Patents by Inventor Masakazu Morigaki

Masakazu Morigaki has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5176989
    Abstract: A silver halide color photographic material comprising a support having thereon at least one silver halide emulsion layer containing an emulsified dispersion of at least one color image forming coupler and at least one organic synthetic polymer, the silver halide color photographic material further containing at least one compound capable of forming a chemical bond with an aromatic amine developing agent or an oxidation product thereof remaining after color development processing to form a chemically inactive and substantially colorless compound in a hydrophilic colloid layer on the support in the same side in which the silver halide emulsion layer is positioned. In the silver halide color photographic material light fading and dark fading are controlled with good balance to provide excellent image preservability.
    Type: Grant
    Filed: March 20, 1991
    Date of Patent: January 5, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masakazu Morigaki, Osamu Takahashi
  • Patent number: 5156945
    Abstract: A silver halide color photographic material comprising a support having thereon at least one silver halide emulsion layer, wherein the photosensitive material contains at least one compound represented by General Formula (I), and at least one type of compound represented by General Formula (II) or an organometallic complex which has copper, cobalt, nickel, palladium or platinum as the central metal and which has at least one bidentate organic ligand, wherein general Formula (I) has the following formula: ##STR1## and general Formula (II) has the following formula:R.sub.10 --W--R.sub.11 (II)wherein the variables are defined in the specification.
    Type: Grant
    Filed: February 21, 1990
    Date of Patent: October 20, 1992
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kazuhiko Matsumoto, Masakazu Morigaki, Shigeo Hirano, Satoshi Nagaoka
  • Patent number: 5139931
    Abstract: A silver halide color photographic material is disclosed having at least one coupler of the following formula (I), at least one compound of the following formula (II), and at least one compound of the following formula (III) in the same layer: ##STR1## wherein the substituent groups are as defined in the specification. The material resists fogging and forms a color image having excellent light-fastness.
    Type: Grant
    Filed: June 20, 1990
    Date of Patent: August 18, 1992
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Nobuo Seto, Masakazu Morigaki
  • Patent number: 5128312
    Abstract: Disclosed is a thermal transfer dye donating material, which has, on a support, a dye donating layer containing a dye of a general formula (I): ##STR1## wherein R.sub.1 represents a hydrogen atom or an alkyl group; R.sub.2 to R.sub.8 each represent a hydrogen atom, an alkyl group, an alkoxy group, a halogen atom, an acylamino group, an alkoxycarbonyl group, a cyano group, an alkoxycarbonylamino group, an aminocarbonylamino group, a sulfonylamino group, a carbamoyl group, a sulfamoyl group or an acyl group; A represents ##STR2## wherein R.sub.9 and R.sub.10, which may be the same or different, each represents a hydrogen atom, an alkyl group or an aryl group; X represents a nitrogen atom or ##STR3## R.sub.11 representing a hydrogen atom, an alkyl group or an aryl group; Y represents a non-metallic atomic group necessary for forming a 5-membered to 7-membered ring; and R.sub.3 and R.sub.4 may optionally be bonded to each other to form a ring; and R.sub.6 and R.sub.9, and/or R.sub.9 and R.sub.10, and/or R.sub.
    Type: Grant
    Filed: July 16, 1991
    Date of Patent: July 7, 1992
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Mitsugu Tanaka, Masakazu Morigaki, Seiiti Kubodera
  • Patent number: 5108876
    Abstract: A color photograph comprising a support having provided thereon at least one photographic layer, wherein said at least one photographic layer contains a storage stability improving compound which forms a chemically inert and substantially colorless compound by combining chemically with the oxidation product of an aromatic amine color developing agent remaining in said color photograph after color development processing.
    Type: Grant
    Filed: March 7, 1990
    Date of Patent: April 28, 1992
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masakazu Morigaki, Nobuo Seto, Osamu Takahashi, Hideaki Naruse
  • Patent number: 5104782
    Abstract: A silver halide color photographic material wherein at least one pyrazoloazole dye forming coupler, at least one compound represented by formula (A) and at least one compound represented by formula (B) are included in the same layer: ##STR1## wherein the substituents are as defined in the specification.
