baber/WOPTO huggingface dataset:
Patent KR-20010003459-A (KR)
Inventor: LEE CHEOL SEUNG
IPC: H01L21/312
Filed: 1999-06-23
Abstract: PURPOSE: A method for manufacturing a semiconductor device is provided to improve the reliability and yield rate of the semiconductor device by preventing the bridge from forming between wires. CONSTITUTION: A metal film is formed on a semiconductor substrate(30). The first ARC(anti-reflection-coating) film(32) is formed on the metal film. Then, the second ARC film(33) is formed on the first ARC film(32). The second ARC film(33) has a grain boundary larger than a grain boundary of the first ARC film(32). The second ARC film(33) has a reflection rate identical to the reflection rate of the first ARC film(32). The metal film includes an aluminum film(31). The first ARC film(32) includes a titanium film(32A) and a titanium nitride film(32B) stacked on the titanium film(32A).
Patent KR-20010003710-A (KR)
Title: Gan semiconductor white light emitting device
Inventor: CHO JANG YEON
IPC: H01L33/30
Filed: 1999-06-24
Abstract: PURPOSE: A GaN semiconductor white light emitting device is provided to improve light emitting efficiency and to simplify a manufacturing process without using a fluorescent material or secondly transition material, by adopting a trichromatic light emitting region in an active layer. CONSTITUTION: A GaN semiconductor white light emitting device comprises an n-type contact layer(220), an n-type clad layer(230), an InGaN active layer, a p-type clad layer(260) and a p-type contact layer(270) which are sequentially formed on a substrate(200). Pluralities of V-shaped grooves are formed on the n-type clad layer. A composition of In of an active layer formed on the n-type clad layer with the V-shaped groove is artificially controlled.
Patent KR-20010003891-A (KR)
Inventor: KIM DONG YON
IPC: H02J9/00
Filed: 1999-06-25
Abstract: PURPOSE: A multi-UPS control system is provided to manage and control changes of UPS. CONSTITUTION: A multi-UPS control system comprises a multiplexer and demultiplexer part(21) which transmits and receives data to and from each UPS sense system(1). A transmission and reception adjusting part(22) adjusts data and data transmitting and receiving places. A united controller(23) deciphers, manages and controls received data to transfer the control command to each UPS. Each UPS sense system(1) consists of an UPS(11), a sensor(12), a controller(13), and a transmission and reception module(14). The UPS(11) adjusts a system power according to an input power. The sensor(12) senses whether the UPS is abnormal. The controller(13) judges the abnormality to manage data transmission and reception. The transmission and reception module(14) transmits data to receive control command.
Patent KR-20010004312-A (KR)
Inventor: KIM JUN SIK
IPC: G02F1/1335
Filed: 1999-06-28
Abstract: PURPOSE: A display device is provided to prevent contrast drop by blocking emission of visible light issuing at an unnecessary period. CONSTITUTION: The display device comprises the first transparent electrode(11) which is formed on an upper surface of a front plate(10). A liquid crystal(12) is formed on the first transparent electrode(11), and the second transparent electrode(13) is formed on a glass plate(30). The second transparent electrode(13) is located on the liquid crystal(12). The first and second transparent electrodes(11,13) are connected to a voltage supply unit(40) for applying an appropriate voltage by a switching signal.
Patent KR-20010010214-A (KR)
Inventor: KIM HYUN TAE
IPC: H04R5/00
Filed: 1999-07-16
Abstract: PURPOSE: A device for removing a stereo acoustic echo and a method thereof are provided to have an improved preprocessing filter and to remove a cross correlation by replacing a half-wave rectifying filter with an orthogonalization filter. CONSTITUTION: A device for removing a stereo acoustic echo has the first and second transmission channels, the first and second speakers each connected to the first and second transmission channels, the first and second microphones which the first and second voice echoes are applied to, and the first and second adaptation filters has the first and second adaptation coefficients by estimating the first and second voice echoes. A preprocessing filter(1) reduces a cross correlation between the first and second channels by subtracting a predetermined value from the processed values when the values of the first and second channel signals are positive, after processing the first and second channel signals with a gram-schmidt function processing device(3) and adding the result values to a corresponding first and second channel signals.
