公开(公告)号：US4923789A

公开(公告)日：1990-05-08

申请号：US193443

申请日：1988-05-12

申请人： Morio Yagihara ,  Tetunori Matushita ,  Toshinao Ukai ,  Kazunobu Katoh

发明人： Morio Yagihara ,  Tetunori Matushita ,  Toshinao Ukai ,  Kazunobu Katoh

IPC分类号： G03C7/32 ,  G03C1/825 ,  G03C1/83 ,  G03C7/00 ,  G03C7/305 ,  G03C7/392

CPC分类号： G03C7/30547 ,  Y10S430/156 ,  Y10S430/159

摘要： A silver halide photographic material comprising a support having thereon at least one silver halide light-sensitive emulsion layer, wherein at least one compound represented by the formula (I) is present in said silver halide emulsion layer or at least one other hydrophilic colloid layer of said material:A--B (I)wherein A represents a blocking group which can release a dye for photographic purposes during processing and B represents said dye for photographic purposes which is bonded to A by means of a hetero atom.

摘要翻译： 一种卤化银照相材料，其包含其上具有至少一个卤化银感光乳剂层的载体，其中至少一种式（I）表示的化合物存在于所述卤化银乳剂层或至少一种其它亲水胶体层中 所述材料：AB（I）其中A表示在加工过程中可以释放用于照相目的的染料的封闭基团，B表示用于照相目的的所述染料，其通过杂原子与A键合。

公开(公告)号：US5100761A

公开(公告)日：1992-03-31

申请号：US170524

申请日：1988-03-21

申请人： Morio Yagihara ,  Hisashi Okada ,  Kazunobu Katoh ,  Noriyuki Inoue ,  Shingo Nishiyama ,  Tetunori Matushita

发明人： Morio Yagihara ,  Hisashi Okada ,  Kazunobu Katoh ,  Noriyuki Inoue ,  Shingo Nishiyama ,  Tetunori Matushita

IPC分类号： C07D233/84 ,  C07D235/28 ,  C07D249/12 ,  C07D249/18 ,  C07D257/04 ,  C07D285/12 ,  C07D285/135 ,  G03C1/06 ,  G03C1/485

CPC分类号： C07D257/04 ,  C07D233/84 ,  C07D235/28 ,  C07D249/12 ,  C07D249/18 ,  C07D285/135 ,  G03C1/061 ,  G03C1/48561 ,  Y10S430/141

摘要： A silver halide photographic material comprising one or more silver halide emulsion layers and hydrophilic colloid layers, wherein at least one of the layers contains an acylhydrazine compound as described below. The instant photographic materials have high contrast negative-gradation or positive-gradation characteristics, high maximum image density, excellent reversal characteristics and long-term storage stability.

公开(公告)号：US4956263A

公开(公告)日：1990-09-11

申请号：US238796

申请日：1988-08-31

申请人： Kunio Ishigaki ,  Kazunobu Katoh ,  Nobuaki Inoue ,  Hisashi Okada ,  Toshinao Ukai ,  Morio Yagihara ,  Yoshihiro Takagi ,  Masakazu Yoneyama

发明人： Kunio Ishigaki ,  Kazunobu Katoh ,  Nobuaki Inoue ,  Hisashi Okada ,  Toshinao Ukai ,  Morio Yagihara ,  Yoshihiro Takagi ,  Masakazu Yoneyama

IPC分类号： G03C1/06 ,  G03C1/83

CPC分类号： G03C1/061 ,  G03C1/83 ,  Y10S430/156

摘要： A silver halide photographic material capable of providing very high contrast image and having improved safelight safety is described, which comprises a support having thereon at least one silver halide emulsion layer, and containing in the silver halide emulsion layer or another hydrophilic colloid layer (i) a compound represented by formula (I) ##STR1## wherein PWR represents a group capable of releasing ##STR2## upon being reduced; Time represents a group capable of releasing LA after being released from PWR, t is 0 or 1; and LA represents a group having an absorption maximum in the wavelength region longer than 310 nm, (ii) a hydrazine derivative, and (iii) at least one compound represented by formulae (IX) and (X) ##STR3## wherein R.sup.91, R.sup.92, R.sup.93, and R.sup.94, which may be the same or different, each represents hydrogen, an alkyl group, an aryl group, an amino group, a hydroxyl group, an alkoxy group, an alkylthio group, a carbamoyl group, a halogen atom, a cyano group, a carboxyl group, an alkoxycarbonyl group or a heterocyclic group and R.sup.91 and R.sup.92 or R.sup.92 and R.sup.93 may be linked to form a 5- or 6-membered ring; provided that at least one of R.sup.91 and R.sup.93 represents a hydroxyl group.