    Type: Grant
    Filed: February 7, 1991
    Date of Patent: April 14, 1992
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Nobuo Seto, Masakazu Morigaki
  • Patent number: 5104781
    Abstract: The present invention relates to a silver halide color photographic light sensitive material having at least one silver halide color photographic light-sensitive emulsion layer on a support which comprises (i) at least one coupler represented by Formula (I), (ii) at least one compound represented by Formula (II), (iii) at least one compound represented by Formula (III), and (iv) at least one high boiling organic solvent represented by Formula (IV), wherein each of the couplers and the compounds represented by Formulas (I) to (IV) are incorporated in the same light sensitive layer, and wherein Formulas (I) to (IV) are shown below. ##STR1## The substituents are defined hereinbelow.
    Type: Grant
    Filed: February 5, 1990
    Date of Patent: April 14, 1992
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Nobuo Seto, Masakazu Morigaki
  • Patent number: 5098805
    Abstract: There is provided a color photograph improved in preservability that has been obtained by making chemically inactive the aromatic amine type color developing agents and their oxidized product that remains in the silver halide photographic materials after color development processing. The color photograph exhibits excellent performance in that its white background can be prevented from discoloring even during long-term storage or display, and deterioration of a dye image caused by the remaining color developing agent being taken into the photographic material after the color development, bleaching, and fixing processes, or due to its oxidized product, can be prevented.
    Type: Grant
    Filed: March 19, 1990
    Date of Patent: March 24, 1992
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Nobuo Furutachi, Osamu Takahashi, Masakazu Morigaki
  • Patent number: 5096805
    Abstract: A silver halide color photographic material containing at least one silver halide emulsion and at least one kind of 5-pyrazolone couplers having the releasable group shown by following formula (I) at the coupling position and at least one kind of the compounds shown by following formula (II): ##STR1## wherein L.sub.1 and L.sub.2 each represents a methylene group or an ethylene group; l and m each represents 0 or 1; R.sub.1 represents a hydrogen atom, an alkyl group, an aryl group, or a heterocyclic group; R.sub.2 represents a group bonded to A by a carbon atom, an oxygen atom, a nitrogen atom or a sulfur atom; A represents a carbon atom or a sulfur atom; n represents 1 when A is a carbon atom, or 1 or 2 when A is a sulfur atom; B represents a carbon atom, an oxygen atom, a nitrogen atom, or a sulfur atom; and X represents an atomic group necessary for forming a ring; said R.sub.1 and R.sub.2 may combine with each other to form a ring; and when B is a carbon atom or a nitrogen atom, said B and R.sub.
    Type: Grant
    Filed: April 5, 1991
    Date of Patent: March 17, 1992
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kozo Aoki, Masakazu Morigaki
  • Patent number: 5068172
    Abstract: A silver halide color photographic material wherein at least one coupler selected from the group consisting of the compounds represented by the following general formulae (I) and (II), at least one compound represented by the following general formula (III) and at least one compound represented by the following general formula (IV) are included in the same layer, ##STR1## wherein the values of R, R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7, R.sub.8, R.sub.9, R.sub.10, R.sub.11, R.sub.12, A and X are defined in the specification. The photographic materials disclosed exhibit outstanding image storage stability, a decreased occurrence of stain in unexposed portions and a decreased occurrence of color fading by light in their magenta image.
    Type: Grant
    Filed: February 20, 1990
    Date of Patent: November 26, 1991
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Nobuo Seto, Masakazu Morigaki, Hideaki Naruse
  • Patent number: 5068171
    Abstract: The present invention relates to a silver halide color photographic light sensitive material comprising a support and at least one silver halide emulsion layer on the support, wherein the material contains (1) at least one 5-pyrazolone coupler represented by formulas (II) or (III): ##STR1## and (2) at least one compound selected from the group consisting of compounds represented by formulas (AI), (AII) and (AIII):R.sub.1 --A--.sub.n X (AI) ##STR2##R--Z (AIII)wherein the substituents are as defined in the text of the specification.
