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11. 发明授权

EP2555056B1 CARRIER CORE MATERIAL FOR ELECTROPHOTOGRAPHIC DEVELOPING AGENT, CARRIER FOR ELECTROPHOTOGRAPHIC DEVELOPING AGENT, AND ELECTROPHOTOGRAPHIC DEVELOPING AGENT 有权
标题翻译： CARRIER核材料电照相开发资源，支持电照相显影水利电力照相显影基金
公开(公告)号：EP2555056B1
公开(公告)日：2017-01-25
申请号：EP11765547.2
申请日：2011-03-29
申请人： DOWA Electronics Materials Co., Ltd. , Dowa IP Creation Co., Ltd.
发明人： KAWAUCHI, Takeshi , OGAWA, Sho
IPC分类号： G03G9/107 , G03G9/113 , G03G9/10
CPC分类号： G03G9/107 , G03G9/10 , G03G9/1075 , G03G9/1132

12. 发明授权

EP2573622B1 CARRIER CORE MATERIAL FOR ELECTROPHOTOGRAPHY DEVELOPER, CARRIER FOR ELECTROPHOTOGRAPHY DEVELOPER, AND ELECTROPHOTOGRAPHY DEVELOPER 有权
标题翻译： CARRIER核材料电动拍摄开发商，运营商，电力拍摄开发商和电动拍摄DEVELOPER
公开(公告)号：EP2573622B1
公开(公告)日：2016-02-03
申请号：EP11832342.7
申请日：2011-07-26
申请人： DOWA Electronics Materials Co., Ltd. , Dowa IP Creation Co., Ltd.
发明人： KAWAUCHI, Takeshi , MATSUDA, Yukihiro
IPC分类号： G03G9/107 , G03G9/113
CPC分类号： G03G9/1132 , G03G9/107 , G03G9/1075 , G03G9/113 , G03G9/1133 , G03G9/1136

13. 发明授权

EP2581791B1 CARRIER CORE MATERIAL FOR ELECTROPHOTOGRAPHIC DEVELOPER, CARRIER FOR ELECTROPHOTOGRAPHIC DEVELOPER, ELECTROPHOTOGRAPHIC DEVELOPER, AND METHOD FOR PRODUCING CARRIER CORE MATERIAL FOR ELECTROPHOTOGRAPHIC DEVELOPER 有权
标题翻译： CARRIER核材料电照相显影剂，载体电照相显影剂，用于生产载体芯材电照相显影剂的电子照相显影剂和方法
公开(公告)号：EP2581791B1
公开(公告)日：2015-08-26
申请号：EP11795497.4
申请日：2011-05-17
申请人： DOWA Electronics Materials Co., Ltd. , Dowa IP Creation Co., Ltd.
发明人： KAWAUCHI, Takeshi
IPC分类号： G03G9/10 , G03G9/107 , G03G9/113
CPC分类号： G03G9/1132 , G03G9/10 , G03G9/107 , G03G9/1075 , G03G9/113

14. 发明公开

EP2687908A1 METHOD FOR PRODUCING CARRIER CORE MATERIAL FOR ELECTROPHOTOGRAPHIC DEVELOPERS, CARRIER CORE MATERIAL FOR ELECTROPHOTOGRAPHIC DEVELOPERS, CARRIER FOR ELECTROPHOTOGRAPHIC DEVELOPERS, AND ELECTROPHOTOGRAPHIC DEVELOPER 有权
标题翻译：用于生产载体芯材电照相显影剂，载体芯材电照相显影剂，载体电照相显影剂及电子照相显影剂，
公开(公告)号：EP2687908A1
公开(公告)日：2014-01-22
申请号：EP12872894.6
申请日：2012-11-30
申请人： DOWA Electronics Materials Co., Ltd. , Dowa IP Creation Co., Ltd.
发明人： KAWAUCHI, Takeshi
IPC分类号： G03G9/107 , G03G9/113
CPC分类号： G03G9/107 , G03G9/0812 , G03G9/0819 , G03G9/10 , G03G9/1075 , G03G9/113 , G03G9/1131 , G03G9/1132
摘要： A method for manufacturing carrier core particles for electrophotographic developer that include manganese, magnesium, and iron as a core composition. The method includes a granulation step (A) of granulating a mixture of raw materials containing manganese, magnesium, and iron with a reducing agent added at a ratio of 0.10% to 1.00% by mass to a total mass of the raw materials containing manganese, magnesium, and iron, and a firing step of firing the granular material granulated in the granulation step. The firing step includes a first heating step (C) of applying heat at a constant temperature ranging from 500°C to 800°C in an atmosphere with an oxygen concentration of 1000 ppm to 15000 ppm for a predetermined period of time and a second heating step (D) of applying heat at a temperature higher than 800°C for a predetermined period of time after the first heating step.
摘要翻译：一种用于制造载体芯颗粒用于电照相显影剂方法确实包括锰，镁和铁作为核组成。该方法包括粒化含有锰，镁，并用还原剂铁以12的比例添加原料的混合物的造粒工序（A）：10％〜1：00质量％至含有锰的原料的总质量，镁和铁，并烧制在造粒步骤造粒的粒状材料的烧结步骤。烧制步骤包括在一定温度下在大气中含有的1000ppm至15,000ppm的氧气浓度范围为从500℃至800℃的预定时间段和第二加热施加热的第一加热步骤（C）在温度高于800℃的第一加热步骤后的预定时间段施加热量的步骤（D）。

