baber/WOPTO huggingface dataset:
Patent KR-20030092361-A (KR)
Title: Method for preparing high molecular weight polycarbonate
Inventor: HONG MI JEONG
IPC: C08G64/30
Filed: 2002-05-29
Abstract: PURPOSE: A method for preparing a high molecular weight polycarbonate resin is provided, to maximize the increase of molecular weight of polycarbonate after solid state polymerization and to reduce remarkably the reaction time. CONSTITUTION: The method comprises the steps of melting and reacting a dialkyl(aryl) carbonate and an aromatic hydroxy compound by ester exchange reaction to prepare a noncrystalline polycarbonate prepolymer with low molecular weight which has a weight average molecular weight of 1,500-15,00 g/mol; condensation polymerizing the noncrystalline polycarbonate prepolymer with low molecular weight to prepare a noncrystalline polycarbonate with middle molecular weight which has a weight average molecular weight of 20,000-30,000 g/mol; preparing a crystalline polycarbonate from the noncrystalline polycarbonate with middle molecular weight by solvent-induced crystallization; and solid state polymerizing the crystalline polycarbonate to prepare a high molecular weight polycarbonate with a weight average molecular weight of 35,000-200,000 g/mol.
Patent KR-20020048920-A (KR)
Inventor: RA HYUN SOO
IPC: A45C11/16
Filed: 2002-05-29
Abstract: PURPOSE: A jewel case with a recorded voice revival function is provided to enable a user to record a specific voice or message so as to listen the recorded specific voice or message whenever the user opens the jewel case. CONSTITUTION: The jewel case(1) contains a sound generating circuit(10) contained in an interior space(3) of a bottom frame. The sound generating circuit is connected with a recorded voice revival integrated circuit(8), a sensor(9), a mike(6), a recording jack socket(5), a recorded voice revival selecting switch(4), and a volume switch(15) respectively. In addition, an output terminal of the recorded voice revival integrated circuit is connected with a base of a transistor connected with a speaker in series so as to make a user listen to a recorded voice or message whenever the user opens the jewel case.
Patent KR-20030093650-A (KR)
Inventor: KIM JUN MAN
IPC: B08B3/14
Filed: 2002-06-04
Abstract: PURPOSE: A liquid suction device is provided to improve working efficiency by easily removing water from a mold after washing the mold. CONSTITUTION: A liquid suction device(100) is composed of a hollow body(110), an air discharge unit(120) inserted into the body away from the inner surface of the body and having a coupling unit(121) connected to a negative-pressure generating unit, a liquid suction unit(130) communicated with the body, and a sealing member(140) installed between the body and the air discharge unit.
Patent KR-20030096582-A (KR)
Title: Apparatus and method for blocking harmful internet site
Inventor: LEE BYEONG HUI
IPC: G06F17/00
Filed: 2002-06-14
Abstract: PURPOSE: A device and a method for intercepting a harmful Internet site are provided to intercept the harmful site from all Internet lines without a management device for a subscriber of a harmful site interception service. CONSTITUTION: A subscriber terminal(10) receives an Internet service. A DSLAM(Digital Subscriber Line Access Multiplexer)(20) sends a signal to a fast backbone line by using a multiplex technology as receiving an access signal from the subscriber terminal. An NAS(Network Access Server)(30) connects the subscriber to the Internet network by receiving the signal of the DSLAM and manages traffic. A certification server(40) certifies the access of the subscriber and selects the subscriber for the harmful site interception service. A switching part(50) connects the subscriber subscribing for the harmful site interception service to the Internet network and manages the traffic. An interception server(60) intercepts the access to the harmful site from the subscriber connecting to the switching part by keeping a list of the harmful site.
Patent KR-20040002226-A (KR)
Title: A method for forming of a semiconductor device
Inventor: HWANG CHANG SEON
IPC: H01L27/108
Filed: 2002-06-29
Abstract: PURPOSE: A method for fabricating a semiconductor device is provided to improve the characteristic and reliability through a landing plug poly formation process by forming a sub pattern in the layout of a landing plug poly mask and by completely opening an active region in an etch process using the landing plug poly mask. CONSTITUTION: The sub pattern(500) is formed in the active region of the light interception region(300) of a landing plug poly mask for a bitline so that the contact area of the active region and the bitline is increased in a contact process.
