Organic Dye Or Pigment Containing Patents (Class 430/517)
  • Patent number: 6350554
    Abstract: High performance, very high contrast radiographic films exhibit visually adaptive contrast when imaged in radiographic imaging assemblies comprising intensifying screens. These films having at least two tabular silver halide emulsions on each side of a film support, and the emulsion closest to the film support on each side includes chemistry to control crossover and a rhodium dopant and has higher photographic speeds than the other emulsions. In addition, the films can be rapidly processed to provide images having visually adaptive contrast wherein the upper scale contrast is at least 1.7 times the lower scale contrast. These films are particularly useful for orthopedic imaging.
    Type: Grant
    Filed: November 6, 2000
    Date of Patent: February 26, 2002
    Assignee: Eastman Kodak Company
    Inventors: Robert E. Dickerson, Phillip C. Bunch
  • Publication number: 20020022201
    Abstract: A red sensitive photographic recording material is disclosed having an emulsion layer with low silver halide and low binder content. It further comprises a polyester support having subbing layers on both sides and an anti-halation layer on the back side.
    Type: Application
    Filed: June 26, 2001
    Publication date: February 21, 2002
    Inventors: Roland Claes, Stefaan Lingier, Etienne Van Thillo
  • Patent number: 6329128
    Abstract: An infrared photosensitive element comprising: a support bearing an infrared radiation-sensitive silver halide material; and an antihalation layer comprising a basic antistatic agent, an acid having a pKa less than 4.2 in an amount equal to at least 1.0% mole equivalent of acid to 1 mole equivalent of amine in said antistatic agent, and sufficient antihalation dye to provide a transmission optical density at the wavelength of maximum absorbence of said dye of at least 0.2 after coating.
    Type: Grant
    Filed: May 1, 1995
    Date of Patent: December 11, 2001
    Assignee: Eastman Kodak Company
    Inventors: Randall H. Helland, Charles W. Gomez, William D. Ramsden
  • Patent number: 6316179
    Abstract: An infrared sensitized photothermographic silver halide element comprising a support layer having on at least one surface thereof a photothermographic composition comprising a binder, a light insensitive silver source, a reducing agent for silver ion and infrared radiation sensitive preformed silver halide grains having number average particle size of <0.10 micron with at least 80% of all grains with ±0.05 microns of the average, in combination with an antihalation layer having an absorbance ratio of IR absorbance (before exposure)/visible absorbance (after processing) >30, and an IR absorbance of at least 0.3 within the range of 750-1400 and an optical density of less than 0.03 in the visible region.
    Type: Grant
    Filed: October 24, 2000
    Date of Patent: November 13, 2001
    Assignee: Eastman Kodak Company
    Inventors: Steven M. Shor, James B. Philip, Jr.
  • 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: 6307671
    Abstract: An optical filter comprises a transparent support and a filter layer. The filter layer contains a dye and a binder polymer. The dye is a methine dye in an aggregated form. The transparent support, the filter layer or an optional layer further contains a specific ultraviolet absorbing agent represented by the formula (I), (II), or (III).
    Type: Grant
    Filed: May 31, 2000
    Date of Patent: October 23, 2001
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Yoshiharu Yabuki
  • 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: 6300053
    Abstract: A photothermographic element has on a support a photo-sensitive layer, and a first non-photosensitive layer containing (1) a base-bleachable dye or a salt thereof and (2) a binder. The first non-photosensitive layer or a second non-photosensitive layer disposed adjacent thereto contains (3) a base precursor and (4) a melting point depressant. The dye (1) becomes more bleachable and the processed image becomes more water resistant.
    Type: Grant
    Filed: April 1, 1999
    Date of Patent: October 9, 2001
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Itsuo Fujiwara, Ichizo Toya, Masaki Noro
  • Patent number: 6300047
    Abstract: The present invention relates to a support base for light-sensitive photographic elements. In particular, the present invention relates to a support base comprising a support having coated thereon at least two antihalation layers overcoated by a protective layer. The support base for light-sensitive photographic elements of the present invention presents an improved coating quality with a reduced formation of mottle, defined as an irregularly patterned defect due to the tendency of the coated layers to reproduce any deformation present on the support.
