Substituted At Coupling Position With Other Than Hydrogen Patents (Class 430/557)
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Patent number: 4650748Abstract: A heat-developable color photo-sensitive material having a support. On the support, there is a photographic component layer containing at least a photo-sensitive silver halide, a reducing agent, a binder and a dye-providing material. At least one of the dye-providing materials in the photo-sensitive material is a polymer having a unit derived from a monomer represented by Formula I.Type: GrantFiled: December 23, 1985Date of Patent: March 17, 1987Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Tawara Komamura, Hidenobu Ohya
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Patent number: 4628024Abstract: A silver halide color photographic light-sensitive material comprising a support having thereon a silver halide emulsion layer and a compound represented by the following general formula (I): ##STR1## wherein COUP represents a coupler residue capable of being subjected to a coupling reaction with an oxidation product of an aromatic primary amine developing agent; TIME represents a timing group which is released upon the coupling reaction and subsequently releases ##STR2## Z represents a monocyclic or condensed heterocyclic ring consisting of a nitrogen atom and a carbon atom; L represents a divalent linking group; R.sup.1 represents a hydrogen atom or an alkoxycarbonyl group; R.sup.2 represents a hydrogen atom, an alkyl group, an aryl group, a heterocyclic group, an acyl group, a sulfonyl group, an alkoxycarbonyl group, a carbamoyl group, a sulfamoyl group, a thioacyl group or a thiocarbamoyl group; R.sup.3 represents a hydrogen atom; R.sup.2 and R.sup.Type: GrantFiled: January 9, 1986Date of Patent: December 9, 1986Assignee: Fuji Photo Film Co., Ltd.Inventors: Hidetoshi Kobayashi, Keiji Mihayashi, Isamu Itoh
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Patent number: 4618571Abstract: A silver halide color photographic light-sensitive material comprising a support having thereon at least one silver halide emulsion layer, the color photographic light-sensitive material containing a coupler which releases a compound after the coupling reaction with the oxidation product of a developing agent, the released compound being capable of releasing further a photographically useful group by an oxidation-reduction reaction with the oxidation product of another developing agent. The compound used in the present invention is chemically stable and can release a photographically useful group under control; therefore the silver halide color photographic light-sensitive material containing the compound has good stability during storage and high sensitivity and provides a color image having good image qualities such as sharpness, graininess, color reproducibility, etc.Type: GrantFiled: February 25, 1985Date of Patent: October 21, 1986Assignee: Fuji Photo Film Co., Ltd.Inventors: Seiji Ichijima, Hideo Usui, Naoyasu Deguchi
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Patent number: 4618572Abstract: A silver halide photographic light-sensitive material is disclosed, comprising a support having provided thereon at least one silver halide emulsion layer and containing, in a silver halide emulsion layer having an average iodide content of about 8 mol % or more, a compound capable of releasing a fogging agent or a precursor thereof, or of releasing a development accelerator or a precursor thereof upon development in proportion to the amount of developed silver.Type: GrantFiled: December 12, 1984Date of Patent: October 21, 1986Assignee: Fuji Photo Film Co., Ltd.Inventors: Keiji Mihayashi, Hidetoshi Kobayashi, Shunji Takada
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Patent number: 4617256Abstract: Yellow Couplers of the formula ##STR1## wherein Y represents an aliphatic or cycloaliphatic radical;X represents hydrogen or a separable group;R.sup.1 represents an alkyl radical having from 12 to 20 carbon atoms; andR.sup.2 represents an alkyl radical having from 1 to 4 carbon atoms,can be well dissolved in oil formers and also couple in the absence of benzyl alcohol with a high color yield. They are stable against heat and moisture and give rise to stable yellow dyes in color development.Type: GrantFiled: November 4, 1985Date of Patent: October 14, 1986Assignee: Agfa Gevaert AktiengesellschaftInventors: Friedrich-Wilhelm Kunitz, Karl-Wilhelm Schranz
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Patent number: 4614709Abstract: A silver halide photographic light-sensitive material having a support with at least one silver halide emulsion layer is provided. The silver halide emulsion layer containing in combination at least one yellow dye image-forming coupler of Formula I and at least one high-boiling organic solvent of Formula II to reduce the light discoloration of a yellow dye image.Type: GrantFiled: December 20, 1983Date of Patent: September 30, 1986Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Masao Sasaki, Kaoru Onodera
