Heterocyclic Coupler Patents (Class 430/558)
  • Patent number: 4983503
    Abstract: There are disclosed a method for processing a light-sensitive silver halide color photographic material by subjecting a light-sensitive silver halide color photographic material after color developing to bleach-fixing processing, characterized in that the light-sensitive silver halide color photographic material contains at least one cyan coupler represented by the formula (A), (B) or (C) as specified in the specification, or contains at least one magenta coupler represented by the formula (M-1), the bleach-fixing processing step is a step which is a counter-current system uses two or more tanks of continuous bleach-fixing tanks, and the silver concentration in the bleach-fixing solution in a final tank of the bleach-fixing tanks is maintained at 80% or lower of the silver concentration in a bleach-fixing solution in a first tank, and a method for processing a light-sensitive silver halide color photographic material by subjecting a light-sensitive silver halide color photographic material after color develop
    Type: Grant
    Filed: February 26, 1990
    Date of Patent: January 8, 1991
    Assignee: Konica Corporation
    Inventors: Masao Ishikawa, Shigeharu Koboshi, Satoru Kuse, Masayuki Kurematsu
  • Patent number: 4977073
    Abstract: A silver halide light-sensitive color photographic material which comprises a coupler represented by formula [I]; ##STR1## wherein A represents a coupler residue that is capable of releasing the remaining group of said coupler upon reaction with an oxidation product of a developing agent; L represents a timing group which is capable of releasing the rest of the group after said remaining group being released from A; n represents 0 or 1; X represents an oxygen or sulfur atom; Y represents a --NHSO.sub.2 R.sub.1 ' group, a ##STR2## group or a --NHCOR.sub.1 ' group, in which formulas R.sub.1 ' and R.sub.2 ' independently represent a hydrogen atom, an aliphatic group, an aromatic group or a heterocyclic group; R.sub.1 and R.sub.2 independently represent a hydrogen atom, an aliphatic group, an aromatic group or a heterocyclic group; R.sub.3 represents a substituent group; m represents 0, 1 or 2, provided that when m is 2, two R.sub.3 s may be different, and that two of R.sub.1, R.sub.2 and R.sub.3 or two of R.sub.
    Type: Grant
    Filed: December 23, 1988
    Date of Patent: December 11, 1990
    Assignee: Konica Corporation
    Inventors: Osamu Ishige, Toyoaki Masukawa, Shuji Kida, Shigeto Hirabayashi
  • Patent number: 4977072
    Abstract: Improved color graininess can be obtained with a color photographic recording material containing in association with a silver halide emulsion layer unit a non-diffusing colored color coupler which, in the coupling position, contains a diffusion-proofing primary ballast group which is attached through an azo group and which is releasable during the color coupling reaction and which coupler gives a hydrophobic dye of limited mobility in the color coupling reaction.
    Type: Grant
    Filed: June 29, 1988
    Date of Patent: December 11, 1990
    Assignee: Agfa-Gevaert Aktiengesellschaft
    Inventors: Gunter Renner, Reinhart Matejec
  • Patent number: 4973546
    Abstract: A light-sensitive silver halide photographic material comprising a magenta coupler represented by the formula I: ##STR1## at least one magenta image stabilizer represented by formula XII: ##STR2## at least one magenta dye image stabilizer selected from a group consisting of a compound represented by general formulas XIIIa and XIIIb: ##STR3##
    Type: Grant
    Filed: July 26, 1988
    Date of Patent: November 27, 1990
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Yutaka Kaneko, Kenzi Kadokura
  • Patent number: 4973535
    Abstract: This invention relates to a color photographic silver halide recording material containing a dye image-forming coupler compound and a sulfonamide compound which is capable of altering the spectral absorption properties of a dye formed by reaction of the coupler compound with oxidized developing agent.
    Type: Grant
    Filed: August 12, 1988
    Date of Patent: November 27, 1990
    Assignee: Eastman Kodak Company
    Inventors: Paul B. Merkel, David J. Giacherio
  • Patent number: 4973545
    Abstract: A photographic coupler containing an aryloxysilyl group (--X--O--Y) wherein X is substituted or unsubstituted arylene and Y is a silyl group) is useful in photographic silver halide elements and processes. Such a photographic coupler enables improved dispersibility and improved photographic properties.
    Type: Grant
    Filed: September 14, 1989
    Date of Patent: November 27, 1990
    Assignee: Eastman Kodak Company
    Inventor: Christopher P. Moore
  • Patent number: 4970142
    Abstract: A silver halide photographic light-sensitive material is disclosed, which contains a novel color forming coupler so that the fastness of dye image formed therein is improved against heat and light. The color forming coupler is represented by the following Formula I or II; ##STR1## wherein R.sub.1, R.sub.2 and Y are independently a hydrogen atom or a substituent; Z is an oxygen atom or a sulfur atom, X is a hydrogen atom or a substituent capable of split off upon reaction with the oxidation product of a color developing agent.
