Abstract: A portable terminal includes a body comprising a first display configured to display first data, and first and second covers coupled to a front side of the body, wherein each of the first and second covers is structured to be physically displaceable relative to the body and each being positionable between open and closed positions, wherein the open position of each of the first and second covers permits a relative increase in viewable portion of the front side of the body, and the closed position of each of the first and second covers permits a relative decrease in viewable portion of the front side of the body. The terminal also includes a touch input unit operatively coupled to one of the first display, the first cover, or the second cover, wherein the touch input unit is configured to receive input via user contact.

Abstract: A fuel cell including an electrolyte membrane and/or an electrode which includes a crosslinked polybenzoxazine-based compound formed of a polymerized product of at least one selected from a first benzoxazine-based monomer and second benzoxazine-based monomer, the first benzoxazine-based monomer and second benzoxazine-based monomer having a halogen atom or a halogen atom-containing functional group, crosslinked with a cross-linkable compound.

Abstract: A mobile communication terminal having a card ejecting mechanism. The card ejecting mechanism includes a body having a card insertion hole through which a card is insertable in a push manner; a cover openably mounted at the body for covering the card; and an operation unit disposed at the cover for releasing a locked state of the cover and releasing a locked state of the card when pushed. A locked state of the card is released and the cover is opened by one push operation, thereby enhancing a user's convenience. Furthermore, since a small member such as a push rod is used to release a locked state of the card, the conventional user's finger inserting space for pressing the card is not required thus to enable a miniaturization of the mobile communication terminal.

Abstract: The present invention relates to a method of manufacturing a multi-layered printed circuit board which can decrease the cost and time required to produce the printed circuit board and can improve heat radiation characteristics and bending strength.

Abstract: An electrode for a fuel cell, the electrode including a catalyst layer, a method of making the same, and a fuel cell including the electrode. The catalyst layer includes a catalyst and at least one selected from the group consisting a first benzoxazine monomer, represented by Formula 1 below, a second benzoxazine monomer represented by Formula 2 below, a combination thereof, a homopolymer consisting of the first benzoxazine monomer, a homopolymer consisting of the second benzoxazine monomer, and a copolymer consisting of the first and second benzoxazine monomers. The electrode the first and/or second benzoxazine monomers contain fluorine or a fluorine-containing functional group.

Abstract: Provided are photomask registration errors of which have been corrected and a method of correcting the registration errors of a photomask. The photomask includes a photomask substrate, an optical pattern formed on one surface of the photomask substrate, and a plurality of stress generation portions formed in the photomask substrate. A method of correcting the registration errors of a photomask includes the steps of forming an optical pattern on a photomask substrate, measuring the registration errors of the optical pattern, and forming a plurality of stress generation portions in the photomask substrate so that the stress generation portions correspond to the measured registration errors.

Abstract: An electrode for fuel cells including a catalyst layer containing a benzoxazine monomer, a catalyst and a binder, and a fuel cell employing the electrode. The electrode for the fuel cells contains an even distribution of benzoxazine monomer, which is a hydrophilic (or phosphoric acidophilic) material and dissolves in phosphoric acid but does not poison catalysts, thereby improving the wetting capability of phosphoric acid (H3PO4) within the electrodes and thus allowing phosphoric acid to permeate first into micropores in electrodes. As a result, flooding is efficiently prevented. That is, liquid phosphoric acid existing in large amount within the electrodes inhibits gas diffusion which; this flooding occurs when phosphoric acid permeates into macropores in the electrodes. This prevention of flooding increases the three-phase interfacial area of gas (fuel gas or oxidized gas)-liquid (phosphoric acid)-solid (catalyst).

Abstract: Crosslinked polybenzoxazines obtained by crosslinking a monofunctional first benzoxazine monomer and a multifunctional second benzoxazine monomer with a crosslinkable compound, an electrolyte membrane including the same, a method of preparing the electrolyte membrane, a fuel cell including the electrolyte membrane having the crosslinked polybenzoxazines using the method. The crosslinked polybenzoxazines have strong acid trapping capability, improved mechanical properties, and excellent chemical stability as it does not melt in polyphosphoric acid. Even as the amount of impregnated proton carrier and the temperature are increased, mechanical and chemical stability is highly maintained, and thus the electrolyte membrane can be effectively used for fuel cells at a high temperature.

Abstract: 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.

Abstract: A crosslinked object of a polybenzoxazine-based compound formed of a polymerized resultant of a first monofunctional benzoxazine-based monomer or a second multifunctional benzoxazine-based monomer with a crosslinkable compound, an electrolyte membrane including the crosslinked object, a method of preparing the electrolyte membrane, and a fuel cell employing the electrolyte membrane including the crosslinked object. The crosslinked object has a strong acid trapping capability with respect to the benzoxazine-based compound and high mechanical properties due to the crosslinking. The crosslinked object is very stable chemically because of elimination of solubility in polyphosphoric acid. The electrolyte membrane including the crosslinked object has excellent phosphoric acid supplementing capacity at a high temperature and mechanical and chemical stability.

Abstract: An electronic device includes a main body, and a battery locking apparatus. The battery locking apparatus includes a locking unit, provided between a battery cover and the main body, which locks the battery cover to the main body; and an unlocking unit, provided between the locking unit and a battery, which provides a pushing force against the battery to unlock it from the main body.

Abstract: A card ejecting mechanism and a mobile communication terminal having the same. The card ejecting mechanism, comprises: a body having a card insertion hole through which a card is insertable in a push manner; a cover openably mounted at the body for covering the card; and an operation unit disposed at the cover for releasing a locked state of the cover and releasing a locked state of the card when pushed. A locked state of the card is released and the cover is opened by one push operation, thereby enhancing a user's convenience. Furthermore, since a small member such as a push rod is used to release a locked state of the card, the conventional user's finger inserting space for pressing the card is not required thus to enable a miniaturization of the mobile communication terminal.

Abstract: A mobile terminal having a liquid crystal display apparatus, which includes a liquid crystal panel having a polygonal flat shape and an adhesion member installed on at least one part among edges except corner parts at the flat portion of the liquid crystal panel. The mobile terminal includes a transmission and reception unit positioned at one side of a case, an input adjusting unit exposed to external portion of the case, a control unit, and a liquid crystal display driving unit operated by an output signal of the control unit, Accordingly, the mobile terminal with the liquid crystal display apparatus features improved durability and reliability since the liquid crystal panel has minimized spot generation that may occur from physical impacts, temperature changes or applied wrenching loads.

Abstract: A liquid crystal display apparatus and a mobile terminal displays letter or image information.