Quotables
"We live in a society exquisitely dependent on science and technology, in which hardly anyone knows anything about science and technology."
Carl Sagan
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7291428 | 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... | 11/06/2007 |
| 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 |
| 7005672 | Thin film transistor with a semiconductor layer that includes a gelable self-organizable polymer A thin film transistor including: an insulating layer; a gate electrode; a semiconductor layer including coalesced structurally ordered polymer aggregates of a self-organizable polymer, wherein the self-organizable polymer is of a type capable of gelling; a source e... | 02/28/2006 |
| 6992167 | Polythiophenes and devices thereof Polythiophenes of the formula wherein R and R′ are side chains; A is a divalent linkage; x and y represent the number of unsubstituted thienylene units; z represents the number of groups, and wherein the sum of x and ... | 01/31/2006 |
| 6890868 | Process for depositing gelable composition that includes dissolving gelable composition in liquid with agitating to disrupt gelling A process including: (a) selecting a composition including a polymer and a liquid, wherein the polymer exhibits lower solubility in the liquid at room temperature but exhibits greater solubility in the liquid at an elevated temperature, wherein the composition gels ... | 05/10/2005 |
| 6861664 | Device with n-type semiconductor An electronic device includes a semiconductor layer in contact with a number of electrodes, wherein the semiconductive layer includes a compound wherein either or both of the following geometric isomers of the compound are present: | 03/01/2005 |
| 6777529 | Polythiophenes and devices thereof Polythiophenes of the formula wherein R and R′ are side chains; A is a divalent linkage; x and y represent the number of unsubstituted thienylene units; z is 0 or 1, and wherein the sum of x and y is greater than zero;... | 08/17/2004 |
| 6774393 | Field effect transistor A field effect transistor composed of: an insulating layer; a gate electrode; a semiconductor layer including an organic semiconductor material and a binder resin; a source electrode; and a drain electrode, wherein the insul... | 08/10/2004 |
| 6621099 | Polythiophenes and devices thereof An electronic device containing a polythiophene of Formula (I) ##STR1## wherein R and R' are side chains; A is a divalent linkage; x and y represent the number of unsubstituted thienylene units; z is 0 or 1, and wherein the sum of x and y is greater than ... | 09/16/2003 |
| 6319645 | Imaging members A photoconductive imaging member containing a photogenerating layer and a triphenylamine charge transport layer of the formula or optionally mixtures thereof ##STR1## wherein R1, R2, R3, R4, and R5 ar... | 11/20/2001 |
| 6214504 | Photoconductive imaging members A photoconductive imaging member containing a photogenerator layer comprised of a mixture of bis(methylbenzimidazo)perinone, optionally an (alkylimido)perylene, such as (n-pentylimido)perylene or mixtures of (n-pentylimido)perylene, bisbenzimidazo(2,... | 04/10/2001 |
| 6096464 | Photoreceptor including rotaxanes A photoreceptor including: (a) a substrate; (b) a charge generating layer; and (c) a charge transport layer including a charge transport material and a rotaxane material.... | 08/01/2000 |
| 6074791 | Photoconductive imaging members A photoconductive imaging member comprised of a supporting substrate, a hole blocking layer thereover, a photogenerating layer and a charge transport layer, and wherein the hole blocking layer is comprised of a metal oxide prepared by a sol-gel process.... | 06/13/2000 |
| 6015645 | Photoconductive imaging members A photoconductive imaging member comprised of a supporting substrate, a hole blocking layer, an optional adhesive layer, a photogenerator layer, and a charge transport layer, and wherein said blocking layer is comprised of a polyhaloalkylstyrene.... | 01/18/2000 |
| 5756245 | Photoconductive imaging members A photoconductive imaging member comprised of a hydroxygallium phthalocyanine photogenerator layer, a charge transport layer, a barrier layer, a photogenerator layer comprised of a mixture of bisbenzimidazo(2,1-a-1',2'-b)anthra(2,1,9-def:6,5,10-d'e'f')dii... | 05/26/1998 |
