Developing Inhibitor Or Processing Ingredient Containing Patents (Class 430/505)
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Patent number: 5935773Abstract: A colour photographic silver halide material with a support, at last one silver halide emulsion layer containing at least one yellow coupler and at least one silver halide emulsion layer containing a cyan coupler applied thereon, in which material the silver halide emulsion layer, of which there is at least one, containing at least one yellow coupler and/or the silver halide emulsion layer, of which there is at least one, containing at least one cyan coupler contains a compound of the formula (I) ##STR1## in which R.sub.1, R.sub.2, R.sub.3 mean alkyl, alkenyl or acyl andn means 6, 7 or 8,is distinguished by improved stability of the image dyes produced by processing.Type: GrantFiled: April 29, 1996Date of Patent: August 10, 1999Assignee: Agfa-Gevaert AGInventors: Jorg Hagemann, Gunter Helling
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Patent number: 5932402Abstract: A colour photographic recording material, comprising of a transparent film base, red-sensitive, green-sensitive and blue-sensitive silver halide emulsion layer units which are disposed thereon and which contain colour couplers, and optionally of further light-insensitive layers, wherein the green-sensitive silver halide emulsion layer unit comprises at least two green-sensitive partial layers, the partial layer of which which is furthest from the film base has the highest sensitivity and is situated further from the film base than is each partial layer of the red-sensitive silver halide emulsion layer unit, and wherein each partial layer of the blue-sensitive silver halide emulsion layer unit is situated further from the film base than is the highest-sensitivity partial layer of the green-sensitive silver halide emulsion layer unit, contains, in the highest-sensitivity partial layer of the green-sensitive silver halide emulsion layer unit, an organic yellow dye which can be decolorised during processing; theType: GrantFiled: December 16, 1997Date of Patent: August 3, 1999Assignee: Agfa-Gevaert AGInventors: Heinz Schutz, Rainer Scheerer, Klaus Sinzger
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Patent number: 5932401Abstract: Silver halide photographic elements which are capable of producing reversal images are disclosed including a substantially non-image forming overcoat or intercoat layer comprising an image forming emulsion and a non-image forming emulsion. The combination of imaging emulsion and nonimaging emulsion in a substantially non-image forming overcoat or intercoat layer results in an increase in interlayer interimage effects.Type: GrantFiled: August 21, 1997Date of Patent: August 3, 1999Assignee: Eastman Kodak CompanyInventor: Keath T. Chen
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Patent number: 5928847Abstract: This invention contemplates a multilayer, multicolor photographic element comprising a support, a plurality of dye-forming hydrophilic colloid containing silver halide emulsion layers which are spectrally sensitized to different regions of the visible spectrum including at least one blue-sensitive emulsion layer, a green-sensitive emulsion layer, and a red-sensitive emulsion layer. Each of the silver halide emulsion layers includes imaging silver having at least 25 weight percent ultrathin tabular grains having a thickness of less than 0.07 microns. One of the silver halide emulsion layers is a topmost silver halide emulsion layer having a water swell percentage which is greater than any other light-sensitive emulsion layer.Type: GrantFiled: March 13, 1998Date of Patent: July 27, 1999Assignee: Eastman Kodak CompanyInventors: Gary W. Visconte, Alfred B. Fant, Yongcai Wang, Ronald G. Olsen
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Patent number: 5922524Abstract: A colour photographic recording material having camera sensitivity, possessing on a transparent support at least one silver halide emulsion layer unit which is sensitive to part of the visible spectrum and consists of at least the following constituent layers:a) a spectrally sensitised silver halide emulsion layer containing an effective quantity of a FAR coupler (coupler, which during coupling releases groups producing fogging nuclei) and optionally a colour coupler, the latter during the colour development process coupling with a dye of which the colour is complementary to the spectral sensitisation of layer a), andb) a fine-grained silver halide emulsion layer having low light-sensitivity, of which the silver halide grains are not spectrally sensitised, being a layer adjacent to layer a),with layer b) containing a colour coupler which during the colour development process couples with a dye of which the colour is complementary to the spectral sensitisation of layer a) and the molar quantity of colour couplType: GrantFiled: February 3, 1997Date of Patent: July 13, 1999Assignee: Agfa-Gevaert AGInventors: Ralf Buscher, Peter Bell, Hans-Ulrich Borst, Jorg Siegel, Johannes Willsau, Heinrich Odenwalder
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Patent number: 5888716Abstract: The invention provides a photographic element comprising a red light sensitive silver halide emulsion layer having associated therewith a cyan dye forming coupler having Formula (I) and a green light sensitive silver halide emulsion layer having associated therewith a magenta dye forming coupler having formula IIA or IIB: ##STR1## wherein the substituents are as defined herein.Type: GrantFiled: August 20, 1996Date of Patent: March 30, 1999Assignee: Eastman Kodak CompanyInventors: James Lawrence Edwards, Philip T. S. Lau, Stanley Wray Cowan
