Patents for G03G 9 - Developers (22,748) |
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04/28/1981 | US4264700 Method of forming magnetic toner particles having a concentration of magnetic particles greater than 45 percent by weight by dispersion polymerization techniques |
04/28/1981 | US4264699 Liquid developer for use in electrophotography |
04/28/1981 | US4264698 Spherical magneto-sensitive material and flowable particles |
04/28/1981 | US4264697 Imaging system |
04/28/1981 | US4264648 Thermally decomposing transition metal carbonyls to impregnate glass beads with metals or metal oxides |
04/21/1981 | US4263389 Electrographic latent imaging, development |
04/14/1981 | US4262078 Light transmitting particle for forming color image |
04/14/1981 | US4262077 Printing plates of extended press life |
04/14/1981 | US4262076 Method for manufacturing magnetically attractive toner particles and particle |
04/14/1981 | CA1099438A1 Method of sizing monomer droplets for suspension polymerization to form small particles |
04/14/1981 | CA1099437A1 Non-aqueous resin dispersion and method of manufacturing thereof |
04/08/1981 | EP0026211A1 A method for dry sensitization of an insulating surface. |
04/07/1981 | CA1098751A1 Electrographic toner and developer composition containing a 4-aza-1-azoniabicyclo-(2.2.2.)-octane salt as a charge control agent |
04/01/1981 | EP0026096A1 Image-receiving sheet and a process of producing a dye image therewith |
03/31/1981 | US4259428 Liquid developer for electrostatic latent image |
03/31/1981 | US4259427 Ferromagnetic and dielectric toner particles |
03/31/1981 | US4259426 Narrow range of particle sizes |
03/31/1981 | CA1098357A1 Electrophoretic migration imaging process with neutral density bisazo naphthalenediol pigments |
03/24/1981 | US4258116 Organic semiconductor |
03/24/1981 | US4258112 Sensitizer for electrophoretic migration imaging dispersions |
03/17/1981 | US4256824 Method using positively charged electrophotographic toner containing amido dialkyl hydroxy ammonium compound |
03/17/1981 | US4256818 Magnetic or electrostatographic imaging and high speed fusing method uses polyamide resin in toner |
03/11/1981 | EP0024762A2 Electrophotographic process for forming a visible image |
03/05/1981 | WO1981000628A1 Toner particles for electrophotography and electrophotographic process utilizing same |
03/03/1981 | US4254205 Dry developers |
03/03/1981 | US4254204 Toner, core and secondary particles |
03/03/1981 | US4254203 Dry process developing method employing magnetic toner |
03/03/1981 | US4254201 Pressure sensitive adhesive toner of clustered encapsulated porous particles for use in electrostatic photography |
03/03/1981 | CA1096682A1 Luminescent material dispersion comprising mixed polymers of vinyl pyridines and methacrylates |
02/25/1981 | EP0024169A2 Electrically photosensitive particles for electrophoretic migration imaging processes, dispersions of these particles, and processes using such dispersions |
02/24/1981 | US4252921 Images having good wear resistance |
02/24/1981 | US4252882 Developing electrophotographic images using aqueous ink and treating smooth, hydrophobic image surface with cleaning liquid |
02/24/1981 | US4252881 Electrography, toners, steel beads |
02/24/1981 | US4252672 Preparation of colloidal iron dispersions by the polymer-catalyzed decomposition of iron carbonyl and iron organocarbonyl compounds |
02/24/1981 | US4252671 Preparation of colloidal iron dispersions by the polymer-catalyzed decomposition of iron carbonyl and iron organocarbonyl compounds |
02/24/1981 | CA1096222A1 Electrographic liquid developers containing azo dye marking particles derived from 2,3-naphthalenediol or derivatives thereof |
02/17/1981 | US4251616 Magnetic toners and development process |
02/17/1981 | US4251611 Process for formation of permanent image |
02/10/1981 | US4250241 Acrylic graft polymers |
02/03/1981 | US4248954 Surfaces coated with perfluorocarboxylic acids in a polymeric binder; aging resistance |
02/03/1981 | US4248950 Electrostatic developer mix containing either MoS2, TiS2, WS.sub.2 |
01/27/1981 | US4247597 Electroscopic carrier particles having a carboxylic acid surface treatment |
01/27/1981 | US4247459 Developers in electrography |
01/27/1981 | US4246839 Nonimpact printer |
01/22/1981 | WO1981000156A1 Improved photocopying apparatus |
01/21/1981 | EP0022639A1 Electrostatographic toner composition and electrostatographic developer composition |
01/21/1981 | EP0022638A1 Electrostatographic toner composition and developer composition comprising the same |
01/20/1981 | US4246332 Electrophotographic toner comprising low and high molecular weight blend of binder resins |
01/20/1981 | US4246331 Electrophotographic developers containing sublaminate dyes |
01/20/1981 | US4246208 Dust-free plasma spheroidization |
01/20/1981 | CA1093883A1 Liquid developer containing a dispersed toner comprising a coloured substance bearing a resinous copolymer |
