Heterocyclic Coupler Patents (Class 430/558)
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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: 5605788Abstract: A silver halide color photographic material containing a pyrazolotriazole coupler represented by the following formula (I) or (II): ##STR1## wherein R.sub.1 represents a hydrogen atom, a halogen atom, or a substituent; X represents a hydrogen atom, a halogen atom, or a group capable of being splitted off by the reaction with an oxidation product of a developing agent; L.sub.1 represents an (n+1)-valent linking group; L.sub.2 represents a group represented by the following formula (III); and n represents 1 or 2, and when n is 2, two L.sub.2 's may be the same or different;--[(A.sub.1).sub.a (B.sub.1).sub.b (A.sub.2).sub.c (B.sub.2).sub.d (A.sub.3).sub.e (B.sub.3).sub.f (A.sub.4).sub.g (B.sub.4).sub.h ](III)wherein A.sub.1, A.sub.2, A.sub.3 and A.sub.4 each represents --O--, --S--, --NR.sub.2 --, --N(R.sub.2)CO--, --CON(R.sub.2)--, --N(R.sub.2)SO.sub.2 --, --SO.sub.2 N(R.sub.2)--, --CO.sub.2 --, --OCO--, --N(R.sub.2)CON(R.sub.3)--, --OCON(R.sub.2)-- or --N(R.sub.2)CO.sub.2 --; R.sub.2 and R.sub.Type: GrantFiled: November 9, 1995Date of Patent: February 25, 1997Assignee: Fuji Photo Film Co., Ltd.Inventors: Toshio Kawagishi, Takeshi Nakamine, Masuji Motoki
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Patent number: 5597679Abstract: A silver halide color photographic light-sensitive material is disclosed which comprises a support having thereon, in any order, at least one yellow generating light-sensitive silver halide emulsion layer, at least one magenta generating light-sensitive silver halide emulsion layer, and at least one cyan generating light-sensitive silver halide emulsion layer, wherein at least one of the magenta generating light-sensitive silver halide emulsion layer contains at least one dye-forming coupler represented by a specific formula (M-I), and at least one of the yellow generating light-sensitive silver halide emulsion layer contains at least one dye-forming coupler represented by a specific forrmula (Y-I). This material can be used, for example, as a material suitable for quick developing material.Type: GrantFiled: April 19, 1995Date of Patent: January 28, 1997Assignee: Fuji Photo Film Co., Ltd.Inventor: Yasuhiro Yoshioka
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Patent number: 5597683Abstract: Disclosed is a silver halide color photographic photosensitive material comprising a support, having thereon at least one photosensitive silver halide layer. At least 50% of the total projected area of the silver halide grains in the emulsion layer is accounted for by tabular grains of an aspect ratio at least 2:1, and a compound which can be represented by formula (I) below is in at least one layer.Type: GrantFiled: May 26, 1994Date of Patent: January 28, 1997Assignee: Fuji Photo Film Co., Ltd.Inventors: Minoru Uchida, Shunichi Tomita, Toshio Kawagishi
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Patent number: 5591569Abstract: This invention provides a photographic process and element where the element comprises a support bearing a light-sensitive photographic silver halide layer containing (1) a bicyclic azole coupler, (2) an azopyrazolone masking coupler, and (3) an aromatic electron-rich compound having ring substituents for which the sum of the individual Hammett sigma-para values is more negative than -0.80.Type: GrantFiled: October 5, 1995Date of Patent: January 7, 1997Assignee: Eastman Kodak CompanyInventors: Daniel L. Kapp, Janet Younathan
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Patent number: 5578441Abstract: 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 (Ia) and (a) a sensitizing dye containing a sulfonamide group, (b) negative-type internal latent image-type silver halide grains chemically sensitized to a defined depth from the surface, (c) grains each having a defined spectral sensitivity distribution and a DIR-hydroquinone, (d) a monodisperse silver halide emulsion, (e) non-photosensitive silver halide emulsion wherein the inside or the surface of grains is fogged, (f) a colloidal silver, or (g) a DIR-hydroquinone: formula (Ia) ##STR1## wherein the substituents are as defined herein the specification.Type: GrantFiled: September 30, 1994Date of Patent: November 26, 1996Assignee: Fuji Photo Film Co., Ltd.Inventors: Satoshi Nagaoka, Kazuyoshi Yamakawa, Mitsuru Yamamoto, Makoto Suzuki, Yasuhiro Shimada, Katsuro Nagaoka, Hideo Ikeda, Takefumi Hara, Sadanobu Shuto
