公开(公告)号：US5989773A

公开(公告)日：1999-11-23

申请号：US831777

申请日：1997-03-31

Applicant: Kouta Fukui ,  Minoru Sakai ,  Kazunobu Katoh

Inventor： Kouta Fukui ,  Minoru Sakai ,  Kazunobu Katoh

IPC: G03C1/06 ,  G03C5/30 ,  G03C5/305 ,  G03C5/29

CPC classification number: G03C1/061 ,  G03C5/30 ,  G03C5/305 ,  G03C1/067 ,  G03C2001/108 ,  G03C2005/3007 ,  G03C2200/33 ,  G03C5/3053

Abstract: A developing processing method and an image forming method are described, which comprise the steps of (a) exposing a silver halide photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer; and (b) developing the exposed silver halide photographic material with a developer containing a developing agent, containing substantially no dihydroxybenzene developing agent, containing an auxiliary developing agent exhibiting a superadditive property, containing a quaternary onium salt compound, and having a pH value of from 9.5 to 11.5, or a developer containing a developing agent, containing substantially no dihydroxybenzene developing agent, and having a pH value of from 10 or less.

公开(公告)号：US5925493A

公开(公告)日：1999-07-20

申请号：US810863

申请日：1997-03-04

Applicant: Kouta Fukui ,  Minoru Sakai ,  Kazunobu Katoh

Inventor： Kouta Fukui ,  Minoru Sakai ,  Kazunobu Katoh

IPC: G03C1/06 ,  G03C5/30 ,  G03C5/305 ,  G03C5/29

CPC classification number: G03C1/061 ,  G03C5/30 ,  G03C5/305 ,  G03C1/067 ,  G03C2001/108 ,  G03C2005/3007 ,  G03C2200/33 ,  G03C5/3053

Abstract: A developing processing method and an image forming method are described, which comprise the steps of (a) exposing a silver halide photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer; and (b) developing the exposed silver halide photographic material with a developer containing a developing agent, containing substantially no dihydroxybenzene developing agent, containing an auxiliary developing agent exhibiting a superadditive property, containing a quaternary onium salt compound, and having a pH value of from 9.5 to 11.5, or a developer containing a developing agent, containing substantially no dihydroxybenzene developing agent, and having a pH value of from 10 or less.

Abstract translation: 描述了显影处理方法和图像形成方法，其包括以下步骤：（a）将包含其上的至少一个感光卤化银乳剂层的载体的卤化银照相材料曝光; 和（b）用含有显影剂的显影剂显影曝光的卤化银照相材料，所述显影剂基本上不含二羟基苯显影剂，其含有显示出超级添加性的辅助显影剂，其含有季铵盐化合物，并且其pH值为 9.5至11.5，或含有显影剂的显影剂，其基本上不含二羟基苯显影剂，pH值为10以下。

公开(公告)号：US07229753B2

公开(公告)日：2007-06-12

申请号：US09809178

申请日：2001-03-16

Applicant: Toyohisa Oya ,  Kouta Fukui ,  Yasuhiro Yoshioka ,  Kazunobu Katoh

Inventor： Toyohisa Oya ,  Kouta Fukui ,  Yasuhiro Yoshioka ,  Kazunobu Katoh

IPC: G03C1/498

CPC classification number: G03C1/49827 ,  G03C1/061 ,  G03C1/49845 ,  Y10S430/166

Abstract: A photothermographic material comprising at least (a) a photosensitive silver halide, (b) a reducible silver salt, (c) a reducing compound represented by the following general formula (1), and (d) a binder: Q1—NHNH—R1:   Formula (1) wherein, in the general formula (1), Q1 represents a 5- to 7-membered unsaturated ring bonding to NHNH—R1 at a carbon atom, and R1 represents a carbamoyl group, an acyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, a sulfonyl group or a sulfamoyl group, provided that when R1 is propylcarbamoyl group, Q1 is not 2,3,5,6-tetrachloro-4-cyanophenyl group. According to the present invention, there is provided a novel photothermographic materials showing high sensitivity, high development speed and little fluctuation of performance due to heat development temperature variation.

