baber/WOPTO huggingface dataset:
Patent KR-20000061061-A (KR)
Inventor: KIM SEON YEONG
IPC: H01L21/76
Filed: 1999-03-23
Abstract: PURPOSE: A method for isolating device by using a silicon spacer is provided to improve the quality of MOS transistor by uniformly forming a gate oxide film. CONSTITUTION: A pad pattern consisting of pad oxide film pattern(23) and a pad nitride film pattern(25) is formed on a semiconductor substrate(21). The pad pattern has a under cut area(u). A silicon spacer for filling the under cut area is formed at a sidewall of the pad pattern. A field oxide film(31) is formed between the pad patterns. Then, the pad oxide film pattern(23) is exposed by removing the pad nitride film pattern(25). Silicon remainder(R) existing in the under cut area(u) is thermally oxidized. Then, the exposed pad oxide film pattern(23) and the silicon remainder(R) are removed by using an oxide film etching solution.
Patent KR-19990078209-A (KR)
IPC: B32B27/36
Filed: 1999-03-24
Abstract: 본 발명은 80중량% 이상이 폴리에틸렌 테레프탈레이트(PET)로 이루어진 기저 층과 에틸렌 2,6-나프탈레이트 단위 80중량% 이상 및 에틸렌 테레프탈레이트 단위 20중량% 이하 및/또는 지환족 또는 방향족 디올 및/또는 디카복실산으로부터의 단위 20중량% 이하를 포함하는 중합체 또는 중합체 혼합물로 이루어진 2개 이상의 외층을 포함하며, 단 기저 층이 결정화 지연제 20% 이하 및/또는 결정화 온도를 순수한 PET의 결정화 온도 이상으로 증가시키는 제제를 20% 이하 포함하는 투명한 이축 연신 폴리에스테르 필름에 관한 것이다.  당해 필름은 특히 신형 광 시스템(APS) 필름용으로 적합하다.
Patent KR-20000061605-A (KR)
Inventor: JUNG DONG KWAN
IPC: F28F1/00
Filed: 1999-03-29
Abstract: PURPOSE: A convection member, a heat exchanger, and apparatus and method for manufacturing such convection member are provided to allow a smooth fluid flow and achieve a prolonged lifespan of the convection member and improved effectiveness of heat exchange. CONSTITUTION: A convection member is structured in that a head(20) having a plurality of holes is connected from an interior of a housing to an end of a connection pipe of a fluid flow line communicated to the interior of the housing, and a plurality of flow pipes(24) which is fusion-spliced to an inner wall of a hole of both heads so as to guide the fluid flow. Thus, a heat supplied from a heater(32) can be uniformly transferred to the flow pipes by an auxiliary block(34) and inner installed fins(36a-36d).
Patent KR-20000066643-A (KR)
Title: Channel shortening equalizer
Inventor: BAEK JONG HO
IPC: H04B3/04
Filed: 1999-04-20
Abstract: PURPOSE: A channel shortening equalizer is provided to reduce the total impulse response by equalizing a channel having a long impulse response, such as a telephone line, in a time domain. CONSTITUTION: A channel shortening equalizer is composed of a correlation matrix operation unit(310), a coefficient updating unit(320) and a digital filter(330). In process that DMT(Discrete MultiTon) block columns(Xn-2,Xn-1,Xn,Xn+1,Xn+2,...) go by way of a communication channel, received signals(Yn-2,Yn-1,Yn,Yn+1,Yn+2,...) are inputted to the correlation matrix operation unit(310) and the digital filter(330) sequentially. If the received signals(Yn-2,Yn-1,Yn,Yn+1,Yn+2,...) are inputted sequentially, the correlation matrix operation unit(310) calculates correlation matrix components ry(m)=ry(0), ry(1), ry(2),..., ry(M-3), ry(M-2), ry(M-1) and provides them to the coefficient updating unit(320). If the correlation matrix components are inputted, the coefficient updating unit(320) generates filter coefficients using a Durbin algorithm and provides them to the digital filter(330). The digital filter(330) filters the received signals based on the filter coefficients and removes interference between DMT blocks.
