| Patent application number | Description | Published |
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| 20100117832 | SYSTEM AND METHOD FOR MANAGING INFORMATION OF LOADING GOODS - Disclosed is an information managing system and method according to goods loading. The information managing system includes a first antenna for identifying a first tag included by transportation means, a second antenna for identifying a second tag included by goods, a reader for generating tag information which is identification results generated by respectively identifying the corresponding tags through the first antenna and the second antenna, and a control device for mapping information of the first tag and information of the second tag based on the tag information. | 05-13-2010 |
| 20100145761 | SYSTEM AND METHOD FOR ALTERNATIVE SIMULATION OF LOGISTICS INFRASTRUCTURE - A future amount is created through demand estimation by rectifying data administrated in a logistics infrastructure through a system and a method for alternative simulation of a logistics infrastructure. In addition, an infrastructure load by a future year amount is analyzed and an alternative is selected through the load analysis. | 06-10-2010 |
| 20110035249 | MAIL ACCEPTANCE SYSTEM AND METHOD - A mail acceptance system selects a mail center that is near a client by using mail acceptance information input by the client, calculates transport cost of the selected mail center, selects a mail center that is appropriate for making loads of mail centers equal and minimizing the transport cost as a suitable mail center from among the selected mail centers, and sets a visit and acceptance schedule for visiting and accepting the client's mail. | 02-10-2011 |
| 20110057038 | ANTENNA, AND RADIO FREQUENCY IDENTIFYING DEVICE AND METHOD - A radio frequency identifying device minimizes a null point area within a radiation pattern by horizontally or vertically vibrating an antenna plate radiating a radio frequency beam by using at least one vibration motor. | 03-10-2011 |
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| 20110318193 | LINEAR COMPRESSOR - The present invention discloses a linear compressor which makes it possible to adjust a variable rate of a cooling capacity. The linear compressor includes a fixed member having a compression space therein, a movable member linearly reciprocated in the fixed member to compress a refrigerant sucked into the compression space, one or more springs provided to elastically support the movable member in the motion direction of the movable member, a motor unit including a motor connected to the movable member to linearly reciprocate the movable member in the axial direction and a capacitor connected in series to the motor, and a motor control unit controlling an AC voltage applied to the motor to adjust a variable rate of a cooling capacity by the reciprocation of the movable member. | 12-29-2011 |
| 20120034104 | LINEAR COMPRESSOR - The present invention discloses a linear compressor which makes it possible to precisely operate a voltage using a current without having a high-capacity capacitor connected in series to a motor. The linear compressor comprises a mechanical unit including a fixed member having a compression space therein, a movable member linearly reciprocated in the fixed member to compress a refrigerant sucked into the compression space, one or more springs provided to elastically support the movable member in the motion direction of the movable member, and a motor connected to the movable member to linearly reciprocate the movable member in the axial direction, and an electric control unit including a rectification unit receiving AC power and outputting a DC voltage, an inverter unit receiving the DC voltage, converting the DC voltage to an AC voltage according to a control signal, and supplying the AC voltage to the motor, a current sensing unit sensing a current flowing between the motor and the inverter unit, an integrator circuit unit integrating a voltage corresponding to the current from the current sensing unit, and a control unit receiving an integrated value from the integrator circuit unit and controlling the AC voltage applied to the motor to permit the reciprocation of the movable member. | 02-09-2012 |
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| 20080290831 | FUEL CELL SYSTEM COMPRISING BATTERY AND METHOD OF CONSUMING RESIDUAL FUEL IN THE FUEL CELL SYSTEM - A fuel cell system having a back-up battery and a method of consuming residual fuel in the fuel cell system in which the fuel cell system includes a fuel cell, a system controller, a back-up battery, a converter, a fuel supply control, and a driver to drive the fuel supply control, and a charger disposed between the converter and a load. A power output end of the charger is directly connected to the back-up battery via a switch. The converter includes a first converter connected to the back-up battery and a second converter connected to the fuel cell, and the first and second converters are commonly connected to the charger. | 11-27-2008 |
