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| Number | Title | Issue Date |
| 7723005 | Liquid developer A liquid developer contains an insulation liquid containing as its main component a glyceride of an unsaturated fatty acid, toner particles dispersed in the insulation liquid; and an oxidation polymerization accelerator for accelerating oxidation polymerization reac... | 05/25/2010 |
| 7563550 | Liquid developer and image forming apparatus A liquid developer which has excellent preservability, storage stability for a long period of time, and fixing characteristics of toner particles and which is also harmless to the environment is provided. The liquid developer contains an insulation liquid and toner ... | 07/21/2009 |
| 7422834 | Electrostatic latent image developing magenta toner, electrostatic latent image developer, toner manufacturing method, and image forming method An electrostatic latent image developing magenta toner includes at least quinacridone pigment, naphthol pigment, and a release agent. Colorant of the toner satisfies conditions (a) and (b): (a) an average primary particle size D50 of a quinacridone pigment represent... | 09/09/2008 |
| 7332457 | Agricultural chemical suspensions Stable concentrated suspensions readily dispersible in water comprising one or more agricultural solids, a single non-ionic surfactant and a water-soluble glycol liquid. The agricultural solids include fertilizers, adjuvants, herbicides, pesticides and combinations ... | 02/19/2008 |
| 7229398 | Circular-shaped metal structure and method of fabricating the same A circular-shaped metal structure is fabricated by plastic-working and has a wall thickness in the range of 0.03 mm to 0.09 mm both inclusive. A film composed of one of (a) silicon and fluorocarbon resin and (b) copper is coated on a surface of the circular-shaped m... | 06/12/2007 |
| 7033713 | Electrographic patterning of conductive electrode layers containing electrically-conductive polymeric materials A method for producing an electrode pattern in a conductive polymeric layer comprising the steps of: (a) contacting a charge pattern with an electrographic developer composition comprising a carrier and marking particles having a polarity opposite that of said charg... | 04/25/2006 |
| 7008744 | Oil based ink composition for inkjet printer An oil based ink composition for inkjet printer comprising colored resin particles obtained by dispersion polymerization of a monofunctional polymerizable monomer (A) and a macromonomer (M) copolymerizable with the monomer (A) with coloring component fine particles ... | 03/07/2006 |
| 6341208 | Absorbent coating for contact transfer of liquid toner images The efficient contact transfer of liquid toner images is obtained by using an absorbent coating material over an image bearing member. The absorbent coating material absorbs carrier fluid from a developed image. By absorbing carrier fluid from the develop... | 01/22/2002 |
| 6183931 | Liquid developer processes A process for the preparation of a liquid developer comprised of thermoplastic resin particles, pigment, a charge additive or adjuvant, and a charge director, which process comprises a supercritical solvent extraction to enable a developer with a high sol... | 02/06/2001 |
| 6122473 | Developer carrying member for carrying developer, apparatus unit detachably mountable on the main assembly of image forming apparatus, and image-forming apparatus A developer carrying member for carrying a developer is includes a substrate and a resin coat layer which is formed on the surface of the substrate and contains a binder resin and a conductive fine powder. The binder resin is composed of a copolymer havin... | 09/19/2000 |
| 6108506 | Developer and magnetic image formation apparatus using the same A magnetic image forming apparatus includes a developer for developing a magnetic latent image. The developer has a liquid ink and particles of a resin to be dispersed in the liquid ink. The particles contain magnetic powder formed of plural parts dispers... | 08/22/2000 |
| 6100332 | Coating composition for electrifying members and electrophotographic carrier A coating composition comprising a mixture of a methyl-rich silicone resin (S-1) and an acrylic resin (A-1) obtained by polymerizing at least one radical polymerizable vinyl monomer (M-1), or a reaction product obtained by reacting the silicone resin (S-1... | 08/08/2000 |
| 5981133 | Liquid developer and image forming apparatus A liquid developer having a superior sedimentation characteristic and floating characteristic and an image forming apparatus using said liquid developer, wherein said liquid developer comprising toner dispersed in liquid medium and the difference in speci... | 11/09/1999 |