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Patent number: 5885760Abstract: A color photographic recording material having at least one silver halide emulsion layer unit containing color coupler, which unit comprises at least two adjacent silver halide emulsion partial layers of the spectral sensitivity concerned, one of which is more sensitive and one less sensitive, contains in a reactive association with at least one more sensitive silver halide emulsion partial layer having a comparatively low color coupler content relative to the silver halide content, a compound (or a precursor compound thereof), which is capable under chromogenic development conditions of forming a substantially colorless, diffusible coupling product with the color developer oxidation product, which coupling product is capable under chromogenic development conditions in the presence of an oxidising agent of forming a dye with a color coupler, with transfer of the residue originating from the color developer.On chromogenic development, color images having improved grain are obtained.Type: GrantFiled: August 5, 1997Date of Patent: March 23, 1999Assignee: Agfa-Gevaert AGInventors: Peter Bergthaller, Jurgen Strobach
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Patent number: 5879867Abstract: A silver halide light sensitive photographic element is disclosed comprising a support bearing at least one yellow image forming hydrophilic colloid layer comprising yellow image dye forming couplers, at least one hydrophilic colloid layer immediately adjacent to the yellow image forming layer, and at least one adjacent cyan or magenta image forming hydrophilic colloid layer comprising cyan or magenta image dye forming couplers; wherein the yellow image forming layer is substantially free of high boiling permanent solvent, any immediately adjacent hydrophilic colloid layers and the adjacent image forming layer are substantially free of high boiling permanent solvents having a logP value of less than about 5.5, and the adjacent image forming layer contains a high boiling permanent solvent having a logP value of at least about 5.5.Type: GrantFiled: August 22, 1997Date of Patent: March 9, 1999Assignee: Eastman Kodak CompanyInventors: Paul L. Zengerle, Gary N. Barber, Leslie Gutierrez
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Patent number: 5866311Abstract: The present invention concerns a color reversible photographic product In particular, the present invention concerns a new photographic product which has a increase in the exposure latitude of one of the silver halide emulsion layers with which a dye-forming coupler is associated without changing the chromatic balance. This increase in the exposure latitude makes it possible to improve the details of the dye image.Type: GrantFiled: September 12, 1997Date of Patent: February 2, 1999Assignee: Eastman Kodak CompanyInventors: Gerard M. Droin, Yannick Begel
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Patent number: 5851741Abstract: The present invention provides a method for forming color images by processing in a short period of time color photographic materials containing at least one oil-soluble coupler with a color developer which does not substantially contain benzyl alcohol, wherein a silver halide color photographic material having at least one silver halide emulsion layer on a reflective support, the emulsion layer containing a dispersion of oleophilic fine grains having a mean grain size of 0.25 .mu.m or less, which contain a coupler capable of forming a dye after having been coupled with an oxidation product of an aromatic primary amine developing agent, and at least one high boiling organic solvent having a dielectric constant of 4.00 or more (25.degree. C., 10 KHz). The photographic material is imagewise exposed and then subjected to development with a color developer which contains an aromatic primary amine developing agent but does not substantially contain benzyl alcohol for 2 minutes and 30 seconds or less.Type: GrantFiled: September 6, 1994Date of Patent: December 22, 1998Assignee: Fuji Photo Film Co., Ltd.Inventors: Osamu Takahashi, Hideaki Naruse, Nobuo Sakai
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Patent number: 5851745Abstract: There is disclosed a silver halide photographic light-sensitive material that contains at least one color-developing agent of formula (I) and at least one dye-forming coupler of formula (II) contained in one or more photographic constitutional layers provided on a base: ##STR1## in formula (I), Z is a carbamoyl group or the like, and Q represents a group of atoms required to form an unsaturated ring together with the C, and in formula (II), M represents a coupler component capable of causing coupling reaction at the site where G is bonded with the oxidized color-developing agent, G is a hydrogen atom or a coupling split-off group, Y.sup.1 and Y.sup.2 each represent a group having a dissociation group, whose pKa is 1 or more but 12 or less, and n and m are each an integer of 0 to 3, provided that n+m.gtoreq.1. There is also disclosed an image-forming method using the light-sensitive material.Type: GrantFiled: August 7, 1997Date of Patent: December 22, 1998Assignee: Fuji Photo Film Co., Ltd.Inventor: Kiyoshi Takeuchi
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Patent number: 5834172Abstract: A photographic coating composition comprising an aqueous medium containing a hydrophilic colloid and having dispersed therein solid particles of a yellow filter dye also contains a oxidized developer scavenger of formula III ##STR1## wherein x.sup.1 =hydrogen or a process cleavable group;R.sup.14 =an electron withdrawing and aqueous solubilizing group;R.sup.15 =a substituent group;R.sup.16 =a ballasting group;R.sup.17 =a substituent group;i=1, 2, 3, or 4; andj=1, 2, 3, or 4.The coating composition is stable with regard to crystal growth of the dispersed solid particles of filter dye even when held at coating temperatures (about 45.degree. C.) for several hours.Type: GrantFiled: February 23, 1996Date of Patent: November 10, 1998Assignee: Eastman Kodak CompanyInventors: Paul Leo Zengerle, John Victor Nelson, Mary Christine Brick
