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Patent No. 5307162

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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Class 546/5 - The metal is bonded directly to chalcogen of a -C(=X)X- group, wherein the X's are the same or diverse chalcogens, which group is attached directly or indirectly to the six-membered hetero ring by nonionic bonding


Subclass of Class 546 - Organic compounds -- part of the class 532-570 series
Definition: Compounds wherein the metal is bonded directly to the singly
No. of patents: 142
Last issue date: 08/19/2008


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NumberTitleIssue Date
7413816Organic metallic complex and electroluminescent element using the same
A white or whitish luminescent material for phosphorescence is provided by synthesizing an organometallic complex that is able to convert a triplet excited state into light emission. In particular, a white electroluminescent device that has a high luminous efficienc...
08/19/2008
7381479Organometallic compounds and emission-shifting organic electrophosphorescence
Emissive phosphorescent organometallic compounds are described that produce improved electroluminescence, particularly in the blue region of the visible spectrum. Organic light emitting devices employing such emissive phosphorescent organometallic compounds are also...
06/03/2008
7301025Colorant compounds
Compounds of the formula wherein M is either (1) a metal ion having a positive charge of +p wherein p is an integer which is at least 2, said metal ion being capable of forming a compound with at least two chromo...
11/27/2007
7294415Organometallic complex and organic electroluminescent device employing the same
An organometallic complex which includes a carboxylic acid as an ancillary ligand, and an organic electroluminescent device employing the same. The organometallic complex is useful as a phosphorescence dopant material of an organic electroluminescent device due to i...
11/13/2007
7232616Organic electroluminescent materials and devices made from such materials
A class of organic metal complexes with mixed ligands for organic light emitting diodes are designed and characterized as the formula:(L2L3M)n. In this formula: L2 is a bidentate ligand which has at least one coordinate atom of oxyge...
06/19/2007
7202362Transition metal complexes from solid state synthesis
Methods and compositions related to the synthesis of photosensitizers of titanium dioxide performed in situ, stepwise, in the solid state, and directly on the surface of the titanium dioxide semiconductor material. The method is generally accomplished by first absor...
04/10/2007
7176307Organometal complex, electroluminescence material using the complex, and electroluminescence element using the complex
Organometal complexes which are obtainable with a good yield by using a ligand which can be easily synthesized are provided. The organometal complexes are excellent in heat resistance. An electroluminescence element having high light emission efficiency is manufactu...
02/13/2007
7078114Phosphorescence compound and electro field light emitting device having the same
A phosphorescent compound is formed by synthesizing an orthometallated complex by using easily-synthesized ligands. An electroluminescent device having high luminous efficiency uses the phosphorescent compound. Moreover, a light-emitting device operating at a low vo...
07/18/2006
7041390Organometal complex, electroluminescence material using the complex, and electroluminescence element using the complex
Organometal complexes which are obtainable with a good yield by using a ligand which can be easily synthesized are provided. The organometal complexes are excellent in heat resistance. An electroluminescence element having high light emission efficiency is manufactu...
05/09/2006
7022853Single pot process for preparing metal nicotinates from beta-picoline
The present invention relates to a single-pot process for the preparation of metal nicotinates, useful as a dietary supplement, from beta picoline as a source of the starting material, said process comprising the steps hydrosulfonation of beta picoline with sulfuric...
04/04/2006
6936700Bridged aromatic substituted amine ligands with donor atoms
The present invention provides for substituted metal chelating compounds in which at least two of the chelating atoms are nitrogen which are directly attached to aromatic rings and one or more of those nitrogen atoms has attached thereto a substituent other than hyd...
08/30/2005
6919333Bis-transition-metal-chelate probes
A molecule for labeling a target material is provided including two transition-metal chelates and a detectable group. The molecule has the general structural formula (I): wherein: (a) Y and Y′ are each a transition met...
07/19/2005
6635759Luminescent 4-trifluoromethyl 1-2-quinolones with long wave UV absorption and the use thereof
The invention relates to a substituted 4-trifluoromethyl carbostyril according to formula (I) and is characterised in that the 4-trifluoromethyl carbostyril is provided with an absorption maximum between 350 and 420 nm and a luminescence maximum between 4...
