专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

51. 发明专利

JP2008070663A Electrophotographic toner and electrophotographic developer, and image forming apparatus 有权
标题翻译：电子显微镜和电子显微镜，图像形成装置
公开(公告)号：JP2008070663A
公开(公告)日：2008-03-27
申请号：JP2006250116
申请日：2006-09-14
申请人： Sharp Corp , シャープ株式会社
发明人： ONDA YUTAKA , YAMAMOTO YOSHINORI , SUZUKI MASARO
IPC分类号： G03G9/08 , G03G9/10
CPC分类号： G03G9/0827 , G03G9/0819 , G03G9/10 , G03G9/107 , G03G9/113
摘要： PROBLEM TO BE SOLVED: To provide an electrophotographic toner which achieves rapid charge rise, has excellent cleanability and is capable of forming a high-quality image of high definition and high density. SOLUTION: The toner satisfies a toner enveloping degree ä(L1-L2)/L2}×100 of 2.0-3.0, wherein L1 is the perimeter of a projected image of a toner particle 1 including a binder resin and a colorant; and L2 is the length of the envelope 5 of the projected image of the toner particle 1. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了提供实现快速电荷升高的电子照相调色剂，具有优异的可清洁性，并且能够形成高清晰度和高密度的高质量图像。调色剂满足2.0-3.0的调色剂包封度ä（L1-L2）/ L2}×100，其中L1是包括粘合剂树脂和着色剂的调色剂颗粒1的投影图像的周长; L2是调色剂颗粒1的投影图像的信封5的长度。版权所有（C）2008，JPO＆INPIT

52. 发明专利

JP2007271662A Resin coated ferrite carrier for electrophotography, method for manufacturing the same and electrophotographic developer 有权
标题翻译：用于电泳的树脂涂覆铁氧体载体，其制造方法和电子显影开发
公开(公告)号：JP2007271662A
公开(公告)日：2007-10-18
申请号：JP2006093675
申请日：2006-03-30
申请人： Powdertech Co Ltd , パウダーテック株式会社
发明人： NIIMURA KAZUMORI , KAYAMOTO KANEO
IPC分类号： G03G9/107 , G03G9/10 , G03G9/113
CPC分类号： G03G9/113 , G03G9/10 , G03G9/107 , G03G9/1075 , G03G9/1131
摘要： PROBLEM TO BE SOLVED: To provide a resin coated ferrite carrier for electrophotography which is small in particle diameter and spherical, has a sharp particle size distribution, causes less carrier scattering, and ensures less change in charge amount and resistance in long-term repetition when used for a developer, and also to provide a method for manufacturing the same, and an electrophotographic developer using the resin coated ferrite carrier.
SOLUTION: The resin coated ferrite carrier for electrophotography is obtained by coating carrier core material particles with a resin, wherein the product of the apparent density ρ (g/cm
3 ), average particle diameter d (μm) and BET specific surface area S (m
2 /g) of the carrier core material particles satisfies the condition of the expression. The method for manufacturing the same and the electrophotographic developer are also provided.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了提供粒径小且球形的用于电子照相的树脂涂覆的铁氧体载体，具有尖锐的粒度分布，导致较少的载流子散射，并且确保电荷量的变化和长时间的电阻，用于显影剂时的长期重复，以及提供其制造方法，以及使用树脂涂覆的铁氧体载体的电子照相显影剂。解决方案：用于电子照相的树脂涂覆的铁氧体载体通过用树脂涂覆载体芯材料颗粒而得到，其中表观密度ρ（g / cm 3），平均粒径d （μm）和载体芯材料颗粒的BET比表面积S（m 2 / g）满足表达式的条件。还提供了其制造方法和电子照相显影剂。版权所有（C）2008，JPO＆INPIT

