公开(公告)号：US5238795A

公开(公告)日：1993-08-24

申请号：US736245

申请日：1991-07-26

申请人： Iku Metoki

发明人： Iku Metoki

IPC分类号： G03C5/17 ,  G03C5/26

CPC分类号： G03C5/17 ,  G03C5/26 ,  G03C2200/58 ,  Y10S430/167

摘要： A light-sensitive silver halide photographic material is disclosed. The light-sensitive material comprises a support and two photographic layers each being provided on both sides, side A and side B, of the support and comprising a silver halide emulsion layer and a hydrophilic colloid layer wherein the light-sensitive material satisfies the relationship between sensitivities sA, sB and sA' thereof represented by the following expressions I and II, and an organic substance remained in the photographic layers after processing is an amount of not more than 90% by weight of the organic substance contained in the photographic layers before processing of the light-sensitive material;I: sA/sA'>4.0II: sA/sB=1.5 to 20wherein sA is sensitivity to light of the photographic layers provided on the side A of the support, when exposure is carried out only from the side A, and sB and sA' are sensitivities to light the photographic layers provided on the sides B and A of the support, respectively, when exposure is carried out only from the side B. The light-sensitive material is improved in the sensitivity, sharpness, fixing ability and dependency on developing conditions thereof.

公开(公告)号：US4925783A

公开(公告)日：1990-05-15

申请号：US190260

申请日：1988-05-02

申请人： Iku Metoki ,  Chika Honda ,  Yasunori Wada

发明人： Iku Metoki ,  Chika Honda ,  Yasunori Wada

IPC分类号： G03C1/08 ,  G03C1/005 ,  G03C1/015 ,  G03C1/07 ,  G03C1/12

CPC分类号： G03C1/015 ,  G03C1/07 ,  G03C1/12 ,  G03C2001/0357

摘要： Disclosed is a light-sensitive silver halide photographic material having at least one layer comprising a silver halide photographic emulsion, wherein the silver halide photographic emulsion is obtained by addition of a spectral sensitizing dye during the desalting step in obtaining the emulsion.According to the present invention, there can be obtained a highly sensitive light-sensitive material with little stain, good pressure blackening performance and yet great absorption of the dye.

公开(公告)号：US5153116A

公开(公告)日：1992-10-06

申请号：US660248

申请日：1991-02-22

申请人： Iku Metoki ,  Kiyoshi Sato

发明人： Iku Metoki ,  Kiyoshi Sato

IPC分类号： G03C1/85 ,  G03C5/16

CPC分类号： G03C5/16 ,  G03C1/85

摘要： There is disclosed a silver halide photographic light-sensitive material comprising a support and provided thereon, at least one silver halide light-sensitive layer spectrally sensitized by adding a spectral sensitizing dye during at least one process selected from a grain formation process, a physical reopening process and a desalting process, wherein said light-sensitive material contains at least one selected from the compounds represented by following Formula A: ##STR1## wherein R.sub.1 represents a hydrogen atom, an alkyl group, a cycloalkyl group, an alkenyl group, an aralkyl group, an alkoxy group, an aryl group, a heterocyclic group, a carbamoyl group, a thiocarbamoyl group, and a sulfamoyl group; R.sub.2 and R.sub.3 represent independently a hydrogen atom, a halogen atom, an alkyl group, a cycloalkyl group, an aryl group, a cyano group, an alkylthio group, an arylthio group, an alkylsulfoxide group, an alkylsulfonyl group, and a heterocyclic group, provided that R.sub.2 and R.sub.3 may combine each other to form a benzene ring.