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Patent number: 5578436Abstract: 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: May 30, 1995Date of Patent: November 26, 1996Assignee: 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: 5578437Abstract: A silver halide color photographic light-sensitive material comprising a support having provided thereon photographic constituent layers comprising at least a yellow dye-forming silver halide emulsion layer, a magenta dye-forming silver halide emulsion layer and a cyan dye-forming silver halide emulsion layer. The total silver coverage in said silver halide emulsion layers is 0.6 g/m.sup.2 or less. The magenta dye-forming silver halide emulsion layer contains silver halide emulsion grains comprising silver chloride or silver chlorobromide substantially free of silver iodide having a silver chloride content of 90 mol % or more, at least one magenta dye-forming coupler represented by formula (M-I): ##STR1## and the total coating amount of oil-soluble components contained in photographic constituent layers above the silver halide emulsion layer nearest to the support is 3.5 g/m.sup.2 or less.Type: GrantFiled: May 9, 1995Date of Patent: November 26, 1996Assignee: Fuji Photo Film Co., Ltd.Inventors: Masahiro Asami, Hiroyuki Yoneyama
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Patent number: 5576150Abstract: The invention provides a photographic light sensitive silver halide emulsion layer having associated therewith a pyrazolotriazole dye-forming coupler having formula: ##STR1## wherein: R.sub.1 is a substituent bonded to the pyrazolotriazole nucleus by a fully substituted carbon atom;X is hydrogen or a coupling-off group;R.sub.2, R.sub.3, R.sub.4, and R.sub.6 are independently hydrogen or substituent groups;q is from 1 to 3;R.sub.5 and R.sub.7 are independently alkyl, alkoxy, aryl, or aryloxy groups;G is a substituent group and n is from 0 to 3; andY is a substituent group and m is 0 to 4.The invention also provides a coupler compound, a photographic element containing the emulsion layer of the invention, and an imaging process.Type: GrantFiled: February 29, 1996Date of Patent: November 19, 1996Assignee: Eastman Kodak CompanyInventors: Ping W. Tang, Stanley W. Cowan, David J. Decker, Daniel E. Corcoran
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Patent number: 5576161Abstract: A silver halide color photographic material improved in color forming properties and light fastness of color image is disclosed, comprising a support having thereon a light-sensitive silver halide emulsion layer and a nonlight-sensitive layer, wherein the nonlight-sensitive layer contains a UV absorbent and the silver halide emulsion layer contains a polyhydric alcohol.Type: GrantFiled: July 24, 1995Date of Patent: November 19, 1996Assignee: Konica CorporationInventors: Motoi Nishimura, Hirokazu Sato, Hiroshi Kita
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Patent number: 5573892Abstract: Compounds of the formula I are suitable as photographic yellow couplers ##STR1## In formula I, Z.sub.1, Z.sub.2 mean residues to complete 5-, 6- or 7-membered rings of an aromatic or heteroaromatic nature; these rings may be substituted with substituents R.sup.1, R.sup.2, R.sup.3 and R.sup.4 ;X means H or a substituent which is released under chromogenic development conditions.Type: GrantFiled: October 25, 1995Date of Patent: November 12, 1996Assignee: AGFA-Gevaert AGInventor: G unther Schenk
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Patent number: 5573898Abstract: Disclosed is a silver halide color photographic material having plural light-sensitive layers on a reflective support, in which the reflective support is composed of a base and two or more waterproof resin coat layers each having a different white pigment content in such a way that the resin coat layers are sandwiched between the base and the light-sensitive layers, the cyan coupler-containing silver halide emulsion layer contains a particular pyrroloazole cyan dye-forming coupler, and the pH of the coated film of the material is from 4.0 to 6.5. The material is low-priced and has a good coloring property, excellent color reproducibility and high sharpness. As the material has sufficient pressure resistance, it has few stress marks even after stored. Also disclosed is a method for forming a color image, using the photographic material.Type: GrantFiled: September 29, 1994Date of Patent: November 12, 1996Assignee: Fuji Photo Film Co., Ltd.Inventor: Hidekazu Sakai
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Patent number: 5569577Abstract: Disclosed is a color photographic material having, on a reflective support coated with waterproof resin layers, at least three different color-sensitive silver halide emulsion layers containing any of cyan, magenta and yellow couplers, in which the number of said waterproof resin layers under said photographic constitutive layers is at least three, at least one of said waterproof resin layers contains from 15% by weight to 45% by weight of a white pigment, the waterproof resin layer nearest to the substrate of the support and that nearest to the photographic constitutive layers donor contain a white pigment or contain it in an amount of 20% by weight or less, the thickness of the waterproof resin layer nearest to the photographic constitutive layers is 5 .mu.m or less, and at least one emulsion layer contains high silver chloride emulsion grains having a silver chloride content of 95 mol % or more and contains a mercaptohetercyclic compound.Type: GrantFiled: March 8, 1995Date of Patent: October 29, 1996Assignee: Fuji Photo Film Co., Ltd.Inventor: Kazunori Hasebe
