公开(公告)号：US5041366A

公开(公告)日：1991-08-20

申请号：US429648

申请日：1989-10-31

申请人： Satomi Asano ,  Hiroshi Okusa ,  Nobuaki Kagawa ,  Hirofumi Ohtani ,  Syoji Matsuzaka

发明人： Satomi Asano ,  Hiroshi Okusa ,  Nobuaki Kagawa ,  Hirofumi Ohtani ,  Syoji Matsuzaka

IPC分类号： G03C1/29 ,  G03C1/02

CPC分类号： G03C1/29

摘要： A silver halide photographic material in which at least one silver halide emulsion layer coated onto a base support has been subjected to supersensitization by the combination of at least one symmetrical carbocyanine dye having two symmetrical heterocyclic structures, at least one other symmetrical carbocyanine dye having two symmetrical heterocyclic structures, and at least one asymmetrical carbocyanine dye having either one of the two heterocyclic structures in the first symmetrical carbocyanine dye and either one of the two heterocyclic structures in the second symmetrical carbocyanine dye. This photographic material has high spectral sensitivity and good storage stability since it is resistant to desensitization due to desorption of spectral sensitizers from silver halides.

公开(公告)号：US5340710A

公开(公告)日：1994-08-23

申请号：US86571

申请日：1993-07-06

申请人： Yukio Ohya ,  Syoji Matsuzaka ,  Yasushi Irie ,  Shuji Murakami ,  Satomi Asano ,  Hiroshi Okusa ,  Hirofumi Ohtani

发明人： Yukio Ohya ,  Syoji Matsuzaka ,  Yasushi Irie ,  Shuji Murakami ,  Satomi Asano ,  Hiroshi Okusa ,  Hirofumi Ohtani

IPC分类号： G03C1/015 ,  G03C1/12 ,  G03C1/035

CPC分类号： G03C1/12 ,  G03C1/015

摘要： A photosensitive silver halide photographic material having a support and, provided thereon, the photographic component layers including at least one silver halide emulsion layer containing silver halide grains (1) having at least two kinds of halogens, is disclosed. The silver halide grains (1) are grown to in a system in the presence of silver halide grains (2) coexisting:with silver halide grains which are growing to the silver halide grains (1),for at least some portion of period that said silver halide grains are growing in the system,and comprising solubility product less than that of said growing silver halide grains.

摘要翻译： 公开了一种光敏卤化银照相材料，其具有支撑体，并且在其上设置包括至少一个含有卤化银颗粒（1）的卤化银乳剂层的照相组分层，所述卤化银乳剂层具有至少两种卤素。 卤化银颗粒（1）在卤化银颗粒（2）共存的系统中生长至卤化银颗粒（1）的卤化银颗粒至少部分时间段 卤化银颗粒在系统中生长，并且包含小于所述生长卤化银颗粒的溶解度积。

公开(公告)号：US5541052A

公开(公告)日：1996-07-30

申请号：US341896

申请日：1994-11-15

申请人： Hiroshi Okusa ,  Syoji Matsuzaka ,  Hirofumi Ohtani

发明人： Hiroshi Okusa ,  Syoji Matsuzaka ,  Hirofumi Ohtani

IPC分类号： G03C1/035 ,  G03C7/305 ,  G03G1/005

CPC分类号： G03C1/035 ,  G03C7/30541 ,  Y10S430/145 ,  Y10S430/156

摘要： The improved silver halide photographic material has one or more silver halide emulsion layers on a support and at least one of said emulsion layers contains silver halide grains which are of normal crystal form having at least one concave crystal face. This photographic material has not only high sensitivity but also good keeping quality.

