Patents for G03G 13 - Electrographic processes using a charge pattern (6,148)
07/1982
07/27/1982CA1128602A1 Method and apparatus for xeroradiography
07/14/1982EP0055992A2 Composition for a toner of a magnetic resist printing process
07/13/1982US4339518 Process of electrostatic printing with fluorinated polymer toner additive
07/06/1982US4338019 Method for operating electrophotographic copying apparatus
06/1982
06/30/1982EP0054637A2 Image density test circuit for an electrophotographic copier
06/29/1982US4337306 Electrography
06/29/1982US4337303 Transfer, encapsulating, and fixing of toner images
06/29/1982CA1126799A1 Electrophotographic process
06/23/1982EP0054310A2 Transfer foil for the transfer of figures onto surfaces; transfer process and apparatus therefor
06/22/1982US4336318 Adjusting the thickness of tone layer to produce fog free images
06/15/1982US4335196 Ferromagnetic and insulating toner particles
06/15/1982US4335194 Two color electrophotographic process and material
06/09/1982EP0053362A2 Process for the production of lithographic printing plates and light-sensitive materials for use therein
06/08/1982CA1125356A1 Electrostatic copying process and apparatus
06/01/1982CA1124565A1 Dielectric overcoated photoresponsive imaging member and imaging method
05/1982
05/18/1982CA1123680A1 Process for reversal development
05/11/1982US4329414 Development, toners
05/11/1982US4329043 Multiple copy electrophotographic reproducing apparatus
05/11/1982US4328977 Thermosensitive ink layer
05/04/1982US4328265 Thermoplastic acrylic resin and a reactive thermosetting resin
05/04/1982US4327664 Wet type electrostatic image developing device
05/04/1982CA1123039A1 Electrophotographic imaging method
04/1982
04/27/1982CA1122643A1 Formation of electrostatic latent image
04/06/1982US4323929 Printing process using lithographic plates made from toned amplitude modulated magnetic images
03/1982
03/30/1982US4322488 Developing latent electrostatic images using a liquid toner and a development electrode
03/30/1982US4322486 Electrophotographic process involving double charging
03/23/1982CA1120528A1 High speed electrophotographic medium and method
03/23/1982CA1120337A1 Developing latent electrostatic images using a liquid toner and a development electrode
03/17/1982EP0047457A1 Transport device for printing plates
03/16/1982US4320186 Electrographic method for preparing original for projection and transfer film for use in method
03/02/1982CA1119242A1 Electrophotographic backcharge process
02/1982
02/17/1982EP0046026A2 Transfer, encapsulating, and fixing of toner images
02/09/1982US4315064 Electrostatic photographic copying process
02/04/1982WO1982000369A1 Improvements in and relating to electrostatic printing
02/02/1982US4314012 Photoconductive reflex exposure member
02/02/1982CA1117347A1 Amplification of electrographic image patterns developed with group viii or ib metal containing catalyst
01/1982
01/19/1982US4311778 Electrophotographic method
01/19/1982US4311777 Method for forming an electrostatic latent image
01/19/1982US4311776 Electrophotographic image forming method
01/12/1982US4310610 Two color electrostatographic process
01/12/1982CA1116227A1 Controlled corona for charging electrostatic photocopy paper having zno binder layer
01/12/1982CA1116224A1 Method for preventing toner particles from moving from recording medium to modulating element
01/12/1982CA1116016A1 Lithographic printing plate and process for making same
01/06/1982EP0043086A2 Liquid toner applicator
01/06/1982EP0043085A2 Process for manufacturing printing plates or integrated circuits
01/05/1982US4308799 Polysiloxane, alkoxysilane, and organotitanium or zirconium compound
12/1981
12/29/1981US4308330 Multilayer for subtractive process
12/29/1981CA1115330A1 Duplex system and method for pre-collation copiers
12/29/1981CA1115328A1 Vector pinning in an electrophotographic machine
12/22/1981US4307168 Amplification of developed electrographic image patterns
12/10/1981WO1981003556A1 Electrophotographic method of obtaining image on dielectric foil
12/09/1981EP0041292A1 Process of forming a metal article, process of manufacturing a plastics mask upon a metal carrier and installation for applying a plastics mask upon the surface of a metal carrier
