| Patents for G03G 9 - Developers (22,748) |
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| 01/05/1982 | CA1115582A1 Toner powder containing an epoxy resin with epoxy groups modified by reaction with a monofunctional carboxylic acid and/or a monofunctional phenol |
| 12/29/1981 | US4308327 Motion picture film having digitally coded soundtrack and method for production thereof |
| 12/23/1981 | EP0042224A1 Fluorinated carbon-containing developer composition |
| 12/23/1981 | EP0042139A2 Process for the simultaneous preparation of several copies of a paper original, and a device for carrying it out |
| 12/22/1981 | US4307169 Microcapsular electroscopic marking particles |
| 12/22/1981 | US4307168 Amplification of developed electrographic image patterns |
| 12/22/1981 | US4307165 Plural imaging component microcellular arrays, processes for their fabrication, and electrographic compositions |
| 12/15/1981 | US4306009 Liquid developer compositions with a vinyl polymeric gel |
| 12/15/1981 | CA1114220A1 Low specific gravity magnetic carrier materials |
| 12/08/1981 | US4304830 Toner additives |
| 12/08/1981 | US4304486 Automatic bias and registration control system for electrophotographic copier |
| 12/08/1981 | US4304360 Grinding, particle sizes, cyclone separators |
| 12/08/1981 | CA1113767A1 Liquid development of charge pattern with areas of varying contrast potentials using developers with different colours and viscosity |
| 12/02/1981 | EP0040804A1 Developer with coated carrier particles and method of producing the same |
| 12/01/1981 | US4303749 Single component magnetic toner with epoxy resin |
| 11/24/1981 | US4302201 Method for developing electrical latent images |
| 11/18/1981 | EP0040095A2 A magnetic brush cleaning system |
| 11/18/1981 | EP0039719A1 Motion picture film having digitally coded soundtrack and method for production thereof. |
| 11/17/1981 | US4301228 Electrographic developing material and developing method employing said developing material |
| 11/17/1981 | US4301227 Electrophotographic liquid developer |
| 11/17/1981 | CA1112500A1 Carrier materials of insulating and conductive particles |
| 11/17/1981 | CA1112499A1 Polymerization and attrition method for producing toner with reduced processing steps |
| 11/10/1981 | US4299903 Emulsion polymerization process for dry positive toner compositions employs charge control agent as wetting agent |
| 11/10/1981 | US4299899 Toner additives |
| 11/10/1981 | US4299898 With styrene and butyl methacrylate |
| 11/03/1981 | US4298672 Electrography |
| 11/03/1981 | US4297970 Developing apparatus |
| 10/27/1981 | US4297427 Electrostatographic, having a core of a fluoropolymer surrounded by a coating of a second polymer |
| 10/21/1981 | EP0038208A1 Dispersion polymerisation process for making toner |
| 10/20/1981 | US4296192 Electrostatographic toner composition |
| 10/20/1981 | US4296176 Fusible resin and electroconductive material |
| 10/20/1981 | CA1111168A1 Two stage method for polymerizing to form toner |
| 10/15/1981 | WO1981002935A1 Dry-process toner |
| 10/14/1981 | EP0037475A1 Liquid developers for the development of electrostatic-charge images |
| 10/13/1981 | CA1110503A1 Encapsulation process employing phase transfer catalysts |
| 10/13/1981 | CA1110482A1 Imaging system with fluorescent and phosphorescent toner |
| 10/07/1981 | EP0037297A1 Powder for the development of latent images and process for its preparation |
| 10/06/1981 | US4293632 Attrition process for alteration of toner particles containing conductive materials |
| 10/06/1981 | US4293631 Electrographic toner compositions |
| 10/06/1981 | US4293627 Process of developing magnetic images and dry magnetic toner compositions |
| 09/22/1981 | US4291112 Modification of pigment charge characteristics |
| 09/22/1981 | US4291111 Nitrogen-containing additives for magnetic toners having hydrophobic and hydrophilic moiety |
| 09/16/1981 | EP0035573A1 Toner particles for electrophotography and electrophotographic process utilizing same |
| 09/09/1981 | EP0035187A2 Prolonged tack toners for the preparation of electric circuits |
| 09/08/1981 | US4288519 Softening irregularly shaped thermoplastic toner particles after anchoring pigment on the surfaces thereof |
| 09/08/1981 | US4288517 Toner for electrostatic photography containing resin coated silica particles |
| 09/08/1981 | US4288516 Polyester resin containing magnetic toner material and process for its use in flash fuser |
| 09/01/1981 | US4287287 Electrostatographic carrier coated with thixotropic compositions |
| 09/01/1981 | US4287284 And a developer of butyl methacrylate-styrene resin or butadiene-styrene resin with carbon black, and a carrier of polyvinylidene fluoride coated steel |
| 09/01/1981 | US4287283 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 |
