| Patents for G21K 4 - Conversion screens for the conversion of the spatial distribution of particles or ionising radiation into visible images, e.g. fluoroscopic screens (3,266) |
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| 05/20/1980 | US4204125 High resolution X-ray intensifying screen with antireflecting substrate |
| 05/20/1980 | CA1077705A1 X-ray screens |
| 04/01/1980 | US4195996 Method of recording radiation image |
| 03/25/1980 | US4195228 X-ray image converter |
| 03/11/1980 | CA1073280A1 Fluorescent screen and method of making |
| 02/12/1980 | US4188449 Phosphorescent screens |
| 02/06/1980 | EP0007838A2 Luminescent blue-emitting materials based on bivalent europium, processes for their preparation and their use |
| 02/05/1980 | CA1071004A1 Xeroradiographic plate with coating of charge conductive metal on margin edge |
| 01/23/1980 | EP0007105A1 Method of and apparatus for reading out a radiation image recorded in a stimulable phosphor |
| 12/25/1979 | US4180740 X-ray intensifying screens |
| 07/25/1979 | EP0003151A1 Improved X-ray image intensifying screens comprising rare earth oxyhalide phosphor particles |
| 04/10/1979 | US4149083 Radiographic intensifying screens |
| 04/03/1979 | USRE29956 Luminescent screen having a mosaic structure |
| 03/07/1979 | EP0000961A1 Phosphor-containing compositions and their use in X-ray photography. |
| 02/27/1979 | US4142101 Low intensity X-ray and gamma-ray imaging device |
| 02/21/1979 | EP0000792A1 X-ray image intensifying screens |
| 02/20/1979 | CA1049161A1 Adhesive layer for x-ray intensifying screens on polyethylene terephthalate support layers |
| 02/06/1979 | US4138529 Phosphors and X-ray image converters using the same |
| 02/06/1979 | US4138361 Radiation-conversion screens |
| 12/26/1978 | CA1045254A1 Differential x-ray method and apparatus |
| 12/19/1978 | US4130429 Combination of photosensitive elements suited for use in radiography |
| 10/10/1978 | CA1040323A1 Luminescent screen |
| 09/19/1978 | US4115312 From alkali metal solution, calcining |
| 09/19/1978 | CA1038684A1 Photosensitive combination of elements suited for use in radiography |
| 09/19/1978 | CA1038683A1 Radiography |
| 09/19/1978 | CA1038618A1 Process for preparing yttrium oxide and rare earth metal oxide phosphors |
| 08/29/1978 | US4110596 Apparatus for transporting and collecting self-propelled welding carriages |
| 08/15/1978 | US4107070 Process for improving the properties of oxysulfide phosphor materials |
| 07/25/1978 | US4103173 Fluorescent screen |
| 07/18/1978 | US4101781 Stable fiber optic scintillative x-ray screen and method of production |
| 07/11/1978 | US4100445 Image output screen comprising juxtaposed doped alkali-halide crystalline rods |
| 05/16/1978 | US4090085 Support layer, protective layer containing antistatic agents, carbon black layer, and a phosphor layer |
| 05/09/1978 | US4088894 (Ba,Sr)F, (Cl,Br) : Eu+2 X-Ray image converters utilizing LaOBr (Tm,Tb) phosphors |
| 03/14/1978 | US4079258 Activated rubidium bromide and thallium halogenide |
| 03/07/1978 | US4078108 Adhesive layer for X-ray intensifying screens on polyethylene terephthalate support layers |
| 02/28/1978 | US4076897 Low lag luminescent phosphors and X-ray screen containing the same |
| 02/21/1978 | US4075495 Europium activated alkaline earth metal samarium fluorohalide phosphor |
| 01/24/1978 | US4070583 Rare earth oxyhalide phosphors coactivated with terbium, thulium |
| 01/17/1978 | US4069355 Forming pattern, vapor deposition, heat annealing |
| 01/10/1978 | US4068129 Bismuth activated rare earth oxybromide phosphors and X-ray image converters utilizing said phosphors |
| 01/10/1978 | US4068128 (Hf1-x Zrx)3 P2 O11 luminescent material, method of preparation and X-ray intensifying screen containing same |
| 11/22/1977 | US4059768 Radiographic intensifying screens |
| 11/22/1977 | US4059707 Method of filling apertures with crystalline material |
| 11/08/1977 | US4057508 X-ray phosphors with low afterglow |
| 10/18/1977 | US4054799 X-ray phosphor composition and x-ray intensifying screen employing same |
| 10/18/1977 | US4054798 X-ray conversion screens |
| 10/04/1977 | US4052621 Object viewing system with radiation responsive screen system |
| 08/09/1977 | US4041319 Radiographic phosphor screen |
| 08/09/1977 | US4040833 Cyanine dyes |
| 08/02/1977 | US4039840 Intensifying screens |
| 08/02/1977 | US4039839 Thorium tetrabromide scintillators and radiation detection and measurement therewith |
| 07/19/1977 | US4037110 Yttrium indium phosphate X-ray phosphors, method of preparation and X-ray intensifying screen containing same |
| 06/28/1977 | US4032791 Fluorescent screen and method of making |
| 06/14/1977 | US4029851 Terbium activated lanthanum-lead oxybromide crystals |
| 06/07/1977 | US4028550 X-ray screens |
| 03/08/1977 | US4011455 Phosphor screen |
| 03/08/1977 | US4011454 Structured X-ray phosphor screen |
| 09/14/1976 | US3980888 Self-supporting luminescent screens |
| 08/17/1976 | US3975637 Thermoluminescent material, infrared lasers |
| 08/10/1976 | US3974389 Terbium-activated rare earth oxysulfide X-ray phosphors |
| 08/10/1976 | US3974386 Differential X-ray method and apparatus |
| 06/01/1976 | US3961182 Pick up screens for X-ray image intensifier tubes employing evaporated activated scintillator layer |
| 04/27/1976 | US3953303 Process for the manufacture of mesh screen for X-ray photography sensitization |
| 04/20/1976 | US3951848 Europium activated, enhanced by lead, thallium or aluminum ions |
| 03/30/1976 | USRE28751 X- and gamma-ray sensitive image intensification tube |
| 02/03/1976 | US3936644 Multi-layer X-ray screens |