12/09/1981EP0041291A1 Process and installation for forming a metal product by applying a photo semi-conducting material
12/09/1981EP0041276A1 Methods for the transfer of image deposits formed by electroscopic marking particles
12/08/1981CA1114012A1 Digitally regulated power supply for use in electrostatic transfer reproduction apparatus
11/1981
11/18/1981EP0040128A2 Method for electrographic reproduction on any base by means of a magnetic monocomponent development toner
11/17/1981CA1112501A1 Electrostatographic photosensitive device comprising a hole transport layer between hole injecting and charge generation layers
11/10/1981US4299902 Liquid phase photoconductography
11/10/1981US4299900 Photoconductography
11/03/1981CA1111897A1 Two sided printing system with sheet inverter
10/1981
10/27/1981US4297422 Electrophotographic process for printing a plurality of copies
10/21/1981EP0038050A2 Electrophotographic color proofing apparatus
10/20/1981CA1111097A1 Charge control system for xerographic machines
10/20/1981CA1110902A1 Electrographic process for making transparencies
10/13/1981US4294904 Brush, forming electrostatic latent images
10/13/1981US4294903 Process for electrostatically developing and pressure-fixing a reversed image including charge dissipation prior to fixing
10/13/1981US4294902 Image formation method having translucent particles containing a coloring agent and a colorless dye former
10/07/1981EP0037193A2 Xerographic reproduction method
10/06/1981US4293634 Binders, aggregation, crystallization
10/06/1981US4293631 Electrographic toner compositions
10/06/1981US4292921 Electrographic development apparatus
09/1981
09/29/1981US4292387 Magnetic developing method under A.C. electrical bias and apparatus therefor
09/22/1981US4290690 Device for controlling potential of latent image for use in electrophotographic apparatus
09/09/1981EP0035203A2 Process and apparatus for the electrophotographic preparation of half-tone colour copies
09/08/1981US4288518 Electrographic magnetic developing method
09/08/1981US4288515 Toner brush
09/08/1981CA1108775A1 Method and apparatus for building up and reducing the pressure of gases in ionography imaging chambers
09/08/1981CA1108685A1 Method and apparatus for generating charged particles
09/02/1981EP0034816A2 Multiple transfer of tacky image areas using prolonged tack toners
09/01/1981US4287283 Iron powder developing carrier and the manufacturing method of the same, developer containing said carrier and method of forming visible image by using said developer
09/01/1981US4286861 Electrostatic copying process and apparatus
09/01/1981US4286543 Apparatus for developing electrostatic image
08/1981
08/26/1981EP0034317A2 Electrophotographic method for producing a planographic printing forme
08/25/1981US4286036 Process for reversal development
08/18/1981US4284702 Electrographic developing method
08/18/1981US4284697 Image formation method
08/18/1981CA1107158A1 Transfer sheet and process for preparation thereof
08/18/1981CA1107136A1 Latent imaging master
08/11/1981CA1106872A1 Document protection using colors below critical density of copier
08/04/1981US4282297 Interpositioning of a semiconductor substrate between a photoreceptor and a conducting layer
07/1981
07/28/1981US4281051 Three color electrostatographic process
07/14/1981US4278884 Method and apparatus for xeroradiography
07/14/1981CA1104861A1 Iron powder developing carrier and the manufacturing method of the same, developer containing said carrier and method of forming visible image by using said developer
07/14/1981CA1104858A1 Plate for lithography or offset printing with oleophilic iron oxide areas and hydrophilic etched inorganic pigment areas
07/08/1981EP0031481A1 Material for electrographical reproduction
07/07/1981US4277550 Photosensitive screen for electrographic apparatus
06/1981
06/23/1981CA1103736A1 Electrostatographic imaging method
06/16/1981CA1103300A1 Method for information processing
06/03/1981EP0029643A1 Electrostatic photographic process, photosensitive material for use therein and transfer sheet bearing a fixed image prepared employing said process or material
06/03/1981EP0029584A1 Method for operating electrophotographic copying apparatus
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