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| Number | Title | Issue Date |
| 8057978 | Toner for electrophotography An electrophotographic toner is disclosed, meeting the requirement that G′ (60)/G′ (80) is from 1×102 to 1×104, where G′ (60) G′ (80) are each a storage modulus of the toner at 60° C. and 80° C., respectively; G′ (100)/G′ (130) ... | 11/15/2011 |
| 8034523 | Full color toner, and its use in electrophotography methods and apparatus A full color toner containing a binder resin, a release agent and a colorant is provided, wherein the binder resin contains a polyester resin containing a hybrid resin containing one or more vinyl group polymer units and one or more polyester units, and wherein the ... | 10/11/2011 |
| 7985523 | Toners containing polyhedral oligomeric silsesquioxanes Disclosed is a toner composition comprising toner particles which comprise (a) a resin having chemically bonded thereto a polyhedral oligomeric silsesquioxane, (b) and an optional colorant. ... | 07/26/2011 |
| 7972757 | Resin for electrostatic-image-developing toner, electrostatic-image-developing toner, electrostatic image developer, method for forming image, and image-forming apparatus A resin for an electrostatic-image-developing toner includes a graft polymer, wherein the graft polymer has a polyester structure in the main chain thereof; the graft polymer includes monomer units derived from vinyl monomers in the side chains thereof; and at least... | 07/05/2011 |
| 7968266 | Toner compositions Toner compositions comprising low-melt toner particles and methods of preparing such toner compositions are provided. The toner particles include a polyester-containing binder, a colorant and an optional wax. The binder includes at least one crystalline polyester re... | 06/28/2011 |
| 7901859 | Chemical toner with covalently bonded release agent A chemical toner composition including a polymer polymerized from starting ingredients comprising a resin monomer and a release agent monomer. ... | 03/08/2011 |
| 7897316 | Toner having hybrid binder resin with polyester unit and vinyl copolymer unit Provided is a toner including at least: a binder resin; and a colorant, in which: the binder resin contains at least a polyester unit and a vinyl copolymer unit; a main peak MpA is present in the molecular weight region of 2,000 to 7,000 in a molecular weight distri... | 03/01/2011 |
| 7892715 | Color toner having inorganic pigment particles, glass frit, and heat decomposable binder for making a ceramic color print A color toner for electro printing, which comprises from 10 to 50 parts by mass of fine inorganic pigment particles, from 5 to 40 parts by mass of a heat decomposable binder resin having an acid value of at least 5, and from 40 to 85 parts by mass of glass frit, per... | 02/22/2011 |
| 7887982 | Bio-based toner A series of resins were synthesized using a range of bio-based materials to control the molecular architecture, and therefore the properties, of the inventive resins. The resins were formulated into toner formulations such as those useful in printers and copiers. | 02/15/2011 |
| 7838194 | Toner for developing electrostatic image A toner for developing an electrostatic image is disclosed. The toner has softening point Tsp of from 90° C. to 110° C., and the toner satisfies the relation of 0.02≦(Sw/S)×100≦10, Sw being an area of a wax domain having largest diameter among wax domains at ... | 11/23/2010 |
| 7754407 | Toner for developing electrostatic charge images A toner for developing electrostatic charge images in which offset phenomenon and winding phenomenon do not occur in a wide temperature range, even if the binding resin contains the alicyclic olefinic resin, that is, a toner for developing electrostatic charge image... | 07/13/2010 |
| 7700254 | Toner with specified amounts of the THF-soluble matter having certain intrinsic viscosity The present invention aims to provide a toner having excellent developability and excellent low-temperature fixability without causing adhesion of ejected sheets even in a high-speed oilless fixing system and capable of preventing a frameless printing from causing a... | 04/20/2010 |
| 7687215 | Toner additives The presently disclosed embodiments relate in general to toners for use in electrophotographic apparatuses, such as printers and copiers. More particularly, a toner formulation of at least one binder, at least one colorant, and an embrittling agent, and methods for ... | 03/30/2010 |