    Type: Grant
    Filed: February 12, 1990
    Date of Patent: November 13, 1990
    Assignee: Konica Corporation
    Inventor: Yutaka Kaneko
  • Patent number: 4968588
    Abstract: A method for processing a silver halide color photographic material is described, which comprises processing a silver halide color photographic material comprising a reflective support having thereon at least one silver halide emulsion layer for a period of 2 minutes and 30 seconds or less with a color devleoping solution which does not substantially contain benzyl alcohol and which contains at least one of compounds selected from the group consisting of a compound represented by formula (I), a compound represented by formula (II), hydantoic acid, allylamine, aminoguanidine, o-aminobenzoic acid, L-(+)-cysteine, benzylamine, DL-serine, morpholine, N-hydroxyethyl morpholine, o-aminobenzyl alcohol, quinuclidine, or salts thereof, tetramethylammonium acetate, choline, or choline chloride, ##STR1## wherein R.sup.1 represents a hydroxyalkyl group having from 2 to 10 carbon atoms; and R.sup.2 and R.sup.
    Type: Grant
    Filed: September 8, 1989
    Date of Patent: November 6, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takatoshi Ishikawa, Morio Yagihara
  • Patent number: 4968594
    Abstract: A negative-working silver halide color photographic material is disclosed which has at least one silver halide emulsion layer on a support, said material including a pyrazolotriazole-based magenta coupler and means for forming an unsharp positive image.
    Type: Grant
    Filed: June 1, 1989
    Date of Patent: November 6, 1990
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Hiroshi Shimazaki, Mitsuto Fujiwhara
  • Patent number: 4965176
    Abstract: There is disclosed a method for processing a light-sensitive silver halide color photographic material, characterized in that the light-sensitive silver halide color photographic material contains a core-shell type-internal latent image type silver halide emulsion a shell of which contains at least silver chloride, and the light-sensitive silver halide color photographic material is processed with a color developing solution containing the compound represented by the following formula (A): ##STR1## wherein R.sub.1 and R.sub.2 each represent a hydrogen atom or an alkyl group having 1 to 5 carbon atoms which may have a substituent or substituents, or R.sub.1 and R.sub.2 may be combined to form a ring, provided that the case where R.sub.1 and R.sub.2 are hydrogen atoms at the same time is excluded.
    Type: Grant
    Filed: August 30, 1988
    Date of Patent: October 23, 1990
    Assignee: Konica Corporation
    Inventors: Masao Ishikawa, Satoru Kuse
  • Patent number: 4962018
    Abstract: A novel photographic development inhibitor releasing coupler (A) comprises a coupler moiety bonded to at least one timing group that enables timing of release of a releasable development inhibitor moiety wherein the releasable development inhibitor moiety contains a --CH.sub.2 --Q group that is bonded directly to the inhibitor moiety and that is a group enabling, upon exposure and processing of a photographic element containing the coupler, reduced interlayer interimage effect without reduced image acutance. The coupler (A) is useful in a color photographic silver halide element and process.
    Type: Grant
    Filed: April 6, 1989
    Date of Patent: October 9, 1990
    Assignee: Eastman Kodak Company
    Inventors: Richard P. Szajewski, Jerrold N. Poslusny, Wojciech Slusarek
  • Patent number: 4960685
    Abstract: A combination in a color photographic silver halide element and process of at least one red-sensitive silver halide emulsion layer comprising a particular naphtholic cyan dye-forming coupler with at least one green-sensitive silver halide emulsion layer comprising a particular pyrazolo[3,2-c]-s-triazole coupler and at least one blue-sensitive silver halide emulsion layer comprising a particular pivaloylacetanilide yellow dye-forming coupler enables improved color saturation of dye images, better relation of speed to grain characteristics and reduced unwanted spectral absorption of dye images formed. This combination is particularly useful in color photographic silver halide materials and processes for forming improved reversal dye images.
    Type: Grant
    Filed: December 20, 1989
    Date of Patent: October 2, 1990
    Assignee: Eastman Kodak Company
    Inventor: Arlyce T. Bowne
  • Patent number: 4960688
    Abstract: A silver halide color photographic material is described comprising a support having thereon at least one silver halide emulsion layer, wherein the silver halide color photographic material contains a water-soluble polymer comprising at least one repeating unit represented by formula (I) ##STR1## wherein A represents a vinyl repeating unit having a color coupler moiety which is capable of forming a dye upon coupling with an oxidation product of an aromatic primary amine developing agent;and at least one repeating unit selected from the group consisting of formulae (II-A), (II-B), (II-C), (II-D), (II-E), and (II-F): ##STR2## The water-soluble polymer is a photographic polymeric coupler incorporating a crosslinkable group with gelatin and the silver halide color photographic material containing the water-soluble coupler is excellent in layer strength and image sharpness.
    Type: Grant
    Filed: February 29, 1988
    Date of Patent: October 2, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kei Sakanoue, Yoshio Ishii, Tsumoru Hirano
  • Patent number: 4959298
    Abstract: A siliver halide color photographic material, comprising at least one of magenta couplers having the following general formula (I) ##STR1## wherein R.sup.1 represents a hydrogen atom or a substituent; X represents a hydrogen atom or a group that can be cleaved by the coupling reaction with the oxidation product of an aromatic primary amine developing agent; Za, Zb and Zc each represents a methine group, a substituted methine, .dbd.N--or --NH--; one of the Za--Zb bond and the Zb--Zc bond is a double bond and the other is a single bond; and Zb-Zc may be fused to an aromatic ring, the coupler may form a dimer or higher polymer via R.sup.1 or X, and when Za, Zb or Zc is a substituted methine, the coupler may form a dimer or higher polymer through the substituted methine, and at least one of compounds having the following general formula (II): ##STR2## wherein M represents a hydrogen atom, an alkali metal atom, a quaternary ammonium group or a group that can be cleaved under an alkaline condition; and R.sub.