    Type: Grant
    Filed: July 13, 1989
    Date of Patent: November 26, 1991
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masakazu Morigaki, Nobuo Seto
  • Patent number: 5047315
    Abstract: A silver halide color photographic material comprising a support having provided thereon a photographic layer containing:a) at least one compound capable of chemically binding with an aromatic amine developing agent or its oxidation product, which remains after color development processing, to produce a chemically inert and substantially colorless compound andb) at least one of the compounds presented by the following Formulae (I), (II) or (III): ##STR1## wherein X and X' each represents a divalent to hexavalent polyvalent group; n and m each represents an integer of 2 to 6; R represents an aliphatic group; R' represents an aliphatic group or an aromatic group, provided that R or R' existing in the same molecule may be the same or different from each other; R.sub.1, R.sub.2, R.sub.3 and R.sub.
    Type: Grant
    Filed: September 12, 1988
    Date of Patent: September 10, 1991
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masakazu Morigaki, Osamu Takahashi
  • Patent number: 5043460
    Abstract: There is provided a silver halide color photographic material containing a 6-hydroxychroman derivative in combination with a specific coupler, i.e., a 5-pyrazolone type magenta coupler having an -SR group at the coupling position or a 5-pyrazolone type magenta coupler having an anilino group at the 3-position. The photosensitive material provides photographic images, quality of which is prevented from deteriorating as time passes. The photographic color images are free from discoloration or fading and do not form yellow stains on a white background.
    Type: Grant
    Filed: September 25, 1989
    Date of Patent: August 27, 1991
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Nobuo Seto, Masakazu Morigaki, Nobuo Sakai
  • Patent number: 5041365
    Abstract: The present invention provides silver halide color photographic materials having a layer which contains at least one magenta color image-forming oleophilic coupler of the following formulae (I) and/or (II) and at least one of the following formula (III): ##STR1## in which Ar represents a phenyl group which is substituted by at least one substituent selected from the group consisting of a halogen atom, an alkyl group, an alkoxy group, an alkoxycarbonyl group and a cyano group; Y represents an acylamino group or an anilino group; and Z.sub.1 represents a group capable of being removed by coupling, ##STR2## in which X represents a hydrogen atom or a substituent; Z.sub.2 represents a hydrogen atom or a group capable of being removed by coupling;W represents a hydrogen atom, an acyl group or an aliphatic or aromatic sulfonyl group;Za and Zb each represent a methine group, a substituted methine group or --N.dbd.; andX, Z.sub.
    Type: Grant
    Filed: July 19, 1990
    Date of Patent: August 20, 1991
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Osamu Takahashi, Hideaki Naruse, Masakazu Morigaki, Nobutaka Ohki, Nobuo Furutachi
  • Patent number: 5035988
    Abstract: A silver halide color photographic material is described which contains at least one of yellow couplers represented by the following general formula (I) and at least one of compounds represented by the following general formula (A-I): ##STR1## wherein R.sup.1 represents a substituted or unsubstituted N-phenylcarbamoyl group; R.sup.2 represents an alkyl group or an aryl group; X.sup.1 represents a group represented by the following formula (a), (b), (c) or (d): ##STR2## wherein R.sup.3 and R.sup.4, which may be the same or different, each is a hydrogen atom, a halogen atom, a carboxylic acid ester group, an amino group, an alkyl group, an alkylthio group, an alkoxy group, an alkylsulfonyl group, an alkylsulfinyl group, a carboxyl group, a sulfonic acid group or a salt thereof, a substituted or unsubstituted phenyl group or a heterocyclic ring, ##STR3## wherein W.sup.
    Type: Grant
    Filed: May 12, 1989
    Date of Patent: July 30, 1991
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yoshisada Nakamura, Masakazu Morigaki, Yoshio Ishii, Kei Sakanoue
  • Patent number: 5028519
    Abstract: A silver halide color photosensitive material is disclosed. The photosensitive material comprises a support and a photographic layer. According to the present invention, the photographic layer contains a heterocyclic compound. The heterocyclic compound is, for example, represented by the following formula [I]: ##STR1## in which n is 1, 2 or 3; and each of Ra and Rb independently is an acyl group, a sulfonyl group, a sulfinyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, a phosphoryl group, a sulfamoyl group or a carbamoyl group. The other heterocyclic compounds represented by the formulas [II], [III], [IV], [V], and [VI] are also disclosed.
