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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:
| 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 |
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