Patents by Inventor Gary Norman Barber

Gary Norman Barber 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: 6342339
    Abstract: A dispersion comprising an aqueous medium having dispersed therein an aggregated dye of the Formula (I): wherein X is oxygen or sulfur; R1-R4 each independently represent an unsubstituted or substituted alkyl group, an unsubstituted or substituted aryl group or an unsubstituted or substituted heteroaryl group; L1, L2 and L3 each independently represent substituted or unsubstituted methine groups; M+ represents a proton or an inorganic or organic cation; and n is 0, 1, 2 or 3 and wherein the aggregated dye in the dispersion has an absorption halfbandwidth of less than 55 nm.
    Type: Grant
    Filed: December 7, 2000
    Date of Patent: January 29, 2002
    Assignee: Eastman Kodak Company
    Inventors: Margaret Jones Helber, William James Harrison, Elizabeth Ann Gallo, Mary Christine Brick, Steven Wade Kortum, Gary Norman Barber
  • Publication number: 20010038979
    Abstract: A dispersion comprising an aqueous medium having dispersed therein an aggregated dye of the Formula (I): 1
    Type: Application
    Filed: December 7, 2000
    Publication date: November 8, 2001
    Inventors: Margaret Jones Helber, William James Harrison, Elizabeth Ann Gallo, Mary Christine Brick, Steven Wade Kortum, Gary Norman Barber
  • Publication number: 20010038978
    Abstract: A dispersion comprising an aqueous medium having dispersed therein an aggregated dye of the Formula (I): 1
    Type: Application
    Filed: December 7, 2000
    Publication date: November 8, 2001
    Inventors: Margaret Jones Helber, William James Harrison, Elizabeth Ann Gallo, Mary Christine Brick, Steven Wade Kortum, Gary Norman Barber
  • Patent number: 6306567
    Abstract: A dispersion comprising an aqueous medium having dispersed therein an aggregated dye of the Formula (I): wherein X is oxygen or sulfur; R1-R4 each independently represent an unsubstituted or substituted alkyl group, an unsubstituted or substituted aryl group or an unsubstituted or substituted heteroaryl group; L1, L2 and L3 each independently represent substituted or unsubstituted methine groups; M+ represents a proton or an inorganic or organic cation; and n is 0, 1, 2 or 3 and wherein the aggregated dye in the dispersion has an absorption half bandwidth of less than 55 nm.
    Type: Grant
    Filed: December 7, 2000
    Date of Patent: October 23, 2001
    Assignee: Eastman Kodak Company
    Inventors: Margaret Jones Helber, William James Harrison, Elizabeth Ann Gallo, Mary Christine Brick, Steven Wade Kortum, Gary Norman Barber
  • Patent number: 6300046
    Abstract: A dispersion comprising an aqueous medium having dispersed therein an aggregated dye of the Formula (I): wherein X is oxygen or sulfur; R1-R4 each independently represent an unsubstituted or substituted alkyl group, an unsubstituted or substituted aryl group or an unsubstituted or substituted heteroaryl group; L1, L2 and L3 each independently represent substituted or unsubstituted methine groups; M+ represents a proton or an inorganic or organic cation; and n is 0, 1, 2 or 3 and wherein the aggregated dye in the dispersion has an absorption halfbandwidth of less than 55 nm.
    Type: Grant
    Filed: December 7, 2000
    Date of Patent: October 9, 2001
    Assignee: Eastman Kodak Company
    Inventors: Margaret Jones Helber, William James Harrison, Elizabeth Ann Gallo, Mary Christine Brick, Steven Wade Kortum, Gary Norman Barber
  • Patent number: 6291149
    Abstract: A dispersion comprising an aqueous medium having dispersed therein an aggregated dye of the Formula (I): wherein X is oxygen or sulfur; R1-R4 each independently represent an unsubstituted or substituted alkyl group, an unsubstituted or substituted aryl group or an unsubstituted or substituted heteroaryl group; L1, L2 and L3 each independently represent substituted or unsubstituted methine groups; M+ represents a proton or an inorganic or organic cation; and n is 0, 1, 2 or 3 and wherein the aggregated dye in the dispersion has an absorption halfbandwidth of less than 55 nm.
