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| Number | Title | Issue Date |
| 7255798 | Recycling of used perfluorosulfonic acid membranes A method for recovering and recycling catalyst coated fuel cell membranes includes dissolving the used membranes in water and solvent, heating the dissolved membranes under pressure and separating the components. Active membranes are produced from the recycled mater... | 08/14/2007 |
| 7026058 | Multilayered hydrogen absorbing body A multilayered hydrogen absorbing body is provided which is formed by laminating at least two types of hydrogen absorbing materials. The degrees of strains cause due to absorption/desorption of hydrogen are different between the hydrogen absorbing materials adjacent... | 04/11/2006 |
| 6793799 | Method of separating and recovering rare FP in spent nuclear fuels and cooperation system for nuclear power generation and fuel cell power generation utilizing the same A method of separating and recovering useful rare FP contained in spent nuclear fuels (platinum group element (Ru, Rh, Pd), Ag, Tc, Se, Te) selectively and at high recovery percentage is provided. Nitric acid solution to be processed containing useful rare FP in spe... | 09/21/2004 |
| 6390275 | High speed parcel sorter A conveyor system particularly configured for discrete parcels, which combines tilting tray concepts with "cross-belt" or powered conveyor concepts, which allows for the acceleration of parcels above one gravity force "G". In one configuration, two levels... | 05/21/2002 |
| 5785837 | Preparation of transparent conductors ferroelectric memory materials and ferrites A process for the preparation by electrodeposition of metal oxide film and powder compounds for ferroelectric memory materials and ferrites wherein the metal oxide includes a plurality of metals. The process comprises providing an electrodeposition bath, ... | 07/28/1998 |
| 5487819 | Production of metals from minerals A process for producing one or more metals from a mineral feedstock (12) is defined. The mineral is fed to a leaching apparatus (10) wherein it is contacted with electrolyte (14). The leaching apparatus has zones of decreasing oxidation potential (17, 18,... | 01/30/1996 |
| 5393389 | Electrolytic process for obtaining high purity platinum from contaminated platinum The electrolytic process for obtaining platinum of high purity from a concentrated hydrochloric acid solution of contaminated platinum containing base and noble metal impurities includes electrolyzing the hydrochloric acid solution containing the contamin... | 02/28/1995 |
| 5393388 | Electrolytic process for extracting high purity platinum from platinum alloys The electrolytic process for obtaining platinum of high purity from concentrated hydrochloric acid solutions of a platinum alloy containing Rh, Ir and/or Pd proceeds with simultaneous depletion of noble and base metal impurities from the solution. This el... | 02/28/1995 |
| 5133843 | Method for the recovery of metals from the membrane of electrochemical cells A method for rejuvenating a membrane or diaphragm from an electrochemical cell which comprises the steps of treating the membrane or disphragm with an inorganic acid at an elevated temperature so as to dissolve metallic particles and then optionally treat... | 07/28/1992 |
| 4111688 | Method for separating gold from acid aqueous solution A method for separating gold etc. from acid aqueous solution comprising a first step in which a silver amalgam with high silver content is added to acid aqueous solution containing gold to precipitate metallic gold, a second step in which silver amalgam w... | 09/05/1978 |
