US Patent No: 5,521,043

Number of patents in Portfolio can not be more than 2000

Hydroxygallium phthalocyanine pigments with block copolymer binders

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Importance

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Abstract

A photoconditive imaging member comprised of a supporting substrate, a photogenerating layer comprised of a photogenerating pigment, or photogenerating pigments dispersed in a polystyrene/poly(methacrylic acid) (A.sub.n -B.sub.m) block copolymer wherein A is the anchoring block, B is the steric stabilizing block, and n and m represent the number of segments; and a charge transport layer.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
XEROX CORPORATIONSTAMFORD, CT17094

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Allen, Charles G Waterdown, CA 8 142
Baranyi, Giuseppa Mississauga, CA 38 385
Hamer, Gordon K Mississauga, CA 44 955
Hsiao, Cheng-Kuo Mississauga, CA 60 731
Listigovers, Nancy A Oakville, CA 8 80
Martin, Trevor I Burlington, CA 26 513

Cited Art

Patent Info (Count) # Cites Year
 
XEROX CORPORATION (4)
4,265,990 Imaging system with a diamine charge transport material in a polycarbonate resin 637 1978
5,384,222 Imaging member processes 7 1993
5,384,223 Photoconductive imaging members with polymer binders 5 1993
5,407,766 Hydroxygallium phthalocyanine photoconductive imaging members 15 1993

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
XEROX CORPORATION (18)
6,015,645 Photoconductive imaging members 46 1998
6,913,863 Photoconductive imaging members 125 2003
6,824,940 Photoconductive imaging members 12 2003
6,967,069 Photoconductive imaging members 3 2003
7,018,758 Photoconductive imaging members 3 2003
7,166,397 Imaging members 4 2003
7,045,262 Photoconductive imaging members 2 2004
7,297,456 Photoconductors containing crosslinked polycarbonate polymers 0 2004
7,229,732 Imaging members with crosslinked polycarbonate in charge transport layer 1 2004
7,144,971 Polycarbonates and photoconductive imaging members 0 2004
7,592,111 Imaging member 1 2004
7,354,685 Photoconductive imaging members 0 2005
7,001,700 Photoconductive imaging members 1 2005
7,314,694 Photoconductive imaging members 0 2005
7,378,204 Photoconductive member 1 2005
7,666,560 Imaging member 0 2005
7,771,909 Titanyl phthalocyanine photoconductors 0 2006
7,291,428 Imaging members 1 2006