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1. 发明授权

US4623612A Method of developing silver halide photographic light-sensitive materials 失效
标题翻译：卤化银照相感光材料的开发方法
公开(公告)号：US4623612A
公开(公告)日：1986-11-18
申请号：US788702
申请日：1985-10-21
申请人： Toshihiro Nishikawa , Hatsumi Tanemura
发明人： Toshihiro Nishikawa , Hatsumi Tanemura
IPC分类号： G03C1/035 , G03C5/50 , G03C7/26
CPC分类号： G03C1/035 , G03C5/50 , G03C2001/03535
摘要： An improved method of developing silver halide photographic light-sensitive materials comprising at least one silver halide emulsion layer on a support is disclosed. In the improvement, said silver halide emulsion layer contains core/shell type silver halide grains having a shell thickness of 25 to 150 .ANG. wherein the surface of the core is subjected to chemical sensitization treatment and the surface of the shell is not subjected to chemical sensitization, and a developing solution contains a solvent for silver halide. It is possible to carry out spectral sensitization without causing a reduction in intrinsic sensitivity and to provide high-speed silver halide light-sensitive materials which are excellent in anti-fading property of latent images and excellent in stabilization with the passage of time using the above-described improved method.
摘要翻译：公开了一种在载体上包含至少一种卤化银乳剂层的卤化银照相感光材料的改进方法。在改进中，所述卤化银乳剂层含有外壳厚度为25至150的核/壳型卤化银颗粒，其中芯的表面进行化学敏化处理，并且壳的表面不经受化学增感，显影液含有卤化银溶剂。可以进行光谱增感而不引起本征敏感性的降低，并提供高速卤化银感光材料，其具有优异的潜像的抗褪色性和优异的稳定性随着时间的推移使用上述描述改进方法。

2. 发明授权

US5081009A Process for preparing an internal latent image silver halide emulsion 失效
标题翻译：制备内部图像银膜乳液的方法
公开(公告)号：US5081009A
公开(公告)日：1992-01-14
申请号：US559452
申请日：1990-07-25
申请人： Hatsumi Tanemura , Sadanobu Shuto , Noriyuki Inoue , Naoyasu Deguchi
发明人： Hatsumi Tanemura , Sadanobu Shuto , Noriyuki Inoue , Naoyasu Deguchi
IPC分类号： G03C1/035 , G03C1/485
CPC分类号： G03C1/035 , G03C1/48538
摘要： A direct positive photosensitive material composed of a support having thereon at least one photosensitive emulsion layer comprising non-prefogged internal latent image silver halide grains and at least one compound represented by formulae (I), (II), (III) or (IV): ##STR1## wherein M.sub.1 represents hydrogen, a cation or a protective group capable of being cleaved by an alkali; and Z represents an atomic group necessary for forming a 5-membered or 6-membered substituted or unsubstituted ring selected from a heterocyclic ring and a condensed heterocyclic ring; ##STR2## wherein Z.sub.1 represents an alkyl group containing from 1 to 18 carbon atoms, an aryl group containing from 6 to 18 carbon atoms or a heterocyclic group; Y.sub.1 and Y.sub.2, which may be the same or different, each represents an atomic group necessary for forming an aromatic ring containing from 6 to 18 carbon atoms or a heterocyclic ring; M represents a metal atom or an organic cation; and n is an integer of 2 to 10.

3. 发明授权

US4556633A Silver halide color light-sensitive materials 失效
标题翻译：卤化银色感光材料
公开(公告)号：US4556633A
公开(公告)日：1985-12-03
申请号：US702754
申请日：1985-02-19
申请人： Hatsumi Tanemura , Toshinao Ukai , Masaki Okazaki , Naoyasu Deguchi , Munehisa Fujita , Kiyohiko Yamamuro
发明人： Hatsumi Tanemura , Toshinao Ukai , Masaki Okazaki , Naoyasu Deguchi , Munehisa Fujita , Kiyohiko Yamamuro
IPC分类号： G03C7/26 , G03C1/06 , G03C1/28 , G03C7/392
CPC分类号： G03C1/28
摘要： Silver halide color light-sensitive materials which contain a compound having a repeating unit represented by general formula (I) and a compound represented by general formula (II): ##STR1## wherein R.sub.1 represents --OR, --SR or wherein R and R' each represents a hydrogen atom, or alkyl group, a hydroxyalkyl group, a sulfoalkyl group (or a salt thereof), a carboxyalkyl group (for a salt thereof), an aralkyl group, an aryl group, or a cycloalkyl group, or R and R' may form an alkylene group or an --O-- containing alkylene ring together; R.sub.2, R.sub.3, R.sub.4 and R.sub.5 each represents a hydrogen atom or an alkyl group; Y.sub.1, Y.sub.2, Y.sub.3 and Y.sub.4 each represents a polymethylene group, an arylene group, or a cycloalkylene group, Z represents --O--, --SO.sub.2 -- or --CH.sub.2 --; and l and m each represents 0 or 1; ##STR2## wherein R.sub.6 represents a hydrogen atom, an alkyl group; R.sub.7 and R.sub.8, which may be identical or different, each represents an alkyl group, or an aryl group, but at least one of R.sub.7 and R.sub.8 is an alkyl group having an acid substituent; D and E, which may be identical or different, each represents a hydrogen atom, a halogen atom, an alkyl group, a hydroxyl grup, an alkoxy group, an acyl group, an acyloxy group, an alkoxycarbonyl group, a carbamoyl group, a sulfamoyl group, a cyano group, a carboxyl group, an sulfo group, a trifluoromethyl group, a phenyl group or a benzene condensed ring, but at least one of D and E represents a hydroxyl group, an alkoxy group, an alkoxycarbonyl group or a carboxyl group; Z.sub.1 represents an anion; and n represents 1 or 2, but n represents 1 when the dye forms an inner salt; the light-sensitive materials improve sensitization processing aptitude.
摘要翻译：卤化银颜色感光材料，其含有具有由通式（I）表示的重复单元的化合物和由通式（II）表示的化合物：其中R 1表示-OR，-SR或

4. 发明授权

US5110719A Process for preparing a direct positive photographic material 失效
标题翻译：制备直接摄影材料的方法
公开(公告)号：US5110719A
公开(公告)日：1992-05-05
申请号：US611373
申请日：1990-11-13
申请人： Sadanobu Shuto , Hatsumi Tanemura , Shigeo Hirano
发明人： Sadanobu Shuto , Hatsumi Tanemura , Shigeo Hirano
IPC分类号： G03C1/485
CPC分类号： G03C1/48538 , Y10S430/141
摘要： A process for preparing a direct positive photosensitive material comprising providing on a support at least one silver halide light-sensitive emulsion layer containing the combination of (a) non-prefogged internal latent image silver halide grains; (b) a binder; (c) at least one compound represented by formulae (I), (II), or (III); and at least one compound represented by formula (IV):R--SO.sub.2 S--M (I)R--SO.sub.2 S--R.sup.1 (II)R--SO.sub.2 S--L.sub.m --S.O.sub.2 S--R.sup.2 (III)wherein R, R.sup.1 and R.sup.2 each represents a substituted or unsubstituted aliphatic group, a substituted or unsubstituted aromatic group or a substituted or unsubstituted heterocyclic group; M represents a cation; L represents a divalent linking group; and m is 0 or 1; andR.sup.3 --SO.sub.2 --M.sup.1 (IV)wherein R.sup.3 represents an aliphatic group, an aromatic group or a heterocyclic group; and M.sup.1 represents a cation. The material provides a direct positive image with high Dmax, low Dmin and high contrast.

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