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Patent number: 4610957Abstract: A heat-developable light-sensitive material comprising a support having thereon at least one light-sensitive silver halide emulsion and an acid precursor having a structural moiety represented by the following formula (I) bonded to carbon atoms: ##STR1## The acid precursor is extremely stable at room temperature but when it is heated above a certain temperature, and the development proceeds to the desired appropriate condition, it releases an acid to neutralize a base, whereby the development is stopped. A heat-developable light-sensitive material containing the acid precursor provides color images having a high S/N ratio and a high image density.Type: GrantFiled: April 26, 1985Date of Patent: September 9, 1986Assignee: Fuji Photo Film Co., Ltd.Inventors: Masatoshi Kato, Hiroshi Kitaguchi
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Patent number: 4607002Abstract: A silver halide color photographic light-sensitive material comprising a reflective support bearing thereon a green light-sensitive silver halide emulsion layer containing a t-alkyl 1H-pyrazolo[3,2-C]-5-triazole magenta forming coupler represented by Formula (I) defined in the specification: a blue light-sensitive silver halide emulsion layer containing a t-butyl acylacetamide yellow-forming coupler represented by Formula (II) defined in the specification and a red light-sensitive silver halide emulsion layer containing a phenolic cyan-forming coupler represented by Formula (III) or (IV) defined in the specification.Type: GrantFiled: November 14, 1985Date of Patent: August 19, 1986Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Noritaka Nakayama, Satoshi Kawakatsu, Katsunori Katoh, Kaoru Shinozaki
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Patent number: 4594313Abstract: A color image forming process which comprises developing a silver halide photographic material using an aromatic primary amine developing agent in the presence of a blocked magenta image forming coupler represented by the following general formula (I): ##STR1## wherein R represents a hydrogen atom or a substituent; X represents a hydrogen atom, a halogen atom, a carboxy group or a coupling releasable group; Cp represents a coupling block group capable of forming a colorless or alkali-soluble product by reaction with the oxidation product of a color developing agent; A represents ##STR2## when Cp is bonded and --N.dbd. when Cp is not bonded; B and E each represents ##STR3## when Cp is bonded and --N.dbd. or ##STR4## when Cp is not bonded; D represents --N.dbd.Type: GrantFiled: March 12, 1985Date of Patent: June 10, 1986Assignee: Fuji Photo Film Co., Ltd.Inventors: Nobuo Furutachi, Yoshinobu Yoshida
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Patent number: 4590152Abstract: A heat-developable color light-sensitive material comprising a support having thereon at least: (1) a light-sensitive silver-halide, (2) a coupler capable of coupling with an oxidation product of a developing agent, (3) a hydrophilic binder, and (4) at least one compound represented by the following general formula (Z): ##STR1## the substituents A, R.sub.1, R.sub.2 R.sub.3, R.sub.4, X and R.sub.5 are defined herein.The heat-developable color light-sensitive material containing the developing agent or the precursor thereof represented by the general formula (Z) which is excellent in stability during storage, silver developing property and coupling property has good preservability and can provide color images having a high S/N ratio and a high image density.Type: GrantFiled: July 8, 1985Date of Patent: May 20, 1986Assignee: Fuji Photo Film Co., Ltd.Inventors: Kozo Sato, Hideki Naito
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Patent number: 4587207Abstract: A color image-forming process is described, comprising developing an exposed silver halide light-sensitive material with an aromatic primary amine color developing agent in the presence of an .alpha.-acyl-.alpha.-unsubstituted or substituted phenoxyacetanilide type yellow coupler having a sulfamoyl group in an m-position of the acetanilido group with respect to the amino group.Type: GrantFiled: September 26, 1984Date of Patent: May 6, 1986Assignee: Fuji Photo Film Co., Ltd.Inventors: Momotoshi Tsuda, Jun Arakawa
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Patent number: 4585731Abstract: A silver halide color photographic light-sensitive material is disclosed, comprising a support having thereon at least one silver halide emulsion layer, wherein at least one silver halide emulsion layer contains a coupler which is subjected to a coupling reaction with an oxidation product of a color developing agent to produce a diffusible coupling product which exerts a fogging effect in a developing solution; the silver halide color photographic light-sensitive material provides increased contrast and sensitivity, development is accelerated, and stability during storage is improved.Type: GrantFiled: August 10, 1984Date of Patent: April 29, 1986Assignee: Fuji Photo Film Co., Ltd.Inventors: Hidetoshi Kobayashi, Keiji Mihayashi
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Patent number: 4581324Abstract: Colored, reflection-viewed images having improved stability to light, heat and moisture and improved storage stability while retaining the original color character thereof are produced using color photographic recording materials containing, on a light-reflecting layer support, a red-sensitive, a green-sensitive and a blue-sensitive silver halide emulsion layer, each with spectrally associated color coupler, the yellow coupler being a 2-equivalent yellow coupler derived from pivaloyl acetanilide, the magenta coupler a 3-anilinopyrazolone coupler and the cyan coupler a coupler corresponding to the following general formula (I): ##STR1## wherein R.sup.1 represents H or halogen;R.sup.2 represents alkyl having at least 2 carbon atoms;R.sup.3 represents H or alkyl having up to 5 carbon atoms;R.sup.4 represents acyl; andX.sup.1 represents H or a group releasable in the process of color coupling.Type: GrantFiled: October 29, 1984Date of Patent: April 8, 1986Assignee: Agfa-Gevaert AktiengesellschaftInventors: Erich Wolff, Gunter Renner, Friedrich-Wilhelm Kunitz
