| Patent Number |
Title Of Patent |
Date Issued |
| 7381511 |
Photoreceptor, image forming method and image forming apparatus using the photoreceptor, process |
June 3, 2008 |
| A photoreceptor including an electroconductive substrate; a photosensitive layer; and optionally a protective layer, wherein an outermost layer thereof includes a filler, an organic compound having an acid value of from 10 to 700 mg KOH/g and at least one compound selected from the group |
| 7220522 |
Electrophotographic photoreceptor, method for manufacturing the electrophotographic photorecepto |
May 22, 2007 |
| A photoreceptor including a photosensitive layer including a specific diamine compound, or a photoreceptor including an electroconductive substrate; a photosensitive layer located overlying the electroconductive substrate; and optionally a protective layer located overlying the photo |
| 7183435 |
Triphenylene compound, method for making |
February 27, 2007 |
| The present invention relates to triphenylene compounds useful, for example, in an electrophotographic photoreceptor, and to a method for manufacturing these compounds. |
| 7122284 |
Electrophotographic photoconductor, image forming method and apparatus, and process cartridge us |
October 17, 2006 |
| An electrophotographic photoconductor has an electroconductive support and a photoconductive layer which is formed thereon and contains at least one resin of a polyurethane resin, a polyester resin, or a polycarbonate resin, each resin having at least a structural unit of formula (1): |
| 7112392 |
Electrophotographic photoreceptor, and image forming method, image forming apparatus and process |
September 26, 2006 |
| An electrophotographic photoreceptor including an electroconductive substrate and a photosensitive layer on the electroconductive substrate, wherein the photosensitive layer includes at least a compound having a substituted or unsubstituted alkylamino group and a charge transport mat |
| 7056633 |
Electrophotographic photoconductor, image forming method and apparatus, and process cartidge usi |
June 6, 2006 |
| An electrophotographic photoconductor has an electroconductive support and a photoconductive layer which is formed thereon and contains at least one resin of a polyurethane resin, a polyester resin, or a polycarbonate resin, each resin having at least a structural unit of formula (1): |
| 7018755 |
Electrophotographic photoconductor, electrophotography method using the same, electrophotographi |
March 28, 2006 |
| An electrophotographic photoconductor having at least a photosensitive layer on a conductive support, wherein the electrophotographic photoconductor comprising, in the outermost layer thereof: a filler, an organic compound having an acid value of 10 400 mgKOH/g, and at least one of c |
| 6974654 |
ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, IMAGE FORMING METHOD AND APPARATUS, AND PROCESS CARTRIDGE US |
December 13, 2005 |
| An electrophotographic photoconductor has an electroconductive support and a photoconductive layer which is formed thereon and contains at least one resin of a polyurethane resin, a polyester resin, or a polycarbonate resin, each resin having at least a structural unit of formula (1): |
| 6909788 |
Speaker voice coil bobbin and method of manufacturing same |
June 21, 2005 |
| A voice coil bobbin 1 is formed from a material combining a fiber-type material and a ceramic-type-coating agent including metal alkoxide, metal hydroxide, and a colloidal or fine-particulate inorganic substance. The combining process for the ceramic-type-coating agent is performed befor |
| 6867374 |
Ceramic insulation coated electric wire self-fusing ceramic insulation coated electric wire coat |
March 15, 2005 |
| A coating composition containing a zirconium compound and a silicon compound is applied on a conductor 1 and baked to develop a ceramic insulating coating 2. A bonding agent made by dissolving a polyamide resin or a polyimide resin into an organic agent is then applied on the ceramic |
| 6861188 |
Electrophotographic photoreceptor, and image forming method, image forming apparatus and process |
March 1, 2005 |
| Electrophotographic photoreceptor having a photosensitive layer containing an amino compound selected from formulae 1 to 22 in the specification. |
| 6740202 |
Speaker diaphragm and method of manufacturing same |
May 25, 2004 |
| A speaker diaphragm is formed from a material combining a fiber-type material and a ceramic-type-coating agent including metal alkoxide, metal hydroxide, and a colloidal or fine-particulate inorganic substance. The combining process for the ceramic-type-coating agent is performed before |
| 6596449 |
Electrophotographic photoreceptor, and process cartridge and electrophotographic image forming a |
July 22, 2003 |
