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1. 发明申请

US20090092920A1 CARRIER, DEVELOPER, IMAGE FORMING METHOD AND PROCESS CARTRIDGE 有权
标题翻译：承运人，开发商，图像形成方法和过程盒
公开(公告)号：US20090092920A1
公开(公告)日：2009-04-09
申请号：US12282077
申请日：2007-03-06
申请人： Masashi Nagayama , Kimitoshi Yamaguchi , Naoki Imahashi
发明人： Masashi Nagayama , Kimitoshi Yamaguchi , Naoki Imahashi
IPC分类号： G03G9/107 , G03G13/08
CPC分类号： G03G9/0819 , G03G9/0821 , G03G9/0823 , G03G9/107 , G03G9/1131 , G03G9/1135 , G03G9/1136 , G03G9/1137 , G03G9/1139 , G03G15/20
摘要： The present invention is to provide a carrier and a developer, which have fewer occurrences of carrier adhesion and background smear, excellent granularity and longer durability. The carrier comprises the core material particles having magnetism and resin coating layer covering the core material particles, and wherein the weight average particle diameters is in the range of 22 m to 32 m, the proportion of the weight average particle diameters relative to the number average particle diameter is in the range of 1.00 to 1.20, the content of particles having a diameter of 20 m or smaller is 7% by mass, the content of carrier particles having a diameter of 36 m or smaller is in the range of 90% by mass to 100% by mass, and the proportion of the particle density of the core material particles is in the range of 85% to 100% of the true density of the core material particles.
摘要翻译：本发明提供一种载体和显影剂，其具有较少的载体粘附和背景涂片的出现，优异的粒度和更长的耐久性。载体包括具有覆盖芯材颗粒的磁性和树脂涂层的芯材颗粒，并且其中重均粒径在22μm至32μm的范围内，重均粒径相对于数均分子的比例粒径在1.00〜1.20的范围内，直径20μm以下的粒子的含量为7质量％，直径为36μm以下的载体粒子的含量为90％以下质量至100质量％，芯材颗粒的颗粒密度的比例在芯材颗粒的真密度的85％至100％的范围内。

2. 发明授权

US08039189B2 Electrophotographic developer and carrier therefor, core material particle for carrier for electrophotographic developer and production method thereof and image forming method 有权
标题翻译：电子照相显影剂及其载体，用于电子照相显影剂载体的芯材颗粒及其制备方法和成像方法
公开(公告)号：US08039189B2
公开(公告)日：2011-10-18
申请号：US11736351
申请日：2007-04-17
申请人： Kimitoshi Yamaguchi , Naoki Imahashi , Masashi Nagayama
发明人： Kimitoshi Yamaguchi , Naoki Imahashi , Masashi Nagayama
IPC分类号： G03G9/113
CPC分类号： G03G9/1075
摘要： The present invention can provide small-diameter core material particles for electro photographic carrier, the particles that can prevent occurrences of carrier adhesions and reduce toner spent, have excellent durability and cause little fluctuations in image density with a narrow particle diameter distribution, and an efficient, cost-effective production method thereof. That is, the core material particles for electro photographic carrier are particles wherein the weight average particle diameter, Dw, is in the range of 22 μm to 32 μm, the ratio of Dw to the number average particle diameter, Dp, satisfies the condition, 1
摘要翻译：本发明可以提供用于电子照相载体的小直径芯材颗粒，能够防止载体粘连发生并减少使用粉末的颗粒具有优异的耐久性，并且在窄的粒径分布下，图像密度几乎没有波动，其成本效益的生产方法。也就是说，电摄影载体的芯材粒子是重均粒径Dw在22μm〜32μm范围内的粒子，Dw与数均粒径Dp的比例满足条件， 1

