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5306608 |
Direct positive photographic light-sensitive material
A direct positive photographic light-sensitive material comprises a support and a light-sensitive emulsion layer provided thereon which contains non-pre-fogged internal latent image type silver...
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5302502 |
Silver halide color photographic material
A novel silver halide color photographic material is provided which is excellent in color reproduction and color image fastness, and shows only small variations in gradation due to fluctuaion in...
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5300413 |
Photoelectric elements for producing spectral image records retrievable by scanning
A method is disclosed of extracting two or more spectral image records from an imagewise exposed multicolor photographic element containing a plurality of tabular grain emulsions for individually...
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5298389 |
Dry gelatin addition to an emulsion/dispersion mixture
The present invention is a method to add dry gelatin to a photographic emulsion in either a liquid or a solid form. The dry gelatin is added by entraining the dry gelatin in air to form a gaseous...
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5298388 |
Process for the preparation of a grain stabilized high chloride tabular grain photographic emulsion (III)
A process is disclosed of preparing an emulsion for photographic use comprised of silver halide grains and a gelatino-peptizer dispersing medium in which morphologically unstable tabular grains...
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5298385 |
High chloride folded tabular grain emulsions
A process is disclosed of preparing an emulsion comprised of dispersing medium and folded tabular grains containing at least 95 mole percent chloride, based on total silver. This is achieved by...
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5298384 |
Pressure fog-resistant photographic element
A method for controlling pressure-induced fog in a silver bromide photographic material involves surface treatment of the emulsion AgBr grains with thiocyanate and an iodide salt. In particular, a...
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5298386 |
In-line solvent incorporation for amorphous particle dispersions
An in-line process for mixing solvents with amorphous particle dispersions is disclosed. Continuous emulsification of the solvent is achieved by an in-line high-shear mixer, and diffusion of...
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5292632 |
High tabularity high chloride emulsions with inherently stable grain faces
A radiation sensitive emulsion is disclosed containing a silver halide grain population internally free of iodide at the site of grain nucleation comprised of at least 50 mole percent chloride,...
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H001294 |
Silver halide photographic emulsion
A photographic silver halide emulsion comprising silver chlorobromide grains containing at least 80 mol % silver chloride or silver chloride grains is disclosed, wherein tabular grains having a...
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5288603 |
High chloride silver iodohalide emulsions containing an increased proportion of iodide
A photographic silver halide emulsion comprised of a high chloride silver iodohalide grain structure in which the proportion of iodide has been increased.
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5286621 |
Method for the preparation of tabular emulsion grains rich in chloride
A method is disclosed for the preparation of silver halide tabular emulsion grains, containing at least 75% chloride, wherein at least 50% of the total projected area of all the grains is provided...
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5286622 |
Light-sensitive element for silver salt diffusion transfer method
There is disclosed the light-sensitive element having a high sensitivity and capable of forming a transferred image with a small fluctuation in a sensitivity and a gradation. The light-sensitive...
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5284726 |
Method to determine silver loss in a photographic emulsion manufacturing process
The present disclosure describes a method called the rinse test for determining where silver is being lost and the variability of this loss in a photographic emulsion manufacturing process. Results...
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5284744 |
Non-ultraviolet-absorbing peptizer for silver halide emulsions
Silver halide emulsions can be prepared by precipitating the silver halide grains in the presence of a peptizer comprising a water-soluble starch, said peptizer exhibiting an absorbance of less...
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5284745 |
Silver halide photographic material
There is disclosed a silver halide photographic material having a photosensitive emulsion layer on a base, comprising a high-silver-chloride silver chlorobromide emulsion which is obtained by...
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5284743 |
Silver halide photographic materials
A silver halide photographic material comprising at least one photosensitive emulsion layer contains silver halide grains on a support. In the silver halide photographic material, (1) the silver...
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H001285 |
Silver halide photographic emulsion and material
A silver halide photographic emulsion is disclosed, comprising silver halide grains containing a first silver halide phase containing at least 3 mol % of silver iodide and having a completely...
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5278041 |
Silver halide color photographic light sensitive material
A silver halide color light-sensitive material is disclosed. The light-sensitive material comprises a support and a silver halide emulsion layer provided on the support. The emulsion layer...
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5273873 |
Control of surface iodide using post precipitation KC1 treatment
The invention is generally accomplished by at the end of precipitation of a bromoiodide silver halide emulsion, adding a soluble chloride salt to the precipitation prior to emulsion washing. The...
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5272048 |
Reversal photographic elements containing tabular grain emulsions
A multicolor photographic element capable of forming a viewable reversal dye image is disclosed comprising a support and, coated on the support, a blue recording yellow dye image forming layer...
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5272027 |
Method of monitoring the preparation of a photographic emulsion by conductivity measurements
While preparing a photographic emulsion a conductivity reading is continuously or periodically taken from the batch during creation. The conductivity of the batch is compared to a standard plot of...
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5270159 |
Process of producing silver halide grains and apparatus therefor
A process and apparatus for producing silver halide grains wherein by removing water, etc., from a liquid containing fine, silver halide grains formed in a mixer and being added to a reaction...
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5266450 |
Silver halide photographic light-sensitive material
A silver halide photographic light-sensitive material comprising a support, and a plurality of silver halide emulsion layers formed on the support, at least one of the emulsion layers containing...
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5264338 |
Method for making silver halide emulsion, photosensitive materials using the same, and methods of recording images using the photosensitive materials
A method of preparing a superfine grain emulsion with a grain size of 0.05 μm or less is provided, which includes mixing aqueous solutions of a water-soluble silver salt and a water-soluble halide...
