Bizarre Patents
Cloaking System Using Optoelectronically Controlled Camouflage
A Cloaking System designed to operate in the visible light spectrum, utilizes optoelectronics and/or photonic components to conceal an object within it.
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| Number | Title | Issue Date |
| 7638611 | Polarizer, coating liquid, and manufacturing method for polarizer A polarizer of the present invention comprises an azo compound which is represented by the following general formula (I). In the general formula (I), Q1 represents an optionally substituted aryl group, Q2 represents an optionally substituted ar... | 12/29/2009 |
| 6712893 | Dis-azo dyestuffs and use thereof in ink-jet printing A compound of Formula (1) and salts thereof: In the formula, m is 1, 2 or 3; X is H or SO3H; R1 and R2 are each independently selected from optionally substituted alkyl and optionally sub... | 03/30/2004 |
| 6695899 | Disazo dyestuffs for ink jet printing A compound of Formula (1) and salts thereof: ##STR1## wherein: A is a substituted phenyl group carrying a group of the formula --NR3 R4 and an ortho carboxy group; n is 0 or 1; L1 and L2 are each independ... | 02/24/2004 |
| 6689201 | Disazo dyes and inks containing them A compound of Formula (1) and salts thereof are useful as dyes for ink jet printing inks. ##STR1## In the formula (1), A is optionally substituted phenyl (other than carboxyl substituted); R1 and R2 are each independently optionally ... | 02/10/2004 |
| 6559292 | Disazo dyes and inks containing them Compounds of Formula (1) and salts thereof: ##STR1## wherein: A is optionally substituted phenyl; R1 and R2 are each independently optionally substituted alkyl or optionally substituted alkoxy; and R4 and R5 are each... | 05/06/2003 |
| 6451989 | Black azo dyes Provided are novel black azo dyes which are useful in ink compositions, especially ink jet ink compositions. The dyes and ink compositions of the present invention exhibit a good balance of optical density, print reliability, water fastness and light fast... | 09/17/2002 |
| 6288217 | Black azo dyes Provided are novel black azo dyes which are useful in ink compositions, especially ink jet ink compositions. The dyes and ink compositions of the present invention exhibit a good balance of optical density, print reliability, water fastness and light fast... | 09/11/2001 |
| 6084078 | Disazo dyestuffs for dyeing cellulosic materials The novel disazo dyestuffs of the formula (I) in which the substituents and indices have the meanings given in the description, are outstandingly suitable for dyeing cellulosic materials in red-violet to blue brilliant color shades.... | 07/04/2000 |
| 5969115 | Bisazo dyes and their preparation and use Bisazo dyes of formula (IX) ##STR1## and of formula (X) ##STR2## wherein A, R4, M and n are as defined in the specification, are excellent dyes for dyeing and printing of cellulose containing materials and especially for the prep... | 10/19/1999 |
| 5891230 | Bisazo ink-jet dyes A bisazo dye of Formula (1) and salts thereof: ##STR1## in which R is H; R1 and R2 each independently is H, optionally substituted C1-4 -alkyl or optionally substituted aryl; R3 and R4 are each indepe... | 04/06/1999 |
| 5888286 | Bisazo ink-jet dyes A bisazo dye of Formula (1) and salts thereof: ##STR1## wherein: R1 and R2 each independently is H, optionally substituted C1-4 -alkyl or optionally substituted aryl; R3 is --NH2 ; R4 is OC... | 03/30/1999 |
| 5795970 | Mixed disazo-dye composition and black aqueous ink composition containing the same that provides high grade image on print A disazo dye composition comprising at least a disazo dye represented by the formula (I) and a disazo dye represented by the formula (II): ##STR1## (wherein X and Y indicate an alkoxy group having 1 to 4 carbon atoms, and M indicates hydrogen or a ca... | 08/18/1998 |
| 5744591 | Red dyestuffs A dyestuff of the general formula (1), ##STR1## wherein R1 is H or C1 -C4 alkyl; R2 is a phenyl or naphthyl group, which is unsubstituted or substituted by --Cl, --Br, --I, --CH3, --C2... | 04/28/1998 |
