| Patents for G03C 1 - Photosensitive materials (26,817) |
|---|
| 03/05/1991 | US4997750 Radiographic elements with selected speed relationships |
| 03/05/1991 | US4997743 Improved contrast by incorporating a hydrazide compound |
| 03/01/1991 | CA2023292A1 Photographic emulsions containing internally modified silver halide grains |
| 03/01/1991 | CA2022826A1 Photographic emulsions containing internally modified silver halide grains |
| 02/27/1991 | EP0414476A1 Process for the preparation of photochromic spiropyran compounds |
| 02/27/1991 | CN1011833B Photographic elements sensitive to near infrared |
| 02/26/1991 | US4996301 Polyfunctional α-diazo-β-keto esters and their use in light-sensitive compositions |
| 02/26/1991 | US4996141 In silver halide negative emulsion |
| 02/26/1991 | US4996140 Adding spectral sensitivity dyes |
| 02/26/1991 | US4996138 Silver halide photographic light-sensitive material |
| 02/26/1991 | US4996137 Developing exposed material containing emulsion layer with hexagonal tabular silver bromide core/shell grains |
| 02/26/1991 | US4996130 Colloid and emulsion layers containing at least one of a hydrazine derivative and polyacrylamide derivative |
| 02/21/1991 | WO1991002289A1 Photographic support material comprising an antistatic layer and a barrier layer |
| 02/21/1991 | WO1991000861A3 Photochromic spiropyran compounds |
| 02/20/1991 | EP0413332A1 Support for photographic paper |
| 02/20/1991 | EP0413314A1 Silver halide photographic material |
| 02/20/1991 | EP0413204A2 Colour photographic silver halide material |
| 02/19/1991 | WO1991002704A1 Ferritin analogs |
| 02/19/1991 | US4994365 Nucleating agents |
| 02/19/1991 | US4994364 Direct positive image forming method |
| 02/19/1991 | US4994362 High silver halide chloride content color photographic light-sensitive materials including cyan couplers and nitrogen-containing heterocyclic mercapto compounds |
| 02/19/1991 | US4994358 Direct positive color light-sensitive material |
| 02/19/1991 | US4994357 Free from surface defects and has excellent surface smoothness |
| 02/19/1991 | US4994356 Stable optical filters |
| 02/19/1991 | US4994353 Subbing layer containing vinylidene chloride copolymerized with acrylate and a substituted chlorotriazinyl compound; dimensional stability |
| 02/19/1991 | US4994352 Optical memory media |
| 02/19/1991 | US4994214 Process for controlling the curl of photographic film |
| 02/19/1991 | US4994147 Photographic reflection print material with improved keeping properties |
| 02/19/1991 | US4993654 Method of winding film on a spool and loading the spool with the film into a magazine, and a system for carrying out the method |
| 02/19/1991 | CA2064069A1 Ferritin analogs |
| 02/19/1991 | CA1280442C Stabilization of ketazine dyes |
| 02/19/1991 | CA1280312C Emulsions and photographic elements containing ruffled silver halide grains |
| 02/19/1991 | CA1280285C Photothermographic element |
| 02/13/1991 | EP0412851A2 Photosensitive member and multi-color image forming method |
| 02/13/1991 | EP0412379A1 Silver halide colour photographic light-sensitive materials |
| 02/13/1991 | CA2023055A1 Process for preparing 7-hydroxy-1,2-naphthoquinone-2-diazide-4-sulfonic acid or salts thereof |
| 02/12/1991 | US4992547 Aminoaryl ketone photoinitiators |
| 02/12/1991 | US4992491 Cellulose ester-copolyester ether blends |
| 02/12/1991 | US4992362 Precipitation of silver halide in presence of gelatin; uniform grain distribution |
| 02/12/1991 | US4992357 Silver halide color photographic light-sensitive material |
| 02/12/1991 | US4992355 System for the production of dot-etched lithographic films |
| 02/12/1991 | US4992352 Light-sensitive material containing silver halide, reducing agent and polymerizable compound, and image-forming method employing the same |
| 02/12/1991 | US4992347 Marking |
| 02/12/1991 | US4991919 Optical head apparatus including concentric, periodic grating in a waveguide |
| 02/12/1991 | CA1280023C Process for production of positive images |
| 02/06/1991 | EP0411885A1 Novel photochromic spiropyran compounds |
| 02/06/1991 | EP0411884A1 Novel photochromic spiropyran compounds |
| 02/06/1991 | EP0411819A2 White light handleable negative-acting silver halide photographic elements |
| 02/06/1991 | EP0411324A1 Silver halide color photographic materials |
| 02/06/1991 | EP0411157A1 Spiropyran compounds |
| 02/06/1991 | EP0411089A1 Improved photosensitive emulsion for holographic plates and method. |
| 02/05/1991 | US4990931 Image forming method and apparatus therefor |
| 02/05/1991 | US4990440 Photographic silver halide emulsion containing gelatine |