3. 发明申请

US20070243482A1 ELECTROPHOTOGRAPHIC DEVELOPER AND CARRIER THEREFOR, CORE MATERIAL PARTICLE FOR CARRIER FOR ELECTROPHOTOGRAPHIC DEVELOPER AND PRODUCTION METHOD THEREOF AND IMAGE FORMING METHOD 有权
标题翻译：电子显影开发商及其承运人，用于电子显影开发商的载体的核心材料颗粒及其生产方法和图像形成方法
公开(公告)号：US20070243482A1
公开(公告)日：2007-10-18
申请号：US11736351
申请日：2007-04-17
申请人： Kimitoshi YAMAGUCHI , Naoki Imahashi , Masashi Nagayama
发明人： Kimitoshi YAMAGUCHI , Naoki Imahashi , Masashi Nagayama
IPC分类号： G03G9/113
CPC分类号： G03G9/1075
摘要： The present invention can provide small-diameter core material particles for electrophotographic carrier, the particles that can prevent occurrences of carrier adhesions and reduce toner spent, have excellent durability and cause little fluctuations in image density with a narrow particle diameter distribution, and an efficient, cost-effective production method thereof. That is, the core material particles for electrophotographic carrier are particles wherein the weight average particle diameter, Dw, is in the range of 22 μm to 32 μm, the ratio of Dw to the number average particle diameter, Dp, satisfies the condition, 1
摘要翻译：本发明可以提供用于电摄影载体的小直径芯材料颗粒，可以防止载体粘连发生并减少使用花粉的颗粒，具有优异的耐久性，并且在窄的粒径分布下产生很小的图像密度波动，具有成本效益的生产方法。也就是说，电子照相载体的芯材粒子是重均粒径Dw在22μm〜32μm的范围内的粒子，Dw与数均粒径Dp的比Dp满足条件1

4. 发明申请

US20070048652A1 Carrier and developer 审中-公开
标题翻译：运营商和开发商
公开(公告)号：US20070048652A1
公开(公告)日：2007-03-01
申请号：US11508922
申请日：2006-08-24
申请人： Naoki Imahashi , Kimitoshi Yamaguchi , Masashi Nagayama
发明人： Naoki Imahashi , Kimitoshi Yamaguchi , Masashi Nagayama
IPC分类号： G03G9/113
CPC分类号： G03G9/1075 , G03G9/1136 , G03G9/1139
摘要： The present invention provides a carrier which contains core material particles having magnetism and a coating layer on the surfaces of the core material particles; in which the particle density of the core material particles is 4.0 g/cm3 to 6.0 g/cm3, and the bulk density of the core material particles is 2.0 g/cm3 to 3.0 g/cm3; and also provides a developer using the carrier, an image forming method using the developer, an image forming apparatus using the developer, and a process cartridge using the developer.
摘要翻译：本发明提供一种载体，其含有具有磁性的芯材颗粒和在芯材颗粒的表面上的涂层; 其中芯材颗粒的颗粒密度为4.0g / cm 3至6.0g / cm 3，芯材颗粒的堆积密度为2.0g / cm 3至3.0g / cm 3; 并且还提供使用载体的显影剂，使用显影剂的图像形成方法，使用显影剂的图像形成装置和使用显影剂的处理盒。

5. 发明授权

US08728698B2 Carrier, developer, image forming method and process cartridge 有权
标题翻译：载体，显影剂，成像方法和处理盒
公开(公告)号：US08728698B2
公开(公告)日：2014-05-20
申请号：US12282077
申请日：2007-03-06
申请人： Masashi Nagayama , Kimitoshi Yamaguchi , Naoki Imahashi
发明人： Masashi Nagayama , Kimitoshi Yamaguchi , Naoki Imahashi
IPC分类号： G03G9/113 , G03G13/20 , G03G9/08 , G03G15/20
CPC分类号： G03G9/0819 , G03G9/0821 , G03G9/0823 , G03G9/107 , G03G9/1131 , G03G9/1135 , G03G9/1136 , G03G9/1137 , G03G9/1139 , G03G15/20
摘要： The present invention is to provide a carrier and a developer, which have fewer occurrences of carrier adhesion and background smear, excellent granularity and longer durability. The carrier comprises the core material particles having magnetism and resin coating layer covering the core material particles, and wherein the weight average particle diameters is in the range of 22 m to 32 m, the proportion of the weight average particle diameters relative to the number average particle diameter is in the range of 1.00 to 1.20, the content of particles having a diameter of 20 m or smaller is 7% by mass, the content of carrier particles having a diameter of 36 m or smaller is in the range of 90% by mass to 100% by mass, and the proportion of the particle density of the core material particles is in the range of 85% to 100% of the true density of the core material particles.
摘要翻译：本发明提供一种载体和显影剂，其具有较少的载体粘附和背景涂片的出现，优异的粒度和更长的耐久性。载体包括具有覆盖芯材颗粒的磁性和树脂涂层的芯材颗粒，并且其中重均粒径在22μm至32μm的范围内，重均粒径相对于数均分子的比例粒径在1.00〜1.20的范围内，直径20μm以下的粒子的含量为7质量％，直径为36μm以下的载体粒子的含量为90％以下质量至100质量％，芯材颗粒的颗粒密度的比例在芯材颗粒的真密度的85％至100％的范围内。

