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1.发明公开
公开(公告)号：EP4343443A1
公开(公告)日：2024-03-27
申请号：EP22804487.1
申请日：2022-04-19
发明人： SASAKI, Shinya
IPC分类号： G03G9/107
摘要： A carrier core material according to the present invention comprises ferrite particles, contains CaSiO 3 , and has a true density at least equal to 3.5 g/cm 3 and at most equal to 4.5 g/cm 3 . A particle strength index calculated from formula (1) is preferably at most equal to 1.5% by volume. (1): Particle strength index = V2-V1 (In the formula, V1: cumulative value (% by volume) of particle size 22 µm or less in cumulative particle size distribution of carrier core material before crushing test, and V2: cumulative value (% by volume) of particle size 22 µm or less in cumulative particle size distribution of carrier core material after crushing test) Crushing test conditions: 30 g of carrier core material crushed using a sample mill for 60 seconds at a rotational speed of 14000 rpm.
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公开(公告)号：EP3366811A1
公开(公告)日：2018-08-29
申请号：EP16857141.2
申请日：2016-07-19
CPC分类号： C23C24/04 , B22F1/00 , B22F1/02 , B22F1/025 , B22F2301/35 , B22F2301/40 , B22F2303/01 , B22F2303/30 , B22F2304/10 , B22F2304/15 , C22C18/00 , C22C18/04 , C22C38/00 , C23C2/06 , C23C2/34
摘要： In a projection material for mechanical plating according to the present invention, a steel particle is used as a core, and the surrounding surface thereof is coated with a zinc alloy in which the content of Al is more than 5% by mass but equal to or less than 16% by mass, the content of Mg is equal to or more than 5.5% by mass but equal to or less than 15% by mass and the remaining portion is Zn and an impurity, and the content of Fe is equal to or more than 3% by mass but equal to or less than 80% by mass. In this way, the corrosion resistance of a zinc-based coating itself formed in mechanical plating is remarkably enhanced without dependence on protective coating formation treatment such as chromate treatment.
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3.发明公开FERRITE PARTICLES AND ELECTROPHOTOGRAPHIC DEVELOPER CARRIER USING SAME, ELECTROPHOTOGRAPHIC DEVELOPER, AND METHOD FOR PRODUCING FERRITE PARTICLES 审中-公开铁氧体颗粒和载体，电力照相显影剂SO，电子照相显影剂及其制造方法铁氧体
公开(公告)号：EP2980023A4
公开(公告)日：2016-12-14
申请号：EP14775103
申请日：2014-02-26
发明人： KAWAUCHI TAKESHI , OGAWA SHOU , MATSUDA YUKIHIRO
IPC分类号： C01G49/00 , C04B35/26 , C04B35/626 , G03G9/107 , G03G9/113
CPC分类号： G03G9/107 , C01G49/0036 , C01G49/0072 , C01P2004/03 , C01P2004/61 , C01P2006/10 , C01P2006/42 , C04B35/26 , C04B35/6261 , C04B35/62645 , C04B35/62655 , C04B35/62695 , C04B35/64 , C04B2235/3213 , C04B2235/3262 , C04B2235/3263 , C04B2235/3274 , C04B2235/424 , C04B2235/442 , C04B2235/5436 , C04B2235/5445 , C04B2235/6567 , C04B2235/6583 , C04B2235/6584 , C04B2235/77 , C04B2235/80 , C04B2235/95 , C04B2235/963 , G03G9/0806 , G03G9/1136
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4.发明公开FERRITE PARTICLES AND ELECTROPHOTOGRAPHIC DEVELOPER CARRIER USING SAME, ELECTROPHOTOGRAPHIC DEVELOPER, AND METHOD FOR PRODUCING FERRITE PARTICLES 审中-公开铁氧体颗粒和使用该载体的电子照相显影剂载体，电子照相显影剂和生产铁氧体颗粒的方法
公开(公告)号：EP2980023A1
公开(公告)日：2016-02-03
申请号：EP14775103.6
申请日：2014-02-26
发明人： Kawauchi Takeshi , Ogawa Shou , Matsuda Yukihiro
CPC分类号： G03G9/107 , C01G49/0036 , C01G49/0072 , C01P2004/03 , C01P2004/61 , C01P2006/10 , C01P2006/42 , C04B35/26 , C04B35/6261 , C04B35/62645 , C04B35/62655 , C04B35/62695 , C04B35/64 , C04B2235/3213 , C04B2235/3262 , C04B2235/3263 , C04B2235/3274 , C04B2235/424 , C04B2235/442 , C04B2235/5436 , C04B2235/5445 , C04B2235/6567 , C04B2235/6583 , C04B2235/6584 , C04B2235/77 , C04B2235/80 , C04B2235/95 , C04B2235/963 , G03G9/0806 , G03G9/1136
摘要： There are provided ferrite particles in which Mn ferrite is used as the main phase and which contain Sr ferrite, where the degree of projections and recesses in the surface of the particles falls within a range of 2.5 to 4.5 µm, and the standard deviation of the size of grains appearing on the surface of the particles falls within a range of 1.5 to 3.5 µm. In this way, a coating resin is left on the surface of the particles even after long-term use and thus a decrease in the charging property is reduced.
