| Patents for G03G 13 - Electrographic processes using a charge pattern (6,148) |
|---|
| 03/05/1991 | US4998142 Method of improving a multi-color electrophotographic image |
| 02/21/1991 | WO1991002298A1 Use of a liquid electrophotographic toner with an overcoat permanent master in electrostatic transfer |
| 02/19/1991 | US4994342 Photoconductive coating with zinc oxide; reverse side has surface resistance to prevent pinholes |
| 02/13/1991 | CN1011629B Xeroprinting with photopolymer master |
| 02/12/1991 | US4992831 Image forming apparatus with plural developing devices |
| 02/06/1991 | EP0411953A2 Reprographic apparatus |
| 02/06/1991 | EP0411479A2 Method for electrophotographic image formation |
| 02/06/1991 | CN1049064A 成象设备 Imaging equipment |
| 02/06/1991 | CN1049063A 成象设备 Imaging equipment |
| 02/05/1991 | US4990960 Method and device for measuring densities of different toners constituting a mixture |
| 02/05/1991 | US4990426 Di- and tricationic negative charge control agents for electrophotographic developers |
| 01/30/1991 | EP0410800A2 Process for forming secure images |
| 01/30/1991 | EP0410482A2 Image forming apparatus |
| 01/30/1991 | EP0410457A2 Image forming apparatus |
| 01/30/1991 | EP0410456A2 Image forming apparatus |
| 01/30/1991 | EP0410324A2 Electrophotographic light-sensitive material |
| 01/29/1991 | US4989046 On a copy sheet |
| 01/29/1991 | US4988599 Electrophotographic color toner having selected index of refraction range |
| 01/29/1991 | US4988591 Process for producing color images |
| 01/29/1991 | CA1279445C Lipophobicating solution for electrophotographic plates for offset printing |
| 01/24/1991 | DE3931151A1 Pictoral pattern transfer of photocopy to decorative object |
| 01/22/1991 | US4987457 Fixing method for a wet process copier |
| 01/22/1991 | US4987454 Developing method for developing electrostatic latent image |
| 01/22/1991 | US4986211 Toning method and member for electrostatography |
| 01/16/1991 | EP0408267A2 Method for developing electrostatic latent images |
| 01/16/1991 | CN1048606A Photosensitive leuco dye containing electrostatic master with printout image |
| 01/15/1991 | US4985327 Particle sizes |
| 01/15/1991 | US4985322 Process and apparatus for producing printing plates |
| 01/15/1991 | US4985321 Toner fluids, dispersion of charged colloidal metallic particles |
| 01/15/1991 | CA1279087C Method of image reversal in colour electrophotography |
| 01/15/1991 | CA1279086C Method of image fixing in colour electrostatography |
| 01/09/1991 | EP0406960A1 Method of and apparatus for forming a multi-colour image |
| 01/09/1991 | EP0406414A1 Color electrophotographic method and apparatus |
| 01/08/1991 | US4984021 Photoreceptor edge erase system for tri-level xerography |
| 01/08/1991 | US4983487 Image transfer method |
| 01/08/1991 | US4983481 Flexible substrate with same thermal contraction coefficient as charge transport layer |
| 01/02/1991 | EP0405991A1 Extention of tri-level xerography to black plus 2 colors |
| 01/02/1991 | EP0405694A2 Developing method using two-component type developer |
| 01/02/1991 | EP0405686A2 Developing process for forming image having high quality |
| 01/02/1991 | EP0405543A2 Photosensitive leuco dye containing electrostatic master with printout image |
| 01/02/1991 | EP0405016A1 Toner-receiving printing plate |
| 01/02/1991 | EP0404825A1 Improved liquid toner composition |
| 12/31/1990 | CA2019940A1 Photosensitive leuco dye containing electrostatic master with printout image |
| 12/26/1990 | CN1010987B Photo hardening electro static printing mould containing electron donor and donee |
| 12/19/1990 | EP0403191A2 Conversion solutions for lithographic printing plates |
| 12/18/1990 | US4978597 Electrophotography |
| 12/15/1990 | CA2017638A1 Conversion solutions for lithographic printing plates |
| 12/12/1990 | EP0401437A1 Highlight color imaging apparatus |
| 12/11/1990 | US4977417 Electrophotography system |
| 12/11/1990 | US4977049 Photoconductive zinc oxide in binder |
| 12/05/1990 | EP0400572A2 Recording apparatus |
| 12/05/1990 | EP0400571A2 Recording apparatus |
| 12/05/1990 | EP0400563A2 Recording apparatus |
| 12/05/1990 | EP0400555A2 An image forming apparatus |