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Patent number: 5565310Abstract: A silver halide color light-sensitive material comprising a reflective support having provided thereon a yellow-forming light-sensitive layer, a magenta-forming light-sensitive layer, and a cyan-forming light-sensitive layer, wherein said magenta-forming layer contains a pyrazolo[1,5-b][1,2,4]triazole magenta coupler having a substituted phenyl at the 2-position and a bulky substituent at the 6-position, and said light-sensitive material has a reflection density of not less than 0.3. The light-sensitive material has excellent sharpness and reduced dependence on processing.Type: GrantFiled: January 25, 1995Date of Patent: October 15, 1996Assignee: Fuji Photo Film Co., Ltd.Inventor: Kiyoshi Kawai
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Patent number: 5565313Abstract: Disclosed is a silver halide color photographic light-sensitive material comprising at least one of magenta coupler represented by Formula I or II: ##STR1## wherein R.sup.1 and R.sup.4 each represent a substituent; R.sup.2 and R.sup.3 each represent a substituted or unsubstituted alkyl group; L.sub.1 and L.sub.2 each represent a substituted or unsubstituted alkylene group, an arylene group, an aralkylene group or an arylenealkylene group; Y represents ##STR2## R.sup.5 and R.sup.6 each represent a substituent; X.sub.1 represents a hydrogen atom or a group capable of splitting off upon reacting with an oxidized product of a color developing agent; Z represents non-metal atomic group forming a 5-membered or 6-membered heterocyclic ring together with a nitrogen atom; m and n each represent an integer of 0 or 1; p represents an integer of 0 to 4; q represents an integer of 0 to 2, provided that when p is 2 or more, R.sup.4 may be the same or different; and each of them may form a ring.Type: GrantFiled: March 7, 1996Date of Patent: October 15, 1996Assignee: Konica CorporationInventors: Hiroshi Ishidai, Hiroshi Kita, Yutaka Kaneko
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Patent number: 5565312Abstract: Dye fade in photographic images prepared from a silver halide photographic element having a light sensitive silver halide emulsion layer and a pyrazoloazole dye forming coupler is reduced by using a combination of stabilizer compounds as shown in the specification.Type: GrantFiled: April 26, 1995Date of Patent: October 15, 1996Assignee: Eastman Kodak CompanyInventor: Rakesh Jain
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Patent number: 5563028Abstract: A silver halide photographic material comprising at least one silver halide emulsion layer and at least one non-light-sensitive hydrophilic colloidal layer provided on a support. The silver halide emulsion layer or the hydrophilic colloidal layer contains a dye represented by the formula (I): ##STR1## in which A.sup.1 is an alkyl group, a substituted alkyl group, an aryl group or a substituted aryl group; each of Q.sup.1 and Q.sup.2 is hydrogen, an alkyl group or a substituted alkyl group, or Q.sup.1 and Q.sup.2 are combined with each other to form a five or six-membered heterocyclic ring; Q.sup.3 is hydrogen, a halogen atom, carboxyl, hydroxyl, methyl or methoxy; each of M.sup.1 and M.sup.2 is hydrogen, a metal atom or an atomic group that forms a monovalent cation; and p is 2, 3 or 4.Type: GrantFiled: August 17, 1995Date of Patent: October 8, 1996Assignee: Fuji Photo Film Co., Ltd.Inventors: Tetsuo Nakamura, Shigeru Ohno, Kiyoshi Kawai
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Patent number: 5561040Abstract: There is provided a method for forming an image, which comprises processing a silver halide color photographic material that has a high-silver-chloride silver halide emulsion and which contains in the photographic material a nitrogen-containing heterocyclic compound, the solubility product of which for the silver salt is in a limited range, with a color developer containing chloride ions and bromide ions in a limited concentration, respectively. The method is excellent in forming an image that can be performed rapidly, and is high in sensitivity, in prevention of processing color-mixing, and in less fluctuation of the photographic quality involved in continuous processing.Type: GrantFiled: May 26, 1995Date of Patent: October 1, 1996Assignee: Fuji Photo Film Co., Ltd.Inventors: Kiyoshi Kawai, Shigeaki Ohtani
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Patent number: 5561037Abstract: Dye fade in photographic images prepared from a silver halide photographic element having a light sensitive silver halide emulsion layer and a pyrazoloazole dye forming coupler is reduced by using a combination of stabilizer compounds of formula S, formula I and optionally formula R.Type: GrantFiled: April 26, 1995Date of Patent: October 1, 1996Assignee: Eastman Kodak CompanyInventors: Rakesh Jain, William R. Schleigh
