Patent application number | Description | Published |
20090053638 | Electrostatic image developing toner, electrostatic image developer, toner cartridge, process cartridge and image forming apparatus - An electrostatic image developing toner including a binder resin; and a colorant, and satisfying following conditions (1) and (2): | 02-26-2009 |
20100233615 | METHOD OF PRODUCING A CARRIER FOR ELECTROPHOTOGRAPHY AND METHOD OF PRODUCING A DEVELOPER FOR ELECTROPHOTOGRAPHY - A method of producing a carrier for electrophotography includes: covering a surface of a core particle with a coating layer including resin particles and a crosslinking resin in an uncrosslinked state present in spaces between the resin particles; and applying a mechanical impact from the outer surface of the coating layer before crosslinking of the crosslinking resin. | 09-16-2010 |
20100248112 | TWO-COMPONENT DEVELOPER, DEVELOPER CARTRIDGE, PROCESS CARTRIDGE AND IMAGE FORMATION APPARATUS - A two-component developer including a yellow toner and a carrier, the yellow toner including at least one of C. I. Pigment Yellow 155 or C. I. Pigment Yellow 185, and an azo pigment, the carrier including a first resin, magnetic particles dispersed in the first resin, and elements of Cu, Zn, Ni and Mn each in an amount of from 0 to about 2,000 ppm. | 09-30-2010 |
20110236814 | CARRIER FOR DEVELOPING ELECTROSTATIC CHARGE IMAGE, DEVELOPER FOR ELECTROSTATIC CHARGE IMAGE, PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS - A carrier for developing an electrostatic charge image, including a core, and a coating layer including a resin and inorganic oxide particles that exhibit electroconductivity, by which the core is coated, wherein the inorganic oxide particles have, when they are aggregated, an aggregation size of or when they are not aggregated, a primary particle size of, from 230 nm to 970 nm. | 09-29-2011 |
20120064452 | CARRIER FOR DEVELOPING ELECTROSTATIC CHARGE IMAGE, DEVELOPER FOR DEVELOPING ELECTROSTATIC CHARGE IMAGE, DEVELOPER CARTRIDGE FOR DEVELOPING ELECTROSTATIC CHARGE IMAGE, PROCESS CARTRIDGE, IMAGE FORMING APPARATUS, AND IMAGE FORMING METHOD - A carrier for developing an electrostatic charge image comprising a core material and a coating resin layer that covers the core material,wherein the core material is a ferrite particle having a Brunauer-Emmitt-Teller (BET) specific surface area of from about 0.12 m | 03-15-2012 |
20120214098 | CARRIER FOR TWO-COMPONENT DEVELOPER, TWO-COMPONENT DEVELOPER, IMAGE FORMING METHOD, AND IMAGE FORMING APPARATUS - A carrier for a two-component developer, includes: magnetic particles and a resin coating layer that is coated on the magnetic particles, the resin coating layer containing metal nitride particles having a volume average primary particle diameter of from about 300 to about 2,000 nm. | 08-23-2012 |
20130040236 | CARRIER FOR TWO-COMPONENT DEVELOPER, TWO-COMPONENT DEVELOPER, IMAGE FORMING METHOD, AND IMAGE FORMING APPARATUS - A carrier for a two-component developer includes magnetic particles, and a resin coating layer that covers the magnetic particles. The resin coating layer contains metal boride particles having a volume average primary particle diameter of from about 300 nm to about 2,500 nm. | 02-14-2013 |
20140051022 | ELECTROSTATIC CHARGE IMAGE DEVELOPING CARRIER, ELECTROSTATIC CHARGE IMAGE DEVELOPER, PROCESS CARTRIDGE, IMAGE FORMING APPARATUS, AND IMAGE FORMING METHOD - An electrostatic charge image developing carrier includes a core particle that has a BET specific surface area of from 0.15 m | 02-20-2014 |