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Patent number: 4579816Abstract: Yellow DIR couplers corresponding to formula I below are capable of producing remarkably powerful inhibitory effects on remote layers while their action on the layer containing them is comparatively slight: ##STR1## In the above formula, R.sup.1 represents straight-chained or branched alkyl, optionally substituted aryl or --NR.sup.5 R.sup.6,R.sup.2, R.sup.5 represent H or alkyl with 1 or 2 carbon atoms,R.sup.3, R.sup.6 represent alkyl with 1 to 18 carbon atoms or optionally substituted aryl,R.sup.4 represents alkyl with 5 to 12 carbon atoms, andFu represents a substituted or unsubstituted furyl group.Type: GrantFiled: July 15, 1985Date of Patent: April 1, 1986Assignee: Agfa-Gevaert AktiengesellschaftInventors: Hans Ohlschlager, Ulrich Griesel, Heinrich Odenwalder
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Patent number: 4578346Abstract: A silver halide color photographic light-sensitive material is disclosed. The material is comprised of a support having two layers thereon. One layer is comprised of a silver halide emulsion layer containing a non-diffusible coupler which couples with an oxidation product of a developing agent during development processing to form a dye of such mobility that controlled image smearing occurs. The other layer is comprised of a silver halide emulsion layer containing a polymer coupler latex which is adjacent to the emulsion layer containing the dye diffusion type coupler. By utilizing the silver halide color photographic light-sensitive material as disclosed within the application it is possible to obtain improved results with respect to the graininess and sharpness of the images produced with the material without having bad effects on other photographic properties of the material.Type: GrantFiled: January 30, 1985Date of Patent: March 25, 1986Assignee: Fuji Photo Film Co., Ltd.Inventors: Toshiyuki Watanabe, Morio Yagihara, Keiichi Adachi
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Patent number: 4576909Abstract: A silver halide color photographic light-sensitive material comprising a support having at least one silver halide emulsion layer in which there is provided a polymer coupler and a compound of the formulaAr--O--RO).sub.p H [I]wherein Ar is an aryl group, R is an alkylene group, and p is an integer from to 1 to 3.Type: GrantFiled: October 4, 1984Date of Patent: March 18, 1986Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Sohei Goto, Ken Okauchi
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Patent number: 4567135Abstract: A silver halide color photographic light-sensitive material is disclosed. The material is comprised of a support base having thereon a silver halide emulsion layer and two distinct types of couplers. One coupler is a diffusing dye-forming coupler which can form a dye capable of having moderate diffusibility in an emulsion layer through coupling with an oxidation product of a color developing agent. The other coupler is a high reaction rate coupler which can form a dye of the same color as that of the diffusing dye-forming coupler and that, has a coupling speed higher than that of the diffusing dye-forming coupler by a factor of 1.3 to 15. By utilizing the two types of couplers in combination with each other the resulting material can provide images with improved graininess over the entire density region of the dye image.Type: GrantFiled: January 19, 1984Date of Patent: January 28, 1986Assignee: Fuji Photo Film Co., Ltd.Inventors: Jun Arakawa, Toshiyuki Watanabe
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Patent number: 4565777Abstract: A silver halide color photographic light-sensitive material is described, comprising a coupler represented by formula (I): ##STR1## wherein A represents the residue of a coupler, R.sub.1 represents an alkyl group having from 4 to 15 carbon atoms, R.sub.2 represents an alkyl group having from 1 to 20 carbon atoms, with the total number of carbon atoms of R.sub.1 and R.sub.2 being from 8 to 27.Type: GrantFiled: July 20, 1984Date of Patent: January 21, 1986Assignee: Fuji Photo Film Co., Ltd.Inventors: Akira Ogawa, Kozo Aoki, Osami Tanabe, Makoto Umemoto
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Patent number: 4546073Abstract: Precursor compounds from which photographically-active compounds are released with a time delay correspond to the following general formula ##STR1## wherein A represents the residue of a compound which undergoes oxidative coupling;X represents --O--, --S-- or --NR.sup.1 --;Y represents a releasable group which may consist of or contain the residue of a photographically-active compound; andR represents a group for controlling the kinetics of release.Advantageous pictorial properties (inter-image effect, edge effect, modulation transfer function) are obtained with compounds according to the present invention if the photographically-active residue is the residue of a development inhibitor.Type: GrantFiled: May 16, 1984Date of Patent: October 8, 1985Assignee: Agfa-Gevaert AktiengesellschaftInventors: Peter Bergthaller, Heinrich Odenwalder, Reinhard Matejec
