| Patent application number | Description | Published |
| 20080199798 | Electrostatic image developing toner, method for producing same, electrostatic image developer, image forming method and image forming apparatus - An electrostatic image developing toner includes a polyester resin, the electrostatic image developing toner having a sulfur element concentration S at % and a nitrogen element concentration N at % which satisfies 0.5≦N/S≦10, the nitrogen element concentration N being from 0.002 at % to 2.5 at %. | 08-21-2008 |
| 20080261133 | 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 a part of the monomer units have a residue of surfactant. | 10-23-2008 |
| 20090061333 | CARRIER FOR ELECTROSTATIC LATENT IMAGE DEVELOPMENT, AND DEVELOPER FOR ELECTROSTATIC LATENT IMAGE DEVELOPMENT, METHOD OF FORMING AN IMAGE, DEVELOPER CARTRIDGE FOR ELECTROSTATIC LATENT IMAGE DEVELOPMENT, PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS USING THE SAME - A carrier for developing an electrostatic latent image includes carrier particles, and the carrier particles include magnetic particles and a coating layer coating the surfaces of the magnetic particles. The BET specific surface area of the magnetic particles is 0.1300 m | 03-05-2009 |
| 20090297977 | Resin particle liquid dispersion for electrostatic image developing toner, electrostatic image developing toner, production method thereof, developer and image forming method - A resin particle liquid dispersion for an electrostatic image developing toner, comprising: an aqueous medium; and a resin particle dispersed in the aqueous medium to have a median diameter of 0.05 to 2.0 μm, the resin particle comprising a polycondensable polymer obtained by polycondensing polycondensable monomers, wherein a storage modulus GL( | 12-03-2009 |
| 20100047705 | 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 polycondensation monomer in the presence of a polycondensation catalyst, the releasing agent comprises a condensation compound obtained by condensing a condensation monomer in the presence of a condensation catalyst, the toner contains a metallic element derived from the polycondensation catalyst and the condensation catalyst in an amount of from 0 to 10 ppm, and the toner contains a sulfur component in an amount of from 100 to 20,000 ppm. | 02-25-2010 |
| 20110020030 | IMAGE FORMING METHOD, PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS - An image forming method includes charging an image holding member; forming an electrostatic latent image on a surface of the image holding member; developing the electrostatic latent image formed on the surface of the image holding member with a toner or an electrostatic image developer to form a toner image; transferring the toner image formed on the surface of the image holding member onto a surface of a transfer-receiving material; fixing the toner image by pressurization without heating; feeding at least one photoreactive component to the toner or toner image; and irradiating the toner image with ultraviolet rays, wherein the toner satisfies the relationship of the following relational expression (1): | 01-27-2011 |
| 20110020743 | BAROPLASTIC, RESIN COMPOSITION, ELECTROSTATIC-IMAGE-DEVELOPING TONER, ELECTROSTATIC IMAGE DEVELOPER, TONER CARTRIDGE, PROCESS CARTRIDGE, IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD - A baroplastic includes a first resin with a first Tg; and a second resin with a second Tg that is lower than the first Tg by 20° C. or more, and has a photoreactive group. | 01-27-2011 |
| 20110171572 | TONER FOR DEVELOPING ELECTROSTATIC IMAGE, DEVELOPER FOR ELECTROSTATIC IMAGE, TONER CARTRIDGE, PROCESS CARTRIDGE, IMAGE FORMING METHOD, AND IMAGE FORMING APPARATUS - A toner for developing an electrostatic image contains at least one of an oxidation polymerizable monomer and a polymer having an ethylenically unsaturated group, and an oxidation polymerization catalyst in a form of a composite with inorganic particles, wherein a temperature T(10 Mpa) and a temperature T(1 Mpa) satisfies the following expression (1): | 07-14-2011 |