U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Did You Know...

...that two musicians were responsible for the invention of color print film? Fascinated by photography, Leopold Godowsky and Leopold Mannes worked together to produce an easy-to-use, practical color film. They worked full time as music teachers and gave concerts while experimenting during their off hours in Mannes' kitchen. Their success earned them full-time, well-paying jobs at Kodak and their efforts resulted in Kodachrome film, which was introduced in 1935.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 430/430 - Bleaching


Subclass of Class 430 - Radiation imagery chemistry: process, composition, or product thereof
Definition: Processes involving rendering the imaged radiation sensitive
No. of patents: 281
Last issue date: 04/01/2008


1                
NumberTitleIssue Date
7351522Concentrated processing composition for silver halide color paper and method of processing
An object of the present invention is to provide a method of processing silver halide color paper that ensures (a) promptness such that finished prints can be handed at shop to customers, (b) small installation area for mini-labs, (c) processing solution stability c...
04/01/2008
7312013Photoreactive composition
This invention provides a photoreactive composition in which reaction of a hydrolyzable metal compound takes place by irradiation of light. A photoreactive composition, which comprises a hydrolyzable metal compound (A) comprising a metal atom and a hydrolyzab...
12/25/2007
7108962Photographic processing composition and image-forming method using the same
A photographic processing composition, containing at least one compound of formula (I) or (II): A1-X-L-Y-A2  (I) wherein A1 and A2 each are a specific aryl or aromatic heterocyclic group; L is a...
09/19/2006
7045532ACE-2 modulating compounds and methods of use thereof
ACE-2 inhibitors for the treatment of body weight and related disorders are disclosed. ACE-2 inhibitors include peptides and small molecules. Examples of small molecule ACE-2 inhibitors include compounds of formula (I): Z-Λ  (I) Wherein Z is...
05/16/2006
6958208Methods of providing color photographic image using acidic stop and rinse solutions
Photographic processing of color photographic materials can be carried out using polyphosphonic acids or salts thereof in acidic “stop” solutions or wash solutions after color development. When used in acidic stop solutions, the polyphosphonic acid is preferably...
10/25/2005
6919170Method of manufacturing a bleach composition for processing a color photographic material
The present invention relates to methods useful for processing a color photographic material. A method of manufacturing a ferric 1,3-PDTA complex is provided. The method includes reacting ferrous bromide with unchelated 1,3-PDTA, thereby forming a ferrous 1,3-PDTA c...
07/19/2005
6828084Odorless photographic bleaching composition and color photographic processing
A photographic bleaching composition has reduced odor and acceptable storage stability. It comprises an iron-ligand complex bleaching agent, a rehalogenating agent, and a phthalic acid or salt thereof. This bleaching composition can be used in various photographic p...
12/07/2004
6824965Bleach bath
A bleach or bleach/fixing solution for processing photographic silver halide materials which, relative to the silver halide content of the unprocessed material, exhibit prior to the bleaching step a content of silver arising from development of at least 65 mol %, in...
11/30/2004
6811930Post-exposure treatment method of silver halide emulsion layer, hologram manufactured using the method, and holographic optical element including the hologram
A post-exposure treatment method of a silver halide emulsion layer in the manufacture of a hologram, a hologram manufacturing using the post-exposure treatment method, and a holographic optical element including the hologram are provided. The post-exposure treatment...
11/02/2004
6790600Method of color photographic processing for color photographic papers
A method of processing photographic color papers is carried out using a photographic bleach-fixing composition in a bleach-fixing step that is carried out for less than 60 seconds. The bleach-fixing composition comprises certain aliphatic or aromatic sulfur-containi...
09/14/2004
6645696Photoimageable composition
The use of selected buffering amines in a photoimageable composition prevents process bias which with conventional photoresists causes designed features to be distorted, especially in corners and high resolution features. It is believed that the amines re...