Patent KR-19990083604-A (KR)
IPC: H03F3/30
Filed: 1999-04-29
Abstract: 본 발명은 증폭기(AMP)에 대한 출력단에 관한 것으로, 2개의 전원 단자(VCC 및 GND) 사이에 배치된 주 전류 경로를 갖는 제 2 트랜지스터(T2) 및 제 1 트랜지스터를 구비하며, 제 1 트랜지스터(T1)의 바이어스 단자는 증폭기(AMP)의 출력에 접속되어 있고, 제 2 트랜지스터(T2)의 바이어스 단자는 바이어스 전류(BC)를 통해서 증폭기(AMP)의 입력에 접속되어 있다. 
     본 발명에 따른 바이어스 회로는, 
     제 2 트랜지스터(T2)가 포화 상태로 들어가는 순간에 신호를 주는 검출 모듈과, 
     활성화되는 경우에, 상기 트랜지스터가 포화되면, 제 2 트랜지스터(T2)의 바이어스 단자를 고임피던스로 되도록 하는 임피던스 적응 모듈을 포함한다. 
     본 발명은 제 2 트랜지스터(T2)가 포화되는 경우에 나타나는 기생 트랜지스터(PT2)를 통해서 기판상에 주입된 기생 전류의 값을 제한할 수 있다.
Patent KR-20000074058-A (KR)
Inventor: MIN GYEONG SIN
IPC: G01N5/00
Filed: 1999-05-18
Abstract: PURPOSE: A method for measuring a rubber bubble rate is provided to predict several mixing conditions, a bubble degree and a bubble growth speed and to generate and measure the bubble in plural samples within a short time. CONSTITUTION: Impurities on a surface are eliminated by washing each sample with alcohol. The gravity of each sample is measured by using a gravimeter. Silicon oil is poured in a thermostat and regularly kept at a desired reaction temperature. The sample is put between a steel net to prevent the sample from dropping on the reacting surface. The sample is removed after a designated time. The oil on the surface is perfectly eliminated by using alcohol and toilet paper and the sample is dried by a drier. A bubble containing rate in a rubber is calculated from the gravity change before and after reaction by measuring the gravity of each sample with the gravimeter
Patent KR-20000075350-A (KR)
Inventor: LEE KEON SOO
IPC: B23P15/00
Filed: 1999-05-31
Abstract: PURPOSE: A method and an apparatus for cutting an aluminium radiator are provided to machining a radiator by freely controlling thickness, interval and height of radiation wings by a single cutting work, thereby minimizing the working time and improving the productivity. CONSTITUTION: An apparatus for cutting an aluminium radiator includes a driving motor(2) and a reduction element mounted on a table, a rotation shaft(5), a plurality of circular cutting blade(6) connected to the rotation shaft via a V-belt and coupled to the table, a supporting die(7) fixed on the table to move laterally, and a vise(8) mounted at a lower part of the blades for fixing an object(9) to cut, wherein an interval controlling bushing(10) is interposed between the respective circular cutting blades and the cutting blades are combined with larger circular cutting blades(6a) and smaller circular cutting blades(6b) to be fixed according to the size and condition of the object.
Patent KR-20010001103-A (KR)
Title: Shoes for cancelling static electricity
Inventor: CHA IN HO
IPC: A43B13/12
Filed: 1999-06-02
Abstract: PURPOSE: Shoes for removing positive electricity are provided, which get rid of unpleasantness caused by positive electricity by making the same discharged to the ground through the shoes worn. CONSTITUTION: Shoes for removing positive electricity are characterized by being comprised of: an outsole(2) made as one body with a circle-shaped and conductive rubber board(6) at the front center; a thin and conductive sponge layer(7) installed between the outsole(2) and a midsole(3), attached to the outsole(2) and the midsole(3) with a conductive glue; and the midsole(3) made from a conductive non-woven fabric. When the positive electricity is generated, it is discharged to the ground through the conductive midsole(3), the conductive sponge layer(7), and the conductive rubber board(6).
