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| Number | Title | Issue Date |
| 8168361 | Curable toner compositions and processes An emulsion aggregation toner composition includes toner particles including: an amorphous polyester resin; an optional crystalline resin; an optional colorant; an optional wax; an optional coagulant; and a polymeric or oligomeric hydroxy ketone photo initiator capa... | 05/01/2012 |
| 8084178 | Non-magnetic toner A non magnetic toner comprises toner particles each containing at least a binder resin, a colorant and a wax component. The toner further comprises an inorganic fine powder. A storage elastic modulus at 110° C. (G′110) of the non magnetic toner is in a... | 12/27/2011 |
| 8080359 | Image forming method An objective is to provide an image forming method by which sufficient fixing strength can be obtained at a low temperature of 120° C., excellent print images with no belt-like or streak image defect can be obtained, and no document offsetting is generated even tho... | 12/20/2011 |
| 8053154 | Toner and image forming method A toner for electrostatic charge development is provided where the toner comprises a colorant and a resin and contains an organic boron compound represented by a following chemical formula (A) as a charge controlling agent, further the toner is treated with an inorg... | 11/08/2011 |
| 8039185 | Toner for developing a latent electrostatic image, method for producing the same, image-forming apparatus and process cartridge using the same To provide a toner for developing a latent electrostatic image comprising at least a colorant, a wax, and a binder resin, wherein Iwax (s) is a value measured by FTIR-ATR Spectroscopy before heating a mirror-surfaced pellet formed by compressing and molding the tone... | 10/18/2011 |
| 7998648 | Electrophotographic developing agent An electrophotographic developing agent is provided that includes a binder resin, a releasing agent, a colorant, and a charge control agent. By using a binder resin having a high acid value and a mixture of two waxes having different melting points as a releasing ag... | 08/16/2011 |
| 7968265 | Toner, developer, toner container, process cartridge, image forming method, and image forming apparatus A toner is provided that includes a release agent, a colorant, a binder resin including a polyester resin, and a fixing auxiliary component including an ester compound of a fatty acid with an alcohol. The fatty acid includes stearic acid and behenic acid in a total ... | 06/28/2011 |
| 7943281 | Black toner In a black toner having at least a binder resin and an iron-titanium composite oxide as a colorant; the iron-titanium composite oxide is contained in a specific amount; the black toner has a specific weight average particle diameter and a specific saturation magneti... | 05/17/2011 |
| 7939232 | Toner, process for producing toner, and two-component developing agent A toner or two-component developer is obtained by mixing, aggregating, and heating resin particles, colorant particles, and wax particles in an aqueous medium. A gel permeation chromatography (GPC) measurement of the resin particles shows that a weight-average molec... | 05/10/2011 |
| 7923190 | Toner In a toner containing at least a binder resin, a colorant, an ester compound and a low-melting material, the ester compound is an ester of dipentaerythritol with a carboxylic acid having 18 or more to 25 or less carbon atoms, and, where the melting point of the este... | 04/12/2011 |
| 7846631 | Toner Provided is a toner including toner particles each containing at least a binder resin, a colorant, and a wax component, and an inorganic fine powder, the toner being wherein: in a microscopic compression test on the toner, a recovery ratio Z(25) and the gradient of ... | 12/07/2010 |
| 7833686 | Toner and method for producing the same, toner kit, and developer, process cartridge, image forming method and image forming apparatus A toner kit containing at least a black toner, a yellow toner, a magenta toner and a cyan toner, wherein these toners have at least the binder resin, the colorant and the charge controlling agent having the molecular structure containing K+ as the counterion, when t... | 11/16/2010 |
| 7829253 | Toner composition Toner compositions having high molecular weight and improved melt flow are provided. ... | 11/09/2010 |
| 7811733 | Electrostatic latent image toner, and manufacture thereof, and electrostatic image developer, and image forming method An electrostatic latent image toner in which the quantity within the toner of alkyl carboxylate esters formed from a carboxylic acid containing from approximately 3 to 5 carbon atoms and an alkyl group containing from approximately 3 to 5 carbon atoms is no more tha... | 10/12/2010 |
| 7754406 | Ultra low melt emulsion aggregation toners having a charge control agent Toner compositions comprising toner particles including an amorphous resin, a crystalline resin and a charge control agent. The toner compositions having the charge control agent exhibit improved charge performance in the C-zone and the A-zone, and improved RH sensi... | 07/13/2010 |
| 7749670 | Toner having crystalline wax Embodiments include a toner with a fractionated and/or distilled wax having from about 30 to about 64 carbon units, a degree of crystallinity as calculated by heat of melting and as measured by DSC of from about 55 to about 100, a Mw is from about 500 to about 800, ... | 07/06/2010 |
| 7732115 | Toners comprising modified pigments and processes for preparing the same The present invention relates to toner compositions comprising a resin and a colorant. Various embodiments of the colorant used in the toner compositions are disclosed, including a modified pigment comprising a pigment having attached at least one organic group havi... | 06/08/2010 |
| 7700253 | Electrophotographic toner An electrophotographic toner is disclosed, comprising a binding resin, a colorant and a releasing agent, wherein the releasing agent comprises a first releasing agent component of a monoester compound represented by formula (1) and a second releasing agent component... | 04/20/2010 |
| 7678522 | Toner, and developer, image forming method, image forming apparatus, and process cartridge using the toner A toner is provided prepared by a wet granulation method, comprising a binder resin and a colorant, wherein the toner adsorbs ammonia (NH3) in an amount of from 70 to 400 μmol/m2 per unit of specific surface area and carbon dioxide (CO2 | 03/16/2010 |