53. 发明专利

JPWO2005062132A1 電子写真現像剤用樹脂被覆キャリア及びその製造方法、並びに該樹脂被覆キャリアを用いた電子写真現像剤有权
公开(公告)号：JPWO2005062132A1
公开(公告)日：2007-07-19
申请号：JP2005516433
申请日：2004-11-25
申请人：パウダーテック株式会社
发明人：茅本　金男 , 金男茅本 , 尋敬北条 , 尋敬北条 , 俊夫本庄 , 俊夫本庄
IPC分类号： G03G9/107 , G03G9/113
CPC分类号： G03G9/107 , G03G9/113
摘要：小粒径で、高い球状度及び表面均一度を有し、また標準偏差の小さいキャリア芯材を用いた樹脂被覆フェライトキャリア及びその製造方法、並びに該樹脂被覆フェライトキャリアを用いた高画質で、耐久性に優れた電子写真現像剤を提供することを目的とする。この目的を達成するため、平均粒径20〜50μm、表面均一度90%以上、平均球状率1〜1.3、かつ球状率標準偏差0.15以下の球状フェライト粒子からなることを特徴とする電子写真現像剤用樹脂被覆キャリア及びその製造方法、並びに該樹脂被覆キャリアを用いた電子写真現像剤を採用する。

54. 发明专利

JP3788726B2 Two-component developer and an image forming apparatus using the same 有权
公开(公告)号：JP3788726B2
公开(公告)日：2006-06-21
申请号：JP2000207557
申请日：2000-07-07
申请人：パウダーテック株式会社 , 富士ゼロックス株式会社
发明人：安成中村 , 祐二佐藤 , 弘道小林 , 剛板越 , 善道片桐 , 聖次郎石丸
IPC分类号： G03G9/113 , C08L83/08 , G03G9/08 , G03G9/083 , G03G9/087 , G03G9/10 , G03G9/107
CPC分类号： G03G9/08755 , G03G9/0819 , G03G9/083 , G03G9/0836 , G03G9/0838 , G03G9/10 , G03G9/107 , G03G9/113 , G03G9/1136
摘要： There is disclosed a two-component developing agent for use in an mage formation based on electrophotography, which has high developability even at a high speed printing and good developability in the case of the image formation for a long period of time. The two-component developing agent includes a carrier comprising a magnetic particle and an insulating toner. A surface of the magnetic particle is coated with at least a resin. A mean particle size of the magnetic particle is between 30 and 90 mum and an aggregation degree of said carrier is between 2 and 15%.

55. 发明专利

JP3764520B2 Toner for two-component developer 失效
公开(公告)号：JP3764520B2
公开(公告)日：2006-04-12
申请号：JP10128696
申请日：1996-04-23
申请人：コニカミノルタビジネステクノロジーズ株式会社
发明人：二美子中沢 , 一郎出水 , 義博御厨 , 博深尾 , 良和西原
IPC分类号： G03G9/08 , G03G9/083 , G03G9/087 , G03G9/097 , G03G9/10 , G03G9/107 , G03G9/113
CPC分类号： G03G9/08782 , G03G9/0819 , G03G9/0827 , G03G9/08704 , G03G9/08706 , G03G9/08711 , G03G9/09708 , G03G9/09725 , G03G9/107 , G03G9/113
摘要： A toner for two-component developing agent is provided which can prevent smearing and offsetting during copying operation, and which is not liable to fluidity decrease and chargeability deterioration. The toner contains polyethylene and polypropylene as toner waxes and incorporates a magnetic powder having a certain BET specific surface area.