公开(公告)号：US5085971A

公开(公告)日：1992-02-04

申请号：US523690

申请日：1990-05-15

申请人： Kazunobu Katoh ,  Morio Yagihara

发明人： Kazunobu Katoh ,  Morio Yagihara

IPC分类号： G03C1/00 ,  G03C1/06 ,  G03C1/42 ,  G03C5/29 ,  G03C7/305

CPC分类号： G03C7/30511 ,  G03C1/002 ,  G03C1/061 ,  G03C1/42 ,  Y10S430/158

摘要： A silver halide photographic material comprising a support having thereon a hydrophilic colloid layer which contains gelatin and wherein the hydrophilic colloid layer contains fine polymer particles which contains a redox compound which is capable of releasing a development inhibitor by oxidation, and a hydrazine compound, which is not the same as the redox compound, is contained in the hydrophilic colloid layer and/or in another hydrophilic colloid layer.

公开(公告)号：US5124230A

公开(公告)日：1992-06-23

申请号：US650384

申请日：1991-02-04

申请人： Hisashi Okamura ,  Kazunobu Katoh ,  Morio Yagihara

发明人： Hisashi Okamura ,  Kazunobu Katoh ,  Morio Yagihara

IPC分类号： G03C1/06 ,  G03C1/485

CPC分类号： G03C1/48561 ,  G03C1/061

摘要： The silver halide photographic material capable of providing very high contrast negative images is disclosed, which has at least one silver halide photographic emulsion layer on a support, wherein the silver halide photographic emulsion layer or another hydrophilic colloid layer provided on the support contains a nucleating agent represented by formula (Ia), (Ib) or (Ic): ##STR1## wherein R.sub.11, R.sub.12, R.sub.21, R.sub.31, Y.sub.11, Y.sub.21, A.sub.11, A.sub.12 and G.sub.11 are defined in the specification.

摘要翻译： 公开了能够提供非常高的对比度负像的卤化银照相材料，其在载体上具有至少一个卤化银照相乳剂层，其中设置在载体上的卤化银照相乳剂层或另一亲水胶体层含有成核剂 （Ia），（Ib）其中R11，R12，R21，R31，Y11，Y21，A11，A12和 G11在规范中定义。

公开(公告)号：US5030547A

公开(公告)日：1991-07-09

申请号：US373019

申请日：1989-06-28

申请人： Kazunobu Katoh ,  Morio Yagihara

发明人： Kazunobu Katoh ,  Morio Yagihara

IPC分类号： G03C1/06

CPC分类号： G03C1/061 ,  G03C2001/108

摘要： A negative-type silver halide photographic material is disclosed, which comprises a support having provided thereon at least one hydrophilic colloid layer, at least one of which is a silver halide emulsion layer, wherein the hydrophilic colloid layer contains:(a) a compound represented by formula (I): ##STR1## wherein, A.sub.1 and A.sub.2 both represent hydrogen atoms, or one represents a hydrogen atom and the other a sulfonyl group or an acyl group, R.sub.1 represents an aliphatic group, an aromatic group or a heterocyclic group, G.sub.1 represents a carbonyl group, a sulfonyl group, a sulfoxy group, ##STR2## wherein R.sub.2 is an alkoxy group or an aryloxy group, a ##STR3## group, or an iminoethylene group, X.sub.1 is a moiety which instigates a ring-forming reaction by cleaving the --G.sub.1 --X.sub.1 moiety from the residual molecule and forming a cyclic structure containing the atoms of the --G.sub.1 --X.sub.1 moiety; and(b) an amine, the compound represented by formula (I) and the amine being present in the same layer or in different layers.

