| 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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| 12/25/1990 | US4980559 Crystal structure consists of hafnium oxide, zirconium oxide, titanium oxide, alkali metal oxide and europium oxide |
| 12/18/1990 | US4979200 Radiographic intensifying screen |
| 12/18/1990 | US4979198 Method for production of fluoroscopic and radiographic x-ray images and hand held diagnostic apparatus incorporating the same |
| 12/13/1990 | WO1990015432A1 Input screen for radiological image intensifier tube |
| 12/11/1990 | US4977327 Radiation image storage panel |
| 12/11/1990 | CA1277552C X-ray intensifying screen with improved topcoat |
| 12/05/1990 | EP0400125A1 Structure for influencing the effect of x-ray or gamma radiation on a target sensitive to the radiation |
| 12/05/1990 | CN1047588A X-ray image tube |
| 12/04/1990 | US4975588 Reduced afterglow |
| 11/28/1990 | EP0399468A2 Phosphor screen and method of manufacturing the same and X-ray image intensifier using phosphor screen |
| 11/28/1990 | EP0399378A2 X-ray image intensifier |
| 11/22/1990 | EP0397846A1 Electrographic process for generating an electrical image signal |
| 11/22/1990 | DE3909449A1 Verfahren zur herstellung von leuchtschirmen, verstaerkungs- oder speicherfolien fuer die roentgendiagnostik Process for the production of neon shield, gain, or space-sheets for the roentgendiagnostik |
| 11/20/1990 | US4972516 X-ray intensifying screen including a titanium activated hafnium dioxide phosphur containing holmium to reduce afterglow |
| 11/20/1990 | US4972086 Multilayer screens with phosphors |
| 10/31/1990 | CN2064891U Protective lens for fluorescent screen |
| 10/30/1990 | US4967087 X-ray intensifying screen including a titanium activated hafnium dioxide phosphor containing ytterbium to reduce afterglow |
| 10/30/1990 | US4967085 X-ray intensifying screen including a titanium activated hafnium dioxide phosphor containing neodymium to reduce afterglow |
| 10/24/1990 | EP0393662A2 Radiation image storage panel, radiographic intersifying screen and processes for the preparation of the same |
| 10/24/1990 | CN1010140B Radiation conversion screen |
| 10/23/1990 | US4965455 X-ray imaging film and apparatus for handling it |
| 10/18/1990 | WO1990012405A1 Accelerated phosphor plate and accelerated phosphor reader |
| 10/17/1990 | EP0392474A2 Improved surfaces for X-Ray intensifying screens |
| 10/16/1990 | US4963754 X-ray intensifying screen including a titanium activated hafnium dioxide phosphor containing thulium to reduce afterglow |
| 10/16/1990 | US4963753 Fluorescent layer absorbs x-rays and emits electro-magnetic radiation |
| 10/16/1990 | US4963751 Radiation image storage panel and method for preparing the same |
| 10/12/1990 | CA2013878A1 Surfaces for x-ray intensifying screens |
| 10/10/1990 | EP0391153A2 Method for recording and reproducing a radiation image, panel and phosphors for storing a radiation image |
| 10/07/1990 | CA2014023A1 Method for recording and reproducing a radiation image, panel and phosphors for storing a radiation image |
| 10/02/1990 | US4961004 X-ray intensifying screen including a titanium activated hafnium dioxide phosphor containing samarium to reduce afterglow |
| 09/27/1990 | DE3909450A1 Method for the production of fluorescent screens, amplification films or storage films for X-ray diagnostics |
| 09/07/1990 | WO1990006520A3 Electrographic process for generating an electrical image signal |
| 09/04/1990 | US4954706 Radiographic image pickup apparatus |
| 08/29/1990 | EP0384753A2 Radiographic elements with selected contrast relationships |
| 08/29/1990 | EP0384634A2 Radiographic screen/film assemblies with improved detection quantum efficiencies |
| 08/28/1990 | US4952813 Radiographic intensifying screen and process for the preparation of the same |
| 08/28/1990 | US4952794 X-ray imaging system |
| 08/23/1990 | CA2010329A1 Radiographic screen/film assemblies with improved detection quantum efficiencies |
| 08/23/1990 | CA2008456A1 Radiographic elements with selected contrast relationships |
| 08/21/1990 | US4950907 Luminescent storage screen and read-out apparatus therefor |
| 08/21/1990 | US4950559 Containing phosphor layer with binder, light reflecting layer with colorant absorbing stimulating rays of phosphor; medical diagnosis; sensitivity, sharpness |
| 08/16/1990 | EP0382295A2 Reproduction of X-ray images with photostimulable phosphor |
| 08/16/1990 | EP0382117A2 X-ray intensifying screen and phosphor composition |
| 08/08/1990 | EP0381234A2 X-ray intensifying screen and phosphor composition |
| 08/08/1990 | EP0381233A2 Phosphor composition and process of phosphor preparation |
| 08/08/1990 | EP0381232A2 X-ray intensifying screen |
| 08/08/1990 | EP0381231A2 X-Ray intensifying screen |
