公开(公告)号：US5462844A

公开(公告)日：1995-10-31

申请号：US412618

申请日：1995-03-29

Applicant: Yasuo Tosaka

Inventor： Yasuo Tosaka

IPC: G03C1/485 ,  G03C1/79 ,  G03C7/30 ,  G03C7/305 ,  G03C7/36 ,  G03C7/38 ,  G03F3/10 ,  G03C1/46

CPC classification number: G03C1/48538 ,  G03C7/3003 ,  G03F3/107 ,  G03C2007/3015 ,  G03C2007/3024 ,  G03C2200/29 ,  G03C7/3029 ,  G03C7/30535 ,  G03C7/36 ,  G03C7/367 ,  G03C7/38 ,  G03C7/3835

Abstract: A light-sensitive silver halide color photographic material suited for preparing a color proofing image is provided, comprising a support and provided thereon a yellow image forming silver halide emulsion layer, a magenta image forming silver halide emulsion layer and a cyan image forming silver halide emulsion layer, wherein a silver halide emulsion with a spectral sensitivity having a part common to the respective spectral sensitivity regions pertaining to said yellow, magenta and cyan image forming silver halide emulsion layers is contained in at least one of the image forming silver halide emulsion layers; and the magenta image forming silver halide emulsion layer contains a compound represented by the following formula and a yellow dye forming coupler.

Abstract translation: 提供了适用于制备彩色打印图像的感光卤化银彩色照相材料，其包括支撑体，并在其上提供黄色图像形成卤化银乳剂层，品红色图像形成卤化银乳剂层和青色成像卤化银乳剂 其中具有光谱灵敏度的卤化银乳剂包含在至少一个图像形成卤化银乳剂层中，所述卤化银乳剂具有与所述黄色，品红色和青色成像卤化银乳剂层相关的各个光谱灵敏度区域共有的部分。 并且品红色图像形成卤化银乳剂层含有由下式表示的化合物和形成黄色染料的成色剂。

公开(公告)号：US4939078A

公开(公告)日：1990-07-03

申请号：US247172

申请日：1988-09-21

Applicant: Kazuya Kuramoto ,  Bunzo Ueda ,  Yasuo Tosaka

Inventor： Kazuya Kuramoto ,  Bunzo Ueda ,  Yasuo Tosaka

IPC: G03C7/30

CPC classification number: G03C7/3022

Abstract: A direct positive type silver halide photographic material and developing method therefor are disclosed. The photographic material have blue-, green- and red-sensitive emulsion layers and each of these emulsion layer contains at least two kinds of silver halide emulsion being different from each other in average grain size. The average grain diameter S of the emulsion having the smallest average grain size and the average grain diameter of the emulsion having the largest average grain size in each emulsion layer have a proportional relation of 1.6.ltoreq.L/S. The emulsion having the smallest average grain size is contained in a ratio of from 2 to 50% in the blue-sensitive layer and 2 to 40% in green- and red-sensitive emulsion layer.

