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| Number | Title | Issue Date |
| 7799733 | Process for preparing high surface area carbon The present invention provides a process for making activated carbon having BET surface area up to 2000 m2/g with pore diameter in the range 17-21 Å suitable for fabricating fuel cell and ultracapacitor electrode from coconut shell by treating carbon gr... | 09/21/2010 |
| 7709415 | Method for manufacturing activated carbon, polarizable electrode, and electric double-layered capacitor Activated carbon useful as polarizable electrode material for an electric double-layer capacitor can be obtained by mixing a carbonaceous material and an alkali metal hydroxide while maintaining a solid state, granulating the obtained mixture while maintaining its s... | 05/04/2010 |
| 7691782 | Active carbon, production method thereof and polarizable electrode The present invention relates to an active carbon containing an alkaline earth metal compound inside the particle and having a specific surface area of 10 to 2,000 m2/g, which is suitable to be used for polarizable electrodes in an electric double layer c... | 04/06/2010 |
| 7256157 | Carbon material for electric double layer capacitor electrodes A carbon material for electric double layer capacitor electrodes which is obtained by a heat treatment and an activation treatment of a material pitch having a softening point in a range of 150 to 350° C., a ratio of amounts by atom of hydrogen to carbon (H/C) in a... | 08/14/2007 |
| 7252767 | Hydrous zirconium oxide, hydrous hafnium oxide and method of making same The present invention features a method of making hydrous zirconium oxide having desirable properties, including resistance to moisture content, predetermined particle size, and developed porosity and surface area. The inventive material is suitable for use as an io... | 08/07/2007 |
| 7232790 | Activated carbon, method for production thereof and use thereof A method for producing an activated carbon material, wherein the method comprises a step of thermally treating coal-based pitch at two temperature ranges of 400° C. to 600° C. and 600° C. to 900° C.; and a step of mixing the thus obtained carbonaceous material w... | 06/19/2007 |
| 7214646 | Method for producing activated carbon for electrode of electric double-layer capacitor To produce activated carbon for an electrode of an electric double-layer capacitor, the following steps are carried out sequentially: a step of subjecting a massive mesophase pitch to a pulverizing treatment to provide a pulverized powder; a step of subjecting the p... | 05/08/2007 |
| 7119047 | Modified activated carbon for capacitor electrodes and method of fabrication thereof A novel electrode and method of making the same. The electrode includes activated carbon that has been modified by treatment with an alkali solution and an acid, such as nitric acid, and then washed and dried. The carbon may then be annealed. The method of modifying... | 10/10/2006 |
| 7091156 | Activated carbon for use in electric double layer capacitors Activated carbon adapted for electric double layer capacitors is provided, which capacitors can give a large power density per unit volume and which capacitors, even when charge-and-discharge cycle is repeated under a large current or a constant voltage is continuou... | 08/15/2006 |
| 7068493 | Polarizing property electrode for electrical double layer capacitor and manufacturing method of polarizing property electrode for electrical double layer capacitor, and manufacturing method of electrode sheet for electrical double layer capacitor In an electrode drying process in which the electrode is molded in a sheet shape by kneading activated carbon powder, a binding material and an organic solvent for lubrication and a polarizing property electrode is formed by heating and removing the organic solvent ... | 06/27/2006 |
| 6992037 | Precious metal catalyst for debenzylation One aspect of the invention relates to catalyst composite containing a metal catalyst and a specifically defined carbon support containing a carbonaceous material. For example, the carbon support may have a total pore surface area of about 800 m2/g or mor... | 01/31/2006 |
| 6696384 | Method of making shaped activated carbon A new shaped activated carbon and the method of its manufacture are disclosed. The invention resides in the crosslinking of a polymeric cellulose, such as sodium carboxymethylcellulose (CMC), within the carbon bodies after they are shaped, employing the C... | 02/24/2004 |