    Type: Grant
    Filed: October 7, 1988
    Date of Patent: September 25, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Akio Mitsui, Takashi Ozawa
  • Patent number: 4959300
    Abstract: A silver halide photographic light-sensitive material which is prevented from softening in gradiation of the toe proportion on the resultant characteristics curve during the storage of the material. The photographic material comprises a support having thereon at least one silver halide emulsion layer, and contains a magenta coupler represented by the following formula M-1 and at least one surface active agent having in the molecule thereof at least two groups selected from the group consisting of a carboxy group and salt thereof, a sulfonic group and a salt thereof and a salt of sulfric ester group. ##STR1## wherein Z represents a group of nonmetal atoms necessary for forming a nitrogen-containing heterocycle which may have a substituent group; X represents a hydrogen atom, or a group capable of being split off upon the reaction with the oxydized product of a color developing agent; and R represents a hydrogen atom or a substituent.
    Type: Grant
    Filed: April 12, 1988
    Date of Patent: September 25, 1990
    Assignee: Konica Corporation
    Inventors: Toyoki Nishijima, Kaoru Onodera
  • Patent number: 4952485
    Abstract: A silver halide color negative photographic material having at least one blue-sensitive silver halide emulsion layer, at least one green-sensitive silver halide emulsion layer and at least one red-sensitive silver halide emulsion layer on a support, which is characterized in that the combined total of silver contents in the material is from 3.0 g/m.sup.2 to 8.0 g/m.sup.2 and the specific photographic sensitivity of the material is from 320 to less than 800. The material has improved sharpness and graininess and has high processability including pressure-resistance. Even after stored for long periods of time, the graininess of the material does not deteriorate.
    Type: Grant
    Filed: November 28, 1989
    Date of Patent: August 28, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yoshihiko Shibahara, Yasushi Nozawa, Keiji Mihayashi
  • Patent number: 4950585
    Abstract: A novel cyan color-forming coupler for photographic use is disclosed. The coupler has a improved fastness for heat, humidity, and has a chemical structure represented by the following Formula I; ##STR1## wherein Z is a group of non-metal atoms necessary for completing a nitrogen-containing six-member heterocyclic ring condensed with the pyrazole ring. The six-member ring may be substituted or not substituted provided that the six-member ring does not have be condensed with any ring other than the pyrazole ring; R represents a hydrogen atom or a substituent, and X represents a hydrogen atom or a substituent capable of being split off upon reaction with the oxidized product of a color developing agent.
    Type: Grant
    Filed: August 3, 1988
    Date of Patent: August 21, 1990
    Assignee: Konica Corporation
    Inventors: Kimie Tachibana, Yutaka Kaneko
  • Patent number: 4948722
    Abstract: Novel pyrazoloazole dye-forming couplers comprising (I) at least one polyether group (A) comprising at least two ether (--O--) groups and (II) having between the group (A) and the pyrazoloazole nucleus a linking group (L) that is capable of increasing the reactivity of the coupler to enable improved dye images in a photographic element and process. These couplers are useful in photographic silver halide elements and processes.
    Type: Grant
    Filed: October 31, 1988
    Date of Patent: August 14, 1990
    Assignee: Eastman Kodak Company
    Inventor: John W. Harder
  • Patent number: 4945034
    Abstract: A silver halide photographic light-sensitive material is disclosed, which has excellent characteristics peculiar to pyrazoloazole type magenta couplers and yet good suitability to rapid processing, and shows improvement in the gradiation in respect of softening at the toe portion of characteristic curve thereof without impairment of the image preservability and other photographic properties. The photographic material comprises a support having thereon a silver halide emulsion layer containing a silver halide grain having a silver chloride content of not less than 90 mole %, a compound represented by the following Formula I, and a compound capable of deactivating the oxidized product of a color developing agent with a relative reaction rate of not less than 1.6; ##STR1## wherein R.sub.1, R.sub.2 and R.sub.
    Type: Grant
    Filed: January 24, 1989
    Date of Patent: July 31, 1990
    Assignee: Konica Corporation
    Inventors: Masaki Tanji, Toyoki Nishijima
  • Patent number: 4943518
    Abstract: A direct positive type silver halide color photographic material and an image forming method are disclosed. A green sensitive emulsion layer of the photographic material comprises silver halide grains having at least two peaks on the size distribution curve thereof and the grain size corresponding to the smallest grain size peak among the peaks is not more than 0.3 .mu.m and a magenta coupler represented by the following Formula (M-I); ##STR1## wherein Z is a group of non-metal atoms necessary to complete a nitrogen-containing heterocyclic ring; X is a hydrogen atom or a split-off group and R is a substituent. The photographic material is developed with a color development in the presence of a fogging agent to directly form the positive image after imagewise exposure to light. Thus obtained image is improved in a increased maximum density, lowered minimum density and wider exposure latitude. Stability of gradation with respect to variation of development conditions is also improved.
