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| Number | Title | Issue Date |
| 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 sufficient image density can be formed for a long duration. Also disclosed is ... | 10/18/2011 |
| 7374847 | Toner and developer for developing electrostatic image and image forming method A toner for developing an electrostatic image is disclosed. The toner contains an amount of not less than 0.1% by weight of an element selected from elements of the Groups of 1B, 2B, 4B, 5B, 6B, 7B, 8, 3A and 4A of the fourth and fifth periodic of the long periodic ... | 05/20/2008 |
| 7327974 | Electrophotographic toner and image-forming system An electrophotographic toner for visualizing an electrostatic latent image formed by an electrophotographic process, an electrostatic printing process, an electrostatic recording process, etc., which is produced in consideration of the environment and safety. The el... | 02/05/2008 |
| 7323282 | Dry toner, method for producing dry toner, and method for forming an image The toner having a significantly improved dispersibility of a colorant in toner particles is provided. The present invention provides a dry toner comprising: (i) a binder resin; (ii) a colorant; (iii) at least one of metallophthalocyanine and a metallophthalocyanine... | 01/29/2008 |
| 7318989 | Toner, developer, toner container, process cartridge, image forming apparatus, and image forming method To provide a toner that can provide long-term removability and high-definition images with reduced image layer thickness and densely-packed toner particles, a developer capable of forming high-quality images using the toner, a toner container for containing the tone... | 01/15/2008 |
| 7311953 | Colored composition for color filter and display using color filters formed of the colored composition An object of the present invention is to obtain color filters having a high contrast, a high color purity and an improved transmittance for blue color, and a display using the color filters. In the present invention, there is used a colored composition for color fil... | 12/25/2007 |
| 7309558 | Use of salt-like structured silicas as charge control agents The present invention relates to the use of salt-like structured silicates, in which the cation is NH4+, H3O+, an alkali metal, alkaline earth metal, earth metal or transition metal ion or a low molecular weight organic ca... | 12/18/2007 |
| 7310484 | Apparatus for forming visible black and white or color images and invisible images The image forming apparatus of the present invention includes a cyan color image formation unit which uses a cyan color toner to form a cyan color image; a magenta color image formation unit which uses a magenta color toner to form a magenta color image; a yellow co... | 12/18/2007 |
| 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 |
| 7294183 | Activating agents for use with reactive colorants in inkjet printing of textiles An inkjet ink having an increased shelf life. The inkjet ink comprises an ink vehicle and a reactive colorant. The reactive colorant is nonreactive with water,thereby increasing the shelf life of the inkjet ink to greater than approximately twelve months. An inkjet ... | 11/13/2007 |
| 7288357 | Cyan toner and method of producing cyan toner A cyan toner is provided which is brighter and more greenish in hue than conventional cyan toners and highly translucency. A cyan toner characterized by comprising toner particles at least having a coloring compound represented by the Formula (1): ... | 10/30/2007 |
| 7288353 | Toner, developer, image developer and image forming apparatus A toner including toner particles including a binder resin, a colorant, and an inorganic particulate material present on a surface of the toner particles. The toner particles have a surface roughness (Ra) of from 1 to 30 nm, a standard deviation of the surface rough... | 10/30/2007 |
| 7264910 | Cyan toner and method of producing cyan toner A cyan toner is provided which is brighter and more greenish in hue than conventional cyan toners and highly translucency. A cyan toner characterized by comprising toner particles at least having a coloring compound represented by the Formula (1): ... | 09/04/2007 |
| 7262262 | Resin composition for toner and toner The present invention has for its object to provide a resin composition for toner exhibiting excellent low temperature fixation performance, high temperature offset-resistance and anti-blocking performance and enabling a satisfactory color development, as well as a ... | 08/28/2007 |
| 7252885 | Surface contacting member for toner fusing system and process, composition for member surface layer, and process for preparing composition A surface contacting member for toner fusing systems and processes. This surface contacting member has a fluoroelastomer surface layer containing amorphous silica that has been surface treated with at least one organoaminosilane. ... | 08/07/2007 |
| 7252917 | Dry toner, method for producing dry toner, and method for forming an image The toner having a significantly improved dispersibility of a colorant in toner particles is provided. The present invention provides a dry toner comprising: (i) a binder resin; (ii) a colorant; (iii) at least one of metallophthalocyanine and a metallophthalocyanine... | 08/07/2007 |
| 7232632 | Color toners and image forming method using the color toners A method for forming a full color image including: forming at least yellow, magenta and cyan color toner images on a receiving material to form a full color image thereon; and fixing the full color image upon application of heat thereto while not contacting the full... | 06/19/2007 |
| 7229735 | Toner compositions A toner composition for use in a xerographic or electrostatographic imaging process. The toner composition includes a toner particle and an optional primary external surface additive and a friable external surface additive. The friable external surface additive may ... | 06/12/2007 |
| 7229727 | 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 ran... | 06/12/2007 |
| 7211615 | Polyamide powder with long-lasting, consistently good flowability A composition containing from 88 to 99.99% by weight of a polyamide, a compound of a polyamide and mixtures of these, and from 0.01 to 0.25% by weight of a flow aid where the drying loss from the flow aid after 5 days of conditioning at a relative humidity of 95% is... | 05/01/2007 |