Patent KR-20010011364-A (KR)
Inventor: KANG YANG MUK
IPC: H04N7/14
Filed: 1999-07-27
Abstract: PURPOSE: A method for providing a moving picture service in a portable phone integrated with a television receiver(or a TV phone) is provided to download moving picture data to the TV phone, and to select a desired moving picture file. CONSTITUTION: A controller downloads moving picture data from a computer, and stores the moving picture data in a memory. In a moving picture mode, the controller outputs a moving picture file list for the stored moving picture data on a screen of a portable phone integrated with a television receiver. If a user selects a file of the moving picture file list and requests the execution of the selected file, the controller executes corresponding moving picture file and outputs moving picture on the screen.
Patent KR-20010011789-A (KR)
Title: Write circuit for erasable and programmable read only memory
Inventor: OH HYEONG SEOK
IPC: G11C16/10
Filed: 1999-07-30
Abstract: PURPOSE: A circuit for writing to an EPROM(Erasable Programmable Read Only Memory) is provided to perform a stable write operation against variation of boost voltages. CONSTITUTION: The device includes a cell array(100), a word-line decoder(150), a bit-line decoder(160), a source voltage sensor(140), a decoding part(130), power switches(120-122), a voltage dropping part(110) and N-MOS(Metal Oxide Semiconductor) transistors(NM1-NM16). According to a write signal(Wpgm), the word-line decoder(150) decodes 8-bit address(ADD£7:0|) and enables selected word lines. According to the write signal(Wpgm), the bit-line decoder(160) decodes 8-bit address(ADD£7:0|) and enables selected bit lines. The source voltage sensor(140) senses a level of a boost voltage(VPP) and generates sensed signals(A,B). The decoding part(130) decodes the sensed signals(A,B). According to an output signal from the decoding part(130) and the write signal(Wpgm), the power switches(120-122) supply the boost voltage(VPP). According to output signals from the power switches(120-122), the voltage dropping part(110) drops the boost voltage(VPP). According to output signals from the bit-line decoder(160), the N-MOS(Metal Oxide Semiconductor) transistors(NM1-NM16) supplies the dropped voltage to the cell array(100).
Patent KR-20010017046-A (KR)
Inventor: CHOI YEONG DEUK
IPC: H04B1/40
Filed: 1999-08-06
Abstract: PURPOSE: A CDMA(Code Division Multiple Access)/AMPS(Advanced Mobile Phone System) local switching apparatus using an RF switch is provided to satisfy both CDMA and AMPS and to improve IMD or sensitivity specification by selectively switching a local level inputted from a mixer using two RF switches according to a mode. CONSTITUTION: A CDMA/AMPS local switching apparatus using an RF switch is a PLL(Phase Locked Loop)(10), the first RF switch(20), the first induction coil(30), the second induction coil(40), the second RF switch(50), a TR part(60) and a mixer(70). The PLL(10) receives a frequency signal and outputs a phase-locked tuning voltage to the input terminal #5 of the first RF switch(20). The first RF switch(20) receives high/low signals dependent on mode control signals from the TR part(60) through its input terminals #4 and #6 and outputs voltage to the first induction coil(30) and the second induction coil(40) through its output terminals #1 and #3. The first induction coil(30) receives voltage outputted from the output terminal #1 of the first RF switch(20) and supplies voltage to the input terminal #1 of the second RF switch(50). The second induction coil(40) receives voltage outputted from the output terminal #3 of the first RF switch(20) and supplies voltage to the input terminal #3 of the second RF switch(50). The second RF switch(50) receives high/low signals dependent on mode control signals from the TR part(60) through its input terminals #4 and #6, receives voltage from the first induction coil(30) and the second induction coil(40) through its input terminals #1 and #3 and outputs voltage to the mixer(70) through its output terminal #5. The TR part(60), comprised of a resistor(R) and a transistor(Q), receives voltage and mode control signals through the resistor(R) and outputs high/low signals to the input terminals #4 and #6 of the first RF switch(20) and the second RF switch(50). The mixer(70) receives voltage outputted from the output terminal #5 of the second RF switch(50) and mixes an RF signal outputted from the second RF switch(50) and a local signal.
