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公开(公告)号：US20210294227A1
公开(公告)日：2021-09-23
申请号：US16943389
申请日：2020-07-30
Applicant: FUJI XEROX Co., Ltd.
Inventor： Atsushi SUGAWARA , Yosuke TSURUMI , Yasuko TORII , Yoshimasa FUJIHARA , Moegi IGUCHI
Abstract: An electrostatic image developing toner includes toner particles, an external additive A, and an external additive B. At least the external additive A is deposited on the surfaces of the toner particles. At least the external additive B is deposited on the external additive A. The external additive B includes an aggregate of two or more particles. The coverage of the toner particles with the external additive B is 3% by area or more with respect to the total surface area of the toner particles.
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2.发明申请ELECTROSTATIC CHARGE IMAGE DEVELOPING CARRIER, ELECTROSTATIC CHARGE IMAGE DEVELOPER, DEVELOPER CARTRIDGE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS 有权静电充电图像发展载体，静电充电图像开发商，开发者盒，过程盒和图像形成装置公开(公告)号：US20160062256A1
公开(公告)日：2016-03-03
申请号：US14604034
申请日：2015-01-23
Applicant: FUJI XEROX CO., LTD.
Inventor： Takeshi SHOJI , Hiroshi KAMADA , Yosuke TSURUMI
IPC: G03G9/00
CPC classification number: G03G9/1133 , G03G9/1135 , G03G15/08 , G03G2215/0132 , G03G2215/0607
Abstract: An electrostatic charge image developing carrier contains a core particle and a resin coat layer on a surface of the core particle, wherein the core particle has a BET specific surface area of from 0.05 m2/g to 0.10 m2/g, and the resin coat layer contains a nitrogen-containing (meth)acrylate resin.
Abstract translation: 静电荷图像显影载体在芯颗粒的表面上含有芯颗粒和树脂涂层，其中核心颗粒的BET比表面积为0.05m 2 / g至0.10m 2 / g，树脂涂层 含有（甲基）丙烯酸酯树脂。
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3.发明申请ELECTROSTATIC IMAGE DEVELOPING CARRIER, PROCESS OF MAKING THE SAME, ELECTROSTATIC IMAGE DEVELOPER, PROCESS CARTRIDGE, IMAGE FORMING METHOD, AND IMAGE FORMING APPARATUS 审中-公开静电图像发展载体，制备它们的方法，静电图像开发者，工艺盒，图像形成方法和图像形成装置公开(公告)号：US20140141371A1
公开(公告)日：2014-05-22
申请号：US14091200
申请日：2013-11-26
Applicant: FUJI XEROX CO., LTD.
Inventor： Yosuke TSURUMI , Rieko KATAOKA
IPC: G03G9/08
CPC classification number: G03G9/0802 , G03G9/107 , G03G9/1075 , G03G9/113 , G03G9/1139
Abstract: An electrostatic image developing carrier includes a ferrite particle that contains from about 1.0% by weight to about 14.0% by weight of elemental magnesium, wherein an average distribution ratio D of the elemental magnesium in the ferrite particle is from about 1.1 to about 2.0, wherein the average distribution ratio D is defined as an average value of D′ of at least 50 ferrite particles, wherein D′ is defined as W1/W2, wherein W1 is a weight ratio of elemental magnesium content Mg to elemental iron content Fe, Me/Fe, in a whole cross-section of the ferrite particle, and W2 is a weight ratio of elemental magnesium content Mg to elemental iron content Fe, Me/Fe, in a square, the two opposite vertices of which are located at two points on a diameter of a circle circumscribing the cross-section, each being half a radius distant from the center of the circumscribing circle.
