公开(公告)号：US08507169B2

公开(公告)日：2013-08-13

申请号：US13406987

申请日：2012-02-28

Applicant: Tomoko Mine ,  Mikihiko Sukeno ,  Tatsuya Nagase ,  Tomomi Oshiba ,  Hiroyuki Kozuru ,  Saburou Hiraoka ,  Yoshiyasu Matsumoto ,  Kosuke Nakamura ,  Hitomi Motani ,  Takanari Kayamori

Inventor： Tomoko Mine ,  Mikihiko Sukeno ,  Tatsuya Nagase ,  Tomomi Oshiba ,  Hiroyuki Kozuru ,  Saburou Hiraoka ,  Yoshiyasu Matsumoto ,  Kosuke Nakamura ,  Hitomi Motani ,  Takanari Kayamori

IPC: G03G9/08

CPC classification number: G03G9/1133 ,  G03G9/1138 ,  G03G9/1139

Abstract: 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.

Abstract translation: 公开了一种双组分显影剂，其包括具有附着的外部添加剂的母体调色剂颗粒和在芯颗粒的表面上设置有树脂覆盖层的载体的调色剂，其中所述树脂覆盖层包含粘合剂树脂，其包含丙烯酸树脂 并且当树脂被覆层被分成一半到芯粒子侧和表面侧时，核心粒子侧的氮元素含量​​大于表面侧的氮元素含量​​。

公开(公告)号：US20130202337A1

公开(公告)日：2013-08-08

申请号：US13756613

申请日：2013-02-01

Applicant: Aya SHIRAI ,  Asao MATSUSHIMA ,  Yoshiyasu MATSUMOTO ,  Ryuichi HIRAMOTO ,  Taiki AMEMIYA ,  Tatsuya NAGASE

Inventor： Aya SHIRAI ,  Asao MATSUSHIMA ,  Yoshiyasu MATSUMOTO ,  Ryuichi HIRAMOTO ,  Taiki AMEMIYA ,  Tatsuya NAGASE

IPC: G03G15/20

CPC classification number: G03G8/00 ,  G03G9/08797

Abstract: An image forming method includes: performing a first gloss processing and a second gloss processing. The first gloss processing includes: heating and pressing a processed body which supports a first toner layer containing at least a clear toner [X] onto a first surface of a recording material, while allowing the first toner layer to be closely adhered to a gloss processing belt; and cooling the same. The second gloss processing includes heating and pressing a processed body which supports a second toner layer containing at least a clear toner [Y] onto a second surface of the recording material, while allowing the second toner layer to be closely adhered to the gloss processing belt; and cooling the same. Here, a storage elastic modulus G′ X (150) at 150° C. of the clear toner [X] is lower than a storage elastic modulus G′ Y (150) at 150° C. of the clear toner [Y].

Abstract translation: 图像形成方法包括：执行第一光泽处理和第二光泽处理。 第一光泽处理包括：加热和加压处理体，其将至少含有透明调色剂[X]的第一调色剂层支撑在记录材料的第一表面上，同时允许第一调色剂层紧密附着于光泽处理 带; 并进行冷却。 第二光泽处理包括加热和加压处理体，其将含有至少不透明调色剂[Y]的第二调色剂层支撑在记录材料的第二表面上，同时允许第二调色剂层紧密附着到光泽处理带 ; 并进行冷却。 这里，透明调色剂[X]的150℃下的储能弹性模量G'X（150）低于透明调色剂[Y]的150℃下的储能弹性模量G'Y（150）。

公开(公告)号：US07862977B2

公开(公告)日：2011-01-04

申请号：US11695634

申请日：2007-04-03

Applicant: Makoto Kobayashi ,  Yoshiyasu Matsumoto

Inventor： Makoto Kobayashi ,  Yoshiyasu Matsumoto

IPC: G03G13/08

CPC classification number: G03G13/09 ,  G03G9/0819 ,  G03G9/09708 ,  G03G9/107 ,  G03G9/1075 ,  G03G9/1131 ,  G03G9/1138 ,  G03G2215/0119

Abstract: A method to form an image using a trickle developing system, wherein (a) the toner comprises colorant particles with a volume median diameter of 3 to 8 μm having first inorganic particles on surfaces of the colorant particles to form toner particles; (b) the carrier comprises magnetic particles with a weight average particle diameter (D4) of 20 to 40 μm having second inorganic particles on surfaces of the magnetic particles to form carrier particles; and (c) an area ratio of element (A) based on a total area of surfaces of the carrier particles is 0.5 to 3.0 area % determined by using an X-ray analysis, provided that element (A) represents one or more elements commonly contained in the first inorganic particles and in the second inorganic particles.