公开(公告)号：US4758504A

公开(公告)日：1988-07-19

申请号：US945306

申请日：1986-12-22

Applicant: Yukio Ohya ,  Syoji Matsuzaka ,  Yasuo Tosaka ,  Yoshihiko Suda

Inventor： Yukio Ohya ,  Syoji Matsuzaka ,  Yasuo Tosaka ,  Yoshihiko Suda

IPC: G03C1/005 ,  G03C1/035 ,  G03C1/02

CPC classification number: G03C1/035

Abstract: Disclosed are silver halide grains which have crystal faces defined by Miller indices of (nnl) where n.gtoreq.2 and comprising a silver halide composition consisting substantially of silver chlorobromide; a light-sensitive silver halide photographic material having, on a support, light-sensitive silver halide emulsion layers at least one of which contain the above silver halide grains; and a method for preparing silver halide photographic emulsion containing the above silver halide grains having the steps of mixing a silver ion solution and a halide ion solution in the presence of a protective colloid and then forming and growing silver halide grains having a silver halide composition of 2 mole % or less of silver iodide, 1 to 99 mole % of silver chloride and 99 mole % or less of silver bromide, wherein the silver ion solution comprises an ammoniacal silver nitrate solution and formation and growing of the silver halide grains are carried out in the presence of at least one selected from the compounds represented by the formula (I), (II), (III) or (IV) shown below and the compounds having the recurring units represented by the formula (V) shown below: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3, which may be either the same or different, each represent a hydrogen atom, a halogen atom, a hydroxyl group, an amino group, a derivative of an amino group, an alkyl group, a derivative of an alkyl group, an aryl group, a derivative of an aryl group, a cycloalkyl group, a derivative of a cycloalkyl group, a mercapto group, a derivative of an mercapto group or --CONH--R.sub.4 (R.sub.4 is a hydrogen atom, an amino group, a derivative of an alkyl group, a derivative of an amino group, a halogen atom, a cycloalkyl group, a derivative of a cycloalkyl group, an aryl group or a derivative of an aryl group), R.sub.1 and R.sub.2 may be bonded together to form a ring, R.sub.5 represents a hydrogen atom or an alkyl group, X represents a monovalent group formed by eliminating one hydrogen atom from the compounds represented by the formula (I), (II), (III) or (IV), and J represents a divalent linking group.

公开(公告)号：US4279987A

公开(公告)日：1981-07-21

申请号：US93734

申请日：1979-11-13

Applicant: Keiji Ogi ,  Takashi Sasaki ,  Yasuo Tosaka

Inventor： Keiji Ogi ,  Takashi Sasaki ,  Yasuo Tosaka

IPC: G03C1/485 ,  G03C5/24

CPC classification number: G03C1/48538

Abstract: This invention relates to a light-sensitive, direct positive silver halide photographic material, more particularly to a light-sensitive silver halide photographic material of internal latent image type containing a novel, development-accelerating compound, as used for the formation of a direct positive image by imagewise exposure followed by overall light-exposure before and/or during development or development treatment in the presence of a fogging agent.

Abstract translation: 本发明涉及一种感光的直接正性卤化银照相材料，更具体地说涉及一种内含潜像的感光卤化银照相材料，其含有新颖的显影促进化合物，用于形成直接阳性 通过在雾化剂存在下，在显影或显影处理之前和/或期间进行图像曝光，然后进行总体曝光。

公开(公告)号：US6096490A

公开(公告)日：2000-08-01

申请号：US210486

申请日：1998-12-11

Applicant: Yasuo Tosaka ,  Yoshiyuki Nonaka

Inventor： Yasuo Tosaka ,  Yoshiyuki Nonaka

IPC: G03C7/00 ,  G03C1/20 ,  G03C1/95 ,  G03C7/30 ,  G03C7/38 ,  G03F3/10 ,  G03C1/79 ,  G03C1/91 ,  G03C5/16

CPC classification number: G03F3/107 ,  G03C1/95 ,  G03C7/3029 ,  G03C7/382 ,  Y10S430/145

Abstract: A silver halide light sensitive color photographic material is disclosed, comprising a reflective support having on one side of the support a hydrophilic colloid layer containing a white pigment and one or more silver halide emulsion layers, wherein at least one of the silver halide emulsion layers contains a silver halide emulsion having a spectral sensitivity maximum at a wavelength of 730 nm or more, and an average primary particle size of the white pigment being 0.30 .mu.m or more.