Abstract translation: 一种光热成像材料，其至少包含（a）光敏卤化银，（b）可还原的银盐，（c）由以下通式（1）表示的还原化合物和（d）粘合剂： -formulae description =“In-line Formulas”end =“lead”？> Q <1> -NHNH-R 1：式（1）<？ 其中，在通式（1）中，Q 1表示与NHNH-R键合的5至7元不饱和环， SUP> 1，R 1表示氨基甲酰基，酰基，烷氧基羰基，芳氧基羰基，磺酰基或氨磺酰基，条件是当 R 1是丙基氨基甲酰基，Q 1不是2,3,5,6-四氯-4-氰基苯基。 根据本发明，提供了一种新型光热敏成像材料，其显示出高灵敏度，高显影速度，并且由于显影温度变化而导致性能波动小。

公开(公告)号：US06395466B1

公开(公告)日：2002-05-28

申请号：US09547761

申请日：2000-04-12

Applicant: Kazunobu Katoh ,  Minoru Sakai

Inventor： Kazunobu Katoh ,  Minoru Sakai

IPC: G03L1498

CPC classification number: G03C1/49827 ,  G03C2200/42

Abstract: A heat-developable image recording material containing an organic silver salt, a reducing agent and an organic binder characterized in that the reducing agent comprises a combination of two or more different kinds of reductive compounds exhibiting superadditivity was disclosed.

Abstract translation: 含有有机银盐，还原剂和有机粘合剂的热显影图像记录材料，其特征在于还原剂包含两种或更多种不同种类的具有超加性的还原性化合物的组合。

公开(公告)号：US5869218A

公开(公告)日：1999-02-09

申请号：US686591

申请日：1996-07-26

Applicant: Minoru Sakai ,  Kazunobu Katoh

Inventor： Minoru Sakai ,  Kazunobu Katoh

IPC: G03C1/06 ,  G03C1/34 ,  G03C5/30 ,  G03C5/31 ,  G03C5/29

CPC classification number: G03C1/061 ,  G03C1/34 ,  G03C5/30 ,  G03C5/31

Abstract: Disclosed are an image formation process which comprises developing a photographic material comprising a silver halide emulsion layer, and a hydrazine derivative and a specific phosphonium compound of formula (1) with a developer which is substantially free of a dihydroxybenzene developing agent, contains a specific developing agent of formula (2) and at least one p-aminophenol derivative, and has a pH value of not more than 10, and a development process which comprises developing a photographic material comprising a silver halide emulsion layer, and a hydrazine derivative and a nucleation accelerator, with a developer having a pH value of from 9.0 to 10.5 and containing a first developing agent selected from ascorbic acid and a derivative thereof and a second developing agent selected from aminophenol and a derivative thereof, wherein a solution having the same composition as the fresh developer but a higher pH value than the fresh developer is used as a development replenisher. The image formation process enables the formation of a high contrast image desirable in the field of graphic arts with a stable developer which is unharmful to an ecosystem or working atmosphere and shows an extremely small deterioration with time, and the development process is useful for a plate-making silver halide photographic material, accomplishes an ultrahigh contrast, minimizes the pH variation during running processing, and reduces the burden on environment.

Abstract translation: 公开了一种图像形成方法，其包括用基本上不含二羟基苯显影剂的显影剂显影包含卤化银乳剂层和肼衍生物和式（1）的特定鏻化合物的照相材料，其包含特定显影剂 式（2）的化合物和至少一种对氨基苯酚衍生物，其pH值不大于10，显影方法包括显影包含卤化银乳剂层和肼衍生物和成核剂的照相材料 促进剂，其显影剂的pH值为9.0〜10.5，含有选自抗坏血酸及其衍生物的第一显影剂和选自氨基苯酚及其衍生物的第二显影剂，其中，具有与 新鲜的显影剂，但是比新鲜显影剂更高的pH值被用作显影补充剂。 图像形成过程使得能够在平面艺术领域中形成具有对生态系统或工作气氛无害的稳定显影剂并且显示出随时间的极小恶化的高对比度图像，并且显影过程对于板材是有用的 制成卤化银照相材料，实现超高的对比度，最大限度地减少运行过程中的pH变化，减少环境负担。

公开(公告)号：US5780198A

公开(公告)日：1998-07-14

申请号：US389728

申请日：1995-02-15

Applicant: Takahiro Goto ,  Kazunobu Katoh ,  Minoru Sakai

Inventor： Takahiro Goto ,  Kazunobu Katoh ,  Minoru Sakai

IPC: G03C1/06 ,  G03C1/42 ,  G03C1/46 ,  G03C7/305

CPC classification number: G03C1/42 ,  G03C1/061 ,  G03C1/46 ,  G03C7/30511 ,  Y10S430/158