    Type: Grant
    Filed: December 21, 1988
    Date of Patent: July 24, 1990
    Assignee: Konica Corporation
    Inventors: Tomomi Yoshizawa, Keiji Ogi, Yasuo Tosaka, Kazuya Kuramoto, Yoshiyuki Nonaka
  • Patent number: 4942118
    Abstract: Novel pyrazoloazole couplers comprise an aryl or heterocyclic group having, in at least one of the ortho positions to the carbon atom (A) that is bonded to the pyrazoloazole nucleus, a substituent (B) that enables the pyrazoloazole coupler to form a magenta dye that has increased stability and has absorption controllably shifted, that is shifted hypsochromically relative to a dye formed from a similar coupler lacking substituent (B). These couplers are useful in photogaphic silver halide materials and processes.
    Type: Grant
    Filed: October 13, 1988
    Date of Patent: July 17, 1990
    Assignee: Eastman Kodak Company
    Inventors: Sharon E. Normandin, Arlyce T. Bowne, Nigel E. Milner, David Clarke
  • Patent number: 4942117
    Abstract: Novel pyrazoloazole couplers comprise an aryl or heterocyclic group having, in at least one of the ortho positions to the carbon atom (A) that is bonded to the pyrazoloazole nucleus, a substituent (B) that enables the pyrazoloazole coupler to form a magenta dye that has increased stability and has absorption controllably shifted, that is shifted hypsochromically relative to a dye formed from a similar coupler lacking substituent (B). These couplers are useful in photographic silver halide materials and processes.
    Type: Grant
    Filed: September 26, 1989
    Date of Patent: July 17, 1990
    Assignee: Eastman Kodak Company
    Inventors: Sharon E. Normandin, Arlyce T. Bowne, Nigel E. Milner, David Clarke
  • Patent number: 4939079
    Abstract: Photographic recording materials of which the binder layers consist of protein-like binders which have been hardened in the usual way show reduced susceptibility to the effect of formaldehyde when--in addition to the usual hardeners--low molecular weight monofunctional compounds which are capable of reacting with free primary amino groups of the binder under casting and/or storage conditions without causing additional hardening are allowed to act on the binder.
    Type: Grant
    Filed: February 15, 1989
    Date of Patent: July 3, 1990
    Assignee: Agfa/Gevaert Aktiengessellschaft
    Inventors: Erich Wolff, Hans Langen, Wolfgang Himmelmann, Gunter Helling
  • Patent number: 4935321
    Abstract: This invention relates to a color photographic silver halide recording material containing a dye image-forming coupler compound and a carbonamide compound which is capable of altering the spectral absorption properties of a dye formed by reaction of the coupler compound with oxidized developing agent.
    Type: Grant
    Filed: November 14, 1989
    Date of Patent: June 19, 1990
    Assignee: Eastman Kodak Company
    Inventor: Paul B. Merkel
  • Patent number: 4931383
    Abstract: Silver halide color photographic light-sensitive material is disclosed, which is improved in color reproducibility and in fastness of magenta images to light, heat and humidity. The photographic material a magenta coupler represented by Formula (M-1) and a compound represented by Formula (XI) or Formula (XII). ##STR1## In formulas (XI) and (XII) X.sup.1 is an oxygen atom, a sulfur atom or an --NR.sup.10 --; X.sup.2 represents a hydroxyl sulfur atom; R.sup.6 and R.sup.7 each represent a substituent having a .sigma. p value of not more than -0.25; M represents a metal atom; and a and b each represent an integer of 0 to 3.
    Type: Grant
    Filed: August 1, 1988
    Date of Patent: June 5, 1990
    Assignee: Konica Corporation
    Inventors: Shuichi Sugita, Satoshi Nakagawa, Naoko Shimada
  • Patent number: 4929538
    Abstract: A novel silver halide color photographic material is provided, containing at least one coupler represented by formula (C-I) and at least one compound represented by formula (A-I) or (A-II) ##STR1## wherein Q.sub.1 represents an atomic group containing at least one nitrogen atom required to form a 5- or more membered nitrogen-containing heterocyclic ring together with the carbon atoms to which it is bonded; Z.sub.1 represents a hydrogen atom or a coupling-off group; R.sub.Cl represents an acyl or sulfonyl group; and R.sub.C2 represents a hydrogen atom or a C.sub.1-8 aliphatic group, or the substituents for R.sub.Cl, R.sub.C2, Z.sub.1, or Q.sub.1 form a dimeric or polymeric coupler; ##STR2## wherein R represents a hydrogen atom, an aliphatic group, an aromatic group, a heterocyclic group, or a hydrolyzable protective group; R.sub.1, R.sub.2, R.sub.3, R.sub.4, and R.sub.
    Type: Grant
    Filed: September 29, 1987
    Date of Patent: May 29, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masakazu Morigaki, Kozo Aoki
  • Patent number: 4925781
    Abstract: A silver halide color photographic 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, wherein the silver halide color photographic material contains at least one kind of pyrazoloazole type magenta coupler represented by the general formula (I) described below and the total coating amount of silver in the photographic material is 0.75 g/m.sup.2 or less. ##STR1## wherein R.sup.1 represents a hydrogen atom or a substituent; X represents a hydrogen atom or a group capable of being released upon a coupling reaction with an oxidation product of an aromatic primary amine developing agent; Za, Zb and Zc each represents a methine group, a substituted methine group, .dbd.
