Patent application number | Description | Published |
20090003890 | DEVELOPING UNIT AND AN IMAGE FORMING APPARATUS HAVING THE SAME - A developing unit which has an improved structure to limit pressure between a developing member and a regulation roller to a regular range, and an image forming apparatus having the same are provided. A developing unit includes a developing member to develop an electrostatic latent image on a photoconductive medium using a developer, a regulation unit to press toward the developing member to regulate a layer of the developer supplied on the developing member, and a limit unit to limit pressure between the developing member and the regulation unit. | 01-01-2009 |
20090021896 | PORTABLE TERMINAL - A portable terminal having a first body, a second body moveable with respect to the first body, and a swivel assembly that connects the second body to the first body is provided. The swivel assembly is configured to allow the second body to rotate in a substantially planar motion with respect to the first body between a closed configuration and an open configuration. The swivel assembly includes a spacing unit displacing the second body from the first body while the second body is rotated with respect to the first body. | 01-22-2009 |
20090325009 | Electric power supply apparatus and portable electronic device having the same - An electric power supply apparatus and a portable electronic device equipped with the electric power supply apparatus are disclosed. The electric power supply apparatus can include: a replaceable cartridge that supplies hydrogen or electrical power; a housing that forms a cavity, in which the cartridge may be inserted; a stack connected with the cartridge and configured, if the cartridge is supplying hydrogen, to receive the hydrogen from the cartridge and generate electrical power; and a circuit unit electrically connected with the cartridge and the stack that determines the type of the cartridge and supplies electrical power to the electronic device. With certain embodiments of the invention, a device can be recharged using replaceable cartridges. Also, various types of cartridges can be used in a single system, allowing a higher level of compatibility. | 12-31-2009 |
20100009231 | STACK AND FUEL CELL POWER GENERATION SYSTEM HAVING THE SAME - A stack and a fuel cell power generation system equipped with the stack are disclosed. In accordance with an embodiment of the present invention, the stack, which generates electrical energy by reacting hydrogen with oxygen and in which the hydrogen is supplied as a fuel and the oxygen is in the air, includes: a membrane electrode assembly (MEA), which includes an electrolyte membrane and a pair of electrodes coupled to either surface of the electrolyte membrane; and a pair of current collectors, which is formed on either surface of the membrane electrode assembly, in which the current collector includes: an insulating polymer film; and a conductive adhesive layer, which is interposed between the insulating polymer film and the membrane electrode assembly. | 01-14-2010 |
20100062300 | FUEL CELL POWER GENERATION SYSTEM - A fuel cell power generation system is disclosed. The fuel cell power generation system in accordance with an embodiment of the present invention includes: a stack, which produces electrical energy by reacting hydrogen with oxygen and in which the hydrogen is supplied as fuel and the oxygen is in the air; a hydrogen tank, which supplies fuel comprising hydrogen to the stack; and a heat transfer tape, which transfers heat generated from the stack to the hydrogen tank. The fuel cell power generation system can improve the efficiency of supplying hydrogen by supplying waste heat generated from the stack to the hydrogen tank through the use of the heat transfer tape without a heat supplying device and be applied to a mobile device due to the reduced volume of the fuel cell power generation system. | 03-11-2010 |
20100081490 | SLIDE MODULE AND PORTABLE TERMINAL HAVING THE SAME - A portable terminal includes a first body, a second body, and a slide module slidably coupling the first body and the second body, the first body and the second body sliding with respect to each other via the slide module, wherein the slide module includes a first slide member, a second slide member configured to slide with respect to the first slide member between a first position and a second position, and a fixation unit configured to position the first slide member and the second slide member stably at one of the first and second positions, wherein the fixation unit is further configured to allow only a sliding movement between the first and the second positions in a vertical direction, inhibiting relative movement of the first and second slide members in directions other than the vertical direction | 04-01-2010 |