摘要翻译： 改进的卤化银照相材料在载体上具有一个或多个卤化银乳剂层，并且至少一个所述乳剂层含有具有至少一个凹面结构的正常晶体形式的卤化银颗粒。 这种照相材料不仅具有高灵敏度，而且具有良好的保持质量。

公开(公告)号：US5039601A

公开(公告)日：1991-08-13

申请号：US579255

申请日：1990-09-05

申请人： Yukio Ohya ,  Syoji Matsuzaka ,  Hirofumi Ohtani ,  Yoshiro Ito ,  Mineko Ito

发明人： Yukio Ohya ,  Syoji Matsuzaka ,  Hirofumi Ohtani ,  Yoshiro Ito ,  Mineko Ito

IPC分类号： G03C1/36 ,  G03C1/035 ,  G03C7/26 ,  G03C7/30

CPC分类号： G03C7/30 ,  G03C1/035 ,  G03C7/3022 ,  G03C2001/03564

摘要： A silver halide color negative photographic light-sensitive material is disclosed which is improved on stability to fluctuation of processing conditions applied thereon, and has a sufficient wide exposure latitude. The photographic material is also improved on standing stability of silver halide emulsion in the course of manufacturing thereof. The photographic material comprises a support having thereon photographic component layers including at least one silver halide emulsion layer containing at least two groups of silver halide grains each being substantially different in desensitizing agent content from each other.

公开(公告)号：US5518874A

公开(公告)日：1996-05-21

申请号：US714691

申请日：1991-06-13

申请人： Yoshiro Ito ,  Hirofumi Ohtani ,  Syoji Matsuzaka

发明人： Yoshiro Ito ,  Hirofumi Ohtani ,  Syoji Matsuzaka

IPC分类号： G03C1/015 ,  G03C1/035 ,  G03C1/06 ,  G03C1/07 ,  G03C1/34

CPC分类号： G03C1/07 ,  G03C1/035 ,  G03C1/346

摘要： A method for manufacturing a silver halide emulsion comprising core/shell type silver iodobromide grains, said emulsion having an average iodide content of 3 mol % or more, each of the grains having two or more phases different in silver iodide content from each other which comprises an inner phase having silver iodide content of 10 mol % or more and an outermost phase having a silver iodide content lower than the iodide content of the inner phase, wherein a compound represented by the following formula [I] is present at least in a process prior to a desalting process:formula [I] ##STR1## wherein Z represents a group of atoms necessary to form a five- or six-membered heterocycle, which may be a condensed ring; and M represents an alkali metal atom or ammonium group.

摘要翻译： 一种制造包含核/壳型碘溴化银颗粒的卤化银乳剂的方法，所述乳液的平均碘化物含量为3摩尔％以上，每个颗粒具有彼此不同的碘化银含量的两个或多个相，其包含 具有碘化银含量为10摩尔％以上的内相和具有低于内相碘化物含量的碘化银含量的最外相，其中由下式[I]表示的化合物至少存在于 在脱盐过程之前：式[I]其中Z表示形成五元或六元杂环所必需的原子团，其可以是稠环; M表示碱金属原子或铵基。

公开(公告)号：US4996140A

公开(公告)日：1991-02-26

申请号：US362126

申请日：1989-06-06

申请人： Tomoyuki Nakayama ,  Hiroyuki Hoshino ,  Hirofumi Ohtani ,  Syoji Matsuzaka

发明人： Tomoyuki Nakayama ,  Hiroyuki Hoshino ,  Hirofumi Ohtani ,  Syoji Matsuzaka

IPC分类号： G03C1/08 ,  G03C1/015 ,  G03C1/12

CPC分类号： G03C1/015 ,  G03C1/12

摘要： A silver halide photographic material having silver halide emulsion layers, at least one of which contains a silver halide emulsion that has been prepared in such a way that a spectral sensitizing dye is added after 85 wt % of the soluble silver salt in solution that is to be added during ripening of silver halide emulsion has been added but before the start of a desalting step, and that a spectral sensitizing dye which may be the same or different from the first added dye is added during the desalting step.

公开(公告)号：US5362470A

公开(公告)日：1994-11-08

申请号：US888636

申请日：1992-05-27

申请人： Haruhiko Masutomi ,  Naoko Uchida ,  Hirofumi Ohtani ,  Kazuyoshi Ichikawa

发明人： Haruhiko Masutomi ,  Naoko Uchida ,  Hirofumi Ohtani ,  Kazuyoshi Ichikawa

IPC分类号： C01G5/00 ,  C01G7/00 ,  G03C1/09 ,  C01B19/04 ,  C09K11/02

CPC分类号： G03C1/09 ,  C01G5/00 ,  C01G7/00 ,  C01G7/006

摘要： A method for manufacturing an ultrafine gold and/or silver chalcogenide being used for the sensitivity speck seeding sensitization method is disclosed. The gold and/or silver compound, and a water-soluble chalcogenide are mixed into a protective colloid solution under prescribed condition. The light-sensitive photographic material obtained by this method has a high sensitivity and low fog property.

