Quotables
"The radio craze will die out in time."
Thomas Edison ; 1922
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 |
| 7586006 | Aromatic amine derivative and organic electroluminescent element employing the same The present invention relates to aromatic amine derivatives having a specific structure in which a substituted anthracene structure is bonded to an amine structure substituted with benzene rings having substituent groups; and organic electroluminescence devices comp... | 09/08/2009 |
| 7431997 | Phenylcarbazole compounds and organic electroluminescence devices using the same A phenylcarbazole compound of formula (1) below is provided, where each of R1 and R2 is independently a monosubstituted or polysubstituted functional group selected from the group consisting of hydroge... | 10/07/2008 |
| 7405326 | Aromatic amine derivatives and electroluminescence device using the same An aromatic amine derivative with a specific structure and an organic electroluminescence device which comprises at least one organic thin film layer comprising a light emitting layer sandwiched between a pair of electrode consisting of an anode and a cathode, where... | 07/29/2008 |
| 7385095 | Indene derivatives and organic light emitting diode using the same The present invention provides an indene derivatives having a new structure and an organic light-emitting diode using the same. The organic light-emitting diode according to the present invention shows improved effects in efficiency, driving voltage and stability. | 06/10/2008 |
| 7358409 | Substituted anthryl derivative and electroluminescence device using the same There is disclosed a substituted anthryl derivative is represented by the following general formula (1). The use of the substituted anthryl derivative allows the production of an organic electroluminescence device showing an extremely pure luminescence hue, and an o... | 04/15/2008 |
| 7338721 | Condensed polycyclic compound and organic light-emitting device using the same A new condensed polycyclic compound represented by general formula [I]: wherein R1 is hydrogen, halogen, cyano, a substituted amino or a group selected from the group consisting of alkyl, aralkyl, aryl, heterocyc... | 03/04/2008 |
| 7252894 | Anthracene compound for organic electroluminescent device An anthracene compound for an organic electroluminescent device, having formula (I) or (II) wherein R1, R2, R3, R4, R5, and R6 ... | 08/07/2007 |
| 7235194 | Two-photon or higher-order absorbing optical materials for generation of reactive species Disclosed are highly efficient multiphoton absorbing compounds and methods of their use. The compounds generally include a bridge of pi-conjugated bonds connecting electron donating groups or electron accepting groups. The bridge may be substituted with a variety of... | 06/26/2007 |
| 7229702 | Oligofluorenlylene compounds The present invention provides an oligofluorenylene compound represented by the general formula below, which enables production of an organic light-emitting device that exhibits an extremely pure luminescent hue and has a light emission of high efficiency, high brig... | 06/12/2007 |
| 7196225 | Bis(aminostyryl) anthracene compound, synthesis intermediate thereof, and process for production thereof A bis(aminostyryl)anthracene compound represented by the general formula [I] or the like below. (where R2 and R3 each denotes an unsubstituted aryl group; R1 and R4 eac... | 03/27/2007 |
| 7196224 | 1,3,5-tris(arylamino)benzenes The invention provides 1,3,5-tris(arylamino)benzenes represented by the general formula (I) wherein A is naphthyl, anthryl, phenanthryl, biphenylyl or terphenylyl group, and R is alkyl having 1–6 carbon atoms o... | 03/27/2007 |
| 7173131 | Anthryl derivative group substituted compound, and organic luminescent device making use of same An anthryl derivative group substituted compound having a specific chemical structure is provided. This compound is used for producing an organic luminescent device which can emit luminescent hues with a very high purity and effect light emission with a high lumines... | 02/06/2007 |
| 7166240 | Hydrocarbon compounds, materials for organic electroluminescent elements and organic electroluminescent elements An electroluminescent element in which at least one layer containing at least one of novel hydrocarbon compounds with an anthracene ring and a fluorene ring directly bound is held between a pair of electrodes. The compounds can advantageously be used in a luminescen... | 01/23/2007 |
