baber/WOPTO huggingface dataset:
Patent KR-20030092155-A (KR)
Title: reticle in a semiconductor fabricating, apparatus for lithographing and method of lithographing Thereof
Inventor: BAEK IN GI
IPC: H01L21/027
Filed: 2002-05-27
Abstract: PURPOSE: A reticle, an exposure equipment and an exposure method thereof for manufacturing a semiconductor device are provided to be capable of improving the resolution of a photoresist pattern and obtaining fine line width at the photoresist pattern. CONSTITUTION: A reticle(35) is provided with a plate(30) for transmitting the light supplied from a light source, the first reticle pattern(40) formed on the upper surface of the plate for forming the first predetermined pattern at the upper portion of a substrate, and the second reticle pattern(50) formed on the lower surface of the plate for forming the second predetermined pattern at the upper portion of the substrate. Preferably, the first and second reticle pattern are formed in order not to be overlapped with each other.
Patent KR-20020090924-A (KR)
Inventor: CHAN REGINIA
IPC: G06F1/32
Filed: 2002-05-29
Abstract: PURPOSE: A low power audio CD player for portable computers is provided to perform low power operation while playing an audio CD. CONSTITUTION: The computer system adapted to play an audio CD, the computer system comprising a computer subsystem comprising a system CPU, a digital-audio generating circuit, a digital computer bus coupling the CPU and the digital-audio generator circuit, and a digital computer bus controller, and a CD audio subsystem comprising an audio device capable of playing an audio CD and coupled to the digital computer bus controller, an audio amplifier circuit coupled to the audio device, and an audio interface coupled to the digital computer bus in parallel to the digital computer bus controller, the audio interface being adapted to generate signals to operate the audio device and play the audio CD when power is not being supplied to the computer subsystem.
Patent KR-20030092584-A (KR)
Title: The Vpp-generating circuit and the Vpp-generating method in the semiconductor memory devices
Inventor: KWON HWI JIN
IPC: G11C5/14
Filed: 2002-05-30
Abstract: PURPOSE: A boosted voltage generation circuit capable of adjusting the level of a boosted voltage in response to a specific mode of a semiconductor memory device and a method for generating the boosted voltage are provided to generate a desired boosted voltage based on a mode signal by creating the boosted voltage having various voltage level in response to the specific mode inputted thereto. CONSTITUTION: A boosted voltage generation circuit capable of adjusting the level of a boosted voltage in response to a specific mode of a semiconductor memory device includes a pump circuit for generating a predetermined boosted voltage, a detector(23) and an oscillator. The detector includes a boosted voltage dividing circuit(320), a reference voltage dividing circuit(310), a differential amplifier(330) and a resistance ratio adjusting member. The detector compares the boosted voltage with a predetermined reference voltage and detects the compared result. And, the oscillator outputs a control signal to control the operation of the pump circuit to the pump circuit in response to the compared result.
Patent KR-20030094448-A (KR)
Title: Method and apparatus for controlling rotation position
Inventor: CHO YEONG WAN
IPC: G05B19/25
Filed: 2002-06-04
Abstract: PURPOSE: A method and an apparatus for controlling a position of rotation are provided to stop a controlled object at a desired position in a rotating process by reducing the variation of the stopping distance of the controlled object. CONSTITUTION: A method for controlling a position of rotation includes a variable measuring process(10), a variable comparison process(12), a period decision process(14), and a control value decision process(16). The variable measuring process(10) is to measure a first and a second practical control variables. The variable comparison process(12) is to compare the first practical variable to a predetermined control variable. The period decision process(14) is to decide a predetermined period if the first practical variable is less than the predetermined control variable. The control value decision process(16) is to decide a control value for controlling the controlled object if the predetermined period passes or the first practical variable is more than the predetermined control variable.