摘要翻译： 公开了用于制造敏感性斑点接种敏化方法的超细金和/或银硫族化物的方法。 金和/或银化合物和水溶性硫族化物在规定条件下混合成保护胶体溶液。 通过该方法获得的感光感光材料具有高灵敏度和低雾度。

公开(公告)号：US5334359A

公开(公告)日：1994-08-02

申请号：US896987

申请日：1992-06-11

申请人： Haruhiko Masutomi ,  Hirofumi Ohtani ,  Naoko Uchida ,  Chikao Mamiya

发明人： Haruhiko Masutomi ,  Hirofumi Ohtani ,  Naoko Uchida ,  Chikao Mamiya

IPC分类号： C01B17/20 ,  B01D9/00 ,  B01F13/10 ,  B01J19/00 ,  B01J19/18 ,  C01B19/00 ,  C01G5/00 ,  C01G5/02 ,  C01G7/00 ,  G03C1/015 ,  B01F7/16 ,  B01D9/02 ,  B01J8/20

CPC分类号： G03C1/015 ,  B01D9/0036 ,  B01F13/1013 ,  B01J19/18 ,  C01G5/00 ,  C01G7/00 ,  B01J2219/185

摘要： An apparatus for producing sparingly water-soluble salt crystal grains, including a mixing vessel in which a cationic component solution and an anionic component solution are mixed to form a precipitation process solution in which sparingly water-soluble salt grains are produced, wherein the mixing vessel is connected to a reaction chamber through a one-way valve, and the precipitation process solution is injected into the crystal growth process solution through the one-way valve immediately after mixing while stirring the crystal growth process solution.

摘要翻译： 一种生产微溶水盐晶粒的装置，包括混合容器，其中阳离子组分溶液和阴离子组分溶液混合以形成其中产生微溶水盐颗粒的沉淀工艺溶液，其中混合容器 通过单向阀连接到反应室，并且在搅拌晶体生长工艺溶液之后，将沉淀工艺溶液通过单向阀立即注入晶体生长工艺溶液中。

公开(公告)号：US5358841A

公开(公告)日：1994-10-25

申请号：US129026

申请日：1993-09-29

申请人： Hirofumi Ohtani

发明人： Hirofumi Ohtani

IPC分类号： G03C1/035 ,  G03C1/015

CPC分类号： G03C1/015

摘要： A method for preparing a silver halide emulsion is disclosed. The silver halide emulsion comprises silver halide grains which are mixed crystals comprising: preparing a seed emulsion comprising seed grains; and adding potentially effective silver iodide grains comprising a silver halide micro grains having .gamma.-AgI structure, a soluble salt and a soluble halide to the seed emulsion.

摘要翻译： 公开了一种制备卤化银乳剂的方法。 卤化银乳剂包括卤化银颗粒，其为混合晶体，包括：制备包含晶粒的种子乳液; 并将含有具有γ-Ag结构的卤化银微粒，可溶性盐和可溶性卤化物的潜在有效的碘化银颗粒加入到种子乳液中。

公开(公告)号：USH1196H

公开(公告)日：1993-06-01

申请号：US628566

申请日：1990-12-17

申请人： Fumie Fukazawa ,  Katuya Yabuuchi ,  Hirofumi Ohtani

发明人： Fumie Fukazawa ,  Katuya Yabuuchi ,  Hirofumi Ohtani

IPC分类号： G03C7/20 ,  G03C7/30

CPC分类号： G03C7/3041

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, whereina maximum sensitivity wavelength .lambda..sub.R of a spectral sensitivity distribution of said red-sensitive silver halide emulsion layer is in a range of 595 nm.ltoreq..lambda..sub.R .ltoreq.625 nm;a maximum sensitivity wavelength .lambda..sub.G of a spectral sensitivity distribution of said green-sensitive silver halide emulsion layer is in a range of 530 nm.ltoreq..lambda..sub.G .ltoreq.560 nm; anda sensitivity of said green-sensitive silver halide emulsion layer at 500 nm is not less than one-fourth of the sensitivity at the maximum sensitivity wavelength .lambda..sub.G.