Abstract: The present invention relates to a stent which is inserted into a stenosed bile duct to enlarge the bile duct. The stent includes a plurality of hooks which extend outwards from the main body of the stent at a predetermined angle and are spaced apart from each other. Therefore, when the stent is inserted into the bile duct, the hooks that extend outwards from the main body at a predetermined angle are hooked to the inner surface of the bile duct, thus preventing the stent from slipping relative to the bile duct.

Abstract: An audio signal output apparatus including an audio signal input unit which receives an audio signal; a digital signal processor (DSP) which estimates an output power corresponding to the received audio signal, and adjusts at least one of a gain value to be applied to the received audio signal and the output power of the received audio signal according to a period for which the estimated output power exceeds a rated maximum output power and a difference between the estimated output power and the rated maximum output power; and an audio signal output unit which generates, amplifies, and outputs a pulse width modulation (PWM) signal corresponding to the received audio signal.

Abstract: Disclosed is a pharmaceutical composition containing rivastigmine. Specifically, disclosed is a transepidermal drug delivery system including a rivastigmine-containing drug layer and a supporter adhered to one surface of the drug layer to support the drug layer, wherein the drug layer contains 10 to 40 parts by weight of a rubber, 20 to 80 parts by weight of a rosin ester resin and 0.1 to 10 parts by weight of an acrylic adhesive and the drug layer has a thickness of 40 ?m to 100 ?m.

Abstract: A catalyst-enhanced chemical vapor deposition (CECVD) apparatus and a deposition method, in which tension is applied to a catalyst wire in order to prevent the catalyst wire from sagging due to thermal deformation, and additional gas is used to prevent foreign material from being generated. The CECVD apparatus may be constructed with a process chamber, a showerhead to introduce process gas into process chamber, a tensile catalyst wire structure provided in the process chamber to decompose the gas introduced from the showerhead, and a substrate on which the gas decomposed by the catalyst wire structure is deposited, so that the tension is applied to a catalyst wire in order to prevent the catalyst wire from sagging due to thermal deformation, and additional gas is used to prevent foreign material from being generated, thereby eliminating occurrences of non-uniform temperatures of a substrate and non-uniform film growth, and concomitantly enhancing the durability of the catalyst wire.

Abstract: An expanding vascular stent is disclosed that is inserted into a blood vessel in the human body and expands the blood vessel. The stent is configured in such a way that adjacent rows, each of which is comprised of a plurality of identical cells, are symmetrically arranged, in an out of phase manner. When the stent is expanded in the radial direction, the adjacent rows are expanded in opposite directions, maintaining their linearly symmetrical state. Therefore, the reduction in the length of the stent can be minimized. Since the stent has also a great degree of flexibility, when it is inserted into the blood vessel, it can minimize the damage to the blood vessel wall.

Abstract: The present invention provides a catalytic enhanced chemical vapor deposition (CVD) apparatus capable of maximizing efficiency of gas use to 80% or more, and obtaining a uniform thin film by efficiently arranging filaments mounted on a shower head of the catalytic enhanced CVD apparatus, thereby uniformly decomposing a deposition source gas. The present invention also provides a method for fabricating an organic electroluminescent device with an inorganic film formed through the catalytic enhanced CVD apparatus.

Abstract: Disclosed is a pharmaceutical composition containing tulobuterol. More specifically, disclosed is a transepidermal drug delivery system including a drug layer containing tulobuterol and a natural rubber-based adhesive material, and a supporter adhered to one surface of the drug layer to support the drug layer, wherein the natural rubber-based adhesive material comprises 10 to 40 parts by weight of a natural rubber, 54.5 to 85 parts by weight of a rosin ester resin and an acid value controller, and the drug layer has a thickness of 25 ?m to 75 ?m.

Abstract: A catalyst enhanced chemical vapor deposition (CECVD) apparatus is provided in which the showerhead and catalyst support are separated from each other. The CECVD apparatus has excellent spacing between the showerhead, catalyst wire and substrate and can be purged to prevent contaminants from forming on parts functioning at low temperatures. The CECVD apparatus comprises a reaction chamber, a showerhead for introducing reaction gas into the reaction chamber, a catalyst wire for decomposing the reaction gas, a catalyst support for supporting the catalyst wire, a substrate on which the decomposed gas is deposited, and a substrate support for supporting the substrate.