Abstract translation: 公开了一种卤化银光敏彩色照相材料，其包括反射性支持体，其在支撑体的一侧具有含有白色颜料和一种或多种卤化银乳剂层的亲水胶体层，其中至少一种卤化银乳剂层含有 在730nm以上的波长下具有光谱灵敏度最大值的白色卤化银乳剂，白色颜料的平均一次粒径为0.30μm以上。

公开(公告)号：US5480767A

公开(公告)日：1996-01-02

申请号：US340029

申请日：1994-11-14

Applicant: Yasuo Tosaka ,  Yoshiyuki Nonaka ,  Keiichi Hoshino

Inventor： Yasuo Tosaka ,  Yoshiyuki Nonaka ,  Keiichi Hoshino

IPC: G03C7/00 ,  G03C1/047 ,  G03C1/79 ,  G03C1/83 ,  G03C1/91 ,  G03C7/30 ,  G03F3/10

CPC classification number: G03C1/83 ,  G03C1/047

Abstract: Disclosed is a silver halide color photographic light-sensitive material comprising a reflective support comprising polyolefin resin coated paper and provided on one side thereof with photographic component layers comprising a hydrophilic colloidal layer containing a white pigment, a non-sensitive hydrophilic colloidal layer, and a silver halide emulsion layer, wherein at least one of said photographic component layers contains an oil-soluble dye or a colored pigment, either of which is not substantially incapable of being decolorized on a photographic-processing.

Abstract translation: 公开了一种卤化银彩色照相感光材料，其包括包含聚烯烃树脂涂布纸并且在其一侧上设置有包含含有白色颜料，非敏感亲水性胶体层和亲水性胶体层的亲水性胶体层的照相组分层的反射性载体， 卤化银乳剂层，其中至少一个所述照相组分层含有油溶性染料或着色颜料，其中任一种基本上不能在照相处理中脱色。

公开(公告)号：US5436117A

公开(公告)日：1995-07-25

申请号：US340186

申请日：1994-11-14

Applicant: Keiichi Hoshino ,  Susumu Ohkawauchi ,  Yasuo Tosaka ,  Yoshiyuki Nonaka

Inventor： Keiichi Hoshino ,  Susumu Ohkawauchi ,  Yasuo Tosaka ,  Yoshiyuki Nonaka

IPC: G03C1/43 ,  G03C1/485 ,  G03C1/83 ,  G03C7/30 ,  G03F3/10 ,  G03C1/46

CPC classification number: G03F3/107 ,  G03C1/832 ,  G03C7/3003 ,  G03C7/3041

Abstract: Disclosed is a positive type silver halide color photographic light-sensitive material comprising a support having thereon a mainly yellow image forming layer, a mainly magenta image forming layer and a mainly cyan image forming layer; wherein, when an exposure is conducted with 1/10 to 10 times an exposure amount giving minimum density of +0.2 on a first layer selected from said three layer after developing in the main spectra sensitivity region of the first layer, a second layer selected from said three layers is given lower density with said exposure than a density without said exposure; and after a photographic process comprising a color developing step, the mainly yellow, mainly magenta and mainly cyan image forming layers have the monochromatic yellow, magenta and cyan tones in toe portions thereof each of not less than 1.7. The silver halide color photographic light sensitive material is capable of providing a color proof improved in the approximation degrees of an image quality to a printed matter.

Abstract translation: 公开了一种正型卤化银彩色摄影感光材料，其包括其上具有主要为黄色图像形成层，主要是品红色图像形成层和主要为青色图像形成层的支撑体; 其特征在于，在所述第一层的主光谱灵敏度区域显影之后，在从所述三层中选择的第一层上施加1/10〜10倍的给出最小密度的曝光量进行曝光的情况下，选自 所述曝光的三层被赋予的密度低于没有曝光的密度; 并且在包括彩色显影步骤的摄影处理之后，主要是黄色，主要为品红色和主要为青色的成像层的趾部中的单色黄色，品红色和青色色调各自不小于1.7。 卤化银彩色摄影感光材料能够提供改善印刷品的图像质量近似度的防色彩。

公开(公告)号：US4943518A

公开(公告)日：1990-07-24

申请号：US288022

申请日：1988-12-21

Applicant: Tomomi Yoshizawa ,  Keiji Ogi ,  Yasuo Tosaka ,  Kazuya Kuramoto ,  Yoshiyuki Nonaka

Inventor： Tomomi Yoshizawa ,  Keiji Ogi ,  Yasuo Tosaka ,  Kazuya Kuramoto ,  Yoshiyuki Nonaka

