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8329368 Electrophotographic toner  
An electrophotographic toner is disclosed. The toner contains a compound of Formula X-1 and a copper complex compound represented by the following Formula (1), which are defined detain in the...
8329370 Toner, image forming apparatus, image forming method, and process cartridge  
An image forming apparatus including: a latent electrostatic image bearing member, a charging unit, an exposing unit, a developing unit, a transfer unit, and a fixing unit, wherein the toner...
8323864 Toner to develop an electrostatic latent image and method of preparing the same  
A toner to develop an electrostatic latent image which includes a latex, a colorant, and a release agent, wherein the toner has a complex viscosity (η*) in a range of about 2.5×102 to about...
8318397 Electrophotographic toner and method of preparing the same  
An electrophotographic toner and a method of preparing the same are provided. The electrophotographic toner includes a latex, a colorant, and a releasing agent, wherein the electrophotographic...
8298736 Electrophotographic toner  
Provided is a toner comprising toner particles containing a binder resin and coloring matters, wherein the coloring matters comprise a dye represented by Formula (X-1), a metal compound...
8298741 Image forming apparatus and image forming method  
An image forming apparatus includes plural developing units separately containing a toner A and a toner B that satisfy relationships (1) and (2) and have similar colors. The toner A and the toner...
8293442 Resin particle, toner, and image forming method and process cartridge using the same  
Disclosed is a resin particle having a volume average particle diameter of 10 nm to 500 nm, obtained by polymerizing an addition polymerizable monomer containing a silsesquioxane (a) represented...
8252493 Toner compositions  
Single component toners are provided with at least one surface additive including a large polymeric spacer, and processes for producing the same. In embodiments, the toner is a non-magnetic single...
8227161 Electrophotographic toner and method of preparing the same  
An electrophotographic toner includes a latex, a coloring agent, a wax and 3 to 1,000 ppm of each of Si and Fe, wherein a mole ratio of Si to Fe is from 0.1 to 5.
8227162 Magnetic toner  
To provide a toner excellent in low-temperature fixability, releasing performance, and development stability in long-term use under a high-temperature and high-humidity environment, provided is a...
8227158 Toner for electrostatic image development, toner cartridge, process cartridge and image forming apparatus  
The invention provides a toner for electrostatic image development, containing a toner particle and external additive particles adhered to the surface of the toner particle, each of the external...
8227160 Toner for electrophotography  
A toner for electrophotography comprising a charge control agent comprising a specified iron-azo complex or a specified metal compound of a benzilic acid derivative, a colorant, and a resin binder...
8211605 Toner, developer, toner container, process cartridge, image forming method, and image forming apparatus  
There is provided a toner which contains at least a binder resin, and filler including a layered inorganic compound, wherein the layered inorganic compound is cleaved to form particles in the...
8202676 Toner for developing electrostatic latent image, and image forming method using the toner  
A toner for developing electrostatic latent images, including a binder resin; and a colorant, wherein the toner further includes propyleneglycolmonomethylether in an amount of from 30 to 200 ppm.
8168360 External additive, toner, and image forming apparatus  
To a toner used in an image forming apparatus is added an external additive whose main components are oxide fine particles in which dimethylsilyl groups are introduced to surfaces thereof, and...
8163450 Toner, and image forming apparatus and image forming method using the toner  
A toner including toner particles; and external additives including a fatty acid metal salt having an average primary particle diameter of from 0.5 to 1.5 μm; a positively chargeable particulate...
8142970 Toner compositions  
A toner having a core with a first latex having a specific glass transition temperature, and further having a shell surrounding the core with a second latex having a specific glass transition...
8114560 Toner, image forming apparatus, image forming method, and process cartridge using the toner  
The present invention provides a toner containing at least a binder resin, a releasing agent, and a colorant, wherein the binder resin contains at least a polyester resin (A) having a softening...
8105743 Fine organic silicone particle for latent electrostatic image developing toners, external additive for toners, toner for developing latent electrostatic image, and two-component developer  
The present invention provides an organic silicone fine particle for latent electrostatic image developing toners, wherein the organic silicone fine particle has a volume average particle diameter...
8107863 Developing device and image forming apparatus  
A developing device and an image forming apparatus which can form a printing image having high resolution and a high quality level, while resolving various problems resulted from the use of small...
8088933 Charge control agent and toner comprising the same  
Discussed herein are a charge control agent and toner comprising said charge control agent. Said toner of the invention is comprised of a resin, a colorant, and the charge control agent, wherein,...
8084177 Toners containing polyhedral oligomeric silsesquioxanes  
Disclosed is a toner composition comprising toner particles which comprise a resin, an optional colorant, and a polyhedral oligomeric silsesquioxane compound.
8039186 Toner for developing electrostatic image, developer for developing electrostatic image, and method for forming image  
A toner for developing an electrostatic image comprises: a binder resin; and a releasing agent, wherein the binder resin comprises a polycondensation resin obtained by polycondensing a...
8029959 Charge control agent and toner comprising the same  
Taught herein is a charge control agent comprising a specific type of gallic acid metal complex represented by the following Chemical Formula (1) or Chemical Formula (2): In the formula (1), R1...
8026031 Toner, vessel with the toner, developer, image forming apparatus and process cartridge and image forming method  
Toner and a developer which are excellent in cleaning property and fixing property at low temperature, and capable of forming images with high quality are provided. A toner prepared by dispersing...
