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公开(公告)号：US20050277049A1
公开(公告)日：2005-12-15
申请号：US11145575
申请日：2005-06-06
申请人： Takeshi Katoh , Yoshinori Urata , Kazuya Korematu
发明人： Takeshi Katoh , Yoshinori Urata , Kazuya Korematu
CPC分类号： G03G9/1139 , G03G9/1075 , G03G9/1131 , G03G9/1136
摘要： A carrier excellent in durability and environmental stability and a two-component developing agent is provided. In the carrier, a core material is coated with a resin, and the coating resin is formed on the core material such that the coating resin comes to be in an amount of 5% by weight to 20% by weight on the basis of a weight of the core material, thereby enhancing durability. Further, the coating resin contains fine particles of titanium oxide, thereby enhancing environmental stability.
摘要翻译： 提供耐久性和环境稳定性优异的载体和双组分显影剂。 在载体中，芯材涂覆有树脂，涂层树脂形成在芯材上，使得涂布树脂的重量为5重量％至20重量％ 的芯材，从而提高耐久性。 此外，涂层树脂含有细小的氧化钛颗粒，从而提高了环境稳定性。
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公开(公告)号：US5358819A
公开(公告)日：1994-10-25
申请号：US47649
申请日：1993-04-13
CPC分类号： G03G9/107
摘要： The object of the invention is to provide a developer for electrophotography which may present stable charging properties and image density after a prolonged period of copying operations as well as have a long life. The object can be achieved by providing a developer for electrophotography, compounded of: a toner component; and a carrier component prepared from a ferrite powder mixture in total of 100 parts, consisting of 10 to 90 parts by weight of a ferrite powder having a specific surface range of 200 to 230 cm.sup.2 /g, and 10 to 90 parts by weight of a ferrite powder having a specific surface range of more than 230 to 300 cm.sup.2 /g.
摘要翻译： 本发明的目的是提供一种用于电子照相术的显影剂，其可以在长时间的复印操作之后呈现稳定的充电性能和图像密度，并且具有长的使用寿命。 该目的可以通过提供一种用于电子照相的显影剂来实现，该显影剂复合为：调色剂组分; 和由铁氧体粉末混合物共计100份制成的载体组分，由10至90重量份的比表面积为200至230平方厘米/克的铁氧体粉末和10至90重量份的 比表面积大于230〜300cm2 / g的铁氧体粉末。
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