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| Number | Title | Issue Date |
| 8012663 | Toner manufacturing method, toner manufacturing apparatus, and toner manufactured by way of the toner manufacturing method thereof A method of manufacturing a toner includes preparing a droplet forming device, comprising a storage portion to store a toner composition solution, a thin film formed from a rigid material, bonded to the storage portion by a bonding material, and provided with a nozz... | 09/06/2011 |
| 7851120 | Developing agent and method for producing the same The dispersion liquid including toner material particles is introduced into a mechanical shearing device including a heating unit, a mechanical shearing unit, and a cooling unit, heated to a temperature not lower than the glass transition temperature of the polyeste... | 12/14/2010 |
| 7833687 | Aqueous dispersion of fine resin particles, method for producing aqueous dispersion of fine resin particles, and method for producing toner particles The present invention provides an aqueous dispersion of nonspherical fine resin particles having excellent storage stability and processability such as aggregation and adherence to other substances, a method for producing the aqueous dispersion of fine resin particl... | 11/16/2010 |
| 7781139 | Toner manufacturing method A toner manufacturing method that allows production of toner having desired characteristics with stability in accordance with fusion emulsification technique for obtaining a toner by granulating a resin kneaded product while dispersing it in an aqueous medium. A res... | 08/24/2010 |
| 7713675 | Method of manufacturing toner There is provided a method of manufacturing a toner, using a shearing force for granulation, in which bubbles are prevented from arising upon application of the shearing force, thus manufacturing a diameter-reduced toner having a particle diameter of about 5 μm whi... | 05/11/2010 |
| 7608379 | Toner and manufacturing method thereof A toner of excellent anti-hot offsetting property, with no variety of the charging performance and suitable as a toner for the development of electrostatic images, and a manufacturing method thereof are provided. At first, a crosslinked resin at least containing a t... | 10/27/2009 |
| 7563555 | Toner, developer including the toner, and method for fixing toner image A toner composition including toner particles including a binder resin including a modified polyester resin, and a second resin having a weight average molecular weight of from 2,000 to 10,000; a colorant; a release agent; and a particulate material which is present... | 07/21/2009 |
| 7419756 | Dry toner, method for manufacturing the same, image forming apparatus, and image forming method A dry toner contains fine particles having average sphericity of 0.93 to 0.99, a content of the fine particles having a particle diameter of 2 μm or less in the dry toner is 20% by number or less. A method for manufacturing a dry toner includes a process for disper... | 09/02/2008 |
| 7374848 | Toner and method or preparing the toner A toner including a binder; a colorant; and a wax, wherein the binder includes a polyester resin; and a reaction product of a polymer having a group capable of reacting with an active hydrogen with a compound having an active hydrogen, wherein the polyester resin in... | 05/20/2008 |
| 7347982 | Apparatus and method for recovering carbon black from pyrolysis byproducts A system (10), process and apparatus are disclosed for purifying carbon black (15) containing sulfur and metal oxide impurities by digesting (20) the impure carbon black in an acid to extract the metal oxide (25). Sulfur (45) is th... | 03/25/2008 |
| 7303847 | Dry toner A dry toner is provided that is prepared by a method including the steps of (A) dissolving or dispersing a toner composition in an organic solvent to prepare a toner composition liquid and (B) dispersing the toner composition liquid in an aqueous liquid which contai... | 12/04/2007 |
| 7294443 | Toner composition and method for manufacturing the toner composition A toner composition including toner particles including a binder resin; and a colorant, and a charge controlling agent which is at least located on a surface of the toner particles, wherein the toner composition has a spherical degree of from 0.96 to 0.99, and where... | 11/13/2007 |
| 7285592 | Pigments dispersions based on water and acrylate The invention relates to an aqueous pigment preparation containing an organic and/or inorganic pigment dispersed in an acrylate resin solution and a dispersion agent. The preparation is characterised in that the acrylate resin is a copolymer consisting essentially o... | 10/23/2007 |
