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    • 4. 发明授权
    • Color toner and two-component developer containing same
    • 彩色调色剂和含有它的双组分显影剂
    • US5149610A
    • 1992-09-22
    • US847763
    • 1992-03-04
    • Hiroyuki KobayashiMitsuru UchidaKenji Okado
    • Hiroyuki KobayashiMitsuru UchidaKenji Okado
    • G03G9/08G03G9/09G03G13/01
    • G03G13/013G03G9/08G03G9/09
    • Four color toners of yellow, magenta, cyan and black, and four two-component developers containing the four color toners respectively in combination with a resin-coated ferrite carrier suitable for multi-color electrophotographic copying are provided. Each of the four-color toners is strictly regulated in relation not only to the carrier but also to the other color toners. More specifically, each color toner is strictly controlled with respect to a particle size distribution, freeness from agglomeration, melting characteristics including heat-absorption peaks and apparent viscosity on melting, chromaticity, triboelectric chargeability and optical toner concentration detection characteristic. Because of the strict regulation of these various parameters, the resultant multi-color toner or developer system shows excellent performances at every stage of multi-color electrophotography including development, transfer and fixing (color-mixing) for a long period of successive copying.
    • 提供了黄色,品红色,青色和黑色的四色调色剂和分别与适用于多色电子照相复印的树脂涂覆的铁氧体载体组合的四色调色剂的四种双组分显影剂。 四色调色剂中的每一种都不仅与载体相关,而且与其他颜色调色剂有关。 更具体地说,每种彩色调色剂都是相对于粒度分布,结块游离度,包括热吸收峰的熔融特性和熔融时的表观粘度,色度,摩擦带电性和光调色剂浓度检测特性来严格控制的。 由于这些各种参数的严格调节,所得到的多色调色剂或显影剂系统在多色电子照相术的每个阶段显示出优异的性能,包括长时间连续复制的显影,转印和定影(色混合)。
    • 6. 发明授权
    • Color toner and two-component developer containing same
    • 彩色调色剂和含有它的双组分显影剂
    • US5256512A
    • 1993-10-26
    • US813099
    • 1991-12-24
    • Hiroyuki KobayashiMitsuru UchidaKenji Okado
    • Hiroyuki KobayashiMitsuru UchidaKenji Okado
    • G03G9/08G03G9/09G03G13/01G03G9/097G03G9/107G03G9/113
    • G03G13/013G03G9/08G03G9/09
    • Four color toners of yellow, magenta, cyan and black, and four two-component developers containing the four color toners respectively in combination with a resin-coated ferrite carrier suitable for multi-color electrophotographic copying are provided Each of the four-color toners is strictly regulated in relation not only to the carrier but also to the other color toners. More specifically, each color toner is strictly controlled with respect to a particle size distribution, freeness from agglomeration, melting characteristics including heat-absorption peaks and apparent viscosity on melting, chromaticity, triboelectric chargeability and optical toner concentration detection characteristic. Because of the strict regulation of these various parameters, the resultant multi-color toner or developer system shows excellent performances at every stage of multi-color electrophotography including development, transfer and fixing (color-mixing) for a long period of successive copying.