    Type: Grant
    Filed: May 23, 2000
    Date of Patent: October 9, 2001
    Inventors: Wilma Massucco, Domenico Marinelli, Piero Cavalleri
  • 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: 6284821
    Abstract: A description is given of compounds of the formula I in which R1 is C1-C18alkyl; C5-C12cycloalkyl; C3-C6alkenyl; phenyl; C1-C18alkyl which is substituted by phenyl, OH, C1-C18alkoxy, C5-C12cycloalkoxy, C3-C18alkenyloxy, halogen, —COOH, —COOR4, —O—CO—R5, —O—CO—O—R6, —CO—NH2, —CO—NHR7, —CO—N(R7)(R8), CN, NH2, NHR7, —N(R7)(R8), —NH—CO—R5, phenoxy, C1-C18alkyl-substituted phenoxy, phenyl-C1-C4alkoxy, C6-C15bicycloalkoxy, C6-C15bicycloalkylalkoxy, C6-C15bicycloalkenylalkoxy, or C6-C15tricycloalkoxy; C5-C12cycloalkyl which is substituted by OH, C1-C4alkyl, C2-C6alkenyl or —O—CO—R5; glycidyl; —CO—R9 or —SO2—R10; or R1 is C3-C50alkyl which is interrupted by one or more oxygen atoms and/or substituted by OH, phenoxy or C7-C18alkylphenoxy; or R1 denotes the specific polymerizable radicals indicated in claim 1; R2 is C6-C18alky1; C2-C6alkenyl; p
    Type: Grant
    Filed: November 17, 2000
    Date of Patent: September 4, 2001
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Dietmar Hüglin, Vien Van Toan, Helmut Luther, Christophe Bulliard, Gerhard Rytz
  • Patent number: 6284442
    Abstract: A black and white monosheet thermographic recording material having a spectrophotometrically determined maximum absorption for visible light between 570 and 650 nm and comprising a support and a thermosensitive element, said thermosensitive element containing a substantially light-insensitive organic silver salt, an organic reducing agent therefor in thermal working relationship therewith and a binder, wherein the substantially light-insensitive black and white monosheet thermographic recording material contains at least two colorants with maximum absorption at a wavelength between 450 nm and 700 nm, none of the at least two colorants is an antihalation dye, and at least one of the at least two colorants is incorporated in the support; and photothermographic and thermographic recording processes therewith.
    Type: Grant
    Filed: November 23, 1999
    Date of Patent: September 4, 2001
    Assignee: Agfa-Gevaert
    Inventors: Guy Michel Van Ackere, Geert Defieuw, Ivan Hoogmartens, Johan August Loccufier
  • Patent number: 6270951
    Abstract: A thermographic recording material, thermally developable under substantially water-free conditions, comprising a support and a thermosensitive element, the thermosensitive element being provided with a protective layer and the thermosensitive element containing a substantially light-insensitive silver salt of an organic carboxylic acid, a reducing agent therefor in thermal working relationship therewith and a binder, wherein the protective layer contains at least one proteinaceous binder and non-opacifying inorganic particles with a weight averaged diameter of less than 1&mgr;m in a concentration of between 5 and 70% by weight with respect to the weight of the protective layer.
    Type: Grant
    Filed: December 14, 1999
    Date of Patent: August 7, 2001
    Assignee: Agfa-Gevaert
    Inventors: Eddy Michiels, Yvan Karel Gilliams, Geert Defieuw, Yvan Hoogmartens
  • Patent number: 6261753
    Abstract: The present invention relates to the use of dye-stuffs of the general formula I in which R1, R2 and R3 and M• are as defined in claim 1, as infra-red-absorbing agents in hydrophilic colloidal layers, for example in recording materials or for detection purposes, recording materials, for example photographic recording materials, which comprise such dyestuffs in hydrophilic colloidal layers, and new dyestuffs of the general formula I.
