| Patents for C01G 49 - Compounds of iron (8,643) |
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| 10/14/2004 | US20040204307 Mixing two double oxides each containing tungsten or molyb-denum combined with alkali metal earth for one and zirconium or hafnium for other; precision, performance; high frequency circuits |
| 10/14/2004 | US20040202933 Cathode active material for use in lithium ion secondary battery, and lithium ion secondary battery using the active material |
| 10/14/2004 | US20040202606 Method for preparing iron oxides |
| 10/14/2004 | US20040202605 Iron oxyhydroxides as ion intercalation materials and synthesis method thereof |
| 10/14/2004 | US20040202595 addition of sodium hydroxide (to adjust the pH), reacting in another tank into which sodium hydroxide and air are added while the admixture is exposed to an ultraviolet beam circuit; photooxidation; magnetic culling to separate ferric oxide |
| 10/14/2004 | DE10324534A1 Retardierende Oxidationsmittel zur Herstellung leitfähiger Polymere Retarding oxidation agent for the preparation of conductive polymers |
| 10/14/2004 | CA2520606A1 Sic-hexagonal ferrite type ceramic composite electromagnetic wave absorber |
| 10/13/2004 | EP1466868A1 Black composite oxide particle and method for production thereof |
| 10/13/2004 | EP1465757A2 A thermal process involving cold rf irradiated liquid as a core method for producing nano-size particles |
| 10/13/2004 | CN1535925A Preparation of high-ferrite multifunctional water treatment agent and technique for removing pollution |
| 10/13/2004 | CN1170949C Method for selective precipitating arsenic from steel-containing ferric and ferric solution |
| 10/12/2004 | US6803130 Resin and spinel ferrite containing oxides of cobalt and iron as well as magnesium, copper and/or zinc for high frequency electronics; high permeability core; miniaturization |
| 10/07/2004 | US20040195546 To produce electrode having high capacity, and charging and discharging efficiency |
| 10/07/2004 | US20040194664 Low sulfur red iron oxide useful as a catalyst or catalyst component and a process for making low sulfur red iron oxide |
| 10/05/2004 | US6800271 Crosslinking polyvinyl alcohol with an iron salt in the presence of sodium tetraborate; soaking the gel for 2-4 hours in sodium hydroxide solution; and washing with di water to remove nacl and rocovering the product |
| 10/05/2004 | US6800215 Forming high electric resistance, smaller size and weight coil material; calcining oxides of iron, zinc, copper, and nickel then adding manganese dioxide |
| 10/05/2004 | CA2455428C Production of cationically homogeneous refractory oxides of nanometer-scale particle size diameters at reduced temperatures |
| 09/30/2004 | WO2004083124A1 Noble metal-magnetic metal oxide composite particle and method for producing same |
| 09/30/2004 | US20040191628 Non-aqueous electrolyte secondary battery, positive electrode active material and method of manufacturing the same |
| 09/30/2004 | US20040191150 Producing high surface area catalysts; heat treating noble metal component with amorphous rare earth and transition metal precursors |
| 09/29/2004 | EP1462428A2 Method of producing perovskite complex oxide and precursor substance used in the method |
| 09/29/2004 | EP1462427A2 Perovskite complex oxide and method of producing the same |
| 09/29/2004 | CN1532967A Non-aqueous electrolyte secondary cell, positive pole active matter and its producing method |
| 09/29/2004 | CN1168665C Prepn process of nano granular Fe3O4 |
| 09/28/2004 | US6797431 Mixing, milling and sintering lithium phosphate (li3po4), iron phosphate (fe3(po4)2) or its hydrates to make lithium iron phosphate (lixfepo4); controlling temperature, oxygen concentration during sintering |
| 09/28/2004 | US6797380 Crystalline mixed spinel ferrite core and a polymerizable outer coating |
| 09/23/2004 | WO2004081144A1 Iron compounds and use as a fire retardant or sound suppressant |
| 09/23/2004 | US20040185345 A cathode active material lithium manganese composite oxide with spinel structure and suppression of deterioration |
| 09/23/2004 | US20040185344 Solid state reactions with inorganic cations with reducing carbon |
| 09/23/2004 | US20040185227 non-magnetic support; primer layer on one surface of support; magnetic layer; and back coat layer on other surface of non-magnetic support, wherein primer layer has thickness of 1.3 mu m or less, and magnetic recording medium has edge weave of 3.2 mu m or less; high recording capacity |
