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Class Information
Number: 430/58.25
Name: Radiation imagery chemistry: process, composition, or product thereof > Electric or magnetic imagery, e.g., xerography, electrography, magnetography, etc., process, composition, or product > Radiation-sensitive composition or product > Having plural conductive layers > Charge transport layer > Cyclic ketone, cyclodicyanomethylene, or cyclomethylenemalonate in charge transport layer
Description: Subject matter wherein the charge transport layer contains a cyclic ketone compound, e.g., quinones O=ring=O; a polycyclic ring ketone, e.g., O= condensed rings, etc.; a cyclodicyanomethylene, e.g., (NC) 2


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
7553592 Photoreceptor with electron acceptor Jun. 30, 2009
7314692 Phenylazomethylene-cyclohexadienone derivatives comprising electron withdrawing group and electrophotographic photoreceptor comprising the derivatives Jan. 1, 2008
7220522 Electrophotographic photoreceptor, method for manufacturing the electrophotographic photoreceptor, and image forming method, image forming apparatus and process cartridge using the electrophot May. 22, 2007
7195850 Photoconductor with light fatigue additives Mar. 27, 2007
7163771 Imaging members Jan. 16, 2007
7115345 Electrophotographic imaging members Oct. 3, 2006
7083883 Polymer having stilbenquinone structure and electrophotographic photoreceptor containing the same Aug. 1, 2006
7078139 Electrophotographic photoreceptor for wet development Jul. 18, 2006
7070892 Imaging members Jul. 4, 2006
7070894 Photoconductive imaging members Jul. 4, 2006
7060405 Naphthoquinone derivative and electrophotographic photoreceptor containing the same Jun. 13, 2006
6991880 Imaging members Jan. 31, 2006
6946226 Photoconductive imaging members Sep. 20, 2005
6770410 Imaging member Aug. 3, 2004
6713220 Photoconductive members Mar. 30, 2004
6544701 REACTION PRODUCT, PROCESS FOR THE PRODUCTION THEREOF, ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR USING THE REACTION PRODUCT, ELECTROPHOTOGRAPHIC APPARATUS USING THE PHOTOCONDUCTOR, AND PROCESS CARTRID Apr. 8, 2003
6521386 Electrophotographic photoreceptor and electrophotographic image forming method and apparatus using the photoreceptor Feb. 18, 2003
6500592 Electrophotosensitive material Dec. 31, 2002
6395439 Naphthoquinone derivative and electrophotosensitive material using the same May. 28, 2002
6383698 Electrophotosensitive material using quinone derivative May. 7, 2002
6346355 Electrophotosensitive material Feb. 12, 2002
6280893 Electrophotographic photoreceptor Aug. 28, 2001
6228546 Polymer, electrophotographic photosensitive member containing the polymer, process cartridge and electrophotographic apparatus having the electrophotographic photosensitive member May. 8, 2001
6187493 Electrophotosensitive material Feb. 13, 2001
6099997 Photoconductive recording material comprising a crosslinked binder system Aug. 8, 2000
6074792 Tetraazaporphyrin pigment for use in electrophotographic photoconductor and electrophotographic photoconductor using the same Jun. 13, 2000
6063534 Nitro group-containing naphthoquinone derivatives and photosensitive material using the same for electrophotography May. 16, 2000
6027845 Electrophotography photosensitive element Feb. 22, 2000
5994012 Naphthoquinone derivative and electrophotosensitive material using same Nov. 30, 1999
5976742 Naphthoquinone derivative and electrophotographic material using the naphthoquinone derivative Nov. 2, 1999
5965063 Charge transporting material and method of preparing charge transporting particulates used therein Oct. 12, 1999
5942362 Electrophotographic photoconductor Aug. 24, 1999
5942359 Electrophotoreceptor Aug. 24, 1999
5882830 Photoconductive elements having multilayer protective overcoats Mar. 16, 1999
5795690 Electrophotographic photoreceptor, image forming apparatus and image forming process Aug. 18, 1998
5718997 Electrophotographic photoreceptor Feb. 17, 1998
5707766 Electrophotographic photosensitive material Jan. 13, 1998
5641599 Electrophotographic imaging member with improved charge blocking layer Jun. 24, 1997
5631114 Derivatives of diiminoquinones useful as electron transport agents in electrophotographic elements May. 20, 1997
5578405 Electrophotographic photoconductor containing disazo and trisazo pigments Nov. 26, 1996
5565288 Electrophotographic photoreceptor Oct. 15, 1996
5558965 Diiminoquinilidines as electron transport agents in electrophotographic elements Sep. 24, 1996
5516610 Reusable inverse composite dual-layer organic photoconductor using specific polymers May. 14, 1996
5501930 Electrophotographic photoreceptor containing enamine derivative Mar. 26, 1996
5486936 Optically addressed spatial light modulator Jan. 23, 1996
5460909 Pyrazine compound and electrophotographic photoconductor comprising the same Oct. 24, 1995
5449580 Organic photosensitive material for electrophotography Sep. 12, 1995
5437950 Electrophotographic imagimg member with enhanced photo-electric sensitivity Aug. 1, 1995
5399453 Electrophotograhic photoreceptor Mar. 21, 1995
5336577 Single layer photoreceptor Aug. 9, 1994

1 2 3


 
 
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