Abstract: A liquefied gas storage tank includes a corner block disposed on a corner portion, wherein the corner block includes a lower block, an upper block and an upper connecting block, the upper block includes a first inner fixing unit and a second inner fixing unit respectively provided inside a first surface and a second surface, bonded and connected to a secondary barrier, and each having a structure in which a primary inner plywood, a primary corner insulating material, and a primary outer plywood are stacked, and an inner bent portion installed at a corner spatial portion between the first inner fixing unit and the second inner fixing unit, and both side surfaces of the inner bent portion that are perpendicular to the secondary barrier each have a height reduced from a total height of each of the first and second inner fixing units.

Abstract: The liquefied gas storage tank includes a primary barrier, a primary insulation wall, a secondary barrier, and a secondary insulation wall. In a state where unit elements are arranged adjacent to each other, each of the unit elements being formed by stacking the secondary insulation wall, the secondary barrier, and a fixed insulation wall which is a part of the primary insulation wall, the primary insulation wall may comprise: a connection insulation wall provided in the space between the adjacent fixed insulation walls; first slits formed between the fixed insulation walls and the connection insulation wall when the connection insulation wall is inserted and installed between the adjacent fixed insulation walls; a plurality of second slits formed in a lengthwise direction and a widthwise direction of the fixed insulation walls; and a first insulating filler material for filling the first slits.

Abstract: A data input key for a portable apparatus and a key array thereof. The data input key includes a first key having a first recess positioned on the top thereof and a second key that has a second recess positioned on the top thereof, while facing the first recess, and which is disposed adjacent to the first key while facing it. In a first mode, the same data is recognized when either of the keys are pressed, and in a second mode different data is recognized when each of the first and second keys are pressed.

Abstract: A speaker of a portable terminal having a resonance space defined in the portable terminal such that the sound can advance in multiple directions through the resonance space, thereby enabling a user of the terminal to hear a large volume of high quality sound. The speaker includes an internal antenna module disposed at an upper inner portion of the body of the portable terminal and defining a resonance space, and a speaker module integrally assembled with the internal antenna module and disposed under the resonance space formed under the main PCB. Sound generated by the speaker module advances in multiple directions after passing through the resonance space regardless of whether the folder is opened or closed.

Abstract: A camera lens assembly for a portable terminal. The camera lens assembly comprises a cylindrical housing having a receiving space extended in the longitudinal direction thereof, a camera holder inserted into or drawn out from the housing at one end of the housing, a bracket fixed to the end of the camera holder and linearly reciprocated in the housing, a guide plate linearly reciprocated on the bracket in the direction perpendicular to the longitudinal direction of the bracket and having a guide groove formed in the shape of a prescribed figure, a supporting cap attached to the other end of the housing and having a guide protrusion formed at the inner circumferential surface thereof and slidably moved along the guide groove for stopping the linear movement of the bracket at least once, and a spring supported by the supporting cap at one end thereof for applying an elastic force to the camera holder in the direction of drawing out the camera holder from the housing.

Abstract: A speaker of a portable terminal having a resonance space defined in the portable terminal such that the sound can advance in multiple directions through the resonance space, thereby enabling a user of the terminal to hear a large volume of high quality sound. The speaker includes an internal antenna module disposed at an upper inner portion of the body of the portable terminal and defining a resonance space, and a speaker module integrally assembled with the internal antenna module and disposed under the resonance space formed under the main PCB. Sound generated by the speaker module advances in multiple directions after passing through the resonance space regardless of whether the folder is opened or closed.

Abstract: A data input key for a portable apparatus and a key array thereof. The data input key includes a first key having a first recess positioned on the top thereof and a second key that has a second recess positioned on the top thereof, while facing the first recess, and which is disposed adjacent to the first key while facing it. In a first mode, the same data is recognized when either of the keys are pressed, and in a second mode different data is recognized when each of the first and second keys are pressed.

Abstract: An antibacterial paint containing 30 ppm of nano silver particles on a surface of an injection preform, a method for manufacturing the same, and a coating method using the same are provided. A nano silver-ethanol dispersion solution is injected into a butanol solution, while agitating it at a high speed to uniformly disperse a nano silver solution into the paint, to prepare a master batch containing nano silver particles. The master batch is injected into an Ultra Violet (UV) clear paint and is continuously agitated at a high speed for a predetermined period of time to obtain an antibacterial UV clear paint, which is used to coat the surface of an injection preform.

Abstract: A camera lens assembly for a portable terminal. The camera lens assembly comprises a cylindrical housing having a receiving space extended in the longitudinal direction thereof, a camera holder inserted into or drawn out from the housing at one end of the housing, a bracket fixed to the end of the camera holder and linearly reciprocated in the housing, a guide plate linearly reciprocated on the bracket in the direction perpendicular to the longitudinal direction of the bracket and having a guide groove formed in the shape of a prescribed figure, a supporting cap attached to the other end of the housing and having a guide protrusion formed at the inner circumferential surface thereof and slidably moved along the guide groove for stopping the linear movement of the bracket at least once, and a spring supported by the supporting cap at one end thereof for applying an elastic force to the camera holder in the direction of drawing out the camera holder from the housing.

Abstract: A mobile radio communication terminal automatically disconnects a call after completion of a telephone conversation. A speaker signal detector generates a first detection signal upon detection of an audio signal received from another party, and a microphone signal detector generates a second detection signal upon detection of an audio signal input from a microphone. A controller disconnects an established speech path when the first and second detection signals are not input from respective speaker signal detector and the microphone signal detector, for a predetermined time.

Abstract: A hinge device of a flip type mobile telephone including a body and a flip cover with a speaker mounted thereon. In the hinge device, a hinge assembly includes a spring connector pin; a hinge shaft having at least one open end, a pair of opposite protrusions, a pair of opposite indents, and a cylindrical inner wall into which the connector pin is pressed, the shaft being movable along a rotation axis; a hinge housing having at least one open end into which the hinge shaft is inserted; guide means for enabling the hinge shaft to move rectilinearly in the hinge housing; and securing means for preventing separation of the hinge shaft from the hinge housing. The hinge device further includes a coupling member having a pair of opposite protrusions and a pair of opposite indents, for keeping in sliding surface contact with the hinge shaft; and conducting means interposed between the hinge assembly and the coupling member, for electrically connecting the speaker to a printed circuit board housed within the body.

Abstract: A device for electrically connecting a microphone mounted on a flip cover to an audio circuit of a telephone body. The flip cover is detachable from the telephone body when an excessive force is applied thereto. A hinge apparatus includes two hinge modules each including a hinge housing, a hinge shaft having a protrusion at an end and a shaft at another end, being assembled into the hinge housing; conductive means fixedly pressed into a through hole formed along an axis of the hinge shaft; a cam hinge having opposing protrusions and opposing indents formed alternately at one side, engaging with the hinge shaft, and a through hole formed along the axis of the hinge shaft; a hinge cover mounted so as to cover an end of the hinge housing, the hinge cover having a through hole formed along the axis of the hinge shaft, through which an electric wire passes; and a coil spring intervening between the cam hinge and the hinge cover to provide an elastic force.

Abstract: A radio phone having a microphone attachment for electrically connecting the microphone and an audio circuit. The radio phone having a flip with the microphone embedded therein, a telephone body and connecting device for connecting the flip and the telephone body to hingedly and electrically connect the microphone with the telephone body.