发明授权
US08475988B2 Resin-filled ferrite carrier core material for electrophotographic developer, ferrite carrier and electrophotographic developer using the ferrite carrier
有权
用于电子照相显影剂的树脂填充的铁氧体载体芯材料，使用铁氧体载体的铁素体载体和电子照相显影剂
- 专利标题： Resin-filled ferrite carrier core material for electrophotographic developer, ferrite carrier and electrophotographic developer using the ferrite carrier
- 专利标题（中）： 用于电子照相显影剂的树脂填充的铁氧体载体芯材料，使用铁氧体载体的铁素体载体和电子照相显影剂
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申请号： US13019485申请日： 2011-02-02
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公开(公告)号： US08475988B2公开(公告)日： 2013-07-02
- 发明人: Takao Sugiura , Takashi Hikichi , Hiromichi Kobayashi
- 申请人： Takao Sugiura , Takashi Hikichi , Hiromichi Kobayashi
- 申请人地址： JP Chiba
- 专利权人： Powdertech Co., Ltd.
- 当前专利权人： Powdertech Co., Ltd.
- 当前专利权人地址： JP Chiba
- 代理机构： Greenblum & Bernstein, P.L.C.
- 优先权： JP2010-024810 20100205
- 主分类号： G03G9/107
- IPC分类号： G03G9/107
摘要：
Disclosed are a resin-filled ferrite carrier core material for an electrophotographic developer, including a porous ferrite particle, wherein the composition of the porous ferrite particle is represented by the following formula (1), and part of (MgO) and/or (Fe2O3) in the following formula (1) is replaced with SrO; a ferrite carrier obtained by filling a resin in the voids of the ferrite carrier core material; and an electrophotographic developer using the ferrite carrier: ( MgO ) x ( Fe 2 O 3 ) y ( x = 10 mol % or more and less than 25 mol % y = exceeding 75 mol % and 90 mol % or less x + y = 100 mol % ) . ( 1 )
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