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| Number | Title | Issue Date |
| 8088540 | Photoreceptor for electrophotography An object of the invention is to provide a photoreceptor for electrophotography which has a low residual potential in an initial stage, is inhibited from increasing in residual potential, is prevented from decreasing in charge potential, undergoes little fatigue det... | 01/03/2012 |
| 7510809 | Electrophotographic photoreceptor with two layer charge transfer layer, and apparatus utilizing the same An electrophotographic photoreceptor including a charge generating layer and a charge transfer layer accumulated on a support member, the charge transfer layer including at least two layers of a support side layer and a surface side layer, wherein the support side l... | 03/31/2009 |
| 7364825 | Charge transport materials having a nitrogen-containing-heterocycle hydrazone group Improved organophotoreceptor comprises an electrically conductive substrate and a photoconductive element on the electrically conductive substrate, the photoconductive element comprising: (a) a charge transport material having the ... | 04/29/2008 |
| 7358014 | Electrophotographic organophotoreceptors with novel charge transport compounds A novel charge transport compound, a novel process using that novel compound and an organophotoreceptor includes: (a) a novel charge transport compound having the formula | 04/15/2008 |
| 7358017 | Photoconductor with ceramer overcoat A polyurethane-silica hybrid, or polyurethane-silica/silsesquioxane hybrid overcoat improves the life of the photoconductor drum without significantly altering the electrophotographic properties of the PC drum. Wear can be caused by a variety of factors, which inclu... | 04/15/2008 |
| 7354534 | Composition for overcoat layer of organophotoreceptor, organophotoreceptor manufactured by employing the same and the electrophotographic imaging apparatus containing the same A composition for an overcoat layer suitable for use in an organophotoreceptor for liquid toner, an organophotoreceptor manufactured by employing the composition and an electrophotographic imaging apparatus containing the organophotoreceptor. Since the organophotore... | 04/08/2008 |
| 7341810 | Electrophotographic photoreceptor method of manufacturing electrophotographic photoreceptor, and electrophotographic apparatus and process cartridge using electrophotographic photoreceptor An electrophotographic photoreceptor comprising a conductive substrate, an undercoat layer located overlying the conductive substrate, a photosensitive layer located overlying the undercoat layer. The photosensitive layer has a charge generation layer located overly... | 03/11/2008 |
| 7320849 | Organophotoreceptor with a charge transport material having two epoxidated-hydrazone groups Improved organophotoreceptor comprises an electrically conductive substrate and a photoconductive element on the electrically conductive substrate, the photoconductive element comprising: (a) a charge transport material having the ... | 01/22/2008 |
| 7261988 | Azine-based charge transport materials An improved organophotoreceptor comprises an electrically conductive substrate and a photoconductive element on the electrically conductive substrate, the photoconductive element comprising: (a) a charge transport material having t... | 08/28/2007 |
| 7220523 | Bridged charge transport materials having two bicyclic heterocycle hydrazones Improved organophotoreceptor comprises an electrically conductive substrate and a photoconductive element on the electrically conductive substrate, the photoconductive element comprising: (a) a charge transport material having the ... | 05/22/2007 |
| 7202004 | Electrophotographic organophotoreceptors with novel charge transport materials An organophotoreceptor that includes: (a) a charge transport compound having the formula where n is an integer between 2... | 04/10/2007 |
| 7189482 | Organophotoreceptor with charge transport compound with an azine group Improved organophotoreceptor comprises an electrically conductive substrate and a photoconductive element on the electrically conductive substrate, the photoconductive element comprising: (a) a charge transport compound having the ... | 03/13/2007 |
| 7175954 | Electrophotographic photoreceptor An electrophotographic photoreceptor comprising a support and a photosensitive layer is disclosed. The photosensitive layer contains a mixture of compounds represented by Formula (1) having different n and (Rp+Rs) is not more than 99%, wherein Rp is a ratio of a com... | 02/13/2007 |
| 7169519 | Double-layered positively-charged organic photoreceptor A double-layered positively-charged organic photoreceptor t does not suffer from contamination caused by charge transport compounds that dissolve out during coating of a charge generating layer, and in which the charge generating layer and a charge transport layer h... | 01/30/2007 |
| 7166397 | Imaging members 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... | 01/23/2007 |
| 7163771 | Imaging members A photoconductive member containing a supporting substrate; a photogenerating layer comprised of a photogenerating component, a hole transport component, an electron transport component, and a polymer binder; and a charge transport layer comprised of a charge transp... | 01/16/2007 |
| 7132209 | Organophotoreceptor with charge transport material having three arylamino groups Improved organophotoreceptor comprises an electrically conductive substrate and a photoconductive element on the electrically conductive substrate, the photoconductive element comprising: (a) a charge transport material having the ... | 11/07/2006 |
| 7118839 | Electrophotographic organophotoreceptors with novel charge transport materials An organophotoreceptor that includes: (a) a charge transport compound having the formula where n is an integer between 2... | 10/10/2006 |
| 7115345 | Electrophotographic imaging members According to the present invention is an electrophotographic imaging member which is a thin dual layer structure comprising a top layer of a durable and wear-resistant layer and a bottom layer which is bipolar. The electrophotographic imaging member of the invention... | 10/03/2006 |