    • 黄色,品红色,青色和黑色的四种颜色调色剂和分别与适用于多色电子照相复印的树脂涂覆的铁氧体载体组合的四种颜色调色剂的四种双组分显影剂分别是四色调色剂 严格规定不仅与承运人有关,而且与其他颜色调色剂有关。 更具体地说,每种彩色调色剂都是相对于粒度分布,结块游离度,包括热吸收峰的熔融特性和熔融时的表观粘度,色度,摩擦带电性和光调色剂浓度检测特性来严格控制的。 由于这些各种参数的严格调节,所得到的多色调色剂或显影剂系统在多色电子照相术的每个阶段显示出优异的性能,包括长时间连续复制的显影,转印和定影(色混合)。
    • 7. 发明授权
    • Electrophotographic magnetic dry developer containing cerium oxide and
hydrophobic silica
    • 含有氧化铈和疏水性二氧化硅的电子照相磁性干性显影剂
    • US4824752A
    • 1989-04-25
    • US108521
    • 1988-09-12
    • Satoshi YasudaMitsuru UchidaSeiichi TakagiYusuke Karami
    • Satoshi YasudaMitsuru UchidaSeiichi TakagiYusuke Karami
    • G03G9/08G03G9/097G03G9/14
    • G03G9/09783G03G9/09708Y10S430/104
    • A magnetic dry developer, comprising negatively chargeable insulating magnetic toner particles containing, at least, a binder resin, a magnetic substance, and an organo-chromium or -zinc complex; cerium oxide particles containing CeO.sub.2 as a predominant component and having a volume average particle size of 1.0 to 4.0 microns, a heating loss of 0.5 wt. % or less on heating up to 100.degree. C. and a BET specific surface area of 15 m.sup.2 /g or less as measured by the nitrogen adsorption method; and hydrophobicity-imparted negatively chargeable silicon oxide particulates. The cerium oxide particles have a function of disintegrating particularly the hydrophobicity-imparted silicon oxide particulates and enhance the attachment thereof to the toner particles, whereby the developing characteristics including the magnetic triboelectric chargeability are stabilized from the initial stage of electrophotographic copying operation.
    • 一种磁性干燥显影剂,包括至少含有粘合剂树脂,磁性物质和有机铬或锌络合物的可带负电荷的绝缘磁性调色剂颗粒; 含有CeO 2作为主要成分并且体积平均粒径为1.0〜4.0微米的氧化铈粒子,0.5重量%的加热损失。 加热至100℃时的%以下,通过氮吸附法测定的BET比表面积为15m 2 / g以下。 和疏水性赋予的带负电荷的氧化硅微粒。 氧化铈颗粒具有特别是疏水性赋予氧化硅微粒的功能,并且增强了其与调色剂颗粒的连接性,从而从静电复制操作的初始阶段使包括磁摩擦带电性的显影特性稳定。
    • 9. 发明授权
    • Method of forming a multicolor image with color toner and two-component
developer containing same
    • 用彩色调色剂和含有它的双组分显影剂形成多色图像的方法
    • US5164275A
    • 1992-11-17
    • US878414
    • 1992-05-04
    • Hiroyuki KobayashiMitsuru UchidaKenji Okado
    • Hiroyuki KobayashiMitsuru UchidaKenji Okado
    • G03G9/08G03G9/09G03G13/01
    • G03G9/09G03G13/013G03G9/08
    • Four color toners of yellow, magenta, cyan and black, and four two-component developers containing the four color toners respectively in combination with a resin-coated ferrite carrier suitable for multi-color electrophotographic copying are provided. Each of the four-color toners is strictly regulated in relation not only to the carrier but also to the other color toners. More specifically, each color toner is strictly controlled with respect to a particle size distribution, freeness from agglomeration, melting characteristics including heat-absorption peaks and apparent viscosity on melting, chromaticity, triboelectric chargeability and optical toner concentration detection characteristic. Because of the strict regulation of these various parameters, the resultant multi-color toner or developer system shows excellent performances at every stage of multi-color electrophotography including development, transfer and fixing (color-mixing) for a long period of successive copying.
    • 提供了黄色,品红色,青色和黑色的四色调色剂和分别与适用于多色电子照相复印的树脂涂覆的铁氧体载体组合的四色调色剂的四种双组分显影剂。 四色调色剂中的每一种都不仅与载体相关,而且与其他颜色调色剂有关。 更具体地说,每种彩色调色剂都是相对于粒度分布,结块游离度,包括热吸收峰的熔融特性和熔融时的表观粘度,色度,摩擦带电性和光调色剂浓度检测特性来严格控制的。 由于这些各种参数的严格调节,所得到的多色调色剂或显影剂系统在多色电子照相术的每个阶段显示出优异的性能,包括长时间连续复制的显影,转印和定影(色混合)。