Kozuru
Hiroyuki Kozuru, Yamanashi JP
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20090035684 | IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD - An image forming method is disclosed, which includes steps of cleaning toner remaining on a photoreceptor surface by a cleaning blade which is arranged on counter direction to rotation direction of the photoreceptor, supplying a fatty acid metal salt onto the photoreceptor surface after the cleaning, spreading the supplied fatty acid metal salt on the photoreceptor surface by using a spreading blade which is arranged on trail direction to rotation direction of the photoreceptor, charging the photoreceptor by a charging member, exposing the photoreceptor to form a latent image, developing the latent image by a developer to form a toner image on the photoreceptor, and transferring the toner image onto an image receiving member by a transfer roller facing to the photoreceptor through the image receiving material, in which the toner comprises a binder resin and a colorant, in which the toner has a glass transition point of from 20 to 45° C. and the binder resin contains 50% or more of vinyl polymer resin by weight based on the whole weight of the binder resin. | 02-05-2009 |
20100151378 | TONER - Disclosed is toner in which is used in an image formation process comprising the steps of transferring an image of toner formed on a photoreceptor onto a recording sheet, and removing any residual toner remaining on any of the photoreceptor, an intermediate transfer member and a secondary transfer member with a cleaning blade, the toner containing at least toner particles (A) and small particles (B), wherein the toner particles (A) have an average circularity of from 0.93 to 0.99 and a number-based median diameter (D | 06-17-2010 |
20120028186 | PRODUCTION METHOD OF TWO-COMPONENT DEVELOPER - Disclosed is a production method of a two-component developer for developing an electrostatic image comprising a toner and a resin coated carrier having a porous magnetic core particle and a resin coated layer, wherein the porous magnetic core particle are composed of a porous ferrite material and have pit apertures on a surface of the particle, and the method comprises steps of blocking the pit apertures of the porous magnetic core particle with rubber particles by dry mixing of the porous magnetic core particle and the rubber particles, forming the resin coated carrier by forming a resin layer on the porous magnetic core particle whose pore openings have been blocked, and mixing the resin coated carrier and the toner. | 02-02-2012 |
20120225379 | TWO-COMPONENT DEVELOPER - A two-component developer is disclosed, composing a toner comprising parent toner particles with an attached external additive and a carrier provided with a resin covering layer on a surface of a core particle, wherein the resin covering layer comprises a binder resin comprising an acrylic resin and when the resin covering layer is divided in half to a core particle side and a surface side, a nitrogen element content of the core particle side is larger than a nitrogen element content of the surface side. | 09-06-2012 |
Hiroyuki Kozuru, Tokyo JP
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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 |
20120021352 | TONER MANUFACTURING METHOD - Disclosed is a manufacturing method of toner which includes at least polyester resin and colorant, comprising the steps of: (A) dissolving, into an organic solvent, the polyester resin and ultrahigh molecular weight styrene resin in which a peak is present in a range larger than 500 thousands and smaller than 3 million in a molecular weight distribution, and preparing a binder resin solution; (B) dispersing the binder resin solution as binder resin solution droplets into an aqueous medium; (C) removing the organic solvent from the binder resin solution droplets, and preparing a resin particle dispersion; and (D) aggregating resin particles from which the organic solvent is removed and colorant particles containing the colorant with each other, and forming toner particles. | 01-26-2012 |
Hiroyuki Kozuru, Otsuki-Shi JP
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20140205326 | DEVELOPING DEVICE AND IMAGE FORMING APPARATUS - A developing device includes a developer container, a developing unit, a developer outlet and a replenishment developer inlet. The developer container contains a developer composed of a toner and a first carrier. The developing unit develops an electrostatic latent image on an image carrier using the developer. The developer outlet discharges the developer. The replenishment developer inlet supplies a replenishment developer to the developer container. The replenishment developer includes a second carrier. A ratio of a poured bulk density of the second carrier to a poured bulk density of the first carrier ranges from 1.05 to 1.65. | 07-24-2014 |
20140205327 | DEVELOPING DEVICE AND IMAGE FORMING APPARATUS - A developing device includes a developer container, a developing unit, a developer outlet and a replenishment developer inlet. The developer container contains a developer composed of a toner and a first carrier. The developing unit develops an electrostatic latent image on an image carrier using the developer. The developer outlet discharges the developer. The replenishment developer inlet supplies a replenishment developer to the developer container. The replenishment developer includes a second carrier. A ratio of a poured bulk density of the second carrier to a poured bulk density of the first carrier ranges from 0.60 to 0.95. | 07-24-2014 |
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 |
Kazuma Kozuru, Anan-Shi JP
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20140321491 | SEMICONDUCTOR LASER DEVICE AND MANUFACTURING METHOD THEREOF, AND SUBMOUNT MANUFACTURING METHOD - A semiconductor laser device can include an insulating single crystal SiC having a first surface, a second surface, and micropipes having openings in the first surface and the second surface. A conductive base can be provided on a side of the first surface of the single crystal SiC, and a semiconductor laser element can be provided on a side of the second surface of the single crystal SiC. An insulating member can be formed in the micropipes. | 10-30-2014 |
Susumu Kozuru, Tokyo JP
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20130327623 | SWITCHGEAR - A bus is placed at the center of a housing. Breakers and cables forming branch circuits branching from the bus are placed at the upper and lower stages in the housing, being displaced in the right-left direction. Spaces formed between the side wall of the housing and the side walls of an upper-stage breaker compartment and an upper-stage cable compartment containing the upper-stage apparatuses are used as paths leading to the housing ceiling for a bus compartment, and a lower-stage breaker compartment and a lower-stage cable compartment containing the lower-stage apparatuses. The bus compartment and all the apparatus compartments each directly lead to a ceiling portion of the housing and have an opening portion. Pressure discharge plates are provided on the opening portions. | 12-12-2013 |