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Patent number: 4543323Abstract: There is disclosed a light-sensitive silver halide photographic material having at least one light-sensitive layer constituted of a plural number of silver halide emulsions provided on a support, and a non-light-sensitive intermediate layer containing a diffusion resistant coupler capable of forming a migratable color forming dye or a compound capable of forming a flow-out type coupling product provided at least adjacent to the silver halide emulsion layer with the highest light sensitivity among the plural number of silver halide emulsion layers on its support side.The light-sensitive material according to this invention exhibits excellent photographic characteristics such as sensitivity, graininess, sharpness, storability and gradation.Type: GrantFiled: December 12, 1983Date of Patent: September 24, 1985Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Toshifumi Iijima, Satoshi Nakagawa, Hiroshi Menjo
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Patent number: 4540658Abstract: A silver halide color photographic product with dye images having improved fastness to light is disclosed. The product has at least one dye image forming layer on a support and further includes at least one of the compounds of formula (I) or (II) in said dye image forming layer and/or an adjoining or an adjacent layer: ##STR1## wherein R is an alkyl group, an aryl group or a heterocyclic group; X is an alkylene group; and Y is an alkylene or arylene group; and ##STR2## wherein R.sub.1 is a hydrogen atom, an alkyl group or an aryl group; R.sub.2 and R.sub.3 are each an alkyl group; Y.sub.1 is an alkylene or arylene group; Z is an oxygen atom, a sulfur atom, a sulfonyl group, a carbonyl group or an alkylene group; and n is an integer of 1 to 20.Type: GrantFiled: June 24, 1983Date of Patent: September 10, 1985Assignee: Konishiroku Photo Industry Co. Ltd.Inventors: Masao Sasaki, Kaoru Onodera
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Patent number: 4537857Abstract: A silver halide light-sensitive material having a support and at least one silver halide emulsion is provided. The silver halide emulsion layer contains in combination at least one cyan coupler of Formula (I) and at least one cyan coupler of Formula (II).Type: GrantFiled: November 29, 1983Date of Patent: August 27, 1985Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Shun Takada, Kaoru Onodera, Takashi Kadowaki
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Patent number: 4536472Abstract: A silver halide color photographic light-sensitive material comprising a support having thereon a blue-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer and a red-sensitive silver halide emulsion layer, at least one of these silver halide emulsion layers containing a non-diffusible coupler which forms a properly smearing diffusible dye upon reaction with the oxidation product of a color developing agent together with a monodispersed silver halide emulsion. The silver halide color photographic light-sensitive material provides color images having not only an improved RMS granularity but also an improved visual sensation of graininess.Type: GrantFiled: January 19, 1984Date of Patent: August 20, 1985Assignee: Fuji Photo Film Co., Ltd.Inventors: Hirohiko Kato, Seiji Ichijima, Keiichi Adachi, Toshiyuki Watanabe
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Patent number: 4533625Abstract: A color photographic light-sensitive material which contains a photographic coupler having a naphthalene nucleus in the bonding position other than the coupling position, wherein the naphthalene nucleus contains at least one hydroxyl group and at least one sulfonyl group as a substituent or contains at least one hydroxyl group and at least one sulfinyl group as a substituent is disclosed.Type: GrantFiled: March 26, 1984Date of Patent: August 6, 1985Assignee: Fuji Photo Film Co., Ltd.Inventors: Seiji Ichijima, Takeshi Hirose
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Patent number: 4529691Abstract: Yellow couplers corresponding to the formula ##STR1## wherein Y represents an aromatic, aliphatic or cycloaliphatic group,X represents hydrogen or a releasable group,R.sup.1 represents halogen, andR.sup.2 and R.sup.3 each represent an alkyl group having 1 to 20 carbon atoms,are readily soluble in oil formers and undergo coupling with a high color yield. They are resistant to heat and moisture and undergo color development to yield stable yellow dyes with an absorption maximum below 450 nm. They have a high absorption capacity in the near UV region and are virtually unaffected by fluctuations in the pH during processing.Type: GrantFiled: April 4, 1984Date of Patent: July 16, 1985Assignee: Agfa-Gevaert AGInventors: Gunter Renner, Erich Wolff, Friedhelm Sommer, Herbert Stark, Dieter Stieler, Egon Meier