Abstract translation: 一种使用涓流显影系统形成图像的方法，其中（a）调色剂包含体积中值粒径为3至8μm的着色剂颗粒，其在着色剂颗粒的表面上具有第一无机颗粒以形成调色剂颗粒; （b）载体包含磁性颗粒表面上具有第二无机颗粒的重均粒径（D4）为20至40μm的磁性颗粒，以形成载体颗粒; 和（c）根据载体颗粒表面的总面积，元素（A）的面积比为0.5-3.0面积％，通过使用X射线分析确定，条件是元素（A）通常表示一种或多种元素 包含在第一无机颗粒和第二无机颗粒中。

公开(公告)号：US20050089778A1

公开(公告)日：2005-04-28

申请号：US10922518

申请日：2004-12-20

Applicant: Tatsuya Nagase ,  Meizo Shirose ,  Naohiro Hirose ,  Asao Matsushima ,  Yoshiyasu Matsumoto ,  Shiro Hirano

Inventor： Tatsuya Nagase ,  Meizo Shirose ,  Naohiro Hirose ,  Asao Matsushima ,  Yoshiyasu Matsumoto ,  Shiro Hirano

IPC: G03G9/09 ,  G03G9/08 ,  G03G15/01

CPC classification number: G03G9/0821 ,  G03G9/0825 ,  G03G9/0827 ,  G03G9/09 ,  G03G9/0926 ,  G03G2215/0103

Abstract: Disclosed is a method for forming color image, in which one of the yellow, magenta, cyan and black toners is a high water content toner, and one of the yellow, magenta, cyan and black toners is a toner low water content toner, water content of the high water content toner is 1.2 to 2.5 % by weight based on the high water content toner, and water content of the low water content toner is 0.1 to 1.2% by weight based on the low water content toner.

Abstract translation: 公开了形成彩色图像的方法，其中黄色，品红色，青色和黑色调色剂中的一种是高含水量调色剂，黄色，品红色，青色和黑色调色剂之一是调色剂低含水量调色剂，水 基于高含水量调色剂，高含水量调色剂的含量为1.2-2.5重量％，低含水量调色剂的含水量基于低含水量调色剂为0.1-1.2重量％。

公开(公告)号：US20120028186A1

公开(公告)日：2012-02-02

申请号：US13185123

申请日：2011-07-18

Applicant: Kosuke NAKAMURA ,  Hiroyuki KOZURU ,  Yoshiyasu MATSUMOTO ,  Takanari KAYAMORI ,  Junya UEDA

Inventor： Kosuke NAKAMURA ,  Hiroyuki KOZURU ,  Yoshiyasu MATSUMOTO ,  Takanari KAYAMORI ,  Junya UEDA

IPC: G03G9/107

CPC classification number: G03G9/107 ,  G03G9/113 ,  G03G9/1131 ,  G03G9/1132 ,  G03G9/1133

Abstract: 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.

Abstract translation: 公开了一种用于显影静电图像的双组分显影剂的制备方法，所述双组分显影剂包括调色剂和具有多孔磁心颗粒和树脂涂层的树脂涂布载体，其中所述多孔磁性核颗粒由多孔铁氧体材料和 在颗粒表面上具有凹坑，该方法包括以下步骤：通过干燥多孔磁性核心颗粒和橡胶颗粒的混合，用橡胶颗粒阻挡多孔磁性核颗粒的凹坑，通过形成 在其多孔磁性核颗粒上已经堵塞了孔口的树脂层，并将树脂涂覆的载体和调色剂混合。

公开(公告)号：US20110117488A1

公开(公告)日：2011-05-19

申请号：US13012127

申请日：2011-01-24

Applicant: Makoto Kobayashi ,  Yoshiaki Kobayashi ,  Yoshiyasu Matsumoto

Inventor： Makoto Kobayashi ,  Yoshiaki Kobayashi ,  Yoshiyasu Matsumoto

IPC: G03G9/083

CPC classification number: G03G9/107 ,  G03G9/1075 ,  G03G9/113 ,  G03G9/1131 ,  G03G9/1133

