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| Number | Title | Issue Date |
| 7371490 | Photoconductor, image forming apparatus, image forming process, and process cartridge The object of the present invention is to provide a photoconductor that is highly sensitive, stable in image quality under repeated usages, and affords prolonged life. In order attain the object, a photoconductor is provided that comprises a charge generating... | 05/13/2008 |
| 7291430 | Imaging members A member including for example, a substrate, a charge blocking layer, an optional adhesive layer, a charge generating layer comprising particles comprising a photogenerating layer of for example, chlorogallium phthalocyanine dispersed in a matrix comprising a charge... | 11/06/2007 |
| 7234129 | Calculating etch proximity-correction using object-precision techniques One embodiment of the present invention provides a system that calculates etch proximity-correction during an OPC (Optical Proximity Correction) process. During operation, the system receives a layout for an integrated circuit. Next, the system selects a target poin... | 06/19/2007 |
| 7198664 | Ink jet black ink, ink set, ink jet recording method, ink cartridge, recording unit, and ink jet recording apparatus An object of the present invention is to provide an ink jet black ink by which an image quality comparable to that of a silver halide photograph is obtained with a compatibility between a high fastness and a high image quality when the ink is printed on a recording ... | 04/03/2007 |
| 7135261 | Multi-layered organic electrophotographic photoconductor A multi-layered organic electrophotographic photoconductor exhibits superior stability in mass production and excellent adhesion ability with two layers contacting the charge generation layer and is free of contamination of the coating liquid for a charge transport ... | 11/14/2006 |
| 7108947 | Sol-gel processes for photoreceptor layers A photoconductive imaging member includes a hole blocking layer, a photogenerating layer, a charge transport layer, and an optional overcoating layer, wherein at least one of the charge transport layer and the optional overcoating layer is formed in a sol-gel proces... | 09/19/2006 |
| 7071962 | Electrophotographic apparatus, process cartridge and electrophotographic photosensitive member unit An electrophotographic apparatus has a beam spot made to have a small spot diameter by the use of a laser having an oscillation wavelength within the range of from 380 nm to 450 nm, and enables image reproduction at ultra-high resolution and with ultra-high image qu... | 07/04/2006 |
| 7052538 | Trisazo dyes for ink jet printing A composition comprising a liquid medium and a compound of Formula (1) or salt thereof: wherein: A is optionally substituted phenyl or naphthyl provided A is not 2-sulpho-4-meth... | 05/30/2006 |
| 7041161 | Trisazo dyes for ink jet printing A composition comprising a liquid medium and a compound of Formula (1) or salt thereof: wherein: A is 2-sulpho-4-methoxyphenyl; B is optionally substituted phenylene o... | 05/09/2006 |
| 6656652 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus An electrophotographic photosensitive member includes a support, and a charge generation layer and a charge transport layer provided on the support in this order. The charge generation layer contains a charge-generating material in an amount of more than ... | 12/02/2003 |
| 6465143 | Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus An electrophotographic photosensitive member capable of forming images with less defects, such as ghost, while retaining a high photo-sensitivity, is provided. The photosensitive member includes a support and a photosensitive layer disposed on the support... | 10/15/2002 |
| 6335132 | Electrophotographic photosensitive member, and process cartridge and electrophotographic apparatus including the photosensitive member An electrophotographic photosensitive member capable of forming images with less defects, such as ghost, while retaining a high photo-sensitivity, is provided. The photosensitive member includes a support and a photosensitive layer disposed on the support... | 01/01/2002 |
| 6180301 | Tetrafluoro hydroxygallium phthalocyanines and photoconductive imaging members A photoconductive imaging member comprised of a supporting substrate, a photogenerating layer, and a charge transport layer, and wherein said photogenerating layer is comprised of a mixture of a hydroxygallium phthalocyanine and a tetrafluoro hydroxygalli... | 01/30/2001 |
| 5863683 | Electrophotographic photoconductor containing charge generating azo pigment subjected to a salt-milling process An electrophotographic photoconductor composed of an electroconductive support and a photoconductive layer formed thereon, which contains as a charge generating material an azo pigment subjected to a salt milling process.... | 01/26/1999 |