10/21/2003
6541490Bipyridine manganese complexes
Compounds and methods of preparing compounds represented by structural formula (I): ##STR1## wherein X represents any suitable counter-anion; R1 and R2 independently represent hydrogen, C1-6 alkoxy or nitro; R3,...
04/01/2003
6486318Single pot process for preparing metal picolinates from alpha picoline
The present invention relates to a single pot process for the preparation of metal picolinates useful as dietary supplement from alpha picoline, said process comprising hydrosulphonation of alpha picoline with sulphuric acid; heating the reaction mixture ...
11/26/2002
6469169Water soluble palladium complexes and process for the preparation thereof
The invention provides a water soluble palladium complex of the general formula I ##STR1## wherein R1, R2, R3 are substituents on phosphine ligands selected from the group consisting of hydrogen, alkyl, arylalkyl, and ...
10/22/2002
6337038Particles of a window for varying the degree of light transmission in presence of electric field and uses thereof
Dichronic particles are developed for a window which varies the degree of light transmission at a user's desire, wherein the particles are obtained by reacting metal complexes of a transition metal (Co, Ni, Cu) and picolinic acid with polyiodine, dispersi...
01/08/2002
6069253Process for the preparation of new transition metal complexes
The present invention relates to novel group VIII transition metal complexes represented by the formula (I) as: ##STR1## wherein M is the central transition metal; represents a semilabile anionic chelating ligand; R1, R2 & R
05/30/2000
6001872Water soluble transplatinum complexes with anti-cancer activity and method of using same
The present invention relates to the treatment of tumors with a novel water soluble trans-platinum coordination compound having the general structural formula [PtBXm (NR*3)] where B is a planar, heterocyclic ring containing at least ...
12/14/1999
5869026Tripodal carboxamide ligands for MRI contrast agents
Novel ligands for use in MRI contrast agents and which have the formula ##STR1## wherein R1 -R14, M", l, m, and n are defined herein....
02/09/1999
5869025Tripodal aromatic heterocycle carboxamide MRI contrast agents
A composition of matter having the formula ##STR1## wherein R1 -R14, M, l, m, and n are defined herein and which have application as MRI contrasting agents....
02/09/1999
5861140Tripodal paramagnetic contrast agents for MR imaging
A composition of matter having the formula ##STR1## wherein R1 -R14, M, l, m, and n are defined herein and which have application as MRI contrasting agents....
01/19/1999
5858329MRI diagnostic procedures using tripodal pyridinyl metal complexes
A method of performing an NMR diagnostic procedure in a patient in need of the same comprising administering to the patient an effective amount of an NMR diagnostic medium and then exposing the patient to an NMR measurement step to which the diagnostic me...
01/12/1999
5859215Biospecific binding reactants labelled with luminescent lanthanide chelates and their use
This invention relates to a detectable molecule comprising a biospecific binding reactant attached to a luminescent lanthanide chelate comprising a lanthanide ion and a chelating ligand of the formula ##STR1## wherein --A-- is a bivalent aromatic str...
01/12/1999
5756688MR imaging compositions and methods
This invention provides compositions useful in MR imaging comprising a polymer comprising units comprising the residue of a chelating agent linked to a poly(alkylene oxide) moiety, the polymer having a paramagetic metal ion associated therewith....
05/26/1998
5725651Mono-N-alkyl-quinacridone pigments
Mono-N-alkyl-quinacridone pigments are disclosed. They exhibit high light fastness, high temperature stability and high migration fastness. Moreover, they show hypsochromic shifts, fluorescence and high photoconductivity. These pigments are suited for col...
03/10/1998
5721222Heterocyclic ketones
The present invention relates to certain novel heterocyclic ketones which are 1-pyridylacetamide ketones of formula I, set out herein, which are inhibitors of human leukocyte elastase (HLE), also known as human neutrophil elastase (HNE), making them usefu...