IPC: G03C1/485 ,  G03C7/30

CPC classification number: G03C7/3022 ,  G03C1/48569

Abstract: A direct positive type silver halide color photographic material and an image forming method are disclosed. A green sensitive emulsion layer of the photographic material comprises silver halide grains having at least two peaks on the size distribution curve thereof and the grain size corresponding to the smallest grain size peak among the peaks is not more than 0.3 .mu.m and a magenta coupler represented by the following Formula (M-I); ##STR1## wherein Z is a group of non-metal atoms necessary to complete a nitrogen-containing heterocyclic ring; X is a hydrogen atom or a split-off group and R is a substituent. The photographic material is developed with a color development in the presence of a fogging agent to directly form the positive image after imagewise exposure to light. Thus obtained image is improved in a increased maximum density, lowered minimum density and wider exposure latitude. Stability of gradation with respect to variation of development conditions is also improved.

公开(公告)号：US4917991A

公开(公告)日：1990-04-17

申请号：US210397

申请日：1988-06-23

Applicant: Yasuo Tosaka ,  Keiji Ogi ,  Atushi Kamitakahara

Inventor： Yasuo Tosaka ,  Keiji Ogi ,  Atushi Kamitakahara

IPC: G03C1/485

CPC classification number: G03C1/48576

Abstract: A direct positive silver halide photographic material with an internal latent image-type silver halide emulsion layer that provides a direct positive image by a fogging treatment (for example, an overall exposure, or surface developing treatment in the presence of a fogging agent) after imagewise exposure. The silver halide particles which form the emulsion layer consist essentially of a core portion made of silver halide and having been chemically sensitized or doped with metal ions. There are provided a plural number of shell portions made of silver halide containing silver chloride. The chloride content of an inner shell adjacent to the outmost shell of the particles has a smaller amount of chloride content than that of the outermost shell. The photographic material is used by first imagewise exposing it to light, effecting overall fogging treatment on the silver halide particles and processing the exposed photographic material to produce the image.

Abstract translation: 具有内部潜像型卤化银乳剂层的直接正性卤化银照相材料，其通过雾化处理（例如，在雾化剂存在下的总体曝光或表面显影处理）提供直接正像 曝光。 形成乳剂层的卤化银颗粒基本上由卤化银制成的核心部分组成，并已被化学增感或掺杂金属离子。 提供了多个由含有氯化银的卤化银制成的外壳部分。 与壳体的最外壳相邻的内壳的氯化物含量比最外层的氯化物含量少。 照相材料通过首先成像曝光使用，对卤化银颗粒进行总体雾化处理并处理曝光的照相材料以产生图像。

公开(公告)号：US4863838A

公开(公告)日：1989-09-05

申请号：US188647

申请日：1988-05-02

Applicant: Keiji Ogi ,  Yasuo Tosaka

Inventor： Keiji Ogi ,  Yasuo Tosaka

IPC: G03C1/485

CPC classification number: G03C1/48576

Abstract: A direct positive photographic material having a support and a silver halide emulsion layer thereon contains internal latent image type silver halide grains. These grains have a core/shell structure and have not been previously fogged. Each grain comprises a conversion type silver halide core and a silver halide shell over the core.The layer would produce, when exposed for a given time upto one second and developed at 20.degree. C. for 4 minutes with a certain internal developing solution, a maximum density which is at least five times that obtained when the layer is similarly exposed and developed with a particular surface developing solution.

Abstract translation: 其上具有支持体和卤化银乳剂层的直接正性照相材料含有内部潜像型卤化银颗粒。 这些颗粒具有核/壳结构，并且以前没有雾化。 每个晶粒包含核心上的转化型卤化银芯和卤化银壳。 该层将在一定时间内暴露一秒钟，并在一定的内部显影液中在20℃下显影4分钟时，该层的最大密度至少是当该层类似地暴露和显影时获得的五倍 具有特定的表面显影溶液。