Patents for G03F 5 - Screening processes; Screens therefor (818)
12/1990
12/19/1990EP0403263A2 Method of manufacturing a luminescent screen assembly using a dry-powdered filming material
12/11/1990US4977464 Method of producing halftone images by choosing a conversion function based on virtual and reference solid pixels
12/04/1990US4975784 Method for graving printing forms
11/1990
11/27/1990US4973989 Halftone laser recording with plural beams
11/27/1990US4973543 System for the production of dot-etched lithographic films
11/22/1990EP0398267A2 Gravure printing plate
10/1990
10/25/1990DE3913218A1 Method of flexographic photogravure printing - uses printing plate with ink repellent surface
10/10/1990CN1046052A Digital contacting screen
10/09/1990CA1275003A1 Soft edge mask
10/03/1990CN1045870A Dispersed laser speckle contact screen and optical system for its manufacture
08/1990
08/15/1990CN1044618A Printing method and printed product
08/14/1990US4949184 Color image recorder with correction of gradation errors in light shielding mask images and visibly developed images
08/09/1990WO1990008657A1 Novel printing method and printed product
08/01/1990CN1044348A Method of and apparatus for recording halftone images and halftone images produced thereby
07/1990
07/24/1990US4943517 Color separation for photolithography
06/1990
06/27/1990EP0374153A1 Process for making gravure formes of variable depth or variable depth and area
06/20/1990EP0373449A2 Method of and apparatus for forming halftone dots
05/1990
05/30/1990EP0370271A2 Method of and apparatus for recording halftone images and halftone images produced thereby
05/29/1990US4930020 Facsimile transmission of photographic images
05/23/1990EP0369302A2 Method of and apparatus for producing halftone image
05/23/1990EP0369243A2 Method of and apparatus for recording halftone images
05/15/1990US4925271 Optical beam splitter
05/08/1990US4924509 Image processing apparatus
05/08/1990US4924323 Tonal conversion method for pictures
04/1990
04/18/1990EP0363943A2 Method for forming halftone data
03/1990
03/28/1990EP0359869A1 Method for colour correction by dry dot etching using photographically produced mask
03/21/1990EP0359266A2 Method of and apparatus for recording halftone image
02/1990
02/13/1990US4901104 Image recording apparatus
01/1990
01/30/1990US4897736 Color image processing apparatus using a deformed dot matrix
01/30/1990US4897163 Metal cylindrical screen made of sheet material, and process for producing such a screen
01/11/1990WO1990000266A1 Photo-electromagnetic color separation for reproduction of color images
12/1989
12/27/1989EP0348237A2 A laser beam projecting unit
12/26/1989US4889794 Method of changing the density of image on simple color proof using a randomly dotted half tone mask
12/19/1989US4888611 Photo-electromagnetic color separation for reproduction of color images
12/14/1989WO1989012256A1 Process for making gravure formes of variable depth or variable depth and area
12/07/1989DE3913728A1 Halftone screen and the use thereof in the reproduction of halftone images and drawings, particularly suitable for textile printing
11/1989
11/23/1989EP0342291A2 An optical beam splitting method and an optical beam splitting/modulation method
11/23/1989EP0342290A2 Optical beam modulating device
11/15/1989EP0341666A2 Tonal conversion method for pictures
10/1989
10/11/1989EP0336471A1 Metal cylindrical screen made of sheet material, and process for producing such a screen
10/11/1989CN2045860U Optitherm plate-making machine
07/1989
07/25/1989US4850675 Light gate array having gates of different areas
07/11/1989US4847689 Method of and apparatus for tint generation and color separation over closed regioons of an image including generation of run-length color data
05/1989
05/17/1989EP0315774A2 System for the production of dot-etched lithographic films
04/1989
04/25/1989US4825298 Halftone dot-generator and generating method
03/1989
03/28/1989US4816378 Imaging system
03/15/1989EP0306565A1 Process for dot-size correction of halftone images
03/07/1989US4811108 Tonal conversion method for pictures
02/1989
02/21/1989US4807020 Image reproducing system having multiple processing levels
02/15/1989EP0303190A2 Method of forming halftone screen
02/15/1989EP0302870A1 Half-tone screen printing forms with screen-elements arranged in honeycomb fashion
11/1988
11/30/1988EP0292732A2 Halftone dot generator and generating method
