Patent application number | Description | Published |
20090233210 | TONER FOR DEVELOPING ELECTROSTATIC CHARGE IMAGE, ELECTROSTATIC CHARGE IMAGE DEVELOPER, TONER CARTRIDGE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - There is provided a toner for developing an electrostatic charge image including a binder resin, a colorant and a releasing agent, wherein the content ratio of particles having a number particle diameter of 4.5 μm or more and less than 7.5 μm and a circularity degree of 0.980 or more is in a range from about 5 number % to about 15 number %, and the content ratio of particles having a number particle diameter of not 7.5 μm or more and less than 15 μm and a circularity degree of 0.900 or more and less than 0.940 is about 5 number % or less. | 09-17-2009 |
20090274972 | ELECTROSTATIC-IMAGE-DEVELOPING TONER, METHOD OF PRODUCING THE SAME, ELECTROSTATIC IMAGE DEVELOPER, IMAGE FORMING METHOD AND IMAGE FORMING APPARATUS - An electrostatic-image-developing toner includes a phosphonic acid based sequestering agent. | 11-05-2009 |
20100099038 | ELECTROSTATIC IMAGE DEVELOPING TONER, ELECTROSTATIC IMAGE DEVELOPER, TONER CARTRIDGE, PROCESS CARTRIDGE, IMAGE FORMING METHOD, AND IMAGE FORMING APPARATUS - An electrostatic image developing toner includes a binder resin; and a pigment having a complementary relationship with a color hue of the binder resin, the pigment being contained in an amount of about 1 ppm or greater but not greater than about 20 ppm. | 04-22-2010 |
20100104967 | ELECTROSTATIC-IMAGE-DEVELOPING TONER AND PREPARATION PROCESS THEREOF, ELECTROSTATIC IMAGE DEVELOPER, TONER CARTRIDGE, PROCESS CARTRIDGE, IMAGE FORMING METHOD AND IMAGE FORMING APPARATUS - An electrostatic-image-developing toner includes: a binder resin; and a yellow pigment in an amount of from about 5 to about 50 ppm. | 04-29-2010 |
20100124715 | ELECTROSTATIC CHARGE IMAGE DEVELOPING TONER AND METHOD OF PRODUCING THE SAME, ELECTROSTATIC CHARGE IMAGE DEVELOPER, TONER CARTRIDGE, PROCESS CARTRIDGE, AND IMAGE FORMING DEVICE - A toner for developing an electrostatic charge image includes: an amorphous polyester resin; a crystalline polyester resin; and a releasing agent, an amount of the releasing agent in the toner being from 5 to 15% by weight; an amount of the releasing agent present at a surface of the toner being from 10 to 35% by weight; and the toner showing at least one endothermic peak in each of a temperature range from 45 to 60° C., a temperature range from 65 to 80° C., and a temperature range from 85 to 100° C. in a temperature-rise process of differential scanning calorimetry of the toner. | 05-20-2010 |
20100183964 | ELECTROSTATIC IMAGE DEVELOPING GREEN TONER, ELECTROSTATIC IMAGE DEVELOPER, ELECTROSTATIC IMAGE DEVELOPING TONER SET, ELECTROSTATIC IMAGE DEVELOPER SET AND IMAGE FORMING APPARATUS - An electrostatic image developing green toner includes: a binder resin; a coloring agent; and a release agent, and the electrostatic image developing green toner satisfying the following equations: | 07-22-2010 |
20100183965 | RED TONER FOR ELECTROSTATIC IMAGE DEVELOPMENT, DEVELOPER FOR ELECTROSTATIC IMAGE DEVELOPMENT, TONER SET FOR ELECTROSTATIC IMAGE DEVELOPMENT, DEVELOPER SET FOR ELECTROSTATIC IMAGE DEVELOPMENT AND IMAGE FORMING APPARATUS - A red toner for electrostatic image development, includes: a binder resin; a coloring agent; and a release agent, wherein the red toner for electrostatic image development satisfies the following formulae: | 07-22-2010 |
20100183966 | TONER SET FOR ELECTROSTATIC IMAGE DEVELOPMENT, IMAGE FORMING METHOD AND IMAGE FORMING APPARATUS - A toner set for electrostatic image development, includes: at least one kind of a colored toner that contains a coloring agent; and a transparent toner that does not substantially contain a coloring agent, wherein a proportion of particles having a shape factor of 0.94 or less in mother particles of the transparent toner is about 5% by number or less based on particles having a particle diameter of 7.5 to 15 μm, and a reflectance of the mother particles of the transparent toner is about 90% or more for light at a wavelength of 700 nm. | 07-22-2010 |