| 5698359 | Method of making a high sensitivity visible and infrared photoreceptor A process for fabricating an electrophotographic imaging member including providing a supporting substrate, forming a charge generating layer on the substrate, applying a coating composition to the charge generating layer, the coating composition includin... | 12/16/1997 |
| 5482811 | Method of making hydroxygallium phthalocyanine type V photoconductive imaging members A process for the preparation of hydroxygallium phthalocyanines which comprises hydrolyzing a gallium phthalocyanine precursor pigment by dissolving said hydroxygallium phthalocyanine in a strong acid and then reprecipitating the resulting dissolved pigme... | 01/09/1996 |
| 5456998 | Photoconductive imaging members containing alkoxy-bridged metallophthalocyanine dimers Photoconductive imaging members comprised of an alkoxy-bridged metallophthalocyanine dimer as a charge generator material, wherein said dimer is of the formula C32 H16 N8 MOROMN8 H16 C32 wh... | 10/10/1995 |
| 5453344 | Layered imaging members with binder resins An imaging member comprised of supporting substrate, a photogenerator layer and a charge transport layer comprised of charge transport molecules dispersed in a resin binder comprised of styrene-arylmethacrylate polymers, styrene-alkylmethacrylate polymers... | 09/26/1995 |
| 5419992 | Aryl amine polycondensation polymers A process for the preparation of aryl amine polycondensation polymers useful in electrophotographic imaging members, which process comprises the interfacial polymerization of an aryl amine diol dissolved in an alkaline aqueous phase with a bifunctional ac... | 05/30/1995 |
| 5420226 | Method of making photoreceptor charge transport layers A method of making a photoreceptor charge transport layer involves the steps of applying at least one macrocyclic carbonate oligomer to a supporting surface, and in situ polymerizing the at least one macrocyclic oligomer to form at least one high molecula... | 05/30/1995 |
| 5300392 | Imaging member with polycarbonate obtained from cyclic oligomers A process for the preparation of photoconductive imaging members which comprises coating a supporting substrate with a photogenerator layer comprised of photogenerating pigments, and subsequently applying to the photogenerating layer a mixture comprised o... | 04/05/1994 |
| 5288836 | Process for producing polycarbonates from nitrogen diol and aromatic diol haloformate. Bishaloformate derivatives of diols, especially bisphenols, are used in a polycondensation reaction under low temperature interfacial polycondensation conditions to obtain high molecular weight polycarbonates or alternating copolycarbonates which are usef... | 02/22/1994 |
| 5227449 | Photoconductive imaging members with polycarbonate binders Block copolymers of the formula ##STR1## wherein R1, R2, and R3 are independently selected from the group consisting of hydrogen, alkyl and aryl; k, j, m and n represent the number of repeating segments, and imaging m... | 07/13/1993 |
| 5166021 | Photoconductive imaging members with polycarbonate fluorosiloxane polymer overcoatings Polycarbonatefluorosiloxane polymers of the following formula ##STR1## wherein R1, R2, and R3 are independently selected from the group consisting of hydrogen, alkyl and aryl; k,j,m and n represent the number of repea... | 11/24/1992 |
| 5162485 | Bisphenol based polyesters useful in photoreceptor matrices Bisphenol-based polyesters and a process for their preparation having a first step of diacetylizing the bisphenol then polymerizing the diacetate with an aromatic diacid and an aliphatic diacid are disclosed. The bisphenol-based polyesters can be used as ... | 11/10/1992 |
| 5155200 | Polyarylamine polymers A polyarylamine polymer represented by formula ##STR1## wherein: n is between about 5 and about 5,000, or 0 if p>0, o is between about 0 and about 5,000, or is 0 if p>0 or n=0, p is between about 2 and about 100, or is 0 if n>0, X' and X" are indendently selec... | 10/13/1992 |
| 5153618 | Ionographic imaging system An ionographic imaging member containing a conductive layer and a uniform and continuous dielectric imaging layer free of voids, the imaging layer having a dielectric constant of from about 1.5 to about 40 and a thickness of at least about 45 micrometers,... | 10/06/1992 |
