Patents for G03C 7 - Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes (10,584)
02/1979
02/13/1979US4139383 Dye diffusion transfer employing pyridine azo dye
02/13/1979US4139379 Photographic elements containing ballasted electron-accepting nucleophilic displacement compounds
02/13/1979CA1048315A1 Diffractive subtractive color filtering technique
02/07/1979EP0000571A1 Process for the production of an original
02/06/1979US4138557 2-Equivalent yellow couplers
02/06/1979US4138265 Antifoggants in certain photographic and photothermographic materials that include silver salts of 3-amino-1,2,4-mercaptotriazole
02/06/1979US4138264 Silver halide emulsion containing two equivalent type coupler for use in photography
02/06/1979US4138263 Photographic silver halide material with 2-equivalent, N-heterocyclic yellow couplers
02/06/1979US4138260 Photographic film unit with crosslinked neutralization layer
02/06/1979US4138259 Color photographic light-sensitive material
02/06/1979US4138258 Multi-layered color photographic materials
02/06/1979US4138257 Process for the treatment of photographic materials
02/06/1979US4138256 Method of processing photographic silver dye bleach materials
02/06/1979CA1047821A1 Azo magenta dye-providing compounds
01/1979
01/30/1979US4137080 Polyfunctional coupler and developer
01/23/1979US4135929 Photographic sulfonamido compounds and elements and processes using them
01/23/1979CA1046826A1 Photo-sensitive composition for dry formation of image
01/16/1979US4134768 Photographic uses of polyvinyl-phenylmercapto-tetrazoles
01/16/1979US4134767 Bleaching, cyanine dyes, iron salt of edta
01/16/1979US4134766 Color photography, phenol coupler
01/09/1979US4133958 Splittable 1,3-diazolone-2-ring
01/09/1979US4133955 Process for the production of 2-equivalent yellow couplers
01/09/1979US4133686 Color photographic light-sensitive element
12/1978
12/26/1978US4131735 Preparation of α-acylacetamides using tetramethyl guanidine condensing agent
12/26/1978US4131464 False color photographic element and process
12/19/1978US4130427 Silver halide emulsion containing two-equivalent color couplers for yellow
12/19/1978US4130347 Fine-line diffractive subtractive color filters
12/12/1978US4129739 Amidine compounds
12/12/1978US4129446 Color photographic recording material
12/12/1978CA1044066A1 Scavenger for integral color transfer assemblage
12/05/1978US4128464 Process for regenerating bleaching-fixing solution
12/05/1978US4128427 Silver halide emulsions containing polymeric color couplers
12/05/1978CA1043619A1 Photopolymerizable copying composition containing copolymeric binder
12/05/1978CA1043618A1 Photographic material containing yellow couplers
11/1978
11/28/1978US4127413 Method for the addition of photographic addenda
11/21/1978US4126462 A substituted 5-pyrazolone or pyrazolobenzimidazole coupler
11/21/1978US4126461 Black-and-white photographic elements and processes
11/14/1978US4125402 Method of processing silver dye bleaching materials and preparations suitable for the dye and silver bleaching
11/07/1978US4124396 2,5-Dicarbonylaminophenol dye-forming couplers
11/07/1978US4124391 Process for processing color photographic material
10/1978
10/31/1978US4123281 Photographic silver halide color material containing fast-acting hardener and 2-pyrazolin-5-one coupler precursors
10/31/1978CA1041345A1 Photographic light sensitive element containing yellow color coupler and method for forming yellow photographic images
10/31/1978CA1041343A1 Process of forming yellow photographic images
10/24/1978US4122027 Contrast ratios
10/24/1978US4121939 Color photographic light-sensitive material containing +-alkyl substituted hydroquinone
10/24/1978US4121934 Coupling compound which forms colorless compound with oxidized developer
10/24/1978CA1041116A1 Color developer compositions containing improved yellow dye-forming coupler
10/17/1978US4120725 Color photographic light-sensitive material
10/17/1978US4120723 Pyrazolone coupler, phenolic color image stabilizer
10/10/1978US4119464 Pre-hardener of complex-forming salt of aluminum, chromium, or zirconium
10/10/1978US4119462 Color photographic developer composition
10/03/1978US4118232 Photographic material containing sulphonic acid group containing disazo dyestuffs