| 7169526 | Toner for the development of electrostatic image and the production process thereof A toner for the development of an electrostatic image is provided wherein at least one layer of a particulate resin is coated onto a substantial portion of the surface of an agglomerate of particles made from at least primary polymer particles and primary colorant p... | 01/30/2007 |
| 7163773 | Toner for developing electrostatic image, developer, process for forming image, and image forming apparatus Spherical toners having excellent fusibility are disclosed. The toners are fusible at low temperatures and are excellent in preservability and therefore charge properties, flowability, and transferability do not deteriorate. The toners contain a colorant and a nitro... | 01/16/2007 |
| 7138214 | Positively chargeable toner A positively chargeable toner, comprising: toner particles that are formed by allowing resin particles containing an amino-group and colorant particles to aggregate, the toner having an amine value in a range of 5 ... | 11/21/2006 |
| 7115349 | Toner Provided is toner which is excellent in developing property, transferring property, and fixing property, hardly affected by its surrounding, and has good endurance. The toner has a peak temperature of maximum endothermic peak in the range of 60 to 100° C. in an end... | 10/03/2006 |
| 7083887 | Color toner and image forming apparatus using the color toner This invention provides: a color toner to be fixed on a recording medium with a flash light comprising a binder resin, an infrared ray absorbent and a coloring agent for mainly developing a yellow color, wherein the coloring agent is C.I. Pigment Yellow 180 or C.I. ... | 08/01/2006 |
| 7083888 | External additive for electrostatically charged image developing toner An external additive for electrostatically charged image developing toner is provided. The additive includes spherical hydrophobic fine silica particles having primary particles with a particle diameter of from 0.01 to 5 μm and having been treated with a compound s... | 08/01/2006 |
| 7022752 | Composite particles, process for producing the same, and pigment, paint and resin composition using the same Composite particles having an average particle diameter of 0.001 to 10.0 μm, comprise: white inorganic particles as core particles; a gluing agent coating layer formed on surface of the white inorganic particle; a... | 04/04/2006 |
| 7005223 | 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... | 02/28/2006 |
| 6929893 | Electrostatic image dry toner composition, developer for developing electrostatic latent image and image forming method An electrostatic image dry toner composition comprising a binding resin, a colorant, a releasing agent, and two or more kinds of inorganic oxide powders having different volume average primary particle diameters. A surface of at least one kind of the inorganic oxide... | 08/16/2005 |
| 6620568 | Flash fixing color toner and image forming process using the same The present invention discloses a flash fixing color toner for use in an image forming process, which comprises a binder resin, a coloring agent, and an infrared absorbent, wherein negative ions form part of the infrared absorbent, and the negative ions i... | 09/16/2003 |
| 6593050 | Flash fixing color toner A flash fixing color toner for use in an image forming process includes a binder resin and a hue-altering coloring agent, wherein the hue-altering coloring agent alters, at a time of irradiation of flash light, an initial hue of the color toner into a sec... | 07/15/2003 |
| 6544710 | Reactive compatibilization of polymeric components such as siloxane polymers with toner resins A toner composition comprising a primary resin and at least one additional polymeric component is improved by reactive compatibilization of the additional polymeric component and the resin. For example, effective amounts of a functional secondary resin an... | 04/08/2003 |
| 6534230 | Toner formulations A dry, powder electrostatic toner having polyester resin as a binder, pigment as a colorant, charge control ingredients polyethylene wax as a release agent, and extra particulate elements to improve flow and to scrub the doctor blade, one extra particular... | 03/18/2003 |
| 6391507 | Cyan pigments in electrophotographic toners and developers The present invention relates to the use of a CuPc composition consisting essentially of CuPc, e.g., C.I. Pigment Blue 15:3, and a hydroxymethylphthalimido CuPc, as a colorant in electrophotographic toners and developers, powders and powder coating materi... | 05/21/2002 |
| 6379856 | Toner compositions A toner composition comprised of binder, colorant, and a surface additive of a coated silica and wherein said silica possesses a BET surface area, in m2 /g of from about 35 to about 65, a bulk density, in grams/liter, of from about 40 to about ... | 04/30/2002 |
| 6368399 | Composite pigments, coloring compositions, and image recording substances A composite pigment of a bluish green color comprises copper phthalocyanine and aluminum phthalocyanine which are preferably in the form of a mixture or solid solution. The composite pigment can be produced by mixing copper phthalocyanine and aluminum pht... | 04/09/2002 |
| 6350552 | Reactive compatibilization of polymeric components such as siloxane polymers with toner resins A toner composition comprising a primary resin and at least one additional polymeric component is improved by reactive compatibilization of the additional polymeric component and the resin. For example, effective amounts of a functional secondary resin an... | 02/26/2002 |
| 6319647 | Toner and developer for magnetic brush development system A toner of toner particles containing at least one binder, at least one colorant, and preferably one or more external additives is advantageously formed into a developer and used in a magnetic brush development system to achieve consistent, high quality c... | 11/20/2001 |
| 6265126 | Hydrophobic metal oxide powder and application thereof A hydrophobic metal oxide powder obtained by simultaneously surface-treating a powder of a metal oxide (for example, silica, titania, alumina, or the like) with silicone oil having epoxy groups and a non-polymeric amine compound having a lower number of p... | 07/24/2001 |
| 6120962 | Organic silicone quaternary ammonium salt, producing method thereof, and toner and dry-type developer using the same for developing latent electrostatic images A toner for developing latent electrostatic images has toner particles which contain a resin, a coloring agent, and an organic silicone quaternary ammonium salt of formula (1): [R1 R2 Si(CH2 CH2 CH2 NMe | 09/19/2000 |