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Patent number: 5830627Abstract: A silver halide color photographic material is described, which comprises a support having provided thereon a blue-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer, and a red-sensitive silver halide emulsion layer, wherein the photographic material contains at least one compound having a photographically useful compound which is inactivated by the chelation with a metal, and the ratios of the gradients of yellow, magenta and cyan in specific development processing II to the gradients thereof in specific development processing I satisfy the following conditions:0.8.ltoreq..gamma..sub.II (Y)/.gamma..sub.I (Y).ltoreq.1.20.8.ltoreq..gamma..sub.II (M)/.gamma..sub.I (M).ltoreq.1.20.8.ltoreq..gamma..sub.II (C)/.gamma..sub.I (C).ltoreq.1.2wherein .gamma..sub.I (Y), .gamma..sub.I (M) and .gamma..sub.I (C) each represents the gradient of yellow, magenta or cyan when the development processing I is carried out and .gamma..sub.II (Y), .gamma..sub.II (M) and .gamma..sub.Type: GrantFiled: April 2, 1997Date of Patent: November 3, 1998Assignee: Fuji Photo Film Co., Ltd.Inventors: Yasufumi Nakai, Jiro Tsukahara, Toshio Kawagishi
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Patent number: 5830625Abstract: A silver halide color photographic material is disclosed, comprising a support having thereon at least two light-sensitive silver halide emulsion layers, the lowermost light-sensitive silver halide emulsion layer and/or a light-insensitive layer adjacent thereto containing a compound represented by formula (D): ##STR1## wherein R.sup.1 and R.sup.2 each represents an alkyl group, an aryl group or a heterocyclic group, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 each represents a hydrogen atom, a halogen atom or a substituent connecting to the benzene ring through a carbon atom, an oxygen atom, a nitrogen atom or a sulfur atom, R.sup.1 and R.sup.2, R.sup.1 and R.sup.3, R.sup.3 and R.sup.4, R.sup.2 and R.sup.5 or R.sup.5 and R.sup.6 may be combined to form a ring, R.sup.7 represents a hydrogen atom or forms=(T).sub.m S together with -(T).sub.m S, T represents a timing group, m represents an integer of 0 to 3 and S represents a protective group eliminated at the development.Type: GrantFiled: July 12, 1996Date of Patent: November 3, 1998Assignee: Fuji Photo Film Co., Ltd.Inventor: Shigeo Hirano
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Patent number: 5830628Abstract: A colour photographic silver halide material with at least two blue-sensitive, yellow-coupling silver halide emulsion layers of differing photographic sensitivity, at least two green-sensitive, magenta-coupling silver halide emulsions layers of differing photographic sensitivity and at least two red-sensitive, cyan-coupling silver halide emulsion layers of differing photographic sensitivity, at least one interlayer Z-1 below the lowermost red-sensitive silver halide emulsion layer and/or at least one interlayer Z-2 below the lowermost green-sensitive silver halide emulsion layer, in which material a coupler is additionally used in at least one silver halide emulsion layer, which coupler couples to yield a colour which is not complementary to the spectral sensitisation of the layer concerned, and Z-1 and/or Z-2 contain a silver halide emulsion which has tabular grains with an aspect ratio of >2, an average diameter of a sphere of equal volume of .gtoreq.0.3 .mu.Type: GrantFiled: July 10, 1996Date of Patent: November 3, 1998Assignee: Agfa-GeuaertInventors: Hans-Ulrich Borst, Detlef Brennecke, Ralf Buscher, Johannes Willsau, Peter Bell
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Patent number: 5827637Abstract: A silver halide light-sensitive material is disclosed, comprising a compound represented by the following formula (1): ##STR1## wherein PUG represents a photographically useful group bonded to B through a hetero atom thereof, CHL represents a multidentate ligand capable of coordinating to a metal atom, B represents a block group of which bonding to PUG is cleaved on cleavage of the bonding of CHL--M, M represents a divalent or greater metal, L represents a chelating ligand, m represents an integer of from 1 to 3, n represents 0 or an integer of 1 or 2, and the sum of m and n does not exceed 3. Also disclosed is an image formation method using the above-described silver halide light-sensitive material.Type: GrantFiled: March 19, 1997Date of Patent: October 27, 1998Assignee: Fuji Photo Film Co., Ltd.Inventors: Osamu Uchida, Jiro Tsukahara, Toshio Kawagishi, Hideaki Satoh, Yasufumi Nakai
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Patent number: 5827638Abstract: A silver halide photographic light-sensitive material is described, which comprises a support having provided thereon a light-sensitive silver halide emulsion layer, wherein the silver halide photographic material contains a compound having been blocked by a metal chelate and capable of releasing a photographically useful compound therefrom through a reaction of the metal chelate moiety with a water-soluble chelating agent capable of forming a metal chelate having a higher stability constant on development. A method for forming an image is also described, which comprises processing, after imagewise exposure, a silver halide photographic light-sensitive material with a processing solution containing a nitrogen-containing heterocyclic carboxylic acid-base chelating agent.Type: GrantFiled: March 20, 1997Date of Patent: October 27, 1998Assignee: Fuji Photo Film Co., Ltd.Inventors: Jiro Tsukahara, Hideaki Satoh, Osamu Uchida, Toshio Kawagishi, Yasufumi Nakai