    Type: Grant
    Filed: March 12, 1998
    Date of Patent: July 17, 2001
    Assignee: Riedel-De Haen Aktiengesellschaft
    Inventors: Ralph Lonsky, Lutz Uwe Lehmann
  • Patent number: 6261733
    Abstract: According to the present invention, there is provided a silver salt diffusion transfer material, comprising on a hydrophilic surface of a support in the order given (i) an image receiving layer containing physical development nuclei, (ii) a photosensitive layer containing a silver halide emulsion being in water permeable relationship with said image receiving layer and (iii) a top layer containing gelatin, said silver halide emulsion being spectrally sensitized with a dye with a sensitizing maximum between 380 and 430 nm, characterized in that said top layer comprises a compound I and/or a compound II
    Type: Grant
    Filed: May 3, 2000
    Date of Patent: July 17, 2001
    Assignee: Agfa-Gevaert
    Inventors: Paul Coppens, Ludo Vervloet, Paul Callant
  • Patent number: 6248510
    Abstract: A motion picture intermediate film has on one side of a support material, in order, an antihalation undercoat and at least one silver halide emulsion layer; and on the opposite side of the support a transparent, process surviving antistatic backing layer. The transparent, antistatic backing layer retains its antistatic properties after photographic film processing so that the motion picture intermediate film is protected from the generation of static charge during high speed printing of, for example, motion picture print films. The antistatic backing layer of the invention has a resistivity of less than about 1×1011 &OHgr;/□ after film processing. In a most preferred embodiment, the motion picture intermediate film of the invention is used to print images onto a motion picture print film that has a transparent antistatic backing layer.
    Type: Grant
    Filed: April 10, 2000
    Date of Patent: June 19, 2001
    Assignee: Eastman Kodak Company
    Inventors: Charles C. Anderson, Eugene A. Armour, Robert J. Wilson, Robert P. Bouvy
  • Patent number: 6228569
    Abstract: A silver halide light sensitive photographic element is disclosed comprising a polyethylene terephthalate film base, at least one light sensitive silver halide-containing emulsion layer, an antihalation undercoat layer, and a process-surviving antistatic backcoat, wherein the polyethylene terephthalate film base has been formed by drafting a cast resin at a stretch ratio of at least 3.4, tentering at a stretch ratio of at least 3.4, and heat-setting at an actual heat-set temperature of at least 216° C. In accordance with preferred embodiments of the invention, the polyethylene terephthalate film base of the photographic element is formed by: (a) casting a molten polyethylene terephthalate resin in a machine direction onto a casting surface to form a continuous sheet, (b) drafting the sheet by stretching in the machine direction at a stretch ratio of from 3.4 to 4, and at a temperature ranging from 70 to 130° C.
    Type: Grant
    Filed: May 20, 1999
    Date of Patent: May 8, 2001
    Assignee: Eastman Kodak Company
    Inventors: Larry K. Maier, Timothy F. Cilano, Fred D. Kelley, Frank D. Manioci, Diana C. Petranek, Michael Schild
  • Patent number: 6214499
    Abstract: This invention comprises dispersion comprising a solvent having dispersed therein a liquid-crystal forming dye of structural Formula I: [D-(X)m]-(Y)n wherein: D is a light-absorbing chromophore other than a cyanine dye or a barbituric acid oxonol dye; each Y contains an ionic or a nonionic solubilizing substituent or a group with a pKa value of less than 4 in water; each X is a nonionic substituent; n is 0 to 10; m is 0-10; and the resulting dye forms a liquid-crystalline phase in solvent. The dispersion is particularly useful in imaging and photographic elements.
