US Patent No: 7,166,397

Number of patents in Portfolio can not be more than 2000

Imaging members

ALSO PUBLISHED AS: 20050136349

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Importance

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Abstract

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An electrophotographic imaging member having a charge generating layer and a charge transport layer overlayed thereon is provided. The charge transport layer has a lower surface and an upper surface, wherein the lower surface is in contiguous contact with the charge generating layer. The charge transport layer comprises a film forming polymer binder and a charge transport compound molecularly dispersed or dissolved therein to form a solid solution. The concentration of the charge transport compound in the charge transport layer decreases from the lower surface to the upper surface. In such a construction, the resulting charge transport layer exhibits enhanced cracking suppression, improved wear resistance, excellent imaging member electrical performance, and improved copy print out quality.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
XEROX CORPORATIONSTAMFORD, CT13502

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ahuja, Suresh K Webster, NY 15 142
Horgan, Anthony M Pittsford, NY 101 1123
Mishra, Satchidanand Webster, NY 126 1065
Murti, Dasarao K Mississauga, CA 48 922
Yu, Robert C U Webster, NY 191 2399

Cited Art Landscape

Patent Info (Count) # Cites Year
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (1)
* 4,889,784 Organic photoconductors with improved wear 15 1988
 
XEROX CORPORATION (16)
4,299,897 Aromatic amino charge transport layer in electrophotography 113 1980
4,286,033 Trapping layer overcoated inorganic photoresponsive device 218 1980
4,338,387 Overcoated photoreceptor containing inorganic electron trapping and hole trapping layers 221 1981
4,439,507 Layered photoresponsive imaging device with photogenerating pigments dispersed in a polyhydroxy ether composition 114 1982
4,587,189 Photoconductive imaging members with perylene pigment compositions 327 1985
4,664,995 Electrostatographic imaging members 182 1985
* 5,013,624 Glassy metal oxide layers for photoreceptor applications 14 1989
* 5,055,366 Polymeric protective overcoatings contain hole transport material for electrophotographic imaging members 20 1989
5,830,614 Multilayer organic photoreceptor employing a dual layer of charge transporting polymers 27 1991
5,473,064 Hydroxygallium phthalocyanine imaging members and processes 163 1993
5,521,043 Hydroxygallium phthalocyanine pigments with block copolymer binders 19 1995
6,015,645 Photoconductive imaging members 47 1998
* 5,935,748 Mechanically robust anti-curl layer 23 1998
* 6,300,027 Low surface energy photoreceptors 17 2000
* 6,780,554 Imaging member 7 2002
* 7,033,714 Imaging members 28 2003
 
SAMSUNG ELECTRONICS CO., LTD. (1)
2005/0175,363 Optical antenna and wireless optical system using the same 0 2004
 
KONICA CORPORATION (1)
* 5,798,200 Electrophotographic image forming method 26 1997
 
HENKEL IP & HOLDING GMBH (1)
* 6,893,736 Thermosetting resin compositions useful as underfill sealants 2 2002
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
MITSUBISHI CHEMICAL CORPORATION (1)
* 8,404,412 Electrophotographic photoreceptor, and image forming apparatus 0 2006
 
XEROX CORPORATION (3)
* 7,514,191 Imaging member 1 2006
* 7,745,082 Imaging member 1 2007
* 8,043,784 Imaging member and methods of forming the same 0 2008
* Cited By Examiner

Maintenance Fees

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11.5 Year Payment $7400.00 $3700.00 $1850.00 Jul 23, 2018
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