Patents by Inventor Anthony Adin

Anthony Adin 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: 6794105
    Abstract: A radiographic silver halide film useful for mammography comprises a support having a cubic grain silver halide emulsion on one side. The cubic grains are spectrally sensitized with a combination of first and second spectral sensitizing dyes that provides a combined maximum J-aggregate absorption of from about 540 to about 560 nm. The first spectral sensitizing dye is an anionic benzimidazole-benzoxazole carbocyanine and the second spectral sensitizing dye is an anionic oxycarbocyanine. The first and second spectral sensitizing dyes are present in a molar ratio of from about 0.25:1 to about 4:1.
    Type: Grant
    Filed: May 19, 2003
    Date of Patent: September 21, 2004
    Assignee: Eastman Kodak Company
    Inventors: Anthony Adin, Stephen A. Hershey, Robert E. Dickerson
  • Publication number: 20040096768
    Abstract: A radiographic silver halide film useful for mammography comprises a support having a cubic grain silver halide emulsion on one side. The cubic grains are spectrally sensitized with a combination of first and second spectral sensitizing dyes that provides a combined maximum J-aggregate absorption of from about 540 to about 560 nm. The first spectral sensitizing dye is an anionic benzimidazole-benzoxazole carbocyanine and the second spectral sensitizing dye is an anionic oxycarbocyanine. The first and second spectral sensitizing dyes are present in a molar ratio of from about 0.25:1 to about 4:1.
    Type: Application
    Filed: May 19, 2003
    Publication date: May 20, 2004
    Applicant: Eastman Kodak Company
    Inventors: Anthony Adin, Stephen A. Hershey, Robert E. Dickerson
  • Publication number: 20040096769
    Abstract: A radiographic silver halide film is designed for improved imaging of dense soft tissue as in mammography. The film includes a silver halide emulsion on each side of the support and at least one silver halide emulsion contains cubic silver halide grains that are doped with a metal hexacoordination complex compound such as a ruthenium hexacoordination complex compound.
    Type: Application
    Filed: May 19, 2003
    Publication date: May 20, 2004
    Applicant: Eastman Kodak Company
    Inventors: Anthony Adin, Richard E. Beal, Robert E. Dickerson, Anthony D. Gingello
  • Patent number: 6727055
    Abstract: A radiation-sensitive emulsion is disclosed comprised of cubic silver iodochlorobromide grains comprising 0.25 to about 1.5 mol % iodide, 1 to about 25 mol % chloride, and from about 73.5 to 98.75 mol % bromide, each based on total silver in the emulsion, wherein the grains have an average equivalent circular diameter of greater than 0.6 micrometers and contain from 10−7 to 10−3 mole per silver mole of a metal ion coordination complex dopant of Formula (I) in an internal region of the grains formed after 10 percent and before 95 percent of the total grain silver has been precipitated: [ML6]n  (I) wherein n is zero, −1, −2, −3 or −4, M is a filled frontier orbital polyvalent metal ion, other than iridium, and L6 represents bridging ligands which can be independently selected, provided that at least four of the ligands are anionic ligands, and at least one of the ligands is a cyano ligand or a ligand more electronegative than a cyano ligand.
    Type: Grant
    Filed: November 19, 2002
    Date of Patent: April 27, 2004
    Assignee: Eastman Kodak Company
    Inventors: Anthony Adin, Richard E. Beal, Anthony D. Gingello, Stephen A. Hershey, John D. Mee, Myra T. Olm
  • Patent number: 6686116
    Abstract: A blue-sensitive radiographic silver halide film comprises a silver halide emulsion layer comprising predominantly tabular silver halide grains that have an aspect ratio of at least 15, a grain thickness of at least 0.1 &mgr;m, and comprise at least 90 mol % bromide and up to 4 mol % iodide, based on total silver halide. Substantially all of the iodide is present in an internal localized portion of the tabular silver halide grains that excludes the surface of the grains. The tabular silver halide grains are dispersed in a hydrophilic polymeric vehicle mixture comprising at least 0.5% of oxidized gelatin, based on the total dry weight of the polymeric vehicle mixture in the emulsion layer. The tabular silver halide grains are spectrally sensitized using a combination of spectral sensitizing dyes to provide increased speed and reduced dye stain.
