发明授权
- 专利标题： Electrographic photosensitive member, process cartridge and electrophotographic apparatus
- 专利标题（中）： 电子感光构件，处理盒和电子照相设备
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申请号： US11572698申请日： 2005-09-05
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公开(公告)号： US07585604B2公开(公告)日： 2009-09-08
- 发明人: Harunobu Ogaki , Takakazu Tanaka , Kenichi Kaku , Akira Yoshida
- 申请人： Harunobu Ogaki , Takakazu Tanaka , Kenichi Kaku , Akira Yoshida
- 申请人地址： JP Tokyo
- 专利权人： Canon Kabushiki Kaisha
- 当前专利权人： Canon Kabushiki Kaisha
- 当前专利权人地址： JP Tokyo
- 代理机构： Fitzpatrick, Cella, Harper & Scinto
- 优先权： JP2004-264221 20040910
- 国际申请： PCT/JP2005/016681 WO 20050905
- 国际公布： WO2006/028232 WO 20060316
- 主分类号： G03G15/02
- IPC分类号： G03G15/02
摘要：
An object of the present invention is to provide an electrophotographic photosensitive member having high durability and hardly causing sensitivity decrease even if short wavelength light, particularly light having a wavelength of 380 to 450 nm is used as exposure light, and a process cartridge and an electrophotographic apparatus having the electrophotographic photosensitive member. The present invention includes an electrophotographic photosensitive member comprising a support and a photosensitive layer which is provided on the support and contains a charge generation material and a charge transport material, characterized in that the surface layer of the electrophotographic photosensitive member contains an aliphatic dicarboxylic acid polyester resin with a weight average molecular weight of 80,000 or more having a specific repeating structural unit, and a process cartridge and an electrophotographic apparatus having the electrophotographic photosensitive member.
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