Electrophotographic photoreceptor, process cartridge, and image forming apparatus

US8974992B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8974992-B2
Application numberUS-201313871489-A
CountryUS
Kind codeB2
Filing dateApr 26, 2013
Priority dateNov 2, 2012
Publication dateMar 10, 2015
Grant dateMar 10, 2015

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  2. Abstract

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  5. First independent claim

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Abstract

Official abstract text for this publication.

Provided is an electrophotographic photoreceptor including an electroconductive substrate, an undercoat layer that is provided on the electroconductive substrate, contains a binder resin, metal oxide particles and an electron accepting compound having an acidic group and has an AC impedance of from 1×10 5 Ω to 1×10 8 Ω under the measurement condition in which a temperature is 22° C., a humidity is 50% RH, an AC voltage is ±1 V, and a frequency is 1 Hz and an AC impedance of from 1×10 3 Ω to 1×10 8 Ω under the measurement condition in which a temperature is 22° C., a humidity is 50% RH, an AC voltage is ±1 V, and a frequency is 100 Hz, and a photosensitive layer that is provided on the undercoat layer.

First claim

Opening claim text (preview).

What is claimed is: 1. An electrophotographic photoreceptor comprising: an electroconductive substrate; an undercoat layer that is provided on the electroconductive substrate, contains a binder resin, metal oxide particles and an electron accepting compound having an acidic group and has an AC impedance of from 1×10 5 Ω to 1×10 8 Ω under the measurement condition in which a temperature is 22° C., a humidity is 50% RH, an AC voltage is ±1 V, and a frequency is 1 Hz and an AC impe…

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What does patent US8974992B2 cover?
Provided is an electrophotographic photoreceptor including an electroconductive substrate, an undercoat layer that is provided on the electroconductive substrate, contains a binder resin, metal oxide particles and an electron accepting compound having an acidic group and has an AC impedance of from 1×10 5 Ω to 1×10 8 Ω under the measurement condition in which a temperature is 22° C., a humidity…
Who is the assignee on this patent?
Fuji Xerox Co Ltd
What technology area does this patent fall under?
Primary CPC classification G03G5/0609. Mapped technology areas include Physics.
When was this patent published?
Publication date Tue Mar 10 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).