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| Number | Title | Issue Date |
| 4828962 | High contrast scanner photographic elements employing ruthenium and iridium dopants Photographic elements comprising a negative working silver halide emulsion containing high intensity reciprocity failure reducing amounts of dopant comprising both ruthenium and iridium ions.... | 05/09/1989 |
| 4818671 | Rapidly processable silver halide color photosensitive material A silver halide color photographic material improved in sensitivity, gradiation and maximum density when the material is treated with a rapid processing. The silver halide color photographic material comprises a support and photograhic component layers in... | 04/04/1989 |
| 4806462 | Silver halide photographic material comprising doped divalent metal A silver halide photographic material is disclosed, comprising a support having thereon at least one photographic silver halide emulsion layer containing silver halide grains dispersed in a dispersing medium, wherein in said silver halide grains, a total ... | 02/21/1989 |
| 4786588 | Silver halide photographic materials A water-soluble silver salt and a water-soluble halide are reacted to obtain silver halide particles, and these are, after being demineralized, transhalogenated by adding thereto a water-soluble bromide in an amount of 0.1 mol % to 7 mol % of the total si... | 11/22/1988 |
| 4746603 | Negative type silver halide photographic emulsions Negative type silver halide photographic emulsions are provided, formed by growing silver halide grains in the presence of a water-soluble iridium salt in a molar ratio of 3×10-4 mol or more to the amount of the total silver halides used in th... | 05/24/1988 |
| 4729946 | Silver halide photographic light-sensitive material A silver halide photographic light-sensitive material is disclosed, comprising a monodisperse silver halide emulsion of 0.30 μm or less in average silver halide grain size containing at least 75 mol % silver chloride and 2 mol % or less silver iodide, an... | 03/08/1988 |
| 4722884 | Silver halide photographic light-sensitive materials and method for formation of negative images of ultra-high contrast using said material A negative silver halide photographic light-sensitive material is provided, having a silver halide emulsion layer, which layer comprises silver haloiodide grains prepared in the presence of an iridium salt in an amount of 1×10-8 to 1×10-... | 02/02/1988 |
| 4713321 | Process for preparing silver halide emulsion utilizing a photographically useful additive capable of being deactivated and a deactivating agent therefor and silver halide photographic material prepared by the process A process for preparing a silver halide photographic emulsion to be used for a photographic material is provided. Therein, additives such as dyes, sensitizers, auxiliary agents to be used upon gold sensitization, and so on are utilized within a period fro... | 12/15/1987 |
| 4705747 | Color photographic recording material containing a silver halide emulsion and a process for its production Improved silver halide emulsions are obtained by the combined use of an iridium compound and an imidazole before termination of crystal growth.... | 11/10/1987 |
| 4704349 | Process for the preparation of photographic direct-positive emulsions Photographic direct-positive emulsions with silver halide crystals of layered structure are prepared. The silver halide crystals of these emulsions can form a latent internal image and are superficially converted to silver iodide. Normal surface developer... | 11/03/1987 |
| 4693965 | Method for manufacturing a silver halide emulsion A method for manufacturing a chemically and spectrally sensitized silver halide emulsion is described, which comprises carrying out chemical ripening of the emulsion in the presence of an iridium salt and a photographic spectral sensitizing dye.... | 09/15/1987 |
| 4683192 | Silver halide photographic emulsions and process for producing them A silver halide photographic emulsion containing silver halide grains, the surface of which is a (110) crystal plane substantially composed of silver bromide or silver iodobromide is disclosed. A process for producing a silver halide photographic emulsion... | 07/28/1987 |
| 4681836 | Silver halide photographic material and method for forming high contrast negative image using the same A silver halide photographic material having at least one silver halide emulsion layer which contains silver halide grains containing from 1×10-8 to 8×10-6 mole of a rhodium salt per mole of silver, and containing in said emulsion ... | 07/21/1987 |
| 4659654 | Silver halide photographic light-sensitive emulsion 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 percen... | 04/21/1987 |
| 4643965 | Direct positive photographic light-sensitive materials A direct positive photographic light-sensitive material is described, comprising a support and at least one internal latent image type silver halide emulsion layer containing core/shell type silver halide grains which are composed of a silver halide core ... | 02/17/1987 |
| 4639416 | Internal latent image-type silver halide emulsion An internal latent image-type silver halide emulsion containing core/shell type silver halide grains with a mean grain size of about 0.4 μm or less, the grains comprising a core of chemically sensitized silver halide and a shell of silver halide covering... | 01/27/1987 |
| 4639414 | Heat developable light-sensitive material A heat developable light-sensitive material comprising a support having thereon (1) a light-sensitive silver halide emulsion, (2) at least one of a base and a base precursor, and (3) a binder, wherein the silver halide emulsion is one which is chemically ... | 01/27/1987 |
| 4634661 | High contrast photographic elements exhibiting stabilized sensitivity A negative working photographic element is disclosed capable of producing a high contrast silver image. The photographic element is comprised of surface latent image forming monodispersed silver halide grains having a mean diameter of less than 0.7 μm, a... | 01/06/1987 |
| 4629678 | Internal latent image-type direct positive silver halide light-sensitive material An internal latent image-type direct positive silver halide light-sensitive material is described, comprising a support having at least one photographic emulsion layer thereon, wherein said layer contains internal latent image-type direct positive silver ... | 12/16/1986 |
| 4623612 | Method of developing silver halide photographic light-sensitive materials 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 hal... | 11/18/1986 |