20110008716 | FUEL CELL INCLUDING SUPPORT HAVING MESH STRUCTURE - Disclosed is a solid oxide fuel cell, which includes a support having a mesh structure, an anode layer formed on an outer surface of the support, an electrolyte layer formed on an outer surface of the anode layer, and a cathode layer formed on an outer surface of the electrolyte layer and also which is lightweight and enables current collection. | 01-13-2011 |
20110027682 | PORTABLE ELECTRONIC DEVICE COMPRISING FUEL CELL POWER SYSTEM - Disclosed herein is a portable electronic device including a fuel cell power system, including: a fuel storage tank for supplying fuel; a flat stack for generating electric energy using the fuel supplied from the fuel storage tank; a pressure control unit for controlling the pressure of the fuel supplied to the flat stack; a converter for converting the voltage of the electric energy generated from the flat stack; and a connector for transferring the electric energy converted through the converter to power terminals of the portable electronic device. The portable electronic device has optimal efficiency and is compatible with conventional portable electronic devices. | 02-03-2011 |
20110033770 | FUEL CELL STACK HAVING SINGLE BODY SUPPORT - Disclosed is a fuel cell stack having a single body support. The fuel cell stack includes a plurality of single body fuel cells each including a single body support having a plurality of cylindrical supports and a connector for connecting the cylindrical supports in parallel, a unit cell having a cathode layer, an electrolyte layer and an anode layer sequentially formed on an outer surface of the single body support and a connection member protruding outward from the cathode layer on one side of an outer surface of the cathode layer and spaced apart from the anode layer, and a plurality of connection plates which are alternately stacked with the single body fuel cells and in which one surface of the connection plates is in contact with the anode layer and the other surface thereof is in contact with the connection member, wherein the connection plates are made of metal to thus obviate a need for an additional current collector and are used to collect current. | 02-10-2011 |
20110033780 | FUEL CELL HAVING CURRENT - COLLECTABLE MANIFOLD - A fuel cell includes a cell unit and a manifold capable of collecting electric current. The cell unit includes a tube support composed of a conductive material, a unit cell laminated on an outer surface of the tube support, and a current collection layer laminated on an outer surface of the unit cell. The manifold includes an inner tube supplying gas into and electrically connected with the tube support, and an outer tube provided outside the inner tube and electrically connected with the current collection layer. By the provision of a current-collectable manifold, a separate metal form or metal wire for current collection is not | 02-10-2011 |
20110053032 | MANIFOLD FOR SERIES CONNECTION ON FUEL CELL - Disclosed is a manifold of a fuel cell, including a conductive support having an upper support member and a lower support member between which two or more anode-supported tubular unit fuel cells each comprising an anode layer, an electrolyte layer and a cathode layer formed in sequential order are disposed and which include an inner connector and an outer connector formed to be tightly fitted into an inner surface and around an outer surface of the unit fuel cells so as to electrically conduct the unit fuel cells, such that the unit fuel cells are alternately connected with the inner connector and the outer connector at an upper end and a lower end thereof thus forming an electrical series circuit. The manifold which is essentially manufactured to supply fuel to a solid oxide fuel cell is used to simply collect current from the fuel cell even without an additional current collector being used, and is configured such that unit fuel cells disposed in the manifold are connected in series. | 03-03-2011 |
20110053045 | SOLID OXIDE FUEL CELL AND METHOD OF MANUFACTURING THE SAME - Disclosed is a solid oxide fuel cell, including a polygonal tubular support an outer surface of which has a plurality of planes, a plurality of unit cells respectively formed on the plurality of planes of the tubular support, inner connectors for connecting the plurality of unit cells in series, and a pair of outer connectors for connecting the plurality of unit cells connected in series to a current collector, so that respective unit cells are connected in series on the planes of the tubular support, thus exhibiting excellent cell performance and high power density per unit volume, and maintaining high voltage upon collection of current to thereby reduce power loss due to electrical resistance. A method of manufacturing the solid oxide fuel cell is also provided. | 03-03-2011 |