    Type: Grant
    Filed: December 5, 1989
    Date of Patent: July 2, 1991
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masakazu Morigaki, Nobuo Seto
  • Patent number: 5006456
    Abstract: A method for processing a silver halide color photographic light-sensitive material comprises the steps of developing the light-sensitive material with a color developer containing an aromatic primary amine color developing agent, desilvering, washing with water and/or stabilizing the material in which at least one processing solution used in at least one step of the processing contains at least one compound selected from the group consisting of sulfinic acids and salts and precursors thereof. This method makes it possible to effectively prevent the formation of stains due to not only the components of the light-sensitive material per se but also those attributable to the processing solutions, during processing or storage with time, and to enhance the stability of processing solutions.
    Type: Grant
    Filed: June 6, 1988
    Date of Patent: April 9, 1991
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masakazu Morigaki, Takatoshi Ishikawa, Kazuto Andoh, Nobuo Seto, Toshio Koshimizu, Shinji Ueda
  • Patent number: 5004678
    Abstract: A silver halide color photographic material comprising a support having thereon at least one silver halide emulsion layer, the silver halide color photographic material containing at least one pyrazoloazole type coupler represented by general formula (I) described below and at least one compound represented by general formula (II) described below. ##STR1## wherein R.sub.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.N-- or --NH--, one of the Za--Zb bond and the Zb--Zc bond being a double bond and the other being a single bond; when the Zb--Zc bond is carbon-carbon double bond, the Zb-Zc bond may be a part of a condensed aromatic ring; R.sub.
    Type: Grant
    Filed: July 5, 1989
    Date of Patent: April 2, 1991
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Nobuo Seto, Masakazu Morigaki
  • Patent number: 4994359
    Abstract: The present invention relates to a silver halide color photographic light-sensitive material comprising (i) at least one 5-pyrazolone magenta coupler possessing an elimination group represented by general formula (I) in coupling posiitons, and (ii) at least one compound represented by general formula (A): ##STR1## wherein L.sub.1 and L.sub.2 each represents a methylene group or an ethylene group;l and m each represents 0 to 1;R.sub.1 represents a hydrogen atom, an alkyl group, an alkenyl group, an aryl group or a heterocyclic group;R.sub.2 represents a group linked to A by a carbon atom, an oxygen atom, a nitrogen atom or a sulfur atom;A represents a carbon atom or a sulfur atom;n represents 1 when A is a carbon atom, and 1 or 2 when A is a sulfur atom;B represents a carbon atom, an oxygen atom, a nitrogen atom or a sulfur atom;X represents an atomic group necessary for forming a ring;R.sub.1 and R.sub.2 may be mutually bonded and form a ring; and when B is a carbon atom or a nitrogen atom, B and R.sub.
    Type: Grant
    Filed: July 31, 1989
    Date of Patent: February 19, 1991
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masakazu Morigaki, Kiyoshi Nakazyo
  • Patent number: 4983507
    Abstract: The present invention provides silver halide color photographic materials having a layer which contains at least one magenta color image-forming oleophilic coupler of the following formulae (I) and/or (II) and at least one of the following formula (III): ##STR1## in which Ar represents a phenyl group which is substituted by at least one substituent selected from the group consisting of a halogen atom, an alkyl group, an alkoxy group, an alkoxycarbonyl group and a cyano group; Y represents an acylamino group or an anilino group; and Z.sub.1 represents a group capable of being removed by coupling, ##STR2## in which X represents a hydrogen atom or a substituent; Z.sub.2 represents a hydrogen atom or a group capable of being removed by coupling;W represents a hydrogen atom, an acyl group or an aliphatic or aromatic sulfonyl group;Za and Zb each represent a methine group, a substituted methine group or --N.dbd.; andX, Z.sub.
    Type: Grant
    Filed: October 26, 1988
    Date of Patent: January 8, 1991
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Osamu Takahashi, Hideaki Naruse, Masakazu Morigaki, Nobutaka Ohki, Nobuo Furutachi