公开(公告)号：US4801526A

公开(公告)日：1989-01-31

申请号：US161454

申请日：1988-02-18

申请人： Eiji Yoshida ,  Akio Suzuki ,  Satoru Nagasaki ,  Masumi Arai ,  Iku Metoki ,  Haruhiko Sakuma

发明人： Eiji Yoshida ,  Akio Suzuki ,  Satoru Nagasaki ,  Masumi Arai ,  Iku Metoki ,  Haruhiko Sakuma

IPC分类号： G03C1/015 ,  G03C1/02 ,  G03C1/06 ,  G03C5/24

CPC分类号： G03C1/015 ,  G03C2001/03558 ,  G03C2005/168 ,  Y10S430/167

摘要： A silver halide photographic light-sensitive material comprising a specific silver halide grain is disclosed. The siliver halide grain contains a localized portion containing 20 mol % or more of silver iodide and average content of silver iodide of which grain is from 0.1 to 10.0 mol %, provided that the silver halide grain is prepared by mixing an aqueous solution containing a water soluble halide compound and an aqueous solution containing a water soluble silver salt under a condition that pAg of the mixture is raised at 9.7 or more during a period after a half amount of the silver salt to be used has been added to the mixture. The photographic light-sensitive material has improved photographic characteristics and is suitable for radiographic use.

摘要翻译： 公开了包含特定卤化银颗粒的卤化银照相感光材料。 卤化银颗粒包含含有20mol％或更多碘化银的局部部分和平均含量为0.1至10.0mol％的碘化银，条件是卤化银颗粒通过混合含有水的水溶液 可溶性卤化物化合物和含有水溶性银盐的水溶液在混合物的pAg在加入到所述混合物中的半量的银盐之后的期间内升高到9.7以上的条件下进行。 照相感光材料具有改善的照相特性，适用于放射照相。

公开(公告)号：US4659654A

公开(公告)日：1987-04-21

申请号：US780379

申请日：1985-09-26

申请人： Iku Metoki ,  Akio Suzuki ,  Eiji Yoshida ,  Kiyoshi Sato ,  Masumi Hosaka

发明人： Iku Metoki ,  Akio Suzuki ,  Eiji Yoshida ,  Kiyoshi Sato ,  Masumi Hosaka

IPC分类号： G03C1/035 ,  G03C1/005 ,  G03C1/18 ,  G03C1/19 ,  G03C1/08

CPC分类号： G03C1/18 ,  G03C1/005 ,  Y10S430/167

摘要： A silver halide photographic light-sensitive emulsion contains silver halide particles, chemically sensitized, the average concentration of the silver iodide of which is from 0.5 to 10 mole % and which have inside part wherein not less than 20 mole percent silver iodide is present locally; and at least one cyanine dyes having the Formulas [I], [II] and [III] as herein described.

摘要翻译： 卤化银照相感光乳剂含有化学致敏的卤化银颗粒，其碘化银的平均浓度为0.5至10摩尔％，并且其内部具有不少于20摩尔％碘化银的局部存在; 和至少一种如本文所述的具有式[I]，[II]和[III]的花青染料。