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Patent number: 5821043Abstract: This invention provides a photographic element comprising a support bearing one or more silver halide emulsions and one or more pyrazolone magenta dye-forming DIR couplers of structure I: ##STR1## wherein: the R.sub.1 substituents are individually selected from halogen atoms and alkyl, phenyl, alkoxy, phenoxy, alkylthio, carbonamido, sulfonamido, carbamoyl, alkoxycarbonyl, and aryloxycarbonyl groups;n is 0 to 5;R.sub.2 is an alkyl group or a phenyl group; andR.sub.3 is an alkylthio group, an arylthio group, an alkoxycarbonyl group or an aryloxycarbonyl group.Type: GrantFiled: December 30, 1996Date of Patent: October 13, 1998Assignee: Eastman Kodak CompanyInventors: Paul B. Merkel, David A. Steele, Jerrold N. Poslusny
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Patent number: 5817452Abstract: A heat developable color light-sensitive material provided on a support, which is for use in an image forming process comprising using a dye fixing element provided on a support separate from the support for the light-sensitive material, superposing one on another, heat developing to form a diffusible dye in the light sensitive material, and transferring the diffusible dye to the dye fixing element to form an image, is disclosed.Type: GrantFiled: September 19, 1997Date of Patent: October 6, 1998Assignee: Fuji Photo Film Co., Ltd.Inventor: Tetsu Kamosaki
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Patent number: 5792599Abstract: Provided is a color photographic material excellent in discrimination and color reproducibility, which has a support and at least a light-sensitive silver halide, a binder, a coupler and a coupling developing agent provided thereon, and at least three light-sensitive emulsion layers having spectral sensitivities in different wavelength regions, respectively, in which at least two different coupling development agents are contained in different light-sensitive emulsion layers.Type: GrantFiled: September 20, 1996Date of Patent: August 11, 1998Assignee: Fuji Photo Film Co., Ltd.Inventor: Toshiki Taguchi
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Patent number: 5750320Abstract: Silver halide light sensitive photographic print elements are disclosed comprising a support bearing on one side thereof: a blue color sensitive record comprising at least one blue-sensitive silver halide emulsion yellow-image forming layer, a red color sensitive record comprising at least one red-sensitive silver halide emulsion cyan-image forming layer, and a green color sensitive record comprising at least one green-sensitive silver halide emulsion magenta-image forming layer; wherein at least one of the color records has a fixed best fit contrast less than or equal to 2.2, wherein the fixed best fit contrast for a color record is defined as the slope of a straight line connecting a point B and a point C on the characteristic curve of Status A density versus log Exposure for the color record, where points B and C are located by defining a point A on the characteristic curve at the log Exposure required to attain a density level of 1.Type: GrantFiled: February 16, 1996Date of Patent: May 12, 1998Assignee: Eastman Kodak CompanyInventors: Mitchell Joseph Bogdanowicz, Charles Peter Hagmaier, Leslie Gutierrez
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Patent number: 5747230Abstract: A photographic silver halide color print material comprising a support and yellow, magenta and cyan dye image forming layer units comprising at least one silver halide emulsion layer and at least one dye image-forming coupler which material contains a total silver halide coating weight less than 150 mg/m.sup.2 (as silver) and wherein the grain size (average volume in cubic microns) of the emulsion(s) is less than 1.0 (.mu.m).sup.3 in the yellow image forming unit and less than 0.125 (.mu.m).sup.3 in the magenta image forming unit and wherein each layer unit of the material has a dye image-forming efficiency (E) under conditions of use of above 30 where: ##EQU1## wherein the emulsion(s) of the cyan dye image forming layer unit have a silver coating weight less than 50 mg/m.sup.2, and an average grain size less than 0.064 (.mu.m).sup.Type: GrantFiled: December 22, 1995Date of Patent: May 5, 1998Assignee: Eastman Kodak CompanyInventors: John Arthur Bee, John Kenneth Charles Kempster, Gareth Evans
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Patent number: 5744287Abstract: The invention relates to a photographic element comprising a layer comprising a cyan dye forming coupler, a layer comprising a magenta dye forming coupler and a layer comprising a yellow dye forming coupler, wherein said layers further comprise silver halide emulsions, said emulsions comprise greater than 95 percent chloride and said element when exposed at less than 50 microseconds per pixel in each color record and at a resolution between 200 and 500 pixels per inch provides after development a maximum gamma between 3.4 and 6.0 in at least one color record layer within a log exposure range not exceeding 1.1.Type: GrantFiled: November 17, 1995Date of Patent: April 28, 1998Assignee: Eastman Kodak CompanyInventors: Michael Richard Roberts, Alphonse Dominic Camp, Richard Lee Parton, Daniel John Collins