| 7252921 | Toners with improved pigment dispersion The invention relates to color toner compositions prepared from an aqueous pigment concentrate dispersion which renders a toner exhibiting improved pigment dispersion, and consequently improved image density and color characteristics. ... | 08/07/2007 |
| 7247416 | Toner processes and compositions thereof The invention relates to color toner compositions prepared from a process for the preparation of a dry toner powder from an aqueous pigment concentrate dispersion comprising: blending at least an aqueous-based pigment concentrate dispersion and a resin to produce a ... | 07/24/2007 |
| 7247415 | Process for preparing toner particles and toner particles Toner particles are prepared by a process comprising providing an extrusion apparatus; adding resin particles and additive particles to a supply means in the extrusion apparatus; adding the resin particles and the additive particles to a blending chamber in the extr... | 07/24/2007 |
| 7244540 | Liquid toners comprising amphipathic copolymeric binder having insoluble components in the shell portion thereof The invention provides liquid electrographic toner compositions comprising a liquid carrier having toner particles dispersed in the liquid carrier. The liquid carrier has a Kauri-Butanol number less than about 30 mL. The toner particles comprise polymeric binder com... | 07/17/2007 |
| 7169525 | Toner, developer, image forming apparatus, process cartridge and image forming process The object of the present invention is to provide a toner which is excellent in shelf stability for a long term by producing the toner through controlling the dispersion condition of the wax around the toner surface and through improving, not only the off-set resist... | 01/30/2007 |
| 7147979 | Toner for developing electrostatic image A toner for developing an electrostatic image, comprising, a binder resin, a colorant, a charge control agent, and a parting agent, and wherein: a volume average particle diameter (Dv) of toner particles is 3 to 10 μm; a ratio (Dv/Dp) of Dv to a number average part... | 12/12/2006 |
| 7144668 | Toner and two-component developer The present invention provides a toner: comprising a binder resin comprising a polyester unit, a colorant, a releasing agent, and inorganic fine particles; has a weight average particle diameter of 3.0–6.5 μm; has an average circularity of particles in the toner ... | 12/05/2006 |
| 7141347 | Process for manufacturing a toner A toner manufacturing process capable of providing a toner with uniform charge amounts. A mixture of a synthetic resin having an acidic leaving group and a coloring agent as essential components is emulsified in an aqueous solution to produce synthetic resin particl... | 11/28/2006 |
| 7141344 | Electrostatic image developer and image-forming process An image-forming process, which comprises steps of developing an electrostatic latent image on an inorganic photoreceptor with an electrostatic image developer containing 0.1 to 5.0% by weight, based on the toner particles, of silicon carbide fine powder of 0.2 to 1... | 11/28/2006 |
| 7122250 | Composite resin particle with specific shape factor The invention is a composite resin particle useful as an additive for paints or coatings, powder coatings, cosmetic additives, slush molding resins, spacer for electronic part assembly, standard particles for electric measurement devices, toner, hot melt adhesive as... | 10/17/2006 |
| 7118843 | Method for manufacturing toner, toner, fixing device, and image forming apparatus A toner having high mechanical strength and being capable of exhibiting a sufficient fixing property in a wide temperature range, and a method for manufacturing such a toner are provided. Further, a fixing device and an image forming apparatus in which such a toner ... | 10/10/2006 |
| 7112395 | Color toner To provide a color toner which is effective in mitigating contamination of a charging member, which is good at low temperature fixing in high-speed copying, and which is excellent in blocking resistance and electrification stability in continuous copying. Provided i... | 09/26/2006 |
| 7090955 | Black toner, image forming method and image forming apparatus using the toner A toner for developing an electrostatic latent image, including toner particles each containing a black colorant and a binder resin, wherein the black colorant comprises a metal oxide having a number average particle diameter in the range of 20 to 100 nm in an amoun... | 08/15/2006 |
| 7074541 | Toner for electrophotography, method of manufacturing the toner, developer, development method, transfer method, and process cartridge using the toner The method of manufacturing toner for electrophotography includes the steps of dissolving or dispersing a toner composition containing a resin and a coloring agent into polymerizable monomers to provide a solution or a dispersed system, emulsifying the solution or t... | 07/11/2006 |