02/24/1998
5693310Amide complexes
Compounds of general Formula I ##STR1## wherein R3 is a saturated, unsaturated, straight- or branched-chain or cyclic aliphatic hydrocarbon residue of up to 16 carbon atoms or, if R4 is a hydrogen atom, a cycloalkyl group or an ...
12/02/1997
5686613Tridentate metal ligands of certain pyridine phosphonic acids
Novel pyridine phosphonate ligands are disclosed that when combined with polyvalent metals results in useful catalyst compositions for the conversion of hydrogen sulfide to solid sulfur. Catalysts containing these novel ligands exhibit resistance to metal...
11/11/1997
5582817Remedy for dermatopathy and metallothionein inducer
Zinc salts, zinc complexes or salts thereof of a compound selected from the group consisting of nicotinamides, picolinamides, 3,4-dihydroxybenzoic acids, amino acids, peptides, hinokitiols and pyridine carboxylic acids represented by formula (1): ##S...
12/10/1996
5571897Luminescent lanthanide chelates
Lanthanide chelates which contain three heterocyclic rings covalently coupled to each other (either one 2,6-pyridylene and two five-membered unsaturated heterocyclic ring moieties or two 2,6-pyridylene and one five-membered unsaturated heterocyclic ring m...
11/05/1996
5536838Method of synthesis of chromium amino acid nicotinate complex
A novel synthesis of a chromium amino acid nicotinate complex which has glucose tolerance factor activity in which nicotinic acid is dissolved in an aqueous solvent, glycine, glutamic acid and cystine are added, chromium chloride is added and, after compl...
07/16/1996
5527905Anti-tumor platinum complexes, their preparation and their therapeutic use
Compounds of formula (I): ##STR1## in which: A and B are separately monoamines or together diamines; and Z is a group of formula (II) or (III): ##STR2## (in which R1, R2 and R7 are various organic groups, n is 0,...
06/18/1996
5484762Aryloxy-n-(substituted phenyl) benzotriazole herbicidal agents
There is provided an aryloxy-N-(substituted phenyl)benzotriazole compound having the structural formula I ##STR1## Further provided are a composition and a method comprising that compound for the control of undesirable plant species....
01/16/1996
54687428-vinyl- and 9-ethinyl-quinolone-carboxylic acids
The invention relates to new 8-vinyl- and 8-ethinylquinolonecarboxylic acids, process for their preparation, and antibacterial agents and feed additives containing them....
11/21/1995
5453422Quinolone- and naphthyridone carboxylic acid derivatives, process for their production, antibacterial compositions and feed additives containing them
An antibacterially active quinolone or naphthyridonecarboxylic acid derivative of the formula ##STR1## in which R1 stands for various organic radical, R2 stands for hydrogen, alkyl having 1 to 4 carbon atoms or (5-methyl-2-oxo-1...
09/26/1995
5409915Bis-platinum (IV) complexes as chemotherapeutic agents
Novel bis(platinum) (IV) complexes coupled via diamine bridging agents are taught as well as methods for their preparation. These complexes are to be used as pharmaceutical agents, e.g., for the treatment of cancer and parasitic diseases....
04/25/1995
5302604Cholesterol lowering compounds produced by directed biosynthesis
Compounds of Structural Formula (I) ##STR1## are produced by directed biosynthesis. These compounds are squalene synthetase inhibitors and thus useful as cholesterol lowering agents, antifungal agents and cancer treatment agents....
04/12/1994
5294627Directed biosynthesis of biologically active compounds
Compounds of Structural Formula (I) ##STR1## are produced by directed biosynthesis. These compounds are squalene synthase inhibitors and thus useful as cholesterol lowering agents and antifungal agents. These compounds are also inhibitors of farnesyl...
03/15/1994
5284842Quinolone- and naphthridone carboxylic acid derivatives, process for their production, antibacterial compositions and feed additives containing them
An antibacterially active quinolone or naphthyridonecarboxylic acid derivative of the formula ##STR1## in which R1 stands for various organic radical, R2 stands for hydrogen, alkyl having 1 to 4 carbon atoms or (5-methyl-2-oxo-1...
02/08/1994
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