Patent KR-20020068985-A (KR)
Inventor: JUN SUN PYO
IPC: A01M7/00
Filed: 2002-07-08
Abstract: PURPOSE: Provided is a method for providing a controlling chemicals by spraying method, thereby preventing precipitation of chemicals and spraying it without air pressures. CONSTITUTION: The method for providing a controlling chemicals is characterized by providing an undiluted solution of a controlling chemicals in an undiluted solution container(1) through a pipe(4) to a chemicals container(2) by a motor(P) and simultaneously providing tap water from a tap water pipe(3); and providing a partial controlling chemicals to nozzles(15, 15', 15'') equipped to a controlling chemicals providing pipe by switching a valve switches(6, 10, 11) on or off by a controller(5) and a control panel(CP) and flowing a partial controlling chemicals backward to the chemicals container(2) through a backward flow pipe(8) by a motor pump(M.P).
Patent KR-20040005323-A (KR)
Title: Pneumatic tire having improved noise
Inventor: LIM SEONG BIN
IPC: B60C11/12
Filed: 2002-07-09
Abstract: PURPOSE: A pneumatic tire having the improved noise performance is provided to make the depth of kerfs of blocks having large, medium, and small sizes different, to enlarge rigidity difference of large and small blocks, and accordingly to expand a noise-dispersed area and reduce noise. CONSTITUTION: A pneumatic tire having the improved noise performance is composed of a tread unit(1), a sidewall unit, and a bead unit. The tread unit is divided by a plurality of blocks(11,12,13) having different sizes, respectively. Depths(D1,D2,D3) of kerfs(111,122,133) formed to the blocks to the sizes of blocks are mutually different. The depth of the kerf formed at the large block is thinnest, the depth of the kerf of the middle block is deeper than the kerf of the large block, and the depth of the kerf of the small block is deeper than the kerf of the middle block.
Patent KR-20030007146-A (KR)
Title: Control structure for nozzle needle in fuel injection valve
Inventor: CHISHIMA MASATOSHI
IPC: F02M47/02
Filed: 2002-07-12
Abstract: PURPOSE: To provide a control structure of a nozzle needle in a fuel injection valve capable of canceling the dispersion of an injection amount in every fuel injection valve connected to a common rail by reducing an irregular fluctuation of the fuel injection amount at the time of lifting of the nozzle needle, and bringing a ratio of the fuel injection amount to an energization time of a magnet of a back pressure control part to an ideal state. CONSTITUTION: It is aimed that a space between an apex part (apex part 31A of an arcuate cross section) of a valve piston 31 and an opposed surface 23B forming a closing orifice 23 is gradually narrowed. The closing orifice 23 communicated with a control pressure chamber 19 is opened/closed by a control valve element (valve ball 24) to open/close an injection hole by the nozzle needle through the valve piston 31. A throttle cross section area between the apex part of the valve piston 31 (apex part 31A of the arcuate cross section) and an opening 23A of the closing orifice 23 is gradually reduced as it approaches from an outer edge part 31B of the valve piston 31 to the opening 23A.
Patent KR-20040006399-A (KR)
Title: Apparatus and method for correcting focus of CRTs
Inventor: HWANG GYU HWAN
IPC: G09G1/00
Filed: 2002-07-12
Abstract: PURPOSE: A CRT focus correcting device and a method thereof are provided to correct the focuses of R/G/B CRTs individually for correcting the focus per position of a screen precisely, thereby reducing the number of lens and simplifying the curvature shape of the lens. CONSTITUTION: A CRT focus correcting device includes a memory(411) for storing focus correcting data for respective R/G/B CRTs(407-409) per screen position. The focus correcting data includes focus correcting data respectively synchronized by horizontal and vertical synchronizing signals. A control part(410) reads out the focus correcting data according to horizontal and vertical synchronizing signals input from an image signal processing part(406). The read focus correcting data is output to an R/G/B focus correcting signal generating part(413). The focus correcting signals generated by the R/G/B focus correcting signal generating part are applied to R/G/B focus coils(407a-409a) for correcting the CRT focus.