| 5958643 | Liquid developer having polymer particles of a flat configuration dispersed in a dispersion medium A liquid developer having polymer particles dispersed in a dispersion medium, wherein the polymer particles have a mean volume particle size d50 of 0.5~5.0 μm, and degree of flatness (longest diameter of a single particle/shortest diameter of ... | 09/28/1999 |
| 5840453 | Solvation-based charge direction of electrophotographic developer compositions A solvation-based method for charging toner particles in a liquid electrophotographic developer composition is provided. The method makes use of a material containing specific salvation sites which are incorporated into the resinous phase of the toner, an... | 11/24/1998 |
| 5789133 | Liquid developer Toner particles having a polar group of either an acid group or a basic group at least on surface layers thereof are employed, and a polymer, which contains a polar group of reverse polarity to the polar group of the surface layers of the toner particles ... | 08/04/1998 |
| 5783350 | Developer for electrostatic photography and image forming method The developer for electrostatic photography according to the present invention comprises toner particles containing a thermoplastic resin and a colorant dispersed in an electrically insulating carrier having a melting point above room temperature wherein ... | 07/21/1998 |
| 5761583 | Liquid nitrogen printing process and apparatus and toner composition A cryogenic liquid, particularly liquid nitrogen, is used as a non-conductive fluid medium for freezing paper and as the liquid toner for electrostatic imaging. A web or sheet of paper is frozen using the cryogenic liquid to provide a dielectric surface f... | 06/02/1998 |
| 5558968 | Dendrimeric toner particles for liquid electrophotography This invention comprises a single-component dendrimeric toner particle, and methods of making and using the toner particle in the liquid EP process. By using dendrimeric chemistry, a dendrimeric toner particle may be made that has controlled content, stru... | 09/24/1996 |
| 5529874 | Liquid developer for electrophotography A liquid developer for electrophotography comprising a carrier liquid having dispersed therein toner particles containing a binder resin and a colorant, wherein said carrier liquid contains at least one ether compound selected from compounds represented b... | 06/25/1996 |
| 5525449 | Liquid developer compositions with alcohol A liquid developer comprised of a liquid, thermoplastic resin particles, pigment, and a charge director containing an alcohol.... | 06/11/1996 |
| 5384225 | Liquid developer for latent electrostatic images A liquid developer for developing latent electrostatic images comprises (i) a carrier liquid comprising at least one component selected from the group consisting of a phenylmethyl silicone oil and a cyclic dimethyl polysiloxane, and (ii) toner particles d... | 01/24/1995 |
| 5302482 | Liquid electrophotographic toner A liquid electrophotographic toner having a coordinated association of steric stabilizer and charge directing moiety displays improved characteristics when the charge directing moiety has a monovalent alkali metal or ammonium cation bonded thereto.... | 04/12/1994 |
| 5300990 | Liquid electrophotographic printer developer The invention is a liquid toner developer for a laser printer. There is an open bath of liquid toner about 50 microns below a moving outer bottom photoconductor surface energized by actinic light. Immediately downstream of the liquid bath and adjacent to ... | 04/05/1994 |
| 5264622 | Water-soluble methylenebis(dialkylaniline) derivatives and application thereof Novel water-soluble methylenebis(dialkylaniline) derivatives of the following general formula and salts thereof are disclosed. They are useful as dye-forming substances in quantitative determination of peroxides in the copresence of peroxidase or the like... | 11/23/1993 |
| 5254424 | High solids replenishable liquid developer containing urethane-modified polyester toner resin A high solids replenishable electrostatic liquid developer concentrate contains toner particles formed from a urethane modified polyester. This composition can be concentrated up to toner solids and subsequently sonicated to a working strength dilution.... | 10/19/1993 |
| 5231454 | Charge director replenishment system and method for a liquid toner developing apparatus A system for imaging with liquid developer, the developer including carrier liquid, toner particles and charge director, the system including an electrostatic imaging surface apparatus for forming an electrostatic image on the electrostatic imaging surfac... | 07/27/1993 |