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Patent number: 5547826Abstract: A silver halide photographic material comprising a support having provided thereon at least one layer containing a coupler represented by formula (I) ##STR1## wherein Za represents --C(R.sub.3).dbd. or --N.dbd., provided that when Za represents --N.dbd., Zb represents --C(R.sub.3).dbd. and when Za represents --C(R.sub.3).dbd., Zb represents --N.dbd.; R.sub.1 and R.sub.2 each represents an electron withdrawing group having a Hammett's substituent constant, .sigma..sub.p, of from 0.20 to 1.0; R.sub.3 represents a substituent; R.sub.4 and R.sub.5 are the same or different, and each represents a hydrogen atom, an aliphatic group, an aryl group or a heterocyclic group; and R.sub.4 and R.sub.5 may combine with each other to form a 5-membered ring or a 6-membered ring and the 5-membered ring or the 6-membered ring may form a condensed ring with a benzene ring or a heterocyclic ring.Type: GrantFiled: September 22, 1995Date of Patent: August 20, 1996Assignee: Fuji Photo Film Co., Ltd.Inventors: Takayuki Ito, Yasuhiro Shimada, Koushin Matsuoka, Yasuhiro Yoshioka
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Patent number: 5547825Abstract: A silver halide color photographic material which has on a support the combination of a pyrroloazole type cyan coupler and a redox compound having a molecular weight of at least 350 to provide color photographs having faithfully reproduced colors which are highly fast to light under both high and low humidity conditions.Type: GrantFiled: April 25, 1995Date of Patent: August 20, 1996Assignee: Fuji Photo Film Co., Ltd.Inventors: Osamu Takahashi, Nobutaka Ohki
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Patent number: 5545514Abstract: A silver halide color photographic light-sensitive material is disclosed. The light-sensitive material has a silver halide emulsion layer which contains oleophilic particles comprising a dye-forming coupler and a water-insoluble monohydric alcohol represented by the following Formula I, II or III; ##STR1## wherein m is an integer of 1 to 20; one of R.sub.11, R.sub.12 and R.sub.13 in number of m is a hydrogen atom and other groups represented by R.sub.11, R.sub.12 and R.sub.13 are each an acyl group; and the total number of carbon atoms contained in the acyl groups represented by R.sub.11, R.sub.12 and R.sub.13 are not less than 8; ##STR2## wherein one of R.sub.21, R.sub.22, R.sub.23 and R.sub.24 is a hydrogen atom and other groups represented by R.sub.21, R.sub.22, R.sub.23 and R.sub.24 are each an acyl group and the total number of carbon atoms contained in the acyl groups represented by R.sub.21, R.sub.22, R.sub.23 and R.sub.24 is not less than 12; ##STR3## wherein one of R.sub.31, R.sub.32, R.sub.33 and R.Type: GrantFiled: July 11, 1995Date of Patent: August 13, 1996Assignee: Konica CorporationInventors: Hiroshi Kita, Hirokazu Sato, Koji Daifuku
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Patent number: 5545513Abstract: A multilayered color photographic element contains a support having coated thereon photographic silver halide emulsion layers including at least three layers each having the same spectral sensitivity but having, respectively, the most, mid, and least light sensitivity wherein the most and mid sensitive layers are contiguous and the most sensitive layer is extremely starved of image dye-forming coupler.Type: GrantFiled: June 11, 1993Date of Patent: August 13, 1996Assignee: Eastman Kodak CompanyInventor: Larry D. Edwards
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Patent number: 5543275Abstract: A silver halide color photographic material having excellent color absorption characteristics and good yellow density is achieved by using a support having thereon at least one yellow coloring light-sensitive layer, at least one magenta coloring light-sensitive layer, and at least one cyan coloring light-sensitive layer, wherein the magenta coloring light-sensitive layer contains at least one dye-forming coupler represented by the following formula (M-I), at least one high boiling point organic solvent having a dielectric constant of 6.0 or less and a refractive index of 1.50 or less, and at least one benzotriazole ultraviolet absorber: ##STR1## wherein R.sub.1 represents a branched or aromatic group represented by the formulas (Q-1), (Q-2) or (Q-3); R.sub.2 and R.sub.3 each represents a substituent; n represents an integer of form 0 to 4, and when n is 2 or more, the plurality of R.sub.Type: GrantFiled: May 10, 1995Date of Patent: August 6, 1996Assignee: Fuji Photo Film Co., Ltd.Inventor: Toshiyuki Makuta
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Patent number: 5543282Abstract: Disclosed is a silver halide photographic photosensitive material wherein a photosensitive silver halide emulsion layer contains a silver halide emulsion which is comprised of tabular grains. The grains have an aspect ratio at least 2 account for at least 50% of the total number of silver halide grains. The emulsion layer or the layer adjacent thereto also contains a cyan coupler represented by formula (Ia): ##STR1## wherein the variables in the formula are defined in the specification.Type: GrantFiled: April 6, 1995Date of Patent: August 6, 1996Assignee: Fuji Photo Film Co., Ltd.Inventors: Keiji Mihayashi, Yasuhiro Shimada