Patent KR-20040006881-A (KR)
Title: System and method for implementing lottery ticket transaction using credit card and an exclusive device
Inventor: YOO JU HAN
Filed: 2002-07-16
Abstract: PURPOSE: A method for selling lottery tickets using a credit card and an exclusive device and a system for implementing the same are provided to enable a lottery ticket purchaser to purchase a lottery ticket using a credit card and purchase a wanted lottery ticket number. CONSTITUTION: A lottery ticket processing server(100) stores various information executed by a lottery ticket purchaser such as lottery ticket information, member information, issuing information, and prize winning money information in a lottery ticket database. A web server is connected to a network(110), executes a communication through an HTTP(Hyper Text Transfer Protocol), and supplies a web page necessary for lottery ticket purchasers on the Internet. A card checking unit(120) processes payment information of a credit card and transmits the payment information to a VAN(Value Added Network) company server(130) through a VAN network(160). The card checking unit(120) processes and transmits lottery ticket information being inputted by a user. An exclusive device(121) is connected to the card checking unit(120) and transmits information inputted by a user to the card checking unit(120). The VAN company server(130) is connected to the card checking unit(120) and a credit card company server(140) and transmits credit card information, payment information, and lottery ticket information to a related server. The credit card company server(140) receives/processes payment information by a credit card from the VAN company server(130), or receives prizewinner information from a consignment businessman server(150) and supplies prize winning money to a credit card connection account.
Patent KR-20040009802-A (KR)
Title: A package sawing apparatus having rubber plate for fixing frame that having bended type mount surface
Inventor: CHOI TAE GYU
IPC: H01L21/78
Filed: 2002-07-25
Abstract: PURPOSE: A package cutting device including a frame fixing rubber board having a curved loading side is provided to prevent a cutting error by fixing firmly a frame and performing a cutting process. CONSTITUTION: A package cutting device comprising a frame fixing rubber board having a curved loading side includes a chuck table, a cutting member, and an injection nozzle. The chuck table includes a vacuum table(13) and a frame fixing rubber board(17). A vacuum hole(14) is formed on the vacuum table(13). The frame fixing rubber board(17) includes an absorbing groove(19) connected to the vacuum hole(14) of the vacuum table(13). The frame fixing rubber board has a frame loading side and an inclined side. A gradient of the inclined side of the frame fixing rubber board is 30 degrees.
Patent KR-20040011741-A (KR)
Title: A highly accurate variable gain amplifier with compensations
Inventor: HONG SEONG CHEOL
IPC: H03G7/00
Filed: 2002-07-30
Abstract: PURPOSE: A gain controlled amplifier provided with a compensation circuit is provided to maintain the gain of the gain controlled amplifier constant in response to the control voltage although the external temperature and the power voltage are changed. CONSTITUTION: A gain controlled amplifier provided with a compensation circuit includes a voltage to current converter(501), a gain controlled bias circuit(502) and a gain controlled amplifying unit. The voltage to current converter(501) converts the control voltage signal to determine the gain into a control current signal and outputs the converted control current signal as a proportional current compensated for the temperature and the power voltage. The gain controlled bias circuit(502) supplies the bias in such a way that the power gain has a linear characteristics curve as an exponential function in response to the control voltage by receiving the proportional current outputted at the voltage to current converter(501). And, the gain controlled amplifying unit amplifies the bias control voltage generated at the gain controlled bias circuit(502) to have a constant gain by receiving the control voltage.
Patent KR-20040011254-A (KR)
Title: Fabrication method of semiconductor device
Inventor: CHO GYEONG SU
IPC: H01L21/3105
Filed: 2002-07-30
Abstract: PURPOSE: A method for manufacturing a semiconductor device is provided to be capable of preventing hemispheric parts from being formed at the upper surface of an oxide layer after carrying out an SOG(Spin On Glass) layer forming process. CONSTITUTION: After a plurality of lower metal lines(13) is formed at the upper portion of a semiconductor substrate structure(11), the first plasma oxide layer(14) is formed along the upper surface of the resultant structure. Then, an SOG layer(15) is formed at the upper portion of the resultant structure for completely filling the gaps between the lower metal lines. The second plasma oxide layer(16) is formed on the entire surface of the SOG layer. At this time, the second plasma oxide layer is formed by carrying out a plasma CVD(Chemical Vapor Deposition) at the upper portion of the SOG layer during the heat treatment of the resultant structure.