20100183968 | TRANSPARENT TONER FOR DEVELOPING ELECTROSTATIC LATENT IMAGE, ELECTROSTATIC LATENT IMAGE DEVELOPER, TONER CARTRIDGE, PROCESS CARTRIDGE, IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD - The invention provides a transparent toner for developing an electrostatic latent image, including a binder resin and a release agent, the difference between the endothermic peak Tm of the release agent in a temperature increasing process and the exothermic peak Tc of the release agent in a temperature decreasing process being from about 10° C. to about 50° C., where Tm and Tc are measured with a differential scanning calorimeter (DSC) according to the ASTM method. | 07-22-2010 |
20100209835 | TRANSPARENT TONER FOR ELECTROSTATIC LATENT IMAGE DEVELOPMENT, METHOD FOR PRODUCING THE SAME, ELECTROSTATIC LATENT IMAGE DEVELOPER, TONER CARTRIDGE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS - The invention provides a transparent toner for electrostatic latent image development, containing a polyester resin and a release agent, the difference between an endothermic peak Tm of the release agent in a temperature increasing process and an exothermic peak Tc of the release agent in a temperature decreasing process when measured by an ASTM method with a differential scanning calorimeter (DSC) is from about 40° C. to about 50° C., and the degree of exposure of the release agent at the surface of the toner as determined quantitatively by X-ray photoelectron spectroscopy (XPS) is about 10% or less. | 08-19-2010 |
20100216066 | TRANSPARENT TONER FOR ELECTROSTATIC LATENT IMAGE DEVELOPING, ELECTROSTATIC LATENT IMAGE DEVELOPER, TONER CARTRIDGE, PROCESS CARTRIDGE, IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD - A transparent toner for electrostatic latent image developing, including a binder resin and a release agent, the difference between Tm and Tc being from about 30° C. to about 50° C., wherein Tm is an endothermic peak temperature of the release agent determined in a temperature rising process and Tc is an exothermic peak temperature of the release agent determined in a temperature decreasing process, in a measurement by a differential scanning calorimeter (DSC) according an ASTM method, and the toner having a weight average molecular weight of from about 35,000 to about 70,000. | 08-26-2010 |
20120077119 | ORANGE TONER AND TONER CARTRIDGE FOR STORING THE SAME, ORANGE DEVELOPER AND PROCESS CARTRIDGE FOR STORING THE SAME, COLOR TONER SET, AND IMAGE FORMING APPARATUS - An orange toner including a binder resin containing a polyester resin having a dodecenyl succinic acid structure as a constituent unit; and C.I. Pigment Orange 38 in a blending amount of from 5% by mass to 18% by mass relative to the whole mass of the toner and a toner storage container for storing the same, an orange developer and a process cartridge for storing the same, a color toner set, and an image forming apparatus. | 03-29-2012 |
20120208120 | TONER FOR USE IN THE DEVELOPMENT OF ELECTROSTATIC LATENT IMAGES, ELECTROSTATIC LATENT IMAGE DEVELOPER, AND IMAGE FORMING METHOD - A toner for use in the development of electrostatic latent images contains colored particles including at least a binder resin, a coloring agent and a releasing agent, and an external additive. An average circularity of the toner is 0.975 or more; a median of arithmetic average height distribution of the toner is 0.05 μm or more and not more than 0.12 μm; and a fluctuation of arithmetic average height is not more than 35. Preferably, a value of 90% accumulation of the arithmetic average height distribution of the toner is less than 0.15 μm; and a fluctuation of number average particle size and a fluctuation of circularity of the toner are not more than 25 and not more than 2.5, respectively. The electrostatic latent image developer contains the foregoing toner and a carrier, and the image forming method uses the foregoing toner or the, foregoing developer. | 08-16-2012 |