    Type: Grant
    Filed: September 11, 1998
    Date of Patent: April 10, 2001
    Assignee: Eastman Kodak Company
    Inventors: Margaret J. Helber, William J. Harrison, Raymond P. Scaringe
  • Patent number: 6210871
    Abstract: A silver halide color photographic light-sensitive material having at least one red-sensitive silver halide emulsion layer, at least one green-sensitive silver halide emulsion layer, at least one blue-sensitive silver halide emulsion layer and at least one nonlight-sensitive hydrophilic colloid layer containing black colloidal silver, on a support, contains a dye whose maximum absorption in the wavelength range of 400 nm to 1100 nm is given at a wavelength in an infrared region of 700 nm to 1100 nm, contains 3.2 g/m2 or less of silver in terms of silver, and has a transmission density of 1.7 or more at 950 nm.
    Type: Grant
    Filed: January 20, 1998
    Date of Patent: April 3, 2001
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yoshio Ishii, Yoshiharu Yabuki
  • Patent number: 6187521
    Abstract: The present invention is an imaging element which includes a support, an image forming layer superposed on the support; and at least one layer superposed on the support. The at least one layer superposed on the support is formed from a non-aqueous coating composition of a composite wax particle composed of a wax phase and a non-crosslinked polymer phase and an organic solvent. The wax phase includes a wax having a melting point of greater than 30° C. The wax comprises greater than 80% by weight of the wax phase. The wax phase to non-crosslinked polymer phase ratio is greater than 30/70 and less than 90/10.
    Type: Grant
    Filed: December 28, 1998
    Date of Patent: February 13, 2001
    Assignee: Eastman Kodak Company
    Inventors: Yongcai Wang, Janglin Chen, Dwight W. Schwark, James L. Bello
  • 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: 6180330
    Abstract: An imaging element comprising a reflective base and at least one gelatin containing layer said at least one layer comprising a dispersion of solid particle pigments of a particle size less than 1.0 micrometer.
    Type: Grant
    Filed: August 10, 1999
    Date of Patent: January 30, 2001
    Assignee: Eastman Kodak Company
    Inventors: Thaddeus S. Gula, Robert P. Bourdelais, John F. Sawyer, Mary Christine Brick
  • Patent number: 6177239
    Abstract: The present invention is an imaging element which includes a support, an image forming layer superposed on the support and at least one layer superposed on the support. The at least one layer is formed from a non-aqueous coating composition composed of a composite wax particle having a wax phase and a non-crosslinked polymer phase. The wax phase includes a wax having a melting point of greater than 30° C., the wax comprising greater than 80% by weight of the wax phase. The at least one layer has a dry coating weight of from 1 to 300 mg/m2.
    Type: Grant
    Filed: December 28, 1998
    Date of Patent: January 23, 2001
    Assignee: Eastman Kodak Company
    Inventors: Yongcai Wang, Janglin Chen, Dwight W. Schwark
  • Patent number: 6174657
    Abstract: A photothermographic element comprises: (a) a support bearing on one surface thereof (b) a photosensitive emulsion layer (i) a binder; (ii) a light-insensitive organic silver salt, (iii) a reducing agent, and (iv) a photosensitive silver halide emulsion; (c) an antihalation dye incorporated in the emulsion layer, in a polymer layer under the photosensitive layer, in the support, or in a backside polymer layer; and (d) one or more tinting dyes such that the final color space of the film lies within the range defined by 220°<hab<260°, where hab is the psychometric hue angle, hab=arctan(b*/a*), as defined in the CIELAB color system.
    Type: Grant
    Filed: June 24, 1998
    Date of Patent: January 16, 2001
    Assignee: Eastman Kodak Company
    Inventors: Charles H. Weidner, Dorothy T. Java, Stephen A. Hershey, Elizabeth K. Priebe
  • Patent number: 6174658
    Abstract: Disclosed is a silver halide photographic light sensitive material which has each of at least one silver halide photographic light sensitive emulsion layer and non-lightsensitive hydrophilic colloid layer, and solid fine particles of compound demonstrating fluorescent whitening effect in at least one of the silver halide photographic light sensitive emulsion layer and non-lightsensitive hydrophilic colloid layer. A silver halide photographic light sensitive material having an image excellent in sharpness and improved in whiteness and bright value of print is provided.
