Patent application number | Description | Published |
20080220361 | DEVELOPING ROLLER AND IMAGE FORMING METHOD EMPLOYING THE SAME - An objective is to provide a developing roller possessing a surface layer capable of suppressing the residual potential during repetitive use with no damage of interlayer adhesiveness, preventing toner leakage and contaminations caused by adhesion matter on the surface, and preventing developing unevenness because of even toner electrification; and also to provide an image forming method employing the developing roller. Also disclose is a developing roller possessing a conductive shaft, and a resin layer provided around an outer circumferential surface of the conductive shaft, wherein the resin layer possesses a surface layer containing a silicone copolymer resin as a principal component and a layer containing a polyamide resin as a principal component, that is provided immediately below the surface layer. | 09-11-2008 |
20080220363 | DEVELOPING ROLLER AND IMAGE FORMING METHOD USING THE SAME - A developing roller for electrophotographic image forming apparatus is disclosed. The developing roller has a shaft and a resin layer, and the resin layer comprises a binder resin, a resin particle having a particle diameter of 5 μm to 30 μm and a content of from 10% to 50% by weight with respect to the resin layer, and inorganic oxide particles having a number based average primary particle diameter of 5 nm to 100 nm and a content of 1% to 40% by weight with respect to the resin layer. An image forming method employing the developer roller is also disclosed. | 09-11-2008 |
20090035027 | DEVELOPING ROLLER - The objective of the present invention is to provide a developing roller that can form a toner image with high quality. | 02-05-2009 |
20090035687 | Colored Particles and Manufacturing Method Thereof - Colored particles and their manufacturing method are disclosed. Each of the colored particles composed of a core shell structure comprising a core particle and a colored shell layer formed on a surface of the core particle; and the core particle is composed of a hydrophobic resin; the colored shell layer comprises an active agent structure resin having a hydrophobic part and a hydrophilic part, and a colorant particle; a volume based median particle diameter of the colored particles is 2 to 100 μm; and
| 02-05-2009 |
20090116881 | INTERMEDIATE TRANSFER BELT - The present invention provides an intermediate transfer belt allowing formation of a high-quality toner image. | 05-07-2009 |
20090251764 | IMAGE DISPLAY DEVICE - An image display device | 10-08-2009 |
20100207868 | DISPLAY PARTICLES FOR IMAGE DISPLAY APPARATUS AND IMAGE DISPLAY APPARATUS USING THE SAME - Display particles that are used for an image display apparatus in which the display particles are sealed between two substrates at least one of which is transparent, and by generating an electric field between the substrates, the display particles are moved so that an image is displayed, wherein the display particles include positively chargeable display particles and negatively chargeable display particles, and the positively chargeable display particles and the negatively chargeable display particles are formed by allowing inorganic fine particles made of the same constituent materials to be adhered to the surfaces of base particles, and an image display apparatus provided with the display particles. | 08-19-2010 |
20100208330 | IMAGE DISPLAY APPARATUS - An image display apparatus comprising two substrates at least one of which is transparent, ribs for maintaining a distance between the substrates and display particles that are sealed between the substrates in a powder state, and displaying an image by generating an electric field between the substrates so that the display particles are moved, | 08-19-2010 |
20100302622 | DISPLAY PARTICLES FOR IMAGE DISPLAY DEVICE AND IMAGE DISPLAY DEVICE INSTALLED WITH THE SAME - Display particles for use in image display devices with display particles sealed in a powdery form in the space between two substrates, at least one of which is transparent, that display an image while the display particles are moved as electric field is generated between the substrates, characterized in that the display particles contain at least base particles containing at least a resin and a colorant and inorganic fine particles added to the base particle; externally and a separation amount A of the inorganic fine particles having a primary particle size of 5 to 60 nm separated from the display particles when the particles are provided with an ultrasonic energy of 60 μA for 1 minute in aqueous polyoxyethylphenylether solution is 0.1 to 2.5 wt % with respect to the base particles, and an image display device installed with the display particles for image display devices. | 12-02-2010 |