摘要翻译： 公开了一种负型卤化银照相材料，其包括其上提供有至少一个亲水胶体层的载体，其中至少一个是卤化银乳剂层，其中亲水胶体层包含：（a） 通式（I）：其中，A1和A2均表示氢原子，或一个表示氢原子，另一个表示氢原子，另一个表示磺酰基或酰基，R 1表示脂肪族基团，芳香族基团或 杂环基，G 1表示羰基，磺酰基，磺酰氧基，其中R 2为烷氧基或芳氧基，或者亚氨基亚甲基，X 1为引发环的部分 通过从残留分子中切割-G1-X1部分并形成含有-G1-X1部分原子的环状结构; 和（b）胺，由式（I）表示的化合物和胺以相同的层或不同的层存在。

公开(公告)号：US4977062A

公开(公告)日：1990-12-11

申请号：US178391

申请日：1988-04-06

申请人： Morio Yagihara ,  Hisashi Okada ,  Kazunobu Katoh ,  Nobuaki Inoue

发明人： Morio Yagihara ,  Hisashi Okada ,  Kazunobu Katoh ,  Nobuaki Inoue

IPC分类号： G03C1/06

CPC分类号： G03C1/061

摘要： An ultra-high contrast negative type silver halide photographic material comprising:(1) at least one silver halide emulsion layer on a support;(2) at least one compound selected from among hydrazine derivatives which can be represented by formula (I) below, which is included in said emulsion layer or in another hydrophilic colloid layer, ##STR1## wherein A.sub.1 and A.sub.2 both represent hydrogen atoms or one represents a hydrogen atom and the other represents a sulfinic acid residual group or an acyl group, R.sub.1 represents an aliphatic group, an aromatic group or a heterocyclic group, R.sub.2 represents a hydrogen atom, an alkyl group, an aryl group, an alkoxy group, an aryloxy group, or an amino group, G.sub.1 represents a carbonyl group, a sulfonyl group, a sulfoxy group, a phosphoryl group or an N-substituted or unsubstituted iminomethylene group, and at least one of R.sub.1 and R.sub.2 has a group which promotes adsorption on silver halide; and(3) at least one compound selected from among the hydrazine derivatives which can be represented by the formula (II) below, which is included in the said emulsion layer or in another hydrophilic colloid layer, ##STR2## wherein A.sub.3 and A.sub.4 both represent hydrogen atoms or one represents a hydrogen atom and the other represents a sulfinic acid residual group or an acyl group, R.sub.3 represents an aliphatic group, an aromatic group or a heterocyclic group, R.sub.4 represents a hydrogen atom, an alkyl group, an aryl group, an alkoxy group, an aryloxy group or an amino group, G.sub.2 represents a carbonyl group, a sulfonyl group, a sulfoxy group, a phosphoryl group, or an iminomethylene group, and the total number of carbon atoms in R.sub.3 and R.sub.4 is at least 13.

公开(公告)号：US4971888A

公开(公告)日：1990-11-20

申请号：US349170

申请日：1989-05-09

申请人： Hisashi Okada ,  Morio Yagihara ,  Kazunobu Katoh

发明人： Hisashi Okada ,  Morio Yagihara ,  Kazunobu Katoh

IPC分类号： C07C271/28 ,  C07C275/36 ,  C07C275/40 ,  C07C275/42 ,  C07C311/08 ,  C07C311/24 ,  C07C311/47 ,  C07C311/49 ,  C07C323/60 ,  C07C333/08 ,  C07D209/48 ,  C07D213/77 ,  C07D213/82 ,  C07D251/20 ,  G03C1/06 ,  G03C1/485

CPC分类号： C07D209/48 ,  C07C271/28 ,  C07C275/36 ,  C07C275/40 ,  C07C275/42 ,  C07C311/08 ,  C07C311/24 ,  C07C311/47 ,  C07C311/49 ,  C07C323/60 ,  C07C333/08 ,  C07D213/77 ,  C07D213/82 ,  C07D251/20 ,  G03C1/061