    Type: Grant
    Filed: October 14, 1986
    Date of Patent: May 15, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Genichi Furusawa, Takatoshi Ishikawa, Nobuo Furutachi, Takeshi Hirose
  • Patent number: 4921783
    Abstract: A silver halide photographic light-sensitive material is disclosed which comprises a silver halide emulsion layer containing a novel cyan dye-forming coupler. The photographic material is improved in color reproducibility of color images formed thereon. The coupler is represented by the following Formula I. ##STR1## wherein A is an organic group combined with the imidazole ring by a carbon atom, a nitrogen atom, an oxygen atom or a sulfur atom contained in these group; B is an ##STR2## a --L--R.sub.4 group or a ##STR3## in which R.sub.2 and R.sub.3 are each a hydrogen atom or a substituent, provided that R.sub.2 and R.sub.3 are allowed to bind to complete a ring; L is an oxygen atom or a sulfur atom; R.sub.
    Type: Grant
    Filed: June 20, 1989
    Date of Patent: May 1, 1990
    Assignee: Konica Corporation
    Inventors: Noritaka Nakayama, Toyoaki Masukawa
  • Patent number: 4921782
    Abstract: Polymeric magenta couplers containing polymerized units of a carboxyl-containing polymerizable pyrazoloazole coupler corresponding to formula I below give magenta images characterized increased color density Dmax. ##STR1## in this formula, R.sup.1 =H, alkyl, aralkyl or aryl; X=H or a group releasable by coupling; Z.sub.a, Z.sub.b, Z.sub.c =an optionally substituted methine group, .dbd.N-- or --NH--, either the bond Z.sub.a --Z.sub.b or the bond Z.sub.b --Z.sub.c being a double bond and the other bond being a single bond; and at least R.sup.1 or X or a substituent at a methine group Z.sub.a, Z.sub.b or Z.sub.c contains an ethylenically unsaturated polymerizable group in optionally polymerized form and at least R.sup.1 or X or a substituent at a methine group Z.sub.a, Z.sub.b or Z.sub.c contains a carboxyl group.
    Type: Grant
    Filed: May 31, 1988
    Date of Patent: May 1, 1990
    Assignee: Agfa-Gevaert Aktiengesellschaft
    Inventor: Gunter Helling
  • Patent number: 4920042
    Abstract: A color image-forming process of developing a color photographic paper having on a support silver halide emulsion layer(s) containing a monodispersed silver chlorobromide emulsion having a deviation coefficient of not more than 20% and a color coupler, said emulsion being spectrally sensitized by at least one of the compounds represented by general formulae (I), (II), (III) and (IV) defined in this invention, using a color developer containing substantially no benzyl alcohol for a period of time of not more than 2 minutes and 30 seconds.In processing the aforesaid color photographic paper, even when the color paper is procesed using a color developer containing no benzyl alcohol, which caused pollution problems, in a short processing time of not more than 2 minutes and 30 seconds, stable color images having less formation of fog and high color density are obtained.
    Type: Grant
    Filed: August 10, 1989
    Date of Patent: April 24, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kokichi Waki, Masahiro Asami, Yoshinori Shibata
  • Patent number: 4916051
    Abstract: A silver halide color photographic light-sensitive material containing an improved cyan dye-forming coupler is disclosed. The cyan dye-forming coupler is selected from pyrazoloazole compounds, pyrazolotriazole compounds and benzpyrazolotriazole compound represented by Formulas [I] through [VI] as disclosed in the description.
    Type: Grant
    Filed: April 5, 1988
    Date of Patent: April 10, 1990
    Assignee: Konica Corporation
    Inventors: Kimie Tachibana, Yutaka Kaneko
  • Patent number: 4916050
    Abstract: A silver halide light-sensitive photographic material comprising on a support photographic component layers containing a compound of Formula [I] and/or Formula [II]:R.sub.1 OOC--R.sub.2 --COO--R.sub.3 --OOC--R.sub.2 --COO).sub.n R.sub.4 [I],R.sub.5 O--R.sub.6 --OOC--R.sub.7 --COO--R.sub.6).sub.n OR.sub.8 [II]wherein R.sub.1 and R.sub.4 are independently selected from the group consisting of an alkyl group, an alkenyl group, a cycloalkyl group, an aryl group and a heterocyclic group; R.sub.2, R.sub.3, R.sub.6 and R.sub.7 are divalent groups independently selected from the group consisting of an alkylene group, an alkenylene group, a cycloalkylene group and a group of any combination of these groups; R.sub.5 and R.sub.6 each is either an acyl group or a phosphonyl group; and n is an integer of from 1 to 20; is disclosed.
    Type: Grant
    Filed: May 25, 1988
    Date of Patent: April 10, 1990
    Assignee: Konica Corporation
    Inventors: Toyoki Nishijima, Kaoru Onodera
  • Patent number: 4914008
    Abstract: There is disclosed a processing method of a light-sensitive silver halide color photographic material comprising, in a method of processing a light-sensitive silver halide color photographic material with a bleach-fixing solution after color developing, and successively with a stabilizing solution substituted for water washing, said bleach-fixing solution contains as main components an organic acid ferric complex salt with which a molecular weight of a free acid being not more than 280, a thiosulfate and a sulfite, and a processing time by said stabilizing solution substituted for water washing is 2 minutes or shorter.
