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8178273 |
Carrier and manufacturing method thereof, developer, process cartridge, image forming apparatus, and image forming method
To provide (1) a method for manufacturing a carrier, including: dissolving a coating material composed of a plurality of types of materials in a fluid containing at least one of a supercritical...
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8142971 |
Electrostatic charge developer, electrostatic charge image developer cartridge, process cartridge, and image forming apparatus
An electrostatic charge developer includes a carrier having a core material and a resin coating layer covering the surface of the core material, and a toner having a binder resin that contains a...
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8114562 |
Two-component developer, replenishing developer, and image-forming method
A two-component developer containing a yellow toner and a magnetic carrier, wherein the yellow toner has the characteristics: (i) when the concentration of the yellow toner in a solution of the...
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8067136 |
Charge control agent, toner, image forming method, and image forming apparatus
To provide: a charge control agent having negative chargeability, which contributes to environmental conservation and the like to an increased degree, has high performance (high charge amount,...
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8062822 |
Carrier for electrostatic latent image development and electrostatic latent image developer
An electrostatic latent image developing carrier is provided which comprises a core particle and a resin coating layer containing conductive particles dispersed therein, the carrier having a volume...
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8053073 |
Process for producing resin-coated metal particles, resin-coated metal particles, and toner for forming circuit
A process for producing resin-coated metal particles includes coating surfaces of metal particles with silica; allowing a polymerizable group to adsorb onto the surfaces of the silica-coated...
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8043785 |
Carrier, method for producing the same, developer, and image forming method
The present invention provides a method for producing a carrier that includes dissolving at least a coating material in carbon dioxide in a liquid state, and forming a coating layer on a core...
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8039184 |
Two-component developer
Provided is a two-component developer with which degradation of development is inhibited even in the case of prolonged use, and thereby a high quality image exhibiting high resolution and...
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8039189 |
Electrophotographic developer and carrier therefor, core material particle for carrier for electrophotographic developer and production method thereof and image forming method
The present invention can provide small-diameter core material particles for electro photographic carrier, the particles that can prevent occurrences of carrier adhesions and reduce toner spent,...
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8026032 |
Carrier, supplemental developer, developer in image developer, developer feeding apparatus, image forming apparatus and process cartridge
A carrier for use in an image forming apparatus in which a toner and a carrier are fed to an image developer thereof and an extra developer including the toner and the carrier in the image...
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7981582 |
Toner and developer compositions with a specific resistivity
A toner having a crystalline or semi-crystalline polyester resin, an amorphous resin and a colorant. The toner preferably exhibits a resistivity of at least 1×1011 ohm-cm. A developer may be ...
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7964330 |
Electrophotographic resin-coated ferrite carrier, method for producing the same, and electrophotographic developer
There are adopted an electrophotographic resin-coated ferrite carrier having a carrier core coated with a resin, wherein a product of an apparent density ρ (g/cm3), average particle size d (μm) a...
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7939233 |
Magnetic carrier and two-component developer
A magnetic carrier and a two-component developer are provided which have remedied blank areas, fog after leaving, carrier sticking during running, and image density variations before and after...
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7939234 |
Carrier for electrostatic image development, and image formation method and apparatus
An image forming apparatus, including a latent image-holding member, a developing unit, a transfer unit, a cleaning unit, and a recycling unit, wherein the developer includes a toner having an...
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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)...
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7927775 |
Magnetic carrier and two component developer
Provided is a magnetic carrier giving a high quality image free of density variation without the occurrence of fogging or carrier adhesion and having excellent dot reproducibility even during...
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7914964 |
Both-sided image forming method
An image forming method of forming images on both sides of a recording sheet; comprising the steps of: fixing a first toner image on a first surface a recording sheet; and fixing a second toner...
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7906262 |
Two-component developer, replenishing developer, and image-forming method
A two-component developer containing a cyan toner and a magnetic carrier, wherein the cyan toner has the characteristics: (i) when the concentration of the cyan toner in a solution of the cyan...
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7867683 |
Toner, method of producing the same, developer, and image forming apparatus
A toner that when the complex elastic modulus measured at an angular frequency of 6.28 rad/sec., and a strain amount of 0.3% is 1×106 Pa or more and 1×108 Pa or less, the tangent loss is 0.5 or m...
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7862977 |
Image forming method using trickle developing system, developer used for the same, manufacturing method thereof, and image forming apparatus
A method to form an image using a trickle developing system, wherein (a) the toner comprises colorant particles with a volume median diameter of 3 to 8 μm having first inorganic particles on ...
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7858283 |
Magnetic carrier and two-component developer
A magnetic carrier which has magnetic carrier particles each having at least porous magnetic core particles and a resin, in which, in a backscattered electron image of the magnetic carrier...
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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...
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7759040 |
Image forming method
A cleaner-less image forming method includes forming an electrostatic latent image on a electrostatic latent image carrying member; developing the electrostatic latent image with a developer...
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7687216 |
Two-component developer and two-component developing apparatus using the same
A two-component developer is provided in which the reduction of the hot offset occurrence temperature due to detachment of the coating layer, image density insufficiency, image fogging and toner...