    Type: Grant
    Filed: November 3, 1998
    Date of Patent: January 16, 2001
    Assignee: Konica Corporation
    Inventor: Katsumasa Yamazaki
  • Patent number: 6165706
    Abstract: A photothermographic element has on a support a photosensitive layer and a non-photosensitive layer containing (1) a base precursor, (2) a base-bleachable dye or a salt thereof, and (3) a binder. A constituent layer on the same side of the support as the non-photosensitive layer contains (4) a water-soluble polymer other than gelatin. The element is improved in coating surface quality and minimized in residual color.
    Type: Grant
    Filed: April 7, 1999
    Date of Patent: December 26, 2000
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Itsuo Fujiwara, Ichizo Toya
  • Patent number: 6160037
    Abstract: Pigment composition obtainable by(a) mixing a latent pigment with a polymerizable substance, and(b) treating the mixture of step (a) with heat while mixing the reaction mixture, and(c) cooling the treated reaction mixture to room temperature, and, if desired, working up the obtained pigment composition, a process for its preparations, its use and compositions comprising it.
    Type: Grant
    Filed: July 8, 1998
    Date of Patent: December 12, 2000
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Johannes Leugs, Zhimin Hao, Abul Iqbal
  • Patent number: 6159673
    Abstract: An oxonol compound is represented by the following formula (I): ##STR1## in which Z is an atomic group that forms a cyclic amide ring; each of W.sup.1 and W.sup.2 independently is an atomic group that forms an acidic nucleus ring; and M is a cation. Other oxonol compounds, a light-sensitive material containing an oxonol compound and a process for the synthesis of an oxonol compound are also disclosed.
    Type: Grant
    Filed: January 20, 1999
    Date of Patent: December 12, 2000
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Junji Nishigaki, Yasuaki Deguchi
  • Patent number: 6153351
    Abstract: The invention relates to a photographic element comprising a paper base, at least one photosensitive silver halide layer, a layer of polymer sheet between said paper base and said silver halide layer, incorporating a thin tinted polymer layer directly below said silver halide layer.
    Type: Grant
    Filed: September 15, 1999
    Date of Patent: November 28, 2000
    Assignee: Eastman Kodak Company
    Inventors: Thaddeus S. Gula, Peter T. Aylward, Robert P. Bourdelais, Douglas N. Haydock
  • Patent number: 6146821
    Abstract: A (photo) thermographic recording material comprising a substantially colourless support and a (photo-addressable) thermosensitive element containing a substantially light-insensitive organic silver salt, an organic reducing agent for the substantially light-insensitive organic silver salt in thermal working relationship therewith (, photosensitive silver halide is catalytic association with the substantially light-insensitive organic silver salt) and a binder, characterized in that a blue pigment or dye having a maximum absorption wavelength of from 550 to 700 nm is present in the thermosensitive element and/or any other layer on either side of the support which provides a background for viewing in transmission images produced with the (photo) thermographic recording material; and a (photo) thermographic recording process therefor.
    Type: Grant
    Filed: June 17, 1998
    Date of Patent: November 14, 2000
    Assignee: Agfa-Gevaert
    Inventor: Hans Strijckers
  • Patent number: 6117624
    Abstract: An infrared sensitized photothermographic silver halide element comprising a support layer having on at least one surface thereof a photothermographic composition comprising a binder, a light insensitive silver source, a reducing agent for silver ion and infrared radiation sensitive preformed silver halide grains having number average particle size of <0.10 micron with at least 80% of all grains with .+-.0.05 microns of the average, in combination with an antihalation layer having an absorbance ratio of IR absorbance (before exposure)/visible absorbance (after processing) >30, and an IR absorbance of at least 0.3 within the range of 750-1400 and an optical density of less than 0.03 in the visible region.
    Type: Grant
    Filed: August 24, 1999
    Date of Patent: September 12, 2000
    Assignee: Eastman Kodak Company
    Inventors: Steven M. Shor, James B. Philip, Jr.