| 7132572 | Fullerene compounds The invention relates to fullerene compounds of the following formula: in which X1, X2, X3, X4, X5, Y1, Y2, V, W, F, E, R, r, n, p, and q are defi... | 11/07/2006 |
| 7129386 | Substituted anthryl derivative and electroluminescence device using the same There is disclosed a substituted anthryl derivative is represented by the following general formula (1). The use of the substituted anthryl derivative allows the production of an organic electroluminescence device showing an extremely pure luminescence hue, and an o... | 10/31/2006 |
| 7081550 | Arylamine compound and organic electroluminescence device A novel arylamine compound represented by the following general formula (1): wherein R1 and R2 each independently represent an alkyl group, an alkoxyl group, an aryl group, an arylalkyl group or an aryloxyl group, Ar1 to Ar | 07/25/2006 |
| 7049470 | Bis (aminostyryl) anthracene compound, synthesis is intermediate thereof, and process for production thereof A bis(aminostyryl)anthracene compound represented by the general formula [I] or the like below. (where R2 and R3 each denotes an unsubstituted aryl group; R1 and R4 eac... | 05/23/2006 |
| 6951693 | Organic electroluminescence device Materials for organic electroluminescence devices represented by following general formula [1]: wherein A represents a substituted or unsubstituted arylene group having 22 to 60 carbon atoms, X... | 10/04/2005 |
| 6936189 | Cyclic tertiary amine compound and organic electroluminescent device containing the compound A cyclic tertiary amine compound represented by a formula (1) and an organic luminescent device are disclosed. Use of the cyclic tertiary amine compound as a hole transport material, a hole injection material or an organic electroluminescent material can provide org... | 08/30/2005 |
| 6929870 | Hydrocarbon compounds, materials for organic electroluminescent elements and organic electroluminescent elements An electroluminescent element in which at least one layer containing at least one of novel hydrocarbon compounds with an anthracene ring and a fluorene ring directly bound is held between a pair of electrodes. The compounds can advantageously be used in a luminescen... | 08/16/2005 |
| 6914078 | Triarylmethane derivatives and their use as photochemotherapeutic agents Disclosed are compounds having one of the following structures: wherein R and R′ are hydrogen or substituted or unsubstituted C1 to C6 linear or branched alkyl, and at least one X is a halogen a... | 07/05/2005 |
| 6906217 | Aminostyrylanthracene compound, synthetic intermediate thereof, and process for production thereof This invention is an aminostyrylanthracene compound represented by, for example, the following general formula [I]. This compound is produced by condensation from a responding aminobenzaldehyde and a phosphonic ester or phosphonium salt. | 06/14/2005 |
| 6858325 | Organic compound and electroluminescent device using the same An electroluminescent device is formed of a pair of electrodes and an organic compound layer interposed between the electrodes. The organic compound layer is composed of an organic compound represented by the following general formula (1): | 02/22/2005 |
| 6790975 | Aminostyrylanthracene compound, synthetic intermediate thereof, and process for the production thereof This invention is an aminostyrylanthracene compound represented by, for example, the following general formula [I]. This compound is produced by condensation from a corresponding aminobenzaldehyde and a phosphonic ester or phosphonium salt. ... | 09/14/2004 |
| 6753128 | Photoresist additive for preventing acid migration and photoresist composition comprising the same Photoresist additives for preventing the acid generated in the exposed area during the course of a photolithography process from being diffused to the unexposed area, photoresist compositions containing the same, and a process for forming a photoresist pattern using... | 06/22/2004 |
| 6723870 | Method for producing anthracenes Disclosed is a method for producing anthracene of formula (II) below by mixing a reaction mixture with a primary alcohol, wherein the reaction mixture is a reaction mixture obtained by reacting a metal hydride with an anthraquinone of formula (I): ... | 04/20/2004 |