| 02/05/1991 | US4990439 Silver halide light-sensitive photographic material |
| 02/05/1991 | US4990438 Containing active halide or vinyl type gelatin hardener; fogging reatment; storage stability |
| 02/05/1991 | US4990437 Silver halide photographic light-sensitive material |
| 02/05/1991 | US4990435 Silver halide photographic element, photographic coating composition and process to prepare an aqueous dispersion of a hydrophobic compound |
| 02/05/1991 | US4990434 Polyvinylpyrrolidone, acrylate and acrylic acid copolymer binders; dimensional stability; hydrophobic |
| 02/05/1991 | US4990432 Silver halide photographic light-sensitive material having a reflective base and an antihalation layer having a specified thickness |
| 02/05/1991 | US4990431 Mixing aqueous surfactant solution with solution of solvent, base, photographic material; neutralizing to precipitate particles |
| 02/05/1991 | US4990429 Process for the production of negative relief copies utilizing reversal processing |
| 02/05/1991 | US4990375 Method of forming receptor sheets with an image-bearing non-receptor surface |
| 02/05/1991 | US4989802 Core for web material |
| 02/03/1991 | WO1991002288A1 Thermally stable carbazole diazonium salts as sources of photo-initiated strong acid |
| 02/03/1991 | CA2064183A1 Thermally stable carbazole diazonium salts as sources of photo-initiated |
| 02/01/1991 | CA2020382A1 White light handleable negative-acting silver halide photographic elements |
| 01/30/1991 | EP0410820A2 Silver halide photographic material |
| 01/30/1991 | EP0410754A2 Color photographic element and process |
| 01/30/1991 | EP0410753A1 Photographic recording materials with latent image stability |
| 01/30/1991 | EP0410752A1 Photographic recording materials with enhanced latent image stability |
| 01/30/1991 | EP0410450A2 Method for processing silver halide color photographic materials |
| 01/30/1991 | EP0410410A1 Silver halide emulsion comprised of grains of uniform shape and size |
| 01/30/1991 | EP0410383A1 Silver halide photographic material having improved keeping quality |
| 01/30/1991 | EP0410354A1 Processing of silver halide color photographic material |
| 01/30/1991 | EP0410184A1 Photographic material and its preparation |
| 01/29/1991 | US4988811 Developer autooxidation promoters for use in direct positive photography in silver halide emulsions |
| 01/29/1991 | US4988615 Stabilizers for photographic emulsions |
| 01/29/1991 | US4988612 Multilayer imaging element |
| 01/29/1991 | US4988611 Imaging utilizing a light-handleable photographic element having solid particle dispersion filter dye layer |
| 01/29/1991 | US4988610 Hydrophilic colloid compositions for photographic materials |
| 01/29/1991 | US4988606 Negative-working radiation-sensitive mixture with polymer having 1,2,3-thiadiazole groups, and recording material produced therefrom |
| 01/29/1991 | US4988605 Light-sensitive resin composition and light-sensitive element |
| 01/29/1991 | US4988604 High contrast photographic element including an aryl sulfonamidophenyl hydrazide containing both thio and ethyleneoxy groups |
| 01/29/1991 | US4988603 Method for the formation of high-contrast images using a developer comprising a hydrazine derivative |
| 01/29/1991 | US4988572 Plastic substrate with surface coating, polyamine and epoxy resin, etching with a halogenated phenol |
| 01/29/1991 | US4988559 Ease of peeling |
| 01/27/1991 | CA2019988A1 Color photothermographic materials with development accelerator |
| 01/26/1991 | CA2021841A1 Silver halide emulsion comprised of grains of uniform shape and size |
| 01/25/1991 | WO1991001312A1 Novel photoactive compounds |
| 01/25/1991 | CA2065005A1 Photoactive compounds |
| 01/24/1991 | WO1991000861A2 Photochromic spiropyran compounds |
| 01/23/1991 | EP0409665A1 Silver halide photographic material provided with antistatic coating |
| 01/23/1991 | EP0409117A1 Silver halide photographic material |
| 01/23/1991 | EP0409019A2 Colour photographic recording material with improved hue reproduction |
| 01/23/1991 | EP0408752A1 Process for producing silver halide grains |
| 01/22/1991 | US4987064 Chemically bonded sensitizing dye and antifoggant |
| 01/22/1991 | US4987063 Gradation variable black- and -white paper |
| 01/22/1991 | US4987062 Incorporating water-insoluble additives, stabilization against settling |
| 01/22/1991 | US4987061 Heat developable color photographic recording element |
| 01/22/1991 | US4987052 Silver halide photographic material and method for forming superhigh contrast negative images using the same |