| 5153090 | Charge directors for use in electrophotographic compositions and processes Novel compounds useful as charge directors in color electrophotographic processes are described. Developer compositions containing the novel charge directors are provided as well. The developer compositions display high particle-mediated conductivity and ... | 10/06/1992 |
| 5069995 | Stain elimination in consecutive color toning A novel liquid developer composition for use in electrophotographic processes, particularly consecutive color toning, is described. The composition contains, dispersed in a hydrocarbon medium, toner particles of colorant-containing resin and an antistatic... | 12/03/1991 |
| 5045425 | Electrophotographic liquid developer composition and novel charge directors for use therein An electrophotographic liquid developer composition is provided containing a charge director which is a salt of a trivalent metal and an aromatic acid such as diisopropyl salicylic acid. For consecutive color toning processes, it is preferred that the con... | 09/03/1991 |
| 4886730 | Liquid developer for electrostatic photography A life of a starting liquid developer for electrostatic photography is prolonged by using a supplemental developer that returns an electrically charged state of the developer varied by repeated use of the developer to an original or appropriate state of t... | 12/12/1989 |
| 4869991 | Charge director composition for liquid toner formulations A charge director composition dispersed in at least one solvent comprising: A. a salt mixture comprised of 1-10 parts by weight each of: (i) a chromium salt of a C14-18 alkyl salicylic acid; (ii) a calcium didecyl sulfosuccinate; and (iii) a salt of the didec... | 09/26/1989 |
| 4758492 | Weakly acidic crosslinked vinyl polymer particles and coating compositions and electrographic elements and developers containing such particles The invention provides new weakly acidic crosslinked vinyl polymer particles having utility as components of coating compositions, liquid electrographic developers, and layers of electrographic elements and records. The polymeric particles of the inventio... | 07/19/1988 |
| 4636452 | Method for producing liquid developer for electrophotography Disclosed is a method for producing a resin dispersion type electrophotographic liquid developer containing resin particles dispersed in a high insulation hydrocarbon medium which comprises, in the presence of a first polymer dissolved in said medium whic... | 01/13/1987 |
| 4547449 | Liquid electrographic developers containing quaternary ammonium charge-control polymers having acidic monomers Liquid electrographic developers are disclosed comprising an electrically insulating liquid carrier, toner, a charge-control agent and a charging agent. The charge-control agent is a carrier-soluble, addition copolymer of a quaternary ammonium salt monome... | 10/15/1985 |
| 4521505 | Electrostatographic suspension developer and process for the production thereof The suspension developer contains as a toner polymer-sheathed pigment particles in an electrically insulating carrier liquid. The sheath of the pigment particles is formed by precipitation polymerization from various (meth)acrylates, a cross-linker and, o... | 06/04/1985 |
| 4378422 | Method and apparatus for transferring developed electrostatic images to a carrier sheet A developed electrostatic image is transferred from a support to a carrier sheet over a gap of between twenty and seventy microns. The gap is formed by dusting onto the developed electrostatic image particles of such size as to form the required gap or by... | 03/29/1983 |
| 4374918 | Thermally stable liquid negative developer Disclosed is a thermally stable liquid negative developer comprising an organic liquid carrier, a pigment, a stabilizing gel on the borderline of solubility in the carrier, a latex which imparts a fixative function to the developer, and a two component ch... | 02/22/1983 |
| 4332851 | Receptor sheet for electrophotography A coated paper suitable for use in an electrophotographic process for receiving an image formed by a magnetic brush device with a single component developer is disclosed. The paper is coated with a composition made of a styrene/butadiene latex and a cross... | 06/01/1982 |
| 4301227 | Electrophotographic liquid developer An electrophotographic developer containing a carrier, a resinous, waxy or varnish compound and as a color component, a phosphotungstomolybdic acid lake of a mixture of an indolenine dye of the formula (I): ##STR1## wherein A is a benzene or naphthal... | 11/17/1981 |