6. 发明申请

US20060210905A1 Carrier for developer developing electrostatic image, developer including the carrier, and image forming method and process cartridge using the developer 审中-公开
标题翻译：用于显影剂显影静电图像的载体，包括载体的显影剂，以及使用显影剂的成像方法和处理盒
公开(公告)号：US20060210905A1
公开(公告)日：2006-09-21
申请号：US11373109
申请日：2006-03-13
申请人： Naoki Imahashi , Kimitoshi Yamaguchi , Masashi Nagayama
发明人： Naoki Imahashi , Kimitoshi Yamaguchi , Masashi Nagayama
IPC分类号： G03G9/113
CPC分类号： G03G9/10 , G03G9/107 , G03G9/1075 , G03G9/1136 , G03G9/1137
摘要： A carrier including a magnetic core material; and a resin layer located on the core material, wherein the carrier has a weight average particle diameter (Dw) of from 22 μm to 32 μm, a ratio Dw/Dp of greater than 1.0 and less than 1.2, wherein Dp represents a number average particle diameter of the carrier, and includes carrier particles having a particle diameter of less than 20 μm in an amount of 0 to 7% by weight, and carrier particles having a particle diameter of less than 36 μm in the carrier in an amount of 90 to 100% by weight, and the core material has a volume resistivity log (R1) of from 8.0 to 10.5 in an electric field of 50 V/mm and a ratio log (R2)/log (R3) of from 0.85 to 1.0, wherein R2 and R3 represent volume resistivities of chains of particles of the core material in electric fields of 250 V/mm and 50 V/mm, respectively.
摘要翻译：包括磁芯材料的载体; 以及位于所述芯材上的树脂层，其中所述载体的重均粒径（Dw）为22μm〜32μm，Dw / Dp比大于1.0且小于1.2，其中Dp表示数均载体的粒径，并且包括0至7重量％的粒径小于20μm的载体颗粒，载体中粒径小于36μm的载体颗粒的量为90 至100重量％，核心材料在50V / mm的电场中的体积电阻率log（R 1）为8.0〜10.5，比例log（R 2）/ log（R 3）为0.85 至1.0，其中R 2和R 3分别表示在250V / mm和50V / mm的电场中芯材料的颗粒链的体积电阻率。

7. 发明授权

US07468233B2 Developer for use in electrophotography, image forming method and process cartridge 有权
标题翻译：用于电子照相，图像形成方法和处理盒的显影剂
公开(公告)号：US07468233B2
公开(公告)日：2008-12-23
申请号：US11222775
申请日：2005-09-12
申请人： Masashi Nagayama , Kimitoshi Yamaguchi , Naoki Imahashi
发明人： Masashi Nagayama , Kimitoshi Yamaguchi , Naoki Imahashi
IPC分类号： G03G9/00
CPC分类号： G03G9/10 , G03G9/08 , G03G9/0819 , G03G9/113
摘要： Electro-photographic images having high picture quality and low carrier adhesion can be obtained using a two-component developer containing a carrier containing (A) a carrier containing a core containing a magnetic material, the core being coated with at least one resin layer; and (B) a toner; wherein the carrier has a weight average particle diameter Dw of 22-32 μm; wherein a content of carrier particles having a diameter smaller than 20 μm is 0-7% by weight based on the weight of the carrier; wherein a content of carrier particles having a diameter smaller than 36 μm is 90-100% by weight based on the weight of the carrier; wherein a weight average particle diameter Dw of the toner is 2-7 μm; and wherein a ratio Dw/Dn of the weight average particle diameter of the toner to the number average particle diameter of the toner is 1.00-1.25.
摘要翻译：可以使用含有载体的双组分显影剂获得具有高图像质量和低载体粘附性的电子照相图像，载体包含（A）含有含有磁性材料的芯的载体，芯部涂覆有至少一个树脂层; 和（B）调色剂; 载体的重均粒径Dw为22-32μm; 其中直径小于20μm的载体颗粒的含量基于载体的重量为0-7重量％其中直径小于36μm的载体颗粒的含量基于载体的重量为90-100重量％; 其中调色剂的重均粒径Dw为2-7μm; 并且其中调色剂的重均粒径与调色剂的数均粒径的比Dw / Dn为1.00-1.25。