| 6599856 | Formed activated carbon and process for producing the same A formed activated carbon has a Kiya crushing strength of 1 kg or more and a specific heat of 0.4 J/K.multidot.cc or more at 25° C.... | 07/29/2003 |
| 6592838 | Activated carbon for use in electric double layer capacitor and method of producing the same Activated carbon for use in an electric double layer capacitor which has at least activated carbon, electrolyte solution and a separator, the activated carbon having properties of: the total specific surface area of 1000 m2 /g or larger; the po... | 07/15/2003 |
| 6589904 | Activated carbon and method for producing it The present invention provides an activated carbon produced by a process, which includes: activating a carbonaceous material, to obtain an activated carbonaceous material; and contacting the activated carbonaceous material with an acid. Another embodiment of t... | 07/08/2003 |
| 6471745 | Nanoporous carbon catalytic membranes and method for making the same Catalytic membranes comprising highly-dispersed, catalytically-active metals in nanoporous carbon membranes and a novel single-phase process to produce the membranes.... | 10/29/2002 |
| 6472343 | Shaped activated carbon A new shaped activated carbon and the method of its manufacture are disclosed. The invention resides in the crosslinking of a polymeric cellulose, such as sodium carboxymethylcellulose (CMC), within the carbon bodies after they are shaped, employing the C... | 10/29/2002 |
| 6471936 | Method of reversibly storing H2 and H2 storage system based on metal-doper carbon-based materials This invention is directed to a method of reversibly storing hydrogen comprising exposing a solid sorbent of metal-doped carbon-based material to a hydrogen atmosphere at a temperature of from about 250 K to about 973 K under ambient or higher pressure. T... | 10/29/2002 |
| 6332916 | Activated carbon filter and process for the separation of noxious gases Activated carbon filters containing transition metals, are prepared by (a) exchanging the transition metal with a cellulose ion exchange material to produce a cellulose material containing the transition metal; (b) charring of the product of (a); activati... | 12/25/2001 |
| 6268307 | Titania bound sodium titanate ion exchanger A titania bound ion exchange composition is prepared by admixing crystalline sodium titanate and a hydrolyzable titanium compound and then drying the titania bound crystalline sodium titanate. The dried titania bound ion exchange composition is subjected ... | 07/31/2001 |
| 6251822 | Method of making activated carbon derived from pitches A method of making activated carbon of various pore size distributions involves an providing oxidized pitch, carbonizing the pitch when the softening point of the pitch is less than about 250° C., and activating the pitch to produce activated carbon. A c... | 06/26/2001 |
| 6248691 | Method of making mesoporous carbon Mesoporous carbon and method of making involves forming a mixture of a high carbon-yielding carbon precursor that when carbonized yields greater than about 40% carbon on a cured basis, and an additive that can be catalyst metal and/or low carbon-yielding ... | 06/19/2001 |
| 6225256 | Activated carbon feedstock An activated carbon and method of producing and using same. Pecan hulls are fractured to produce a particle size of less than a predetermined size (e.g., 75 microns), chemically activated in an acid solution, carbonized, and washed.... | 05/01/2001 |
| 6156697 | Method of producing high surface area carbon structures A method of producing a continuous carbon structure involves providing an inorganic support and a synthetic carbon precursor, contacting the inorganic support with the carbon precursor, curing and carbonizing the carbon precursor. Prior to the carbonizing... | 12/05/2000 |
| 6140493 | Method of synthesizing diverse collections of oligomers A general stochastic method for synthesizing random oligomers can be used to synthesize compounds to screen for desired properties. The use of identification tags on the oligomers facilitates identification of oligomers with desired properties.... | 10/31/2000 |
| 6117810 | Manufacturing method of complex molecular sieve compound The present invention relates to a manufacturing method of molecular sieve compound and in particular, to a manufacturing method whereas crystalline aluminosilicate salt is formed in the pores of activated carbon and thereby possessing both hydrophilic an... | 09/12/2000 |
| 6114280 | Highly activated carbon from caustic digestion of rice hull ash and method Disclosed are highly activated carbon particles derived from caustic digestion of rice hull ash obtained from thermal pyrolysis of rice hulls having an iodine number of at least 650 to 1000. The activated carbon pores are free of silicate residue from the... | 09/05/2000 |