8007974 Toner, image forming apparatus using the same, image forming method using the same, and process cartridge  
A toner that is excellent in low-temperature fixing property, offset resistance, storage stability, charge rising property, charge stability with time and pulverizability and allows for forming...
7943280 Toner containing a laminar inorganic mineral in which part or all of the ions present between layers are modified by organic ions  
A toner containing a colorant, a binder resin and a laminar inorganic mineral in which part or all of the ions present between layers are modified by organic ions. The toner can be prepared by a...
7943279 Copper complex compound and electrophotographic toner containing the same  
A copper complex compound represented by Formula (1) is disclosed. in the formula, groups represented by R is a substituent, n is an integer of from 1 to 5 and the total carbon number contained in...
7939237 Nano-sized composites containing polymer modified clays and method for making toner particles using same  
A method for making toners to include clay composites. The clay composites are incorporated into emulsion of toner and used in making toner via emulsion aggregation. Such toners may have a core...
7923189 Hydrophobic salts of layered metal hydroxides  
The invention relates to hydrophobic salts of layer-like metal hydroxides, which are obtainable by adding to a layer-like metal hydroxide salt, which contains trivalent, divalent and optionally...
7892714 Toner particles having nano-sized composites containing polymer modified clays  
A toner comprising toner particles, a polymer binder, at least one colorant and clay composites distributed in the polymer binder, wherein the clay composites comprise a polymer modified clay.
7875412 Positive electrified charge control agent and positive electrified toner for developing electrostatic image  
A positive electrified charge control agent comprising a silicon complex compound of an effective component represented by the following chemical formula (I) and/or chemical formula (II) (in the...
7858281 Acid-base property considerations for improved additive attachment on toner  
A developer comprised of a toner and at least one external surface additive, wherein an acid-base interaction has an Interaction Surface Parameter (ISP) of greater than 0, and wherein ISP is...
7851116 Emulsion aggregation high-gloss toner with calcium addition  
Toner including toner particles having a calcium-containing material at least in a surface portion of the toner particle, wherein the toner particles contain calcium in an amount of from 20 ppm to...
7824831 Toner  
A toner including a binder resin, a colorant, and a release agent is provided. The difference in absorbance ratio between the toner heated for 1 minute in an atmosphere of 100° C. and the toner...
7807326 Printing semiconducting components  
A toner particle for use in electrostatic printing of a semiconducting electronic device, the particle comprising: a resin; and non-organic semiconductor particles dispersed in the resin.
7799498 Toner used for image forming apparatus  
The present invention provides an image forming apparatus capable of stably producing high quality images with time, without causing missing a central part of a thin line, however, with keeping an...
7759039 Toner containing silicate clay particles for improved relative humidity sensitivity  
Toner particles, preferably emulsion aggregation toner particles, have improved relative humidity sensitivity through inclusion therein of silicate clay particles such as kaolin clay. The toner...
7759038 Toner, development unit and image forming apparatus using the same  
Disclosed is a toner containing resin mother particles and oil, in which the volume-average particle diameter of the resin mother particles is not less than 2 μm but less than 4 μm,...
7704660 Developer for electronic printing, and process for producing glass plate having electric conductor pattern  
To provide a process for producing a glass plate having an electric conductor pattern excellent in adhesion to the surface of the glass plate, whereby it is not required to have a screen ready for...
7632618 Polyhydroxyalkanoate-containing structure and manufacturing method thereof  
A method for manufacturing polyhydroxyalkanoate-containing structure, at least a part of a base material surface of the structure being coated with polyhydroxyalkanoate, the method comprises the...
7611813 Toner and image forming method  
Provided a toner including at least: toner particles each containing at least a binder resin, a release agent, and a colorant; and an inorganic fine powder, in which: a degree of aggregation Y1 at...
7611815 External additive for toner for electrophotography, toner for electrophotography, double-component developer for electrophotography, image-forming process using the toner, and image-forming apparatus using the toner  
An external additive for a toner for electrophotography which contains oxide fine particles which contain silicon, in which the oxide fine particles have a primary particle diameter of 30 nm to...
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...
7592114 Color toner for non-magnetic mono-component system for increasing printing quality and a method for preparing the same  
The present invention relates to a color toner for a nonmagnetic mono-component printing system that improves the printing characteristics, and a preparation method thereof. More specifically, the...
7582787 Charge control agent, manufacturing process thereof, charge control resin particles and toner for developing electrostatic images  
Charge control agent whose active ingredient is a zinc compound of an alkylsalicylic acid derivative, the compound being a zincified alkylsalicylic acid derivative which is an alkylphenol...
7572563 Toner for electrostatic image development  
A toner for electrostatic image development containing a resin binder, a charge control agent, and a colorant, and wherein the charge control agent contains a metal complex of a salicylic acid...
7569318 Use of salts of layered double hydoxides  
A layered double hydroxide salt as a charge control agent in electrophotographic toners and developers, in powder coating materials, electret materials and in electrostatic separation processes of...
7553595 Toner compositions and processes  
A toner composition includes toner particles including a polymeric resin, a colorant, a wax, and an optional coagulant, and a coagulant applied as a surface additive to a surface of the toner...
7537875 Toner  
In a toner having toner particles which comprise toner base particles containing at least a colorant, a release agent and a polar resin, and an inorganic fine powder, the polar resin is a resin...