| An electrophotographic photoreceptor for an electrophotographic image forming apparatus which has a laser diode or a light emitting diode emitting a light having a wavelength of 350 to 500 nm as an image writing light source, wherein the photoreceptor includes a photosensitive layer |
| 6548216 |
ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, IMAGE FORMING METHOD AND APPARATUS, AND PROCESS CARTRIDGE US |
April 15, 2003 |
| An electrophotographic photoconductor has an electroconductive support and a photoconductive layer which is formed thereon and contains at least one resin of a polyurethane resin, a polyester resin, or a polycarbonate resin, each resin having at least a structural unit of formula (1): |
| 6544701 |
REACTION PRODUCT, PROCESS FOR THE PRODUCTION THEREOF, ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR USING T |
April 8, 2003 |
| To provide a novel reaction product useful as an organic photoconductive material for electrophotographic photoconductors.A product obtainable by reacting (i) a nitrile derivative, (ii) a phthalonitrile derivative or a 1,3-diiminoisoindoline derivative and, if necessary, (iii) a metal or |
| 6524761 |
Mixture of titanyltetraazaporphyrin compounds and electrophotographic photoconductor using the s |
February 25, 2003 |
| A mixture is made of a plurality of different titanyltetraazaporphyrin compounds, each of which is represented by formula (1): ##STR1##wherein A, B, C and D are each independently an unsubstituted or substituted benzene ring or pyridine ring, a substituent thereof being selected from |
| 6492079 |
Electrophotographic photoconductor, image forming apparatus, and process cartridge using the pho |
December 10, 2002 |
| An electrophotographic photoconductor has an electroconductive support, and a charge generation layer and a charge transport layer successively formed on the electroconductive support, the charge transport layer allowing any monochromatic light with a wavelength in a wavelength region of |
| 6465648 |
REACTION PRODUCT, PROCESS OF PRODUCING SAME, ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR USING SAME, ELEC |
October 15, 2002 |
| A reaction product useful as an organic photoconductive material for electrophotographic photoconductors is provided, obtainable by reacting (i) a nitrile derivative, (ii) a phthalonitrile derivative or a 1,3-diiminoisoindoline derivative and, if necessary, (iii) a metal or a metal-c |
| 6448384 |
Bisazo compound and electrophotographic photoconductor using the same |
September 10, 2002 |
| An electrophotographic photoconductor has an electroconductive support, and a photoconductive layer formed thereon which contains at least one bisazo compound of formula (I): ##STR1##wherein Cp.sup.1 and Cp.sup.2 are each a coupler radical which may be the same or different. Further, |
| 6333439 |
Bisazo compound and electrophotographic photoconductor using the same |
December 25, 2001 |
| An electrophotographic photoconductor has an electroconductive support, and a photoconductive layer formed thereon which contains at least one bisazo compound of formula (I): ##STR1##wherein Cp.sup.1 and Cp.sup.2 are each a coupler radical which may be the same or different. Further, |
| 6316577 |
Electrophotographic photoconductor and aromatic polycarbonate resin for use therein |
November 13, 2001 |
| An electrophotographic photoconductor includes an electroconductive support, and a photoconductive layer formed thereon containing as an effective component an aromatic polycarbonate resin having a structural unit of formula (I), two structural units of formulae (I) and (II), or a re |
| 6313288 |
Mixture of titanyltetraazaporphyrin compounds and electrophotographic photoconductor using the s |
November 6, 2001 |
| A mixture is made of a plurality of different titanyltetraazaporphyrin compounds, each of which is represented by formula (1): ##STR1##wherein A, B, C and D are each independently an unsubstituted or substituted benzene ring or pyridine ring, a substituent thereof being selected from |
| 6271356 |
Electrophotographic photoconductor, azo compounds for use in the same, and intermediates for pro |
August 7, 2001 |
| An electrophotographic photoconductor includes an electroconductive support and a photoconductive layer formed thereon which contains a compound having a charge generating moiety and a charge transporting moiety in the molecule thereof. As such a compound for use in the electrophotograph |
| 6191249 |
Electrophotographic photoconductor and aromatic polycarbonate resin for use therein |
February 20, 2001 |
| An electrophotographic photoconductor includes an electroconductive support, and a photoconductive layer formed thereon containing as an effective component an aromatic polycarbonate resin having a repeat unit of formula (I), or two repeat units of formulae (II) and (III): ##STR1##wh |
| 6184362 |
Electrophotographic photoconductor, azo compounds for use in the same, and intermediates for pro |
February 6, 2001 |