Patent KR-20010001906-A (KR)
Inventor: PARK GYU HYEONG
IPC: F24F13/08
Filed: 1999-06-09
Abstract: PURPOSE: An open/shut-off apparatus is provided to prevent damage to an outer appearance of air conditioner by reducing frictional force between open/shut-off door and space ensuring door. CONSTITUTION: An apparatus comprises a rack(110) arranged in vertical direction within a space ensuring door, a pinion(120) coupled with the rack and which rotates during opening operation of an open/shut-off door and moves the space ensuring door toward a front panel of air conditioner, a motor(130) for providing rotating power to the pinion, a guide rail(140) installed in vertical direction at each of the inner edges of the space ensuring door, and a free roller(150) mounted to the front panel of air conditioner and which is coupled to the guide rail during the forward and backward movement of the space ensuring door so as to prevent vibration of the space ensuring door. The guide rail has at upper and lower surfaces thereof slots formed in a lengthwise direction at which the free roller is coupled. The slot prevents the free roller from being escaped from the guide rail, and defines the limit of the forward and backward movement of the space ensuring door.
Patent KR-20010002836-A (KR)
Title: Cholesteric liquid crystal color filter
Inventor: CHOI SEOK WON
IPC: G02F1/1335
Filed: 1999-06-18
Abstract: PURPOSE: A cholesteric liquid crystal color filter is provided to be capable of realizing a predetermined color with the filter of a single-layer structure by using the filter with two or more pitches. CONSTITUTION: The cholesteric liquid crystal color filter comprises a plurality of color filter regions(51-1,51-2,51-3). The (B+G) color filter region(51-1) is a color filter region which has a pitch for reflecting a blue ray of light and a pitch for reflecting a green ray of light. The (R+G) color filter region(51-2) is a color filter region which has a pitch for reflecting a red ray of light and a pitch for reflecting a green ray of light. The (B+R) color filter region(51-3) is a color filter region which has a pitch for reflecting a blue ray of light and a pitch for reflecting a red ray of light.
Patent KR-20010003609-A (KR)
Title: Continuously variable transmission
Inventor: OH HYO GEUN
IPC: F16H61/02
Filed: 1999-06-24
Abstract: PURPOSE: A continuously variable transmission is provided to rapidly response to the variation of the load, to smoothly transfer the rotary force, and to achieve continuously variable shifting through a simple device, so that the production cost and durability are improved. CONSTITUTION: A continuously variable transmission comprises: a reverse connecting gear(212) to be mounted rotatably on an output carrier shaft(124); a first synchronizer cone(214) to be united with the reverse connecting gear as one body and to be mounted rotatably on the output carrier shaft; a forth connecting gear(216) to have some distance with the first synchronizer cone and to be united with the output carrier shaft as one body; a first forth transfer gear(220) to be linked to the forth connecting gear and to be mounted rotatably on a fixing shaft(218); a second forth transfer gear(222) to have some distance with the first forth transfer gear and to be mounted rotatably on the fixing shaft; a second synchronizer cone(224) be united with the second forth transfer gear and to be mounted rotatably on the fixing shaft; a forth and reverse output gear(226) to be linked to the second forth transfer gear and the reverse connecting gear and to be united with an output shaft(126) as one body; a first clutch hub(228) to be mounted between the first synchronizer cone and the forth connecting gear and to be united with the output carrier shaft as one body; a first sleeve(230) to be mounted on the outer of the first clutch hub; a first synchronizer ring(232) to be mounted rotatably on the first synchronizer cone; a second clutch hub(234) to be united with the first forth transfer gear as one body and to be mounted rotatably on the fixing shaft; a second sleeve(236) to be mounted on the outer of the second clutch hub; a second synchronizer ring(238) to be mounted rotatably on the second synchronizer cone.
