduced mottle without significant loss in sensitivity.
    Type: Application
    Filed: December 5, 2001
    Publication date: August 28, 2003
    Applicant: Eastman Kodak Company
    Inventors: Bryan V. Hunt, Steven H. Kong, William D. Ramsden, Gary E. Labelle
  • Publication number: 20030138738
    Abstract: A photothermographic material that comprises a support having thereon one or more thermally-developable imaging layers comprising a binder and in reactive association, a photosensitive silver halide, a non-photosensitive source of reducible silver ions, and a reducing composition for the non-photosensitive source reducible silver ions. The thermally-developable layers further comprises one or more radiation absorbing compounds that provide a total absorbance of greater than 0.6 and up to and including 3 in the thermally-developable imaging layer(s). These photothermographic materials are independently coated and dried while the material is conveyed at a rate of at least meters per minute.
    Type: Application
    Filed: December 5, 2001
    Publication date: July 24, 2003
    Applicant: Eastman Kodak Company
    Inventors: Bryan V. Hunt, Steven H. Kong, William D. Ramsden, Gary E. Labelle
  • Patent number: 6582892
    Abstract: A black-and-white photothermographic material that is sensitive at a wavelength greater than 700 nm, and comprises a support having thereon one or more thermally-developable imaging layers comprising a binder and in reactive association, a photosensitive silver halide, a non-photosensitive source of reducible silver ions, and a reducing composition for the non-photosensitive source reducible silver ions. The thermally-developable layers further comprises one or more indolenine dyes as post-processing stabilizing compounds and one or more merocyanine dyes or cyanine spectral sensitizing dyes that comprise one or more thioalkyl, thioaryl, or thioether groups.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: June 24, 2003
    Assignee: Eastman Kodak Company
    Inventors: Steven H. Kong, Bryan V. Hunt, William D. Ramsden
  • Publication number: 20030091943
    Abstract: A black-and-white photothermographic material that is sensitive at a wavelength greater than 700 nm, and comprises a support having thereon one or more thermally-developable imaging layers comprising a binder and in reactive association, a photosensitive silver halide, a non-photosensitive source of reducible silver ions, and a reducing composition for the non-photosensitive source reducible silver ions. The thermally-developable layers further comprises one or more indolenine dyes as post-processing stabilizing compounds and one or more merocyanine dyes or cyanine spectral sensitizing dyes that comprise one or more thioalkyl, thioaryl, or thioether groups.
    Type: Application
    Filed: June 29, 2001
    Publication date: May 15, 2003
    Applicant: Eastman Kodak Company
    Inventors: Steven H. Kong, Bryan V. Hunt, Wiliam D. Ramsden
  • Patent number: 6420102
    Abstract: Thermographic and photothermographic materials comprise a barrier layer to provide physical protection and to prevent migration of diffusible imaging components and by-products resulting from high temperature imaging and/or development. The barrier layer comprises a film-forming acrylic or methacrylic acid ester or amide polymer(s) that has a molecular weight of at least 8000 g/mole and comprises hydroxy functionality in from about 15 to 100 mole % of the acrylic or methacrylic acid ester or amide recurring units. This barrier layer is capable of retarding diffusion of mobile chemicals such as fatty carboxylic acids, developers, and toners. This barrier layer can also include at least one other film-forming polymer to provide a clear and scratch-resistant surface.
    Type: Grant
    Filed: July 27, 2001
    Date of Patent: July 16, 2002
    Assignee: Eastman Kodak Company
    Inventors: Charles L. Bauer, Michelle L. Horch, Anne M. Miller, David M. Teegarden, Bryan V. Hunt, Kumars Sakizadeh