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| Number | Title | Issue Date |
| 7261941 | Sharp end, multi-layer carbon nano-tube radial aggregate and method of manufacturing the aggregate A method of manufacturing a acute tip, multi-wall carbon nanotube radial aggregate, comprising the steps of leading a graphite rod into plasma flame generated in a hydrogen-added inert gas atmosphere to evaporate carbon from the graphite rod and stacking, on the sur... | 08/28/2007 |
| 7150840 | Graphite fine carbon fiber, and production method and use thereof A graphitized fine carbon fiber comprising a hollow space extending along its center axis, and a plurality of graphene sheets, wherein the fiber has an end surface comprising a portion of discontinuity in which ends of graphene sheets are not bonded to one another a... | 12/19/2006 |
| 4247340 | Purification of sugars using emulsion anion exchange resins Impure sugar solutions containing charged particulate impurities are treated with strongly basic emulsion anion exchange resin particles to form flocs of the charged particulate impurities and the resin particles. These flocs remove dissolved ionic impuri... | 01/27/1981 |