Patent KR-20010003729-A (KR)
Inventor: HWANG HAK
IPC: E21F5/14
Filed: 1999-06-25
Abstract: PURPOSE: A reducing method for tunnel blasting noise and the apparatus are provided to reduce the blasting noise efficiently in the inside of a tunnel, and reuse a sound-proofing material, and prevent the environmental pollution, and reduce the cost by minimizing desirable equipments. CONSTITUTION: A reducing method for tunnel blasting noise comprises the steps of; installing soundproof members(120,120a) which are made with laying the compressed material from scrap tires and glass fiber so that blasting noise is absorbed and reflected by the lower soundproof member(120) firstly; and making the blasting noise, transferred through the lower soundproof member(120), absorbed or reflected by the upper soundproof member(120a) secondly, so that the blasting noise is reduced. An apparatus comprises; supporting structures(110,110a) which support in the upper and lower places of a tunnel, and have opened parts(112,112a) in the certain size; the soundproof members(120,120a) which consist of the compressed material from scrap tiers and glass fiber, and installed in the opened parts(112,112a) to be opened in one way; and winches(130,130a) which are installed in the upper and lower parts of the tunnel, and open or close the soundproof members(120,120a).
Patent KR-20010004585-A (KR)
Inventor: MA SUK RAK
IPC: H01L27/11
Filed: 1999-06-29
Abstract: PURPOSE: A method for making SRAM of a thin film transistor type is provided to prevent TFT characteristic deterioration caused by an ion implantation of a node contact, by removing a gate insulating layer after ion-implanting an impurity ion toward a node contact. CONSTITUTION: SRAM of a thin film transistor type includes an access element, a pull-down element, and a pull-up element, and uses a thin film transistor as the pull-up element. The access element, the pull-down element, and an insulating layer(20) having a node contact hole(30) are positioned on a semiconductor substrate(10). The node contact(40B) is provided to make a node contact among the access and pull-down elements and the thin film transistor. The first polysilicon layer is deposited on the insulating layer and the node contact hole surface, is then patterned, and a gate and a node contact of the thin film transistor is formed. A gate insulating layer(50) is formed on the substrate. A photoresist pattern is formed on the gate insulating layer in order to expose the gate insulating layer on the node contact. An impurity ion is ion-implanted in a lower node contact of the exposed gate insulating layer by using the photoresist pattern as an ion-implantation mask. The exposed gate insulating layer is removed by using a photoresist pattern as an etching mask, and thus the node contact is exposed. The photoresist pattern is removed. The second polysilicon layer is deposited on the substrate, and a channel layer(70) of TFT is formed to be contacted with the node contact.
Patent KR-20000047436-A (KR)
Inventor: WATANABE GAJUHIRO
IPC: G05B19/418
Filed: 1999-07-13
Abstract: PURPOSE: An apparatus, a method and a system for conveying semiconductor devices or liquid crystal display devices are provided to improve conveying efficiency. CONSTITUTION: A conveying apparatus includes a main conveying route(1) shaped like a closed loop, and a plurality of subordinate conveying routes(5) each intersecting the main route(1) and also shaped like a closed loop. The main route(1) and the subordinate routes(5) convey cassettes loaded with semiconductor devices or liquid crystal display devices. In addition, the apparatus further includes a plurality of stockers(6) two of which are positioned at an intersecting point between the main route(1) and each subordinate route(5). The stocker(6) conveys or temporarily keeps the cassettes. Moreover, a plurality of processing units(7) are disposed in the vicinity of the subordinate routes(5). Each processing unit(7) receives or returns the cassettes from or to the corresponding subordinate route(5). Therefore, a mean conveyance distance is shortened and conveying efficiency is improved.