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Patent number: 5543276Abstract: Thermal and photochemical yellowing of a color photographic element, such as a color print, is inhibited by incorporating into the photographic element an ionizable epoxy compound having the formula: ##STR1## wherein: R is H, alkyl, substituted alkyl, aryl, or substituted aryl;L.sub.1 is alkyl, substituted alkyl, aryl, or substituted aryl;L.sub.2 is O, CO, S, SO.sub.2, PO.sub.2, C(O)O, NHCO or NHSO.sub.2 ;L.sub.3 is alkyl or substituted alkyl;m is 0 or 1;p is 0 or 1;X is selected from the group consisting of ##STR2## wherein: R' is H, alkyl, substituted alkyl, aryl or substituted aryl,or, if L.sub.2 comprises an ionizable group, X is alkyl, substituted alkyl, aryl or substituted aryl.Type: GrantFiled: June 8, 1994Date of Patent: August 6, 1996Assignee: Eastman Kodak CompanyInventors: Krishnan Chari, Wendell F. Smith, Jr., Paul P. Spara, Sundaram Krishnamurthy
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Patent number: 5541045Abstract: Disclosed is a silver halide color photographic material containing at least one pyrazolotriazole magenta of formula (I) and at least one 1,3,5-triazine compound of formula (II) in the same photographic constitutive layer. ##STR1## wherein R represents a hydrogen atom or a substituent; Za, Zb and Zc each represent a methine group, a substituted methine group, .dbd.N-- or --NH--; Y represents a hydrogen atom or a group capable of splitting off from the formula by coupling reaction with an oxidation product of a developing agent; and the formula may form a dimer or a higher polymer via R, Y or the substituted methine group for Za, Zb or Zc. ##STR2## wherein A, B and C each represent a substituted or unsubstituted alkyl, substituted or unsubstituted aryl, substituted or unsubstituted alkoxy, substituted or unsubstituted aryloxy or substituted or unsubstituted heterocyclic group, provided that at least one of A, B and C represents a group of a general formula (III): ##STR3## wherein R.sub.1 ' and R.sub.Type: GrantFiled: October 17, 1994Date of Patent: July 30, 1996Assignee: Fuji Photo Film Co., Ltd.Inventors: Osamu Takahashi, Masakazu Morigaki
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Patent number: 5538842Abstract: There is disclosed a silver halide color photographic light-sensitive material which excels in a color reproduction and a light fastness at a low density part through a high density part and which is improved in a Y-stain at a background part. The silver halide color photographic light-sensitive material comprises a support and provided thereon at least one photographic constitutional layer, wherein at least one layer of the above photographic constitutional layers contains at least one of the compounds represented by the following Formula (I) and a compound represented by the following Formula (II) in the same layer: ##STR1## wherein R represents a hydrogen atom or a substituent; Z.sub.a, Z.sub.b, and Z.sub.c each represent any group of methine, substituted methine, .dbd.N--, or --NH--; Y represents a hydrogen atom or a group capable of splitting off upon a coupling reaction with an oxidation product of a developing agent; provided that a dimer or a polymer may be formed via R, Y, or Z.sub.a, Z.sub.b or Z.Type: GrantFiled: June 30, 1994Date of Patent: July 23, 1996Assignee: Fuji Photo Film Co., Ltd.Inventors: Osamu Takahashi, Takehiko Sato
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Patent number: 5538838Abstract: The present invention provides a silver halide color photographic material having an excellent color reproducibility and preservability.Type: GrantFiled: December 7, 1994Date of Patent: July 23, 1996Assignee: Fuji Photo Film Co., Ltd.Inventors: Yoichi Suga, Junji Nishigaki
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Patent number: 5534401Abstract: There are described reversal photographic elements containing magenta dye-forming couplers that yield dye images that particularly lend themselves to retouching. The photographic element comprises a pyrazoloazole magenta dye forming coupler having a cleavable ballast group joined to the remainder of the molecule by one or two electrophilic cleavage groups which can be removed with a specialized processing composition after reversal processing.Type: GrantFiled: March 1, 1995Date of Patent: July 9, 1996Assignee: Eastman Kodak CompanyInventors: J. R. Vargas, John W. Harder, Phillip D. Knight, Paul A. Burns, Lynda D. Weber
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Patent number: 5534400Abstract: A silver halide color photographic light-sensitive material comprises a green-sensitive silver halide emulsion layer containing a magenta coupler is disclosed. The magenta coupler is represented by a coupler of a formula: ##STR1## In the formulae R represents a primary alkyl group having 5 or more carbon atoms; X represents a hydrogen atom or a substituent which splits off upon reaction with the oxidation product of a color developing agent; Z represents a group of non-metal atoms necessary to form a nitrogen-containing heterocyclic ring; R.sub.21 represents an alkylene or alkenylene group having a primary carbon atom bound directly to Z; R.sub.22 represents an alkyl group.Type: GrantFiled: January 5, 1995Date of Patent: July 9, 1996Assignee: Konica CorporationInventors: Shigeto Hirabayashi, Shuichi Sugita
