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Patent Searching and Data


Matches 501 - 550 out of 16,996

Document Document Title
WO/1993/011462A1
A method for carrying out additional processing of cinematographic film, wherein film sections of arbitrary length are processed by passing them through preselected chemical baths (9, 10, 11), and an equipment for realization of this met...  
WO/1993/011458A1
A photographic element is described with improved speed in the blue and ultra-violet region of the electromagnetic spectrum. The spectral response of the photographic element is enhanced with at least one dye represented by formula (I), ...  
WO/1993/011467A1
The present invention provides a photographic material comprising on a support a silver halide emulsion sensitized to light of wavelengths between 600 nm and 850 nm characterized in that said silver halide emulsion comprises a red sensit...  
WO/1993/011460A1
A redox-amplification solution comprising hydrogen peroxide, or a substance capable of releasing hydrogen peroxide, or reducing agent, such as a colour developing agent, and in combination two or more sequestering agents for complexing w...  
WO/1993/011457A1
A wide latitude, high resolution radiographic system having a relative speed of at least 150 and a contrast transfer function of at least 0.30 when measured at 6 line pairs per millimeter, comprises at least one X-ray intensifying screen...  
WO/1993/011456A1
An improved system for rapid access processing of photographic silver halide elements comprises a hydrazine-containing silver halide element in combination with a developer solution comprising at least one ascorbic acid developing agent ...  
WO/1993/010482A2
Disclosed are novel radiation-sensitive negative-working surface-sensitive emulsions and materials exhibiting reduced pressure sensitivity. One aspect of the present invention is directed to silver halide crystals with low propensity tow...  
WO/1993/009063A1
Ammonium pentachloromonoaquorhodate(III), (NH4)2RhCl5(H2O), is a useful photograpic chemical. Small amounts of rhodium-containing, water soluble species remain in solution in the process liquor after synthesis. Most of the soluble rhodiu...  
WO/1993/009468A1
A high resolution radiography system is presented utilizing an intensifying screen incorporating a UV emitting phosphor. The photographic element exhibits enhanced sensitivity to the emission of the phosphor and further comprises at leas...  
WO/1993/008513A1
This invention relates to a photocopy prevention film applied to a document to be protected that comprises a microlens array (11) in combination with a semi-transparent mask (10) located in the back focal plane of the array. The document...  
WO/1993/006527A1
The invention relates to a photographic slide, the image on which reproduces not only all the hues but also all the tones of the image brillance to supplement them by an additional covering image with all the image points in register, th...  
WO/1993/005443A1
A radiographic element comprises a polyester support having double sided silver halide emulsion layers. An ultraviolet light absorbing methine compound is admixed in the support or in a layer interposed between the emulsion layers in an ...  
WO/1993/005444A1
A radiographic element comprises a polyester support having double sided silver halide emulsion layers. An ultraviolet light absorbing methine compound is copolymerized with the support and is present in an amount sufficient to reduce th...  
WO/1993/004401A1
A deletion fluid for lithographic printing plates comprising a silver image formed by the silver salt diffusion transfer process comprising an aqueous solution containing iodine and an iodide salt characterised in that it contains from 1...  
WO/1993/003417A1
A process for regenerating spent bleach fixer by recovering silver sulfide from a spent solution is described. The process is particularly suited for treating the bleach fixer solution in a manner which enables recycling of the solution ...  
WO/1993/003416A1
In photographic processing apparatus, the processing solutions need to be replenished as they are used up. It is known to effect replenishment of chemicals in a paper processor by determining the amount of exposure given to the paper in ...  
WO/1993/003415A1
In photographic processing apparatus, by-products are produced due to the chemical reactions which occur during the processing of photographic materials. It is known to remove some of these by-products in accordance with the area of phot...  
WO/1993/002391A1
It is known to treat the effluent resulting from photographic processing apparatus. Such treatment takes the form of either neutralization where the effluent is mixed with a neutralizing solution prior to disposal, or evaporation where t...  
WO/1993/001521A1
An X-ray imaging system comprising a pair of UV emitting screens in combination with a double-side coated, silver halide film element wherein said silver halide is chloride or tabular, is described. This system has superior image quality...  
WO/1993/001522A1
An X-ray film/screen combination which will produce an image with very high sharpness is described. This combination comprises a screen comprising a UV emitting phosphor with the major emission peak between 300-390 nm dispersed in a bind...  
WO/1993/001520A1
Substituted diaminedithio-containing compounds useful for improving the speed of a silver halide emulsion are described. These compounds can be added in small amounts to the emulsion preferably after the emulsion has been chemically sens...  
WO/1993/000610A1
A process for treating a photographic developer solution containing silver ion comprises contacting the solution with a silver recovery element (10), which comprises a substrate (12) having thereon a hydrophilic colloid layer (16) contai...  
WO/1993/000609A1
A silver recovery element (10) for treating a photographic developer solution containing silver ions comprises a substrate (20) having thereon a hydrophilic colloid layer containing physical development nuclei. The invention also compris...  
WO/1993/000611A1
An element and a process for recovering silver from a photographic developer solution containing silver ions. The silver recovery element (10) comprises a support (12) having a hydrophilic colloid layer (16) containing physical developme...  