公开(公告)号：US5766830A

公开(公告)日：1998-06-16

申请号：US806647

申请日：1997-02-26

申请人： Akira Shimizu ,  Shoji Nishio ,  Yasunori Wada ,  Iku Metoki

发明人： Akira Shimizu ,  Shoji Nishio ,  Yasunori Wada ,  Iku Metoki

IPC分类号： G03C5/26 ,  G03C5/30 ,  G03C5/31 ,  G03C5/395 ,  G03C3/00 ,  G03C5/18 ,  G03C11/00

CPC分类号： G03C5/3958 ,  G03C5/265 ,  G03C5/30 ,  G03C5/31 ,  G03C5/395

摘要： A method for processing an exposed black and white silver halide photographic light-sensitive material includes the steps of: (1) developing the exposed light-sensitive material with a developing solution, (2) fixing the developed material with a fixing solution, (3) washing the fixed material with water which is replenished in an amount of from 0 to 3 liter/m.sup.2 of the exposed light-sensitive material, and (4) drying the washed material. The developing solution is replenished with a solid photographic composition. This solid photographic composition includes a developing agent selected from the group of a dihydroxybenzene developing agent represented by Formula I and a developing agent represented by Formula II (provided that the developing agent represented by Formula II may form a sodium salt, a potassium salt or a lithium salt). Formulae I and II are as follows: ##STR1## In the formulae, R.sub.1, R.sub.2, R.sub.3, and R.sub.4 each represents a hydrogen atom, an alkyl group, an aryl group, a carboxyl group, a halogen atom or a sulfo group; R.sub.7 represents a hydrogen atom, an alkyl group, an aryl group, an amino group, an alkoxyl group, a sulfo group, a carboxyl group, an amido group or a sulfonamido group; E.sup.1 represents an oxygen atom or a sulfur atom; and E.sup.2 represents an oxygen atom, a sulfur atom or an NR.sub.8 group, provided that R.sup.8 represents an alkyl group or an aryl group.

摘要翻译： 一种处理曝光的黑白卤化银照相感光材料的方法包括以下步骤：（1）用显影液显影曝光的感光材料，（2）用定影液固定显影材料，（3 ）用暴露的感光材料的0-3升/平方米的量补充的水清洗固定材料，和（4）干燥洗涤的材料。 显影液用固体摄影组合物补充。 该固体摄影组合物包括选自由式I表示的二羟基苯显影剂和由式II表示的显影剂的显影剂（条件是由式II表示的显影剂可形成钠盐，钾盐或 锂盐）。 式I和II如下：式Ⅰ和R4各自表示氢原子，烷基，芳基，羧基，卤素原子或磺基; R7表示氢原子，烷基，芳基，氨基，烷氧基，磺基，羧基，酰胺基或亚磺酰氨基; E1表示氧原子或硫原子; 并且E2表示氧原子，硫原子或NR8基团，条件是R8表示烷基或芳基。

公开(公告)号：US5148464A

公开(公告)日：1992-09-15

申请号：US625853

申请日：1990-12-11

申请人： Iku Metoki

发明人： Iku Metoki

IPC分类号： G03B42/02 ,  A61B6/00 ,  G03B42/04

CPC分类号： G03B42/047

摘要： The improved apparatus for writing information on X-ray films comprising:means for exposing said X-ray films to write said information,means for identifying a type of said X-ray films, andmeans for adjusting an amount of exposure of said means for exposing in accordance with said means for identifying.

公开(公告)号：US4689292A

公开(公告)日：1987-08-25

申请号：US794641

申请日：1985-11-04

申请人： Iku Metoki ,  Akio Suzuki ,  Eiji Yoshida ,  Kiyoshi Sato ,  Masumi Hosaka ,  Chika Honda

发明人： Iku Metoki ,  Akio Suzuki ,  Eiji Yoshida ,  Kiyoshi Sato ,  Masumi Hosaka ,  Chika Honda

IPC分类号： G03C1/035 ,  G03C1/02

CPC分类号： G03C1/035 ,  G03C2001/03535 ,  G03C2001/03564 ,  G03C2005/168

摘要： A silver halide photographic light-sensitive material having high sensitivity and high covering power, particularly suitable for use in radiography comprising on a support, a silver halide emulsion layer having silver halide grains which have a grain-size distribution curve comprising at least two peaks of which in the mode form, the highest peak mode and another peak mode adjacent thereto stand leaving a space of 0.10.mu. to 0.30.mu. therebetween. An orthochromatic dye-sensitizer increases the sensitivity.

摘要翻译： 一种具有高灵敏度和高覆盖能力的卤化银照相感光材料，特别适用于包含载体的放射照相，具有卤化银颗粒的卤化银乳剂层，其具有晶粒尺寸分布曲线，其包含至少两个峰 在模式形式中，与其相邻的最高峰模式和另一峰模在其间留下0.10μm至0.30μm的间隔。 正色染料敏化剂提高了灵敏度。