    Type: Grant
    Filed: December 7, 2000
    Date of Patent: September 18, 2001
    Assignee: Eastman Kodak Company
    Inventors: Margaret Jones Helber, William James Harrison, Elizabeth Ann Gallo, Mary Christine Brick, Steven Wade Kortum, Gary Norman Barber
  • Patent number: 6183944
    Abstract: A dispersion comprising an aqueous medium having dispersed therein an aggregated dye of the Formula (I): wherein X is oxygen or sulfur; R1-R4 each independently represent an unsubstituted or substituted alkyl group, an unsubstituted or substituted aryl group or an unsubstituted or substituted heteroaryl group; L1, L2 and L3 each independently represent substituted or unsubstituted methine groups; M+ represents a proton or an inorganic or organic cation; and n is 0, 1, 2 or 3 and wherein the aggregated dye in the dispersion has an absorption halfbandwidth of less than 55 nm.
    Type: Grant
    Filed: November 30, 1995
    Date of Patent: February 6, 2001
    Assignee: Eastman Kodak Company
    Inventors: Margaret Jones Helber, William James Harrison, Elizabeth Ann Gallo, Mary Christine Brick, Steven Wade Kortum, Gary Norman Barber
  • Patent number: 5723272
    Abstract: Silver halide light sensitive photographic elements comprising a support bearing on one side thereof at least one blue-sensitive silver halide emulsion yellow-image forming layer, at least one red-sensitive silver halide emulsion cyan-image forming layer, at least one green-sensitive silver halide emulsion magenta-image forming layer, and an antihalation layer comprising a cyan filter dye coated between the support and the red-sensitive layer, wherein the green-sensitive layer comprises a four equivalent magenta image forming coupler and the cyan filter dye is of the formula (I): ##STR1## where L.sup.1, L.sup.2, L.sup.3, L.sup.4 and L.sup.5 are methine groups; R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are independently H or alkyl or aryl groups; and M.sup.+ is H or a counter ion; wherein at least one of R.sup.1, R.sup.2, R.sup.3 and R.sup.4 comprises an aryl group substituted with a substituent having a .pi. value of less than -0.10, where .pi.
    Type: Grant
    Filed: December 22, 1995
    Date of Patent: March 3, 1998
    Assignee: Eastman Kodak Company
    Inventors: Gary Norman Barber, Margaret Jones Helber
  • Patent number: 5657931
    Abstract: A fine solid particle aqueous dispersion comprises dispersed particles of a substantially water insoluble nonpolymeric organic compound useful in imaging and a polymeric dispersant having an HLB number of at least 8. The dispersion can be prepared by(a) forming a coarse aqueous slurry of solid particles of said compound and a polymeric dispersant having an HLB number of at least 8; and(b) milling said slurry for a period of time sufficient to provide particles of the desired particle size of less than 0.5 micron.
    Type: Grant
    Filed: May 19, 1995
    Date of Patent: August 19, 1997
    Assignee: Eastman Kodak Company
    Inventors: Mridula Nair, Mary Christine Brick, Lloyd Anthony Lobo, Gary Norman Barber
  • Patent number: 5650265
    Abstract: Palladium compounds are incorporated into a relatively low speed photographic print element. One embodiment of the invention comprises a silver halide light sensitive photographic print element comprising a support bearing at least one silver halide emulsion image forming layer, an antistatic layer containing vanadium pentoxide, and a palladium compound. In a preferred embodiment, the silver halide light sensitive photographic print element of the invention comprises a support bearing on one side thereof at least one blue-sensitive silver halide emulsion yellow-image forming layer, at least one red-sensitive silver halide emulsion cyan-image forming layer, and at least one green-sensitive silver halide emulsion magenta-image forming layer; an antistatic layer containing vanadium pentoxide; and a palladium compound.
    Type: Grant
    Filed: December 22, 1995
    Date of Patent: July 22, 1997
    Assignee: Eastman Kodak Company
    Inventors: Henry Joseph Sniadoch, Gary Norman Barber