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Patent number: 4526861Abstract: A silver halide color photographic light-sensitive material comprising a support having thereon at least one silver halide emulsion layer, the color photographic light-sensitive material containing a coupler having a group represented by the general formula (I) ##STR1## wherein W represents ##STR2## represents an organic residue necessary for forming a 5-membered or 6-membered nitrogen-containing heterocyclic ring or a condensed ring thereof together with W; Y represents an organic residue connecting Z and X and containing at least one carbon atom which is bonded to Z; Z represents an oxygen atom or a sulfur atom; and n represents an integer of 1 to 2; at the coupling position of the coupler and a method of forming a color image using the silver halide color photographic light-sensitive material.Type: GrantFiled: March 27, 1984Date of Patent: July 2, 1985Assignee: Fuji Photo Film Co., Ltd.Inventors: Seiji Ichijima, Takeshi Hirose
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Patent number: 4526863Abstract: A silver halide photographic light-sensitive material comprising a support having thereon at least two light-sensitive silver halide emulsion layers which are sensitive to light of substantially the same spectral region and a relatively light-insensitive layer containing silver halide, zinc oxide or titanium oxide positioned between the two light-sensitive silver halide emulsion layers and at least one of the two light-sensitive silver halide emulsion layers containing a compound represented by the following general formula (I):A--B (I)wherein A represents a residue of a compound capable of coupling with the oxidation product of an aromatic primary amine developing agent by removal of a hydrogen atom from the active position of the compound, and B represents a group which is released on coupling and exhibits a fogging function in a developing solution.Type: GrantFiled: March 21, 1984Date of Patent: July 2, 1985Assignee: Fuji Photo Film Co., Ltd.Inventors: Keiji Mihayashi, Shunji Takada, Hidetoshi Kobayashi
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Patent number: 4525450Abstract: A silver halide color photographic light-sensitive material containing a coupler having at least one of a sulfamoylphenylenesulfonyl group, a sulfamoylaminophenylenesulfonyl group and a sulfonamidophenylenesulfonyl group as a substituent. Preferred couplers are represented by the formula: ##STR1## wherein all moieties are defined in the specification wherein Cp is a coupler residue, L is a divalent linking group and X represents --NHSO.sub.2 --, ##STR2## or --SO.sub.2 NH, and n represents 0-4. Groups R.sup.1, R.sup.2 and R.sup.3 are defined in the specification.Type: GrantFiled: March 23, 1984Date of Patent: June 25, 1985Inventors: Isamu Itoh, Takeshi Hirose
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Patent number: 4524132Abstract: A color photographic silver halide light-sensitive material is described, comprising a support base having thereon a silver halide emulsion layer wherein said material contains at least one coupler represented by formula (I) ##STR1## wherein A represents a yellow coupler residue, a magenta coupler residue, or a cyan coupler residue; R.sub.1 represents a substituted or unsubstituted acyclic or cyclic alkylene group; R.sub.2 represents a halogen atom, a hydroxyl group, a cyano group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted acylamino group, a substituted or unsubstituted sulfonamido group or a substituted or unsubstituted acyl group; and n represents an integer of 0 to 3.Type: GrantFiled: September 6, 1984Date of Patent: June 18, 1985Assignee: Fuji Photo Film Co., Ltd.Inventors: Kozo Aoki, Makoto Umemoto, Akira Ogawa
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Patent number: 4524130Abstract: A silver halide color photographic light-sensitive material is disclosed. The material is comprised of a support base having a plurality of silver halide emulsion layers positioned thereon. The material includes at least one silver halide emulsion layer having a particular sensitivity and color sensitivity, and a second silver halide emulsion layer having the same color sensitivity but having a greater sensitivity with respect to light, the second layer including a silver halide having a silver iodide content in the range of 9% by mol to 15% by mol. The material includes a DIR compound in a layer other than the second silver halide emulsion layer. The DIR compound releases a diffusible development inhibitor or precursor thereof by a coupling reaction. The resulting material has greatly improved granularity and sharpness.Type: GrantFiled: January 19, 1984Date of Patent: June 18, 1985Assignee: Fuji Photo Film Co., Ltd.Inventors: Yasuo Iwasa, Shingo Ishimaru
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Patent number: 4518682Abstract: A silver halide photographic light-sensitive material is disclosed. The material has improved sensitivity and granularity as well as an increased gradient. Further, the material can be processed by rapid processing methods. The material is comprised of a support having positioned thereon a light-sensitive silver halide emulsion layer and a compound represented by the general formula (I):A-B (I)wherein A is residue of a compound capable of undergoing a coupling reaction with an oxidized primary amine developer, the residue being derived by eliminating a hydrogen atom from an active position of the compound. B is a group capable of being released through a coupling reaction to exert a fogging effect.Type: GrantFiled: September 15, 1983Date of Patent: May 21, 1985Assignee: Fuji Photo Film Co., Ltd.Inventors: Hidetoshi Kobayashi, Toshiro Takahashi, Shigeo Hirano, Takeshi Hirose, Keiichi Adachi