Patent KR-19990078798-A (KR)
Title: 보정코일스피커
Filed: 1999-08-09
Abstract: 본 발명은 기존 스피커의 동작을 보다 더 정밀하고 완벽한 상태로 동작 
     시키기 위한 것이다. 
     종래에는 증폭기에서 직류전원이 흐르면 스피커의 위치가 앞으로 또는 
     뒤로 밀려 나와서 동작하였기 때문에 일반적인 특성 저하는 물론 실제의 
     음과 많은 차이가 나는 문제점이 있었다. 
     본 발명은 이상의 문제점을 해결하고자 발명한 것으로 이 발명의 요지는 
     스피커가 동작하고 있는 동안이라도 스피커의 위치를 보정하는데 있다.
Patent KR-20010017569-A (KR)
Inventor: CHO GYEONG YEON
IPC: E04G21/02
Filed: 1999-08-12
Abstract: PURPOSE: A concrete temperature crack reduction method is provided to reduce the temperature crack of a concrete by decreasing differences between internal and external temperature of a concrete while curing the concrete surface. CONSTITUTION: A concrete temperature crack reduction method comprises the steps of cooling a concrete mixture using liquid nitrogen inside a batching plant, an exclusive mixer or a drum of a truck mixer, concreting a concrete mixture to a concrete structure, then curing the surface of a concrete structure; or cooling aggregate, cement and water by liquid nitrogen, forming a concrete mixture, then concreting to a concrete structure, and curing the surface of a concrete structure, so that the temperature differences between internal and external temperature of a concrete while curing the concrete surface is decreased because the concreting temperature is lowered using liquid nitrogen before concreting, and the temperature crack of a concrete structure is reduced and the stability of a concrete structure is secured.
Patent KR-20010018138-A (KR)
Inventor: PARK GYEONG BIN
IPC: H01J29/48
Filed: 1999-08-17
Abstract: PURPOSE: An electron gun for a color cathode-ray tube is provided to improve a focus of an edge portion as well as a center of a screen by inserting an intermediate electrode and using voltages of a focus electrode and an anode electrode. CONSTITUTION: A plurality of cathodes radiate three electron beams in an in-line direction toward a fluorescent surface. A focus electrode(12) and an anode electrode(13) focus the three electron beams on the fluorescent surface. An intermediate electrode(17) is mounted between the focus electrode and the anode electrode for forming a main lens. An exterior voltage which is applied to form a four-electric pole lens is divided into a static voltage and a dynamic voltage. The focus voltage and the anode voltage are distributed and applied to the intermediate electrode(17) through a resistor(18). The focus voltage is supplied again to a dynamic electrode opposed to the intermediate electrode through the resistor.
Patent KR-20010019970-A (KR)
Inventor: BAE TAE SIK
IPC: B60H1/00
Filed: 1999-08-31
Abstract: PURPOSE: A heating/cooling device for a vehicle is provided to keep humidity of an indoor space regular by supplying the proper amount of cold/hot air to the indoor space and to raise the humidity when indoor air of a vehicle is dry in winter. CONSTITUTION: A humidifier(7) having a water level senor(9) is mounted, and a feed pipe(10) is provided to the humidifier. The feed pipe is connected with a discharge port(11). A humidity sensor(12) is set in a vehicle to control the humidifier. A heating/cooling device includes the humidifier for keeping humidity of the indoor space of a vehicle regular. Therefore, the heating/cooling device keeps the humidity of the indoor space regular all the times while the vehicle is traveling in winter or summer. The humidifier is driven by each sensor and prevented from overheating to supply the proper amount of humidifying vapor. Thus, the heating/cooling device always keeps the indoor space of the vehicle pleasant.