摘要翻译： 提供了其中使用Mn铁氧体作为主相并且包含Sr铁氧体的铁氧体颗粒，其中颗粒表面中的凹凸程度落在2.5至4.5μm的范围内，并且其标准偏差 出现在颗粒表面上的颗粒尺寸落入1.5至3.5μm的范围内。 这样，即使在长期使用后，涂层树脂仍残留在颗粒表面上，因此充电性能下降。
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5.发明公开FERRITE PARTICLES, ELECTROPHOTOGRAPHY CARRIER USING SAME, AND ELECTROPHOTOGRAPHY DEVELOPER 有权铁氧体颗粒，其电子照相载体和电子照相显影剂
公开(公告)号：EP2690499A4
公开(公告)日：2014-08-27
申请号：EP12761390
申请日：2012-03-19
发明人： YAMADA TOMOYA , IIDA TOMOHIDE
CPC分类号： G03G9/107 , G03G9/1075 , G03G9/113 , G03G9/1132 , G03G9/1136
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6.发明授权CARRIER CORE MATERIAL FOR ELCTROPHOTOGRAPHIC DEVELOPING AGENT, PROCESS FOR PRODUCING THE CORE MATERIAL, CARRIER FOR ELCTROPHOTOGRAPHIC DEVELOPING AGENT, AND ELECTROPHOTOGRAPHIC DEVELOPING AGENT. 有权载体芯材电发展的感光介质，METHOD FOR核材料的载体电照相显影水利电力照相显影资金的生产
公开(公告)号：EP2133750B1
公开(公告)日：2014-03-05
申请号：EP08738926.8
申请日：2008-03-26
发明人： YAMADA, Tomoya , FUJITA, Isao , AIKI, Yoshiaki
CPC分类号： G03G9/0804 , G03G9/0815 , G03G9/0819 , G03G9/08782 , G03G9/10 , G03G9/107 , G03G9/1075 , G03G9/113
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7.发明授权CARRIER CORE MATERIAL FOR ELECTROPHOTOGRAPH DEVELOPMENT, CARRIER FOR ELECTROPHOTOGRAPH DEVELOPMENT AND PROCESS FOR PRODUCING THE SAME, AND ELECTROPHOTOGRAPH DEVELOPING AGENT 有权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：EP1990684B1
公开(公告)日：2013-07-31
申请号：EP06810470.2
申请日：2006-09-25
发明人： NAKAO, Ryusuke , KAWAUCHI, Takeshi
CPC分类号： G03G9/1075 , G03G9/10 , G03G9/1136
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8.发明公开CARRIER CORE FOR ELECTRONOGRAPH DEVELOPER, CARRIER FOR ELECTRONOGRAPH DEVELOPER, AND ELECTRONOGRAPH DEVELOPER 有权电子发展商的载体核心，电子发展商的载体，以及电子发展商
公开(公告)号：EP2584410A1
公开(公告)日：2013-04-24
申请号：EP12756991.1
申请日：2012-03-01
CPC分类号： G03G9/10 , G03G9/107 , G03G9/1075 , G03G9/113 , G03G9/1131 , G03G9/1136
摘要： The carrier core particles for electrophotographic developer have a volume size distribution with a median particle size ranging from 30 µm to 40 µm, the ratio of the carrier core particles having a diameter of 22 µm or lower in the volume size distribution is from 1.0% to 2.0%, the ratio of the carrier core particles having a diameter of 22 µm or lower in a number size distribution is 10% or lower, and the magnetization of the carrier core particles in an external magnetic field of 1000 Oe is from 50 emu/g to 75 emu/g.
摘要翻译： 用于电子照相显影剂的载体芯颗粒具有中值粒径为30μm至40μm的体积尺寸分布，体积粒度分布中直径为22μm或更小的载体芯颗粒的比例为1.0％至 2.0％时，粒径分布中的直径为22μm以下的载体芯材的比例为10％以下，1000Oe的外部磁场中的载体芯材的磁化强度为50emu / g至75emu / g。
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9.发明公开CARRIER CORE MATERIAL FOR ELECTROPHOTOGRAPHIC DEVELOPER, CARRIER FOR ELECTROPHOTOGRAPHIC DEVELOPER, ELECTROPHOTOGRAPHIC DEVELOPER, AND METHOD FOR PRODUCING CARRIER CORE MATERIAL FOR ELECTROPHOTOGRAPHIC DEVELOPER 有权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：EP2581791A1
公开(公告)日：2013-04-17
申请号：EP11795497.4
申请日：2011-05-17
发明人： KAWAUCHI, Takeshi
CPC分类号： G03G9/1132 , G03G9/10 , G03G9/107 , G03G9/1075 , G03G9/113
摘要： The carrier core particles for electrophotographic developer include a core composition expressed by a general formula Fe 3 O 4 as a main ingredient and 30 ppm to 400 ppm Na. Such carrier core particles can reduce environmental dependency thereof, while optimizing the resistivity.
摘要翻译： 用于电子照相显影剂用载体芯颗粒包括由通式的Fe 3 O 4作为主要成分和30ppm至400ppm的Na过表达的芯组合物。 搜索载体芯颗粒可减少环境依存性它们，同时优化了电阻率。
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10.发明公开CARRIER CORE MATERIAL FOR ELECTROPHOTOGRAPHIC DEVELOPING AGENT, CARRIER FOR ELECTROPHOTOGRAPHIC DEVELOPING AGENT, AND ELECTROPHOTOGRAPHIC DEVELOPING AGENT 有权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：EP2555056A1
公开(公告)日：2013-02-06
申请号：EP11765547.2
申请日：2011-03-29
发明人： KAWAUCHI, Takeshi , OGAWA, Sho
CPC分类号： G03G9/107 , G03G9/10 , G03G9/1075 , G03G9/1132
摘要： A carrier core particle for an electrophotographic developer includes a core composition expressed by a general formula: Mn x Fe 3-x O 4+y (0
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