15. 发明公开

EP1990684A1 CARRIER CORE MATERIAL FOR ELECTROPHOTOGRAPH DEVELOPMENT, CARRIER FOR ELECTROPHOTOGRAPH DEVELOPMENT AND PROCESS FOR PRODUCING THE SAME, AND ELECTROPHOTOGRAPH DEVELOPING AGENT 有权
标题翻译： CARRIER核材料电气摄影师发展，支持电动摄影师的开发及其生产工艺，以及电动PHOTOGRAPHER发展基金
公开(公告)号：EP1990684A1
公开(公告)日：2008-11-12
申请号：EP06810470.2
申请日：2006-09-25
申请人： DOWA Electronics Materials Co., Ltd. , Dowa IP Creation CO., LTD.
发明人： NAKAO, Ryusuke , KAWAUCHI, Takeshi
IPC分类号： G03G9/107 , G03G9/10 , G03G9/113
CPC分类号： G03G9/1075 , G03G9/10 , G03G9/1136
摘要： The present invention provides a carrier core material for use in the production of an electrophotographic developer which, even when applied, for example, to MFPs (multifunction printers), can realize stable, high-quality and high-speed development, and has a prolonged replacing life of magnetic carriers, and a method of manufacturing the same, a magnetic carrier including the carrier core material, and an electrophotographic developer manufactured from the magnetic carrier. An electrophotographic development carrier is prepared by adding resin particles, a binder, a dispersant, a wetting agent, and water to a raw material powder, wet pulverizing the mixture, drying the pulverized product to give granulated powder, calcinatng the granulated powder, and then sintering the granulated powder to prepare a carrier core material having an internally hollow structure, and coating the carrier core material with a resin. An electrophotographic developer is manufactured by mixing the electrophotographic development carrier with a toner.
摘要翻译：本发明提供的载体芯材料，在生产的电子照相显影剂其中，即使当应用于例如，至的MFP（多功能打印机），可实现稳定的高品质和高速发展的用途，并且具有延长的替换磁性载体的使用寿命，和制造方法，磁性载体包括载体芯材的方法，以及向电从磁性载体制造的照相显影剂。然后在电子照相显影载体是通过将树脂颗粒，粘合剂，分散剂，湿润剂和水到原料粉末制备，湿法粉碎该混合物，干燥所述粉碎的产物，得到粒化粉末，calcinatng的粒化粉末，以及烧结所述造粒粉末，以制备具有在内部中空结构的载体芯材，和用树脂涂覆载体芯材料。一种电子照相显影剂通过电子照相显影载体与调色剂混合来制造。

16. 发明公开

EP3605235A1 CARRIER CORE MATERIAL, CARRIER FOR ELECTROPHOTOGRAPHIC DEVELOPMENT USING SAME, AND DEVELOPER FOR ELECTROPHOTOGRAPHY USING SAME 有权
公开(公告)号：EP3605235A1
公开(公告)日：2020-02-05
申请号：EP18770973.8
申请日：2018-03-15
申请人： Dowa Electronics Materials Co., Ltd. , Dowa IP Creation Co., Ltd.
发明人： KAWAUCHI, Takeshi , ISHIKAWA, Yohei , MIYANO, Hiroyuki
IPC分类号： G03G9/107 , G03G9/113
摘要： According to the present invention, there is provided a carrier core material that is formed of ferrite particles in which 48 to 52 mass % of Fe, 16 to 22 mass % of Mn, 1.0 to 3.5 mass % of Mg and 0.05 to 0.5 mass % of Ca are included, and when an electrical resistance value with an applied voltage of 500 V in an environment (in an L/L environment) in which the temperature is 10°C and the relative humidity is 35% is R L (Ω · cm), and an electrical resistance value with an applied voltage of 500 V in an environment (in an H/H environment) in which the temperature is 30°C and the relative humidity is 70% is R H (Ω · cm), formula (1) below is satisfied. 0.1 ≤ log R L − log R H ≤ 0.3

17. 发明授权

EP2530528B1 CARRIER CORE MATERIAL FOR ELECTROPHOTOGRAPHIC DEVELOPER, PROCESS FOR PRODUCING SAME, CARRIER FOR ELECTROPHOTOGRAPHIC DEVELOPER, AND ELECTROPHOTOGRAPHIC DEVELOPER 有权
标题翻译： CARRIER核材料电照相显影剂，工艺制作，载波，那么照相显影剂，电力照相显影剂
公开(公告)号：EP2530528B1
公开(公告)日：2017-04-05
申请号：EP11736989.2
申请日：2011-01-25
申请人： DOWA Electronics Materials Co., Ltd. , Dowa IP Creation Co., Ltd.
发明人： KAWAUCHI, Takeshi
IPC分类号： G03G9/107 , C04B35/26 , G03G9/113 , G03G9/10 , C04B35/626
CPC分类号： G03G9/1075 , C04B35/2683 , C04B35/6268 , C04B35/62695 , C04B2235/3203 , C04B2235/3272 , C04B2235/3274 , C04B2235/9669 , G03G9/10 , G03G9/107

18. 发明授权

EP2610674B1 CARRIER CORE FOR ELECTROPHOTOGRAPHIC DEVELOPER, CARRIER FOR ELECTROPHOTOGRAPHIC CARRIER, AND ELECTROPHOTOGRAPHIC DEVELOPER 有权
标题翻译：载体芯，电力照相显影剂，载体电照相显影剂及电子照相显影剂，
公开(公告)号：EP2610674B1
公开(公告)日：2016-07-20
申请号：EP12763422.8
申请日：2012-03-02
申请人： DOWA Electronics Materials Co., Ltd. , Dowa IP Creation Co., Ltd.
发明人： KAWAUCHI, Takeshi , IIDA, Tomohide
IPC分类号： G03G9/107 , G03G9/113 , G03G9/10
CPC分类号： G03G9/1075 , G03G9/10 , G03G9/107 , G03G9/113

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