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5264337 |
Moderate aspect ratio tabular grain high chloride emulsions with inherently stable grain faces
A radiation sensitive emulsion is disclosed containing a silver halide grain population internally free of iodide at the site of grain nucleation comprised of at least 50 mole percent chloride,...
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5254454 |
Method of preparing silver halide grains for photographic emulsion and light sensitive material containing the same
A method of preparing silver halide grains for a photographic emulsion which has a constant mass production qualities and a controlled crystalization technique is disclosed. The first reaction of...
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5254456 |
Method of manufacturing silver halide emulsion
A method of manufacturing a silver halide emulsion, wherein reduction sensitization is performed by using at least one of ascorbic acid and derivatives thereof in a process of manufacturing a...
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5254453 |
Process for preparing narrow size distribution small tabular grains
The invention is generally accomplished by a method of forming a silver halide emulsion in which digestion of nucleated silver halide grains is carried out in a halide solvent concentration of...
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5252450 |
Capped photochromic silver halides for incorporation into a plastic matrix
A photochromic composition for incorporation into a light-transmitting polymer is described. Silver halide crystallites are capped with an organic capping group using multivalent metal ions...
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5252452 |
Process for the preparation of high chloride tabular grain emulsions
A process of preparing a radiation sensitive high chloride high aspect ratio tabular grain emulsion is disclosed wherein silver ion is introduced into a high methionine gelatino-peptizer dispersing...
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5252453 |
Process for accelerating the precipitation of a low coefficient of variation emulsion
A process is disclosed of accelerating the preparation of a photographic emulsion containing tabular silver halide grains exhibiting a reduced degree of total grain dispersity. A dispersing medium...
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5252442 |
Radiographic elements with improved detective quantum efficiencies
A radiographic element is disclosed comprised of a film support capable of transmitting radiation to which the radiographic element is responsive having opposed major surfaces, and, coated on the...
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5250408 |
Chloride containing tabular grains with holes and process for their preparation
The present invention is directed to a process of precipitating, for use in photography, a high aspect ratio silver halide tabular grain emulsion employing a dispersing medium and silver...
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5250403 |
Photographic elements including highly uniform silver bromoiodide tabular grain emulsions
Novel tabular grain emulsions and a process for their preparation are disclosed in which silver bromoiodide tabular grains account for greater than 97 percent of total grain projected area and the...
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5248577 |
Reactant concentration control method and apparatus for precipitation reactions
A method and an apparatus for controlling reactant ion concentration within a precipitation vessel to optimize the reactions occurring therein is disclosed. In one important implementation, the...
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5248587 |
Low temperature growth emulsion making process
The invention provides an improved method of forming monodispersed tabular silver halide grains. These and other objects of the invention are generally performed by providing a method of forming...
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5248588 |
Silver halide photographic material
Disclosed is a silver halide photographic material, comprising a support having thereon (i) a silver halide emulsion layer which contains negative-working internal latent image-forming silver...
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5246827 |
Preparation of photosensitive silver halide materials with a combination of organic ripening agents
A photosensitive silver halide emulsion is prepared by providing an emulsion containing an anionic acid-substituted and a neutral organic ripening agent and then growing silver halide grains in the...
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5246826 |
Process of preparing photosensitive silver halide emulsions
The present invention relates to a process of preparing a photosensitive silver halide emulsion. In this process, an emulsion comprising an acid substituted organic ripening agent and a dispersing...
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5244782 |
Process for producing silver halide photographic emulsion
A silver halide photographic material composed of a support having thereon at least one silver halide emulsion layer containing substantially normal silver halide grains having a (111) plane and a...
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5244783 |
Rod-shaped hollow silver halide emulsions and method of making
The present invention is directed to hollow rod-shaped silver halide grains for use in photography and a process for preparation of hollow, rod-shaped grains. The rods have a hexagonal outer...
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5240825 |
Preparation of silver halide grains
The present invention relates to a process of preparing radiation sensitive silver halide grains containing at least 90 mole % silver iodide and having a morphological configuration of four...
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5240827 |
Photographic element containing large, selenium-sensitized silver chloride grains
This invention describes the use of a selenium sensitizer on a large grain size silver chloride emulsion. The process of the invention provides a large and unexpected speed increase on silver...
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5240828 |
Direct reversal emulsions
Room light handleable direct reversal silver bromide emulsions, with up to 70 mole percent chloride, have a broad Dmin window when from 1×10 -6 to 1×10 -4 mole per silver mole of a polybromo...
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5238805 |
Method for preparing silver halide emulsion
A method for preparing silver halide emulsion grains by a crystal growth method comprising feeding fine silver halide grains to a reaction vessel containing seed crystals of a silver halide...
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5238807 |
Silver halide photographic material
A silver halide photographic material low in fogging generation and high in sensitivity comprising a silver halide emulsion selenium sensitized with at least one compound selected from the group...
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5238806 |
Silver halide photographic light-sensitive material
There is disclosed a silver, halide photographic light-sensitive material having a high sensitivity and gradation as well as a low fog while exhibiting an excellent aging stability. The...
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5236817 |
Tabular grain emulsion containing reversal photographic elements exhibiting improved sharpness in underlying layers
A multicolor photographic element capable of forming a viewable reversal dye image is disclosed comprising a support and, coated on the support, a blue recording yellow dye image forming layer...
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5230995 |
Method of manufacturing silver halide emulsion and a color photographic material having the emulsion manufactured by the method
In a method of manufacturing a silver halide emulsion which comprises a silver chlorobromide having a silver chloride content of 90 mol% or more or silver chloride and said silver halide containing...
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