56. 发明专利

JP2006091117A Image forming method and image forming apparatus 审中-公开
标题翻译：图像形成方法和图像形成装置
公开(公告)号：JP2006091117A
公开(公告)日：2006-04-06
申请号：JP2004273498
申请日：2004-09-21
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： OSHIMA KOICHI , SUZUKI YASUO , SUZUKI TETSUO , SASAKI MICHITAKA
IPC分类号： G03G9/113 , G03G5/07 , G03G9/08 , G03G9/10 , G03G9/107
CPC分类号： G03G5/071 , G03G5/0542 , G03G5/0546 , G03G5/0589 , G03G5/0592 , G03G5/0614 , G03G5/0668 , G03G5/1473 , G03G5/14734 , G03G5/14786 , G03G5/14791 , G03G5/14795 , G03G9/10 , G03G9/113
摘要： PROBLEM TO BE SOLVED: To provide an image forming method and apparatus using an electrophotographic photoreceptor capable of obtaining an image of high image quality, having high durability and less liable to carrier adhesion. SOLUTION: In the image forming method, the electrophotographic photoreceptor is an electrophotographic photoreceptor having a crosslinked charge transport layer formed by crosslinking a trifunctional or higher radical polymerizable monomer having no charge transport structure and a monofunctional radical polymerizable compound having a charge transport structure, and a carrier for an electrophotographic developer which a developing device possesses is a carrier comprising each magnetic core material particle and a resin layer coating the particle, wherein a weight average particle diameter Dw of the carrier is 25-45 μm, a percentage of particles having a particle diameter smaller than 44 μm in the carrier is ≥70 wt.%, a percentage of particles having a particle diameter smaller than 22 μm in the carrier is ≤7 wt.%, and a ratio Dw/Dp of the weight average particle diameter Dw to a number average particle diameter Dp of the carrier is in the range of 1-1.30. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种使用能够获得高图像质量的图像的电子照相感光体的图像形成方法和装置，具有高耐久性和对载体附着力不太好。解决方案：在成像方法中，电子照相感光体是具有交联电荷输送层的电子照相感光体，该交联电荷输送层通过交联具有电荷输送结构的三官能以上自由基聚合性单体和具有电荷输送结构的单官能自由基聚合性化合物以及显影装置所具有的电子照相显影剂用载体是载体，其包含每个磁芯材料颗粒和涂覆该颗粒的树脂层，其中载体的重均粒径Dw为25-45μm，颗粒的百分比载体中粒径小于44μm的粒径≥70重量％，载体中粒径小于22μm的颗粒的百分比≤7重量％，重均分子量Dw / Dp 载体的粒径Dw与数均粒径Dp在1-1.30的范围内。版权所有（C）2006，JPO＆NCIPI

57. 发明专利

JPWO2004031865A1 電子写真用キャリア有权
公开(公告)号：JPWO2004031865A1
公开(公告)日：2006-02-02
申请号：JP2004541249
申请日：2003-09-30
申请人：松下電器産業株式会社 , パウダーテック株式会社
发明人：湯浅　安仁 , 安仁湯浅 , 梅田　公規 , 公規梅田 , 哲也植村 , 哲也植村 , 剛板越 , 剛板越
IPC分类号： G03G9/113 , G03G9/08
CPC分类号： G03G9/1136 , G03G9/113 , G03G9/1135 , G03G9/1138
摘要：少なくともコア材の表面が樹脂で被覆された電子写真用キャリア(308)であって、被覆樹脂がフッ素変性シリコーン樹脂及びアミノシランカップリング剤を含み、これによりトナー(309)を負極性に帯電させる。これにより、高温高湿下での帯電量の低下や低温低湿下での帯電量の極端な増加がなく、被覆層の剥離による現像剤の劣化を防止し、トナーのスペント化による劣化も生じない高い耐久性のある寿命の長い電子写真用キャリアを提供する。

