| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 430108220 | As a nitrogen- or phosphorus-containing polymer | 42 |
| 20090104555 | TONER, DEVELOPER, AND IMAGE FORMING METHOD - The present invention provides a toner containing at least a binder resin and a pigment, wherein the amount of the pigment in the toner is 3.0% by mass to 8.5% by mass, the volume average particle diameter of the toner is 2.0 μm to 6.0 μm, and a monochrome image, which has been fixed on a recording medium so that the amount of the toner adhered onto the recording medium is 0.25 mg/cm | 04-23-2009 |
| 20090170018 | TONER FOR DEVELOPING LATENT ELECTROSTATIC IMAGE, METHOD FOR PRODUCING THE SAME AND APPARATUS FOR PRODUCING THE SAME, AND DEVELOPER, TONER CONTAINER, PROCESS CARTRIDGE, IMAGE FORMING METHOD AND IMAGE FORMING APPARATUS - There is provided a toner for developing a latent electrostatic image, obtained by a method containing: ejecting a toner composition fluid from an ejection hole so as to make the toner composition fluid into droplets; and solidifying the droplets in an atomizing space so as to form solid particles, wherein the toner composition fluid contains at least a colorant formed by reacting a polymer containing 10 mol % or more of a monomer unit having a sulfonic acid group or a salt thereof, or a monomer unit having a sulfuric acid group or a salt thereof as a constitutional unit, and a basic dye. | 07-02-2009 |
| 20090170019 | TONER FOR DEVELOPING ELECTROSTATIC CHARGE IMAGE, IMAGE FORMING METHOD AND IMAGE FORMING APPARATUS - To provide a toner for developing an electrostatic charge image, the toner containing at least a colorant obtained by reacting a polymer with a basic dye, wherein the polymer contains 10 mol % or more of a monomer unit having any one of a sulfonic acid group, a sulfonic acid salt group, a sulfuric acid group and a sulfuric acid salt group as a constitutional unit, and the toner is obtained by forming a toner composition liquid containing at least the colorant into oil droplets in an aqueous medium, and solidifying the oil droplets into solid particles. | 07-02-2009 |
| 20100015543 | Black Toner and Image Forming Method - A black toner includes: toner mother particles containing carbon black as a colorant and a binder resin, the toner mother particles being surface-modified with a polyalkyleneimine. | 01-21-2010 |
| 20100233610 | POLYMER HAVING A SULFONIC GROUP OR A SULFONATE GROUP AND AN AMIDE GROUP AND METHOD OF PRODUCING SAME - A polymer is provided in which a sulfonic group or a derivative thereof is introduced. The polymer includes a unit represented by the following chemical formula (1): | 09-16-2010 |
| 20100323290 | TONER AND MANUFACTURING METHOD THEREOF - A toner for an electrophotography and its manufacturing method are disclosed. The toner comprises toner particles containing a cross-linked polymer having two-valent crosslinking group represented by Formula (1), | 12-23-2010 |
| 20110039200 | YELLOW TONER - A yellow toner is provided which can form high-quality images and has high offset resistance and excellent charging performance while being a capsule-type toner having excellent low-temperature fixability. The yellow toner satisfies, in DSC measurement, 40.0≦Tg(0.5)≦60.0 and 2.0≦Tg(4.0)−Tg(0.5)≦10.0, wherein when the concentration of the yellow toner in an ethyl acetate dispersion is C | 02-17-2011 |
| 20110045398 | BLACK TONER - A black toner has a toner particle including at least a resin (a) having a polyester as a main component, carbon black, and a wax, and a fine inorganic particle. When the Tgs of the black toner measured by DSC at temperature rise rate of 0.5° C./min and 4.0° C./min are defined as Tg(0.5) and Tg(4.0) respectively, Tg(0.5) is 35.0 to 60.0° C. and the difference between Tg(4.0) and Tg(0.5) is 2.0 to 10.0° C. When preparing a solution of which the black toner is dissolved in ethyl acetate and defined the concentration thereof as Cb1 (mg/mL) and the light absorbance thereof at 600 nm wavelength as A600, A600/Cb1 is less than 0.15. When preparing a solution of which the black toner is dissolved in chloroform and defined the concentration thereof as Cb2 (mg/mL) and the light absorbance thereof at 600 nm wavelength as A600, A600/Cb2 is 2.00 to 6.55. | 02-24-2011 |
| 20110123920 | TONER POROUS PARTICLES CONTAINING HYDROCOLLOIDS - The present invention is toner particle that includes a continuous phase of binder polymer and a second phase of hydrocolloid. The particle has a porosity of at least 10 percent. | 05-26-2011 |
| 20110177447 | TONER, METHOD FOR PRODUCING THE SAME, AND DEVELOPER - The present invention provides a toner containing base particles formed by emulsifying or dispersing, in an aqueous medium, a toner composition liquid which is obtained by dissolving or dispersing, in an organic solvent, at least a binder resin soluble in the organic solvent and a colorant masterbatch containing a colorant and a colorant dispersion resin, wherein the colorant dispersion resin is a resin having sparing solubility defined below: where the “sparing solubility” means that when 4 parts by mass of the colorant dispersion resin are added to and mixed with 10 parts by mass of the organic solvent, the mixture becomes white turbid at 25° C. or becomes a transparent solution once at 25° C. and then becomes white turbid within 12 hours. | 07-21-2011 |