| 7033718 | Toner and image forming apparatus using the toner A toner including toner particles including a binder resin and a colorant, wherein particles of the toner have such a rolling property as to relatively easily roll in one direction compared to other directions. It is preferable that the toner particles preferably ha... | 04/25/2006 |
| 6989222 | Liquid developer, method of manufacturing the liquid developer, and image forming method and apparatus A liquid developer, a method of manufacturing the same and a method and apparatus for forming an image, which can attain high transfer efficiency and appropriate tolerance to repetitive image formation. The liquid developer includes toner particles dispersed in an e... | 01/24/2006 |
| 6969574 | Black toner, image forming method and image forming apparatus using the toner A toner for developing an electrostatic latent image, including toner particles each containing a black colorant and a binder resin, wherein the black colorant comprises a metal oxide having a number average particle diameter in the range of 20 to 100 nm in an amoun... | 11/29/2005 |
| 6861193 | Fluorescent liquid toner and method of printing using same Charged toner particles for use in electrostatic imaging, comprising: a toner polymer; and at least one particulate fluorescent material, wherein the toner particles are formed with fibrous extensions. ... | 03/01/2005 |
| 6852463 | Apparatus for producing toner, method for producing toner, and toner An apparatus for the production of a toner from a starting material having a fluidity includes a head portion and a solidifying portion. The head portion for ejecting the starting material includes a starting material storing portion, which stores the starting mater... | 02/08/2005 |
| 6821703 | Method for producing polyester resin particle dispersion material, method for producing polyester resin particles, and method for producing electrophotographic spherical toner A polyester resin particle dispersion material, in which the average particle size can be easily controlled within a broad range and is less likely to form irregular particles, and which is also suited for use in adhesives, is produced by dispersing a resin melt con... | 11/23/2004 |
| 6821697 | Toner for electrostatic image development and method of producing the same A toner for electrostatic image development made of a polyester resin having a spherical or generally spherical shape, which allows the use of a so-called oilless fixation system capable of fixing, without employing an anti-offset solution as a heat roller fixation ... | 11/23/2004 |
| 6436599 | Toner, method of producing toner, and image forming method using toner The present invention provides a toner comprising a binder resin, a colorant, and a releasing agent wherein the releasing agent has an endothermic starting temperature of 40° C. or more and a melting point of 120° C. or less which are measured using a d... | 08/20/2002 |
| 6380297 | Polymer particles of controlled shape A method for the preparation of polymer particles comprising the steps of: a) forming an organic phase by dissolving a polymer material in a solvent; b) dispersing the organic phase in an aqueous phase comprising a particulate stabilizer and homogenizing ... | 04/30/2002 |
| 6287742 | Toner compositions and method of producing toner for developing latent electrostatic images A process for producing microspheric toner particles suitable for color toner applications includes forming coarse particles of an amorphous polymer with one or more pigments and optionally a charge control agent followed by reducing the particle size suc... | 09/11/2001 |
| 6258503 | Production process of colored fine particulate composition and colored fine particulate composition produced by the process A process is provided for producing a colored fine particulate composition by dissolving or dispersing a coloring matter or a coloring matter and charge control agent in a condensation-polymerized resin component and forming the resultant resin compositio... | 07/10/2001 |
| 6235444 | Toner for developing electrostatic latent image and manufacturing method thereof The present invention relates to toner comprising a binder resin and a colorant, wherein the toner is manufactured by a wet-type granulation method using an organic dispersing agent, an aqueous extract liquid having a surface tension of 50 to 72 mN/m at 2... | 05/22/2001 |
| 6183924 | Electrostatic image developer The present invention provides a novel developer comprising a spherically particulate toner having a volume-average particle diameter of from about 1 to 6 μm for use in the development of electrostatic image in electrophotographic copying machines or pri... | 02/06/2001 |