Patent KR-20030094674-A (KR)
Title: Method Preparation of Foam Glass Block for Keeping Warm Insulation Materials of Construction Using Waste Fiber Glass
Inventor: BACK BO GI
IPC: C03B19/08
Filed: 2002-06-07
Abstract: PURPOSE: Provided is a method for producing a foam glass block having improved compact strength and flame resistance suitable to be used as a constructional heat insulating material, starting from waste fiber glass. CONSTITUTION: The method for producing a foam glass block(8) is characterized by comprising: the step(5) of adding 10-20 wt% of silicon dioxide(SiO2), 7.5-15 wt% of sodium carbonate(Na2CO3), 2.5-5 wt% of ferric oxide(Fe2O3), 0.1 wt% of water and 0.3-2 wt% of a carbon(Hi-Block 40B1) to 60-80 wt% of a waste fiber glass fiber powder(2), based on the total weight of the mixed composition; the step of filling the mixed composition in a mold having excellent heat resistance; and the step(6) of heating and baking for a predetermined time, and cooling gradually.
Patent KR-20020060138-A (KR)
Inventor: CHO JUN GU
IPC: F26B3/347
Filed: 2002-06-21
Abstract: PURPOSE: A microwave drier is provided to dry an object to be dried by heating an internal part of the object using a microwave with preventing the microwave from being discharged to the exterior and by supplying and exhausting ambient air into/from a drying chamber. CONSTITUTION: Objects to be dried are uniformly distributed on a stacking tray having a disc shape. At this time, objects having a relatively thin thickness are arranged at an inner peripheral portion of the stacking tray and objects having a relatively heavy thickness are arranged at an outer peripheral portion of the stacking tray. Then, the stacking tray is placed on a tray plate(6) by opening a door(9) of a drying chamber(1). After closing the door(9), a power is applied to rotate the tray plate(6). At this time, a motor connected to a tray driving shaft is driven. The tray driving shaft is connected to the tray plate(6). As the motor is driven, the tray driving shaft is rotated together with the tray plate(6). Accordingly, the stacking tray fixed to the tray plate(6) is rotated. In order to smoothly rotate the tray plate(6), a circular rolling member(8) is installed at both sides of the drying chamber(1) and front and rear portions of an air duct.
Patent KR-20040003391-A (KR)
Title: A water level setting construction of laundry.
Inventor: KANG HEE BOK
IPC: D06F39/12
Filed: 2002-07-02
Abstract: PURPOSE: A leveling device of a washing machine is provided to reduce installation hours by adjusting four support plates promptly with operating a ball valve two times, and to extend the life span of the washing machine and reduce noise during rotation by adjusting the level of the washing machine precisely and stably according to the tilt angle of the floor. CONSTITUTION: A leveling device of a washing machine is composed of a supply pipe(21) for flowing fluid; a hydraulic cylinder(22) diagonally connected to each supply pipe; a piston(23) integrally connected to the cylinder and reciprocated according to pressure from flow of fluid; a support plate(24) fixed in the lower part of the piston to support the bottom; and a ball valve(25) formed in the middle of the supply pipe inserted to the cylinder to regulate flow of fluid. The washing machine is leveled by pressure from action and reaction in flowing fluid according to the tilt angle of the bottom, and the washing machine is kept horizontal with insulating flow of fluid after leveling.
Patent KR-20040003531-A (KR)
Title: Operating condition monitoring method and system of radio frequency relay
Inventor: KIM HYEON GYEONG
IPC: H04B17/40
Filed: 2002-07-03
Abstract: PURPOSE: A system for remotely monitoring an operated state of an RF repeater is provided to install monitoring devices for monitoring RF repeaters in every region where the RF repeaters are disposed, and to check operated states of the monitoring devices, thereby deciding whether the RF repeaters are normal. CONSTITUTION: An MSC(Mobile Switching Center)(16) supplies a call service to a mobile communication terminal(12). Many RF repeaters(14) are installed in the one MSC(16), amplify signals transmitted from the MSC(16), and supply the amplified signals to the mobile communication terminal(12). A monitoring device(10) is installed in every region where the RF repeaters(14) are installed, and monitors operated states of the RF repeaters(14). The monitoring device(10) comprises as follows. A terminal transmits/receives a signal for monitoring the operated states of the RF repeaters(14) and the MSC(16). An operated state monitoring unit monitors the operated states of the RF repeaters(14) as controlling the terminal, and supplies a transmission signal to the terminal.