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Patent number: 5736303Abstract: The invention relates to a photographic element comprising at least one layer comprising at least one substituted hydroquinone and adjacent said at least one layer comprising substituted hydroquinone, at least one layer comprising coupler Magenta-1 ##STR1## wherein R.sub.a and R.sub.b independently represent H or a substituent; R.sub.c is a substituent; X is hydrogen or a coupling-off group; and Z.sub.a, Z.sub.b, and Z.sub.c are independently a substituted methine group, .dbd.N--, .dbd.C--, or --NH--, provided that one of either the Z.sub.a --Z.sub.b bond or the Z.sub.b --Z.sub.c bond is a double bond and the other is a single bond, and when the Z.sub.b --Z.sub.c bond is a carbon-carbon double bond, it may form part of an aromatic ring, and at least one of Z.sub.a, Z.sub.b, and Z.sub.c represents a methine group connected to the group R.sub.b, wherein the ratio of gelatin to organic component in said layer comprising magenta 1 is greater than 1.Type: GrantFiled: June 7, 1996Date of Patent: April 7, 1998Assignee: Eastman Kodak CompanyInventors: Gary John McSweeney, Alphonse Dominic Camp, Vincent James Flow
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Patent number: 5736299Abstract: A silver halide color photographic material is disclosed, wherein it comprises a support having thereon one or more constituent layers including at least one silver halide emulsion layer, wherein at least one hydrophilic colloid layer of said constituent layers contains a coupler represented by the following formula (M) or formula (I) and at least one hydrophilic colloid layer of said constituent layers contains a compound represented by the following formula (H): ##STR1##Type: GrantFiled: January 23, 1996Date of Patent: April 7, 1998Assignee: Fuji Photo Film Co., Ltd.Inventors: Toshiyuki Watanabe, Hiroshi Fukuzawa, Michio Ono, Takashi Nakamura
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Patent number: 5736307Abstract: Silver halide photographic element comprising a support having coated thereon red-, green- and blue-sensitive silver halide emulsion layers comprising, respectively, cyan, magenta and yellow dye-forming couplers, wherein at least one silver halide emulsion layer comprises a yellow dye-forming DIR coupler having a 1,2,4-triazolyl group attached to the coupling position, said 1,2,4-triazolyl group comprising a hydrolyzable alkoxy- or aryloxy-carbonyl group attached to a benzylthio substituent on the 1,2,4-triazolyl group.Preferably, the yellow dye-forming DIR coupler is represented by the formula ##STR1## wherein R.sub.1 represents an alkyl group, an aryl group or --NHR.sub.5, wherein R.sub.5 represents an alkyl group or an aryl group,R.sub.2 represents an alkyl group or an aryl group, TIME represents a timing group,n is 0 or 1,R.sub.3 represents an alkyl group or a phenyl group, andR.sub.4 represents hydrogen atom or an alkyl group.Type: GrantFiled: April 8, 1996Date of Patent: April 7, 1998Assignee: Imation CorpInventors: Massimo Bertoldi, Antonio Poggi, Enzo Coraluppi
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Patent number: 5736306Abstract: Spectral properties of dye images produced from low silver halide coverage materials are improved by using dyes which are formed in the magenta, yellow and cyan image dye-forming units. These dyes have certain spectral characteristics, as determined by their unwanted absorptions, in combination with certain silver halide emulsion grain characteristics in each emulsion layer. In particular, reduction of unwanted absorptions can be achieved either with couplers per se which meet these characteristics or by the use of certain high-boiling solvents in the coupler dispersions at preferred levels.Type: GrantFiled: December 21, 1995Date of Patent: April 7, 1998Assignee: Eastman Kodak CompanyInventors: Gareth Bryn Evans, John Kenneth Charles Kempster, Danuta Gibson
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Patent number: 5731138Abstract: A color photographic material which contains in at least one layer a stabilizer of the formula (I) ##STR1## in which R.sub.1 means H, alkyl, aryl or acyl;R.sub.2 means --OR.sub.1, --COOH, alkyl, aryl, dialkylamino, acylamino, sulphonamido, acyl or sulphonyl;R.sub.3, R.sub.4, R.sub.5 and R.sub.6 independently of one another mean H, halogen or a residue as R.sub.2 or two adjacent residues --OR.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 may together complete a 5- to 8-membered ring, and a polymer insoluble in water as pH 5 and soluble at pH 11 with an acid value of 30 to 300 and a Tg of.ltoreq.40.degree. C. of the formula (II) ##STR2## in which R.sub.7 mutually independently mean hydrogen, C.sub.1 -C.sub.4 alkyl or CH.sub.2 --COOH,R.sub.8 means alkyl, aryl or aralkyla means 80 to 95 mol. % andb means 5 to 20 mol. %, is distinguished by improved stability of the image dyes.Type: GrantFiled: January 26, 1996Date of Patent: March 24, 1998Assignee: Agfa-Gevaert AGInventors: Gunter Helling, Beate Weber, Markus Geiger
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Patent number: 5731136Abstract: TiO.sub.2 with an average primary particle diameter of 10 to 100 nm is suitable as a UV absorber for photographic materials.Type: GrantFiled: March 19, 1996Date of Patent: March 24, 1998Assignee: Agfa-GevaertInventor: Arno Schmuck
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Patent number: 5728513Abstract: A silver halide color photographic light sensitive material is disclosed, comprising a support having thereon a silver halide emulsion layer containing a sensitizing dye represented by formula (I) and a coupler represented by formula (M-I). The photographic material further contains a coupler represented by formula (C-I) or (C-II).Type: GrantFiled: February 22, 1996Date of Patent: March 17, 1998Assignee: Konica CorporationInventors: Hiroshi Okusa, Yasuhiko Kawashima