WO/1992/022852A1
A photographic processing apparatus for processing a photosensitive material (14) with a processing solution (16) including first and second processing ingredients (18, 20) includes a processing tank (10) for holding the processing solut...  
WO/1992/021733A1
There is disclosed methods for fabricating electrophoretic displays (10). Essentially the methods employ selective materials such as different metals (15, 18, 19, 20) which are capable of being etched by different etchants. In this manne...  
WO1992015957A3  
WO/1992/020013A1
Purpose: An automatic developing apparatus for a silver halide photosensitive material, and more particularly an automatic developing apparatus, in which the automatic developing apparatus is made compact in size and the work efficiency ...  
WO/1992/015957A2
A method of predictably producing accurate photoprocessing reference image tool photographs to be used for adjusting the parameters of photographic devices, in which a first-generation camera-original image of a scene containing preselec...  
WO/1992/012463A1
The invention provides a method for reducing carryover reagents in the wet processing of a gelatin-based photographic material which method comprises causing the swellability of the gelatin layer in a first treatment bath to be reduced a...  
WO/1992/011208A1
A method of treating chemical liquid effluent to render it more environmentally acceptable, comprising the addition of hydrogen peroxide, or a compound capable of liberating hydrogen peroxide, to the effluent to react with and break down...  
WO1992008165A3  
WO/1992/009933A1
Radiant energy is directed from a source (14, 16) to an illumination plane (28) where the light receiving ends of groups (36) of optic fibers are arranged in coplanar striations (100), after which the radiant energy passes through the gr...  
WO/1992/009009A1
A method of processing an imagewise exposed photographic silver halide material in a system which includes circulation and replenishment of the processing solution employed in at least one processing step characterised in that said proce...  
WO/1992/008165A2
A photographic element including a light-sensitive layer and a transparent magnetic layer wherein the magnetic particles in the transparent binder are cobalt suface treated gamma iron oxide (Fe2O3) having a specific area of at least 30 m...  
WO/1992/007300A1
A method of photographic colour processing which comprises a bleach step wherein the bleach solution comprises hydrogen peroxide, or a compound which releases hydrogen peroxide, and halide ions and which has a pH in the range of 5 to 11 ...  
WO/1992/006411A1
The present invention relates to a dispersion of a photographic stabilizer and/or a photographic coupler. It has been found that the propensity of a dispersion to crystallize is much reduced if the aqueous phase is relatively increased b...  
WO/1992/004660A1
A method of treating photographic effluent by precipitating or otherwise removing harmful pollutants to provide an environmentally acceptable liquid phase and a disposable solid phase. The pollutants are removed from the effluent by the ...  
WO/1992/004659A1
A method for bleaching a silver image wherein the image is treated with a first solution comprising iodine and an iodide salt and then the iodine stain is removed by treating it with a second solution comprising ascorbic acid ans sulphit...  
WO/1992/001635A1
Anions containing sulfur and oxygen, e.g. thiosulfate, can be catalytically reduced using a protonated anion ion exchange resin as a catalyst. The process is preferably conducted in an aqueous system and at a pH below about 8.  
WO/1992/001242A1
The present invention relates to a reversal color photographic material. The material contains three elements which are photosensitive to the three regions of the spectrum respectively. Each element contains at least two emulsions having...  
WO/1991/020015A1
In a method of forming a contrast mask of a photographic original (17) in a photochromic body (11) by illuminating the body through the original, the body (11) is associated with a surface (20) which reflects into the body (11) radiation...  
WO/1991/018320A1
The invention is generally accomplished by providing a tabular-grain silver halide emulsion in which at least 50 percent of the total grain projected area is accounted for by tabular grains having a mean diameter of at least 0.6 micromet...  
WO/1991/017479A1
In a photographic process which includes a developer and an amplification bath, a photographic material is passed from the developer to the amplification bath and an absorbing agent is used to treat the amplification bath to remove any c...  
WO/1991/017478A1
The amount of retained developer in photographic material is reduced by subjecting a processing solution through which the material passes after development but before washing to the influence of an absorbing agent. The absorbing agent m...  
WO/1991/015806A1
The invention provides a chemical reaction system and an apparatus exemplified by a photographic process wherein a photo-sensitive paper substrate (5) is passed through a developing solution (2) contained in a main tank (1) and then thro...  
WO/1991/015805A1
A method and apparatus for preventing reproduction of printed matter on a substrate by photocopying, telefaxing and the like. A substrate is provided with at least one main surface and a photochromic dye is applied to the one main surfac...  
WO/1991/014205A1
The invention resides in treating an image-wise exposed and colour developed photographic element with a bleaching agent and a fixing agent. The fixing agent comprises an aliphatic thiol as accelerator. The accelerator present in the fix...  
WO/1991/013834A1
A method and an apparatus for treatment of liquid wastes from photographic processes are described, in which the wastes to be treated are (a) subjected to an oxygen oxidation (3) as well as (b) an ozone oxidation (7), (c) optionally from...  
WO/1991/013383A1
It is often difficult to identify a particular frame in a film strip for reprinting. Described herein is a method for carrying out such identification using a reference frame number and incrementing/decrementing the frame numbers accordi...  

Matches 501 - 550 out of 16,996