| 5853930 | Electrophotographic photoconductors using bisazo compounds There is provided an electrophotographic photoconductor comprising as a charge carrier generating substance a bisazo compound of the general formula (I): ##STR1## wherein R1 and R2 are the same or different, each representing a ... | 12/29/1998 |
| 5811212 | Electrophotographic photosensitive member containing an azocalixn!arene compound and electrophotographic apparatus and process cartridge comprising the photosensitive member The present invention provides an electrophotographic photosensitive member containing an azo-calix n! arene compound produced by coupling a calix n! arene compound and an azonium compound having at least two azo groups. The present invention also pro... | 09/22/1998 |
| 5629116 | Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus having the electrophotographic photosensitive member An electrophotographic photosensitive member and a process cartridge and an electrophotographic apparatus. The process cartridge and the electrophotographic apparatus both contain the electrophotographic photosensitive member. The electrophotographic phot... | 05/13/1997 |
| 5622799 | Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus having the electrophotographic photosensitive member An electrophotographic photosensitive member, a process cartridge having the electrophotographic photosensitive member and an electrophotographic apparatus are provided. The electrophotographic photosensitive member has a conductive substrate and a photos... | 04/22/1997 |
| 5604065 | Electrophotographic photoconductor and triphenylamine compound for use therein An electrophotographic photoconductor includes an electroconductive substrate, and a photoconductive layer formed thereon containing at least one tertiary amine compound of formula (I) as an effective component: ##STR1## wherein Ar1 and Ar... | 02/18/1997 |
| 5595845 | Electrophotographic photosensitive member, electrophotographic apparatus including same and electrophotographic apparatus unit An electrophotographic photosensitive member is constituted by disposing charge generation layer and a charge transport layer in succession on a support. The charge generation layer contains oxytitanium phthalocyanine, an azo pigment and a hindered phenol... | 01/21/1997 |
| 5576131 | Electrophotographic photosensitive member, electrophotographic apparatus including same and electrophotographic apparatus unit An electrophotographic photosensitive member is constituted by disposing a photosensitive layer on a support. The photosensitive layer contains oxytitanium phthalocyanine and a specific disazo pigment of the formula (I) or (II) each characterized by havin... | 11/19/1996 |
| 5569749 | Organic photoconductive material and a photosensitive material for electronic photography using it An organic photoconductive material is represented by the following general formula [1]: A1 --N.dbd.N--B--N.dbd.N--A2 [1], wherein B is a divalent organic group bonded to nitrogen atoms forming azo groups, A1 | 10/29/1996 |
| 5492784 | Positively-chargeable single-layered type electrophotographic photoconductor A positively-chargeable single-layered type organic electrophotographic photoconductor composed of an electroconductive support and an organic single-layered photoconductive layer containing a charge generating material, an organic positive hole transport... | 02/20/1996 |
| 5411828 | Electrophotographic photosensitive member, and electrophotographic apparatus, device unit and facsimile machine having the photosensitive member An electrophotographic photosensitive member is disclosed which has a photosensitive layer on a conductive support. The photosensitive layer contains an azo pigment of Formula (1): Ar--(--N.dbd.N--Cp)n. Also, disclosed are an electrophotographic app... | 05/02/1995 |
| 5401612 | Polyesters containing nonlinear-optical chromophores, and the use thereof Polyesters containing nonlinear-optical chromophores, which have mean molecular weights Mw of from 5000 to 500,000 and contain units of the formula (I) ##STR1## where A is a divalent radical, D is an electron donor, G is a heterocyclic rin... | 03/28/1995 |
| 5376486 | Electrophotographic photoreceptor with azo compound having particular coupler The present invention provides an electrophotographic photoreceptor high in sensitivity and endurance and highly resistant against oxidizing action with ozone or the like which comprises an electrically conductive support and, provided thereon, a light-se... | 12/27/1994 |