| 09/01/1981 | US4287282 Composite magnetic developer |
| 09/01/1981 | US4287281 Magnetic toner composition and a method of making the same |
| 08/26/1981 | EP0034488A1 Carrier particle for electrostatographic developer mixture, developer mixture, and imaging process using the mixture |
| 08/26/1981 | EP0034423A1 A method of making coated carrier particles for electrostatographic developer mixtures |
| 08/25/1981 | US4286038 Positive toners containing alkyl picolinium compounds |
| 08/25/1981 | US4286037 Electrostatic image one-component electrically conductive thermoplastic resin containing powdered developer prepared by coagulation in emulsion |
| 08/25/1981 | CA1107801A1 Magnetic printing process and apparatus |
| 08/18/1981 | US4284702 Electrographic developing method |
| 08/18/1981 | US4284701 Electrophotographic toner of specific size distribution |
| 08/18/1981 | US4284700 Polymer coated transition metal powder as electrostatic image toner |
| 08/18/1981 | US4284696 Light transmission particle for forming color image |
| 08/05/1981 | EP0033249A1 Process for coating particles, and coated particles |
| 08/05/1981 | EP0033248A1 Magnetic toner and method for developing using same |
| 08/04/1981 | US4282304 Method of forming magnetic toner particles having a concentration of magnetic particles greater than 45 percent by weight by dispersion polymerization techniques |
| 08/04/1981 | US4282302 Ferrite powder type magnetic toner used in electrophotography and process for producing the same |
| 08/04/1981 | US4282296 High speed magnetographic imaging process |
| 07/28/1981 | CA1105759A1 Method for forming a spray dried toner of superparamagnetic particles dispersed in polymer |
| 07/22/1981 | EP0032155A1 Improved photocopying apparatus |
| 07/21/1981 | US4279621 Fuel additives |
| 07/15/1981 | EP0032125A2 Magnetic toner and method of developing magnetic images |
| 07/14/1981 | CA1105077A1 Single component magnetic toner |
| 07/14/1981 | CA1104861A1 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 |
| 07/07/1981 | US4277552 Magnetic developing process and toner containing high coercive force magnetic powder |
| 06/30/1981 | CA1103972A1 Photosensitive compositions containing vanadyl phthalocyanine and a phenzine desensitizing dye |
| 06/23/1981 | US4275136 Liquid developer for color electrophotography |
| 06/16/1981 | US4273849 Method of using liquid electrographic developers containing polymeric quaternary salts |
| 06/16/1981 | US4273848 Oriented magnetic toner |
| 06/16/1981 | CA1103080A1 Carrier particles with bet area less than twice the calculated geometric surface area |
| 06/16/1981 | CA1103079A1 Semi-conductive steel carrier particles |
| 06/09/1981 | US4272601 A mixture of resin and fluorine-containing organic surfactant having a resin-affinity; durability; electrostatics |
| 06/09/1981 | US4272600 Magnetic toners containing cubical magnetite |
| 06/09/1981 | US4272599 Ink development of electrostatic images |
| 06/02/1981 | US4271249 Powder particles containing a fumaric acid-propoxylated bisphenol polyester |
| 06/02/1981 | US4271248 Polymeric esterification product of a dicarboxylic acid and a diphenol |
| 06/02/1981 | CA1102165A1 Liquid developer containing a crude rubber and a toner coated with two resins and a polarity imparting dye |
| 05/27/1981 | EP0029323A2 Use of vinyl phenol polymer as colour developer for leuco pigment and colour developer composition and thermosensitive recording element comprising same |
| 05/26/1981 | US4269922 Charge inducing; xerography; reverse |
| 05/26/1981 | US4269920 Comprising a mixture of fine particles of a colorless and transparent resin and a dielectrical magnetizable toner; electrostatics; opposite polarities |
| 05/19/1981 | US4268615 Method for producing relief |
| 05/19/1981 | US4268599 Treated toner magnetic carrier and method of making the same |
| 05/19/1981 | US4268598 Developing powder composition containing fluoroaliphatic sulfonamido surface active agent |
| 05/19/1981 | US4268597 Method, apparatus and compositions for liquid development of electrostatic images |
| 05/12/1981 | US4267247 Low specific gravity magnetic carrier materials |
| 05/12/1981 | US4267246 Releasing; antisticking agents; developers |
| 05/05/1981 | US4265995 Electrographic developers |
| 05/05/1981 | US4265994 Pressure fixable capsule toner |
| 05/05/1981 | US4265993 Powder and a polymer of styrene, an acrylic acid and an acrylate |
| 05/05/1981 | US4265992 Dry blend with fe3o4 or fe2o3 and carbon black |
| 04/30/1981 | WO1981001204A1 Motion picture film having digitally coded soundtrack and method for production thereof |
| 04/28/1981 | US4264702 Positive toners containing alkyl morpholinium compounds as charge control agents |