Patent KR-19990084179-A (KR)
Title: 휴대용 가스용기
Filed: 1999-09-21
Abstract: 본 발명은 휴대용 가스용기에 관한 것으로서 보다 상세하게는 내용물을 충입할 수 있는 본체를 합성수지재로 성형함으로서 가공공정이 간단하고 용기내에 충진된 가스의 소모량을 용이하게 파악할 수 있도록 본체의 소정부위에 측정눈금을 형성시킨 휴대용 가스용기에 관한 것인바, 본 발명은 가스를 충진하는 내부의 충진공간이 보이도록 투명성을 구비한 합성수지재로 이루어지며 외주면의 적정부위에는 충진된 가스의 양을 측정할 수 있도록 측정눈금을 구비한 본체와 상기 본체 상부에 가스를 일정한 압력으로 토출시키는 밸브수단을 구비하면서 카세트식 휴대용버너에 착탈이 용이하도록 연결판이 형성된 머리부를 접착수단을 이용하여 고정 결합하여 이루어진 특징이 있다.
Patent KR-20010029013-A (KR)
Inventor: HONG SANG WON
IPC: F24F11/00
Filed: 1999-09-28
Abstract: PURPOSE: An air conditioner with refrigerant refill function and method for controlling operation of the same is provided to prevent deterioration of cooling capacity caused by refrigerant deficiency and improve user convenience by eliminating manual refill work. CONSTITUTION: An air conditioner comprises an auxiliary refrigerant storing unit(219) installed at a refrigerant pipe connecting a compressor(211), an indoor heat exchanger(215) and an outdoor heat exchanger(212); a motor operated valve(218) for controlling refrigerant discharge from the auxiliary refrigerant storing unit; a sensing unit for sensing deficiency of the refrigerant flowing in the refrigerant pipe; and a micro computer(224) for refilling the refrigerant pipe with refrigerant by opening the motor operated valve if the refrigerant deficiency is sensed by the sensing unit. The sensing unit includes a temperature detection unit(232) for detecting the outdoor temperature, and a current detection unit(231) for detecting the operation current being applied to the compressor and transmitting the detected operation current to the micro computer.
Patent KR-20000023922-A (KR)
Inventor: HOWARD Y S JUNG
IPC: A63B53/00
Filed: 1999-10-13
Abstract: PURPOSE: Provided are a golf club head with unchangeable gold color and high strength, an exclusive use rotating shaft connected by exclusive use consent, and a compounding shaft for correcting direction error of ball by torque. CONSTITUTION: Using copper base alloy containing Al, Si, Ag, Co, Ma, Zn, Be, and Cr having enhanced strength and hardness, wedge-type golf putter which has multiple hozels and hitting face at the end of axis of ordinate, or iron golf club head which has one connecting shaft and hitting face at the end of axis of abscissa are manufactured. The golf club head is connected by installing rotating gear in main body and tip and using shaft capable of rotation for axis of ordinate and axis of abscissa, or is connected a shaft made by mono-mandrill methods to iron head.
Patent KR-20000029075-A (KR)
Inventor: ANDO HIROMI
IPC: B60T13/56
Filed: 1999-10-14
Abstract: PURPOSE: A hydraulic booster is provided to smoothly apply even if execution is prolonged by reducing an ineffective impellent force when a brake pedal is stepped. CONSTITUTION: A hydraulic booster is comprised of a shaft hole of a power piston valve main body(5), a valve sheet for the air of a plunger(7), a valve sheet(9) for negative pressure, conical faces(37,38), a valve spring(12), a returning spring(13) and an input shaft(6). Herein, an ineffective impellent force generated when a brake pedal is stepped is reduced since an entering force is reacted on the plunger so that the brake can be smoothly manipulated even if a pedal rate is set up small.