10/03/1978CA1039556A1 Hybrid color photographic elements and processes for developing same
09/1978
09/26/1978CA1039291A1 Substituted type photographic yellow coupler
09/19/1978US4115121 Silver halide color photographic material containing yellow coupler
09/12/1978US4113954 Multistage; reacting an alkyl b-alkoxy-b-iminopropionate salt with an aniline
09/12/1978US4113495 2,4,4-trimethyl-2-(2,5-dihydroxyphenyl)-6-hydroxy-chromans
09/12/1978US4113491 Color photographic developing composition
09/12/1978US4113490 Method for processing light-sensitive silver halide photographic materials
09/12/1978US4113488 Phenolic compound and synergistic sulfide or sulfoxide
09/12/1978US4113485 Process for making photo-mechanical drop-out mask
09/05/1978US4111699 O-nitro-o-azaarylidene photobleachable dyes and photographic elements utilizing them
08/1978
08/22/1978US4108850 Positive-working immobile photographic azo compounds
08/22/1978US4108663 Photographic developing agents, process for developing using same, and light-sensitive materials containing same
08/15/1978US4106942 Compounds containing sulfide, ketone, and amide groups
08/15/1978US4106940 N-alkylphthalimide derivative oil former
08/08/1978US4105656 Process for preparing 3-n-monosubstituted amino-4-substituted-5-pyrazolones
08/08/1978US4105533 Electrodialysis cell and method for producing cationic permeable membranes used therein
08/08/1978US4105453 Basic mordant, acidic dye, hydrophilic colloid containing a phenoxy(poly)ethoxy sulfate or sulfonate, naphthalene sulfonate layer
08/08/1978US4105452 Multi-layered color photographic light-sensitive material
08/08/1978US4105318 Pinhole microfiche recorder and viewer
07/1978
07/18/1978US4101364 Method of an apparatus for producing film-laminated base plates
06/1978
06/27/1978US4097278 Cobalt/iii/ complex oxidizer, photography
06/20/1978US4095984 Benzothiazolinylidene(amino) benzotriazoles
06/20/1978US4095983 Photographic material comprising cyclic sulfonamide substituted yellow color couplers
06/20/1978US4095982 Method of developing a silver halide photographic light-sensitive material
06/13/1978US4094682 Method for processing light-sensitive silver halide photographic material
05/1978
05/16/1978US4089747 Oxidation of dye-providing materials, a sulfonyl hydrazone and a coupler or a triarylimidazole
05/16/1978US4089685 Reversal imaging process including redox amplification
05/09/1978US4088491 Light sensitive photographic material
05/09/1978US4088486 Process of bleaching silver images to form dye images using cobalt complexes and peroxides
04/1978
04/25/1978US4086094 Hydrophilic colloid layer
04/18/1978US4085418 Color image pick-up system using strip filter
04/18/1978US4084969 Color photographic process
04/11/1978US4083723 P-phenylenediamine and derivatives and a compound with a carboxy and a phosphono group as a color developer
04/11/1978US4083721 Photographic phenolic couplers with amido coupling-off groups
04/04/1978US4082553 Two silver halide emulsion layers with iodide ion migration between them
03/1978
03/28/1978US4081275 Photographic film units containing colorless para-nitrobenzylidene dye-forming compounds
03/21/1978US4080504 Novel photographic color coupling compounds
03/21/1978US4080211 Polymerization of monomeric color couplets
03/21/1978US4080209 Photographic light-sensitive material
03/21/1978US4080207 Radiation-sensitive compositions and photographic elements containing N-(acylhydrazinophenyl) thioamide nucleating agents
03/14/1978US4078936 Silver halide emulsion containing two-equivalent yellow coupler
02/1978
02/28/1978US4076533 Silver halide emulsion containing two-equivalent coupler
02/21/1978US4075022 Aqueous dispersions of photographic ingredients
02/21/1978US4075021 Compound which releases a substance which promotes bleaching of developed silver
02/21/1978US4075014 Hydroxyalkylamine development accelerator; positives
02/14/1978US4073651 Image-forming layer containing silver halide emulsion and magenta coupler
02/14/1978US4073650 Method of recording on a microfiche
02/07/1978US4072525 Silver halide photographic material containing two-equivalent color coupler
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