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Patent number: 5698383Abstract: This invention provides a color silver halide photographic element comprising a support having situated thereon a red light-sensitive, cyan dye-forming unit; a green light-sensitive, magenta dye-forming unit; and a blue light-sensitive, yellow dye-forming unit. The photographic element further comprising a first layer and a second layer, the second layer being a layer which provides a site of development for solution physical development.Type: GrantFiled: December 28, 1995Date of Patent: December 16, 1997Assignee: Eastman Kodak CompanyInventors: Spencer Alan Pugh, Sang Hyung Kim
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Patent number: 5693450Abstract: There is disclosed a silver halide color photographic light-sensitive material having at least one photographic constitutional layer on a support, wherein at least one reducing agent for color formation, which is a specific hydrazine compound, at least one dye-forming coupler, and at least one high-boiling-point organic solvent whose electron-donative parameter .DELTA..nu..sub.D at 25.degree. C. is 80 or more, are contained in at least one of said photographic constitutional layers. The above light-sensitive material enables low replenishment and reduced discharge of a color developer; can form colors favorably even when the coating film's pH is low; and is reduced in stain due to long-term storage of the light-sensitive material or stain after the processing of the light-sensitive material.Type: GrantFiled: May 24, 1996Date of Patent: December 2, 1997Assignee: Fuji Photo Film Co., Ltd.Inventors: Toshiyuki Makuta, Koki Nakamura, Kiyoshi Takeuchi, Hiroo Takizawa
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Patent number: 5691124Abstract: This invention provides color silver halide photographic element comprising a red light-sensitive, cyan dye-forming unit comprising a photosensitive silver halide emulsion layer and an image dye-forming coupler; a green light-sensitive, magenta dye-forming unit comprising a photosensitive silver halide emulsion layer and an image dye-forming coupler; and a blue light-sensitive, yellow dye-forming unit comprising a photosensitive silver halide emulsion layer and an image dye-forming coupler; the photographic element further comprising a first layer and a second layer, the second layer being a layer which provides a site of development for solution physical development; wherein at least one of the dye-forming units comprises two or more emulsion layers spectrally sensitized to the same region of the visible spectrum, but exhibiting different photographic sensitivities and wherein the first layer is positioned adjacent to the layer containing the slowest emulsion of said dye-forming unit and between the layer coType: GrantFiled: December 28, 1995Date of Patent: November 25, 1997Assignee: Eastman Kodak CompanyInventors: Sang Hyung Kim, Spencer Alan Pugh
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Patent number: 5691125Abstract: There is disclosed a silver halide color photographic material having a red-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer, a blue-sensitive silver halide emulsion layer, which comprises a cyan dye-forming coupler represented by formula (I) and (a) a monodisperse silver halide emulsion, (b) non-photosensitive silver halide emulsion wherein the inside or the surface of grains is fogged, (c) a colloidal silver, (d) negative-type interval latent image-type silver halide grains chemically sensitized to a defined depth from the surface, (e) a sensitizing dye containing a sulfonamide group, (f) three separated layers of high, medium, and low sensitivities, (g) two separated layers each having different content of iodine, (h) grains each having a defined spectral sensitivity distribution and a DIR-hydroquinone, or (i) a DIR-hydroquinone: formula (I) ##STR1## wherein R.sup.1 represents a hydrogen atom or a substituent, R.sup.Type: GrantFiled: June 19, 1996Date of Patent: November 25, 1997Assignee: Fuji Photo Film Co., Ltd.Inventors: Takefumi Hara, Kazuyoshi Yamakawa, Sadanobu Shuto, Mitsuru Yamamoto, Makoto Suzuki, Yasuhiro Shimada, Katsuro Nagaoka, Satoshi Nagaoka, Yoshihiko Shibahara, Hideo Ikeda
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Patent number: 5683853Abstract: A silver halide color photographic material is disclosed, which comprises a support having thereon at least one silver halide emulsion layer, wherein the emulsion layer contains at least one silver halide emulsion layer, wherein said emulsion layer contains at least one dye-forming coupler and at least one reducing agent for coloring represented by the following formula (I), and further the film pH of said silver halide color photographic material is 6.5 or less:R.sup.11 --NH--NH--X--R.sup.12 (I)wherein R.sup.11 represents an aryl group, or a heterocyclic group; R.sup.12 represents an alkyl group, an alkenyl group, an alkynyl group, an aryl group or a heterocyclic group; X represents --SO.sub.2 --, --CO--, --COCO--, --CO--O--, --CO--N(R.sup.13)--, --COCO--O--, --COCO--N(R.sup.13)-- or --SO.sub.2 --N(R.sup.13)--; where R.sup.13 represents a hydrogen atom or a group described for R.sup.12.Type: GrantFiled: February 21, 1996Date of Patent: November 4, 1997Assignee: Fuji Photo Film Co., Ltd.Inventors: Toshiyuki Makuta, Koki Nakamura, Kiyoshi Takeuchi