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Patent number: 5529894Abstract: Disclosed is a silver halide color photographic material which comprises a support having thereon at least one photosensitive silver halide emulsion layer, a pyrazoloazole based magenta coupler, and a coupler which contains a plurality of photographically useful groups or precursors thereof. The photograhically useful groups or precursors thereof are capable of being released when the coupler undergoes a coupling reaction with the oxidized product of a color developing agnet.Type: GrantFiled: March 9, 1994Date of Patent: June 25, 1996Assignee: Fuji Photo Film Co., Ltd.Inventors: Keiji Mihayashi, Atsuhiro Ohkawa
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Patent number: 5518870Abstract: A silver halide color photographic material comprising a support having thereon a yellow coupler-containing silver halide emulsion layer, a magenta coupler-containing silver halide emulsion layer and a cyan coupler-containing silver halide emulsion layer, wherein each silver halide emulsion layer contains silver halide grains having a silver chloride content of not lower than 90 mol %, a yellow coupler in said yellow coupler-containing silver halide emulsion layer is coated in an amount of at least 1.1 mmol/m.sup.2, oil/coupler ratio by weight in the yellow coupler-containing silver halide emulsion layer is 0.32 or less and the magenta coupler-containing layer contains at least one magenta coupler represented by the following general formula (I): ##STR1## wherein R.sup.1 and R.sup.Type: GrantFiled: May 25, 1995Date of Patent: May 21, 1996Assignee: Fuji Photo Film Co., Ltd.Inventor: Yoshio Sakakibara
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Patent number: 5514532Abstract: A silver halide color photographic material comprising a support having thereon at least one layer containing a hydrazide compound represented by the following formula (1) ##STR1## wherein R represents an alkyl group, an aryl group, or an aromatic heterocyclic group and (PA) represents a pyrazoloazole coupler residue or an indazolone coupler residue.Type: GrantFiled: October 11, 1994Date of Patent: May 7, 1996Assignee: Fuji Photo Film Co., Ltd.Inventors: Tadahisa Sato, Kei Sakanoue
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Patent number: 5512425Abstract: A color photographic light-sensitive material has excellent smoothness and glossiness on the surface of the light-sensitive material and provides good color developing performance and excellent color reproduction performance as well as less pressure fog in aging and storage.Type: GrantFiled: August 22, 1995Date of Patent: April 30, 1996Assignee: Fuji Photo Film Co., Ltd.Inventor: Akira Kase
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Patent number: 5510234Abstract: Compounds corresponding to formula (I): ##STR1## in which R.sub.1 represents alkyl, alkenyl, cycloalkyl or cycloalkenyl,R.sub.2 and R.sub.3 independently of one another represent H, alkyl, alkenyl, cycloalkyl or cycloalkenyl,R.sub.4 represents alkylene or alkenylene,X represents CO or SO.sub.2,m 0 or 1 andl is a number of 1 to 5,as coupler solvents lead to steeper gradation and greater maximum densities.Type: GrantFiled: August 21, 1995Date of Patent: April 23, 1996Assignee: Agfa - Gevaert AGInventor: Beate Weber
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Patent number: 5508421Abstract: A pyrrolotriazole azomethine dye represented by formula (I), (II) or (IV) is disclosed: ##STR1## Also, a heat transfer dye providing material is disclosed, in which the material includes a support having thereon a dye providing layer containing a heat migrating dye, with the dye providing layer containing at least one pyrrolotriazole azomethine dye represented by any of the above formulae (I), (II) and (IV).Type: GrantFiled: July 22, 1994Date of Patent: April 16, 1996Assignee: Fuji Photo Film Co., Ltd.Inventors: Makoto Suzuki, Hisashi Mikoshiba, Seiiti Kubodera, Osamu Takahashi, Yasuhiro Shimada, Koushin Matsuoka, Shigeru Yamazaki, Katsuyoshi Yamakawa, Kozo Sato
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Patent number: 5508157Abstract: A color photographic silver halide material in which at least one coupler is dissolved or dispersed in a coupler solvent corresponding to the following formula: ##STR1## in which R.sub.1 is alkyl, alkenyl, cycloalkyl or cycloalkenyl,R.sub.2 and R.sub.3 are alkylene or alkenylene,X is CO, NHCO or SO.sub.2,n is 0 or 1 andl, m are numbers of 1 to 5,is distinguished by steep gradation and improved maximum density.Type: GrantFiled: May 30, 1995Date of Patent: April 16, 1996Assignee: Agfa-Gevaert AGInventors: Beate Weber, Markus Geiger, Gunter Helling, Jorg Hagemann