| 12/05/1990 | EP0400028A1 Master and master transport assembly registration system |
| 12/05/1990 | EP0343167A4 Image reversal process |
| 11/28/1990 | EP0399478A2 Method and apparatus for improving a multi-color electrophotographic image by buffing |
| 11/28/1990 | EP0399469A1 Electrophotographic light-sensitive material |
| 11/27/1990 | US4974025 Method of controlling toner concentration in electrophotographic developing apparatus |
| 11/22/1990 | EP0398373A1 Electrophotographic light-sensitive material |
| 11/21/1990 | CN1047149A Photohardenable electrostatic element with improved environmental latitude |
| 11/14/1990 | EP0397529A2 Photohardenable electrostatic element with improved environmental latitude |
| 11/14/1990 | EP0397182A2 Heat fixing method |
| 11/13/1990 | US4970536 Apparatus for multicolor image forming wherein image forming conditions are adjusted based on reference images |
| 11/13/1990 | US4970130 Xeroprinting process with improved contrast potential |
| 11/12/1990 | CA2016389A1 Photohardenable electrostatic element with improved environmental latitude |
| 11/07/1990 | EP0396359A2 Developing process excellent in image reproducibility |
| 11/06/1990 | US4968578 Method of non-electrostatically transferring toner |
| 11/06/1990 | US4968573 Method of developing electrostatic latent images |
| 11/01/1990 | WO1990013063A1 Process for transferring images motifs |
| 10/31/1990 | EP0395061A2 Image forming method and image forming apparatus |
| 10/31/1990 | EP0395026A2 Magnetic developer, image forming method and image forming apparatus |
| 10/30/1990 | US4967231 Compact developer |
| 10/30/1990 | US4966824 For development of latent electrostatic images |
| 10/18/1990 | DE3917156A1 Image motor transfer - using laser copier and fixing oil |
| 10/18/1990 | DE3911934A1 Printing plate with non-printing area - has colour retaining pattern applied to hydrophilic support base |
| 10/18/1990 | DE3911933A1 Print master preparation equipment - provides image to retain ink on hydrophilic substrate |
| 10/16/1990 | US4963454 Consisting of mixture of carrier and toner at specific concentration |
| 10/16/1990 | US4963452 Photosensitive member for inputting digital light |
| 10/10/1990 | EP0391371A2 Electrophotographic lithographic printing plate |
| 10/10/1990 | CN1045942A Offset and reproduction technology for polyester fibre lamina |
| 10/04/1990 | WO1990011552A1 Method and apparatus for making electrophotographic prints of photographic negatives |
| 10/03/1990 | EP0390605A2 Developing method and developing apparatus |
| 10/03/1990 | EP0390103A2 High resolution superimposed images from photopolymer electrographic master |
| 10/02/1990 | US4961094 Electrostatic recording apparatus and method for producing color images |
| 10/02/1990 | US4960660 Radiation exposure, stripping cover sheet, lamination, peeling temporary surface, charging, developing |
| 09/30/1990 | CA2013216A1 High resolution superimposed images from photopolymer electrographic master |
| 09/26/1990 | EP0388592A2 Stripping solution for plates carrying electrophotographical images and process to strip such plates |
| 09/25/1990 | US4959695 Method and apparatus for forming a multicolor picture by electrophotography |
| 09/25/1990 | US4959689 Electrophotographic plate-making machine with independent motors for moving the copy holder, conveying rollers and focus region rollers |
| 09/25/1990 | US4959286 Two-pass highlight color imaging with developer housing bias switching |
| 09/20/1990 | DE4008511A1 Elektrostatische druckeinrichtung Electrostatic pressure device |
| 09/18/1990 | US4958173 Toner receptive coating |
| 09/18/1990 | US4957774 Heating and pressing through a film contacting the toner image, controlling melt viscosity of toner |
| 09/07/1990 | WO1990010894A1 Liquid developer systems with self-replenishment of bulk conductivity |
| 09/07/1990 | WO1990010257A1 Printed metal container and multicolor printing thereof |
| 09/05/1990 | EP0385377A1 Methacrylic (co)polymers with side chain carbazolyl groups, and electrophotographic recording elements containing same |
| 09/05/1990 | CN1045188A Improved liquid toner composition |
| 09/04/1990 | US4954404 Electrostatics |
| 08/29/1990 | EP0383905A1 Electrophotographic luminescent amplification process |