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7682764 |
Resin coated carrier for electrophotography and two-component developer for electrophotography made therefrom
A resin coated carrier for electrophotography and a two-component developer for electrophotography made therefrom, in which electrostatic charge giving ability to toner is high, anti-spent property...
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7632620 |
Coated carrier
A carrier comprised of a core, and thereover a polymer coating containing a first polymer and a silicone resin, and which resin possesses an average diameter of from about 300 to about 3,000...
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7622235 |
Carrier compositions
Coated carrier particles are provided for use in developer compositions for electrophotographic imaging. The coated carrier particles include a carrier core and a resin coating that includes first...
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7601475 |
Carrier and developing agent for electrophotography
A two-component developing agent containing a carrier which can maintain a charge-imparting property to a toner at a high level for a long period of time, does not generate flying of the carrier...
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7595138 |
Toner, two-component developer, and image forming method
A toner of the present invention is a toner comprising an additive and a toner matrix that contains a binder resin, a colorant, and a wax, in which the additive contains an inorganic micropowder to...
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7592116 |
Indium-containing carrier for electrophotography, developer using the same, and developer container
The object of the present invention is to provide a carrier for electrophotography which includes a core material and a coating layer comprising particles on a surface of the core material, in...
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7592115 |
Carrier for electrostatic latent image developer, production method thereof, electrostatic latent image developer, and image-forming device
A carrier for electrostatic latent image developer, including a core material and at least two or more resin-coated layers formed on the surface of the core material, wherein the resin-coated...
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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...
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7570904 |
Image forming apparatus
In the image forming apparatus by: visualizing an electrostatic latent image formed on an electrostatic charge carrying member; transferring a toner image, which is thus visualized, to a recording...
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7566519 |
Carrier for electrophotographic developer, and electrophotographic developer using the same
A carrier for an electrophotographic developer which is used as an electrophotographic developer in a mixture with a toner and which secures sufficiently the image density and can maintain...
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7553598 |
Electrophotographic carrier, developer, developer container, process cartridge, image forming apparatus and image forming method
A carrier contains a core; and a cover layer located overlying the core, wherein the cover layer comprises a binder resin, a first particulate material and a second particulate material, wherein...
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7553597 |
Carrier core material, coated carrier, and two-component developing agent for electrophotography
A carrier core material containing at least one metal oxide (MLO) having a melting point of not higher than 1000° C. and at least one metal oxide (MHO) having a melting point of not lower than ...
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7510813 |
Resin-coated carrier for electrophotographic developer
To provide a resin-coated carrier for an electrophotographic developer capable of providing an image with excellent image quality; and a two-component developer and a replenishing developer each of...
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7476483 |
Carrier for electrophotographic developer and two-component electrophotographic developer
A carrier for electrophotographic developer comprises a resin carrier core comprising a binder resin and magnetic powder dispersed in the binder resin, and a coating layer comprising a coating...
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7470497 |
Two-component developer having a resin coated carrier for electrophotography and toner
The present invention is a carrier for electrophotography in which a surface of at least a core material is coated with a resin, in which the coating resin contains a fluorine modified silicone...
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7468233 |
Developer for use in electrophotography, image forming method and process cartridge
Electro-photographic images having high picture quality and low carrier adhesion can be obtained using a two-component developer containing a carrier containing (A) a carrier containing a core...
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7455945 |
Coated carrier and two-component developing agent
A carrier excellent in durability and environmental stability and a two-component developing agent is provided. In the carrier, a core material is coated with a resin, and the coating resin is...
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7455946 |
Two component developing agent
A two-component developing agent retained on the periphery surface of a magnetic roller 11 and a development roller 12 are brought in contact with each other, the nonmagnetic toner in the...
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7452650 |
Coated carriers and processes thereof
A carrier comprised of a core and a polymer generated from a mixture of two latexes, and wherein the first latex enables a polymer with a high molecular weight, and the second latex enables a...
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7432031 |
Toner for electrostatic charge developing, production method thereof, developer for electrostatic charge developing using the same, and image forming method
A toner for electrostatic charge developing prepared by a production method including aggregating one or more kind of particles in a raw material dispersion including the particles to form...
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7419755 |
Carrier composition
Carrier particles comprise a core and a polymer coating that comprises a mixture of polymethyl methacrlyate (PMMA) and melamine. The coating compositions comprise from about 60 to about 80 percent...
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7399568 |
Carrier for electrophotographic developer
There is provided a resin-coated carrier with a coating layer attached to the surface of a core material in a stable manner, the electrophotographic carrier which can provide an image with...
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7393622 |
Two-component developing agent for electrophotography
A durable two-component developing agent for electrophotography is provided that can not only suppress scattering of a toner into an inside of an apparatus but also obtain a high image density and...
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7384719 |
Carrier, developer including the carrier, and image forming apparatus using the developer
A carrier composition, including a particulate magnetic material; and a layer located on a surface of the particulate magnetic material, wherein the layer is formed by heating a mixture containing...
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7381513 |
Carrier, developer, image forming method and process cartridge for electrostatic image development
A carrier containing a core material and a resin coating layer located overlying the surface of the core material. The resin coating layer contains resin and electroconductive particles having an...
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7374849 |
Coated carrier
A carrier comprised of a core, and thereover a polymer coating containing antimony tin oxide with an average diameter of from about 5 to about 90 nanometers.
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