Patent KR-20040004005-A (KR)
Title: Method for fabricating capacitor in semiconductor device
Inventor: AHN SANG TAE
IPC: H01L27/108
Filed: 2002-07-05
Abstract: PURPOSE: A method for manufacturing a cylindrical capacitor of a semiconductor device is provided to be capable of improving stability of the cylindrical capacitor. CONSTITUTION: A sacrificial layer for capacitors is formed on a semiconductor substrate(20). A capacitor hole is formed by selectively etching the sacrificial layer. A lower electrode(26) is formed by filling a metal film in the capacitor hole. A bar(27) for supporting the lower electrode is formed on the lower electrode. The bar(27) is consisted of an insulating layer with a desired hardness. After the sacrificial layer is removed, a dielectric film(28) is formed on the lower electrode and the bar(27). Then, an upper electrode is formed on the dielectric film.
Patent KR-20040005016-A (KR)
Title: Water ski having small gas engine without mechanical driving parts
Inventor: PARK SUN SOON
IPC: B63B35/81
Filed: 2002-07-08
Abstract: PURPOSE: A compressed air is used in a gas propulsion device to give a propulsion force to a water ski or board simplifying structure with a low manufacturing cost. CONSTITUTION: A water ski or board has a gas propulsion device. An air is injected to a combustion chamber by a compressed air tank(2), and a gas is injected to the combustion chamber by a gas barrel(6). The mixed gas is burned in the combustion chamber, and is injected. A lever, a rope and an electric/electronic device is further provided.
Patent KR-20040005104-A (KR)
Title: Antenna capable of varying beam tilt
Inventor: LEE DON SIN
IPC: H01Q3/30
Filed: 2002-07-08
Abstract: PURPOSE: A beam tilt variable antenna is provided to reduce faults caused due to the phase varying unit, while achieving improved cross modulation characteristics by minimizing contacts. CONSTITUTION: A beam tilt variable antenna(10) comprises a phase displacement unit(100) for phase displacement of the high frequency signal input from an external source; a phase varying unit(200) for varying the phase of the high frequency signal; a moving unit(300) for moving the phase varying unit; and an antenna(400) for radiating the high frequency signal whose phase is displaced by the phase displacement unit.
Patent KR-20040008479-A (KR)
Title: Method for manufacturing a semiconductor device
Inventor: HA MIN HO
IPC: H01L21/28
Filed: 2002-07-18
Abstract: PURPOSE: A method for manufacturing a semiconductor device is provided to improve contact resistance and to reduce CD(Critical Dimension) of a gate electrode by previously forming a landing plug before forming the gate electrode. CONSTITUTION: Line patterns(33a) are formed on a substrate(31) by selectively etching the first conductive layer. The first nitride spacer(37) is formed at both sidewalls of the line patterns. A gate oxide layer(39) is then grown on the exposed substrate. The second conductive layer(41) is formed on the gate oxide layer and recessed. After a metal film(43) is formed on the resultant structure, a metal gate electrode including the tungsten film and the second conductive layer is formed. The second nitride layer as a passivation layer is formed on the metal gate electrode.
Patent KR-20040013922-A (KR)
Title: Data output buffer and method of semiconductor memory device thereof
Inventor: JANG SEONG JIN
IPC: H03K19/0185
Filed: 2002-08-09
Abstract: PURPOSE: A data output buffer of a semiconductor memory device and a data output method are provided to reduce cost by using both a push pull type and an open drain type. CONSTITUTION: According to the data output buffer using both a push pull type output driver and an open drain type output driver, the first and the second driver(34,36) are connected in serial between the first power supply and the second power supply and output data by receiving the first and the second data output signal. A transmission gate(42) is connected to the second driver and outputs the second data output signal by receiving the first power supply and a control signal. The control signal is a mode register set signal or a fusing signal.
Patent KR-20040021481-A (KR)
Title: Semiconductor integrated circuit device
Inventor: KANG GYEONG U
IPC: G11C5/06
Filed: 2002-09-04
Abstract: PURPOSE: A semiconductor IC is provided to enhance a degree of integration and reduce a signal delay phenomenon between the first line and the second and the third signal lines by reducing a layout area. CONSTITUTION: A semiconductor IC includes the first signal line(110), the second and the third signal lines(120,130), a plurality of shield lines(112-1, 112-2), and a common driver(101). The second and the third signal lines(120,130) are arranged in a left and a right side of the first signal line(110). The shield lines(112-1, 112-2) are arranged between the first and the second signal lines(110,120) and between the first and the third signal lines(110,130). The common driver(101) is connected to the first signal line(110) and the shield lines(112-1,112-2).