Abstract: A method of controlling power supply voltage of an audio amplifier delays an input audio signal; estimates, with a digital signal processor, an audio output level of the delayed input audio signal based on correlations between the delayed input audio signal level and audio level change factors; sets a value of power supply voltage supplied to a power switching circuit unit in correspondence with the estimated audio output level prior to outputting the delayed input audio signal on which the estimated audio output level is based; and amplifies the delayed audio input signal to provide an audio output signal by variably controlling the power supply voltage supplied to the power switching circuit unit according to the set value of power supply voltage.

Abstract: A method for in-situ polycrystalline thin film growth is provided. A catalyst enhanced chemical vapor deposition (CECVD) apparatus is used to grow the polycrystalline silicon thin film. No subsequent annealing or dehydrogenating process is needed. The method comprises exhausting a chamber to form a vacuum chamber, and then purging vacuum chamber and introducing a catalyst. A substrate is then placed in the vacuum chamber and reaction gas is injected into the chamber. The reaction gas reacts with the catalyst in the chamber to grow a polycrystalline thin film on the substrate. The inventive method reduces processing time and production cost and can be used to fabricate larger devices due to the elimination of bulky annealing equipment.

Abstract: The present invention provides a catalytic enhanced chemical vapor deposition (CVD) apparatus capable of maximizing efficiency of gas use to 80% or more, and obtaining a uniform thin film by efficiently arranging filaments mounted on a shower head of the catalytic enhanced CVD apparatus, thereby uniformly decomposing a deposition source gas. The present invention also provides a method for fabricating an organic electroluminescent device with an inorganic film formed through the catalytic enhanced CVD apparatus.

Abstract: A catalyst-enhanced chemical vapor deposition (CECVD) apparatus and a deposition method, in which tension is applied to a catalyst wire in order to prevent the catalyst wire from sagging due to thermal deformation, and additional gas is used to prevent foreign material from being generated. The CECVD apparatus may be constructed with a process chamber, a showerhead to introduce process gas into process chamber, a tensile catalyst wire structure provided in the process chamber to decompose the gas introduced from the showerhead, and a substrate on which the gas decomposed by the catalyst wire structure is deposited, so that the tension is applied to a catalyst wire in order to prevent the catalyst wire from sagging due to thermal deformation, and additional gas is used to prevent foreign material from being generated, thereby eliminating occurrences of non-uniform temperatures of a substrate and non-uniform film growth, and concomitantly enhancing the durability of the catalyst wire.

Abstract: Methods of fabricating an organic light emitting device using plasma and/or thermal decomposition are provided. An insulating layer is formed by reacting first and second radicals. The first radical is formed by passing a first gas through a plasma generating region and a heating body, and the second radical is formed by passing a second gas through the heating body. The methods improve the characteristics of the resulting insulating layer and increase the use efficiency of the source gas by substantially decomposing the source gas. The insulating layer can be a passivation layer formed on an organic light emitting device. The methods use plasma apparatuses such as an inductively coupled plasma chemical vapor deposition (ICP-CVD) apparatuses or plasma enhanced chemical vapor deposition (PECVD) apparatuses.

Abstract: A method of forming a thin film and a method of fabricating an organic light emitting display device are provided. The method includes depositing a film formation material mixed with a deposition material and an additive material to form the thin film, and the additive material has a eutectic melting point with the deposition material. Accordingly, it is possible to form the thin film at a quite lower temperature compared to a conventional case of forming the thin film using only a deposition material.

Abstract: A method of manufacturing an organic light emitting device by using a facing target sputtering apparatus is provided. The method includes forming a first electrode on a substrate; forming an organic film on the first electrode; and forming a second electrode on the organic film by using a facing target sputtering apparatus. Accordingly, an electrode film is formed on the organic light emitting device at a low temperature without deterioration of the electrode film due to plasma, it is possible to improve light emitting efficiency and electro-optical characteristics of the organic light emitting device.

Abstract: An inductively coupled plasma chemical vapor deposition apparatus comprises a reaction gas spray nozzle capable of evenly spraying reaction gas onto a rectangular substrate, a radio frequency (RF) antenna capable of uniformly forming a plasma source in a rectangular shape, and a rectangular mask maintained at a low temperature so as to uniformly form a thin film on the rectangular substrate used for a flat panel display device.

Abstract: An organic light-emitting device that includes an encapsulation structure that has excellent resistance to water, heat, and chemicals and can be mass-produced, a method of manufacturing the device, and an apparatus for manufacturing the encapsulation structure. The organic light-emitting device includes a substrate, an organic light-emitting portion that has an organic light-emitting diode (OLED) and formed on a surface of the substrate, and an encapsulation structure made of a parylene polymer and formed to cover the organic light-emitting portion.