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: 5672722
    Abstract: A silver halide color photographic material comprising a support having thereon at least one layer containing at least one compound represented by formula (A) ##STR1## wherein the definition of R.sub.a1, R.sub.a2, R.sub.a3, Z, Y, m and n is described in the specification.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: September 30, 1997
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Nobuo Seto, Yasuhiro Yoshioka, Masakazu Morigaki
  • Patent number: 5667951
    Abstract: A silver halide color photographic material is disclosed which comprises a support having provided thereon at least one photographic layer containing: (i) at least one yellow dye-forming coupler represented by formula (I); and (ii) a compound represented by formula (IV), or an oligomer or polymer comprising a moiety of the compound represented by formula (IV): ##STR1## wherein R.sub.1 and R.sub.2 each independently represents an aliphatic oxy group, an aliphatic group, an aryloxy group, an aryl group, an aliphatic amino group, or an anilino group; R.sub.3 represents a hydrogen atom, an aliphatic group, or an aryl group; and Q represents a dye-forming coupler residue capable of forming a yellow dye by undergoing a coupling reaction with an oxidation product of a developing agent;R.sub.31 CON(R.sub.32)R.sub.33 (IV)wherein R.sub.31, R.sub.32, and R.sub.33 each independently represents a hydrogen atom, an aliphatic group, or an aryl group; provided that the sum of the carbon atom numbers of R.sub.31, R.sub.
    Type: Grant
    Filed: March 5, 1996
    Date of Patent: September 16, 1997
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hiroo Takizawa, Takeshi Nakamine, Yasuhiro Yoshioka, Masakazu Morigaki
  • Patent number: 5667959
    Abstract: A silver halide photographic material is disclosed, which comprises a support having thereon at least one light-sensitive silver halide emulsion layer, wherein said silver halide photographic material contains at least one compound represented by the following formula (I): ##STR1## wherein R.sup.1 represents a substituted or unsubstituted alkyl group having from 1 to 6 carbon atoms; and R.sup.2 represents a branched alkyl group having 20 or more carbon atoms, a straight chain or branched alkenyl group having 17 or more carbon atoms, or a substituted alkyl or substituted alkenyl group substituted with at least one substituent selected from the group consisting of an alkoxycarbonyl group, an alkenoxycarbonyl group, an aryloxycarbonyl group, a carbamoyl group, an acyl group, an alkoxyl group, an alkylthio group, an arylthio group, an alkylsulfonyl group, an arylsulfonyl group, an aryl group and a heterocyclic group, and having 12 or more carbon atoms in total.
    Type: Grant
    Filed: August 24, 1995
    Date of Patent: September 16, 1997
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hisashi Mikoshiba, Hiroo Takizawa, Junichiro Hosokawa, Yoshio Ishii, Keiji Mihayashi, Masakazu Morigaki
  • Patent number: 5612174
    Abstract: Disclosed are a photographic yellow dye-forming coupler of formula (I) and a photographic material containing one or more such yellow couplers. ##STR1## wherein R.sub.1 represents an alkyl group, a cycloalkyl group, an aryl group, an alkylamino group, an anilino group, or a heterocyclic group; R.sub.2 represents a hydrogen atom, a halogen atom, an aliphatic-oxy group, an aryloxy group, an aliphatic group, or an amino group; R.sub.3 represents an alkenyl group; R.sub.4 represents a substituent; m represents an integer of from 0 to 3; and X represents a hydrogen atom, or a group capable of being split off from the formula by the coupling reaction with an oxidation product of an aromatic primary amine developing agent. The couplers have a high solubility in solvents, and emulsions containing the couplers can be stored in cool for a long period of time without worsening the coloring property of the couplers.
    Type: Grant
    Filed: December 7, 1995
    Date of Patent: March 18, 1997
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hiroo Takizawa, Yasuhiro Yoshioka, Masakazu Morigaki
  • Patent number: 5597682
    Abstract: A silver halide color photographic material is described, which comprises a support having thereon at least one photographic layer, wherein at least one of said photographic layers contains at least one radical scavenger, and the support comprises a poly(alkylene aromatic dicarboxylate) whose glass transition point is from 50.degree. to 200.degree. C. and has been subjected to a heat treatment at a temperature of lower than the glass transition point thereof and not lower than 40.degree. C. either before formation of a subbing layer or after formation of a subbing layer and before formation of a silver halide emulsion layer.
    Type: Grant
    Filed: January 11, 1995
    Date of Patent: January 28, 1997
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yoshio Ishii, Keiji Mihayashi, Masakazu Morigaki
  • Patent number: 5580710
    Abstract: A silver halide color photographic material excellent in color forming property and wet heat image fastness comprising at least one compound represented by formula (I) in any layer formed on a support: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 independently represent branched chain unsubstituted alkyl groups each having 3 to 20 carbon atoms with the proviso that the total carbon number of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 is 16 to 60.