Patent KR-20040026202-A (KR)
Title: method of evaporatoring for vacuum evaporator
Inventor: CHO IK HYEON
IPC: C02F1/04
Filed: 2002-09-23
Abstract: PURPOSE: Provided is a vacuum evaporation method using a vacuum evaporative, thereby stably treating highly concentrated wastewater at low cost. CONSTITUTION: The method comprises the steps of evaporating wastewater to separate the wastewater into moisture and slurry; collecting the slurry at a lower part of an evaporator(1) and vapor at an upper part of the evaporator(1); transferring the slurry to a slurry tank(5); drying the slurry and discharging solids generated by drying the slurry via a drain valve(7'); condensing the vapor generated from the evaporator(1) and the dryer(4) by a condenser(2), thereby obtaining the condensate; sucking remained air and no condensed gas to a vacuum tank(20,20') via a pipe by a pressure generated by a water ejector(8,8'), thereby evacuating inside of the evaporator(1) and the dryer(4); and transferring the no condensed gas and circulation water in the water ejector(8,8') to a complex treatment device.
Patent KR-20030027813-A (KR)
Title: A bis-Schiff base ligand-containing mono-metallocene olefin polymerization catalyst, its preparation process and application
Inventor: CHEN WEI
IPC: C07F17/00
Filed: 2002-09-27
Abstract: PURPOSE: A mono-metallocene olefin polymerization catalyst containing a bis-Schiff base ligand, its preparation method and a polymerization or copolymerization method of α-olefins using the catalyst are provided, to produce a polymerization products having a high molecular weight and a high insertion rate of comonomers by using the catalyst. CONSTITUTION: The mono-metallocene olefin polymerization catalyst is represented by the formula 1, wherein R1 is H, an alkyl group of C1-C12, an alkoxy group of C1-C12 or an aryl group of C6-C12; R2 and R2' are H or an alkyl group of C1-C4, respectively; R3 is H, an alkyl group of C1-C12, an alkoxy group of C1-C12 or an aryl group of C6-C12; and M is Ti, Zr or Hf. The preparation method comprises the steps of reacting the Schiff base ligand compound of the formula 2 with an alkyl alkali metal compound in an organic medium to obtain an alkali metal salt of a Schiff base ligand; and reacting the obtained metal salt with the cyclopentadienyl metal chloride of CpMCl3 (wherein Cp is a mono-substituted cyclopentadienyl group) in an organic medium.
Patent KR-20040028386-A (KR)
Title: apparatus for inspecting an optical block
Inventor: CHOI BONG
IPC: G01N21/88
Filed: 2002-09-30
Abstract: PURPOSE: An apparatus for inspecting an optical system is provided to precisely inspect a contamination degree of the optical system of a photo device by using an optical system inspection apparatus. CONSTITUTION: An optical system inspection apparatus includes a light radiating section(12) for radiating light onto an optical system(10) and a detecting section(14) for detecting light passing through the optical system(10). The light radiating section(12) has a light source(120) providing light and a socket(122) for receiving the light source(120) therein. One side of the socket(122) has a size sufficient for receiving the optical system(10). The detecting section(14) has a light collecting section for collecting light passing through the optical system(10), an amplifying section and a current transforming section.
Patent KR-20040032206-A (KR)
Title: Paper feed roller
Inventor: LEE TAE HUI
IPC: G03G15/00
Filed: 2002-10-01
Abstract: PURPOSE: A paper feeding roller is provided to prevent a rubber roller and a shaft from running idle by increasing a contact area of the rubber roller and the shaft, and by forming a plurality of indented parts, thereby preventing skew or misfeeding of paper. CONSTITUTION: A paper feeding roller(100) includes a shaft(110) which becomes the axis of rotation, and a rubber roller(120) molded to an outer periphery of the shaft. A plurality of indented parts(111) are formed in a length direction at a part which the rubber roller is molded to, wherein the plurality of indented parts are formed by cutting the shaft. The plurality of indented parts are rotatively symmetrical to the rotary center of the paper feeding roller.