Patent KR-20010010535-A (KR)
Inventor: JUNG SI HWAN
IPC: F04B39/02
Filed: 1999-07-21
Abstract: PURPOSE: A rotor of an airtight compressor is provided to prevent an input increase caused by the frictional loss of components and to enhance the efficiency of the compressor. CONSTITUTION: An airtight compressor arranges a crankshaft(5) inside a stator(3), supports the crankshaft by a bearing(16) and places a thrust washer(17) between the rotor and the bearing. The skew angle of the rotor is symmetrically formed in a line. In the upper portion of the rotor, the torque of the crankshaft faces downward. In the lower portion, the torque faces upward. Thus, thrust caused by the skew angle offsets and the frictional loss of the thrust washer is remarkably reduced.
Patent KR-20010011938-A (KR)
Title: Cutting insert with wide range chip breaker
Inventor: KIM GYEONG BAE
IPC: B23B27/22
Filed: 1999-07-31
Abstract: PURPOSE: A cutting insert with a wide range chip breaker is provided to cut chips efficiently even at a finishing cutting area of shallow cutting depth and a rough cutting area of deep cutting depth as well as at an intermediate cutting area by designing a chip breaker as two steps and forming a corner chip breaker proper for efficient chip cutting. CONSTITUTION: A trimming cutting insert(10) is formed by sintering using a metal mold for exclusive use. The cutting insert has an upper face, a lower face, many sides, many corner sides, curved portions(30,31) and a circular aperture penetrated through the center. The upper face has an upper face(15), a rand portion(20), a slant portion(40), chip pocket faces(51a,51b), a finish chip breaker layer(120) and a rough cutting chip breaker layer(140) placed between the curved portions and the upper face. The finish chip breaker layer has a nose-shaped center finishing chip breaker(121) and a pair of subsidiary finishing chip breakers(122a,122b) formed symmetrically. The rough cutting chip breaker has a corner rough cutting chip breaker(141) protruded toward the center of the corner side and a side rough cutting chip breaker(143) recessed toward the main curved portion.
Patent KR-20010017397-A (KR)
Inventor: KIM JUN HUI
IPC: H05B41/26
Filed: 1999-08-11
Abstract: PURPOSE: A cold cathode fluorescent lamp driver inverter is provided to obtain a high efficiency output by minimizing load loss. CONSTITUTION: A driver inverter comprises a piezo-electric transformer(23) for boosting the driving voltage being input to the first side of the piezo-electric transformer to the second side of the transformer; a cold cathode fluorescent lamp(24) operating by the voltage of the second side of the piezo-electric transformer; the first feedback resistance(R3) for detecting the voltage(or current) of the first side of the piezo-electric transformer; the second feedback resistance(R4) for detecting the voltage(or current) of the second side of the piezo-electric transformer; a driving controller(21) for judging a low load state and a low efficiency state in accordance with a reference voltage and first and second feedback voltages(VFB1,VFB2) caused by first and second feedback resistances, and performing control operation in accordance with the result of the judgment; and a driving unit(22) for feeding a driving voltage to the first side of the piezo-electric transformer in accordance with the control signal output from the driving controller.
Patent KR-20010018781-A (KR)
Inventor: PARK SEONG JUN
IPC: B60T8/24
Filed: 1999-08-23
Abstract: PURPOSE: A brake fluid pressure control device miniaturizes and improves the efficiency of hydraulic pump so that brake fluid is supplied promptly and reliably when brake traction control or posture control begins. CONSTITUTION: A brake fluid pressure control device comprises normal open type first solenoid valves(62a, 62b), normal open type electric shuttle valves(64a, 64b), pressure accumulators(66a, 66b) and normal closed type second solenoid valves(67a, 67b). The normal open type first solenoid valves(62a, 62b) are installed in the first flow way(21) connecting the blown port of a hydraulic pump(13) and the outlet of a master cylinder(3) and make the break fluid pass by, go through inflow valves(5a, 5b, 5c) to wheel cylinders(10a, 10b, 10c, 10d). The normal open type electric shuttle valves(64a, 64b) are installed between the outlet of master cylinder(3) and the intake port of the hydraulic pump(13). The pressure accumulators(66a, 66b) are installed in bypassing flow ways(74a, 74b) bypassing blowing pressure from the blown port of the hydraulic pump(13) to the intake port of the hydraulic pump(13) and accumulate certain hydraulic pressure. The normal closed type second solenoid valves(67a, 67b) are installed in the bypassing flow way between pressure accumulators(66a, 66b) and the intake port of the hydraulic pump(13) and maintain the fluid pressure accumulated in the pressure accumulators(66a, 66b).