| 20110294059 | TONER AND TONER MANUFACTURING METHOD - Disclosed is a toner comprising at least a binder resin, a colorant and a polyurethane resin, wherein the polyurethane resin is a carboxy-denatured polyurethane resin. | 12-01-2011 |
| 20110294060 | TONER FOR DEVELOPING ELECTROSTATIC CHARGE IMAGE - To provide a toner for developing an electrostatic charge image, which is free from fogging even by means of a high speed and long operating life machine and which brings about no OPC filming or soiling of components. | 12-01-2011 |
| 20120189953 | POSITIVELY CHARGEABLE TONER FOR ELECTROSTATIC IMAGE DEVELOPMENT - Domains of a charge control resin are formed by dispersing a charge control resin containing a quaternary ammonium salt functional group-containing resin of a copolymer of an addition-polymerizable monomer having a quaternary ammonium salt functional group and a styrene and/or acrylic monomer into a polyester resin as binder resin, and the proportion of the number of domains of the charge control resin with a domain diameter of no less than 0.01 μm to less than 0.3 μm versus the number of domains of the charge control resin with a domain diameter of no less than 0.01 μm, which is measured by a predetermined method, is adjusted to no less than 98% by number. | 07-26-2012 |
| 20130130164 | POLYESTER, PIGMENT COMPOSITION, AND TONER - Provided is a pigment dispersant for improving the dispersibility of an azo pigment for a water-insoluble solvent. More specifically, provided is a polyester, including at least one unit represented by one of the following formula (1) and the following formula (2): | 05-23-2013 |
| 20130224644 | BLACK TONER CONTAINING COMPOUND HAVING AZO SKELETON - A toner comprising toner particles, each of which contains a binder resin, a compound in which a polymer portion is bound to an azo skeleton structure are linked, and carbon black. | 08-29-2013 |
| 20130224645 | MAGENTA TONER CONTAINING COMPOUND HAVING AZO SKELETON - A toner comprising toner particles, each of which contains a binder resin, a compound in which a polymer portion is bound to an azo skeleton structure, and a magenta pigment. | 08-29-2013 |
| 20130224646 | CYAN TONER CONTAINING COMPOUND HAVING AZO SKELETON - A cyan toner comprising toner particles, each of which contains a binder resin, a compound in which a polymer portion is bound to an azo skeleton structure, and a phthalocyanine pigment serving as a colorant. | 08-29-2013 |
| 20130224647 | TONER - Provided is a toner manufactured in an aqueous solvent, whereby a satisfactory image density can be obtained and the toner laid-on level on a recording medium can be reduced with a normal added concentration of pigment without adding a large quantity of pigment to the toner. The toner is manufactured in an aqueous medium by the suspension polymerization or dissolution suspension method and contains a binder resin, a pigment and an azo compound. The azo compound is a specific azo compound, and the absolute value of the difference in zeta potential between the binder resin and the azo compound is 25 mV or less. | 08-29-2013 |
| 20130244165 | TONER - A toner is provided that, even in a small amount thereof, gives a satisfactory image density and that is free of image problems, e.g., fogging and offset resistance, even during long-term use and in a high-temperature, high-humidity environment. The toner contains a binder resin, a pigment, and a prescribed azo compound wherein, designating as (A) the solubility of the azo compound in a toluene-hexane solubility test and as (B) the solubility of the binder resin constituting the toner in the toluene-hexane solubility test, the (A) and the (B) satisfy the relationship |(B)−(A)|≦60. | 09-19-2013 |
| 20130295501 | SURFACE MODIFICATION OF PIGMENTS AND COMPOSITIONS COMPRISING THE SAME - Disclosed herein is a method of making a modified pigment, comprising: reacting, under Mitsunobu conditions: (a) a first reactant comprising a protonated nucleophile having a pK | 11-07-2013 |
| 20140011129 | POLYMERIZABLE MONOMER, POLYMERIC COMPOUND, CHARGE CONTROL AGENT CONTAINING THE POLYMERIC COMPOUND, AND DEVELOPER BEARING MEMBER AND TONER WHICH CONTAIN THE CHARGE CONTROL AGENT - A polymerizable monomer is provided which is represented by the following formula (1): | 01-09-2014 |
| 20140106272 | TONER - Provided is a toner having high charging rapidity to reach a sufficient charging amount in a short time, high stability of charging from the initial stage to a time when a large amount of sheets is printed out, and high stability of charging under a high temperature and high humidity. In a toner including toner particles, each of which contains at least a binder resin, a colorant, and a charge controlling resin, the charge controlling resin is a copolymer of a structure A having at least a specific salicylic acid derivative structure and a structure B having sulfonic acid or sulfonic acid ester as a substituent. | 04-17-2014 |