| 5663309 | Diazo dyes having a phenylene group as the middle component and a naphthalene group as the terminal diazo component Azo dyes of the formula ##STR1## in which R1 is hydrogen or substituted or unsubstituted phenylamino, R2 is hydrogen, amino or N-mono- or N,N-di-C1 -C4 alkylamino, R3 is hydrogen or hydroxyl, R4 | 09/02/1997 |
| 5647897 | Ink composition for ink jet recording An ink composition for ink jet recording is provided which can satisfy property requirements of quality of print, drying property of print, clogging resistance, water resistance, storage stability, and nonattacking on members constituting an ink passage, ... | 07/15/1997 |
| 5510468 | Amino benzophenone dye There are described benzophenoneazo dyes of the formula ##STR1## where the ring A can be benzofused and a benzofused ring A can be overbridges, m is 1 or 2, K is the radical of a coupling component, Y is hydrogen or arylazo, one of the two radicals X... | 04/23/1996 |
| 5380859 | Pyridone compounds and the preparation of disulfonated pyridone compounds There are described benzophenoneazo dyes of the formula ##STR1## where the ring A can be benzofused and a benzofused ring A can be overbridged, m is 1 or 2, K is the radical of a coupling component, Y is hydrogen or arylazo, one of the two radicals X... | 01/10/1995 |
| 5366543 | Alcohol-soluble dye and ink composition containing the same The present invention provides a disazo salt-forming dye having excellent solubility with organic solvents, especially alcohols and glycols. The present invention thus provides a disazo salt-forming dye represented by the Formula (I): ##STR1## or the... | 11/22/1994 |
| 5332806 | Disazo dyes which contain 2-hydroxynaphthyl moiety Azo dyes of the formula ##STR1## where A and B are each independently of the other substituted or unsubstituted phenyl or naphthyl and X is --N(R1)--SO2 --, --O--SO2 -- or --SO2 --N(R1)--, where ... | 07/26/1994 |
| 5281263 | Azo dyes containing a carboxy group According to the present invention there is provided a compound which, in the free acid form, is of the Formula (1): ##STR1## wherein A is an optionally substituted phenyl or naphthyl group; Z is H, CO2 H, SO3 H or SO2 NH | 01/25/1994 |
| 5250107 | Water-fast ink composition and method for making the same A water-fast ink composition and method for making the same. A selected chemical dye having at least one functional group with an extractable hydrogen atom thereon (e.g. --COOH, --NH2, or --OH) is combined with an ammonium zirconium polymer sal... | 10/05/1993 |
| 5203912 | Anionic dye A dye which, in the free acid form, has the formula ##STR1## wherein W is COOH X is selected from H, COOH, SO3 H, halo, hydroxy, nitro, cyano, C1-6 -alkyl, C1-6 -alkoxy and C1-6 -acylamino; Y is H, COOH or SO | 04/20/1993 |
| 5198022 | Waterfast dye and aqueous ink A alkali-soluble dye for a waterfast ink having structural formula as follows: ##STR1## and an ink containing the dye dissolved in water. Printing from the ink is insoluble below pH 6.0; is an intense black at low concentration; and remains blac... | 03/30/1993 |
| 5175260 | Disazo dyes with hydroxysulfonylnaphthalene coupling components Disazo dyes suitable for preparing inks have the formula ##STR1## where m is 1 or 2, n is 0 or 1, Z1 is hydrogen or substituted or unsubstituted C1 -C4 -alkyl, Z2 is hydrogen, substituted or unsubstituted C... | 12/29/1992 |
| 5149366 | Disazo compound and ink composition containing the same A disazo compound of the formula (I) in the free acid form, ##STR1## and an ink jet recording ink composition containing the same are provided, and the composition is superior in stability during storage or use, heat resistance, image clearness, wate... | 09/22/1992 |
| 5075428 | 2,4-diamino-6-fluorotriazine disazo reactive dyestuffs A dyestuff of the formula ##STR1## in which R is H or Ch3 ##STR2## in which R1 is H, substituted or unsubstituted C1 -C4 -alkyl or --X--Y X is a divalent aliphatic, cycloaliphatic, aliphaticcycloalip... | 12/24/1991 |
| 5062893 | Ink formulations by mixing anionic waterfast dyes containing two or more carboxyl groups Inks are provided comprising (a) at least two dyes corresponding to the formula ##STR1## wherein W is COOH, X is H, or COOH, Y is H, COOH, or SO3 H, Z is H, COOH, or SO3 H, and R is H, CH2 COOH, or CH2 CH2 | 11/05/1991 |
