公开(公告)号：US4851321A

公开(公告)日：1989-07-25

申请号：US117724

申请日：1987-11-06

申请人： Yoshihiro Takagi ,  Hisashi Okada ,  Morio Yagihara ,  Kazunobu Katoh

发明人： Yoshihiro Takagi ,  Hisashi Okada ,  Morio Yagihara ,  Kazunobu Katoh

IPC分类号： G03C1/06

CPC分类号： G03C1/061 ,  G03C1/36 ,  G03C2001/094 ,  G03C5/16 ,  Y10S430/15

摘要： A superhigh contrast negative type silver halide photographic material comprising a support having provided thereon at least one silver halide emulsion layer, the emulsion layer or at least one other hydrophilic colloid layer containing at least one hydrazine derivative and at least one compound of formula (I):Y[(X).sub.n A-B].sub.m (I)wherein Y represents a group capable of adsorbing to silver halide; X represents a divalent linking group comprising an atom or atoms selected from a hydrogen atom, a carbon atom, a nitrogen atom, an oxygen atom and a sulfur atom or an atomic group comprised of the atoms; A represents a divalent linking group; B represents a substituted or unsubstituted amino group, an ammonium group or a nitrogen-containing heterocyclic group; m represents 1, 2 or 3; and n represents 0 or 1. The photographic material may contain an organic desensitizer and a water-soluble rhodium salt, and the material has a low sensitivity and can be handled in a bright room.

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支撑体，所述乳剂层或至少一种含有至少一种肼衍生物和至少一种式（I）化合物的其它亲水胶体层， ：Y [（X）nA-B] m（I）其中Y表示能够吸收卤化银的基团; X表示包含选自氢原子，碳原子，氮原子，氧原子和硫原子的原子或原子或由原子构成的原子团的二价连接基团; A表示二价连接基团; B表示取代或未取代的氨基，铵基或含氮杂环基; m表示1,2或3; 并且n表示0或1.照相材料可以含有有机脱敏剂和水溶性铑盐，并且该材料具有低灵敏度并且可以在明亮的房间中处理。

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：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：US5187042A

公开(公告)日：1993-02-16

申请号：US515882

申请日：1990-04-27

申请人： Kazunobu Katoh ,  Hisashi Okamura ,  Hisashi Okada ,  Nobuaki Inoue ,  Toshiro Takahashi ,  Morio Yagihara ,  Tetsuo Yamaguchi

发明人： Kazunobu Katoh ,  Hisashi Okamura ,  Hisashi Okada ,  Nobuaki Inoue ,  Toshiro Takahashi ,  Morio Yagihara ,  Tetsuo Yamaguchi

IPC分类号： G03C1/06 ,  G03C1/09 ,  G03C7/305

CPC分类号： G03C7/30511 ,  G03C1/061 ,  G03C1/09 ,  Y10S430/158

摘要： A silver halide photographic material comprising a support having thereon at least one sensitive silver halide emulsion layer, wherein said emulsion layer comprises a monodisperse emulsion and said emulsion layer or other hydrophilic colloid layer contains at least one hydrazine derivative and at least one redox compound capable of releasing a development inhibitor when oxidized.

摘要翻译： 一种卤化银照相材料，包括其上具有至少一个敏感卤化银乳剂层的载体，其中所述乳剂层包含单分散乳液，所述乳剂层或其它亲水胶体层含有至少一种肼衍生物和至少一种能够 当氧化时释放显影抑制剂。

公开(公告)号：US5006445A

公开(公告)日：1991-04-09

申请号：US343441

申请日：1989-04-26

申请人： Morio Yagihara ,  Hisashi Okada ,  Kazunobu Katoh

发明人： Morio Yagihara ,  Hisashi Okada ,  Kazunobu Katoh

IPC分类号： G03C1/06 ,  G03C1/485

CPC分类号： G03C1/061

摘要： A silver halide photographic material comprising a support having thereon at least one hydrophilic colloid layer, at least one of which is a silver halide photographic emulsion layer, is disclosed. At least one of the silver halide emulsion layers or other hydrophilic colloid layers of the photographic material contains 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, a ##STR2## group wherein R.sub.2 represents an alkoxy group or an aryloxy group, a ##STR3## group or an iminomethylene 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 forms a cyclic structure containing the atoms of the --G.sub.1 --X.sub.1 moiety, and at least one of R.sub.1 and X.sub.1 has a silver halide adsorption accelerating group.