20120281997 | ELECTROSTATIC CHARGE IMAGE DEVELOPING TONER AND METHOD OF PRODUCING THE SAME, ELECTROSTATIC CHARGE IMAGE DEVELOPER, TONER CARTRIDGE, PROCESS CARTRIDGE, AND IMAGE FORMING DEVICE - A toner for developing an electrostatic charge image includes: an amorphous polyester resin; a crystalline polyester resin; and a releasing agent, an amount of the releasing agent in the toner being from 5 to 15% by weight; an amount of the releasing agent present at a surface of the toner being from 10 to 35% by weight; and the toner showing at least one endothermic peak in each of a temperature range from 45 to 60° C., a temperature range from 65 to 80° C., and a temperature range from 85 to 100° C. in a temperature-rise process of differential scanning calorimetry of the toner. | 11-08-2012 |
20130164667 | MAGENTA TONER FOR ELECTROPHOTOGRAPHY, DEVELOPER, TONER CARTRIDGE, PROCESS CARTRIDGE, IMAGE FORMING APPARATUS, AND IMAGE FORMING METHOD - A magenta toner for electrophotography, including: toner particles containing, a polyester resin, a coloring agent containing a solid solution of C.I. Pigment Violet 19 and C.I. Pigment Red 122, a release agent, and inorganic particles; and an external additive, wherein an average particle diameter of the inorganic particle is 0.75 times or more the average particle diameter of the coloring agent. | 06-27-2013 |
20130216793 | TRANSPARENT TONER AND TONER IMAGE USING THE SAME, ELECTROSTATIC LATENT IMAGE DEVELOPER, TONER CARTRIDGE, PROCESS CARTRIDGE, IMAGE FORMING APPARATUS, AND IMAGE FORMING METHOD - A transparent toner for developing an electrostatic latent image includes toner particles containing a binder resin; and an external additive containing cerium oxide, in which a content of cerium in all toner particles is from 0.05% by weight to 0.20% by weight, the cerium oxide contains a praseodymium, and a content of praseodymium in all toner particles is from 0.001% by weight to 0.050% by weight. | 08-22-2013 |
20130224640 | TRANSPARENT TONER AND TONER IMAGE USING THE SAME, ELECTROSTATIC LATENT IMAGE DEVELOPER, TONER CARTRIDGE, PROCESS CARTRIDGE, IMAGE FORMING APPARATUS, AND IMAGE FORMING METHOD - A transparent toner for developing an electrostatic latent image includes toner particles containing a binder resin; and an external additive containing cerium oxide, in which the content of cerium in all toner particles is in the range of 0.05% by weight to 0.20% by weight, and the cerium oxide contains neodymium and the content of neodymium in all toner particles is in the range of 0.001% by weight to 0.015% by weight. | 08-29-2013 |
20130252156 | ELECTROSTATIC CHARGE IMAGE DEVELOPING TONER, ELECTROSTATIC CHARGE IMAGE DEVELOPER, TONER CARTRIDGE, PROCESS CARTRIDGE, IMAGE FORMING APPARATUS, AND IMAGE FORMING METHOD - An electrostatic charge image developing toner includes toner particles that contain a binder resin having a carboxyl group, in which the carboxyl group in the binder resin present on the surfaces of the toner particles forms an alkaline earth metal salt, and an amount of the alkaline earth metal which is detected through ion chromatography of the toner particles is in a range of from 1.00×10 | 09-26-2013 |
20140106273 | POSITIVELY CHARGEABLE TONER, ELECTROSTATIC CHARGE IMAGE DEVELOPER, TONER CARTRIDGE, IMAGE FORMING METHOD, AND IMAGE FORMING APPARATUS - There is provided a positively chargeable toner including toner mother particles containing a binder resin having an ethylenically unsaturated bond, wherein the amine value of a component extracted with a water phase by the addition of ion exchanged water after mixing the toner with methyl ethyl ketone is from 600 to 1,250 and the weight average molecular weight of the component extracted with the water phase is from 1,000 to 200,000. | 04-17-2014 |