11/11/2003
6569585Thermal imaging process and products using image rigidification
Improved processes and products for laser thermal imaging are described. These improved processes and products utlilize an image rigidification element and significantly reduce halftone dot movement, swath boundary cracking and banding....
05/27/2003
6482579Method of processing color negative elements
Color negative photographic elements can be effectively processed to provide negative color images using bleaching or bleach-fixing compositions in which the primary bleaching agent is a ferric complex of 1,3-propylenediaminetetraacetic acid or a salt the...
11/19/2002
6451519Bleach regenerator composition and its use to process reversal color photographic elements
A ferric-EDTA bleach regenerator composition can be mixed with bleach overflow to provide a bleach replenisher for reversal color silver halide photographic processes. The bleach regenerator composition has a critically controlled pH between about 6.0 and...
09/17/2002
6440653Method of producing a photographic image
A method of producing a photographic image in an imagewise exposed photographic material comprising one or more silver halide emulsion layers comprises developing the material with a developer solution containing a silver halide developing agent, applying...
08/27/2002
6410202Thermal switchable composition and imaging member containing cationic IR dye and methods of imaging and printing
An imaging member, such as a negative-working printing plate or on-press cylinder, can be prepared with a hydrophilic imaging layer comprised of a heat-sensitive hydrophilic polymer having ionic moieties and an infrared radiation sensitive dye having mult...
06/25/2002
6376161Image information recording method
An image information recording method is disclosed. The method comprises the steps of imagewise exposed to light a silver halide photographic light-sensitive material comprising a support having thereon a light-sensitive layer comprising light-sensitive s...
04/23/2002
6365332Photographic bleaching compositions and method of processing color reversal elements
Color reversal photographic elements can be effectively processed to provide positive color images using bleaching compositions in which the primary bleaching agent is a ferric complex of 1,3-propylenediaminetetraacetic acid or a salt thereof. Any potenti...
04/02/2002
6200666Thermal transfer compositions, articles, and graphic articles made with same
Thermal transfer articles of the invention comprising a carrier, optionally a release layer, a color layer releasably adhered thereto, and optionally an adherence layer on the bottom side of the color layer. Also graphic imaging compositions and methods f...
03/13/2001
6197483Photographic processing using biodegradable bleaching agent followed by fixing
Color photographic silver halide materials, especially color photographic papers, are processed effectively with reduced iron retention after bleaching with a biodegradable bleaching composition. Bleaching is accomplished using an iron chelate of a biodeg...
03/06/2001
6190843Hydrolyzed water-resistant protective overcoat for an imaging element
The present invention relates to imaging elements, including photographic elements and recording media, having a protective overcoat that resists fingerprints, common stains, and spills. More particularly, the present invention provides a processing-solut...
02/20/2001
6153364Photographic processing methods using compositions containing stain reducing agent
Specific aromatic compounds having an extended planar π system are useful as spectral sensitizing dye stain reducing agents in photographic processing compositions and methods for providing color or black-and-white images in various photographic silver h...
11/28/2000
6136516Process for processing a photographic silver halide material
A process for processing exposed photographic silver halide materials at least comprising the stages color development, stopping, bleaching and fixing using a bleaching bath with hydrogen peroxide as the active substance, characterized in that the stop ba...
10/24/2000
6096487Cyan dye recovery using ferric aminopolycarboxylic acid bleaching composition
Cyan dye density can be maximized in color developed silver halide photographic color materials and bleaching accelerated by contacting the materials with a bleaching or bleach-fixing composition comprising a mixture of a ferric complex of an aminopolycar...
08/01/2000
6077650Stabilized bleaching compositions and method of processing color elements
Color photographic elements can be effectively processed to provide color images using biodegradable bleaching compositions in which the bleaching agent includes a pyridinecarboxylic acid or 2,6-pyridinedicarboxylic acid chelating ligand. The bleaching co...
06/20/2000
6040122Bleaching bath
A bleaching bath for processing photographic silver halide materials with hydrogen peroxide as the active substance, characterised in that it contains at least one organic compound having a sulfinic acid function and a further functional group with free e...