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Patent number: 4511649Abstract: A silver halide color photographic light-sensitive material comprising a support having thereon at least one silver halide emulsion layer is described, the color photographic light-sensitive material containing a coupler having at the coupling position thereof a group represented by formula (I) ##STR1## wherein Z represents an oxygen atom or a sulfur atom; R.sub.1 and R.sub.2 each represents a halogen atom, an alkyl group, an aryl group, an aralkyl group, an alkoxy group, an aryloxy group, a cyano group, a nitro group, a hydroxy group, a carboxy group, an alkoxycarbonyl group, an aryloxycarbonyl group, an alkylsulfonamido group, an arylsulfonamido group, an alkylsulfamoyl group, an arylsulfamoyl group, an acylamino group, an amino group, an alkylcarbamoyl group, an arylcarbamoyl group, an alkylsulfonyl group, an arylsulfonyl group, an alkylcarbonyl group or an arylcarbonyl group; X.sub.Type: GrantFiled: May 21, 1984Date of Patent: April 16, 1985Assignee: Fuji Photo Film Co., Ltd.Inventors: Akira Ogawa, Momotoshi Tsuda
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Patent number: 4510234Abstract: A silver halide photographic emulsion, which comprises (i) a mono-dispersed silver halide emulsion comprising 3 to 50 mole % of silver chloride, 1 mole % or less of silver iodide and 50 to 97 mole % of silver bromide having a grain size distribution of 0.Type: GrantFiled: September 7, 1983Date of Patent: April 9, 1985Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Syoji Matsuzaka, Makoto Kajiwara, Masanobu Miyoshi, Kiyoshi Yamashita
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Patent number: 4504568Abstract: A dye-forming photothermographic element comprises in a binder, in reactive association,(a) photographic silver halide,(b) an image forming combination comprising(i) a reducible organic silver salt with(ii) a reducing agent selected from the group consisting of p-phenylenediamine, p-aminophenol, sulfonamidophenol, sulfonamidoaniline and hydrazone developing agents, and(c) a coupler which is capable of forming an image dye by reaction with the oxidized form of the reducing agent.In such a photothermographic element improvements are provided wherein the coupler has attached to the carbon atom at the coupling position either (A) a group --S--Dye, wherein Dye represents an image dye, or a blocked or shifted form thereof, and any necessary linking group, or (B) a moiety --S--Z, wherein Z represents atoms linking the sulfur atom to another position in the coupler. The exposed dye-forming photothermographic element is capable of forming a dye image by merely heating the element.Type: GrantFiled: February 2, 1984Date of Patent: March 12, 1985Assignee: Eastman Kodak CompanyInventors: Bernard A. Clark, Michael J. Simons, Colin Holstead
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Patent number: 4503141Abstract: A silver halide color photographic light-sensitive material containing at least one coupler having a ballast group represented by the following general formula (I): ##STR1## wherein ##STR2## represents a substituted or unsubstituted aromatic heterocyclic ring, and m represents an integer of 1 or 2.Type: GrantFiled: March 23, 1984Date of Patent: March 5, 1985Assignee: Fuji Photo Film Co., Ltd.Inventors: Nobuo Furutachi, Takeshi Hirose
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Patent number: 4500634Abstract: A silver halide color photographic material in which both a coupler capable of releasing a diffusible development restrainer by coupling and a polymer coupler latex are present to increase visual sharpness.Type: GrantFiled: August 24, 1983Date of Patent: February 19, 1985Assignee: Fuji Photo Film Co., Ltd.Inventors: Kei Sakanoue, Morio Yagihara, Seigi Ichijima, Kimitoshi Nagao
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Patent number: 4489155Abstract: In a silver halide color photographic material is disclosed. The material is comprised of a blue-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer, and a red-sensitive silver halide emulsion layer. The granularity of the material is improved by incorporating a non-diffusible coupler capable of forming a properly smearing diffusible dye by causing a reaction with the oxidation product of a color developing agent and a colorless competing compound capable of capturing the oxidation product of a color developing agent in at least one of the foregoing silver halide emulsion layers.Type: GrantFiled: July 5, 1983Date of Patent: December 18, 1984Assignee: Fuji Photo Film Co., Ltd.Inventors: Kei Sakanoue, Shigeo Hirano, Keiichi Adachi
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Patent number: 4480028Abstract: Silver halide photographic material having at least one light sensitive silver halide emulsion layer, at least one non-light sensitive hydrophilic colloidal layer, and optionally a third type of layer, wherein at least one of said emulsion layers, colloid layers, or third type of layers has, in a single layer, both a magenta coupler of Formula I and a development inhibitor releasing compound having a development inhibitor radical of Formula II or III, said Formula is wherein R.sub.1 is selected from benzamido, anilino, and phenylureido, each having a sulfonamido group and R.sub.2 is selected from aryl and heterocyclic groups; said Formula II is ##STR1## wherein R.sub.3 is selected from hydrogen, halogen, acylamino, alkyl, benzothiazolinylidenamino and phenyl substituted alkoxy; said Formula III is ##STR2## wherein X is a group of non-metallic atoms necessary to complete, together with the C.dbd.N group, a five or six membered heterocyclic ring.Type: GrantFiled: January 28, 1983Date of Patent: October 30, 1984Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Kazuo Kato, Yoshikazu Watanabe, Kenji Kumashiro, Satoru Shimba