Patent KR-20010005454-A (KR)
Inventor: KUBOTA KOHEI
IPC: C22C18/02
Filed: 1999-10-20
Abstract: PURPOSE: A zinc alloy is provided to improve pickup part so that a creep resistant characteristic and an aging dimension changing ratio of pickup parts become same as those of a magnesium alloy and an aluminum alloy by manufacturing the pickup parts using the zinc alloy which does not contain aluminum wherein a creep rates is a specific value or less and an aging dimension changing ratio is within a specific value. CONSTITUTION: The zinc alloy made magneto-optical pickup parts are manufactured by die casting using the zinc alloy which does not contain aluminum and wherein a creep rate at 100°C and 25 MPa is 1.5x10-4%/hour or less and an aging dimension changing ratio at 60°C until 1000 hours is within ±0.01%. Hereupon, at least one kind of copper, nickel and manganese of 3 weight % or less in total is preferably contained in order to increase the strength of the zinc alloy and also 0.5 weight % or less titanium is preferably contained in order to control structure. Aging contraction is not generated in the zinc alloy having these alloy components.
Patent KR-20010038705-A (KR)
Title: Grain washer
Inventor: SUL SANG JOON
IPC: A47J43/24
Filed: 1999-10-27
Abstract: PURPOSE: A grain washer is portable and washes grain rapidly to reduce the amount of water used and prevents grain from being crushed. CONSTITUTION: A grain washer comprises a body(10), a filtering partition(20), a lid(30), an inscribed gear groove(38), a handle(32), a supporting shaft(37), upper supporters(50), an inner and an outer coil spring bolts(51, 52), outer and inner gears(54, 53), fixing pieces(36), a drainage pipe(80) and a lower body(70). The body has a space(11) containing water and selective grain and a mouth(13) and a grip(12) on the periphery thereof. The filtering partition(20) is a net inserted into a fixing groove(14) and passes water and filters grain. The lid(30) has more than one O-ring(31) inserted on the periphery thereof. The inscribed gear groove(38) is formed around the inner circumference of the lid(30). The handle(32) with a rotating knob(33) rotates a rotary shaft(34) installed inside the lid(30). The supporting shaft(37) is fixed on the rotary shaft(34) and rotates together. The multiple upper supporters(50) are formed with certain gaps between and fixed on the periphery of the supporting shaft(37) to rotate together. The inner and the outer coil spring bolts(51, 52) are installed vertically penetrating the upper supporters(50). The outer gears(54) are engaged with inscribed gears(38) of the lid(30) and rotate. The inner gears(53) are engaged with the outer gears(54) and rotate. The fixing pieces(36) are formed on the periphery of the lid(30) and caught by catching grooves(15) to prevent the lid(30) from rotating. the drainage pipe(80) discharges water inside of the body(10) outward and has a stopper(81) on one side thereof. The lower body(70) has rubber packings(71).
Patent KR-20010038816-A (KR)
Inventor: LEE SANG WON
IPC: H01M2/10
Filed: 1999-10-27
Abstract: PURPOSE: A sealed battery and a cap assembly of the sealed battery are provided to secure safety of the battery by blocking the current flow or/and clearing the internal pressure when the internal pressure of the battery is increased to more than the regulated value. CONSTITUTION: The cap assembly (26) of a sealed battery comprises a can (22) carrying an electric generating means (28); a variable plate (30) united and sealed at the opened mouth of the can (22) which is deformed by the internal pressure of the battery; a cover cap (32) having a current restricting element (34) and a vent hole (32a) installed at the upper part of the variable plate (30); a fixed plate installed at the lower part of the variable plate (30) with an insulator (36) interposed, wherein the fixed plate (38) is connected to one electrode of the electric generating means (28); a vent hole (38a) and an upward protrusion (38b) formed on the fixed plate (38); a welding part (42) welded between the protrusion (38b) of the fixed plate (38) and the variable plate (30) for breaking the current by being separated from the internal pressure of the battery having a pressure more than the regulated pressure value; and a fracture part (44) in which grooves are formed surrounding the welding part (42) of the variable plate (30), and the fracture part (44) is broken at the internal pressure of more than the regulated pressure value, thereby simultaneously breaking the current and clearing the internal pressure, wherein the separation of the welding part (42) and breaking of the fracture part (44) are simultaneously or independently made.