| 09/23/2004 | CA2517460A1 Iron compounds and use as a fire retardant or sound suppressant |
| 09/22/2004 | CN2642775Y Equipment system for treating oil-containing iron scale of rolled steel |
| 09/21/2004 | US6794085 Metal oxide containing multiple dopants and method of preparing same |
| 09/21/2004 | US6793842 Controlling particle size, magnetism |
| 09/16/2004 | US20040179997 Single-step simple and economical process for the preparation of nanosized acicular magnetic iron oxide particles of maghemite phase |
| 09/16/2004 | US20040179992 Liquid ferric sulfate manufacturing process |
| 09/15/2004 | EP1456318A1 Nanoparticulate preparation |
| 09/15/2004 | CN1528675A Method for preparing hollow super paramagnetic ferriferrous oxide nano fine grain |
| 09/15/2004 | CN1167088C Ferrite raw material powder made by spraying pyrolysis method and making method of freeimagnetics |
| 09/15/2004 | CN1167087C Ferrite magnet powder and magnet using said powder and method for preparing same |
| 09/14/2004 | US6790429 Mxing an iron salt and an oxidizing agent in a mixing chamber; delivering portion of the mixture to a reaction chamber; continuously generating ferrate in the reaction chamber; delivering at least a portion of the ferrate to a site of use |
| 09/14/2004 | US6790379 Magnetic ferrite composition and process of production thereof |
| 09/14/2004 | US6790274 Heating the iron microspheroidal particles in an agitated aqueous solution comprising formic acid, to decompose the acid, oxidation with oxygen or hydogen peroxide to form feooh or fe2o3 inorganic pigments |
| 09/08/2004 | EP1453985A1 A method for precipitating iron from a zinc sulphate solution as hematite |
| 09/08/2004 | CN1528002A Electromagnetic wave absorbing thermally conductive composition and thermosoftening electromagnetic wave absorbing heat dissipation sheet and method of heat disspation work |
| 09/08/2004 | CN1166021C Electrochemical reactor cell for reacting oxygen-consuming gas with oxygen-containing gas |
| 09/07/2004 | US6786950 High purity fine metal powders and methods to produce such powder |
| 09/02/2004 | DE10260736A1 Verfahren und Anlage zur Wärmebehandlung von feinkörnigen Feststoffen Method and apparatus for heat treatment of fine-grained solids |
| 09/01/2004 | EP1453070A2 Bonded magnet, magnet roll, ferrite powder used therefor and method for producing same |
| 09/01/2004 | EP0684208B1 Ultrafine iron-containing rutile titanium dioxide particle and process for producing the same |
| 09/01/2004 | CN1524796A Method for synthesizing ferric oxide nanometer powder by hydrothermal back extraction |
| 08/26/2004 | WO2004072995A1 Ferrite magnetic powder and method for production thereof |
| 08/26/2004 | WO2004040593B1 Process for preparing nanosized acicular magnetic maghemite phase iron oxide particles |
| 08/26/2004 | US20040167037 iron chelating agents stable at pH as high as 11.5, particularly ferrous gluconates, are added to the fluid to precipate iron sulfide; enhances the resilience of the rheological properties of drilling fluids to hot rolling and comparable field conditions. |
| 08/25/2004 | EP1448293A1 A solid multicomponent mixed proton and electron conducting membrane |
| 08/25/2004 | CN1163415C Production process of high-purity iron oxide red by ferric material |
| 08/24/2004 | US6780555 Multilayer particles; metallic core without iron; layer of metallic alloy with iron; iron interface and iron oxide overcoating |
| 08/24/2004 | US6780393 Method of producing fine particles of metal oxide |
| 08/24/2004 | US6780344 Reduced insertion loss in high-frequency bands; accuracy |
| 08/19/2004 | WO2004069403A1 Apparatus for manufacturing particles using corona discharge and method thereof |
| 08/18/2004 | EP1446357A1 Method for preparing alkali metal ferrates and novel alkali metal ferrate granules |
| 08/18/2004 | CN1162875C Magnetic material and inducer |
| 08/18/2004 | CN1162874C Method for controlling intermodulation product of non-reciprocal circuit element |
| 08/18/2004 | CN1162232C White powder and method for production thereof |
| 08/12/2004 | WO2004068511A2 Formation of superparamagnetic particles |
| 08/11/2004 | CN1519205A Method for preparing ferrous sulphate |
| 08/11/2004 | CN1161797C Powder for making magnetic ferrite, magnetic, multilayer ferrite element and its making method |