  • Patent number: 6114106
    Abstract: The present invention provides a photothermographic material which can provide an image having a high sharpness, exhibits a good transparency, is less liable to fog and is unsusceptible to discoloration during storage. The present invention also provides a photothermographic material which can provide a less fogged image having a high sharpness without using any mercury compound. A photothermographic material is provided comprising an anti-irradiation pigment incorporated in a photosensitive layer and an anti-irradiation dye incorporated in at least one light-insensitive layer on the same side of a support as the photosensitive layer.
    Type: Grant
    Filed: May 26, 1999
    Date of Patent: September 5, 2000
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Itsuo Fujiwara, Ichizo Toya
  • Patent number: 6093510
    Abstract: A dispersion comprises a solvent having dispersed therein a liquid-crystal forming dye of structural Formula I, II or III: ##STR1## wherein the substituent are as defined in the specification. The dispersion is particularly useful in imaging and photographic elements.
    Type: Grant
    Filed: September 11, 1998
    Date of Patent: July 25, 2000
    Assignee: Eastman Kodak Company
    Inventors: Margaret J. Helber, William J. Harrison, Kevin W. Williams, Steven W. Kortum
  • Patent number: 6087080
    Abstract: A negative-acting silver halide photographic element comprising a hydrophilic colloidal binder containing a silver halide emulsion and from 50 to 1000 milligrams of an anthraquinone per mole of silver halide.
    Type: Grant
    Filed: March 20, 1995
    Date of Patent: July 11, 2000
    Assignee: Minnesota Mining & Manufacturing Company
    Inventors: James A. Gavney, Jr., James E. Lindquist
  • Patent number: 6068967
    Abstract: A silver halide photographic material is disclosed which comprises a support having provided thereon at least one light-sensitive silver halide emulsion layer, wherein at least one photographic layer in the photographic material contains a high molecular weight compound having a repeating unit represented by formula (I) and a solid fine particle dispersion of a dye: ##STR1## wherein R.sub.1 represents a hydrogen atom or an alkyl group; R.sub.2 represents a hydrogen atom, an alkyl group or an aryl group; R.sub.3 and R.sub.4 each represents a hydrogen atom or an alkyl group; and M.sub.1 and M.sub.2 each represents a hydrogen atom or a cation.
    Type: Grant
    Filed: December 24, 1996
    Date of Patent: May 30, 2000
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Keiichi Suzuki, Tomokazu Yasuda
  • Patent number: 6063560
    Abstract: In a photographic photothermographic material comprising a organic silver salt, a silver halide, and a reducing agent on a transparent support, a specific hydrazine derivative and a specific squarylium dye are contained in suitable photosensitive or non-photosensitive layers on the support. The material is improved in Dmax, contrast, resolution, and residual color after processing.
    Type: Grant
    Filed: October 1, 1997
    Date of Patent: May 16, 2000
    Assignee: Fuji Photo Film Co., Ltd
    Inventors: Keiichi Suzuki, Toru Harada
  • Patent number: 6057085
    Abstract: A colour photographic material having a yellow filter layer containing at least one decolourisable dye or dye to be able to be rinsed out of the material of the formula (I) ##STR1## in which R.sub.1 and R.sub.2 mutually independently mean a substituted or unsubstituted alkyl group,R.sub.3 means a hydrogen or halogen atom, an alkyl or alkoxy groupR.sub.4 means a hydrogen atom, an alkyl or cyano group,R.sub.5 means a dissociable group having a pK.sub.a value of between 4 and 11 andX means an oxygen or sulphur atom,is distinguished in that the dyes are non-diffusible and completely decolourisable and do not impair the properties of the silver halide emulsions.
    Type: Grant
    Filed: November 17, 1998
    Date of Patent: May 2, 2000
    Assignee: Agfa-Gevaert NV
    Inventors: Klaus Sinzger, Hans Langen
  • Patent number: 6051364
    Abstract: A composition and methods for the use and manufacture thereof are provided for a polymeric dye. The composition comprises one or more aminoaromatic chromophores in conjunction with polymers having an anhydride group or the reaction products thereof. The composition is particularly useful as an underlaying antireflective coating with microlithographic photoresists for the absorbtion of near or deep ultraviolet radiation.