| 20080311440 | FUEL CELL SYSTEM AND METHOD OF OPERATING THE SAME - A fuel cell system includes a power unit that generates power using a fuel; a fuel storage unit that stores the fuel; a fuel supply device that conveys the fuel from the fuel storage unit to the power unit; and a control unit that controls the supply of the fuel and the generation of power. The fuel supply device includes a fuel supply control device that controls the supply of fuel according to a signal generated by the control unit. The control unit includes a fuel control unit that generates the signal according to the information of the fuel storage unit and the state information of the power unit. | 12-18-2008 |
| 20090155654 | HEAT RECOVERY APPARATUS AND FUEL CELL HAVING THE SAME - Provided are a heat recovery apparatus recovering heat generated from a membrane electrode assembly (MEA) and transmitting the heat to a fuel spreader so that a temperature difference between the MEA and the fuel spreader inside a fuel cell is reduced, and a fuel cell having the heat recovery apparatus. The fuel spreader supplies fuel having a uniform concentration to the MEA through the heat recovery apparatus, so that a fuel cell having a reduced total volume, a stable performance, and increased energy efficiency can be provided. | 06-18-2009 |
| 20090169966 | FUEL DIFFUSION UNIT, FUEL SUPPLY UNIT, AND FUEL CELL SYSTEM INCLUDING THE SAME - A fuel diffusion unit including: a fuel diffusion plate; a diffusion sheet disposed on fuel diffusion plate, to evenly distribute a fuel to the fuel diffusion plate; a primary transportation unit disposed on the diffusion sheet; secondary transportation units connected to the primary transportation unit, to distribute the fuel to the fuel from the primary transportation unit to the diffusion sheet. The diffusion sheet has a wetting direction that allows the fuel to flow in a predetermined direction. The fuel diffusion unit can be included in a fuel supply unit and a fuel cell system. | 07-02-2009 |
| 20090176140 | FUEL CELL PROVIDING IMPROVED DISPOSING STRUCTURE FOR UNIT CELLS - A fuel cell including a plurality of unit cells that each includes an anode, an electrolyte membrane, and a cathode. The unit cells are stacked together, such that the unit cells form rows and furrows. The fuel cell can further include an anode frame to support an anode side of the fuel cell stack, and a cathode frame to support a cathode side of the fuel cell stack. The fuel cell can include reinforcing members to support either of the frames. | 07-09-2009 |
| 20100173211 | FUEL CELL SYSTEM AND FUEL CELL POWER MANAGING METHOD - A fuel cell system and a fuel cell power managing method in which the fuel cell system controls a current output of a fuel cell by adjusting a target voltage value of the fuel cell according to a difference between a current value of the fuel cell and a target constant current value. By doing so, the fuel cell system may allow the fuel cell to stably and constantly output a constant current. | 07-08-2010 |
| 20110217604 | Recycler, water management system of fuel cell comprising the same, fuel cell comprising the water management system, and method of measuring water level - A recycler of a fuel cell includes two electrodes, a rotor interposed between the two electrodes, and an insulating container surrounding and receiving the two electrodes and the rotor. A water management system of the fuel cell includes the recycler, and the fuel cell includes the water management system. A method of measuring a water level in the recycler includes measuring a conductivity of water separated in the recycler is measured. | 09-08-2011 |
| 20110244351 | OPERATING METHOD OF FUEL CELL SYSTEM - A method of operating a fuel cell includes: generating an electrical power in a fuel cell stack while no fuel is being supplied from a fuel tank; reducing an output voltage of the electrical power toward a target voltage to increase an output current of the electrical power; measuring a rate of increase of the output current; starting supply of fuel to the fuel cell stack when the rate of increase of the output current is below a threshold rate; and controlling a fuel concentration in the fuel cell stack to maintain the output current at a target current level. | 10-06-2011 |
| 20120013196 | Fuel cell system and power managing method of the same - A fuel cell system, which provides output power of at least one of a fuel cell and a battery to a load, selects any one operating mode from among various operating modes of the fuel cell system based on a change in performance of the battery due to use of the battery, and controls supplying of output power of the fuel cell and output power of the battery to the load according to the selected operating mode. | 01-19-2012 |