20110053046 | STRUCTURE OF SOLID OXIDE FUEL CELL - Disclosed is a structure of a solid oxide fuel cell, including a porous tubular anode support having a plurality of through holes, and an electrolyte layer and a cathode layer sequentially formed on the inner surface of the tubular anode support, so that fuel flows via the plurality of through holes and air flows through the inside of the cathode layer, thus increasing a diffusion rate of fuel and air to thereby increase the reaction rate, resulting in excellent cell performance. This structure eliminates the flow of fuel and air around the outside of the fuel cell, thus preventing the formation of an oxidizing atmosphere at the inside and outside of the tubular cell, thereby increasing lifespan of the cell and ensuring cell reliability. | 03-03-2011 |
20110059388 | SOLID OXIDE FUEL CELL AND SOLID OXIDE FUEL CELL BUNDLE - Disclosed is a solid oxide fuel cell bundle, including a plurality of fuel cells each having a polygonal tubular support an outer surface of which has a plurality of planes, an outer connector formed on one plane among the plurality of planes of the tubular support, a plurality of unit cells respectively formed on two or more remaining planes of the tubular support except for the one plane, and inner connectors for connecting the unit cells and the outer connector in series, wherein the fuel cells is connected in series in such a manner that the outer connector of a fuel cell is bonded to the unit cell of an additional fuel cell, and the unit cells are connected in series, thus exhibiting excellent cell performance and high power density per unit volume, and maintaining high voltage upon collection of current to thereby reduce power loss due to electrical resistance. | 03-10-2011 |
20110065022 | SOLID OXIDE FUEL CELL - Disclosed herein is a solid oxide fuel cell, including: one or more unit cells, each being provided with a ceramic tubular support; a metal layer which is formed on an outer circumference of one end of each of the unit cells and collects a first electric current; a metal foam which is formed in each of the unit cells and collects a second electric current; and a manifold which is connected with one end of each of the unit cells to receive the first current collected in the metal layer and which is connected with the other end of each of the unit cells to receive the second current collected in the metal foam. The solid oxide fuel cell is advantageous in that since the metal foam and metal tube are employed, an additional current collector is not required, and the electric current generated from an internal electrode can be easily collected through a manifold by connecting the metal foam and metal tube with the manifold. | 03-17-2011 |
20120299879 | OPTICAL TOUCH SCREEN - The present invention relates to an optical touch screen which can recognize touch coordinates when the screen is touched by a finger, a touch pen, or the like. The optical touch screen comprises units for generating infrared light sources. A control unit calculates coordinates of an object being touched on the touch screen based on data detected by the infrared cameras. | 11-29-2012 |
20130002611 | CAMERA MODULE FOR AN OPTICAL TOUCH SCREEN - The present invention relates to a camera module which senses the position of an on object touching a touch surface of an optical touch screen. The camera module comprises one or more lenses, an optical path converting unit, and an image sensor. Each of the lenses is arranged such that the angle of view for the direction vertical to the touch surface is smaller than the angle of view in the direction horizontal to the touch surface. The optical path converting unit reflects light converging through the lenses in the direction vertical to the touch screen. The image sensor is arranged behind the lenses and in the direction horizontal to the touch surface so as to receive the light reflected by the optical path converting unit. | 01-03-2013 |
20130011767 | STRUCTURE OF SOLID OXIDE FUEL CELL - Disclosed is a structure of a solid oxide fuel cell, including a porous tubular anode support having a plurality of through holes, and an electrolyte layer and a cathode layer sequentially formed on the inner surface of the tubular anode support, so that fuel flows via the plurality of through holes and air flows through the inside of the cathode layer, thus increasing a diffusion rate of fuel and air to thereby increase the reaction rate, resulting in excellent cell performance. This structure eliminates the flow of fuel and air around the outside of the fuel cell, thus preventing the formation of an oxidizing atmosphere at the inside and outside of the tubular cell, thereby increasing lifespan of the cell and ensuring cell reliability. | 01-10-2013 |