03/21/2000
6015653Method for processing transparent silver halide photographic light-sensitive material and product thereby
A method for processing a transparent silver halide color photographic material is disclosed. The transparent silver halide photographic light-sensitive material is treated with a processing solution containing a compound represented by Formula (I). Formu...
01/18/2000
6013422Method of processing color reversal films with reduced iron retention
Color reversal photographic elements can be effectively processed to provide color positive images using biodegradable bleaching compositions when the following fixing compositions contain an uncomplexed aminodisuccinic acid additive. The presence of the ...
01/11/2000
6004731Processing method of silver halide color photographic light-sensitive material and desilvering processing composition
A method for processing a silver halide color photographic light-sensitive material comprising a support having thereon at least one light-sensitive silver halide emulsion layer, the method comprising the steps of: exposing the light-sensitive material; c...
12/21/1999
5972575Method for the selective silvering of photographic materials
Methods of selectively silvering photographic materials. A method for selective reflective silvering of color negative photographic materials, whereby an attractive image comprising reflective silver, black, and full color areas may be obtained, comprises...
10/26/1999
5972579Periodate photographic bleaching methods
Color photographic elements are processed with an acidic periodate bleaching composition that may also include chloride ions as a rehalogenating agent. Bleaching is carried out after color development is stopped with an acidic stop bath. The processing me...
10/26/1999
5928844Method of photographic processing using spray wash after bleaching
A color photographic silver halide material is processed effectively without formation of rust after the bleaching step. Bleaching is accomplished using an iron chelate of a biodegradable aminopolycarboxylic acid chelating ligand that has a tendency to fo...
07/27/1999
5925504Method of forming a photographic color image
A silver halide material can be processed using a redox amplification developer solution and a bleach solution. Both solutions contain a peroxide oxidant....
07/20/1999
5885757Aminopolycarboxylic acid chelating agent, heavy metal chelate compound thereof, photographic additive and processing method
An aminopolycarboxylic acid compound represented by the following formula or analogous thereof: ##STR1## The aminopolycarboxylic acid compound of the present invention can be used as a chelating agent for various metals, which is excellent in the ...
03/23/1999
5885758Periodate photographic bleaching method without acidic prebath
Color photographic elements are processed with a highly acidic periodate bleaching solution including a rehalogenating agent and a strong acid. Bleaching is carried out after color development without any intervening processing steps, such as an acidic pr...
03/23/1999
5876906Method of processing photographic silver halide materials
High silver chloride photographic materials can be processed with a process comprising two fixing steps, one before and another after a hydrogen peroxide bleaching step. The first fixing step utilizes a sulfite fixing agent....
03/02/1999
5866308Production of a color photographic image
In the production of a colour photographic image in a continuous process comprising at least the stages a) treatment with a bath containing H2 O2 or a bath containing a compound which liberates H2 O2 and b) fixi...
02/02/1999
5837432Photographic reversal process prebleach concentrate and method of use
A conditioning or bleach accelerating solution is prepared by diluting a concentrate up to 25 times. The concentrate contains a formaldehyde bisulfite precursor salt at from 200 to 600 g/l, sulfite ions at 0 to 200 g/l, a bleach accelerating agent at from...
11/17/1998
5834170Photographic bleach regenerator composition formulated with bromide ion from two sources
A ferric-EDTA bleach regenerator composition can be made with bleach overflow to provide a bleach replenisher for reversal color silver halide photographic processes. The bleach regenerator composition has a critically controlled pH between about 6.0 and ...
11/10/1998
5821042Silver halide color photographic element having improved bleachability
A multilayer silver halide color photographic element comprises a support having coated thereon a silver antihalation layer, an interlayer, at least two red-sensitive silver halide emulsion layers, at least two green-sensitive silver halide emulsion layer...
10/13/1998
1                
 
Sign InRegister
Username  
Password   
forgot password?