公开(公告)号：US5100771A

公开(公告)日：1992-03-31

申请号：US657933

申请日：1991-02-15

申请人： Keiji Mihayashi ,  Hirohiko Kato ,  Hidetoshi Kobayashi

发明人： Keiji Mihayashi ,  Hirohiko Kato ,  Hidetoshi Kobayashi

IPC分类号： G03C7/36 ,  G03C1/06 ,  G03C7/305 ,  G03C7/396

CPC分类号： G03C7/30535 ,  G03C7/396

摘要： A silver halide color photographic material comprising a support having thereon at least one silver halide emulsion layer, wherein the silver halide color photographic material contains at least one water-insoluble and organic solvent soluble homopolymer or copolymer and at least one yellow coupler of the formula: ##STR1## wherein R.sub.1 represents a tertiary alkyl group or an aryl group; R.sub.2 represents a hydrogen atom, a halogen atom or an alkoxy group; R.sub.3 represents an alkyl group or an aryl group; and X represents a group capable of being released upon a coupling reaction with an oxidation product of an aromatic primary amine developing agent.The silver halide color photographic material has high sensitivity and excellent sharpness, color reproducibility and preservability, before and after processing, as is free from sweating.

公开(公告)号：US4923790A

公开(公告)日：1990-05-08

申请号：US247565

申请日：1988-09-22

申请人： Hirohiko Kato ,  Keiji Mihayashi ,  Kazuhiro Aikawa

发明人： Hirohiko Kato ,  Keiji Mihayashi ,  Kazuhiro Aikawa

IPC分类号： G03C1/37 ,  G03C7/26

CPC分类号： G03C1/37

摘要： A silver halide photographic material composed of a support having thereon at least one light-sensitive silver halide emulsion layer, wherein the material contains the combination of (i) at least one compound represented by formula (I) and (ii) and at least one compound represented by formulae (II) and/or (III): ##STR1## wherein R.sub.1 represents hydrogen, an alkyl group, an aryl group or an aralkyl group; X represents a halogen atom, a nitro group, a hydroxyl group, a cyano group, a lower alkyl group, a lower alkoxy group, --COR.sub.2, ##STR2## or --SO.sub.3 M; R.sub.2 represents hydrogen, --OM, a lower alkyl group, an aryl group, an aralkyl group, a lower alkoxy group, an aryloxy group, an aralkyloxy group or ##STR3## R.sub.3 and R.sub.4 each represents hydrogen, a lower alkyl group, an aryl group, an aralkyl group, --COR.sub.7 or --SO.sub.2 R.sub.7 ; R.sub.5 and R.sub.6 each represents hydrogen, a lower alkyl group, an aryl group or an aralkyl group; R.sub.7 represents a lower alkyl group, an aryl group or an aralkyl group, M represents hydrogen, an alkali metal atom or atoms necessary for forming a monovalent cation, m represents 0 or an integer of 1 to 4, n represents 0 or an integer of 1 to 4, and Z represents an atomic group necessary for forming a thiazolyl ring; ##STR4## where in R.sub.8 represents a lower alkylene group, X is the same as X in formula (I), p represents 0 or 1, and q represents 0 or an integer of 1 to 5; ##STR5## wherein R.sub.9 represents hydrogen, an alkyl group, an alkenyl group, an aralkyl group, an aryl group, a heterocyclic group, ##STR6## R.sub.10 and R.sub.11 each represents hydrogen, an alkyl group, an aryl group, a cyano group, a heterocyclic group, an alkylthio group, an arylthio group, an alkylsulfonyloxy group or an alkylsulfonyl group; R.sub.10 and R.sub.11 may be linked to form an aromatic ring; and R.sub.12 and R.sub.13 each represents hydrogen, an alkyl group, an aryl group or an aralkyl group. The material has superior antifungal and antibacterial properties.

公开(公告)号：US4536472A

公开(公告)日：1985-08-20

申请号：US572049

申请日：1984-01-19

申请人： Hirohiko Kato ,  Seiji Ichijima ,  Keiichi Adachi ,  Toshiyuki Watanabe

发明人： Hirohiko Kato ,  Seiji Ichijima ,  Keiichi Adachi ,  Toshiyuki Watanabe

IPC分类号： G03C7/26 ,  G03C1/035 ,  G03C7/30 ,  G03C7/32 ,  G03C1/46

CPC分类号： G03C7/3003

摘要： A silver halide color photographic light-sensitive 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, at least one of these silver halide emulsion layers containing a non-diffusible coupler which forms a properly smearing diffusible dye upon reaction with the oxidation product of a color developing agent together with a monodispersed silver halide emulsion. The silver halide color photographic light-sensitive material provides color images having not only an improved RMS granularity but also an improved visual sensation of graininess.

摘要翻译： 一种卤化银彩色照相感光材料，包括其上具有感蓝卤化银乳剂层，感绿卤化银乳剂层和感红卤化银乳剂层的载体，这些卤化银乳剂层中的至少一种 含有非扩散性成色剂，其与彩色显影剂的氧化产物一起与单分散的卤化银乳剂反应形成适当涂抹的可扩散染料。 卤化银彩色摄影感光材料提供彩色图像，其不仅具有改善的RMS粒度，而且具有改善的颗粒感的视觉感。

公开(公告)号：US4840877A

公开(公告)日：1989-06-20

申请号：US94638

申请日：1987-09-09

申请人： Akira Abe ,  Keiji Mihayashi ,  Hidetoshi Kobayashi ,  Hirohiko Kato

发明人： Akira Abe ,  Keiji Mihayashi ,  Hidetoshi Kobayashi ,  Hirohiko Kato

IPC分类号： G03C7/30

CPC分类号： G03C7/3012

摘要： A silver halide color photographic material comprising a support having thereon at least one silver halide emulsion layer, wherein the silver halide color photographic material contains a magenta dye forming coupler represented by the general formula (I) and a compound represented by the general formula (II) in the same layer ##STR1## wherein R.sub.1 is represents an aromatic group, an aliphatic group or a heterocyclic group; R.sub.2 represents a substituent; Za, Zb, Zc and Zd, which may be the same or different, each represents an unsubstituted methine group, a substituted methine group or --N.dbd.,(R'--COO.sup.-).sub.n M.sup.n+ (II)wherein R' represents a substituent which imparts a diffusion-resistant property to the compound represented by the general formula (II); M.sup.n+ represents a hydrogen ion, a metal ion or an ammonium ion; and n represents an integer from 1 to 4.

摘要翻译： 一种卤化银彩色照相材料，包括其上具有至少一个卤化银乳剂层的载体，其中所述卤化银彩色照相材料含有由通式（I）表示的品红色染料形成成色剂和由通式（II）表示的化合物 ），其中R1表示芳族基团，脂族基团或杂环基团; R2表示取代基; Za，Zb，Zc和Zd可以相同或不同，各自表示未取代的次甲基，取代的次甲基或-N =，（R'-COO-）nMn +（II）其中R'表示取代基 赋予由通式（II）表示的化合物的扩散阻止性; Mn +表示氢离子，金属离子或铵离子; n表示1〜4的整数。