| 08/10/2004 | US6773697 Iron oxide and silicon dioxide-titanium dioxide mixed oxide |
| 08/10/2004 | US6773619 Magnetic core for transformer, Mn-Zn based ferrite composition and methods of producing the same |
| 08/05/2004 | WO2004065306A1 Composite particle and process for producing the same |
| 08/05/2004 | DE10229761B4 Wässerige Dispersion, enthaltend pyrogen hergestellte Metalloxidpartikel und Phosphate, Verfahren zu deren Herstellung und deren Verwendung Aqueous dispersion containing pyrogenically produced metal oxide particles and phosphates, processes for their preparation and their use |
| 08/04/2004 | EP1443024A1 Iron oxide particles and method for production thereof |
| 08/04/2004 | EP1441977A1 Synthesis of mono-disperse and highly-crystalline nano-particles of metals, alloys, metal oxides, and multi-metallic oxides without a size-selection process |
| 08/04/2004 | CN1160255C Process for preparing iron oxide from iron sludge generated in iron powder reduction technology |
| 08/03/2004 | US6770773 Organic acid-Fe-OOH (ferroxane) particles and ferroxane-derived ceramics and ceramic membranes |
| 08/03/2004 | US6770256 Process for synthesizing metal oxides and metal oxides having a perovskite or perovskite-like crystal structure |
| 08/03/2004 | US6770255 Process for chlorine recovery |
| 07/29/2004 | US20040146855 Preparing ferric oxide cross-linked polysaccharide/starch/chitosan matrix for the separation, isolation, identification or purification of biological materials |
| 07/28/2004 | EP1440733A1 Magnetic particles |
| 07/28/2004 | EP1341724B1 Synthesis of lithium transition metal sulphides |
| 07/27/2004 | US6767529 Heating an alkaline component and an iron(ii) component in the form of aqueous solution; treating the suspension with an oxidizing agent; filtering the suspension, and washing, drying and grinding residue |
| 07/22/2004 | US20040139888 Containing nanofillers providing superior performance; refractive index, transparency reflection, resistivity, permittivity, permeability, coercivity, magnetic hysteresis, breakdown voltage; increased surface area, constrained domain sizes |
| 07/21/2004 | EP1438760A1 Lithium cell based on lithiated transition metal titanates |
| 07/21/2004 | EP1438270A1 Economical ferrite-type magnets with enhanced properties |
| 07/20/2004 | CA2395115C Preparation of lithium-containing materials |
| 07/15/2004 | WO2004058644A1 Method for producing surface-coated nanoscalar particles and suspensions containing said particles |
| 07/15/2004 | DE10261406A1 Verfahren zur Herstellung oberflächenbeschichteter nanoskaliger Teilchen und von Suspensionen, die diese enthalten A process for producing surface-coated nanoscale particles and of suspensions that contain this |
| 07/13/2004 | US6761839 Material for making hyper frequency multi-layer chip inductors with high performance and low sintering temperature and a process for preparing the material |
| 07/13/2004 | US6761830 Method for making m- type hexaferrite powders or wafers |
| 07/08/2004 | WO2004056464A1 Methods and apparatus for heat treatment in a fluidised bed |
| 07/07/2004 | CN1156406C Process of producing high-purity magnetic iron oxide with ferous sulfate as by-product of titanium white production |
| 07/07/2004 | CN1156405C Iron oxide red, its production method and use |
| 07/07/2004 | CN1156401C Calcium-iron oxide composite particles and resin molded product containing the same |
| 07/06/2004 | US6758986 Magnet powder and method for preparations thereof |
| 07/06/2004 | US6758894 Strontium iron manganese black pigment |
| 07/01/2004 | WO2004054710A1 Metal or metal oxide porous material prepared by use of dextran or related soluble carbohydrate polymer |
| 07/01/2004 | US20040126309 Method for producing metal fluoride materials |
| 06/24/2004 | WO2004052532A1 Improved arsenic removal media |
| 06/24/2004 | US20040121188 ferrite magnet with at least one of Co, Ni, Mn and Zn; portion of Sr, Ba, Pb or Ca is replaced with a rare-earth element (including Y) and Bi and always includes La; calcining and pulverization; hexagonal M-type magnetoplumbite structure; low cost |
| 06/24/2004 | US20040119055 useful as phase shifters, matching networks, oscillators, filters, resonators, and antennas containing interdigital and trilayer capacitors, coplanar waveguides and microstrips. |