发明授权
- 专利标题： Charging member and electrophotographic apparatus using the same
- 专利标题（中）： 充电部件和使用其的电子照相设备
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申请号： US548221申请日： 1990-07-05
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公开(公告)号： US5017965A公开(公告)日： 1991-05-21
- 发明人: Yuichi Hashimoto , Takashi Koyama
- 申请人： Yuichi Hashimoto , Takashi Koyama
- 申请人地址： JPX
- 专利权人： Canon Kabushiki Kaisha
- 当前专利权人： Canon Kabushiki Kaisha
- 当前专利权人地址： JPX
- 优先权： JPX1-73225 19890705
- 主分类号： G03G15/02
- IPC分类号： G03G15/02 ; G03G15/16
摘要：
A charging member having a surface layer which comprises a polyurethane resin prepared from a raw material for polyurethane containing an isocyanate group and a hydroxyl group; the raw material having a molar ratio between the isocyanate (NCO) group and hydroxyl group satisfying the following relationship:1.0
公开/授权文献
- USPP5373P Geranium plant named Blues 公开/授权日：1984-12-18
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