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Patent number: 5508147Abstract: Yellowing of a processed photographic element is inhibited by incorporating a scavenger comound capable of reacting with magenta coupler, e.g. an epoxy compound, in a layer adjacent a layer containing the magenta coupler. In a preferred embodiment, the magenta coupler containing layer is sandwiched between layers containing the scavenger compound. Prior to processing at least one of these layers contains a solubilizing agent for the scavenger compound. In preferred embodiments, the processing solution used to process the photographic element containing an external solubilizing agent for the scavenger compound, preferably benzyl alcohol.Type: GrantFiled: January 4, 1993Date of Patent: April 16, 1996Assignee: Eastman Kodak CompanyInventors: Krishnan Chari, Wendell F. Smith, Sundaram Krishnamurthy
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Patent number: 5500334Abstract: Disclosed is a silver halide color photographic material having at least one silver halide emulsion layer on a support, in which at least one layer constituting the material contains a coupler of formula (I): ##STR1## where R.sub.1 represents an electron-attracting substituent having a Taft's substituent constant .sigma.* value of +0.52 or more; R.sub.2 represents a branched alkyl group; and X represents a pyrazolyl group. The material has excellent heat stability, sensitivity, gradation and color image fastness, and it also has excellent color forming capacity and absorption characteristics.Type: GrantFiled: September 4, 1992Date of Patent: March 19, 1996Assignee: Fuji Photo Film Co., Ltd.Inventors: Yuki Mizukawa, Hideaki Naruse, Toshiyuki Watanabe, Tadahisa Sato
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Patent number: 5492798Abstract: Disclosed is a silver halide color photographic light-sensitive material comprising a magenta coupler represented by Formulas I or II: ##STR1## wherein R.sub.1 represents a substituent; X represents a hydrogen atom or a group capable of splitting off upon reaction with an oxidized product of a color developing agent; and R represents a substituted alkyl group containing at least two units represented by Formula III: ##STR2## wherein Y represents a non-metallic atomic group necessary to form a 5-membered or 6-membered heterocyclic ring together with a nitrogen atom.Type: GrantFiled: December 1, 1994Date of Patent: February 20, 1996Assignee: Konica CorporationInventors: Hiroshi Kita, Hiroshi Ishidai
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Patent number: 5492796Abstract: A silver halide color photographic material having on a support at least one light-sensitive silver halide emulsion layer, wherein the color photogrphic material contains a nondiffusing coupler represented by formula (I):Cp--(LINK).sub.n --N(R.sub.1)--Ar(OR.sub.2)--X (I)wherein Cp represents a coupler residue (residual group) which can undergo coupling reaction with the oxidation product of a color developing agent to release --(LINK).sub.n --N(R.sub.1)--Ar(OR.sub.2)--X; LINK represents a group which can release --N(R.sub.1)--Ar(OR.sub.2)--X after cleavage of bond to Cp; n represents 0 or an integar of 1 or 2, Ar represents an arylene group; X represents an amino group, an alkoxy group or a hydroxyl group; R.sub.1 represents a hydrogen atom or a substituent; and R.sub.Type: GrantFiled: October 26, 1994Date of Patent: February 20, 1996Assignee: Fuji Photo Film Co., Ltd.Inventors: Masashi Ogiyama, Seiji Ichijima
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Patent number: 5492799Abstract: The invention provides a photographic element comprising a support bearing a light-sensitive photographic silver halide layer having associated therewith a masking coupler comprising:(1) a parent group containing a -1-phenyl-3-anilinopyrazolin-5-one having electron-withdrawing substituents on the phenyl and anilino rings of a type and number sufficient to provide a combined Hammett sigma(para) value for such substituents of at least 1.Type: GrantFiled: June 22, 1994Date of Patent: February 20, 1996Assignee: Eastman Kodak CompanyInventors: Daniel L. Kapp, Robert J. Ross, Stephen P. Singer, Bernard A. Clark
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Patent number: 5491049Abstract: The present invention provides a photographic element comprising a support, at least one photosensitive silver halide layer and in or adjacent said silver halide layer a colour coupler of one of the general formulas: ##STR1## wherein R.sup.1 is a subsituted or unsubstituted aryl or a subsituted or unsubstituted heterocylic group,R.sup.2 is a subsituted or unsubstituted, saturated or unsaturated, primary or secondary alkyl group in which the carbon atom which joins R.sup.2 to rest of the coupler has at least one fluorine atom attached to it,R.sup.3 is an electron-withdrawing group, andX is H or a coupling-off group,and wherein the electron-withdrawing properties of R.sup.1 are such that the dye formed on coupling with oxidised colour developing agent 4-(N-ethyl-N-2-hydroxyethyl)-2-methylphenylenediamine has a .lambda..sub.max of from 537 to 570 nm.The invention also includes the coupler composition, methods of synthesizing the coupler and a method of forming an image in a photographic element.Type: GrantFiled: May 4, 1994Date of Patent: February 13, 1996Assignee: Eastman Kodak CompanyInventor: Philip A. Allway
