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公开(公告)号：US5132202A
公开(公告)日：1992-07-21
申请号：US575419
申请日：1990-08-30
Applicant: Toyoki Nishijima , Masaki Tanji
Inventor： Toyoki Nishijima , Masaki Tanji
CPC classification number: G03C7/301
Abstract: A silver halide color photographic light-sensitive material having an improved light-fastness of magenta dye image is disclosed. The photographic material has a silver halide emulsion layer containing a magenta coupler represented by the following formula [I], a compound by the following formula [II] and a compound represented by the following formula [III]: ##STR1##
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公开(公告)号：US5112728A
公开(公告)日：1992-05-12
申请号：US587736
申请日：1990-09-25
Applicant: Masaki Tanji , Toyoki Nishijima , Takahiro Ogawa , Shun Takada , Kazuhiro Murai
Inventor： Masaki Tanji , Toyoki Nishijima , Takahiro Ogawa , Shun Takada , Kazuhiro Murai
IPC: G03C7/30
CPC classification number: G03C7/3022 , G03C7/3005 , G03C2200/27 , G03C7/38 , Y10S430/106 , Y10S430/132
Abstract: A silver halide photographic light-sensitive material comprising a support having thereon a photographic silver halide emulsion layer containing a magenta coupler, a photographic silver halide emulsion layer containing a yellow coupler, a photographic silver halide emulsion layer containing a cyan coupler and an non-light-sensitive layer containing a binder and a UV absorbent, wherein said silver halide photographic light-sensitive material has not more than 7.6 g/m.sup.2 of gelatin, said UV absorbent is liquid at an ordinary temperature, and said magenta coupler is a compound represented by Formula I; ##STR1## wherein Z represents a non-metallic group necessary to form a nitrogen-containing heterocyclic ring, X represents a hydrogen atom or a group capable of being split upon reaction with an oxidation product of a color developing agent, and R represents a hydrogen atom or a substituent.
Abstract translation: 一种卤化银照相感光材料，其包括其上具有包含品红色成色剂的照相卤化银乳剂层的支持体，含有黄色成色剂的照相卤化银乳剂层，含有青色成色剂的照相卤化银乳剂层和非光 含有粘合剂和UV吸收剂的感光层，其中所述卤化银照相感光材料具有不超过7.6g / m 2的明胶，所述紫外线吸收剂在常温下为液体，所述品红成色剂为由 公式I 式I其中Z表示形成含氮杂环所必需的非金属基团，X表示氢原子或与彩色显影剂的氧化产物反应时可分裂的基团，R表示 氢原子或取代基。
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公开(公告)号：US5024932A
公开(公告)日：1991-06-18
申请号：US489748
申请日：1990-02-26
Applicant: Masaki Tanji , Toyoki Nishijima
Inventor： Masaki Tanji , Toyoki Nishijima
CPC classification number: G03C1/047 , G03C1/005 , G03C1/035 , G03C2001/0471
Abstract: A light-sensitive silver halide photographic material having a support and, provided thereon, photographic component layers including at least one light-sensitive silver halide emulsion layer containing silver halide grains having a silver chloride content of not less tha 90 mole % and having been subjected to gold sensitization, said photographic component layer containing a gelatin of which isoelectric point being 4.0 to 5.0 and the film pH of said photographic component layer being not more than 6.0.
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公开(公告)号：US4954431A
公开(公告)日：1990-09-04
申请号：US370814
申请日：1989-06-23
Applicant: Toyoki Nishijima , Masaki Tanji
Inventor： Toyoki Nishijima , Masaki Tanji
CPC classification number: G03C7/3924 , G03C7/3012
Abstract: A silver halide photographic material containing a specific magenta coupler and a heterocyclic mercapto compound is disclosed. The photographic material is raised in its resistivity to magenta fogging caused by contamination of developer with bleaching solution, without degradation of color reproducibility. The photographic material is comprised of a support having thereon a silver halide emulsion layer and a non-light-sensitive layer and the emulsion layer contains a magenta coupler represented by the following Formula I and at least one of the emulsion layer and the non-light-sensitive layer contains a compound represented by the following formula S. ##STR1##
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公开(公告)号：US5082766A
公开(公告)日：1992-01-21
申请号：US517361
申请日：1990-05-01
Applicant: Toyoki Nishijima , Masaki Tanji , Noboru Mizukura , Shuichi Sugita
Inventor： Toyoki Nishijima , Masaki Tanji , Noboru Mizukura , Shuichi Sugita
CPC classification number: G03C7/301 , G03C7/3924
Abstract: A silver halide color photographic light-sensitive material is disclosed. The light-sensitive material comprises a greensen-sitive silver halide emulsion layer which contains a coupound represented by the following formula T and a magenta coupler represented by the following formula M-I: ##STR1## in formula T, R.sub.1 and R.sub.2 each is a hydrogen atom or an alkyl group; R.sub.3 and R.sub.4 each is a hydrogen atom, an alkyl group, an aryl group or a heterocyclic group; R.sub.5 and R.sub.6 each is a hydrogen atom, an alkyl group, an aryl group, an acyl group or an alkoxycarbonyl group; X is a divalent group including a carbon atom as the component of the 6-member ring of formula T; and n is an integer of zero, 1 or 2. In formula M-I, Z is a group of non-metal atoms necessary to form a nitrogen-containing heterocyclic ring; Xs is a hydrogen atom or a splitting off substitutent; and R.sub.9, R.sub.10 and R.sub.11 each is a hydrogen atom or a substituent provided that two or three groups represented by R.sub.9 to R.sub.11 are not hydrogen atoms at the same time. The light-sensitive material is improved in the light fastness of magenta image and prevented in formation of yellow stain in no image formed area.
