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22. 发明授权

US5637431A Developer for electrophotography 失效
标题翻译：电子照相显影剂
公开(公告)号：US5637431A
公开(公告)日：1997-06-10
申请号：US670495
申请日：1996-06-27
申请人： Kenji Yamane , Tomomi Oshiba , Yuji Marukawa
发明人： Kenji Yamane , Tomomi Oshiba , Yuji Marukawa
IPC分类号： G03G9/097 , G03G9/10 , G03G9/107 , G03G9/113 , G03G15/08
CPC分类号： G03G9/09741 , G03G9/0975
摘要： Disclosed is a developer for electrophotography, comprising a carrier and toner particles, whereinsaid carrier comprises a magnetic particle having thereon a resin coated layer, said magnetic particle including Fe.sub.2 O.sub.3 and an oxide compound of at least one kind of a light metal selected from the group consisting of lithium, beryllium, sodium, magnesium, potassium, calcium and rubidium, andwherein said toner particles have a compound represented by Formula (1), wherein an amount (g) of the compound on the surface (m.sup.2) of said toner particles, is 3.0.times.10.sup.-3 to 1.2.times.10.sup.-2 g/m.sup.2. : ##STR1## wherein, R.sup.1 through R.sup.4 independently represents an alkyl group having a carbon atom number of 1 to 18 or a benzyl group, A.sup.- represents an anion, provided that at least one of R.sup.1 through R.sup.4 represents an alkyl group having a carbon atom number of 8 to 18.
摘要翻译：公开了一种电子照相用显影剂，其包括载体和调色剂颗粒，其中所述载体包括其上具有树脂涂层的磁性颗粒，所述磁性颗粒包括Fe 2 O 3和选自以下的至少一种轻金属的氧化物：由锂，铍，钠，镁，钾，钙和铷组成，其中所述调色剂颗粒具有由式（1）表示的化合物，其中所述调色剂颗粒表面上的化合物的量（g），为3.0×10 -3〜1.2×10 -2 g / m 2：式（1）其中，R 1〜R 4独立地表示碳原子数1〜18的烷基或苄基，A-表示阴离子，条件是R 1至R 4中的至少一个表示碳原子数为8至18的烷基。

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