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Patent number: 4477560Abstract: There is disclosed a light-sensitive silver halide color photographic material, comprising a group of silver halide emulsion layers constituting the same color sensitive layer, said group of emulsion layers consisting of at least two silver halide emulsion layers with different light sensitivities, the layer with the highest sensitivity incorporating at least one kind of a compound having a non-diffusion type coupler component and a scavenger component for an oxidized product of a color forming developing agent in an amount of 1 to 5 mole % per mole of the silver halide in the layer containing said compound.The light-sensitive silver halide color photographic material according to the present invention has high sensitivity and can provide high image quality with a broad latitude.Type: GrantFiled: December 13, 1982Date of Patent: October 16, 1984Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Takeo Koitabashi, Kiyoshi Yamashita, Toshifumi Iijima
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Patent number: 4477563Abstract: A silver halide color photographic light-sensitive material is described comprising a support having thereon a silver halide emulsion layer containing a coupler having, at the coupling active position, a group which provides a compound having a development inhibiting property when the group is released from the coupling device position of the coupler upon the color development reaction and which is decomposed to a compound which does not substantially influence the photographic properties when the compound diffuses into a color developing solution.The silver halide color photographic light-sensitive material containing a novel class of development inhibitor releasing couplers provides color images of good sharpness and improved color reproduction without causing contamination of the processing solution.Type: GrantFiled: August 25, 1983Date of Patent: October 16, 1984Assignee: Fuji Photo Film Co., Ltd.Inventors: Seiji Ichijima, Kei Sakanoue, Hidetoshi Kobayashi, Keiichi Adachi
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Patent number: 4476219Abstract: A silver halide color photographic material which is improved in granularity by containing both a gallic acid amide derivative represented by the following general formula (I) and a high speed reaction type coupler: ##STR1## wherein R.sup.1 and R.sup.2 each represents a hydrogen atom, a substituted or an unsubstituted aliphatic group, a substituted or an unsubstituted aromatic group, or a substituted or an unsubstituted heterocyclic group, and they may be the same group provided that they are not simultaneously hydrogen atoms, and, further, they may combine with each other to form a ring.Type: GrantFiled: March 11, 1983Date of Patent: October 9, 1984Assignee: Fuji Photo Film Co., Ltd.Inventors: Kei Sakanoue, Shigeo Hirano, Takehiko Ueda, Keiichi Adachi
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Patent number: 4469773Abstract: A coupler containing in the coupling position a carbamoyloxy group ##STR1## upon oxidative coupling, releases a carbamic acid fragment that, in turn, is capable of thermally releasing ammonia or an amine. Such a carbamoyloxy substituted coupler and carbamic acid fragment are useful in imaging such as in photothermography and thermography. Ammonia or an amine released from the carbamic acid fragment enables imaging in imaging materials that are responsive to ammonia or an amine. The carbamoyloxy substituted coupler also generally is a dye-forming coupler that reacts with the oxidized form of a color developing agent to form a dye. An image is produced in an exposed photothermographic material comprising the carbamoyloxy substituted coupler by thermal development. An image is produced in a thermographic material comprising the carbamoyloxy substituted coupler and a color developing agent by imagewise heating the thermographic material.Type: GrantFiled: June 15, 1983Date of Patent: September 4, 1984Assignee: Eastman Kodak CompanyInventors: Anthony Adin, Csaba A. Kovacs, Delwyn E. Machiele
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Patent number: 4458011Abstract: The present invention relates to compounds of the type comprising a ballasting group which renders said compounds substantially fast to diffusion in hydrophilic colloid media and at least one photographically useful group which is chemically linked to said ballasting group, and to photographic elements containing at least one compound of the type referred to.The ballasting groups in the compounds according to the present invention are derived from mono- or di-esters or -ethers of glycerol. The linkage between ballasting group and photographically useful group can be realized via acid chlorides which are derived from the above-said glycerol derivatives.Type: GrantFiled: October 29, 1982Date of Patent: July 3, 1984Assignee: AGFA-Gevaert, N.V.Inventors: Christian C. Van de Sande, Jan J. Vandewalle, Marcel J. Monbaliu, Raphael K. Van Poucke