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Patent number: 5482821Abstract: The invention provides a photographic process and element where the element comprises a light sensitive silver halide layer containing (1) an image dye-forming bicyclic azole coupler having bonded to the coupling site a group other than hydrogen which is clearable during the development process; (2) an azopyrazolone masking coupler; and (3) a stabilizing coupler having bonded to the coupling site only hydrogen atoms and/or carbon atoms which are not cleavable to permit dye formation during development.Type: GrantFiled: September 30, 1993Date of Patent: January 9, 1996Assignee: Eastman Kodak CompanyInventors: Daniel L. Kapp, Janet N. Younathan
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Patent number: 5476759Abstract: A silver halide color photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer is disclosed, wherein said light-sensitive material contains a DIR coupler represented by formula (I): ##STR1## wherein A represents a coupler residue; R represents an alkyl group having from 1 to 4 carbon atoms or a pyridyl group; and n represents 1 when A represents a phenol type or naphthol type coupler residue, or n represents 0 when A represents other coupler residues, and said emulsion layer contains chemically sensitized silver halide grains which individually have a distinct layer comprising silver iodobromide containing from 7 to 45 mol % of silver iodide and which individually have an overall silver iodide content of more than 4 mol %.Type: GrantFiled: July 28, 1993Date of Patent: December 19, 1995Assignee: Fuji Photo Film Co., Ltd.Inventors: Keiji Mihayashi, Seiji Ichijima, Toshio Kawagishi, Naoki Saito, Masuji Motoki
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Patent number: 5476756Abstract: Yellowing of a processed photographic element is inhibited by incorporating a scavenger compound capable of reacting with magenta coupler, e.g. an epoxy compound, in a layer adjacent a layer containing the magenta coupler. At least one of these layers contains a solubilizing agent for the scavenger compound. In preferred embodiments, the processing solution used to process the photographic element contains an external solubilizing agent for the scavenger compound, preferably benzyl alcohol.Type: GrantFiled: June 8, 1994Date of Patent: December 19, 1995Assignee: Eastman Kodak CompanyInventors: Krishnan Chari, Wendell F. Smith, Sundaram Krishnamurthy
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Patent number: 5474880Abstract: Disclosed is a silver halide color photosensitive material having on a support at least a cyan color-generating silver halide emulsion layer in which oleophilic fine particles containing both a pyrroloazole type cyan coupler and a phenol or amide type high boiling organic solvent are dispersed, thereby ensuring excellent cyan-color generation performance, desirable spectral sensitivity characteristics and satisfactory color reproduction and making it feasible to reduce the change of the generated color from pure to muddy upon storage under a high temperature-high humidity condition.Type: GrantFiled: September 13, 1994Date of Patent: December 12, 1995Assignee: Fuji Photo Film Co., Ltd.Inventor: Toshiyuki Makuta
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Patent number: 5470696Abstract: A photographic element comprising a support, at least one photosensitive silver halide layer and associated therewith a color coupler of the general formula (1) or (2): ##STR1## wherein A and B represent the same or different electron-withdrawing group,X is H or a group which splits off on coupling with oxidized color developer,R is an alkyl, cycloalkyl, aryl or heterocyclic which may be substituted, --COR.sup.1, --CSR.sup.1, SOR.sup.1, SO.sub.2 R.sup.1, --NHCOR.sup.1, --CONHR.sup.1, --COOR.sup.1, --COSR.sup.1, --NHSO.sub.2 R.sup.1 wherein R.sup.1 is an alkyl, cycloalkyl, or aryl group any of which are optionally substituted,and wherein two or more of A, B, R, and X optionally form part of a ring,Link is a linking group andn is 0, 1 or 2.Type: GrantFiled: June 1, 1993Date of Patent: November 28, 1995Assignee: Eastman Kodak CompanyInventor: Hugh M. Williamson
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Patent number: 5470697Abstract: A magenta coupler and a light sensitive silver halide color photographic material containing the coupler are disclosed. The magenta coupler is represented by formulas ##STR1## wherein R.sub.1 is a hydrogen atom or a substituent, R.sub.2, R.sub.3 and R.sub.4 each represents a hydrogen atom or a substituent, L is an alkylene group, n is 0 or 1, R.sub.5 and R.sub.6 each represents a hydrogen atom or a substituent, where R.sub.5 and R.sub.6 may be condensed to form a cycle, and X is a hydrogen atom or an atom or a group that can be released upon the reaction with an oxidation product of color developing agent.Type: GrantFiled: June 1, 1994Date of Patent: November 28, 1995Assignee: Konica CorporationInventors: Hiroshi Kita, Hiroshi Ishidai, Yutaka Kaneko