Abstract translation: 静电图像显影载体包括铁氧体颗粒，其含有约1.0重量％至约14.0重量％的元素镁，其中铁素体颗粒中的元素镁的平均分布比D为约1.1至约2.0，其中 平均分布比D被定义为至少50个铁素体颗粒的D'的平均值，其中D'定义为W1 / W2，其中W1是元素镁含量Mg与元素铁含量Fe，Me / Fe，在铁素体颗粒的整个横截面中，W2是元素镁含量Mg与元素铁含量Fe，Me / Fe在正方形中的重量比，两个相对顶点位于两点上 围绕横截面的圆的直径，每个都是距离外接圆的中心的一半半径。
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公开(公告)号：US20210302855A1
公开(公告)日：2021-09-30
申请号：US16984741
申请日：2020-08-04
Applicant: FUJI XEROX Co., Ltd.
Inventor： Yasuko TORII , Yosuke TSURUMI , Atsushi SUGAWARA , Yoshimasa FUJIHARA , Moegi IGUCHI
Abstract: An electrostatic image developing toner includes a toner particle, an external additive A, and an external additive B. At least the external additive A is present on the surface of the toner particles. At least the external additive B is present on the external additive A. The number of peaks of the external additive B on the external additive A is 5 or more and 100 or less per 30 μm peripheral length of the toner particle, the peaks having a height from the surface of the toner particle of 80 nm or more and 250 nm or less.
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5.发明申请CARRIER FOR DEVELOPING ELECTROSTATIC IMAGE, ELECTROSTATIC IMAGE DEVELOPER, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS 审中-公开用于开发静电图像的载体，静电图像开发者，工艺盒和图像形成装置公开(公告)号：US20160026105A1
公开(公告)日：2016-01-28
申请号：US14608881
申请日：2015-01-29
Applicant: FUJI XEROX CO., LTD.
Inventor： Yosuke TSURUMI , Takeshi SHOJI , Hiroshi KAMADA
IPC: G03G9/00
CPC classification number: G03G9/1075 , G03G9/1132
Abstract: There is provided a carrier for developing an electrostatic image, comprising: magnetic particles, wherein the magnetic particles has a flow rate of 25 sec/50 g to 30 sec/50 g, and the magnetic particles satisfy an expression of 1.00≦LR/HR≦1.15, wherein HR represents a resistance under an electric field of 19200 V/cm at a temperature of 30° C. and a relative humidity of 85%, and LR represents a resistance under an electric field of 19200 V/cm at a temperature of 10° C. and a relative humidity of 15%.
Abstract translation: 提供了一种用于显影静电图像的载体，包括：磁性颗粒，其中磁性颗粒具有25秒/ 50克至30秒/ 50克的流速，磁性颗粒满足1.00＆nlE的表达式; LR / HR＆nlE; 1.15，其中HR表示在30℃的温度和85％的相对湿度下在19200V / cm的电场下的电阻，LR表示在19200V / cm的电场下的电阻 温度为10℃，相对湿度为15％。
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Patent Agency Ranking
6.发明申请ELECTROSTATIC CHARGE IMAGE DEVELOPING CARRIER, ELECTROSTATIC CHARGE IMAGE DEVELOPER, AND DEVELOPER CARTRIDGE 有权静电充电图像发展载体，静电电荷图像开发商和开发商盒公开(公告)号：US20150268578A1
公开(公告)日：2015-09-24
申请号：US14586420
申请日：2014-12-30
Applicant: FUJI XEROX CO., LTD.
Inventor： Yosuke TSURUMI , Shintaro ANNO
IPC: G03G9/00
CPC classification number: G03G9/107 , G03G9/113 , G03G9/1133 , G03G9/1139
Abstract: An electrostatic charge image developing carrier includes magnetic particles, wherein the magnetic particles have an unevenness average Sm of a surface, an arithmetic surface roughness Ra of a surface, a BET specific surface area A, and a volume average particle diameter D50v satisfying the following expressions (1) to (4): 0.5 μm≦Sm≦2.5 μm (1) 0.3 μm≦Ra≦1.2 μm (2) 0.14 m2/g≦A≦0.20 m2/g (3) 18 μm≦D50v≦32 μm. (4)
Abstract translation: 静电荷图像显影载体包括磁性颗粒，其中磁性颗粒具有表面的不均匀平均Sm，表面的算术表面粗糙度Ra，BET比表面积A和满足以下表达式的体积平均粒径D50v （1）〜（4）：0.5μm＆nlE; Sm＆nlE;2.5μm（1）0.3μm＆lt; lE; Ra＆nlE1.2μm（2）0.14m 2 / g＆lt; N＆amp; A＆amp; NlE; 0.20m 2 / g（3）18μm＆nlE; D50v＆nlE;32μm。 （4）
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公开(公告)号：US20190286000A1
公开(公告)日：2019-09-19
申请号：US16120457
申请日：2018-09-04
Applicant: FUJI XEROX CO., LTD.