| 20140120466 | ELECTROSTATIC LATENT IMAGE DEVELOPING TONER - An electrostatic latent image developing toner includes toner base particles including a binder resin and an external additive attached to surfaces of the toner base particles. The external additive contains silica covered with a coating layer containing a nitrogen containing resin. | 05-01-2014 |
| 20140255841 | TONER COMPOSITIONS - A toner having charge control agents which impart excellent triboelectric charging characteristics. In embodiments, the toner particles are made by a process in which charge control agent is added and adhered to the particle surface through washing steps and is maintained through the drying steps. The process of the present embodiments impart desirable charging characteristics to the toner particles. | 09-11-2014 |
| 20140295341 | TONER ADDITIVES COMPRISING COMPOSITE PARTICLES - Metal-oxide composite particles are used as a toner additive. | 10-02-2014 |
| 20140342281 | ELECTROSTATIC LATENT IMAGE DEVELOPER - An electrostatic latent image developer of the present invention includes a resin, a colorant and a colorant dispersant, wherein the colorant dispersant contains a first polymer compound containing a constitutional unit derived from a monomer A, a constitutional unit derived from a monomer B and a constitutional unit derived from a monomer C, the monomer A is 4-vinylpyridine, the monomer B is CH | 11-20-2014 |
| 20140356779 | BLACK TONER CONTAINING COMPOUND HAVING AZO SKELETON - Provided is a black toner which has improved dispersibility of carbon black in a binding resin and has a high coloring power. Also provided is a black toner which suppresses fogging and has high transfer efficiency. The toner includes a toner particle containing a binding resin, a compound in which a polymer moiety is bound to an azo skeleton, and carbon black as a coloring agent. | 12-04-2014 |
| 20140377698 | POLYMERIZED TONER AND A METHOD FOR PREPARING THE SAME - This disclosure relates to a polymerized toner prepared by suspension polymerization. Particularly, this disclosure relates to a polymerized toner that further comprises a specific functional macro monomer, a polymer thereof, or a mixture thereof, in addition to a binder resin, and a pigment, a pigment stabilizer, a charge control agent and wax, which are dispersed in the binder resin, and thus can be fixed at low temperature in a development process, and exhibit high glossiness and excellent transfer efficiency. | 12-25-2014 |
| 20150017582 | ELECTROSTATIC LATENT IMAGE DEVELOPING TONER - An electrostatic latent image developing toner includes toner particles each including a toner core and a shell layer. The shell layer contains a resin including a unit derived from a monomer of a thermosetting resin and a unit derived from a thermoplastic resin. The thermosetting resin is one or more resins selected from the group of amino resins consisting of a melamine resin, a urea resin, and a glyoxal resin. When heat and pressure are applied to a toner layer formed on a polyester film under conditions of a temperature of 140° C. and a pressure of 7 MPa so that the toner particles are not superimposed, the toner particles of the toner layer are broken in a manner that a melt of a component of the toner core flows out from a plurality of points in an outer surface of the shell layer. | 01-15-2015 |
| 20150024319 | ABS Part Material for Electrophotography-Based Additive Manufacturing - A part material for printing three-dimensional parts with an electrophotography-based additive manufacturing system, the part material including a composition having a copolymer (including acrylonitrile units, butadiene units, and aromatic units), a charge control agent, and a heat absorber. The part material is provided in a powder form having a controlled particle size, and is configured for use in the electrophotography-based additive manufacturing system having a layer transfusion assembly for printing the three-dimensional parts in a layer-by-layer manner. | 01-22-2015 |
| 20150024320 | ELECTROSTATIC LATENT IMAGE DEVELOPING TONER - An electrostatic latent image developing toner includes toner particles. The toner particles each include a toner core containing a binder resin and a shell layer coating the surface of the toner core. The binder resin contains an ethylene-unsaturated carboxylic acid copolymer. The shell layers contain a unit derived from a monomer of a thermosetting resin. The thermosetting resin is at least one resin selected from the group of amino resins consisting of a melamine resin, a urea resin, and a glyoxal resin. | 01-22-2015 |