    Type: Grant
    Filed: December 8, 1988
    Date of Patent: April 3, 1990
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Masayuki Kurematsu, Shigeharu Koboshi
  • Patent number: 4914007
    Abstract: An image forming process is disclosed, which comprises, in the photographic processing of silver halide color photographic materials, processing the color photographic material having a swelling degree of the photographic layer(s) of from 1.5 to 4.0 in the water washing step for the total water washing processing time of from 30 to 90 seconds. According to the process of the invention, the storage stability of color images obtained after processing and/or after lapsing a time does not reduce even when the water washing processing time is shortened.
    Type: Grant
    Filed: November 7, 1988
    Date of Patent: April 3, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yoshihiro Fujita, Takatoshi Ishikawa
  • Patent number: 4912027
    Abstract: A silver halide photographic light-sensitive material which comprises at least one of 1H-pyrazolo[5,1-Cl-1,2,4-triazole-type magenta couplers substituted by a compound having the following Formula [I] in the third position and at least one of these compounds having the following Formulas [II], [III] and [IV];--R.sup.1 --SO.sub.2 --R.sup.2 Formula [I]wherein R.sup.1 is an alkylene group having not less than three carbon atoms in the straight-chain portion which serves as an linkage group between the third-position carbon of the 1H-pyrazolo[5,1-Cl-1,2,4-triazole and the --SO.sub.2 --, and R.sup.2 is an alkyl group, a cycloalkyl group, or aryl group; ##STR1## In Formula [II], Formula [III] and formula [IV], M is a metallic atom; X.sup.1 and X.sup.2 each is an oxygen atom, a sulfur atom, or a --NR.sup.7 --(wherein R.sup.7 is a hydrogen atom, an alkyl group, an aryl group or a hydroxyl group); X.sup.3 is a hydroxyl group or a mercapto group; Y is an oxygen atom or a sulfur atom; R.sup.3, R.sup.4, R.sup.5 and R.
    Type: Grant
    Filed: October 24, 1988
    Date of Patent: March 27, 1990
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Toyoki Nishijima, Kaoru Onodera
  • Patent number: 4912024
    Abstract: Photographic elements are disclosed having a first coupler represented by the formula:COUP.sub.1 --T--INH--CH.sub.2 --QwhereinCOUP.sub.1 is a coupler moiety,T is a timing group that is bonded to the coupler moiety at a coupling position and that is cleaved from --INH--CH.sub.2 --Q after it is released from the coupler moiety upon exposure and processing of the element, andINH--CH.sub.2 --Q is a development inhibitor moiety wherein Q is a ballasting group, anda second coupler represented by the formula:COUP.sub.2 --(TIME).sub.n --S--R.sub.1 --R.sub.2wherein COUP.sub.2 is a coupler moiety, TIME is a timing group, n is 0 or 1, R.sub.1 is a divalent linking group that does not include a heterocyclic ring attached directly to S, and R.sub.2 is a water solubilizing group.
    Type: Grant
    Filed: June 21, 1988
    Date of Patent: March 27, 1990
    Assignee: Eastman Kodak Company
    Inventors: Drake M. Michno, Richard P. Szajewski, Stephen P. Singer
  • Patent number: 4910126
    Abstract: A light-sensitive silver halide photographic material comprising a support and provided thereon a silver halide emulsion layer containing a magenta dye-forming coupler represented by formula (M-I) and a compound represented by formula (I): ##STR1## wherein Z represents a group of non-metal atoms necessary to complete a nitrogen-containing heterocylic ring which may have a substituent; X represents a hydrogen atom or a substituent capable of being split off upon reaction with the oxidized product of a color developing agent; and R represents a hydrogen atom or a substituent; ##STR2## wherein R.sup.1, R.sup.2 and R.sup.3 independently represent an aliphatic group or an aromatic group; and l, m, n independently represent 0 to 1 provided that l, m and n are not 1 at the same time is disclosed.
    Type: Grant
    Filed: April 7, 1988
    Date of Patent: March 20, 1990
    Assignee: Konica Corporation
    Inventors: Hirokazu Sato, Shigeto Hirabayashi
  • Patent number: 4910124
    Abstract: A color image-forming process is described, which comprises developing with a color developing solution containing an aromatic primary amine developing agent a silver halide color photographic material containing at least on pyrazoloazole coupler represented by formula (Ia) or (Ib) ##STR1## wherein R.sub.1, R.sub.1 ', R.sub.3, Za, and Zb are defined in the specification. The image-forming process of the invention provides a silver halide color photographic material having high maximum color density, showing high coloring speed, and forming color images excellent in fastness. Further, the process of the invention can reveal the above-described excellent properties using a color developing solution containing substantially no benzyl alcohol.