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Patent number: 5674665Abstract: A color negative photographic film wherein on the curve of density versus log E for each color sensitive record: (1) a straight line, which connects the point at density Dmin+0.1 and the point at 1.5log E above the exposure required for density Dmin+0.2, has a mathematical slope .ltoreq. 0.50; and (2) the difference in log E is .gtoreq.1.7 between the point 0.9log E above the exposure required for density Dmin+0.2 and the point where the density difference is 0.1 between the curve and the straight line which results from a linear regression of the three density points at exposures 0.3log E, 0.9log E, and 1.5log E above the exposure required for the density Dmin+0.2; and (3) the difference in log E is .gtoreq.1.20 between the exposure needed for density Dmin+0.1 and the point that corresponds to the exposure, in lux-seconds, of 9.2/(Film Speed). The exposure of the foregoing gray card is a typical normal exposure based on the film speed rating (i.e. the film is not overexposed or underexposed).Type: GrantFiled: November 17, 1995Date of Patent: October 7, 1997Assignee: Eastman Kodak CompanyInventors: John Frank Sawyer, Michael Paul Keyes, John Charles Brewer, John Tyler Keech, Elizabeth Laura Kelly
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Patent number: 5674673Abstract: The invention concerns a color negative process wherein a photographic material comprising silver chloride or silver bromide and a DIR or DIAR coupler is processed in the presence of a polyester comprising intralinear thioether atoms.Type: GrantFiled: August 16, 1995Date of Patent: October 7, 1997Assignee: Eastman Kodak CompanyInventors: Jacques Roussilhe, John Martin Higgins
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Patent number: 5672466Abstract: There is disclosed a silver halide photosensitive material and a method for forming an image, by the use of a color-developing agent of the type of carbonylhydrazone. The color-developing agent has satisfactory storage stability and capability for forming an image.Type: GrantFiled: February 22, 1996Date of Patent: September 30, 1997Assignee: Fuji Photo Film Co., Ltd.Inventors: Hisashi Okamura, Masaki Noro, Kazuhiko Matsumoto, Toshiki Taguchi
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Patent number: 5622817Abstract: A color negative film which contains support, at least one light-sensitive silver halide emulsion layer containing a color coupler and at least one light-insensitive layer adjacent thereto which contains a compound which reacts with the developer oxidation product during development with the splitting off of a radical which increases the sensitivity and which corresponds to formulas I or IIA-B-(T.sub.1).sub.m -(COUP-D)-(T.sub.2).sub.n (I)A-B-(T.sub.1).sub.m D (II).Type: GrantFiled: August 3, 1995Date of Patent: April 22, 1997Assignee: Agfa-Gevaert AG.Inventors: Johannes Willsau, Heinrich Odenwalder
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Patent number: 5609978Abstract: A photographic element, is disclosed which includes a support and at least three silver halide emulsion layers, that records exposure information. The exposure information is recorded in three image-recording units and wherein the spectral sensitivities of said image-recording units are chosen such that the average color error, .DELTA.E*.sub.ab, is less than or equal to 3.1. .DELTA.E*.sub.ab is computed for a specified set of test colors of known spectral reflectance, and the light source is specified as D.sub.65. .DELTA.E*.sub.ab is the average CIE 1976 (L*a*b*) .DELTA.E*.sub.ab between the CIE 1976 (L*a*b*)-space coordinates of said test colors and the CIE 1976 (L*a*b*)-space coordinates corresponding to transformed exposure signals.Type: GrantFiled: June 6, 1995Date of Patent: March 11, 1997Assignee: Eastman Kodak CompanyInventors: Edward J. Giorgianni, Brian E. Mittelstaedt, Jose E. Rivera, Richard A. Simon, Teresa A. Smith, James E. Sutton
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Patent number: 5609999Abstract: A silver halide color photographic material can be formed which exhibits good storage stability and provides excellent sharpness and superior color reproducibility by incorporating therein a dye comprising an indole moiety having a methyl group substituted by an electron-withdrawing group at the 1-position and an acidic nucleus which are connected together via a methine chain. The dye is typically provided in a light-insensitive layer in the form of a solid dispersion. Specific embodiments include the combination of the indole-containing dye with a magenta dye, fogged silver halide grains, a DIR compound or a mercaptoheterocyclic compound.Type: GrantFiled: September 7, 1995Date of Patent: March 11, 1997Assignee: Fuji Photo Film Co., Ltd.Inventors: Shunichi Aida, Keisuke Matsumoto, Toshiyuki Watanabe, Koji Wariishi
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Patent number: 5605786Abstract: A silver halide color photographic light-sensitive material comprising a support having thereon at least one hydrophilic colloid layer, wherein at least one of said hydrophilic colloid layer(s) is a silver halide light-sensitive emulsion layer and wherein at least one of said hydrophilic colloid layer(s) contains a coupler represented by formula (1): ##STR1## wherein R represents a hydrogen atom, an alkyl group, an aryl group, or a heterocyclic group; T represents a divalent linking group bonded to the --O--CO-- group via an atom other than a carbon atom; n represents 0, 1 or 2; and ETA represents a group functioning as an electron transfer agent after cleavage from --O--CO--(T).sub.n.Type: GrantFiled: April 4, 1995Date of Patent: February 25, 1997Assignee: Fuji Photo Film Co., Ltd.Inventors: Naoki Saito, Toshihiro Nishikawa
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Patent number: 5601967Abstract: The invention is generally accomplished by providing an inverted order film in which the lowermost light sensitive layer is a blue-sensitive layer of blue-sensitized tabular grains. The blue-sensitized tabular grains are preferably sensitized to a wavelength of between 450 and 520 nm.Type: GrantFiled: February 19, 1991Date of Patent: February 11, 1997Assignee: Eastman Kodak CompanyInventors: Thomas B. Brust, James T. Kofron