| 20150037724 | ELECTROSTATIC LATENT IMAGE DEVELOPING TONER - An electrostatic latent image developing toner of the present disclosure contains a toner particle including a toner core containing a binder resin, and a shell layer coating a surface of the toner core. The shell layer is constituted by a resin containing a thermosetting resin. A zeta potential of the toner core measured in an aqueous medium adjusted to pH 4 is negative, and a zeta potential of the toner particle measured in an aqueous medium adjusted to pH 4 is positive. A pH at which the zeta potential of the toner particle measured in an aqueous medium is zero is 4.5 or higher and 7.0 or lower. | 02-05-2015 |
| 20150056549 | TONER - The present invention is a toner including toner particles prepared by forming particles of a polymerizable monomer composition including a polymerizable monomer, a pigment, a pigment dispersant and a crystalline polyester resin in an aqueous medium, and polymerizing the polymerizable monomer, wherein the polymerizable monomer is a polymerizable monomer for preparing a vinyl copolymer, the difference in an SP value between the pigment dispersant and the crystalline polyester resin is −1.5 to +0.8, the difference in an SP value between the pigment dispersant an the vinyl copolymer is −1.1 to +1.2, the pigment dispersant has a polymer component and an adsorbable component adsorbed to the pigment, the polymer component is a vinyl polymer, the polymer component of the pigment dispersant has a number average molecular weight of 3,000 to 20,000, and a rate of adsorption of the pigment dispersant to the pigment is 30% or more. | 02-26-2015 |
| 20150064618 | BLACK TONER CONTAINING COMPOUND HAVING AZO SKELETON - A toner comprising toner particles, each of which contains a binder resin, a compound in which a polymer portion is bound to an azo skeleton structure are linked, and carbon black. | 03-05-2015 |
| 20150079515 | MAGENTA TONER CONTAINING COMPOUND HAVING AZO SKELETON - A toner comprising toner particles, each of which contains a binder resin, a compound in which a polymer portion is bound to an azo skeleton structure, and a magenta pigment. | 03-19-2015 |
| 20150086918 | ELECTROSTATIC LATENT IMAGE DEVELOPING TONER - An electrostatic latent image developing toner includes toner particles. Each of the toner particles includes a toner core containing a binder resin and a releasing agent, and a shell layer coating the toner core. The releasing agent has a melting point Mp | 03-26-2015 |
| 20150093699 | CYAN TONER CONTAINING COMPOUND HAVING AZO SKELETON - A cyan toner comprising toner particles, each of which contains a binder resin, a compound in which a polymer portion is bound to an azo skeleton structure, and a phthalocyanine pigment serving as a colorant. | 04-02-2015 |
| 20150293465 | POSITIVELY CHARGEABLE ELECTROSTATIC LATENT IMAGE DEVELOPING TONER - A positively chargeable electrostatic latent image developing toner includes a plurality of toner particles each including a toner mother particle and an external additive adhering to a surface of the toner mother particle. The external additive includes metal oxide particles and coat layers that are each disposed over a surface of a corresponding one of the metal oxide particles. The coat layers contain a nitrogen-containing resin. The metal oxide particles contain metal ions having an electronegativity of no greater than 11. | 10-15-2015 |
| 20160070189 | COMPOUND HAVING AZO SKELETON STRUCTURE, PIGMENT-DISPERSING AGENT, PIGMENT COMPOSITION, PIGMENT DISPERSION, AND TONER - The present invention provides a compound capable of improving the dispersibility of yellow, magenta, cyan, and black pigments in a water-insoluble solvent and a pigment-dispersing agent. The present invention also provides a pigment composition, a pigment dispersion, and a toner, which have satisfactory tinting strength. The present invention relates to a compound having a structure in which an azo skeleton structure is bound to a polymer portion via a linking group in the azo skeleton structure. | 03-10-2016 |
| 20160130233 | COMPOUND, DISPERSANT AND TONER - The present invention provides a dispersant excellent in the solubility to a solvent, the adsorption power to a coloring material, and the coloring material dispersibility, and reduced in the self-coloring property, a compound and a polymerizable compound for preparing the dispersant, and a toner using the dispersant. | 05-12-2016 |
| 20160185971 | NOVEL COMPOUND, PIGMENT DISPERSING AGENT, PIGMENT COMPOSITION, PIGMENT DISPERSION AND TONER CONTAINING SAID COMPOUND - Provided is a compound that improves dispersibility of a pigment in a non-water-soluble solvent, and a pigment dispersing agent, a pigment composition, a pigment dispersion and a toner that use that compound. The present invention relates to a compound in which a polymer and a monoazo compound having a specific structure are bonded. The present invention further relates to a pigment dispersing agent, a pigment composition, a pigment dispersion and a toner containing that compound. | 06-30-2016 |
| 20160251465 | POLYMER INCLUDING PHTHALOCYANINE STRUCTURE, METHOD FOR PRODUCING THE POLYMER, PIGMENT COMPOSITION, PIGMENT DISPERSION, AND TONER | 09-01-2016 |