58. 发明专利

JP2005258031A Electrostatic latent image developing toner, electrostatic latent image developer, and image forming method 有权
标题翻译：静电图像显影剂，静电图像显影剂和图像形成方法
公开(公告)号：JP2005258031A
公开(公告)日：2005-09-22
申请号：JP2004068956
申请日：2004-03-11
申请人： Fuji Xerox Co Ltd , 富士ゼロックス株式会社
发明人： NINOMIYA MASANOBU , IGARASHI JUN , YANO TOSHIYUKI , NAKAZAWA HIROSHI
IPC分类号： G03G9/08
CPC分类号： G03G9/0827 , G03G9/0819 , G03G9/0821 , G03G9/0825 , G03G9/097 , G03G9/107 , G03G9/1075 , G03G9/113 , G03G9/1132 , G03G9/1138 , G03G9/1139
摘要： PROBLEM TO BE SOLVED: To provide an electrostatic latent image developing toner satisfying toner transferability for a long period, an electrostatic latent image developer using the same, and an image forming method. SOLUTION: The electrostatic latent image developing toner is composed of coloring particles containing at least a binder resin, a colorant and a release agent and external additives. The average circularity of the toner is ≥0.975; the central value of the arithmetic average height distribution of the toner is 0.05 to 0.12 μm; the fluctuation in the arithmetic average height is ≤35 and more preferably the value of the cumulative 90% of the arithmetic average height distribution of the toner is COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了提供长时间满足调色剂转移性的静电潜像显影调色剂，使用其的静电潜像显影剂和图像形成方法。静电潜像显影调色剂由至少含有粘合剂树脂，着色剂和脱模剂的着色颗粒和外部添加剂组成。调色剂的平均圆度≥0.975; 调色剂的算术平均高度分布的中心值为0.05〜0.12μm; 算术平均高度的波动为≤35，更优选调色剂的算术平均高度分布的累积90％的值为<0.15μm; 数均粒径的波动≤25; 圆形度波动≤2.5。静电潜像显影剂由调色剂和载体构成。图像形成方法使用上述调色剂或上述显影剂。版权所有（C）2005，JPO＆NCIPI

59. 发明专利

JP2005084690A Coated conductive carrier 有权
标题翻译：涂层导电载体
公开(公告)号：JP2005084690A
公开(公告)日：2005-03-31
申请号：JP2004259931
申请日：2004-09-07
申请人： Xerox Corp , ゼロックスコーポレイションXerox Corporation
发明人： KUMAR SAMIR , BUDNY THOMAS J , GIANNETTO BRIAN S , MOORE BRIAN E , SILENCE SCOTT M , DUGGAN MICHAEL J , BERNARD A KELLY
IPC分类号： G03G9/10 , G03G9/113
CPC分类号： G03G9/10 , G03G9/113 , Y10T428/2998 , Y10T428/31504 , Y10T428/3154 , Y10T428/31544 , Y10T428/31678 , Y10T428/31699 , Y10T428/31855 , Y10T428/31935 , Y10T428/31938
摘要： PROBLEM TO BE SOLVED: To provide carrier particles having a substantially preselected constant conductivity parameter and a wide range of preselected triboelectric charging values. SOLUTION: The carrier contains a core and a polymer coating. The coating contains a conductive polypyrrole included in a carbon black matrix; or a polyaniline included in a carbon black matrix. COPYRIGHT: (C)2005,JPO&NCIPI

60. 发明专利

JP3575203B2 An electrostatic image developer, image forming method and image forming apparatus 失效
公开(公告)号：JP3575203B2
公开(公告)日：2004-10-13
申请号：JP34754796
申请日：1996-12-26
申请人：富士ゼロックス株式会社
发明人：博中沢 , 孝史今井 , 進吉野 , 正則市村 , 由架石原 , 能史飯田 , 洋高野
IPC分类号： G03G9/08 , G03G9/087 , G03G9/09 , G03G9/097 , G03G9/113 , G03G15/08
CPC分类号： G03G9/09716 , G03G9/0819 , G03G9/08755 , G03G9/09725 , G03G9/113
摘要： The present invention provides an electrostatic image developer comprising a toner and a carrier wherein the toner includes toner particles having an average particle diameter of 3 to 9 mu m, a hydrophobic silica microparticles having a BET specific surface area of 40 to 120 m2/g, and a hydrophobic titanium compound microparticles having a BET specific surface area of 40 to 250 m2/g; and wherein the carrier is a resin coated carrier having a coating layer of a resin. The electrostatic image developer can improve the environmental dependency of charging, power fluidity, resistance to caking of a toner and reduced change in charging with time course to provide an image with an excellent image quality for a long period of time.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式