    Type: Grant
    Filed: November 25, 1988
    Date of Patent: March 20, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Nobuo Furutachi
  • Patent number: 4910127
    Abstract: A silver halide color photographic light-sensitive material is disclosed, which has excellent rapid processability and is remarkably improved in spectral absorption characteristics and fastness against light of magnet images. The photographic material comprising a support bearing at least one silver halide emulsion layer thereon, and the silver halide emulsion layer containssilver halide grains each containing silver chloride in an amount of not less than 80 mol %, andat least one couplers selected from the group consisting of the couplers represented by the following General Formulas (a), (b) and (c), respectively, or a polymer coupler comprising said coupler, and an anti-discoloring agent, each dispersed in the silver halide emulsion layer by making use of a high boiling organic solvent, provided that a proportion of said high boiling organic solvent to said coupler is not less than 0.6 by weight.
    Type: Grant
    Filed: October 28, 1988
    Date of Patent: March 20, 1990
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Masao Sakaki, Kaoru Onodera
  • Patent number: 4906559
    Abstract: There is disclosed a light-sensitive silver halide photographic material which comprises a magenta coupler represented by the formula (I), a compound represented by the formula (XI), and further at least one compound selected from the group consisting of the compounds represented by the formulae (XII), (XIII) and (XIV): ##STR1## wherein Z, X and R have the same meanings as defined in the specification, ##STR2## wherein R.sub.21 to R.sub.25, A and X have the same meanings as defined in the specification, ##STR3## wherein R.sub.26 to R.sub.45 and J have the same meanings as defined in the specification.
    Type: Grant
    Filed: July 21, 1989
    Date of Patent: March 6, 1990
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Toyoki Nishijima, Kaoru Onodera
  • Patent number: 4906555
    Abstract: A multilayer silver halide color photographic material comprising a reflective support and a blue-, green- and red-sensitive emulsion layer containing at least one yellow coupler (represented by the general formula (I)), magenta coupler (represented by the general formula (II)), and cyan coupler (represented by the general formula (III)), respectively, and the blue-sensitive emulsion layer also contains at least one compound represented by the general formulae (A) or (B), all compounds are as disclosed in the specification.
    Type: Grant
    Filed: November 3, 1988
    Date of Patent: March 6, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takeshi Hirose, Nobuo Furutachi, Masakazu Morigaki
  • Patent number: 4900655
    Abstract: A silver halide color photographic light-sensitive material comprising a support having provided thereon at least one silver halide emulsion layer, wherein at least one magenta coupler represented by the formula ##STR1## where the groups in the formula are defined in the specification; is dispersed in the silver halide emulsion layer in the presence of at least one high-boiling organic solvent represented by one of the formulae (II), (III), (IV) and (V): ##STR2## where the groups in the formulae are described in the specification. The a high boiling point organic solvent has a dielectric constant of not less than 4.00 at 25.degree. C. and 10 KHz.
    Type: Grant
    Filed: November 27, 1987
    Date of Patent: February 13, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kiyoshi Nakazyo, Takeshi Hirose, Genichi Hurusawa, Osamu Takahashi, Nobuo Furutachi, Hidetoshi Kobayashi
  • Patent number: 4898811
    Abstract: A color photographic silver halide material which, in at least one silver halide emulsion layer, contains a magenta coupler corresponding to formula I or (II) below ##STR1## in which R.sub.1 represents alkyl, aryl or a ballast group,R.sub.2 represents a ballast group, alkyl or aryl,Z represents hydrogen or a group releasable on reaction with the developer oxidation product,and a compound corresponding to formula (III) ##STR2## in which R.sub.3 represents alkyl, alkoxy, aryl, optionally substituted amino or the residue of a heterocycle,R.sub.4 represents COR.sub.5, NHR.sub.6, S(O).sub.n R.sub.7,K.sub.5 represents OR.sub.8, NHR.sub.8, alkyl, aryl or a heterocycle,R.sub.6 represents SO.sub.2 R.sub.8, COR.sub.8 or CONHR.sub.8,R.sub.7 represents alkyl, aryl or NHR.sub.3,R.sub.8 represents alkyl or aryl andn=0, 1 or 2,with the exception of compounds in which R.sub.3 is a carboxymethoxyphenyl, carboxymethoxy, alkoxycarbonylmethoxy or alkoxycarbonylmethoxyphyl radical substituted at the methylene group.
    Type: Grant
    Filed: December 2, 1988
    Date of Patent: February 6, 1990
    Assignee: Agfa-Gevaert Aktiengesellschaft
    Inventors: Erich Wolff, Dieter Lowski, Harry Elias
  • Patent number: 4894322
    Abstract: A light-sensitive silver halide color photographic material having photographic constituent layers including a blue-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer and a red-sensitive silver halide emulsion layer on a support, wherein the content of silver bromide of the silver halides in the green-sensitive silver halide emulsion layer and red-sensitive silver halide emulsion layer is 5 to 65 mole %, and the green-sensitive silver halide emulsion layer contains at least one of the compounds represented by the formula shown below: ##STR1## wherein X represents a halogen atom or a monovalent organic group eliminable through coupling reaction with an oxidized product of a developing agent; R.sub.1 to R.sub.