Abstract: An objective is to provide a carrier exhibiting stable charge providing ability in which sufficient charge can be provided to toner having a small particle diameter, and no image contamination such as fog caused by toner scattering via lack of electrification is generated. Another objective is to provide a carrier capable of maintaining a charging level of no interference for image formation even under the image forming condition at which a charging level for printing a number of prints continuously is difficult to be maintained. Disclosed is a carrier comprising a core particle made of ferrite possessing Mg and coated thereon, a resin, wherein the core particle has a ratio of the number of irregular-shaped core particles of at most 5%, based on the total number of core particles, and a surface of the core particle has grains having a maximum grain diameter of 2-5 μm.

Abstract translation: 目的是提供一种具有稳定的电荷提供能力的载体，其中可以向具有小粒径的调色剂提供足够的电荷，并且不会产生由于通过不起电而由调色剂飞散引起的图像污染。 另一个目标是提供一种即使在连续打印多个打印件的打印水平难以维持的图像形成条件下，也能够保持对图像形成无干扰的充电水平的载体。 公开了一种载体，其包含由具有Mg并且涂覆在其上的铁氧体制成的核心颗粒，树脂，其中核心颗粒具有至多5％的不规则核心颗粒的数量的比率，基于芯颗粒的总数 ，核粒子的表面具有最大粒径为2-5μm的粒子。

公开(公告)号：US20070238041A1

公开(公告)日：2007-10-11

申请号：US11695634

申请日：2007-04-03

Applicant: Makoto KOBAYASHI ,  Yoshiyasu MATSUMOTO

Inventor： Makoto KOBAYASHI ,  Yoshiyasu MATSUMOTO

IPC: G03G9/08 ,  G03G15/09

CPC classification number: G03G13/09 ,  G03G9/0819 ,  G03G9/09708 ,  G03G9/107 ,  G03G9/1075 ,  G03G9/1131 ,  G03G9/1138 ,  G03G2215/0119

Abstract: A method to form an image using a trickle developing system, wherein (a) the toner comprises colorant particles with a volume median diameter of 3 to 8 μm having first inorganic particles on surfaces of the colorant particles to form toner particles; (b) the carrier comprises magnetic particles with a weight average particle diameter (D4) of 20 to 40 μm having second inorganic particles on surfaces of the magnetic particles to form carrier particles; and (c) an area ratio of element (A) based on a total area of surfaces of the carrier particles is 0.5 to 3.0 area % determined by using an X-ray analysis, provided that element (A) represents one or more elements commonly contained in the first inorganic particles and in the second inorganic particles.

Abstract translation: 一种使用涓流显影系统形成图像的方法，其中（a）调色剂包含体积中值粒径为3至8μm的着色剂颗粒，其在着色剂颗粒的表面上具有第一无机颗粒以形成调色剂颗粒; （b）载体包括重均粒径（D4）为20〜40μm的磁性颗粒，在磁性颗粒的表面上具有第二无机颗粒以形成载体颗粒; 和（c）根据载体颗粒表面的总面积，元素（A）的面积比为0.5-3.0面积％，通过使用X射线分析确定，条件是元素（A）通常表示一种或多种元素 包含在第一无机颗粒和第二无机颗粒中。

公开(公告)号：US08148041B2

公开(公告)日：2012-04-03

申请号：US13012127

申请日：2011-01-24

Applicant: Makoto Kobayashi ,  Yoshiaki Kobayashi ,  Yoshiyasu Matsumoto

Inventor： Makoto Kobayashi ,  Yoshiaki Kobayashi ,  Yoshiyasu Matsumoto

IPC: G03G9/107

CPC classification number: G03G9/107 ,  G03G9/1075 ,  G03G9/113 ,  G03G9/1131 ,  G03G9/1133

Abstract: An objective is to provide a carrier exhibiting stable charge providing ability in which sufficient charge can be provided to toner having a small particle diameter, and no image contamination such as fog caused by toner scattering via lack of electrification is generated. Another objective is to provide a carrier capable of maintaining a charging level of no interference for image formation even under the image forming condition at which a charging level for printing a number of prints continuously is difficult to be maintained. Disclosed is a carrier comprising a core particle made of ferrite possessing Mg and coated thereon, a resin, wherein the core particle has a ratio of the number of irregular-shaped core particles of at most 5%, based on the total number of core particles, and a surface of the core particle has grains having a maximum grain diameter of 2-5 μm.