| 7645552 | Toner compositions Toner compositions include a non cross linked resin; a cross linked resin or gel; a wax; and a colorant. Processes for preparing a toner include mixing a non-cross linked resin and a cross-linked resin or gel in the presence of a wax, a colorant, and a coagulant to ... | 01/12/2010 |
| 7642031 | Electrophotographic toner and electrophotographic developer and image forming method An electrophotographic toner that includes a colorant, a release agent, a non-crystalline resin and a crystalline resin, wherein the crystalline resin is a polyalkyl acrylate or polyalkyl methacrylate having an alkyl group of approximately 18 or more carbon atoms, a... | 01/05/2010 |
| 7642030 | Toner, manufacturing method thereof and image forming method A toner including toner particles each containing a resin and a colorant, wherein the toner particle has: a region A which contains the colorant and a region B through which more electrons can pass than the region A; and the region A is cov... | 01/05/2010 |
| 7638251 | Toner The invention provides a toner which is excellent in its low-temperature fixing property and high-temperature offset resistance regardless of the types of paper, and constantly provides high-quality images regardless of environments and does not generate image defec... | 12/29/2009 |
| 7622234 | Emulsion/aggregation based toners containing a novel latex resin A toner is disclosed that includes a toner binder of a styrene/acrylate resin containing carboxylic acid substituents and epoxy substituents, and optionally a colorant and/or wax. The carboxylic acid substituents act as a curing agent and react with the epoxy substi... | 11/24/2009 |
| 7582401 | Toner with hybrid binder resin The invention is to provide a toner excellent in fixing property, high-temperature offset resistance and blocking resistance, and having an excellent developing property. The invention provides a toner including at least a binder resin and a colorant, wherein: the b... | 09/01/2009 |
| 7517627 | Toner, image forming method and process-cartridge A toner formed of at least a binder resin, a colorant, a charge control agent and a wax, is provided with a uniform state of dispersion of the wax and good balance of low-temperature fixability and anti-high-temperature offset characteristic, while exhibiting good d... | 04/14/2009 |
| 7491481 | Method of manufacturing toner, toner, and image forming method A method of manufacturing a toner comprising the steps of: (i) forming oil droplets in an aqueous medium comprising a surfactant having a long chain hydrocarbon group and an acid group, the oil droplets comprising: (i-a) a polycarboxylic acid having two or more carb... | 02/17/2009 |
| 7482105 | Toner for electrostatic latent image development and manufacturing method of the toner for electrostatic latent image development A toner for electrostatic latent image development contains a toner particle having a median diameter (d50) in number standard of 2.5 μm to 7.5 μm, acrylate of less than 12 ppm and aliphatic alcohol of 4 to 12 carbons of 40 ppm to 300 ppm. ... | 01/27/2009 |
| 7459253 | Toner and method of producing toner A toner is provided which is excellent in low-temperature fixability and offset resistance, has a wide fixing temperature range, provides fixed images with high gloss, and can form toner images having high quality. The toner is composed of toner particles having ton... | 12/02/2008 |
| 7455944 | Toner for developing electrostatic latent images and manufacturing method thereof, developer for developing electrostatic latent images, image forming method, and method for manufacturing dispersion of resin particles The present invention provides a toner for developing electrostatic latent images, including resin particles containing a crystalline polymer and an amorphous polymer, wherein the amorphous polymer and the crystalline polymer satisfy the relationship represented by ... | 11/25/2008 |
| 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 |
| 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 |
| 7396627 | Method of preparing a toner, developer including the toner, container containing the toner, and image forming method and process cartridge using the toner A method including contacting a toner including: a binder resin including an unsaturated carboxylic acid derivative monomer; a vinyl polymerizing monomer; and a colorant; to a supe... | 07/08/2008 |