    Type: Grant
    Filed: March 26, 2003
    Date of Patent: February 3, 2004
    Assignee: Eastman Kodak Company
    Inventors: Robert E. Dickerson, Anthony Adin, Stephen A. Hershey, Richard F. Davis
  • Patent number: 6673507
    Abstract: A radiographic silver halide film has improved processability because it includes a silver halide emulsion composed of cubic grains having a critical molar ratio of chloride, iodide, and bromide. In particular, the cubic grains comprise from about 1 to about 20 mol % of chloride and from about 0.25 to about 1.5 mol % of iodide, with the remainder being bromide. The cubic grains also have an ECD of from about 0.65 to about 0.8 &mgr;m. This film is particularly useful in mammography for imaging dense soft tissue.
    Type: Grant
    Filed: May 19, 2003
    Date of Patent: January 6, 2004
    Assignee: Eastman Kodak Company
    Inventors: Robert E. Dickerson, Anthony Adin, Richard E. Beal, Anthony D. Gingello
  • Patent number: 6306570
    Abstract: A photographic element comprising at least one silver halide emulsion layer in which the silver halide is sensitized with a compound of the formula: wherein A is a silver halide adsorptive group that contains at least one atom of N, S, Se, or Te that promotes adsorption to silver halide, and Z is a light absorbing group including for example cyanine dyes, complex cyanine dyes, merocyanine dyes, complex merocyanine dyes, homopolar cyanine dyes, styryl dyes, oxonol dyes, hemioxonol dyes, and hemicyanine dyes, and XY is an fragmentable electron donor moiety in which X is an electron donor group and Y is a leaving group other than hydrogen, and wherein: 1) XY has an oxidation potential between 0 and about 1.4 V; and 2) the oxidized form of XY undergoes a bond cleavage reaction to give the radical X• and the leaving fragment Y. In a preferred embodiment of the invention, the radical X• has an oxidation potential ≦−0.7 V.
    Type: Grant
    Filed: March 27, 2000
    Date of Patent: October 23, 2001
    Assignee: Eastman Kodak Company
    Inventors: Anthony Adin, Jerome J. Looker, Samir Y. Farid, Ian R. Gould, Stephen A. Godleski, Jerome R. Lenhard, Annabel A. Muenter, Lal C. Vishwakarma, Paul A. Zielinski
  • Patent number: 6291154
    Abstract: A silver halide photographic element, and a method of making such an element, comprising a tabular grain silver halide emulsion containing at least one green spectral sensitizing dye of formula I, and at least one green spectral sensitizing dye of formula II: wherein R1 and R2 may be the same or different and are selected from substituted or unsubstituted C1 or C2 alkyl, substituted or unsubstituted C1 or C2 alkoxy, halogen, substituted or unsubstituted amido, or carbamoyl or substituted or unsubstituted aryl, provided that R1 and R2 are not both aryl, and the benzo back rings may optionally be further substituted; X3 is a substituted or unsubstituted C1 to C3 alkyl or alkenyl; X1 and X2 are acid or acid salt substituted C1 to C6 alkyl or alkenyl which may be further substituted or unsubstituted; M+ is a positive ion as required to balance the charge; where R3 and R4 may be the same or different and represent substituted or unsubstituted alkyl or alkenyl of 1 to 4 c
    Type: Grant
    Filed: January 29, 1993
    Date of Patent: September 18, 2001
    Assignee: Eastman Kodak Company
    Inventors: Anthony Adin, Frederick Charles Derks, Melvin Michael Kestner, Steven George Link
  • Patent number: 6232058
    Abstract: A high quality direct radiographic film is useful for dental care. The film contains relatively high silver coverage preferably coated on both sides of the support. It also contains sufficient silver halide desensitizer to reduce silver halide sensitivity to X-radiation by at least 0.02 log E. The combination of silver and desensitizer coverages provides sufficiently high photographic speed, excellent image quality and increased stability to background radiation sources.