摘要翻译： 公开了一种卤化银照相材料，其包含其上具有至少一个亲水胶体层的载体，其中至少一个是卤化银照相乳剂层。 照相材料的卤化银乳剂层或其他亲水胶体层中的至少一种含有由式（I）表示的化合物：其中，A1和A2均代表氢原子或一个表示氢原子， 另一个是磺酰基或酰基，R 1表示脂族基团，芳族基团或杂环基团，G 1表示羰基，磺酰基，磺基氧基，其中R 2表示烷氧基或 一个芳氧基，一个“IMAGE”基团或一亚氨基亚甲基，X 1是通过从残留分子中切割-G1-X1部分并形成含有-G1-的原子的环状结构来引发成环反应的部分， X1部分，并且R1和X1中的至少一个具有卤化银吸附促进基团。

公开(公告)号：US5147754A

公开(公告)日：1992-09-15

申请号：US742070

申请日：1991-08-07

申请人： Hisashi Okamura ,  Hisashi Okada ,  Morio Yagihara ,  Kazunobu Katoh

发明人： Hisashi Okamura ,  Hisashi Okada ,  Morio Yagihara ,  Kazunobu Katoh

IPC分类号： G03C1/06 ,  G03C1/43 ,  G03C7/305

CPC分类号： G03C1/061 ,  G03C7/30511 ,  Y10S430/141 ,  Y10S430/158

摘要： A silver halide photographic material which provides a negative image contains a compound represented by formula (I): ##STR1## wherein R represents an aliphatic group, an aromatic group, or a heterocyclic group; Z represents a development inhibitor group containing an anionic functional group as a partial structure; "Time" represents a divalent group; and n is 0 or 1.

公开(公告)号：US5134055A

公开(公告)日：1992-07-28

申请号：US512221

申请日：1990-04-20

申请人： Hisashi Okamura ,  Hisashi Okada ,  Morio Yagihara ,  Kazunobu Katoh ,  Keiji Mihayashi

发明人： Hisashi Okamura ,  Hisashi Okada ,  Morio Yagihara ,  Kazunobu Katoh ,  Keiji Mihayashi

IPC分类号： G03C1/06 ,  G03C7/305 ,  G03C8/40

CPC分类号： G03C7/30511 ,  G03C1/061 ,  G03C8/408 ,  Y10S430/156 ,  Y10S430/158 ,  Y10S430/16

摘要： A silver halide photographic material is disclosed, which has at least one compound represented general formula (1): ##STR1## wherein R represents an aliphatic group, an aromatic group, or a heterocyclic group; both L and Time represent a divalent organic group; t represents 0 or 1; PUG represents a photographically useful group; Y represents --SO.sub.2 --, --Y'--SO.sub.2 --, or ##STR2## and Y' represents --O--, --NH--, or ##STR3## The material has a broad exposure latitude in line image-taking work and has a high resolving power in the work. It can form an ultrahard image having a high gamma value of 10 or more. The material may excellently reproduce a line original to form an ultrahard image having a high background density. It also has a broad exposure latitude in halftone dot image-taking work and can form a halftone dot image having ultrahigh contrast with high image quality.

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：US5139921A

公开(公告)日：1992-08-18

申请号：US653480

申请日：1991-02-12

申请人： Yoshihiro Takagi ,  Hisashi Okada ,  Morio Yagihara

发明人： Yoshihiro Takagi ,  Hisashi Okada ,  Morio Yagihara

IPC分类号： G03C1/06

CPC分类号： G03C1/061 ,  G03C2001/108

摘要： A process of forming super high contrast negative photographic materials in a developer having a pH of from 9.6 to 11.0 wherein the photographic material contains a hydrazine compound and a nucleation accelerator. The nucleation accelerator is represented by formula (Ia):Y[(A.sub.1).sub.p A.sub.2 --B].sub.m (Ia)wherein Y represents a group adsorbing onto silver halide; A.sub.1 represents a divalent linkage group composed of an atom or an atomic group selected from hydrogen, carbon, nitrogen, oxygen, and sulfur and selected from ##STR1## with a straight chain or branched alkylene group wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7, R.sub.8, R.sub.9 and R.sub.10 each represents hydrogen, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted alkenyl group or a substituted or unsubstituted aralkyl group; A.sub.2 represents a divalent linkage group selected from a straight chain or branched alkylene group, a straight chain or branched alkenylene group, a straight chain or branched aralkylene group or a straight chain or branched arylene group; B represents a substituted or unsubstituted amino group, an ammonium group, or a nitrogen-containing heterocyclic ring; m represents the integer 1, 2, or 3; and p represents 0 or the integer 1.

摘要翻译： 在具有9.6至11.0的pH的显影剂中形成超高对比度负型照相材料的方法，其中照相材料含有肼化合物和成核促进剂。 成核促进剂由式（Ia）表示：Y [（A1）pA2-B] m（Ia）其中Y表示吸附在卤化银上的基团; A1表示由选自氢，碳，氮，氧和硫的原子或原子团组成的二价连接基团，并且选自具有直链或支链的 其中R1，R2，R3，R4，R5，R6，R7，R8，R9和R10各自表示氢，取代或未取代的烷基，取代或未取代的芳基，取代或未取代的烯基或取代或未取代的烯基 未取代的芳烷基; A2表示选自直链或支链亚烷基，直链或支链亚烯基，直链或支链亚芳基或直链或支链亚芳基的二价连接基团; B表示取代或未取代的氨基，铵基或含氮杂环; m表示整数1,2或3; p表示0或整数1。