| 5370954 | Photoconductive composition containing trisazo and disazo compounds An electrophotographic photoconductor is composed of an electroconductive support and a photoconductive layer formed thereon which contains a charge generating material and a charge transporting material. The charge generating material is composed of a pa... | 12/06/1994 |
| 5344735 | Bisazo electrophotographic photoconductor An electrophotographic photoconductor is disclosed, which comprises an electroconductive support and a photoconductive layer formed thereon comprising a bisazo pigment having the formula (I) serving as a charge generating material: ##STR1## wher... | 09/06/1994 |
| 5292608 | Bisazo photoconductor for electrophotography A photoconductor for electrophotography comprises an electroconductive substrate and a photosensitive layer formed on the substrate. The photosensitive layer includes a novel bisazo compound as a charge generating substance therein. The bisazo compound is... | 03/08/1994 |
| 5292602 | Bisazo photoconductor for electrophotography A photoconductor for electrophotography comprises an electroconductive substrate and a photosensitive layer formed on the substrate. The photosensitive layer includes a novel bisazo compound as a charge generating substance therein. The bisazo compound is... | 03/08/1994 |
| 5286590 | Bisazo photoconductor for electrophotography A photoconductor for electrophotography comprises an electroconductive substrate and a photosensitive layer formed on the substrate. The photosensitive layer includes a novel bisazo compound as a charge generating substance therein. The bisazo compound is... | 02/15/1994 |
| 5272028 | Electrophotographic photosensitive member comprising a tris-azo pigment An electrophotographic photosensitive member has a photosensitive layer provided on an electroconductive support. The photosensitive layer contains an azo pigment represented by the general formula (I): ##STR1## wherein Ar1 and Ar2 | 12/21/1993 |
| 5229237 | Electrophotographic photosensitive member and process for production thereof comprising a disazo and trisazo pigment An electrophotographic photosensitive member is produced by coating an electroconductive substrate with a compound represented by formula (1) shown below and a compound represented by formula (2) shown below respectively by spray-coating through separate ... | 07/20/1993 |
| 5200286 | Electrophotographic photoreceptor An electrophotographic photoreceptor is disclosed, comprising a substrate having thereon at least an electric charge generating layer and an electric charge transporting layer, characterized in that the electric charge generating layer is formed from a co... | 04/06/1993 |
| 5194353 | Electrophotographic photosensitive member, and electrophotographic apparatus and facsimile employing the same An electrophotographic photosensitive member comprises an electroconductive support and a photosensitive layer formed thereon. The photosensitive layer contains a compound represented by the general formula (1): ##STR1##... | 03/16/1993 |
| 5173383 | Electrophotographic photosensitive member, and electrophotographic apparatus and facsimile machine employing the same An electrophotographic photosensitive member comprises an electroconductor support and a photosensitive layer formed thereon. The photosensitive layer contains at least one of the azo pigments represented by the formula [1], [2], or [3] below: ##STR1... | 12/22/1992 |
| 5158847 | Electrophotographic photosensitive member comprising an azo pigment as a charge generating material An electrophotographic photosensitive member has a conductive support and a photosensitive layer provided on said conductive support. Said photosensitive layer contains an azo pigment.... | 10/27/1992 |
| 5106712 | Electrophotographic photoreceptor containing bisazo compound A novel electrophotographic photoreceptor is provided comprising on an electrically conductive support a layer containing a charge carrier-transporting compound and a charge carrier-generating compound or a charge carrier-transporting compound-containing ... | 04/21/1992 |
| 5096794 | Bisazo photoconductor for electrophotography A photoconductor for electrophotography includes an electroconductive substrate and a photosensitive layer formed on the substrate. The photosensitive layer includes a novel bisazo compound as a charge generating substance therein. One type of bisazo comp... | 03/17/1992 |
| 5097022 | Bisazo pigments for use in electrophotographic photoconductors An electrophotographic photoconductor comprises an electroconductive support and a photoconductive layer formed thereon comprising a bisazo compound having the formula (I) serving as a charge generating material: ##STR1## wherein Y represents a halog... | 03/17/1992 |