| An electrophotographic photoconductor includes an electroconductive support and a photoconductive layer formed thereon which contains a compound having a charge generating moiety and a charge transporting moiety in the molecule thereof. As such a compound for use in the electrophotograph |
| 6132914 |
Bisazo compound and electrophotographic photoconductor using the same |
October 17, 2000 |
| An electrophotographic photoconductor has an electroconductive support, and a photoconductive layer formed thereon which contains at least one bisazo compound of formula (I): ##STR1## wherein Cp.sup.1 and Cp.sup.2 are each a coupler radical which may be the same or different. Fur |
| 6103435 |
Electrophotographic photoconductor, AZO compounds for use in the same, and intermediates for pro |
August 15, 2000 |
| An electrophotographic photoconductor includes an electroconductive support and a photoconductive layer formed thereon which contains a compound having a charge generating moiety and a charge transporting moiety in the molecule thereof. As such a compound for use in the electrophotograph |
| 6093784 |
Electrophotographic photoconductor and polycarbonate resin for use therein |
July 25, 2000 |
| An electrophotographic photoconductor is composed of an electroconductive support and a photoconductive layer formed thereon, which photoconductive layer includes a polycarbonate resin. Aromatic polycarbonate resins not only for the electrophotographic photoconductor, but also for the ma |
| 6069224 |
Electrophotographic photoconductor and aromatic polycarbonate resin for use therein |
May 30, 2000 |
| An electrophotographic photoconductor includes an electroconductive support, and a photoconductive layer formed thereon containing as an effective component an aromatic polycarbonate resin having a repeat unit of formula (I), or two repeat units of formulae (II) and (III): ##STR1## |
| 6066757 |
Stilbene compound and process for producing same |
May 23, 2000 |
| A stilbene compound is disclosed which has the following general formula (I): ##STR1## wherein R.sup.1 and R.sup.2 each stand for hydrogen, an alkyl group or an acyl group and Ar.sup.1 and Ar.sup.2 each stand for a monovalent homocyclic aromatic group. The stilbene compound may b |
| 6027846 |
Electrophotographic photoconductor and aromatic polycarbonate resin for use therein |
February 22, 2000 |
| An electrophotographic photoconductor includes an electroconductive support, and a photoconductive layer formed thereon containing as an effective component an aromatic polycarbonate resin having a structural unit of formula (I), two structural units of formulae (I) and (II), or a re |
| 6018014 |
Aromatic polycarbonate and electrophotographic photosensitive medium using same |
January 25, 2000 |
| An aromatic polycarbonate containing a structural unit of the formula: ##STR1## wherein R.sup.1 is a hydrogen atom, a substituted or unsubstituted alkyl group or a substituted or unsubstituted aryl group, Ar.sup.1 is a substituted or unsubstituted aryl group and Ar.sup.2 and Ar.sup.3 |
| 5981124 |
Electrophotographic photoconductor, azo compounds for use in the same, and intermediates for pro |
November 9, 1999 |
| An electrophotographic photoconductor includes an electroconductive support and a photoconductive layer formed thereon which contains a compound having a charge generating moiety and a charge transporting moiety in the molecule thereof. As such a compound for use in the electrophotograph |
| 5942363 |
Electrophotographic photoconductor and aromatic polycarbonate resin for use therein |
August 24, 1999 |
| An electrophotographic photoconductor includes an electroconductive support, and a photoconductive layer formed thereon containing as an effective component an aromatic polycarbonate resin having a repeat unit of formula (I), or two repeat units of formulae (II) and (III): wherein Ar |
| 5910561 |
Electrophotographic photoconductor and aromatic polycarbonate resin for use therein |
June 8, 1999 |
| An electrophotographic photoconductor includes an electroconductive support, and a photoconductive layer formed thereon containing as an effective component an aromatic polycarbonate resin having a repeat unit of formula (I), or two repeat units of formulae (II) and (III): ##STR1## |
| 5853935 |
Electrophotographic photoconductor |
December 29, 1998 |
| An electrophotographic photoconductor has an electroconductive support, and a photoconductive layer formed thereon containing a polycarbonate resin with a triarylamine structure on the main chain and/or side chain thereof, which serves as a high-molecular weight charge transport material |
| 5846680 |
Electrophotographic photoconductor and aromatic polycarbonate resin for use therein |
December 8, 1998 |
| An electrophotographic photoconductor includes an electroconductive support, and a photoconductive layer formed thereon containing as an effective component an aromatic polycarbonate resin having a repeat unit of formula (I), or two repeat units of formulae (II) and (III): ##STR1## |