Patent KR-20000000494-A (KR)
Inventor: YOUN HOO HAN
IPC: C08L23/14
Filed: 1999-10-29
Abstract: PURPOSE: A synthetic resin pipe containing jade is provided which is used as piping material for heating. Waves irradiated from jade purify harmful matters and stimulate blood circulation. CONSTITUTION: The pipe is produced by mixing 71.5-96.2 wt% of polypropylene copolymer, 0.5-1.4 wt% of Di-T-Butylperoxide as cross-linking agent, 0.2-1.1 wt% of antioxidant (1076), 3-25 wt% of powdered kidney stone having a particle size of about 300-500 mesh and 0.1-1 wt% of pigment; heating and melting the mixture at 150-290°C for 20-30 min, followed by extrusion molding.
Patent KR-20010045120-A (KR)
Inventor: JUNG GWANG MUK
IPC: C07K1/14
Filed: 1999-11-03
Abstract: PURPOSE: Provided are sphingomyelinase separated from bovine brain and a method for purifying the enzyme so as to be used in developing medications against brain diseases such as Parkinson's disease and Alzheimer disease. CONSTITUTION: Sphingomyelinase, integral membrane protein, exists in nerve cell membranes of bovine brain and hydrolyzes sphingomyelin to produce ceramide and phosphocholine. The enzyme is active at pH 6.0-9.0, in particular, pH 7.5, depending on Mg¬(2+). A method for purifying sphingomyelinase is comprised of the next steps of: i) homogenizing tissues of bovine brain and eliminating cell remnants and nucleus; ii) obtaining extracts from centrifuged cell membrane pellets in buffer solution containing ammonium sulfate; iii) destroying the extracts in buffer solution having X-100 which passed through anion exchange chromatography; and iv) purifying supernatant obtained after centrifugation through a series of chromatographies.
Patent KR-20010047225-A (KR)
Inventor: LEE SANG WON
IPC: H01M10/0525
Filed: 1999-11-18
Abstract: PURPOSE: A cathode active material of lithium ion secondary battery is provided, which reduces the deposition of lithium metal and side reaction between an electrolytic solution and the cathode active material. And a method for preparing the same is also provided, which produces the cathode active material having excellent physical properties with simple process without using an expensive device. CONSTITUTION: The method comprises steps of: (i) after melting pitch at a temperature of 300-450 deg.C, removing solvent soluble component from the molten pitch to extract β-resin therefrom; (ii) after adding hydrogen to the β-resin, obtaining bulk mesophase carbon precursor by treating the hydrogen added β-resin to become heavy; (iii) pulverizing the bulk mesophase carbon precursor into an average grain size of 3-50 micrometers; (iv) doping a boron-containing compound to the bulk mesophase carbon precursor gone through the step (ii) or the step (iii); and (v) heat-treating the boron-containing compound doped bulk mesophase carbon precursor.
Patent KR-20000062169-A (KR)
Title: 감열식 유량센서
IPC: G01P5/12
Filed: 1999-11-24
Abstract: 본 발명은 유량검출정밀도 및 감도가 높은 감열식 유량센서를 얻는다. 
     감열저항막으로 된 발열체(4)가 평판상기판(1)의 표면에 형성되고, 발열체 형성영역의 하부에 있는 평판상기판(1)을 부분적으로 제거해서 유량검출용 다이어프램(12)이 구성되어서 된 유량검출소자(14)와, 피계측유체의 흐름방향으로 표면을 평행하게 배치해서 된 지지체(16)을 구비하고, 유량검출소자(14)가 지지체(16)의 표면에 형성된 凹부(18)내에서 표면을 거의 면위치가 되도록 지지고정되어있다. 
     그리고, 박판상부재(24)가 캐비티(13)를 폐쇄하도록 유량검출소자(14)의 이면에 부착되어있다.