    Type: Grant
    Filed: September 22, 1995
    Date of Patent: December 3, 1996
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hiroo Takizawa, Yasuhiro Yoshioka, Masakazu Morigaki
  • Patent number: 5576151
    Abstract: A processing solution for a silver halide color photographic material, said solution containing at least one kind of compound represented by formula (I) or (III): ##STR1##
    Type: Grant
    Filed: April 21, 1995
    Date of Patent: November 19, 1996
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masakazu Morigaki, Hiroshi Kawamoto, Shigeru Nakamura
  • Patent number: 5576165
    Abstract: A silver halide color photographic material having improved stability with respect to fog and latent images, which contains at least one compound of formula (A) and at least one polymer having repeating units of formula (I) or (II): ##STR1## wherein R.sub.a1 to R.sub.a5 are as defined in the specification ##STR2## wherein R.sup.1 represents a hydrogen atom or an alkyl group; and Q represents a group selected from the group consisting of groups represented by formulae 1) to 4): ##STR3## (wherein the definitions of each symbols are the same as in the application) ##STR4## wherein E represents --COR.sub.21, --COOR.sub.22, --CONHR.sub.23, --CONHCOR.sub.24 or --SO.sub.2 R.sub.25 (wherein R.sub.21, R.sub.22, R.sub.23, R.sub.24 and R.sub.25 each represents an alkyl, aryl or cycloalkyl group, or a hydrogen atom); and G represents an alkylene group.
    Type: Grant
    Filed: January 17, 1996
    Date of Patent: November 19, 1996
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yasushi Nozawa, Masakazu Morigaki
  • Patent number: 5563025
    Abstract: A silver halide color photographic material comprising a support having thereon 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, in which the silver halide color photographic material comprises at least one compound selected from the group consisting of the compounds represented by one of formulas (A-I) to (A-V); and 60% or more of the total projected area of silver halide grains contained in at least one of the light-sensitive silver halide emulsion layers is occupied by tabular grains having an aspect ratio of 2 or more, and the tabular grains have a dislocation line number of 10 or more per one grain.
    Type: Grant
    Filed: January 9, 1995
    Date of Patent: October 8, 1996
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yoshio Ishii, Keiji Mihayashi, Masayuki Negoro, Masakazu Morigaki, Hisashi Mikoshiba
  • Patent number: 5556741
    Abstract: There is disclosed a silver halide photosensitive material having at least one silver halide emulsion layer coated on a support, wherein silver halide grains in the emulsion layer are subjected to reduction sensitization and contain a radical scavenger, prior to the completion of a chemical sensitization. There is also disclosed a silver halide emulsion and a method of manufacturing the same. The said silver halide photosensitive material has a enhanced sensitivity, without causing high fog.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: September 17, 1996
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yoichi Suga, Yoshio Ishii, Masakazu Morigaki
  • Patent number: 5541045
    Abstract: 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: Grant
    Filed: October 17, 1994
    Date of Patent: July 30, 1996
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Osamu Takahashi, Masakazu Morigaki
  • Patent number: 5534390
    Abstract: A silver halide color photographic material comprising a support having thereon at least one layer containing at least one compound represented by formula (A) ##STR1## wherein the definition of R.sub.a1, R.sub.a2, R.sub.a3, Z, Y, m and n is described in the specification.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: July 9, 1996
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Nobuo Seto, Yasuhiro Yoshioka, Masakazu Morigaki
  • Patent number: 5449593
    Abstract: A processing solution for a silver halide color photographic material, said solution containing at least one kind of compound represented by formula (I), (II), or (III); ##STR1## the substituents are defined in the instant specification.
    Type: Grant
    Filed: February 21, 1992
    Date of Patent: September 12, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masakazu Morigaki, Hiroshi Kawamoto, Shigeru Nakamura
  • Patent number: 5429918
    Abstract: A silver halide color photographic material contains at least one hydroxypyridine compound of formulae (A), (B) and (C) in at least one layer on the support: ##STR1## The material is capable of providing a color image having an improved fastness to light.
    Type: Grant
    Filed: August 19, 1993
    Date of Patent: July 4, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Nobuo Seto, Masakazu Morigaki
  • Patent number: 5419996
    Abstract: Disclosed is a color diffusion transfer photosensitive material containing a compound represented by a color diffusion transfer photosensitive material containing at least one compound represented by the following general formula (I): ##STR1## wherein R.sub.1 and R.sub.2 each represent a hydrogen atom, an aliphatic group or an aryl group; and R.sub.3 represents an aliphatic group or a group represented by the following general formula (Ab): ##STR2## wherein R.sub.4 represents a hydrogen atom, an aliphatic group or an aryl group and R.sub.5 represents an aliphatic group, an aryl group or an amino group; and further, R.sub.1 and R.sub.2, R.sub.1 and R.sub.3, R.sub.2 and R.sub.3, or R.sub.4 and R.sub.5 may combine with each other to form a 5- to 7-membered ring, or R.sub.1, R.sub.2 and R.sub.3 may combine with one another to form a bicyclo ring; wherein the total number of carbon atoms contained in R.sub.1, R.sub.2 and R.sub.3 is not smaller than 10, at least either R.sub.1 or R.sub.