    Type: Grant
    Filed: February 20, 1986
    Date of Patent: January 16, 1990
    Assignee: Konica Corporation
    Inventors: Shigeto Hirabayashi, Syoji Matsuzaka, Yukio Ohya, Yoshiyuki Nonaka
  • Patent number: 4892809
    Abstract: A silver halide color photographic material having at least one silver halide emulsion layer on a base, in which the emulsion layer contains at least one kind of specific magenta coupler of a pyrazoloazole system and the silver halide emulsion is a silver chlorobromide emulsion or silver chloroiodobromide emulsion chemically sensitized in the presence of a nucleic acid or a decomposition product thereof prior to the completion of chemical sensitization by sulfur compounds. This color photographic material is improved in color reproduction and image stability, less liable to fogging that is formed during development, and less dependent on processing conditions.
    Type: Grant
    Filed: May 11, 1989
    Date of Patent: January 9, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Yasuhito Momoki
  • Patent number: 4892805
    Abstract: Novel pyrazoloazole dye-forming couplers containing at least one polyether group (A) comprising at least three ether (--O--) groups and terminated by a hydroxy, carboxy or sulfonamido group enables increased reactivity of the coupler in a photographic element and process. The couplers are useful in color photographic silver halide materials and processes.
    Type: Grant
    Filed: October 31, 1988
    Date of Patent: January 9, 1990
    Assignee: Eastman Kodak Company
    Inventors: Arlyce T. Bowne, Robert F. Romanet, Sharon E. Normandin
  • Patent number: 4882266
    Abstract: A silver halide color photographic material comprising a support having coated thereon at least one silver halide emulsion layer, in which said silver halide emulsion layer or a layer adjacent thereto contains a pyrazoloazole magenta coupler having at least one substituted alkyl group represented by the formula (I): ##STR1## wherein [A] represents a pyrazoloazole magenta coupler residual group; R.sup.1 is an alkyl group; R.sup.2 and R.sup.3 each is a hydrogen atom or a substituent, provided that both R.sup.2 and R.sup.3 are not hydrogen atoms at the same time; and n is 1, 2 or 3.
    Type: Grant
    Filed: February 7, 1989
    Date of Patent: November 21, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Toshio Kawagishi, Kiyoshi Nakazyo
  • Patent number: H782
    Abstract: A silver halide color photographic material in disclosed which comprises a support having thereon at least one silver halide emulsion layer, wherein the photographic material contains at least one compound represented by general formula (I) and at least one compound represented by general formula (II) in combination:Cp--(TIME).sub.n --X--Dye (I)wherein Cp represents a coupler residue capable of releasing --(TIME).sub.n --X--Dye upon coupling with an oxidation product of an aromatic primary amine developing agent; TIME represents a timing group; n represents 0 or a positive integer; Dye represents a dye residue, and X represents an auxochromic group of said dye; ##STR1## wherein R represents a hydrogen atom or a substituent; Y represents a hydrogen atom or a coupling-off group; Za, Zb and Zc each represents a methine group, a substituted methine group, .dbd.
    Type: Grant
    Filed: September 14, 1987
    Date of Patent: May 1, 1990
    Inventors: Mitsunori Ono, Koji Tamoto, Yoshisada Nakamura, Shingo Sato
  • Patent number: H809
    Abstract: A method for processing a silver halide color photographic material containing at least one pyrazoloazole magenta coupler represented by general formula (I), which comprises processing the light-sensitive material, after imagewise exposure, with a color developer containing an aromatic primary amine color developing agent and at least one member selected from among hydrazines and hydrazides represented by general formula (II): ##STR1## wherein R.sub.11 represents a hydrogen atom or a substituent, X represents a hydrogen atom or a group capable of being eliminated by a coupling reaction with an oxidation product of an aromatic primary amine developing agent, Za, Zb and Zc each represents a methine group, a substituted methine group, .dbd.N-- or --NH--, provided that one of the Za-Zb bond and the Zb-Zc bond is a double bond and the other is a single bond and, when Zb-Zc is a carbon-to-carbon double bond, it may be a part of an aromatic ring, and a dimer or higher polymer may be formed at R.sub.
    Type: Grant
    Filed: January 23, 1989
    Date of Patent: August 7, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kazuto Andoh, Takatoshi Ishikawa, Hiroshi Fujimoto, Morio Yagihara
  • Patent number: H851
    Abstract: A silver halide color photographic material which contains at least one coupler represented by the general formula (I) or (II-A) and at least one compound represented by the following general formula (III) in the same light-sensitive silver halide layer: ##STR1## wherein R.sub.1 represents an alkyl group, an aryl group, or a heterocyclic group; R.sub.2 represents a hydrogen atom, or a substituent group; and X represents a hydrogen atom, or a coupling-off group; ##STR2## wherein R represents a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, an oxy radical, or a hydroxyl group; R.sub.3, R.sub.4, R.sub.5 and R.sub.6, which may be the same or different, each represents a hydrogn atom, or an alkyl group; and A represents a nonmetallic atomic group necessary for forming a 5-, 6- or 7-membered ring; provided that R.sub.3 may be linked with R.sub.4, R.sub.5 may be linked with R.sub.6, R may be linked with R.sub.3, or R.sub.3 may be linked with A to form a 5- or 6-membered ring.
    Type: Grant
    Filed: December 8, 1988
    Date of Patent: November 6, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hideaki Naruse, Masakazu Morigaki, Nobuo Seto