Patent KR-20040013349-A (KR)
Title: An apparatus for removing oil leaked from the bogiflex of a coal dryer
Inventor: LEE GYEONG SU
IPC: C10B57/10
Filed: 2002-08-06
Abstract: PURPOSE: An apparatus for removing oil leaked from bogiflex of coal dryer is provided to reduce work load of workers and prevent environmental pollution at the same time by promptly removing the leaked oil without manual operation of workers if oil is leaked from the bogiflex installed at the body of the dryer. CONSTITUTION: The apparatus(1) for removing oil leaked from bogiflex of coal dryer comprises an apparatus frame(10) installed at one side of dryer body(110) of the coal dryer in such a manner that the apparatus frame(10) is moved back and forth along a base(12) arranged on the ground; a body coherence roll(30) installed at an upper side of the apparatus frame(10) in such a manner that the body coherence roll(30) is closely adhered to the outer circumferential surface of the dryer body(110); an oil adsorption roll(50) installed at the center of the apparatus frame(10) so that the oil adsorption roll(50) removes leakage oil of the bogiflex flowing on the outer circumferential surface of the dryer body(110) when the body coherence roll(30) is closely adhered to the dryer body(110); and a pressing roll(70) installed at a lower side of the apparatus frame(10) in such a manner that the pressing roll(70) presses the oil adsorption roll(50) to guide oil of the oil adsorption roll(50) into an oil collecting box.
Patent KR-20040016723-A (KR)
Title: Nitride semiconductor LED and fabrication method for thereof
Inventor: LEE SEOK HEON
IPC: H01L21/20
Filed: 2002-08-19
Abstract: PURPOSE: A nitride semiconductor light emitting device is provided to improve capacity and guarantee reliability by reducing a crystal defect generated by a difference in a thermal expansion coefficient and a lattice constant between a GaN-based single crystal layer grown on a substrate and the substrate. CONSTITUTION: The substrate is prepared. A GaN-based buffer thin film is formed on the substrate. An AlyGa1-yN/GaN short period superlattice(SPS) layer of a sandwich structure is formed on an undoped GaN thin film or an In-doped GaN thin film which is formed on the buffer thin film(wherein 0<=y<=1). The first electrode layer of an n-GaN layer is formed on the AlyGa1-yN/GaN SPS layer. An active layer of a multi-quantum well structure is formed on the first electrode layer. The second electrode layer of a p-GaN layer is formed on the active layer.
Patent KR-20040021298-A (KR)
Title: EMI/EMC shielding sheet and the method for making it
Inventor: JANG GWAN SIK
IPC: H01B1/02
Filed: 2002-09-03
Abstract: PURPOSE: A conductive sheet composition for shielding the electromagnetic wave and its preparation method are provided, to improve electromagnetic waves-shielding effect, electric conductivity, fluidity, dispersion and tensile strength. CONSTITUTION: The conductive sheet composition comprises 30.0-70.0 wt% of a conductive metal powder and 30.0-70.0 wt% of an organic binder, wherein the organic binder comprises 8.0-13.0 wt% of poly(vinyl chloride), 5.0-10.0 wt% of nitrocellulose, 4.0-6.0 wt% of dioctyl phthalate, 2.0-4.0 wt% of dibutyl phthalate, 0.5-1.0 wt% of phosphate, 40.0-62.5 wt% of toluene, 8.0-10.0 wt% of methyl ethyl ketone and 10.0-15.0 wt% of ethyl acetate. Preferably the conductive metal powder is at least one selected from the group consisting of Ag, Cu, Ag-coated Cu, Ni, Al, Sn and Zn, and has a flake, spherical, amorphous or mixed shape.
