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    • 4. 发明授权
    • Image forming method
    • 图像形成方法
    • US08236472B2
    • 2012-08-07
    • US12624487
    • 2009-11-24
    • Tatsuya FujisakiKaori SoedaShinya ObaraNatsuko Kusaka
    • Tatsuya FujisakiKaori SoedaShinya ObaraNatsuko Kusaka
    • G03G13/24
    • G03G15/0126G03G9/0821G03G9/08782G03G9/08795G03G9/08797G03G9/0914G03G9/0918
    • Provided is a method for forming an image with a set of electrostatic charge image developing toners using a digital electrophotographic method, provided that the set of electrostatic charge image developing toners comprises a black toner and a light gray toner, the method comprising the steps of: forming an electrostatic latent image on an image support; developing the electrostatic latent image with the black toner to form a black toner image; developing the electrostatic latent image with the light gray toner to form a light gray toner image; and fixing the black toner image and the light gray toner image, wherein the black toner and the light gray toner each independently contains a wax having an endothermic peak in the range of 60 to 105° C.; and the light gray toner has a transmittance in the range of 40 to 90%.
    • 提供了一种使用数字电子照相方法用一组静电荷图像显影调色剂形成图像的方法,只要该组静电荷图像显影调色剂包括黑色调色剂和浅灰色调色剂,该方法包括以下步骤: 在图像载体上形成静电潜像; 用黑色调色剂显影静电潜像以形成黑色调色剂图像; 用浅灰色调色剂显影静电潜像以形成浅灰色调色剂图像; 并且固定黑色调色剂图像和浅灰色调色剂图像,其中黑色调色剂和浅灰色调色剂各自独立地包含具有在60至105℃范围内的吸热峰的蜡; 浅灰色调色剂的透光率在40〜90%的范围内。
    • 5. 发明授权
    • Toner for electrostatic image development
    • 调色剂用于静电图像显影
    • US08685606B2
    • 2014-04-01
    • US13446427
    • 2012-04-13
    • Junya OnishiShiro HiranoSatoshi UchinoNoboru UedaShinya Obara
    • Junya OnishiShiro HiranoSatoshi UchinoNoboru UedaShinya Obara
    • G03G9/00
    • G03G9/09328G03G9/09364G03G9/09392
    • 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.The toner is composed of toner particles obtained by forming a shell layer containing a styrene-acryl-modified polyester resin on the surface of each of core particles comprising a binder resin containing at least a styrene-acrylic resin. The styrene-acryl-modified polyester resin is obtained bonding a styrene-acrylic polymer segment to a terminal of a polyester segment, and the content of the styrene-acrylic polymer segment in the styrene-acryl-modified polyester resin is 5% by mass or more and 30% by mass or less.
    • 公开了一种静电图像显影用调色剂,其既满足低温定影性也具有优异的高温保存稳定性,可以获得优异的充电性和抗碎裂性,并且因此即使通过高性能机器也能形成高质量的图像,例如 一台高速机。 该调色剂由在包含至少含有苯乙烯 - 丙烯酸树脂的粘合剂树脂的每个核心颗粒的表面上形成含有苯乙烯 - 丙烯酸改性聚酯树脂的壳层而获得的调色剂颗粒组成。 得到苯乙烯 - 丙烯酸改性聚酯树脂,将苯乙烯 - 丙烯酸聚合物链段连接到聚酯链段的末端,苯乙烯 - 丙烯酸改性聚酯树脂中苯乙烯 - 丙烯酸聚合物链段的含量为5质量% 多于30质量%以下。
    • 6. 发明授权
    • Electrostatic charge image developing toner
    • 静电荷图像显影墨粉
    • US08431294B2
    • 2013-04-30
    • US12962015
    • 2010-12-07
    • Hidehito HarukiHiroyuki YasukawaShinya Obara
    • Hidehito HarukiHiroyuki YasukawaShinya Obara
    • G03G9/00
    • G03G9/08711G03G9/0806G03G9/0906G03G9/0926
    • Provided is an electrostatic charge image developing toner capable of reproducing color exhibiting high lightness and chroma, and obtaining a wide color reproduction range. Disclosed is the toner possessing a toner particle containing at least a binder resin and a colorant, wherein the colorant possesses a yellowish color nonfluorescent dye exhibiting a peak wavelength of an absorption spectrum being in a wavelength range of 400-480 nm, and a fluorescent dye exhibiting a peak wavelength of an emission spectrum being in a wavelength range of 480-560 nm, wherein the nonfluorescent dye has a content of 2-8 parts by weight, based on 100 parts by weight of the binder resin, and the fluorescent dye has a content of 0.05-0.2 parts by weight, based on 100 parts by weight of the resin, provided that a content ratio of the nonfluorescent dye to the fluorescent dye is 15-150.
    • 本发明提供一种静电荷图像显影调色剂,其能够再现具有高亮度和色度的颜色,并获得宽的色彩再现范围。 公开了具有至少含有粘合剂树脂和着色剂的调色剂颗粒的调色剂,其中着色剂具有呈现波长范围为400-480nm的吸收光谱的峰值波长的黄色非荧光染料,以及荧光染料 表现出波长范围为480-560nm的发射光谱的峰值波长,其中基于100重量份的粘合剂树脂,非荧光染料的含量为2-8重量份,荧光染料具有 基于100重量份的树脂,其含量为0.05-0.2重量份,条件是非荧光染料与荧光染料的含量比为15-150。
    • 8. 发明申请
    • DEVELOPING ROLLER AND IMAGE FORMING METHOD EMPLOYING THE SAME
    • 开发滚子和使用它的图像形成方法
    • US20080220361A1
    • 2008-09-11
    • US11972898
    • 2008-01-11
    • Satoshi UchinoShinya ObaraSo Matsuya
    • Satoshi UchinoShinya ObaraSo Matsuya
    • G03G9/087G03G15/08
    • G03G15/0818Y10T428/31551Y10T428/31663Y10T428/31725
    • 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.
    • 目的是提供具有能够在重复使用期间抑制残留电位的表面层的显影辊,而不损害层间粘合性,防止调色剂泄漏和由表面上的粘附物质引起的污染,并且由于均匀的调色剂带电而防止显影不均匀 ; 并且还提供使用显影辊的图像形成方法。 还公开了具有导电轴的显影辊和设置在导电轴的外周表面周围的树脂层,其中树脂层具有含有硅氧烷共聚物树脂作为主要成分的表面层和含有聚酰胺树脂的层 作为主要组分,其紧邻表面层的下方。