Invention Grant
- Patent Title: Electrophotographic photoreceptor, image-forming apparatus, and electrophotographic cartridge
- Patent Title (中): 电子照相感光体,图像形成装置和电子照像盒
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Application No.: US12301121Application Date: 2007-05-18
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Publication No.: US08404411B2Publication Date: 2013-03-26
- Inventor: Teruyuki Mitsumori , Kozo Ishio , Hiroe Fuchigami , Hiroaki Takamura , Yasunori Kawai
- Applicant: Teruyuki Mitsumori , Kozo Ishio , Hiroe Fuchigami , Hiroaki Takamura , Yasunori Kawai
- Applicant Address: JP Tokyo
- Assignee: Mitsubishi Chemical Corporation
- Current Assignee: Mitsubishi Chemical Corporation
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2006-138776 20060518; JP2006-139534 20060518; JP2006-139535 20060518; JP2006-139537 20060518; JP2006-139585 20060518; JP2006-140860 20060519; JP2006-140861 20060519; JP2006-140862 20060519
- International Application: PCT/JP2007/060218 WO 20070518
- International Announcement: WO2007/135983 WO 20071129
- Main IPC: G03G5/14
- IPC: G03G5/14

Abstract:
An electrophotographic photoreceptor having high sensitivity and hardly affected by the transfer in an electrophotographic process is provided. The electrophotographic photoreceptor includes an undercoat layer containing metal oxide particles and a binder resin and a photosensitive layer disposed on the undercoat layer, wherein the metal oxide particles have a volume average particle diameter of 0.1 μm or less and a 90% cumulative particle diameter of 0.3 μm or less which are measured by a dynamic light-scattering method in a liquid of the undercoat layer dispersed in a solvent mixture of methanol and 1-propanol at a weight ratio of 7:3, and the photosensitive layer contains a binder resin having an ester bond.
Public/Granted literature
- US20090208250A1 ELECTROPHOTOGRAPHIC PHOTORECEPTOR, IMAGE-FORMING APPARATUS, AND ELECTROPHOTOGRAPHIC CARTRIDGE Public/Granted day:2009-08-20
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