01/14/1981 | EP0022347A1 Electrostatographic developer mixture |
01/13/1981 | US4245026 Production of low density coated magnetic polymer carrier particulate materials |
01/13/1981 | US4245024 Development process for an electrophotographic duplicator employing magnetic toner |
01/13/1981 | US4245022 Comprising abrasive particles exhibiting no frictional charging |
01/08/1981 | WO1981000024A1 Dry magnetic pressure-fixable developing powder |
01/07/1981 | EP0021851A1 Electrostatographic toner composition |
01/06/1981 | US4243736 Liquid developer and copolymer polarity control agent for use therewith |
12/30/1980 | US4242434 Magnetic carrier, measurement of conductivity |
12/23/1980 | US4241161 Applying two separate charges |
12/23/1980 | US4241159 Electrophotographic liquid developer comprising acrylic or methacrylic acid ester of hydrogenated abietyl alcohol polymer |
12/23/1980 | CA1091970A1 Magnetic non-conductive one component toner with a lubricant coating and method of preparation |
12/16/1980 | US4239845 Electrophotographic copying method using two toners on magnetic brush |
12/16/1980 | CA1091497A1 Process for electrophotographic image formation by toner transfer using a corona |
12/10/1980 | EP0020181A1 Process for preparing coated carrier particles for electrostatographic developers |
12/09/1980 | US4238562 Transparent resin binder, spirobenzopyran indole, coloring agent |
12/09/1980 | US4238558 Low density magnetic polymer carrier materials produced by metal carbonyl thermal decomposition |
12/09/1980 | CA1091001A1 Ferromagnetic toner |
12/02/1980 | CA1090864A1 Magnetic interpositive method |
11/11/1980 | US4233388 Method for making toner particles |
11/11/1980 | US4233387 Magnetic metal cores with fused thermoplastic resin coating |
11/11/1980 | CA1089276A1 Hybrid liquid toners including an amphipathic polymer, a charge director, a thermoplastic fixer and a dispersant |
11/04/1980 | US4232323 Magnetographic apparatus |
11/04/1980 | CA1088798A1 Electrostatographic developing material containing toner particles and a polystyrene additive |
10/28/1980 | US4230787 Magnetic toner for developing latent electrostatic images and a process for the preparation thereof |
10/28/1980 | US4230784 Electrostatic image forming process and particles comprising reactive sublimable dye, subliming developer and conductive substance |
10/21/1980 | US4229513 Chlorinated polyethylene, and copolymer of polar monomer and solubilizing monomer |
10/21/1980 | US4229512 Which decomposes, becoming colorless, to leave an image the color of the permanent colorant |
10/16/1980 | WO1980002222A1 A method for drysensitization of an insulating surface and a powder for use with the method |
10/07/1980 | US4226843 Process and apparatus for production of spherical grain ferrite powder |
10/07/1980 | CA1087014A1 Liquid developer for color electrophotography and process for preparation of the same |
10/07/1980 | CA1087013A1 ELECTROPHOTOGRAPHIC CARRIER OF MAGNETICALLY ATTRACTABLE CARRIER COATED WITH A METAL ION-LINKED CARBOXYLIC ACID .alpha.-OLEFIN COPOLYMER |
09/30/1980 | US4225660 Treated toner carrier and method of making the same |
09/23/1980 | US4224396 Magnetic toner materials containing quaternary ammonium polymers as charge control agents |
09/17/1980 | EP0015744A1 Process of preparing coated carrier particles for electrostatographic developers |
09/16/1980 | US4223086 Electrostatic process using liquid developer comprising polymeric phosphonate dispersant |
09/16/1980 | US4223085 Semi-conductive nickel carrier particles |
09/16/1980 | US4222982 Process for preparing toner of improved mechanical properties |
09/09/1980 | US4221856 Electrographic toner containing resin-compatible quaternary ammonium compound |
09/09/1980 | US4221554 Method and apparatus for forming spherical particles of thermoplastic material |
09/03/1980 | EP0014933A1 Device for supplying toner to an electrophoretic developing apparatus |
09/02/1980 | US4220698 Direct imaging pressure fixable magnetic toners |
08/26/1980 | CA1084325A1 Dry developer particle of resistivity higher than 10 su14 xx ohm-cm comprising thermoplastic resin and magnetic material |
08/19/1980 | US4218530 Single component magnetic toner |
08/19/1980 | US4218362 Powder marking agent and marking method |
08/12/1980 | US4217406 Cross-linking reaction during melt kneading produces resinous electrophotographic toner |
08/05/1980 | CA1082973A1 Carrier with coating of resin and copper tetra-4- (octadecylsulfonamido) phthalocyanine and use thereof in colour electrophotographic development |
08/05/1980 | CA1082971A1 X-ray system with electrophoretic imaging |
07/29/1980 | US4215193 Comprising a colorless spheroidal-shaped polymer/ d to ion exchange membrane |
07/22/1980 | US4213872 Sludge resistant liquid developer for electrostatic images containing a metal-dithiooxamide pigment or coating |