8. 发明授权

US08067141B2 Electrographic carrier, developer, developing method, image forming apparatus, and process cartridge 有权
标题翻译：电子载体，显影剂，显影方法，图像形成装置和处理盒
公开(公告)号：US08067141B2
公开(公告)日：2011-11-29
申请号：US11897999
申请日：2007-08-31
申请人： Kimitoshi Yamaguchi , Naoki Imahashi , Masashi Nagayama
发明人： Kimitoshi Yamaguchi , Naoki Imahashi , Masashi Nagayama
IPC分类号： G03G9/113
CPC分类号： G03G9/1131 , G03G9/0819 , G03G9/10 , G03G9/107 , G03G9/1075 , G03G9/113 , G03G9/1132 , G03G9/1136
摘要： A carrier is provided including a core and a resin layer located overlying the core, wherein the carrier has a weight average particle diameter (Dw) of from 22 to 50 μm, a ratio (Dw/Dp) of the weight average particle diameter (Dw) to a number average particle diameter (Dp) of from 1 to 1.30, a shape factor SF-1 of from 100 to 120, and a shape factor SF-2 of from 100 to 120, and wherein the carrier comprises core particles satisfying the following relationship 0.52
摘要翻译：提供了一种载体，其包括芯和层叠在芯上的树脂层，其中载体的重均粒径（Dw）为22〜50μm，重均粒径（Dw / Dp））的数均粒径（Dp）为1〜1.30，形状因子SF-1为100〜120，形状因子SF-2为100〜120，其中载体包含满足以下关系0.52 <（d / D）<1.0，数量为0〜10,000ppm，其中D（μm）表示具有与芯颗粒的投影图像相同面积的圆的直径，d （μm）表示具有与芯粒子中存在的最大中空的投影图像相同面积的圆的直径。

9. 发明授权

US07763410B2 Electrophotographic developing carrier, associated apparatus and methodology of classification and application 有权
标题翻译：电子照相显影载体，相关设备和分类与应用方法
公开(公告)号：US07763410B2
公开(公告)日：2010-07-27
申请号：US10977013
申请日：2004-11-01
申请人： Kimitoshi Yamaguchi , Masashi Nagayama , Naoki Imahashi
发明人： Kimitoshi Yamaguchi , Masashi Nagayama , Naoki Imahashi
IPC分类号： G03G9/10
CPC分类号： B07B1/42 , G03G9/10
摘要： A vibrating sieve for classifying a particulate material, including an oscillator comprising a transducer; and at least two meshes layered together and located in contacting relation to a transducer, wherein a lowermost mesh receiving a vibration from the transducer transmits the vibration to an uppermost mesh to classify the particulate material fed thereon.
摘要翻译： 1.一种用于对颗粒材料进行分类的振动筛，包括：包括换能器的振荡器; 以及至少两个层叠在一起并且与换能器接触的网格，其中容纳来自换能器的振动的最下面的网将振动传递到最上面的网，以分类在其上供给的颗粒材料。

10. 发明申请

US20080063969A1 Electrographic carrier, developer, developing method, image forming apparatus, and process cartridge 有权
标题翻译：电子载体，显影剂，显影方法，图像形成装置和处理盒
公开(公告)号：US20080063969A1
公开(公告)日：2008-03-13
申请号：US11897999
申请日：2007-08-31
申请人： Kimitoshi Yamaguchi , Naoki Imahashi , Masashi Nagayama
发明人： Kimitoshi Yamaguchi , Naoki Imahashi , Masashi Nagayama
IPC分类号： G03G9/093 , G03G13/06 , G03G15/00 , G03G21/16
CPC分类号： G03G9/1131 , G03G9/0819 , G03G9/10 , G03G9/107 , G03G9/1075 , G03G9/113 , G03G9/1132 , G03G9/1136
摘要： A carrier is provided including a core and a resin layer located overlying the core, wherein the carrier has a weight average particle diameter (Dw) of from 22 to 50 μm, a ratio (Dw/Dp) of the weight average particle diameter (Dw) to a number average particle diameter (Dp) of from 1 to 1.30, a shape factor SF-1 of from 100 to 120, and a shape factor SF-2 of from 100 to 120, and wherein the carrier comprises core particles satisfying the following relationship 0.52
摘要翻译：提供了一种载体，其包括芯和层叠在芯上的树脂层，其中载体的重均粒径（Dw）为22-50μm，重均粒径（Dw / Dp））的数均粒径（Dp）为1〜1.30，形状因子SF-1为100〜120，形状因子SF-2为100〜120，其中载体包含满足按照关系式0.52 <（d / D）<1.0，数量为0〜10,000ppm，其中D（母体）表示具有与芯颗粒的投影图像相同面积的圆的直径，d （母体）表示具有与芯颗粒中存在的最大中空的投影图像相同面积的圆的直径。

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