20100302623 | IMAGE DISPLAY APPARATUS - An image display apparatus including: two substrates at least one of which is transparent; and display particles that are sealed between the substrates in a powder state so that by generating an electric field between the substrates, the display particles are moved to display an image; wherein, of contact surfaces with the display particles in a gap between the substrates, both of the surfaces on the substrate sides have oxide layers of the same metal, and the display particles include positively chargeable display particles and negatively chargeable display particles, and both of the positively chargeable display particles and the negatively chargeable display particles have structures obtained by successively forming oxide layers of the same metal as that of the metal oxide layers possessed by the surfaces on the substrate sides and organic layers on the surfaces of base particles that contain at least a resin and a colorant. | 12-02-2010 |
20100321762 | DISPLAY PARTICLES FOR IMAGE DISPLAY APPARATUS AND IMAGE DISPLAY APPARATUS LOADED WITH THE SAME - Display particles having metal oxide layers formed on the surfaces of base particles containing at least a resin and a colorant, wherein the metal oxide layers comprise a polycondensation product formed by using a compound A represented by the following formula (A) and a compound B indicated by the following formula (B) as materials, and an image display apparatus loaded with the display particles: | 12-23-2010 |
20100321763 | DISPLAY PARTICLES FOR IMAGE DISPLAY APPARATUS AND IMAGE DISPLAY APPARATUS LOADED WITH THE SAME - Display particles for an image display apparatus, wherein the image display apparatus comprises two substrates at least one of which is transparent, with the display particles being sealed between the substrates in a powder state, so that by generating an electric field between the substrates, the display particles are moved to display an image, wherein the display particles are formed through processes in which at least a binder resin and a colorant are kneaded and pulverized to give core particles, resin fine particles are fixed and fused on surfaces of the core particles, and then the core particles on which the resin fine particles are fixed and fused are sphered to give an average degree of roundness of 0.960 or more, and wherein a ratio of use of the resin fine particles is set in the range from 100 to 300% in the rate of the total projection area of the resin fine particles relative to the total surface area of the core particles, as well as an image display apparatus loaded with the display particles. | 12-23-2010 |
20110151371 | TONER FOR ELECTROSTATIC LATENT IMAGE DEVELOPMENT AND IMAGE FORMING METHOD - A toner for electrostatic latent image development is disclosed, comprising colored particles containing a binder resin and a colorant, and an external-additive, wherein the external additive comprises boron nitride particles exhibiting a number average primary particle size of 10 to 500 nm. The production method of the toner is also disclosed. | 06-23-2011 |
20120094227 | TONER FOR DEVELOPING ELECTROSTATIC LATENT IMAGE - A toner for developing an electrostatic latent image is disclosed, the toner being composed of toner particles which comprises toner mother particles containing a binding resin having a hydrophilic polar group, a coloring agent and a releasing agent, and an external additive, wherein a mass of Na atoms in a neighborhood of surface of the toner particles measured by the measuring method described below is 50 to 750μg in 1 g of toner particles. | 04-19-2012 |
20120264046 | TONER FOR ELECTROSTATIC IMAGE DEVELOPMENT - Disclosed is a toner for electrostatic image development that satisfies both low-temperature fixing ability and excellent high-temperature storage stability, achieves excellent charge property and shatter resistance, and consequently can form a high-quality image even by a high-performance machine such as a high-speed machine. | 10-18-2012 |
20140363762 | TWO-COMPONENT DEVELOPING AGENT FOR DEVELOPING ELECTROSTATIC LATENT IMAGE AND METHOD FOR FORMING ELECTROPHOTOGRAPHIC IMAGE - A two-component developing agent for developing an electrostatic latent image includes toner particles composed of toner base particles and an exterior additive attached on the toner base particles, and carrier particles composed of carrier core particles and a coating resin provided on the carrier core particles. The coating resin includes a sulfur atom and a resin obtained by polymerizing an isobutyl methacrylate monomer, and the toner base particles include a sulfur atom. | 12-11-2014 |