11/08/1988US4783145 Multiple gradation dot-matrix picture forming method
10/1988
10/04/1988US4775886 Apparatus for performing a plurality of editing processes according to a predetermined order of priority while recording a composite image
09/1988
09/27/1988US4773734 Method of forming halftone screen
09/14/1988EP0282305A2 Tonal conversion method for pictures
06/1988
06/15/1988CN85108425B Printing method and plate
06/09/1988DE3739829A1 Druckvorrichtung und -verfahren A printing apparatus and method
04/1988
04/05/1988US4736253 Method and apparatus for producing a halftone dot by selectively comparing image signals with highlight and shadow reference values or with halftone dot sub-cell reference values
01/1988
01/14/1988WO1987006724A3 Half-tone screen printing forms with screen-elements arranged in honeycomb fashion
01/05/1988US4717954 Method and apparatus using a conversion table based on pre-printed color charts for determining half-tone dot percents required to reproduce the color of a color specimen
11/1987
11/05/1987WO1987006724A2 Half-tone screen printing forms with screen-elements arranged in honeycomb fashion
11/05/1987DE3711838A1 Autotypisch gerasterte druckformen mit wabenartig angeordneten rasterelementen Autotypical rasterized print forms with honeycomb-like arrangement of grid elements
10/1987
10/21/1987EP0242184A2 Imaging system
09/1987
09/30/1987EP0238976A2 Method of tint generation and apparatus therefor
09/09/1987EP0235631A2 Method of forming halftone screen
09/07/1987EP0144315A4 Screen gravure engraving method for electromechanical engravers.
08/1987
08/12/1987EP0231902A2 Process for coating printing cylinders by way of application of a photopolymerisable registration layer
07/1987
07/28/1987US4683500 Method for reproducing picture image
07/14/1987US4680642 Picture scanning and recording method with selection between two differently processed signals
06/1987
06/23/1987US4674838 Contact screen for contrast control
06/16/1987US4673971 Halftone dot formation
05/1987
05/27/1987DE3541574A1 Method for producing halftone prints
05/26/1987US4668597 Dormant tone imaging
05/12/1987US4663850 Moire simulator and method of using same
05/12/1987CA1221571A1 Method of reproducing images with grey values
04/1987
04/21/1987US4659113 Method of screening half-tone picture themes
04/07/1987US4656526 Plane color image scanning and reading method
03/1987
03/03/1987CA1218733A1 Screen gravure engraving system for electromechanical engravers
02/1987
02/17/1987US4644392 Method for simultaneously recording a halftone picture portion, a line drawing portion with a desired screen tint, and a boundary portion between them on a plurality of color separations
02/17/1987US4643563 Color image data processing method
01/1987
01/27/1987US4639086 Method of recording a halftone image
01/21/1987EP0209105A2 Method of changing the density of image on simple color proof and a mask used therefor
01/06/1987US4635133 Photographic method for the production of documents
01/06/1987US4635131 Method of and apparatus for producing halftone dot film of gradated density distribution
12/1986
12/30/1986US4633328 Picture scanning and recording method
12/16/1986US4630125 Unscreening of stored digital halftone images
11/1986
11/18/1986US4623972 Half-tone dot imaging
10/1986
10/08/1986EP0085066B1 Method for rastering half-tone images
10/07/1986US4616266 Method and apparatus for electrically controllable scanning device for moire-free scanning of rastered masters
09/1986
09/30/1986CA1211978A1 Integrated photoscreen for making a halftone reproduction printing plate from a photograph
09/16/1986US4612584 Screen gravure engraving system for electromechanical engravers
09/16/1986US4612582 Liquid cooled cathode ray tube assembly for video image projection systems
09/09/1986US4610949 Printing plates
08/1986
08/12/1986CA1209486A1 Method and electrically controllable scanning device for moire-free scanning of rastered masters
07/1986
07/15/1986US4600666 Integrated photoscreen for making a halftone reproduction printing plate from a photograph
06/1986
06/10/1986CN85108425A Printing method and plate
06/10/1986CA1205664A1 Half tone screen exposure apparatus
05/1986
05/07/1986EP0180419A2 Printing method and plate
05/06/1986USRE32139 Method and arrangement for the avoidance of errors during the reproduction of an image pattern
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