| 6696178 | Cyclocondensed polycyclic hydrocarbon compound and light-emitting device using the same An organic light-emitting device comprising a light-emitting layer or a plurality of organic compound thin layers including a light-emitting layer formed between a pair of electrodes, wherein at least one layer comprises at least one kind of compound repr... | 02/24/2004 |
| 6657084 | Arylamine compound and organic electroluminescence device A novel arylamine compound represented by the following general formula (1): ##STR1## wherein R1 and R2 each independently represent an alkyl group, an alkoxyl group, an aryl group, an arylalkyl group or an aryloxyl group, Ar | 12/02/2003 |
| 6639102 | Process for producing polyisocyanates of the diphenyl methane series having a reduced color value Polyisocyanates of the diphenyl methane series having reduced color values are obtained by a) reacting aniline and formaldehyde in the presence of an acid catalyst to form a polyamine, b) neutralizing the reaction mixture containing polyamine with a base,... | 10/28/2003 |
| 6586120 | Electro luminescent device comprising fluorene compounds This invention relates to fluorene compounds and their use as a hole transport material in an electro-luminescence device.... | 07/01/2003 |
| 6541129 | Organic electroluminescence device and phenylenediamine derivative The invention is to provide an organic EL device having a long life time that can reduce the driving voltage of the organic EL device, and to provide a material having a small ionization potential and exhibiting a large hole mobility by using as a layer o... | 04/01/2003 |
| 6531632 | Bis-o-aminophenols and o-aminophenolcarboxylic acids and process for preparing the same Bis-o-aminophenols and o-aminophenolcarboxylic acids have the following structures: ##STR1## A1 to A7 are, independently of each other, H, F, CH3, CF3, OCH3 or OCF3. T is an aromatic or het... | 03/11/2003 |
| 6517957 | Organic compound and electroluminescent device using the same An electroluminescent device is formed of a pair of electrodes and an organic compound layer interposed between the electrodes. The organic compound layer is composed of an organic compound represented by the following general formula (1): ##STR1## w... | 02/11/2003 |
| 6515182 | Arylamine compound and organic electroluminescence device A novel arylamine compound represented by the following general formula (1): ##STR1## wherein R1 and R2 each independently represent an alkyl group, an alkoxyl group, an aryl group, an arylalkyl group or an aryloxyl group, Ar | 02/04/2003 |
| 6420413 | Heterocycloalkylbenzocyclobutane and heteroarylbenzocyclobutane compounds A compound selected from those of formula (I): ##STR1## wherein: ##STR2## denotes single bond or double bond, n is integer from 1 to 6 inclusive, R1, and R2 represent a group selected from hydrogen, linear or branched (C1 -C | 07/16/2002 |
| 6417402 | Squaraine based dyes and process for preparation thereof The present invention relates to squaraine dye containing terminal aminoanthracene or acridine groups and to a process for preparation thereof.... | 07/09/2002 |
| 6387544 | OLEDS containing thermally stable glassy organic hole transporting materials Organic light emitting devices comprising a heterostructure for producing electroluminescence having a hole transporting layer with a glass structure. The hole transporting layer comprises a compound having a symmetric molecular structure. The end groups ... | 05/14/2002 |
| 6187543 | Method of screening a compound for its ability to enhance the ability of tristetraprolin to inhibit tumor necrosis factor The present invention relates, in general, to tristetraprolin (TTP) and, in particular, to methods of modulating levels of tumor necrosis factor (TNF) using TTP or nucleic acid sequences encoding same. The invention further relates to metho... | 02/13/2001 |
| 5945566 | Amino compounds of 6,7,8,9-tetrahydro-cyclopentaa!naphthalene and of 2,3-dihydro-cyclopentae!indene New amino compounds of formula: ##STR1## wherein n and Y are as defined in the description, in racemic form or in the form of optical isomers. and addition salts thereof with pharmaceutically acceptable acids. Those compounds may be used as medicaments.... | 08/31/1999 |
| 5912386 | Bridged anthraquinones The present invention relates to compounds of the formula (I) R1 --NH--B--NH--R2 (I), wherein R1 and R2 independently of one another denote an unsubstituted or substituted radical of the form... | 06/15/1999 |