| 7115346 | Multi-layered electrophotographic positively charged organic photoconductor and manufacturing method thereof A multi-layered electrophotographic positively charged organic photoconductor includes a conductive substrate, a charge transport layer formed on the conductive substrate, and a charge generating layer formed on the charge transport layer. A composition to form the ... | 10/03/2006 |
| 7108948 | Organophotoreceptor with charge transport compositions An organophotoreceptor comprises an electrically conductive substrate and photoconductive element on the electrically conductive substrate, the photoconductive element having a) a charge transport composition with the formula ... | 09/19/2006 |
| 7074532 | Linked dihydrazone-based charge transport compounds Improved organophotoreceptors comprise: (a) a charge transport compound having the formula where n is an integer from 0 ... | 07/11/2006 |
| 7074533 | Photoconductive members A photoconductive imaging member containing a supporting substrate, a photogenerating layer, a charge transport layer, and in contact with the charge transport layer a layer comprised of a polymer and a yellow dye of the formula | 07/11/2006 |
| 7045263 | Photoreceptor for electrophotography having a salt of an electron transport compound This invention relates to an improved organophotoreceptor that comprises an electrically conductive substrate; a photoconductive element comprising a charge generation compound and a salt of an electron transport compound. In some embodiments, the photoconductive el... | 05/16/2006 |
| 7041419 | Organic photoreceptor unit The present invention relates to an organic photoreceptor unit that has a conductive base unit, a charge generating layer formed on the conductive base unit, a first charge transport layer that is formed on the charge generating layer and contains a first bonding re... | 05/09/2006 |
| 7037632 | Organophotoreceptor with charge transport material with fluorenone azine groups Improved organophotoreceptor comprises an electrically conductive substrate and a photoconductive element on the electrically conductive substrate, the photoconductive element comprising: (a) a charge transport material having the ... | 05/02/2006 |
| 7029812 | Organophotoreceptor with charge transport compound having an epoxy group This invention relates to a novel organophotoreceptor that comprises an electrically conductive substrate and photoconductive element on the electrically conductive substrate, the photoconductive element having a) a novel charge tr... | 04/18/2006 |
| 7018757 | Photoconductor materials based on complex of charge generating material An electrophotographic article having a complex of charge generating material and at least one transfer material selected from the group consisting of electron transfer material and hole transfer material is formed by admixing the charge generating material, at leas... | 03/28/2006 |
| 7011917 | Organophotoreceptor with charge transport material having bis(9-fluorenone) azine groups Improved organophotoreceptor comprises an electrically conductive substrate and a photoconductive element on the electrically conductive substrate, the photoconductive element comprising: (a) a charge transport material having the ... | 03/14/2006 |
| 7008743 | Organophotoreceptor with charge transport material having a vinyl ether group Improved organophotoreceptor comprises an electrically conductive substrate and a photoconductive element on the electrically conductive substrate, the photoconductive element comprising: (a) a charge transport material having the ... | 03/07/2006 |
| 6964833 | Linked dihydrazone-based charge transport compounds Improved organophotoreceptors comprise: (a) a charge transport compound having the formula where n is an integer from 0 to 1; X is an (N,N-disubstituted)aryla... | 11/15/2005 |
| 6919154 | Photoconductive members A photoconductive imaging member containing a supporting substrate, a photogenerating layer, a charge transport layer, and in contact with the charge transport layer comprised of a polymer and a yellow dye of the formula ... | 07/19/2005 |
| 6905804 | Electrophotographic organophotoreceptors with novel charge transport materials This invention relates to a novel organophotoreceptor that includes: (a) a charge transport material comprising a fluorenone hydrazone having a) at least two fluorenone alkylsulfonylphenylhydrazone groups, b) at least two fluorenon... | 06/14/2005 |
| 6899984 | Linked dihydrazone-based charge transport compounds This invention relates to a novel organophotoreceptor that includes: (a) a charge transport compound having the formula where n is an integer from 0 to 1 inclusive; | 05/31/2005 |
| 6890693 | Organophotoreceptor with an electron transport layer Improved organophotoreceptor have an electrically conductive substrate, a charge generation layer comprising a charge generation compound and optionally a charge transport compound, and an overcoat layer comprising an electron transport compound wherein the charge g... | 05/10/2005 |
| 6864025 | Sulfonyldiphenylene-based charge transport compositions This invention relates to a novel organophotoreceptor that includes: (a) a charge transport composition comprising molecules having the formula where the average n is between ... | 03/08/2005 |
| 6861188 | Electrophotographic photoreceptor, and image forming method, image forming apparatus and process cartridge therefor using the photoreceptor Electrophotographic photoreceptor having a photosensitive layer containing an amino compound selected from formulae 1 to 22 in the specification. ... | 03/01/2005 |
| 6835514 | Hydrazone-based charge transport compounds Improved organophotoreceptor include: (a) a charge transport compound having the formula where R1 has a structure of: ... | 12/28/2004 |
| 6835513 | Carbazole based charge transport compounds Improved organophotoreceptors have: (a) a charge transport compound having the formula: where R1 is hydrogen, a branched or linear alkyl group, a branched or linear... | 12/28/2004 |
| 6815133 | Sulfonyldiphenylene based charge transport compositions This invention relates to a novel organophotoreceptor that includes: (a) a charge transport composition comprising molecules having the formula where the average n is between ... | 11/09/2004 |