Patent KR-20010018799-A (KR)
Inventor: JOO IL HWAN
IPC: B60K17/00
Filed: 1999-08-23
Abstract: PURPOSE: A power converting device has a simple structure, thereby being easily manufactured and serviced. CONSTITUTION: A power which is changed the speed thereof by a common speed changing device makes a rotating power to be always generated on a rotation member and a reverse rotation member. Then, a clutch for transmitting the rotating power to driving wheels is mounted with having an interrupting function of the rotating power. A braking device transmits a driving power to the wheel of one side of a vehicle and synchronously maintains a still state of the wheel of the other side of the vehicle when the vehicle reverses or turns. When the driving power is transmitted to wheels, a brake is automatically released.
Patent KR-20010019338-A (KR)
Inventor: JUN SEOK BAE
IPC: B25B11/00
Filed: 1999-08-26
Abstract: PURPOSE: A fixing device for a both-side processing wafer is provided to prevent damage of both sides of a wafer and vibration or bending of the wafer while easily turning over the wafer in the process of processing the both sides of the wafer. CONSTITUTION: A fixing device for a both-side processing wafer includes upper and lower guard rings(22,24) for grasping an edge part of a wafer(10) at upper and lower parts in a circumferential direction, either of the upper and lower guard rings being hinge-coupled rotatably for separating the wafer, fixing elements(42,44) for integrally fixing the upper and lower guard rings, rotation shafts(52,54) fixed for reversing the upper and lower guard rings while grasping the wafer by an outer surface of the fixing element, a fixing chuck(60) formed with an insertion groove(62) for inserting an end of the respective fixing elements, and conveying elements for fixing and conveying the wafer without damaging both sides of the wafer.
Patent KR-20010012015-A (KR)
Inventor: YANG CHANG WOON
IPC: A42B1/20
Filed: 1999-08-28
Abstract: PURPOSE: A throwaway visored hat made of waterproof material for spectators is provided, which protects the eyes of a user from the direct rays a nd is capable of packing as a flat shape. CONSTITUTION: A throwaway hat for spectators is composed of a broad-brimmed part(11) which is formed outside an outer circle(12), an elastic part for wearing the hat on the head, which is cut into several parts(13) of a radial shape, and many pendulums which are hung on the holes(14) that are formed along the outside of the brim to prevent insects from accessing.
Patent KR-20010026703-A (KR)
Inventor: KIM DO IK
IPC: G03B5/00
Filed: 1999-09-08
Abstract: PURPOSE: A noise prevention apparatus for strobo device is provided to protect a control circuit in the strobo device from the bad influence caused by the noise generated by a back electromotive force during strobo charge of camera. CONSTITUTION: An apparatus comprises a battery(10) for supplying power to an oscillation unit(30) arranged within a strobo device; a control circuit unit(20) for supplying a control signal for operating the strobo device to the oscillation unit and a trigger unit(70); the oscillation unit for controlling the charging operation of a charging unit(50); a boosting unit(40) for boosting an input power to a predetermined level; the charging unit for charging the power boosted by the boosting unit; a charge sensing unit(60) for checking the level of voltage charged by the charging unit; the trigger unit for triggering the voltage charged in the charging unit when the control signal for controlling light emitting operation is output from the control circuit unit; a flashing unit(80) for emitting a predetermined volume of light in accordance with the trigger signal output from the trigger unit; a noise prevention unit(90) mounted in the vicinity of the boosting unit and which consists of a pattern formed by connecting lines of conductors and absorbs the noise generated by the boosting operation of the boosting unit.