Inventor： Yosuke TSURUMI , Moegi IGUCHI , Shintaro ANNO , Toshiaki HASEGAWA
Abstract: A carrier for electrostatic image development includes: resin-coated magnetic particles each including a magnetic particle and a resin layer that covers the magnetic particle; and strontium titanate particles composed of primary particles having an average circularity of 0.82 to 0.94 and an 84% cumulative circularity of more than 0.92.
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8.发明申请ELECTROSTATIC CHARGE IMAGE DEVELOPER, DEVELOPER CARTRIDGE, AND PROCESS CARTRIDGE 有权静电充电图像开发商，开发商卡座和处理盒公开(公告)号：US20160246194A1
公开(公告)日：2016-08-25
申请号：US14819939
申请日：2015-08-06
Applicant: FUJI XEROX CO., LTD.
Inventor： Yosuke TSURUMI , Motoko SAKAI , Takuro WATANABE , Masaaki USAMI
IPC: G03G9/00
CPC classification number: G03G9/0823 , G03G9/107 , G03G9/1075
Abstract: An electrostatic charge image developer includes an electrostatic charge image developing carrier containing a ferrite particle and an electrostatic charge image developing toner containing metallic particles whose resistance is from 1010 Ωcm to 1013 Ωcm in an electric field of 10,000 V/cm, wherein the electrostatic charge image developing carrier satisfies the following formula (1): 0.9≦RB/RA≦1.0 (1), wherein RA represents the resistance of the electrostatic charge image developing carrier in an electric field of 2,400 V/cm, and RB represents the resistance of the electrostatic charge image developing carrier in an electric field of 19,200 V/cm.
Abstract translation: 静电荷图像显影剂包括在10,000V / cm的电场中含有铁氧体颗粒的静电荷图像显影载体和电阻为1010Ωcm至1013Ωcm的金属颗粒的静电荷图像显影调色剂，其中静电荷图像 显影载体满足下式（1）：0.9≤RB/RA≤1.0（1）其中RA表示静电荷图像显影载体在2,400V / cm的电场中的电阻，RB表示 静电荷图像显影载体在19,200V / cm的电场中。
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公开(公告)号：US20200301302A1
公开(公告)日：2020-09-24
申请号：US16539461
申请日：2019-08-13
Applicant: FUJI XEROX CO., LTD.
Inventor： Yosuke TSURUMI , Yasuaki HASHIMOTO , Hiroaki SAIJO
Abstract: An electrostatic-image developer includes a toner and a resin-coated carrier. The toner includes toner particles including a binder resin, a release agent, and a non-ionic surfactant. The resin-coated carrier includes magnetic particles and a resin layer covering the magnetic particles. The resin-coated carrier has an absolute specific gravity of 3 g/cm3 or more and 4 g/cm3 or less.
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公开(公告)号：US20200096888A1
公开(公告)日：2020-03-26
申请号：US16262946
申请日：2019-01-31
Applicant: FUJI XEROX CO.,LTD.
Inventor： Shintaro ANNO , Yosuke TSURUMI , Takuro WATANABE , Fusako KIYONO
Abstract: An electrostatic charge image developer contains a carrier including a core and, on the core, a silicone resin-containing layer serving as a lower layer, and an acrylic resin-containing layer serving as an upper layer, or a carrier including a silicone resin-containing core and an acrylic resin-containing layer on the silicone resin-containing core; strontium titanate particles having an average primary particle size of 20 nm or more and 100 nm or less; and a toner. The percentage of a silicone resin exposed on a surface of the carrier is 0.5 area % or more and 20 area % or less.
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