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1. (US20080304864) Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus

官庁 : アメリカ合衆国
出願番号: 12179152 出願日: 24.07.2008
公開番号: 20080304864 公開日: 11.12.2008
特許番号: 7655370 特許付与日: 02.02.2010
公報種別: B2
PCT 関連事項: 出願番号:JP08055611 ; 公開番号: クリックしてデータを表示
IPC:
G03G 15/00
G 物理学
03
写真;映画;光波以外の波を使用する類似技術;電子写真;ホログラフイ
G
エレクトログラフィー;電子写真;マグネトグラフィー
15
帯電像を用いる電子写真法用の装置
出願人: Canon Kabushiki Kaisha
発明者: Kitamura Wataru
Hirano Hidetoshi
Okuda Atsushi
Ogaki Harunobu
代理人: Fitzpatrick, Cella, Harper & Scinto
優先権情報: 2007080967 27.03.2007 JP
発明の名称: (EN) Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus
要約: front page image
(EN)

Provided is an electrophotographic photosensitive member in which friction memory does not easily occur, and a process cartridge and an electrophotographic apparatus which have the electrophotographic photosensitive member. The electrophotographic photosensitive member having a photosensitive layer has a surface layer having a plurality of depressed portions which are independent from one another, where the minor axis diameter of the depressed portions is Rpc and the depth indicating the distance between the innermost part of a depressed portion and the opening surface thereof is Rdv, the depressed portions have a ratio of depth to minor axis diameter (Rdv/Rpc) on a surface of the photosensitive member of 1.0 or less, and the photosensitive layer has a charge transporting material with an ionization potential of 4.5 eV or more and 5.3 eV or less.


また、:
KR1020090125182EP2144120JPWO2008117806JP4739450CN101641648KR1020120031314
WO/2008/117806