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Patent number: 4456681Abstract: A color photographic material comprising on a support a first silver halide emulsion layer containing a yellow coupler, a second silver halide emulsion layer containing a magenta coupler, a third silver halide emulsion layer containing a cyan coupler, said third emulsion layer being positioned farthest from the support, a first non-light-sensitive layer formed on one side of said third emulsion layer opposite to the support, and a second non-light-sensitive layer formed on the other side of said third emulsion layer, at least said first non-light sensitive layer containing a UV absorber.Type: GrantFiled: May 27, 1983Date of Patent: June 26, 1984Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Takashi Kadowaki, Kaoru Onodera
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Patent number: 4444870Abstract: A silver halide color photographic light-sensitive material comprising a support having thereon a layer containing at least one copolymer coupler latex having a layered structure capable of forming a dye upon coupling with an oxidation product of an aromatic primary amine developing agent. The polymer coupler latex having a layered structure has an exceptionally good color forming property and is capable of forming a dye with a high yield and without the formation of undesired stains and fogs. The silver halide color photographic light-sensitive material containing the polymer coupler latex has good film strength and a reduced layer thickness and provides a color image having an improved sharpness. A method of forming a color image using the silver halide color photographic light-sensitive material is also disclosed.Type: GrantFiled: September 7, 1982Date of Patent: April 24, 1984Assignee: Fuji Photo Film Co., Ltd.Inventors: Tsumoru Hirano, Keiji Mihayashi, Morio Yagihara
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Patent number: 4443536Abstract: Photographic couplers comprising a coupler moiety and a ballast moiety have advantageous properties when the ballast moiety is terminated with a hydroxyphenylsulfonyl or hydroxyphenylsulfinyl group. The couplers are useful in photographic emulsions and element.Type: GrantFiled: April 8, 1982Date of Patent: April 17, 1984Assignee: Eastman Kodak CompanyInventor: Gregory J. Lestina
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Patent number: 4438193Abstract: There is disclosed a novel silver halide photosensitive color photographic material comprising a coupler which consists of a coupling component (A) which is capable of causing a coupling reaction with an oxidized color developing agent and a substituent component bonded at the coupling position of said coupling component (A), which substituent component is capable of being split off on coupling reaction, the improvement characterized in that said substituent comprises a coupling component (B) which can undergo coupling reaction with an oxidized color developing agent when released from said coupling component (A) and a photographically useful component which is capable of being released on coupling reaction of said coupling component (B).The color photographic material according to the present invention provides graininess, sharpness and color reproducibility which is sufficiently competent to the requirement of further miniturization of film size by use of a coupler having novel functions.Type: GrantFiled: December 21, 1981Date of Patent: March 20, 1984Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Morito Uemura, Kenichi Kishi, Satoshi Nakagawa, Shuji Kida
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Patent number: 4421845Abstract: A silver halide photographic light-sensitive material which comprises at least one of those pyrazole compounds represented by the following general formula: ##STR1## wherein A is a group which can be eliminated in a photographic process condition; X is ##STR2## wherein R.sub.5 is a hydrogen atom or an alkyl, an aryl, an acyl or a sulfone group, which R.sub.5 group may combine together with R.sub.1 to form a condensed ring; R.sub.1 is a hydrogen atom or an alkyl, an aryl, an acyl, a sulfone, an alkoxy, or a heterocyclic residue; R.sub.2 is a hydrogen atom or an alkyl, an aryl, an alkoxy, an amino, an acid amide, a sulfonamide, a carboxyl, an alkoxycarbonyl, a carbamoyl, a cyano, or a halogenated alkyl group, R.sub.3 and R.sub.Type: GrantFiled: March 11, 1982Date of Patent: December 20, 1983Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Morito Uemura, Kenichi Kishi, Satoshi Nakagawa, Shuji Kida, Hiroshi Sugita
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Patent number: 4420556Abstract: Granularity of silver halide photographic materials is reduced by employing a coupler which yields a dye of such mobility that controlled image smearing occurs.Type: GrantFiled: September 10, 1981Date of Patent: December 13, 1983Assignee: Eastman Kodak CompanyInventors: Robert E. Booms, Colin Holstead
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Patent number: RE31893Abstract: A color photographic material having a light-sensitive silver halide emulsion layer containing a DIR compound having an amino group and a DIR compound having no amino group.Type: GrantFiled: July 14, 1983Date of Patent: May 21, 1985Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Hiroshi Sugita, Shizuo Saito, Ryosuke Sato, Kiyoshi Yamashita