    Type: Grant
    Filed: March 17, 1994
    Date of Patent: May 30, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hideaki Naruse, Nobuo Seto, Masakazu Morigaki, Masayuki Negoro
  • Patent number: 5418122
    Abstract: A silver halide color photographic material is disclosed which comprises a support having thereon at least one layer containing at least one compound of the following general formula: ##STR1## wherein R.sub.1 represents a hydrogen atom, an aliphatic group, --C(.dbd.O)--R.sub.7, --S(.dbd.O)2--R.sub.8 or --P(.dbd.O)(R.sub.7)(R.sub.9); R.sub.2 and R.sub.3 each represents --O--R.sub.10, --S--R.sub.10, an acylamino group or an aliphatic group; R.sub.4 represents --C(.dbd.O)--R.sub.11 or a heterocyclic group; R.sub.5 and R.sub.6 each represents a hydrogen atom or a substituent group; R.sub.7 and R.sub.9 each represents an aliphatic group, an aliphatic oxy group, an aryl group or an aryloxy group; R.sub.8 represents an aliphatic group or an aryl group; R.sub.10 represents an aliphatic group or --C(.dbd.O)--R.sub.7 ; and R.sub.11 represents a substituted hydrazino group or a heterocyclic group.
    Type: Grant
    Filed: November 17, 1993
    Date of Patent: May 23, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Nobuo Seto, Yasuhiro Yoshioka, Masakazu Morigaki
  • Patent number: 5411846
    Abstract: A novel silver halide color photographic material comprising a support provided thereon at least one layer containing at least one compound represented by the following general formula (A): ##STR1## In the formula, L.sub.1 represents an alkylene or arylene group; R.sub.1 represents a substituent which can be substituted for a hydrogen of the benzene ring; m represents an integer 2 to 7; and n is 0 or an integer of 1 to 4, with the proviso that when either or both of m and n are at least two, the plurality of L.sub.1 groups and/or R.sub.1 groups may be the same or different, and with the proviso that the compound of formula (A) does not form a polymer via an R.sub.1 group. In a preferred embodiment, at least one compound represented by formula (A) is incorporated into a photographic silver halide emulsion layer.
    Type: Grant
    Filed: July 21, 1993
    Date of Patent: May 2, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Nobuo Seto, Yasuhiro Yoshioka, Masakazu Morigaki
  • Patent number: 5403811
    Abstract: A thermal transfer dye donating material comprising a support having thereon a dye donating layer which contains a thermo-mobile dye, wherein the thermo-mobile dye is a dye which can be represented by the general formula (I) indicated below.A--(L--B).sub.q (I)In this formula, A represents a dye residue which has an absorbance in the visible region and/or infrared region, L represents a divalent linking group or a simple bond, and B represents an atomic grouping which has the effect of suppressing the fading of the dye. Moreover, q is 1 or 2, and when q is 2, L and B may be the same or different.
    Type: Grant
    Filed: August 13, 1993
    Date of Patent: April 4, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hisashi Mikoshiba, Mitsugu Tanaka, Masakazu Morigaki, Seiiti Kubodera
  • Patent number: 5395749
    Abstract: A silver halide color photographic light-sensitive material comprising a support having thereon at least one layer which contains at least one compound represented by the following formula (I): ##STR1## wherein R.sup.1 and R.sup.2 may be the same or different and each independently represents an alkyl group, an aryl group or a heterocyclic group; Ar represents an aryl group; Ar and R.sup.1 may be linked to form a 5- to 7-membered ring but R.sup.2 and Ar or R.sup.1 do not link with each other; and n represents an integer of 0 to 2.
    Type: Grant
    Filed: November 12, 1993
    Date of Patent: March 7, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masayuki Negoro, Hiroo Takizawa, Masakazu Morigaki
  • Patent number: 5362617
    Abstract: A light-sensitive material comprising a support provided thereon at least one layer containing a coupler represented by the following Formula (I): ##STR1## wherein A represents a group represented by the following Formula (a), (b) or (c): ##STR2## wherein the groups are as defined in the specification provided that at least one of the groups represented by A, B and Z has at least one of the partial structures represented by the following Formulas (P-I) to (P-V): ##STR3## wherein the substituent groups are as defined in the specification.
    Type: Grant
    Filed: May 12, 1993
    Date of Patent: November 8, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masakazu Morigaki, Kohzaburoh Yamada, Nobuo Seto, Yasuhiro Yoshioka