20130078546 | SOLID OXIDE FUEL CELL AND SOLID OXIDE FUEL CELL MODULE - Disclosed herein are a solid oxide fuel cell and a solid oxide fuel cell module. The solid oxide fuel cell includes: a unit cell including an anode, an electrolyte formed to surround the outer circumference of the anode and having a first opening part exposing the anode in a longitudinal direction, a cathode formed to surround the outer circumference of the electrolyte and having a second opening part corresponding to the first opening part, and a connector formed to cover the first opening part; a first current collecting member formed to be contacted with the anode; an insulating member formed to cover the first current collecting member; a second current collecting member formed to be contacted with the cathode; and a fixing unit integrating and fixing the first current collecting member, the insulating member, and the second current collecting member with the unit cell. | 03-28-2013 |
20130143140 | SOLID OXIDE FUEL CELL AND METHOD OF MANUFACTURING THE SAME - Disclosed herein is a solid oxide fuel cell. The solid oxide fuel cell includes cylindrical fuel cells and a current collector. The fuel cells are inserted into the current collector so that the fuel cells are connected in parallel to each other. The current collector includes an upper plate and a lower plate. The upper plate includes protruding parts each having a slot. An upper connection part connects the protruding parts in parallel to each other. The lower plate has a mesh structure and has semicircular support parts corresponding to the respective protruding parts. A lower connection part connects the semicircular support parts in parallel to each other. The solid oxide fuel cell unitizes connection between the fuel cells and current collection, thus simplifying a current collecting process, and minimizing a connection loss that may be induced in connection between the fuel cells. | 06-06-2013 |
20130171535 | SYSTEM FOR MEASURING PERFORMANCE OF SOLID OXIDE FUEL CELL - Disclosed herein is a system for measuring performance of a solid oxide fuel cell, including: a heating furnace wrapping the solid oxide fuel cell, the heating furnace having a first opening part through which one lateral surface in a length direction of the solid oxide fuel cell outwardly protrudes and a fuel supply hole formed in one surface thereof; a first fuel storage unit; a second fuel storage unit; a first fuel supply control unit; a second fuel supply control unit; an electronic load measuring current or voltage outputted from the solid oxide fuel cell; and a control unit controlling the supply of fuel by using the first fuel supply control unit and the second fuel supply control unit, and controlling the measurement of current or voltage by using the electronic load. | 07-04-2013 |
20130171539 | TUBULAR SOLID OXIDE FUEL CELL MODULE AND METHOD OF MANUFACTURING THE SAME - Disclosed herein is a tubular solid oxide fuel cell module including an anode layer, an electrolyte layer, a cathode layer divided into two parts or more, a conductive mesh structure and a conductive wire, and a method of manufacturing the same. The tubular solid oxide fuel cell is advantageous in that the cathode is divided into two parts or more, so that the moving distance of electric charges is decreased, with the result that resistance loss can be minimized, thereby increasing the efficiency of collecting electric charges. | 07-04-2013 |
20130171540 | BIMETAL CURRENT COLLECTING MEMBER AND FUEL CELL APPARATUS WITH THE SAME - Disclosed herein is a fuel cell apparatus including: a first electrode support having a tubular shape; an interconnector connected to one side of the first electrode support; an electrolyte membrane surrounding the interconnector and covering an outer surface of the first electrode support; a second electrode formed at the outer surface of the electrolyte membrane while being spaced apart from the interconnector; a first current collecting member surrounding an outer surface of the second electrode; and a second current collecting member engaged with an outer surface of the first current collecting member and having a bimetal structure. | 07-04-2013 |
20140055419 | CAMERA MODULE FOR OPTICAL TOUCHSCREEN - A camera module for an optical touchscreen includes a body part and a light emitting device coupling part. The body part may be disposed on one side corner of a touch region, provided with a light receiving hole at a portion thereof facing a center of the touch region, and provided with a lens mounted to correspond to the light receiving hole and an image sensor disposed to receive light collected through the lens. The light emitting device coupling part may be formed on at least one side of the body part that faces each edge of the touch region, and configured to be coupled to a light emitting device. | 02-27-2014 |