| 7655372 | Toners comprising modified pigments and processes for preparing the same The present invention relates to toner compositions comprising a resin and a colorant. Various embodiments of the colorant used in the toner compositions are disclosed, including a modified pigment comprising a pigment having attached at least one organic group havi... | 02/02/2010 |
| 7645550 | Toner, process for producing toner, and two-component developing agent A toner or two-component developer is provided. The toner includes toner base particles obtained by mixing in an aqueous medium a first resin particle dispersion, a colorant particle dispersion, and a wax particle dispersion, aggregating the mixed dispersion to form... | 01/12/2010 |
| 7622233 | Styrene-based toner compositions with multiple waxes A toner composition includes a styrene-based polymer resin, a crystalline polyester wax, a second wax different from the crystalline polyester wax, a colorant, and a coagulant. ... | 11/24/2009 |
| 7611814 | Polymerized toner having low-temperature fixing ability An object of the present invention is to provide a polymerized toner which has low-temperature fixing ability and is not likely to leak the toner from a developing cartridge, especially, when the toner is used for a high-speed image-forming device. A polymeri... | 11/03/2009 |
| 7604915 | Toner compositions having magenta pigment Use of a charge control agent in a toner, such as a magenta toner, to give an increased triboelectric charge is disclosed. The magenta toner may contain a magenta resin, such as xanthene. The charge control agent is a styrene-acrylate polymer, such as the following ... | 10/20/2009 |
| 7598013 | Electrostatic image developing toner A toner comprising: (i) toner particles, each toner particle comprising a binder resin and a colorant; and (ii) an oxymonocarboxylic acid or a salt thereof, wherein a total content of the oxymonocarboxylic acid or the salt thereof in the toner is 10 to 173 ppm based... | 10/06/2009 |
| 7585605 | Electrostatic latent image developer The invention discloses an electrostatic latent image developer including a toner and a carrier. The carrier has cores and a coating resin including an electrically conductive material on the surface of each of the cores. The coating resin has an inner portion and a... | 09/08/2009 |
| 7572564 | Toner for electrostatic image development, electrostatic image developer and image forming method using the same The present invention relates to a toner for electrostatic image development, comprising a crystalline ester compound synthesized by polymerizing a carboxylic acid component with an alcohol component, a non-crystalline resin, a colorant and a releasing agent, wherei... | 08/11/2009 |
| 7556905 | Electrostatic charge image developing toner Provided is an electrostatic charge image developing toner usable for downsized color image forming apparatus capable of rapid print preparation with neither an influence on production cost nor use of a specific material as the toner constituent material. Also discl... | 07/07/2009 |
| 7541128 | 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... | 06/02/2009 |
| 7541129 | Electrostatic image developing toner An electrostatic image developing toner comprising a binder resin and a colorant, wherein the toner contains a mixture of: (i) a compound represented by Formula (3); and (ii) a compound represented by Formula (1) and/or (2), wherein R1 to R8 ea... | 06/02/2009 |
| 7524601 | Toner and method of manufacturing the toner A toner is disclosed, comprising a resin (A), a colorant (B) and an alkylidenecarboxylic acid (C). ... | 04/28/2009 |
| 7470496 | Electrostatic image developing toner An electrostatic image developing toner comprising a binder resin and a colorant, wherein the toner comprises a compound represented by the following Formula (1): wherein, R1, R2, R3 and R | 12/30/2008 |
| 7442480 | Positively chargeable toner A positively chargeable toner comprising a resin binder, a specified compound represented by the formula (I), and a higher fatty acid with a long-chain alkyl group having 8 to 22 carbon atoms and/or a metal salt thereof. The positively chargeable toner is a positive... | 10/28/2008 |
| 7435519 | Electrophotographic toner and image forming apparatus An electrophotographic toner comprising at least a fixing resin, a coloring agent, a release agent and a charge control agent, wherein the release agent is carnauba wax, the charge control agent is a boron complex of a salicylic acid derivative, and the fixing resin... | 10/14/2008 |
| 7419753 | Toner compositions having resin substantially free of crosslinking, crosslinked resin, polyester resin, and wax A toner composition that includes a resin substantially free of cross linking, a cross linked resin, a polyester resin as a crystalline polyester resin, and a colorant. ... | 09/02/2008 |
| 7413841 | Toner, process for producing the same, two-component developing agent and method of image formation Toner includes aggregated particles including at least resin particles, pigment particles, and wax particles. A fused film of the resin is formed on the surface of the toner. The wax is at least one selected from A: ester wax that has an iodine value of not more tha... | 08/19/2008 |
| 7407732 | Electrophotographic toner An object of the invention is to provide a black toner that can satisfy further the requirement for low energy, high-speed and high performance, a color toner that can be used in an image forming apparatus provided with an oil-less fixation device, and a color toner... | 08/05/2008 |
| 7396630 | 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... | 07/08/2008 |
| 7393620 | Toner composition A toner composition includes toner particles containing a colorant, a binder, a charge control agent, a releasing agent, and an external additive containing silica, silicon carbide, magnesium stearate, and polyvinylidene fluoride. The toner composition of the presen... | 07/01/2008 |
| 7384720 | Toner for developing latent electrostatic image, container having the same, developer using the same, process for developing using the same, image-forming process using the same, image-forming apparatus using the same, and image-forming process cartridge using the same A toner for developing a latent electrostatic image including a base of toner particle which contains a binder resin and a coloring agent, and an external additive. Herein, a plurality of the base of toner particle has a volume average particle diameter (Dv) of 3 μ... | 06/10/2008 |