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Patent number: 5582961Abstract: A photographic element, is disclosed which includes a support and at least three silver halide emulsion layers, that records exposure information. The exposure information is recorded in three image-recording units and wherein the spectral sensitivities of said image-recording units are chosen such that the average color error, .DELTA.E*.sub.ab, is less than or equal to 3.1. .DELTA.E*.sub.ab is computed for a specified set of test colors of known spectral reflectance, and the light source is specified as D.sub.65. .DELTA.E*.sub.ab is the average CIE 1976 (L*a*b*) .DELTA.E*.sub.ab between the CIE 1976 (L*a*b*)-space coordinates of said test colors and the CIE 1976 (L*a*b*)-space coordinates corresponding to transformed exposure signals.Type: GrantFiled: June 6, 1995Date of Patent: December 10, 1996Assignee: Eastman Kodak CompanyInventors: Edward J. Giorgianni, Brian E. Mittelstaedt, Richard A. Simon, Teresa A. Smith, James E. Sutton
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Patent number: 5576158Abstract: A color reversal photographic element comprises a support bearing a red-sensitive, cyan dye-forming unit, a green-sensitive, magenta dye-forming unit, and a blue-sensitive, yellow dye-forming unit, each unit comprising a photosensitive silver halide layer and an image-dye forming coupler; the element contains an interimage effect-controlling means which is characterized as having the capability of simultaneously forming a red image of high relative chroma and a yellow-red tint image of substantially lower relative chroma when the element is exposed to a red color standard object having CIELab values for D.sub.55 reference white a*=30.46, b*=19.16, C*=35.98, L*=40.12 and a yellow-red tint color standard object having CIELab values for D.sub.55 reference white a*=17.26, b*=18.01, C*=24.95, L*=66.98; the resulting images have a red reproduction coefficient equal to or greater than 0.88 and a ratio of red reproduction coefficient to yellow-red tint reproduction coefficient equal to or greater than 1.15.Type: GrantFiled: September 26, 1994Date of Patent: November 19, 1996Assignee: Eastman Kodak CompanyInventors: Frederick E. Ford, Arlyce T. Bowne, Carl Kotlarchik, Jr.
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Patent number: 5576128Abstract: A color negative photographic film with at least one color record thereof having a mid-scale contrast less than or equal to 0.45, wherein the mid-scale contrast for the color record is defined as the slope of a straight line connecting a point C and and a point D on the characteristic curve of density versus log Exposure for the color record, where points C and D are located by defining a point A on the characteristic curve at a density level 0.1 above minimum density, a point B is located on the characteristic curve at an exposure value +1.0 Log Exposure beyond point A, and points C and D are located at exposure values -0.45 log Exposure and +0.45 log Exposure with respect to point B, respectively. Use of such a color negative film is particularly advantageous in making telecine transfers.Type: GrantFiled: December 5, 1994Date of Patent: November 19, 1996Assignee: Eastman Kodak CompanyInventors: John T. Keech, John C. Brewer
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Patent number: 5561036Abstract: An improved photographic element comprises a support bearing at least one silver halide emulsion layer having associated therewith a hydroquinone compound that functions as a scavenger for oxidized developing agent. The hydroquinone compound has sufficient bulk that it is substantially non-diffusible in the photographic element and has in the two-position thereof an asymmetric tertiary carbamoyl substituent. These scavenger compounds exhibit very high activity, have excellent stability upon long-term storage and do not leave colored residues after processing.Type: GrantFiled: March 30, 1995Date of Patent: October 1, 1996Assignee: Eastman Kodak CompanyInventors: Stephen P. Singer, Ronald E. Leone
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Patent number: 5561031Abstract: A color reversal photographic element having a light sensitive silver halide emulsion layer, and a second layer containing a light insensitive silver halide emulsion. The element additionally has a bleach accelerating releasing compound in the second layer or in a layer associated therewith. A method of processing such elements is also provided.Type: GrantFiled: March 23, 1995Date of Patent: October 1, 1996Assignee: Eastman Kodak CompanyInventor: Arlyce T. Bowne
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Patent number: 5561035Abstract: An improved photographic element comprises a support bearing at least one silver halide emulsion layer having associated therewith a pyrocatechol compound that functions as a scavenger for oxidized developing agent. The pyrocatechol compound has sufficient bulk that it is substantially non-diffusible in the photographic element and has in the four-position thereof a tertiary carbamoyl substituent. These scavenger compounds exhibit very high activity, have excellent stability upon long-term storage and do not leave colored residues after processing.Type: GrantFiled: February 15, 1995Date of Patent: October 1, 1996Assignee: Eastman Kodak CompanyInventors: Stephen P. Singer, Ronald E. Leone
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Patent number: 5550014Abstract: A silver halide photographic emulsion contains tabular silver halide grains which have an aspect ratio of 2 or more and in which dislocations are concentrated about the corner of the grain.Type: GrantFiled: March 17, 1995Date of Patent: August 27, 1996Assignee: Fuji Photo Film Co., Ltd.Inventors: Yoichi Maruyama, Mikio Ihama