| 5055566 | Amine salts of disazo black dyes having good solubility in polar organic solvents A compound of the Formula (1): ##STR1## wherein R is H, SO3 A, C1-4 -alkyl, C1-4 -alkoxy, NO2, OH or halogen; W, X, Y and Z are independently H or SO3 A; and A is NQ4 wherein at least one Q... | 10/08/1991 |
| 5053495 | Anionic dye having high water-fastness A dye which, in the free acid form, has the formula ##STR1## wherein W is COOH X is selected from H, COOH, SO3 H, halo, hydroxy, nitro, cyano, C1-6 -alkyl, C1-6 -alkoxy and C1-6 -acylamino; Y is H, COOH or SO | 10/01/1991 |
| 4963189 | Waterfast ink formulations with a novel series of anionic dyes containing two or more carboxyl groups Inks are provided comprising (a) a dye corresponding to the formula ##STR1## wherein W is COOH, X is H, or COOH, Y is H, COOH, or SO3 H, Z is H, COOH, or SO3 H, and R is H, CH2 COOH, or CH2 CH2 COOH; with ... | 10/16/1990 |
| 4867789 | Flocculant purification of ink A method for purifying a dye solution is provided. The method comprises the steps of dissolving an impure dye in a solvent. A flocculant is then added to the dye solution in order to flocculate the imprity so that the impurity may then be removed from the... | 09/19/1989 |
| 4703113 | Water-soluble triazine black dyes free from cellulose reactive groups and suitable for use in inks A water-soluble dye, free from cellulose reactive groups, of the formula: ##STR1## wherein R1 is --(Ca H2a O)m (Cb H2b O)n H, R2 is H or --(Ca H2a | 10/27/1987 |
| 4626284 | Recording liquid The recording liquid containing at least one of the naphthelenediazoic dyes shown by general formula (I) or (II): ##STR1## as defined in the claim, and a liquid medium for dissolving or dispersing the dye. The recording liquid of this invention has t... | 12/02/1986 |
| 4544739 | Fibre-reactive chromium complex Azo-azomethine dyes Chromium complex dyes which, in the form of the free acid, have the formula ##STR1## wherein Z is hydrogen, nitro, chlorine or naphthylazo or phenylazo, wherein naphthyl or phenyl is unsubstituted or substituted by nitro, chlorine, bromine, C1-5... | 10/01/1985 |
| 4432898 | Sulfo-substituted fibre-reactive 1:2-chromium complex azo dyes Chromium complex dyes are disclosed which have the formula ##STR1## wherein S1 represents a hydrogen or halogen atom, a nitro group, a sulpho group, an alkyl or alkoxy radical, an acylamino or arylazo group, S2 represents a hydrogen ... | 02/21/1984 |
| 4426205 | Novel red dyes for fiberglass and paper A red dye composition comprising the dye compound ##STR1## wherein R1.spsp..sym. and R2.spsp..sym. are alkali metal cations or ammonium ions of a lower alkylol amine, and R3 is hydrogen or lower alkyl, and at least ... | 01/17/1984 |
| 4419290 | Diazo dyes having a coupler component attached to a sulfaphenyl-azo-phenyl-azo-radical A dye which in free acid form corresponds to the formula: ##STR1## wherein n is 1 or 2, Hal is chlorine or bromine, R1 is hydrogen, chlorine, bromine, methyl, ethyl, methoxy or ethoxy, R2 is hydrogen, chlorine, bromine, methyl or methoxy,... | 12/06/1983 |
| 4255327 | Direct black dye This invention relates to a new group of trisazo compounds that are useful as direct dyes for cellulosic textiles, paper and leather; imparting a black coloration thereto. The new dye is intended to replace the widely used paper dye known as C.I. Direct B... | 03/10/1981 |
| 4227879 | Concentrated direct dye solution Concentrated solutions of a direct dye having, in the free acid form the formula: ##STR1## are described. The solutions contain 10-30% (by weight) of the dye, 5-20% of one or more specifically defined bases; 0-5% of alkali metal cations; and 45-... | 10/14/1980 |
| 4143035 | Disazo dyestuffs having an alkoxy group on the first and/or second component Compounds of the formula ##STR1## in which A1 and A2 may be hydrogen, alkyl, alkoxy, hydroxy, halo, trifluoromethyl, alkoxyalkoxy, hydroxyalkyl, hydroxyalkoxy, alkoxyalkyl, sulfamoyl, N-alkylsulfamoyl, carboxylic acyl or carboxy... | 03/06/1979 |