Patent KR-20040031454-A (KR)
Title: Method of refining the molten steel in an efficient manner
Inventor: CHOI JAE JUN
IPC: C21C7/10
Filed: 2002-10-07
Abstract: PURPOSE: A high efficient molten steel refining process is provided which enables slag in molten steel to be effectively deoxidized by injecting prepared materials into molten steel after sucking molten steel in ladle into vacuum tank using the process of restoring degree of vacuum in vacuum tank to the atmospheric pressure. CONSTITUTION: In a molten steel refining process using a vacuum degassing facility comprising the steps of dipping an ascension pipe into a ladle(1) in which molten steel is contained; circulation refining molten steel using reflux gas blown in from a lower part of the vacuum tank(6) after reducing pressure of the vacuum tank; and restoring vacuum degree of the vacuum tank to the atmospheric gas by continuously opening nitrogen pressure restoring valve and air suction valve after cutting off steam main valve as opening steam drain valve of vacuum exhaust unit, the process is characterized in that slag(3) is deoxidized in the vacuum tank by injecting prepared materials(29) into the vacuum tank when slag in the ladle is vacuum sucked into the vacuum tank by opening the air suction valve and lowering the ladle at the same time after closing the nitrogen pressure restoring valve when a vacuum degree of the vacuum tank is 650 torrs.
Patent KR-20040031965-A (KR)
Title: Video coding apparatus of minimizing network overhead and method thereof
Inventor: CHAE SANG HO
IPC: H04N7/24
Filed: 2002-10-08
Abstract: PURPOSE: An apparatus and a method for compressing video minimizing a network load are provided to minimize fragmentation in an actual network transmission and increase the network efficiency. CONSTITUTION: A network information obtaining unit(101) obtains network information, MTU(Maximum Transmission Unit) information. A video packet length set unit(103) sets a length of a video packet by considering the obtained MTU information. A video compressing unit(105) compresses video in the set length of the video packet. A packetizing unit(107) packetizes the compressed data. A network transmission unit(109) transmits the packetized video data through a network.
Patent KR-20040033798-A (KR)
Title: Apparatus and method of injection molding lead screw for stepping motor
Inventor: LEE JE YEON
IPC: H02K37/24
Filed: 2002-10-16
Abstract: PURPOSE: A method and an apparatus are provided to achieve improved operating ability of lead screw by enhancing the accuracy of pitch surface of lead screw. CONSTITUTION: A method comprises a material injection step and a product forming and extracting step. The product forming and extracting step includes a process of forming a product in a cavity and preventing a formation of parting line on the pitch surface of the lead screw by extracting the product through the rotation of the cavity. An apparatus comprises an injection unit for injecting a material, and a cavity for forming a product. The cavity includes a gate block(10) for supplying a material; a cavity block(11) for forming a product; and a plurality of guide blocks(13) arranged to slide in an axial direction, and which accommodate a shaft member(12) for rotation of the cavity block.
Patent KR-20040033882-A (KR)
Title: exhaust manifold of an engine
Inventor: YANG IL SEOK
IPC: F01N13/10
Filed: 2002-10-16
Abstract: PURPOSE: An exhaust manifold of an engine is provided to sufficiently secure performance of the engine at low speed and middle speed by preventing exhaust interference between exhaust tubes, and to reduce cost by providing structure satisfying proximity to the engine required by a WCC(Warm-up Catalytic Converter). CONSTITUTION: An exhaust manifold comprises exhaust tubes(1) bent upward from an exhaust port of an engine; and a collector(3) connected with the exhaust tubes, and having spaces separated by a central partition so that the exhaust tubes connected with combustion chambers in which combustion is successively executed therein are merged to each other, respectively. Exhaust gas discharged from the combustion chambers of an engine is discharged into the space of the collector separated by the partition to prevent exhaust interference so as to prevent back-flow and improve output of the engine at low speed and middle speed. Lengths of the exhaust tubes are equal to each other to evenly distribute time needed for exhaust pressure to reach to the collector so as to form equal back pressure in all of the exhaust tubes.