| 5122429 | Photoconductive imaging members A photoresponsive imaging member comprised of a photogenerating layer, and a charge transport layer comprised of charge transport molecules and a resin binder mixture comprised of a polycarbonate and an elastomeric block copolymer.... | 06/16/1992 |
| 5080987 | Photoconductive imaging members with polycarbonate binders Block copolymers of the formula ##STR1## wherein R1, R2, and R3 are independently selected from the group consisting of hydrogen, alkyl and aryl; k, j, m and n represent the number of repeating segments, and imaging m... | 01/14/1992 |
| 5073434 | Ionographic imaging system An ionographic imaging member containing a conductive layer and a uniform and continuous dielectric imaging layer free of voids, the imaging layer having a dielectric constant of from about 1.5 to about 40 and a thickness of at least about 45 micrometers,... | 12/17/1991 |
| 5030532 | Electrophotographic imaging member utilizing polyarylamine polymers An electrostatographic imaging member comprising a support layer and at least one electrophotoconductive layer, said imaging member comprising a polyarylamine polymer represnted by the formula: ##STR1## wherein: n is between about 5 and about 5,000 o... | 07/09/1991 |
| 5030533 | Photoconductive imaging members with liquid crystalline thermotropic polymers A photoresponsive imaging member comprised of a photogenerating layer, and a charge transport layer comprised of hole transport molecules dispersed in a resin binder mixture wherein at least one of the resins is a liquid crystalline thermotropic polymer.... | 07/09/1991 |
| 5017645 | Photoresponsive imaging members with protective copolyurethane overcoatings An imaging member comprised of a photoconductive layer, and a protective copolyurethane overcoating of the formula ##STR1## wherein A is a trivalent group; A' is a bivalent group; R is selected from the group consisting of alkylene, substituted alkyl... | 05/21/1991 |
| 4983482 | Photoconductive imaging members with polyurethane hole transporting layers A layered photoresponsive imaging member comprised of a photogenerating layer, and in contact therewith a hole transporting layer comprised of charge transport polyurethanes of the following formula, optionally doped with a charge transport compound, or o... | 01/08/1991 |
| 4959288 | Photoconductive imaging members with diaryl biarylylamine copolymer charge transport layers A photoconductive imaging member comprised of a photogenerating layer, and a charge transport layer comprised of diaryl biarylylamine copolymers of the formula ##STR1## wherein A and B are independently selected from bifunctional linkages; Z is ... | 09/25/1990 |
| 4853308 | Photoresponsive imaging members with fluorene hole transporting layers A layered photoresponsive imaging member comprised of a supporting substrate, a photogenerating layer, and a hole transport layer comprised of novel bis(diarylamino)fluorenes of the formula: ##STR1## where R and R' are independently selected from the... | 08/01/1989 |
| 4845263 | Layered photoresponsive imaging members with sulfur incorporated dicyanomethylenefluorene carboxylate compositions of matter Disclosed are photoresponsive imaging members comprised of sulfur incorporated dicyanomethylenefluorene carboxylate electron transporting compounds of the formula: ##STR1## wherein S is sulfur, A is a spacer group selected from the group consist... | 07/04/1989 |
| 4835081 | Photoresponsive imaging members with electron transport overcoatings Disclosed is an imaging member comprised of a photoconductive layer, and a protective electron transport polymer overcoating of the formula ##STR1## wherein A is a trivalent linkage; B is a functional group such as ester, carbonate, or carbamate; and... | 05/30/1989 |
| 4820601 | Photoresponsive imaging members with protective copolyurethane overcoatings An imaging member comprised of a photoconductive layer, and a protective copolyurethane overcoating of the formula: ##STR1## wherein A is a trivalent group; A' is a bivalent group; R is selected from the group consisting of alkylene, substituted alky... | 04/11/1989 |