| 7385002 | Process for preparing resin binder for toner The present invention relates to a process for preparing a resin binder for toner, comprising the steps of (A) carrying out an addition polymerization reaction of addition polymerization resin monomers including styrene in the presence or absence of an organic solve... | 06/10/2008 |
| 7378206 | Non-magnetic monocomponent positive toner composition having superior transfer efficiency The present invention relates to a non-magnetic mono-component toner composition, which comprises a) a non-magnetic toner particle comprising a binding resin comprising a binder resin and a copolymer of a cyclic olefin and an acyclic olefin polymerized in the presen... | 05/27/2008 |
| 7378209 | Toner for electrophotography and method for forming image using the same An electrophotographic toner used for an image forming method that utilizes a heat-pressure type fuser equipped with a fusing member having a surface layer containing polybenzimidazole, wherein the toner comprises at least cycloolefin copolymer resins as binder resi... | 05/27/2008 |
| 7364827 | Electrophotographic toner An electrophotographic toner comprising a resin, a colorant and a release agent which comprises a first wax and a second wax, wherein: (i) the first wax exhibits: an endothermic peak appearing in the range 75-100° C., a peak width at half height of the endothermic ... | 04/29/2008 |
| 7364826 | Electrostatic latent image developing toner, and method for manufacturing electrostatic latent image developer and electrostatic latent image developing toner There is provided an electrostatic latent image developing toner including a binder resin, a colorant, and a release agent, wherein the shape factor SF1 of the toner is within the range from 110 to 140, the volume average particle size of the toner is within the ran... | 04/29/2008 |
| 7361441 | Color toner, and full-color image-forming method A yellow toner in which, in a spectral-distribution diagram in which the reflectance (%) is plotted as ordinate and the wavelength (nm) as abscissa, the reflectance determined for a toner in a state of powder ranges from 15% to 20% at a wavelength of 500 nm and rang... | 04/22/2008 |
| 7358020 | Image forming apparatus and image forming method An image forming apparatus for enabling an image forming which is stable for a long time, by using a charging method in which the amount of generated ozone or nitrogen oxides is reduced and consumed electric power is low. An image forming method includes: a charging... | 04/15/2008 |
| 7351509 | Toner A toner is disclosed including toner particles containing a binder resin and a colorant. The binder resin contains a vinyl resin. In the high-temperature GPC-RALLS-viscometer analysis of the o-dichlorobenzene-soluble matter of the toner, a weight-average molecular w... | 04/01/2008 |
| 7344815 | Toner for forming electrostatic image A toner for developing an electrostatic image is disclosed. The arithmetic average of shape coefficient SF-1 of the toner particles calculated by Equation 1 is from 125 to 170 and a ratio of that to an arithmetic average of the shape coefficient SF-2 of the toner pa... | 03/18/2008 |
| 7340202 | Image forming apparatus and process cartridge for use therewith An image forming apparatus and process cartridge that achieves extended operating life of a two-component developer without generating such problems as toner scattering, etc. either in the initial period or over time. The gap between the image support member and the... | 03/04/2008 |
| 7335453 | Toner compositions and processes for making same A toner composition is provider including a branched amorphous polyester resin and a crystalline polyester resin, wherein the toner possesses rheological properties yielding desired characteristics. ... | 02/26/2008 |
| 7320850 | Magenta toner A magenta toner is provided which contains at least a binder resin, a colorant, and a wax, in which a maximum heat-absorption peak temperature as measured using a differential scanning calorimeter, a reflectance at a predetermined wavelength when measured in a powde... | 01/22/2008 |
| 7318988 | Dry toners comprising amphipathic copolymeric binder having non-sorptive components in the shell portion thereof The invention provides dry electrographic toner compositions comprising toner particles. The toner particles comprise polymeric binder comprising at least one amphipathic copolymer comprising one or more S material portions and one or more D material portions prepar... | 01/15/2008 |