Abstract: A silver halide photographic material comprising a plurality of light-sensitive silver halide emulsion layers, wherein (A) at least one of the layers contains a hydrazine nucleating agent represented by formula (II): ##STR1## wherein R.sub.1 represents an aliphatic group or an aromatic group; R.sub.2 represents a hydrogen atom, an alkyl group, an aryl group, an alkoxy group, an aryloxy group, an amino group, a hydrazine group, a carbamoyl group, or an oxycarbonyl group; G.sub.1 represents a carbonyl group, a sulfonyl group, a sulfinyl group, a sulfoxy group, ##STR2## a thiocarbonyl group, or an iminomethylene group; and A.sub.3 and A.sub.4 each represents a hydrogen atom, a substituted or unsubstituted alkylsulfonyl group, a substituted or unsubstituted arylsulfonyl group, or a substituted or unsubstituted acyl group, provided that at least one of A.sub.3 and A.sub.4 is a hydrogen atom; and (B) another layer contains a redox compound capable of releasing a development inhibitor when the redox compound is oxidized. The photographic material can be processed with a highly stable developing solution and provides an ultrahigh contrast image with broad dot gradation.

Abstract translation: 一种卤化银照相材料，其包含多个感光卤化银乳剂层，其中（A）至少一层包含由式（II）表示的肼成核剂：其中R1表示脂族 组或芳族基团; R2表示氢原子，烷基，芳基，烷氧基，芳氧基，氨基，肼基，氨基甲酰基或氧羰基。 G1表示羰基，磺酰基，亚磺酰基，磺氧基，硫代羰基或亚氨基亚甲基; 并且A3和A4各自表示氢原子，取代或未取代的烷基磺酰基，取代或未取代的芳基磺酰基或取代或未取代的酰基，条件是A3和A4中的至少一个为氢原子; 和（B）另一层含有当氧化还原化合物被氧化时能释放显影抑制剂的氧化还原化合物。 照相材料可以用高度稳定的显影液进行处理，并提供具有广泛色调等级的超高对比度图像。

公开(公告)号：US5744279A

公开(公告)日：1998-04-28

申请号：US595478

申请日：1996-02-01

Applicant: Toshihide Ezoe ,  Toshiaki Kubo ,  Hiroshi Takeuchi ,  Kazunobu Katoh ,  Shigeo Hirano ,  Kazuki Yamazaki ,  Takashi Hoshimiya ,  Minoru Sakai ,  Tetsuo Yoshida

Inventor： Toshihide Ezoe ,  Toshiaki Kubo ,  Hiroshi Takeuchi ,  Kazunobu Katoh ,  Shigeo Hirano ,  Kazuki Yamazaki ,  Takashi Hoshimiya ,  Minoru Sakai ,  Tetsuo Yoshida

IPC: G03C1/06 ,  G03C1/295 ,  G03C5/30

CPC classification number: G03C1/295 ,  G03C1/061 ,  G03C5/30

Abstract: A silver halide photographic material is disclosed, comprising a support having provided thereon at least one silver halide emulsion layer, at least one layer of the emulsion layer and other hydrophilic colloid layers containing at least one hydrazine-type nucleating agent having, in the vicinity of the hydrazine group, an anionic group or a nonionic group which forms an intramolecular hydrogen bond with a hydrogen atom of the hydrazine, and also containing at least one of the onium salt compounds represented by formulae (a), (b) and (c), or at least one of the amine compounds represented by formulae (d), (e), (f), (g), (h), (i) and (j). Also disclosed is a method for processing, after exposure, the silver halide photographic material described above with a developer containing a reductone-type developing agent and having a pH of 12 or less.