摘要： A silver halide photographic material is disclosed, comprising a support having thereon at least one of silver halide photographic emulsion layers and other hydrophilic colloidal layers, wherein said at least one of photographic emulsion layers and other hydrophobic colloidal layers contains a compound represented by formula (I) ##STR1## wherein at least one of A.sub.1 and A.sub.2 represents a hydrogen atom and other represents a hydrogen atom, a sulfinic residual group or ##STR2## wherein R.sub.0 represents an alkyl group, an alkenyl group, an aryl grup, an alkoxy group or an aryloxy group, and l.sub.1 represents an integer of 1 or 2; G represents ##STR3## wherein m.sub.1 represents an integer of 1 or 2, a sulfonyl group, a sulfoxy group ##STR4## wherein R.sub.1 represents an alkoxy grup or an aryloxy group, a thiocarbonyl grup or an iminomethylene group; X represents an aliphatic group, an aromatic group or a heterocyclic group, substituted by the group represented by formula (a): ##STR5## wherein Y represents a hydrogen atom, an aliphatic group, an aromatic group or a heterocyclic group; L represents ##STR6## wherein R.sub.a ' represents a hydrogen atom, an aliphatic group or an aromatic group; R.sub.a represents a hydrogen atom, an aliphatic group or an aromatic group; and R represents a group represented by formula (b): ##STR7## wherein R.sub.b.sup.1 to R.sub.b.sup.4 may be the same or different and each represents a hydrogen atom, an aliphatic group or an atomatic group; B represents a suitable atomic group for forming a 5- or 6-membered ring; Z represents a group capable of making a nucleophilic attach on G to separate the --G--R portion from the other portion of the formula; m.sub.b represents an integer of 0 or 1; n.sub.b represents an integer of 1 when Z is a hydroxy group, or n.sub.b represents an integer of 0 or 1 when Z represents a group other than a hydroxy group; and (m.sub.b +n.sub.b) represents an integer of 1 or 2.

公开(公告)号：US4908293A

公开(公告)日：1990-03-13

申请号：US93341

申请日：1987-09-04

申请人： Kazunobu Katoh ,  Yoshihiro Takagi ,  Kimitaka Kameoka ,  Junji Miyata ,  Toshinao Ukai

发明人： Kazunobu Katoh ,  Yoshihiro Takagi ,  Kimitaka Kameoka ,  Junji Miyata ,  Toshinao Ukai

IPC分类号： G03C1/06 ,  G03C1/36

CPC分类号： G03C1/061 ,  G03C5/16

摘要： A superhigh contrast negative type silver halide photographic material, comprising a support having provided thereon at least one silver halide emulsion layer, wherein the emulsion layer or at least one other hydrophilic colloid layer contains at least one hydrazine derivative and at least one organic desensitizer having at least one water-soluble group or alkali-dissociative group. The material has a reduced sensitivity suitable for processing in a bright room while enjoying the effect of the hydrazine derivative to increase contrast.

摘要翻译： 一种超高对比度负型卤化银照相材料，包括其上提供有至少一个卤化银乳剂层的载体，其中所述乳剂层或至少一种其它亲水胶体层含有至少一种肼衍生物和至少一种有机脱敏剂，其具有 至少一个水溶性基团或碱解离基团。 该材料具有降低的灵敏度，适用于在明亮的房间中加工，同时享受肼衍生物的作用以增加对比度。

公开(公告)号：US5395732A

公开(公告)日：1995-03-07

申请号：US893945

申请日：1992-06-04

申请人： Kazunobu Katoh ,  Morio Yagihara ,  Takahiro Goto

发明人： Kazunobu Katoh ,  Morio Yagihara ,  Takahiro Goto

IPC分类号： G03C1/06 ,  G03C7/305

CPC分类号： G03C7/30511 ,  G03C1/061 ,  Y10S430/158

摘要： A silver halide photographic material is disclosed, which comprises (a) at least one light-sensitive silver halide emulsion layer containing a hydrazine derivative and (b) a hydrophilic colloid layer which is different from the light-sensitive silver halide emulsion layer and which contains a redox compound capable of releasing a development inhibitor as a result of oxidation.

摘要翻译： 公开了一种卤化银照相材料，其包含（a）至少一种含有肼衍生物的感光卤化银乳剂层和（b）与感光卤化银乳剂层不同的亲水胶体层， 能够由于氧化而释放显影抑制剂的氧化还原化合物。