Patent KR-20030022701-A (KR)
Title: Plasma display panel and method of fabrication thereof
Inventor: OGAWA SHOTARO
IPC: H01J11/22
Filed: 2002-09-04
Abstract: PURPOSE: To provide a structure of a barrier rib of a plasma display panel capable of preventing generation of display defect caused by chipping of the barrier rib and a manufacturing method of a plasma display panel capable of forming a desired difference in height for the barrier ribs. CONSTITUTION: When forming barrier ribs for a plasma display panel for forming discharge cells between a front panel and a back panel, a barrier rib 1 is formed to have a projecting part extending to the outside of the discharge cell at least at a side of the discharge cell (pixel 2) and, by adjusting the length of the projecting part and composition rate of the material of the barrier rib, the projecting part is formed to be taller than the peripheral of the discharging cell by the effect of burning shrinkage. By contacting the barrier rib (the barrier rib 1a of outside the pixel) and the front panel, the pixel defect can be prevented from occurring even if the barrier rib 1 is suffered from chipping.
Patent KR-20040022889-A (KR)
Title: Electro Mechanical Brake System with fail safe function
Inventor: KANG MIN GU
IPC: B60T17/18
Filed: 2002-09-10
Abstract: PURPOSE: An electro-mechanical brake system with fail-safe function is provided to pull over the vehicle safely by performing fail-safe function for directly controlling braking force of a wheel brake with a brake actuator in failure of the brake system from wrong operation of a pedal stroke displacement sensor during traveling at high speed. CONSTITUTION: An electro-mechanical brake system comprises a pedal stroke displacement sensor(2), a brake lamp switch(14), an electro-mechanical brake control unit(12), a brake actuator(13) and an actuator. The electro-mechanical brake control unit performs fail-safe function by receiving signals from the pedal stroke displacement sensor and the brake lamp switch in abnormally operating the electro-mechanical brake system from wrong operation of the pedal stroke displacement sensor during high speed traveling, and the brake actuator including a motor or solenoid controls braking force of a vehicle by receiving the driving signals from the electro-mechanical brake control unit.
Patent KR-20040023189-A (KR)
Title: Method and circuit for transmitting address signal using global address line in common
Inventor: RYU GI HYEONG
IPC: G11C8/00
Filed: 2002-09-11
Abstract: PURPOSE: An address transmission method using a global address line sharing method and a circuit thereof are provided to reduce the number of global address lines and the power consumption by using simultaneously a global address generator and a local address generator. CONSTITUTION: A global address generator(40) generates an X-address signal synchronized with a row access strobe signal and a Y-address synchronized with a column access strobe signal. The X-address signal and the Y-address signal are transmitted to a local region through a sharing global address line(50). A local address generator(60) receives and latches the X-address signal from the global address line(50) by the delayed row access strobe signal and the Y-address signal from the global line by the delayed column access strobe signal.
Patent KR-20040023195-A (KR)
Title: A managing method of alarm state for transmitting system
Inventor: CHO HYEON SUK
IPC: H04B17/00
Filed: 2002-09-11
Abstract: PURPOSE: A method for managing an alarm state in a transmission equipment is provided to accurately manage a current operation state by managing the history of fault generation and operation information of each function unit and retrieving and outputting alarm state information in a sub-control unit by the request of a main control unit. CONSTITUTION: A sub-control unit detects an alarm state and an operation state of each function unit(S100), manages the history of the alarm state and the operation state, and automatically reports a current operation state to a main control unit(S110). The sub-control unit judges whether the output of the detected alarm state is requested(S120). If the output of the detected alarm state is requested, the sub-control unit retrieves a current alarm state and reports the retrieved current alarm state to the main control unit(S130). The main control unit displays the current alarm state(S140).
Patent KR-20040023393-A (KR)
Title: System and method for managing a disaster using the network
Inventor: LEE PYEONG HWA
IPC: G06Q50/26
Filed: 2002-09-11
Abstract: PURPOSE: A system and a method for managing disasters are provided to prevent disaster occurrence beforehand by searching climate information transmitted from a climate related organization and searching rainfall information by each year, month, and time. CONSTITUTION: A climate information collector(200) collects the climate information such as a wind direction, a water level, a snowfall, and a rainfall. An operator server(300) receives the climate information from the climate information collector through the information communication network(100). A disaster warning receiver(400) receives the climate information, the disaster warning and effect sound, and the information for a damage state from the operator server, and transmits the login information and the information for the countermeasure contents against the damage state to the operator server.