    Type: Grant
    Filed: April 9, 1998
    Date of Patent: April 18, 2000
    Assignee: International Business Machines Corporation
    Inventors: Christopher John Knors, Elwood Herbert Macy, Wayne Martin Moreau
  • Patent number: 6045986
    Abstract: The present invention provides a method of forming a dispersion of solid particles of a dye in a gelatin medium which includes the steps of milling the solid dye in the present of a glycerophospholipid dispersant in an aqueous medium and diluting the resulting dispersion with an aqueous solution containing a gelatin. In addition, a photographic element is provided comprising a support having coated thereon at least one silver halide emulsion layer and at least one additional gelatin layer that contains a dispersion of solid particles of a dye and a glycerophospholipid dispersant.
    Type: Grant
    Filed: May 18, 1998
    Date of Patent: April 4, 2000
    Assignee: Tulalip Consultoria Commerial Sociedade Unipessoal S.A.
    Inventors: Philip I. Mayo, Valerie Millar, Mark P. Kirk
  • Patent number: 6045985
    Abstract: Photographic elements are disclosed having on a support a silver halide emulsion layer sensitive to radiation other than blue light in addition to its intrinsic sensitivity to blue region, and a yellow filter layer between the silver halide emulsion layers and the source of exposure, the yellow filter layer containing a yellow filter dye represented by the structural formula: ##STR1## wherein: R is hydrogen, alkyl group or aryl group;R.sub.1 is aryl group or heterocyclic group;X is O or N--R.sub.2 where R.sub.2 is hydrogen or alkyl group;Y is N--R.sub.3 where R.sub.3 is hydrogen or alkyl group;n is 0 or 1;Z is hydrogen, alkyl group or aryl group;W is hydrogen, or W and Z, taken together, represent the atoms necessary to form an aryl group.
    Type: Grant
    Filed: November 23, 1998
    Date of Patent: April 4, 2000
    Assignee: Tulalip Consultoria Comercial Sociedade Unipessoal S.A.
    Inventors: Piero Cavalleri, Sergio Massirio
  • Patent number: 6037112
    Abstract: A radiation-sensitive medical diagnostic film for soft tissue imaging, particularly mammography, is disclosed. The film allows more rapid processing than films currently available for mammographic imaging and maintains acceptably high levels of image sharpness and low levels of mottle. The radiographic film records medical diagnostic images of soft tissue through (a) exposure by a single intensifying screen located to receive an image bearing source of X-radiation and (b) processing, including development, fixing and drying, in 90 seconds or less comprised of a film support transparent to radiation emitted by the intensifying screen and having opposed front and back major faces and an image-forming portion for providing, when imagewise exposed by the intensifying screen and processed, an average contrast in the range of from 2.5 to 3.5, measured over a density above fog of from 0.25 to 2.0.
    Type: Grant
    Filed: October 14, 1998
    Date of Patent: March 14, 2000
    Assignee: Eastman Kodak Company
    Inventor: Robert E. Dickerson
  • Patent number: 6033841
    Abstract: A color photographic silver halide material having at least two red-sensitive, cyan-coupling silver halide emulsion layers of different photographic sensitivity, at least two green-sensitive, magenta-coupling silver halide emulsion layers of different photographic sensitivity and at least one blue-sensitive, yellow-coupling silver halide emulsion layer, and having intermediate layers at least between silver halide emulsion layers of different color sensitivity, wherein at least one color coupler is provided in an intermediate layer which is directly adjacent to a lowest-sensitivity silver halide emulsion layer which is sensitive to a defined spectral region and which couples to the complementary color, which color coupler couples in a non-complementary manner with respect to the aforementioned lowest-sensitivity silver halide emulsion layer, is distinguished by its improved reproduction of yellow color shades.