| 08/07/1990 | US4947046 Method for preparation of radiographic image conversion panel and radiographic image conversion panel thereby |
| 08/07/1990 | CA2009185A1 Reproduction of x-ray images with photostimulable phosphor |
| 08/03/1990 | CA2008542A1 X-ray intensifying screen, phosphor composition, and process of phosphor preparation |
| 08/03/1990 | CA2008541A1 X-ray intensifying screen and phosphor composition |
| 08/03/1990 | CA2008539A1 X-ray intensifying screen and phosphor composition |
| 08/03/1990 | CA2008457A1 Phosphor composition and x-ray intensifying screen |
| 08/01/1990 | CN1009037B Method for mfg. x-ray image intensifying tube, and manufactured tube |
| 07/24/1990 | US4943727 Radiographic intensifying screen |
| 07/11/1990 | EP0377470A1 Radiation image storage panel |
| 07/10/1990 | CA1271567A1 Method and apparatus for high engery radiography |
| 07/03/1990 | US4939018 Radiation image storage panel |
| 06/19/1990 | US4935631 Radiation meters |
| 06/19/1990 | CA1270407A1 Stimulable, phosphor-sheet, and method and device of conveying the same |
| 06/14/1990 | WO1990006582A1 Structure for influencing the effect of x-ray or gamma radiation on a target sensitive to the radiation |
| 06/14/1990 | WO1990006520A2 Electrographic process for generating an electrical image signal |
| 06/12/1990 | US4933558 X-ray sensitive area detection device |
| 06/06/1990 | EP0207119B1 Luminescent ceramic plates |
| 06/05/1990 | US4931652 Radiation image recording and reproducing method |
| 05/23/1990 | EP0369049A1 Storage luminescent screen with stimulative storage phosphor |
| 05/22/1990 | US4928017 Method for recording and reproducing radiographic images |
| 05/15/1990 | US4926047 Radiation image recording and reproducing method and radiation image storage panel employed for the same |
| 05/01/1990 | US4922105 Radiation image storage panel |
| 04/25/1990 | EP0364989A2 Phosphor, radiation image recording and reproducing method and radiation image storage panel employing the same |
| 04/18/1990 | EP0363977A1 Magnesium tantalum oxide x-ray intensifying screens |
| 04/18/1990 | EP0363736A1 Process for manufacturing an X-ray storage phosphor |
| 04/18/1990 | EP0363522A1 X-ray diagnostic arrangement with a storage screen |
| 04/11/1990 | EP0362405A1 X-ray imaging plate, method for producing x-ray imaging plate, phosphor of photostimulated luminescence material, and method for producing phosphor of photostimulated luminescence material |
| 04/03/1990 | US4914303 Gadolinium oxysulfide, luminophore |
| 03/28/1990 | EP0360116A1 An X-ray intensifying screen permitting an improved relationship of imaging speed to sharpness |
| 03/27/1990 | US4912333 X-ray intensifying screen permitting an improved relationship of imaging speed to sharpness |
| 03/21/1990 | EP0359267A2 Method for generating radiation image signals |
| 03/20/1990 | US4910407 Radiation image storage panel |
| 03/07/1990 | EP0357114A1 X-ray image intensifier tube persistence |
| 03/06/1990 | US4906893 X-ray image intensifier and method of manufacturing the same |
| 02/22/1990 | DE3827976A1 X-radiation image detector and method for its production |
| 02/14/1990 | EP0354416A2 Spherical phosphor aggregates, their preparation and use in X-ray screens |
| 02/13/1990 | US4900641 Radiographic intensifying screen |
| 02/07/1990 | EP0353805A1 Reproduction of x-ray images with photostimulable phosphor |
| 02/06/1990 | CA1265328A1 Phosphor, radiation image recording and reproducing method and radiation image storage panel |
| 01/24/1990 | EP0352152A1 Method of manufacturing a scintillator, and scintillator so obtained |
| 01/24/1990 | EP0199791B1 Method and modifying body for influencing the effect of x-ray or gamma radiation on a target sensitive to the radiation |
| 01/23/1990 | US4896043 Radiation image storage panel |
| 01/23/1990 | US4895772 Phosphor, and radiation image storage panel |
| 01/17/1990 | EP0350883A2 Combination of photosensitive elements for use in radiography |
| 01/16/1990 | US4894548 Europium activated complex halide phosphor |
| 01/10/1990 | EP0350391A1 Lanthanide silicate monocrystals useful scintillators for X-ray and gamma-ray detection |
| 01/09/1990 | US4893021 Exposure of multiple photosensitive layers; of fluorescent material and visible light reflectors |
| 01/09/1990 | US4893020 X-ray fluorescent image intensifier |
| 01/02/1990 | US4891829 Method and apparatus for utilizing an electro-optic detector in a microtomography system |
| 01/02/1990 | US4891527 Spherical phosphor aggregates, their preparation and use in X-ray screens |
| 01/02/1990 | US4891277 Emitters of near ultraviolet to blue light |
| 12/27/1989 | EP0348172A2 Radiation image storage panel |
| 12/20/1989 | EP0347171A2 Radiation image storage panel |