Abstract translation: 目的是提供一种具有稳定的电荷提供能力的载体，其中可以向具有小粒径的调色剂提供足够的电荷，并且不会产生由于通过不起电而由调色剂飞散引起的图像污染。 另一个目标是提供一种即使在连续打印多个打印件的打印水平难以维持的图像形成条件下，也能够保持对图像形成无干扰的充电水平的载体。 公开了一种载体，其包含由具有Mg并且涂覆在其上的铁氧体制成的核心颗粒，树脂，其中核心颗粒具有至多5％的不规则核心颗粒的数量的比率，基于芯颗粒的总数 ，核粒子的表面具有最大粒径为2-5μm的粒子。

公开(公告)号：US20100151378A1

公开(公告)日：2010-06-17

申请号：US12631965

申请日：2009-12-07

Applicant: Hiroyuki KOZURU ,  Yoshiyasu MATSUMOTO ,  Kosuke NAKAMURA ,  Futoshi KADONOME ,  Takanari KAYAMORI

Inventor： Hiroyuki KOZURU ,  Yoshiyasu MATSUMOTO ,  Kosuke NAKAMURA ,  Futoshi KADONOME ,  Takanari KAYAMORI

IPC: G03G9/08

CPC classification number: G03G9/081 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/0827 ,  G03G9/09708 ,  G03G9/09716 ,  G03G9/09725

Abstract: 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 (D50) of from 3.0 to 8.0 μm, the small particles (B) have an average circularity of from 0.70 to 0.92 and a number-based median diameter (D50) of from 0.15 to 0.60 times that of the toner particles (A), and the surface energy of the toner particles (A) is different from that of the small particles (B).

Abstract translation: 公开了一种图像形成方法中使用的调色剂，其包括以下步骤：将形成在感光体上的调色剂的图像转印到记录片材上，并除去任何感光体上残留的残留调色剂，中间转印部件和二次转印 所述调色剂至少包含调色剂颗粒（A）和小颗粒（B），其中所述调色剂颗粒（A）的平均圆形度为0.93至0.99，并且基于数量的中值粒径（D50）为 3.0〜8.0μm的小粒子（B）的平均圆形度为0.70〜0.92，数均中值粒径（D50）为调色剂颗粒（A）的中值粒径的0.15〜0.60倍，表面能 的调色剂颗粒（A）与小颗粒（B）的不同。

公开(公告)号：US20080038654A1

公开(公告)日：2008-02-14

申请号：US11779765

申请日：2007-07-18

Applicant: Hiroshi YAMAZAKI ,  Ken OHMURA ,  Yoshiyasu MATSUMOTO ,  Shiro HIRANO

Inventor： Hiroshi YAMAZAKI ,  Ken OHMURA ,  Yoshiyasu MATSUMOTO ,  Shiro HIRANO

IPC: G03G9/00

CPC classification number: G03G9/107 ,  G03G9/08704 ,  G03G9/08782 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/10 ,  G03G9/1075 ,  G03G9/113

Abstract: An electrophotographic developer comprising a toner and a carrier is disclosed. The contains a toner binder resin, a colorant and a releasing agent, and a carrier contains magnetic particles dispersed in a carrier binder resin, wherein the releasing agent contains a first releasing agent component of a linear-chain hydrocarbon compound having a melting point of from 50 to 100° C. in a ratio of from 10 to 95% by weight and a second releasing agent component comprising a branched-chain structure hydrocarbon compound having a melting point of from 50 to 100° C. in a ratio of from 5 to 90% by weight, and the carrier has a shape coefficient SF-1 of from 1.0 to 1.2, a shape-coefficient SF-2 of from 1.1 to 2.5 and a volume based median diameter of from 10 to 100 μm.

Abstract translation: 公开了包含调色剂和载体的电子照相显影剂。 含有调色剂粘合剂树脂，着色剂和脱模剂，载体包含分散在载体粘合剂树脂中的磁性颗粒，其中脱模剂含有熔点为以下的直链烃化合物的第一脱模剂组分 50〜100℃，比例为10〜95重量％，第二脱模剂成分，其含有熔点为50〜100℃的支链结构烃化合物，比例为5〜 90重量％，载体的形状系数SF-1为1.0〜1.2，形状系数SF-2为1.1〜2.5，体积基准中值粒径为10〜100μm。