发明名称 Carrier for developer for electrophotography
摘要 A carrier for an image developer for electrophotography, including core particles, and a coating layer covering each of the core particles, wherein the core particles have a weight average particle diameter of Dv which is 25-45 mum and a number average particle diameter of Dp which meets with the following condition:wherein the core particles have such a particle size distribution that particles having a particle diameter of less than 44 mum is at least 70% by weight and particles having a particle diameter of less than 22 mum is not more than 7% by weight.
申请公布号 US6599672(B2) 申请公布日期 2003.07.29
申请号 US20020225165 申请日期 2002.08.22
申请人 RICOH COMPANY, LTD. 发明人 YAMAGUCHI KIMITOSHI;KOTSUGAI AKIHIRO
分类号 G03G9/107;G03G9/113;(IPC1-7):G03G5/00 主分类号 G03G9/107
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