| 5840454 |
Aromatic polycarbonate and electrophotographic photosensitive medium using same |
November 24, 1998 |
| An aromatic polycarbonate containing a structural unit of the formula: ##STR1## wherein R.sup.1 is a hydrogen atom, a substituted or unsubstituted alkyl group or a substituted or unsubstituted aryl group, Ar.sup.1 is a substituted or unsubstituted aryl group and Ar.sup.2 and Ar.sup.3 |
| 5830980 |
Electrophotographic photoconductor, aromatic polycarbonate resin for use in the same, and method |
November 3, 1998 |
| An electrophotographic photoconductor includes an electroconductive support, and a photoconductive layer formed thereon, containing a novel aromatic polycarbonate resin having a repeat unit of formula (I): ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 each is an alkyl group which may |
| 5808155 |
Electrophotographic photoconductor, carbonate compound for use in the same, and intermediate com |
September 15, 1998 |
| An electrophotographic photoconductor having an electroconductive support and a photoconductive layer formed thereon containing as a photoconductive material at least one carbonate compound of formula (I): ##STR1## wherein R.sup.1 and R.sup.2 each is hydrogen, an alkyl group which ma |
| 5789128 |
Electrophotographic photoconductor and aromatic polycarbonate resin for use therein |
August 4, 1998 |
| An electrophotographic photoconductor includes an electroconductive support, and a photoconductive layer formed thereon containing as an effective component an aromatic polycarbonate resin having a repeat unit of formula (I), or two repeat units of formulae (II) and (III): ##STR1## |
| 5747204 |
Electrophotographic photoconductor and aromatic polycarbonate resin for use in the same |
May 5, 1998 |
| An electrophotographic photoconductor includes an electroconductive support, and a photoconductive layer formed thereon, containing a novel aromatic polycarbonate resin having a repeat unit of formula (I): ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 each is an alkyl group which may |
| 5723243 |
Electrophotographic photoconductor and aromatic polycarbonate resin for use therein |
March 3, 1998 |
| An electrophotographic photoconductor includes an electroconductive support, and a photoconductive layer formed thereon containing as an effective component an aromatic polycarbonate resin having a repeat unit of formula (I), or two repeat units of formula (II) and formula (III): ##S |
| 5672756 |
Triphenylamine compound for use in electrophotographic photoconductors |
September 30, 1997 |
| 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 Ar.sup.1 and Ar.sup.3 each is an aryl group which may h |
| 5672728 |
Method for preparing the pyrenylamine derivatives |
September 30, 1997 |
| An electrophotographic photoconductor comprises an electroconductive substrate and a photoconductive layer formed thereon comprising as an effective component at least one pyrenylamine derivative of formula (I): ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, w, j, k, l |
| 5663407 |
Electrophotographic photoconductor, carbonate compound for use in the same, and intermediate com |
September 2, 1997 |
| An electrophotographic photoconductor having an electroconductive support and a photoconductive layer formed thereon containing as a photoconductive material at least one carbonate compound of formula (I): ##STR1## wherein R.sup.1 and R.sup.2 each is hydrogen, an alkyl group which ma |
| 5641598 |
Stilbene compound, process for producing same and electrophotographic photoconductor containing |
June 24, 1997 |
| A stilbene compound is disclosed which has the following general formula (I): ##STR1## wherein R.sup.1 and R.sup.2 each stand for hydrogen, an alkyl group or an acyl group and Ar.sup.1 and Ar.sup.2 each stand for a monovalent homocyclic aromatic group. The stilbene compound may b |
| 5631404 |
Diamine compounds for use in electrophotographic photoconductors |
May 20, 1997 |
| An electrophotographic photoconductor includes an electroconductive support and a photoconductive layer formed thereon containing a diamine compound represented by formula (I): ##STR1## wherein R.sup.1, R.sup.2, and R.sup.3 each is independently a substituted or unsubstituted alk |
| 5623062 |
Bisazo compounds as charge generating materials |
April 22, 1997 |
| 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## wherein Ar represents a residual group |
| 5616805 |
Methods for preparing pyrenylamine derivatives and intermediates |
April 1, 1997 |
| A pyrenylamine derivative having an unsaturated bond formula (I), which can be employed as an organic photoconductive material for use in electrophotography: ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, W, l, m, n, j and k are specifically defined in the specific |