| 4621041 | Lithographic printing plate Disclosed is a method for plate-making which comprises imagewise exposing by scanning type flash exposure a lithographic printing plate comprising a support and at least a silver halide emulsion layer containing at least 70 mol % of silver chloride and pr... | 11/04/1986 |
| 4618570 | Silver halide photographic materials A silver halide photographic material having at least one layer of silver halide emulsion layers containing a silver halide having a silver chloride content of not less than 25 molar %, characterized in that at least one of said silver halide emulsion lay... | 10/21/1986 |
| 4618574 | High contrast photographic elements exhibiting reduced pepper fog A negative working photographic element is disclosed capable of producing a high contrast silver image. The photographic element is comprised of surface latent image forming monodispersed silver halide grains having a mean diameter of less than 0.7 μm, a... | 10/21/1986 |
| 4617258 | Silver halide photographic material A silver halide photographic material is disclosed. It contains per 100 g of silver at least 40 mg of a water-soluble compound comprising an element of group VIII of the periodic table and having a molecular weight of at least 100, and 1.2 to 120 mg of a ... | 10/14/1986 |
| 4617259 | Silver halide color photographic material A silver halide color photographic material comprising a support having thereon at least a layer containing a group of silver halide grains having a relation that the larger an amount of silver of a grain is, the larger an amount of a content of silver io... | 10/14/1986 |
| 4607006 | Silver halide photographic light-sensitive material containing non-spectral sensitizing electron donative silver halide adsorptive compound A silver halide photographic light-sensitive material is described containing at least one electron-donative, silver halide-adsorptive compound represented by the following general formula (A) or (B), which is not a spectral sensitizing agent for silver h... | 08/19/1986 |
| 4581328 | Internal latent image core/shell silver halide photographic emulsions An internal latent image core/shell silver halide photographic emulsion containing core/shell silver halide grains is disclosed, the grains comprising a silver halide core which is doped with a metal ion or chemically sensitized or is both doped with a me... | 04/08/1986 |
| 4565778 | Silver halide photographic materials Silver halide photographic materials with higher sensitivity and less fogging having at least one silver halide emulsion layer over a photographic base or support wherein the emulsion of said emulsion layer substantially contains core/shell-type silver ha... | 01/21/1986 |
| 4504570 | Direct reversal emulsions and photographic elements useful in image transfer film units High aspect ratio tabular grain direct reversal silver halide emulsions are disclosed. The emulsions can be incorporated in photographic elements, such as multicolor photographic elements. Image transfer film units incorporating these direct reversal emul... | 03/12/1985 |
| 4496652 | Silver halide crystals with two surface types Novel silver halide crystals useful for both negative and positive photographic elements are produced by balanced double jet precipitation. Using that process, silver halide adds preferentially to the (111) surfaces of tetradecahedral silver bromide or io... | 01/29/1985 |
| 4495274 | Direct-positive silver halide photographic material Direct positive silver halide photographic materials comprising a support, a silver halide emulsion layer comprising fogged silver halide particles prepared in the presence of a water soluble iridium salt or a water soluble rhodium salt, and a hydrophilic... | 01/22/1985 |
| 4477561 | Silver halide photographic material A silver halide photographic material having formed on a support two or more layers that are sensitive to the lights of substantially the same spectral region but different in light sensitivity is disclosed. At least one of the layers other than the one h... | 10/16/1984 |
| 4469783 | Silver halide photographic emulsions A silver halide photographic emulsion is described, which has halogen composition comprises at least 60 mole % of silver chloride, 40 mole % or less of silver bromide, and 5 mole % or less of silver bromide. Grain formation is performed in the presence of... | 09/04/1984 |
| 4459347 | Adsorbable arylhydrazides and applications thereof to silver halide photography The use of oxythioamido substituted arylhydrazides in producing images in silver halide photographic elements is disclosed. The oxythioamido substituted arylhydrazide can be incorporated in photographic silver halide emulsions. The oxythioamido substituen... | 07/10/1984 |
| 4452882 | Silver halide photographic materials and process of developing them A silver halide photographic light-sensitive material and a developing process used in connection with that material are disclosed. The material is comprised of a support having thereon a silver halide emulsion layer containing a silver halide emulsion in... | 06/05/1984 |
| 4451560 | Chemical sensitization of silver halide grains A method for forming a photosensitive element which comprises contacting silver halide in a plurality of spaced depressions in a surface with a mixture of a silver halide solvent and preformed sensitivity centers.... | 05/29/1984 |
| 4444865 | Blended grain direct-positive emulsions and photographic elements and processes for their use Blended emulsions for use in forming a direct-positive image are disclosed. The emulsions are comprised of a first, radiation-sensitive core-shell grain population having a relatively low coefficient of variation and a second, substantially smaller size g... | 04/24/1984 |
| 4444874 | Photographic elements containing direct-positive emulsions and processes for their use Photographic elements particularly adapted for forming direct-positive images are disclosed in which a radiation-sensitive core-shell emulsion layer and a silver halide emulsion layer incapable of forming a surface latent image within the direct-positive ... | 04/24/1984 |
| 4439520 | Sensitized high aspect ratio silver halide emulsions and photographic elements High aspect ratio chemically and spectrally sensitized tabular grain silver halide emulsions, photographic elements incorporating these emulsions, and processes for the use of the photographic elements are disclosed. In the tabular grain emulsions the sil... | 03/27/1984 |
| 4431731 | Internal latent image silver halide emulsions An internal latent image silver halide emulsion is disclosed comprising core/shell silver halide particles having a chemically sensitized surface which are composed of a core of silver halide doped with metal ions and/or subjected to chemical sensitizatio... | 02/14/1984 |