Abstract translation: 公开了一种卤化银照相材料，其包括在其上设置有至少一个卤化银乳剂层的支撑体，至少一层乳剂层和其它含有至少一种肼型成核剂的亲水胶体层，所述肼型成核剂在 肼基，与肼的氢原子形成分子内氢键的阴离子基团或非离子基团，还含有由式（a），（b）和（c）表示的至少一种鎓盐化合物， ，或者由式（d），（e），（f），（g），（h），（i）和（j）表示的至少一种胺化合物。 还公开了一种在曝光后用含有还原酮型显影剂并且pH为12以下的显影剂处理上述卤化银照相材料的方法。

公开(公告)号：US5478697A

公开(公告)日：1995-12-26

申请号：US400292

申请日：1995-03-06

Applicant: Minoru Sakai ,  Kazunobu Katoh ,  Hisashi Okamura

Inventor： Minoru Sakai ,  Kazunobu Katoh ,  Hisashi Okamura

IPC: G03C1/035 ,  G03C1/06 ,  G03C1/295 ,  G03C5/29

CPC classification number: G03C1/061

Abstract: Silver halide photographic material is disclosed, which has provided on a support at least one silver halide emulsion layer which comprises silver halide grains containing a silver chloride of 50 mol % or more and at least one emulsion layer and other hydrophilic colloid layers contain at least one hydrazine derivative and at least one phosphonium salt compound.

Abstract translation: 公开了卤化银照相材料，其在载体上提供至少一种卤化银乳剂层，其包含含有50摩尔％以上的氯化银的卤化银颗粒和至少一种乳剂层，以及其它亲水胶体层含有至少一种 肼衍生物和至少一种鏻盐化合物。

公开(公告)号：US5447835A

公开(公告)日：1995-09-05

申请号：US167219

申请日：1993-12-16

Applicant: Minoru Sakai ,  Kazunobu Katoh ,  Hisashi Okamura ,  Kazumi Nii

Inventor： Minoru Sakai ,  Kazunobu Katoh ,  Hisashi Okamura ,  Kazumi Nii

IPC: G03C1/06 ,  G03C1/34 ,  G03C1/43 ,  G03C7/305 ,  G03C1/08

CPC classification number: G03C1/061 ,  G03C7/30511 ,  Y10S430/158

Abstract: Disclosed is a silver halide photographic material comprising a support having thereon a silver halide emulsion layer containing at least one nucleating agent represented by general formula (N-1) shown below. The silver halide photographic material contains at least one compound represented by general formula (Q-2) shown below in the above described silver halide emulsion layer and/or in a hydrophilic colloid layer adjacent thereto which does not contain a silver halide emulsion: ##STR1## The variable terms in the above formulas are defined in the specification. The silver halide photographic material is suitable for plate making and provides a high contrast image even when using a highly stable developing solution.

Abstract translation: 公开了一种卤化银照相材料，其包括其上具有卤化银乳剂层的载体，所述卤化银乳剂层含有至少一种由下述通式（N-1）表示的成核剂。 卤化银照相材料在上述卤化银乳剂层和/或不含卤化银乳剂的亲水胶体层中含有至少一种下述通式（Q-2）表示的化合物：（Q-2）上述公式中的变量项在规范中定义。 卤化银照相材料适用于制版，即使使用高度稳定的显影液也能提供高对比度的图像。

公开(公告)号：US5190850A

公开(公告)日：1993-03-02

申请号：US699835

申请日：1991-05-14

Applicant: Minoru Sakai ,  Kazunobu Katoh

Inventor： Minoru Sakai ,  Kazunobu Katoh

IPC: G03C1/06 ,  G03C1/43 ,  G03C1/46 ,  G03C7/305

CPC classification number: G03C7/30511 ,  G03C1/061 ,  G03C1/46 ,  Y10S430/158

Abstract: A silver halide photographic material having on a support a first light-sensitive layer containing a light-sensitive silver halide emulsion and a second light-sensitive layer containing a light-sensitive silver halide emulsion, wherein the first light-sensitive layer and/or a hydrophilic colloid layer contains a hydrazine compound, the second light-sensitive layer contains a redox compound capable of releasing a development inhibitor by oxidation, and the sensitivity of the first light-sensitive layer is higher by 0.2 to 1.0 than that of the second light-sensitive layer.

Abstract translation: 一种卤化银照相材料，其在载体上具有含有感光卤化银乳剂的第一感光层和含有感光卤化银乳剂的第二感光层，其中第一感光层和/或 亲水胶体层含有肼化合物，第二感光层含有通过氧化释放显影抑制剂的氧化还原化合物，第一感光层的灵敏度比第二感光层的灵敏度高0.2〜 敏感层。