    Type: Grant
    Filed: March 6, 1998
    Date of Patent: March 7, 2000
    Assignee: AGFA-Gevaert NV
    Inventors: Peter Bell, Hans-Ulrich Borst, Ralf Buscher, Jorg Siegel, Rainer Scheerer, Heinz Schutz
  • Patent number: 6027866
    Abstract: A silver halide photographic element has a silver halide emulsion layer primarily containing tabular silver halide grains and a hydrophilic colloid layer, either of which contains a pigment with a maximum absorption wavelength of 570-650 nm dispersed in lipophilic droplets of a high-boiling organic solvent. The photographic element has a high sensitivity and high silver covering power, and is improved in the transmission and reflection blackness of image silver and staining of fluorescent intensifying screens.
    Type: Grant
    Filed: November 4, 1998
    Date of Patent: February 22, 2000
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Tomoyuki Ohzeki
  • Patent number: 6004718
    Abstract: A transfer material colored to a predetermined color is used when images are formed on a transfer material for use in thermal transfer comprising a substrate and a dye receiving layer by a thermal transfer process.When images are formed by an optional image forming method such as silver salt photographic process, ink jet process or thermal transfer process, a transfer material having sepia tone is used in each of the image forming processes thereby forming sepia tone images. Images having unique appearance can be formed easily upon forming images by a thermal transfer process. Images of sepia tone can be formed safely and conveniently.
    Type: Grant
    Filed: April 1, 1999
    Date of Patent: December 21, 1999
    Assignee: Sony Corporation
    Inventor: Satoru Shinohara
  • Patent number: 6001547
    Abstract: The invention relates to a photographic element comprising a paper base, at least one photosensitive silver halide layer, a layer of polymer sheet between said paper base and said silver halide layer, incorporating a thin tinted polymer layer directly below said silver halide layer.
    Type: Grant
    Filed: December 24, 1997
    Date of Patent: December 14, 1999
    Assignee: Eastman Kodak Company
    Inventors: Thaddeus S. Gula, Peter T. Aylward, Robert P. Bourdelais, Douglas N. Haydock
  • Patent number: 5998126
    Abstract: A photothermographic material comprising a photosensitive silver halide emulsion layer on one surface of a support is to be exposed to laser light having a wavelength of less than 700 nm. The silver halide of the emulsion layer has a grain size of 0.01-0.1 .mu.m. A suitable dye is contained in the emulsion layer such that the layer may have an absorbance of 0.3-1.2 at the exposure wavelength. An image containing minimized interference fringes is obtainable.
    Type: Grant
    Filed: May 8, 1997
    Date of Patent: December 7, 1999
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Ichizo Toya, Toru Harada
  • Patent number: 5998117
    Abstract: A silver halide photographic light-sensitive material is disclosed. The light-sensitive material comprises a support and one or more photographic constituent layers and at least one of said layers contains a dye capable of being decolored by reacting with a color developing agent.
    Type: Grant
    Filed: March 6, 1997
    Date of Patent: December 7, 1999
    Assignee: Konica Corporation
    Inventors: Motoaki Sugino, Nobuaki Kagawa, Shigeto Hirabayashi, Atsushi Tomotake, Satoshi Nakagawa
  • Patent number: 5994046
    Abstract: A silver halide color photographic light-sensitive material comprising a support having thereon photographic constituent layers comprising at least three silver halide emulsion layers each having a spectral sensitivity different from one another and containing yellow, magenta and cyan color forming couplers, respectively and a light-insensitive hydrophilic colloid layer, wherein the cyan color forming coupler is at least one dye forming coupler represented by the formula (I) shown below, at least one of the silver halide emulsion layers containing the cyan color forming coupler contains a silver halide emulsion composed of high silver chloride content grains having a silver chloride content of 80 mol % or more, and the high silver chloride content grains are tabular silver halide grains having (100) faces as major faces: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.
    Type: Grant
    Filed: June 11, 1997
    Date of Patent: November 30, 1999
    Assignee: Fuji Photo Film Co., LTD.
    Inventor: Kiyoshi Kawai