| 6060424 | High energy density carbons for use in double layer energy storage devices The present invention relates to carbon and methods for preparing same. In particular, this invention relates to the preparation of novel carbons derived from lignocellulosic materials (particularly wood-based lignocellulosic materials) which are useful f... | 05/09/2000 |
| 6043183 | High power density carbons for use in double layer energy storage devices The present invention relates to carbon and methods for preparing same. In particular, this invention relates to the preparation of novel carbons derived from lignocellulosic materials (particularly wood-based lignocellulosic materials) which are useful f... | 03/28/2000 |
| 6022489 | Reagent for decomposing fluorocarbons Fluorocarbons including perfluorocarbons and hydrofluorocarbons are highly efficiently decomposed by contacting a gaseous fluorocarbon with a reagent comprising carbon and an alkaline earth metal or carbon, an alkaline earth metal and an alkali metal at a... | 02/08/2000 |
| 6015816 | Antimicrobial compositions The present invention relates to a method of controlling microbial growth on a material. The method includes applying to the material an antimicrobial agent including colloid particles having an ion exchange capacity and having attached a quantity of one ... | 01/18/2000 |
| 5998328 | Method of making activated carbon-supported catalysts A method for making an activated carbon-supported catalyst involves providing an inorganic support having a continuous coating of activated carbon, activated carbon being derived from a synthetic carbon precursor, introducing a catalyst precursor into the... | 12/07/1999 |
| 5990041 | Mesoporous activated carbon filaments This invention relates to a mesoporous carbon material in the form of filaments having a high surface area. A process is also provided to produce mesoporous carbon material of high surface area. The process comprises drying a carbon material, surface oxid... | 11/23/1999 |
| 5965483 | Highly microporous carbons and process of manufacture A process for further chemical activation of activated carbon is disclosed comprising activation of an active carbon precursor material with a potassium hydroxide solution, pre-drying the blend to 5% to 15% moisture content, activating this blend at from ... | 10/12/1999 |
| 5948398 | Deodorant comprising metal oxide-carrying activated carbon A metal oxide-carrying activated carbon having an oxidation catalytic activity comprises a treated activated carbon obtained by carbonizing a carbon material, activating the obtained carbon with an activating gas comprising carbon dioxide and water vapor,... | 09/07/1999 |
| 5914294 | Adsorptive monolith including activated carbon and method for making said monlith An adsorptive monolith made by extruding a mixture of activated carbon, a ceramic forming material, a flux material, and water, drying the extruded monolith, and firing the dried monolith at a temperature and for a time period sufficient to react the cera... | 06/22/1999 |
| 5891822 | Production process of active carbon used for electrode for organic solvent type electric double layer capacitor Disclosed herein is a process for producing active carbon suitable for use in electrodes for an organic solvent type electric double layer capacitor, comprising calcining an easily graphitizable organic substance and then subjecting the resultant carboniz... | 04/06/1999 |
| 5885925 | Titania bound sodium titanate ion exchanger This invention is method for preparing a titania bound ion exchange composition comprising admixing crystalline sodium titanate and a hydrolyzable titanium compound and, thereafter drying the titania bound crystalline sodium titanate and subjecting the dr... | 03/23/1999 |
| 5858911 | Method of producing activated carbon Disclosed is a rigid fine-celled foam composition and a method of producing it. The foam composition is nontoxic, environmentally friendly, has improved absorption/adsorption and retention of liquids, is not as hard as prior art foams, does not include po... | 01/12/1999 |
| 5719101 | Porous granular material obtained from wool scouring liquor, method for the manufacture thereof and applications The porous granular material according to the invention comprises carbon, silica, water-soluble mineral salts and water-insoluble mineral salts, does not disintegrate in the presence of water and has a particle size of approximately 1 to 5 mm, preferably ... | 02/17/1998 |