    Type: Grant
    Filed: January 11, 2000
    Date of Patent: May 15, 2001
    Assignee: Eastman Kodak Company
    Inventors: Anthony Adin, Richard E. Beal, Franklin C. Brayer, Catherine C. Wideman
  • Patent number: 6054260
    Abstract: A photographic element comprising at least one silver halide emulsion layer in which the silver halide is sensitized with a compound of the formula: ##STR1## wherein A is a silver halide adsorptive group that contains at least one atom of N, S, Se, or Te that promotes adsorption to silver halide, and Z is a light absorbing group including for example cyanine dyes, complex cyanine dyes, merocyanine dyes, complex merocyanine dyes, homopolar cyanine dyes, styryl dyes, oxonol dyes, hemioxonol dyes, and hemicyanine dyes, and XY is an fragmentable electron donor moiety in which X is an electron donor group and Y is a leaving group other than hydrogen, and wherein:1) XY has an oxidation potential between 0 and about 1.4 V; and2) the oxidized form of XY undergoes a bond cleavage reaction to give the radical X.sup..cndot. and the leaving fragment Y.In a preferred embodiment of the invention, the radical X.sup..cndot. has an oxidation potential .ltoreq.-0.7 V.
    Type: Grant
    Filed: July 17, 1998
    Date of Patent: April 25, 2000
    Assignee: Eastman Kodak Company
    Inventors: Anthony Adin, Jerome J. Looker, Samir Y. Farid, Ian R. Gould, Stephen A. Godleski, Jerome R. Lenhard, Annabel A. Muenter, Lal C. Vishwakarma, Paul A. Zielinski
  • Patent number: 5955249
    Abstract: A radiographic element is disclosed containing in a high bromide tabular grain emulsion layer a 5-mercaptotetrazole to increase covering power. The 5-mercaptotetrazole is additionally capable of increasing imaging speed and producing colder image tones when provided with a phenyl substituent in the 1 ring position, which phenyl substituent is in turn substituted in its para position with a substituent satisfying the formula R(OCH.sub.2 CH.sub.2).sub.n O-- wherein n is an integer of from zero to 5; when n is 1 to 5, R is hydrogen, methyl or ethyl; and, when n is zero, R is methyl.
    Type: Grant
    Filed: March 9, 1998
    Date of Patent: September 21, 1999
    Assignee: Eastman Kodak Company
    Inventors: Anthony Adin, Jerome J. Looker
  • Patent number: 5876913
    Abstract: Dual-coated radiographic elements are disclosed employing thin tabular grain emulsions that exhibit increased covering power and colder image tones by limiting hydrophilic colloid coating coverages in the thin tabular grain emulsion layers to less than 15 mg/dm.sup.2.
    Type: Grant
    Filed: May 28, 1997
    Date of Patent: March 2, 1999
    Assignee: Eastman Kodak Company
    Inventors: Robert E. Dickerson, Anthony Adin, Marcia K. Hansen
  • Patent number: 5807666
    Abstract: The present invention provides a photographic element comprising an infrared light sensitive silver halide emulsion layer containing silver halide grains that exhibit low cubicity and are sensitized to a maximum absorption over 700 nm with a carbocyanine dye free of water soluble groups, wherein said layer additionally comprises a pyrimidino- or triazino-stilbene compound containing at least 6 sulfonic acid or sulfonate substituents.
    Type: Grant
    Filed: November 30, 1995
    Date of Patent: September 15, 1998
    Assignee: Eastman Kodak Company
    Inventors: Anthony Adin, Anne Troxell Wyand
  • Patent number: 5800976
    Abstract: A dual-coated radiographic element is disclosed comprised of a blue tinted film support having coated on each of its faces a spectrally sensitized high bromide tabular grain emulsion. The properties of a maximum density of at least 3.0, an average contrast of at least 2.7, and a b* value more negative than -5.0 at a silver coating coverage on each major surface of the support of less than 12 mg/dm.sup.2, are imparted by (1) the support having a neutral density of at least 0.18, (2) tabular grains accounting for at least 90 percent of total grain projected area having a mean thickness of 0.2 micrometer or less and a coefficient of variation of equivalent circular diameter less than 20 percent, (3) a covering power enhancing compound containing at least one divalent sulfur atom adsorbed to surfaces of the silver halide grains, (4) a water soluble polymer chosen from the class consisting of polyacrylamide and dextran, in a weight ratio of the polymer to the gelatino-vehicle of at least 0.