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Patent Agency Ranking
公开(公告)号：US4945034A
公开(公告)日：1990-07-31
申请号：US301612
申请日：1989-01-24
Applicant: Masaki Tanji , Toyoki Nishijima
Inventor： Masaki Tanji , Toyoki Nishijima
CPC classification number: G03C7/3825
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.3 each represent a substituent other than hydrogen atom, which may be the same as or different from each other; Z represents a group of non-metal atoms necessary for completing a heterocyclic ring which may have a substituent; X represents a hydrogen atom or a group capable of being split off upon reaction with the oxidized product of a color developing agent.
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公开(公告)号：US5110718A
公开(公告)日：1992-05-05
申请号：US627620
申请日：1990-12-12
Applicant: Masaki Tanji , Toyoki Nishijima
Inventor： Masaki Tanji , Toyoki Nishijima
CPC classification number: G03C7/384 , G03C7/3012
Abstract: A silver halide photographic light-sensitive material comprising a support having thereon a photographic silver halide emulsion layer is disclosed. The silver halide emulsion layer contains a magenta coupler represented by Formula I, a compound represented by Formula II and at least one compound selected from the group of compounds represented by Formula III and Formula IV; ##STR1##
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公开(公告)号：US5077188A
公开(公告)日：1991-12-31
申请号：US473340
申请日：1990-02-01
Applicant: Masaki Tanji , Toyoki Nishijima , Hirokazu Sato , Tomomi Yoshizawa
Inventor： Masaki Tanji , Toyoki Nishijima , Hirokazu Sato , Tomomi Yoshizawa
Abstract: A silver halide photographic light-sensitive material is disclosed, which is improved in stability of cyan dye image formed therein. The light-sensitive material comprises a support having thereon a silver halide emulsion layer containing oleophilic dispersed particles. The particles comprises a cyan coupler represented by the following Formula I, an organic solvent selected from phthalic esters having a dielectrical constant of not more than 6.0 and a polymer compounds which is insoluble in water and soluble in a organic solvent: ##STR1## wherein R.sub.1 is a ballast group, R.sub.2 is an alkyl group having 2 or more carbon atoms and Z.sub.1 is a hydrogen atom or a substituent capable of splitting off upon reaction with the oxidation product of a color developing agent.
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公开(公告)号：US5091294A
公开(公告)日：1992-02-25
申请号：US509879
申请日：1990-04-16
Applicant: Toyoki Nishijima , Masaki Tanji
Inventor： Toyoki Nishijima , Masaki Tanji
CPC classification number: G03C7/3013 , G03C7/3924 , G03C7/3928
Abstract: A silver halide color photographic material that has at least one silver halide emulsion layer on a support, which emulsion layer contains a compound represented by the following general formula (T) and a yellow coupler represented by the following general formula (Y-I): ##STR1## (where R.sub.1 and R.sub.2 are each a hydrogen atom or an alkyl group; R.sub.3 and R.sub.4 are each a hydrogen atom, an alkyl group, an aryl group or a heterocyclic group; R.sub.5 and R.sub.6 are each a hydrogen atom, an alkyl group, an aryl group, an acyl group or an alkoxycarbonyl group; X is a divalent group having a carbon atom as a constituent atom of the 6-membered ring; and n is 0, 1 or 2): ##STR2## (where R'.sub.1 is an alkyl group or a cycloalkyl group; R'.sub.2 is an alkyl group, a cycloalkyl group, an acyl group or an aryl group; R'.sub.3 is a group capable of substitution on the benzene ring; n' is 0 or 1; Y' is a monovalent ballast group, and Z' is a hydrogen atom or an atom or group that are capable of being eliminated upon coupling).
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10.发明授权Silver halide light-sensitive photographic material forming a dye image of enhanced light fastness 失效卤化银感光感光材料形成染色图像，具有增强的耐光性
公开(公告)号：US5049482A
公开(公告)日：1991-09-17
申请号：US400079
申请日：1989-08-29
Applicant: Toyoki Nishijima , Masaki Tanji
Inventor： Toyoki Nishijima , Masaki Tanji
CPC classification number: G03C7/39232
Abstract: A silver halide photographic light-sensitive material improved in fastness to light of the color image formed thereon. The photographic material comprises a support and a silver halide emulsion layer containing a dye-forming coupler, a compound represented by the following Formula I, and a compound represented by the following Formula II: ##STR1## wherein R.sub.1 and R.sub.2 each represents a straight or branched chain alkyl group having 1 to 4 carbon atoms or a straight of branched chain alkenyl group having 1 to 4 carbon atoms; R.sub.5 and R.sub.6 each represents a straight or branched chain alkyl group having 5 to 18 carbon atoms or a straight of branched chain alkenyl group having 5 to 18 carbon atoms; and R.sub.3, R.sub.4, R.sub.7 and R.sub.8 each represents a straight or branched chain alkyl group having 4 to 8 carbon atoms.
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