Patents by Inventor Benjamin P. Hoag

Benjamin P. Hoag 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).

  • Organic element for electroluminescent devices
    Patent number: 6824893
    Abstract: Disclosed is an OLED device comprising a light-emitting layer containing a host and a dopant where the dopant comprises a boron compound containing a bis(azinyl)methene boron complex group.
    Type: Grant
    Filed: February 28, 2002
    Date of Patent: November 30, 2004
    Assignee: Eastman Kodak Company
    Inventors: Benjamin P. Hoag, Denis Y. Kondakov
  • Organic element for electroluminescent devices
    Patent number: 6661023
    Abstract: Disclosed is an OLED device comprising a light-emitting layer containing a host and a dopant where the dopant comprises a boron compound complexed by two ring nitrogens of a deprotonated bis(azinyl)amine ligand.
    Type: Grant
    Filed: June 27, 2002
    Date of Patent: December 9, 2003
    Assignee: Eastman Kodak Company
    Inventors: Benjamin P. Hoag, Scott R. Conley, Denis Y. Kondakov, Zbyslaw R. Owczarczyk, Christopher T. Brown
  • Color photographic element having improved contrast and compatibility with both dry and conventional processing
    Patent number: 6649332
    Abstract: A method of processing an imagewise exposed color photographic film, said film having at least three light-sensitive units which have their individual sensitivities in different wavelength regions, each of the units comprising at least one light sensitive silver halide emulsion and image dye coupler, which method comprises contacting the imagewise exposed color photographic film with an aqueous solution containing a non-blocked developing agent, at a temperature of between 30 to 60° C.; and wherein said film further comprises an incorporated reducing agent, at least one organic silver salt and an amido compound wherein the reducing agent is substantially unreactive in the aqueous color development step described above, but wherein color development of the same imagewise exposed film is capable of being alternatively obtained, without any externally applied developing agent, by heating said film to a temperature above about 80° C.
    Type: Grant
    Filed: April 30, 2002
    Date of Patent: November 18, 2003
    Assignee: Eastman Kodak Company
    Inventors: David T. Southby, Xiqiang Yang, Benjamin P. Hoag
  • Organic element for electroluminescent devices
    Publication number: 20030201415
    Abstract: Disclosed is an OLED device comprising a light-emitting layer containing a host and a dopant where the dopant comprises a boron compound complexed by two ring nitrogens of a deprotonated bis(azinyl)amine ligand.
    Type: Application
    Filed: June 27, 2002
    Publication date: October 30, 2003
    Applicant: Eastman Kodak Company
    Inventors: Benjamin P. Hoag, Scott R. Conley, Denis Y. Kondakov, Zbyslaw R. Owczarczyk, Christopher T. Brown
  • Organic element for electroluminescent devices
    Publication number: 20030198829
    Abstract: Disclosed is an OLED device comprising a light-emitting layer containing a host and a dopant where the dopant comprises a boron compound containing a bis(azinyl)methene boron complex group.
    Type: Application
    Filed: February 28, 2002
    Publication date: October 23, 2003
    Applicant: Eastman Kodak Company
    Inventors: Benjamin P. Hoag, Denis Y. Kondakov
  • Color photographic element having improved contrast and compatibility with both dry and conventional processing
    Publication number: 20020177086
    Abstract: A method of processing an imagewise exposed color photographic film, said film having at least three light-sensitive units which have their individual sensitivities in different wavelength regions, each of the units comprising at least one light sensitive silver halide emulsion and image dye coupler, which method comprises contacting the imagewise exposed color photographic film with an aqueous solution containing a non-blocked developing agent, at a temperature of between 30 to 60° C.; and wherein said film further comprises an incorporated reducing agent, at least one organic silver salt and an amido compound wherein the reducing agent is substantially unreactive in the aqueous color development step described above, but wherein color development of the same imagewise exposed film is capable of being alternatively obtained, without any externally applied developing agent, by heating said film to a temperature above about 80° C.
    Type: Application
    Filed: April 30, 2002
    Publication date: November 28, 2002
    Inventors: David T. Southby, Xiqiang Yang, Benjamin P. Hoag
  • Color photographic element having improved contrast and compatibility with both dry and conventional processing
    Patent number: 6440648
    Abstract: A method of processing an imagewise exposed color photographic film, said film having at least three light-sensitive units which have their individual sensitivities in different wavelength regions, each of the units comprising at least one light sensitive silver halide emulsion and image dye coupler, which method comprises contacting the imagewise exposed color photographic film with an aqueous solution containing a non-blocked developing agent, at a temperature of between 30 to 60° C.; and wherein said film further comprises an incorporated reducing agent, at least one organic silver salt and an amido compound wherein the reducing agent is substantially unreactive in the aqueous color development step described above, but wherein color development of the same imagewise exposed film is capable of being alternatively obtained, without any externally applied developing agent, by heating said film to a temperature above about 80° C.
    Type: Grant
    Filed: December 21, 2000
    Date of Patent: August 27, 2002
    Assignee: Eastman Kodak Company
    Inventors: David T. Southby, Xiqiang Yang, Benjamin P. Hoag