    Type: Grant
    Filed: May 28, 1997
    Date of Patent: September 1, 1998
    Assignee: Eastman Kodak Company
    Inventors: Robert E. Dickerson, Anthony Adin, Marcia K. Hansen
  • Patent number: 5759759
    Abstract: A dual-coated radiographic element is disclosed containing high bromide tabular grain emulsion layers exhibiting increased covering power and colder image tones. A covering power enhancing compound containing at least one divalent sulfur atom adsorbed to grain surfaces and a gelatino-vehicle are present in the emulsion layers. The emulsion layers additionally include a water soluble polymer chosen from the class consisting of polyacrylamide and dextran.
    Type: Grant
    Filed: May 28, 1997
    Date of Patent: June 2, 1998
    Assignee: Eastman Kodak Company
    Inventors: Anthony Adin, Robert E. Dickerson, Marcia K. Hansen
  • Patent number: 5576173
    Abstract: A silver halide photographic element comprising a silver halide emulsion layer sensitized with a sensitizing dye of formula (I) which provides a maximum sensitivity at greater than 700 nm and which emulsion layer has substantially no dye deaggregating compound therein: ##STR1## wherein: X.sub.1 and X.sub.2 are independently sulfur, selenium or oxygen provided that X.sub.1 and X.sub.2 are not both oxygen and either benzo ring may be substituted or unsubstituted;R.sub.1 and R.sub.2 each independently represent an alkyl, aryl or heterocyclic group provided that at least one of R.sub.1 or R.sub.2 has an acid or acid salt substituent;A is a counterion as needed to balance the charge.
    Type: Grant
    Filed: July 13, 1995
    Date of Patent: November 19, 1996
    Assignee: Eastman Kodak Company
    Inventors: Richard L. Parton, Anthony Adin
  • Patent number: 5395748
    Abstract: An inexpensive, ballasted optical brightener for use in photographic elements is prepared by reacting an optical brightener of the formula ##STR1## where M is a cation; X is a group capable of undergoing nucleophilic displacement; and Z is ##STR2## or --O--R.sub.3, where each of R1 and R2 is a hydrogen atom, or an aromatic group which can be unsubstituted or substituted with one or more groups unreactive towards X; and R3 is an aromatic group which can be unsubstituted or substituted with one or more groups unreactive towards Xwith a water soluble polymer, such as gelatin. The resulting ballasted optical brightener is stable in aqueous photographic compositions.
    Type: Grant
    Filed: December 8, 1993
    Date of Patent: March 7, 1995
    Assignee: Eastman Kodak Company
    Inventors: Anthony Adin, Pranab Bagchi
  • Patent number: 5364754
    Abstract: This invention provides a method of preparing a silver halide photographic emulsion which comprises adding to the silver halide emulsion before or during precipitation a non-labile chalcogen compound represented by Formula I:R.sup.1 --X.sup.1 --X.sup.2 --R.sup.2 (Formula I)It further provides a silver halide photographic emulsion prepared by the above method.
    Type: Grant
    Filed: October 29, 1992
    Date of Patent: November 15, 1994
    Assignee: Eastman Kodak Company
    Inventors: Sang H. Kim, Anthony Adin, Richard E. Beal, Jerzy A. Budz, Wai K. Lam, Mark A. Whitson
  • Patent number: 5298379
    Abstract: A radiation detecting element, particularly a photographic element having a radiation detecting composition, in particular a silver halide emulsion. The composition provides the element with a wavelength of peak sensitivity, .lambda.peaksens, and a decreasing sensitivity around .lambda.peaksens. An absorber dye of defined characteristics is chosen, which has the effect of decreasing the change in sensitivity which the element otherwise has without the absorber dye (that is, the absorber dye increases the wavelength range over which the sensitivity is relatively constant). The element is preferably sensitive to infra-red.
    Type: Grant
    Filed: June 30, 1992
    Date of Patent: March 29, 1994
    Assignee: Eastman Kodak Company
    Inventors: Anthony Adin, Richard L. Parton
  • Patent number: 5256519
    Abstract: Silver halide photographic elements which are capable of high contrast development and are especially useful in the field of graphic arts have incorporated therein a hydrazine compound which functions as a nucleator, an amino compound which functions as an incorporated booster, and a 2-substituted-4-hydroxy-1,3,3a,7-tetraazaindene which functions to inhibit pepper fog.
    Type: Grant
    Filed: March 2, 1992
    Date of Patent: October 26, 1993
    Assignee: Eastman Kodak Company
    Inventor: Anthony Adin