| Patent application number | Description | Published |
|---|
| 20100014419 | APPARATUS AND METHOD FOR IMPROVING TRANSPORT CONTROL PROTOCOL PERFORMANCE USING PATH RECOVERY NOTIFICATION OVER WIRELESS NETWORK - Provided are an apparatus and method for improving transmission control protocol (TCP) performance using path recovery notification over a wireless network. The apparatus includes: a path recovery manager which detects a mobile host recovered from a temporary disconnection state and then outputs a detection signal to notify the detection result; a path recovery notification manager which receives the detection signal and generates an ACK (acknowledgement) packet to inform a transmitting end that the mobile host is recovered; and a first packet transceiver which transmits/receives the generated ACK packet and a data packet. Accordingly, a temporary disconnection state of a wireless network is explicitly informed to a transmitting end so as to transmit only lost packets without performing unnecessary congestion control, thereby improving TCP performance. | 01-21-2010 |
| 20100151298 | PROTON CONDUCTOR FOR FUEL CELL, ELECTRODE FOR FUEL CELL INCLUDING THE PROTON CONDUCTOR, AND FUEL CELL INCLUDING THE ELECTRODE - A proton conductor for a fuel cell, an electrode for a fuel cell that includes the proton conductor, and a fuel cell including the electrode of which the proton conductor includes a phosphoric acid-based material, and a C1-C20 ammonium perfluoroalkylsulfonate dissolved in the phosphoric acid-based material. | 06-17-2010 |
| 20100167103 | SOLID PROTON CONDUCTOR FOR FUEL CELL AND FUEL CELL USING THE SAME - A solid proton conductor for a fuel cell and a fuel cell employing the solid proton conductor, the solid proton conductor including a sulfonated polymer, and a hydrophilic polymer having an acid group, constituting a polymer solvent, providing a proton mobile path. | 07-01-2010 |
| 20110059385 | Polymer membrane composition for fuel cell, polymer membrane prepared therefrom, membrane-electrode assembly, fuel cell including the same, and associated methods - A polymer membrane composition for a fuel cell, a polymer membrane prepared therefrom, a membrane electrode assembly, a fuel cell including the same, and associated methods, the polymer membrane composition including a polymer, the polymer including a cation exchange group and a carbon double-bond-containing cross-linkable group, a (meth)acryl-based compound, the (meth)acryl-based compound including a cation exchange group, and a polymerization initiator. | 03-10-2011 |
| 20110143258 | ORGANIC/INORGANIC COMPLEX PROTON CONDUCTOR, ELECTRODE FOR FUEL CELL INCLUDING ORGANIC/INORGANIC COMPLEX PROTON CONDUCTOR, ELECTROLYTE MEMBRANE FOR FUEL CELL INCLUDING ORGANIC/INORGANIC COMPLEX PROTON CONDUCTOR, AND FUEL CELL INCLUDING ORGANIC/INORGANIC COMPLEX PROTON CONDUCTOR - Organic/inorganic complex proton conductors are provided which display high proton conductivity over a wide temperature range. Electrodes for fuel cells which include the organic/inorganic complex proton conductors are also provided. The invention also advantageously provides electrolyte membranes for fuel cells including the organic/inorganic complex proton conductors, and fuel cells including the organic/inorganic complex proton conductors. | 06-16-2011 |
| 20110189549 | REDOX FLOW BATTERY - A redox flow battery has a high energy density and an excellent charge and discharge efficiency because re-precipitation is prevented in an electrolyte solution or eduction is prevented in an electrode during reduction of a metal ion used as an electrolyte. | 08-04-2011 |
| 20110196051 | Electrolyte membrane using polybenzoxazine based compound - An electrolyte membrane includes a cross-linked reaction product of a benzoxazine monomer and a cross-linkable compound. The electrolyte membrane is impregnated with 300 to 600 parts by weight of phosphoric acid based on 100 parts by weight of the electrolyte membrane, and has a yield strain 0.5% or less, and a yield stress 0.3 Mpa or less. The cross-linked material has a strong acid trapping ability with respect to the benzoxazine compound and excellent mechanical properties due to a cross-linkage. Also, the solubility of the cross-linked material in polyphosphoric acid is low, thereby showing excellent chemical stability. Accordingly, when the cross-linked material is used, an electrolyte membrane having an excellent liquid supplementing ability and excellent mechanical and chemical stability at a high temperature can be obtained. The cross-linked material can be obtained by a simple polymerization process by combining a benzoxazine monomer and a crosslinkable compound and by using heat instead of using a polymerization initiator or a cross-linking agent. | 08-11-2011 |
| 20110223520 | CATALYST COMPOSITION INCLUDING PROTON CONDUCTIVE METAL OXIDE AND FUEL CELL EMPLOYING ELECTRODE USING CATALYST COMPOSITION - A catalyst composition including a proton conductive metal oxide, and a fuel cell employing an electrode using the same. The proton conductivity of an electrode catalyst layer and distribution of a phosphoric acid electrolyte are enhanced, and thus the performance of the fuel cell is enhanced. | 09-15-2011 |
