baber/WOPTO huggingface dataset:
Patent KR-20000008679-A (KR)
Title: Convergence revising method when changing the screen ratio
Inventor: AHN SOO JEONG
IPC: H04N7/01
Filed: 1998-07-15
Abstract: PURPOSE: A method of convergence revising when changing the screen ratio is provided to improve quality of the screen by transferring the revising data as the distortion of screen is prevented. CONSTITUTION: The method comprises a memory(21) which outputs and memorizes the convergence control data of the sample pixel among the pixels of image. A method also comprises micom(22) which reads and outputs convergence control data of the memory(21) and an interval managing part(24) which calculates the control ratio of the whole pixels after performing with the convergence control data which is output from the micom(22) using the memory for interval managing. Therefore, the method has the effect of improving the quality of screen by changing the controlling pixel points of the revising data.
Patent KR-20000009008-A (KR)
Title: Device for controlling brake liquid pressure
Inventor: YOON SUNG HYUN
IPC: B60T8/00
Filed: 1998-07-20
Abstract: PURPOSE: A device for controlling a brake liquid pressure is provided to improve the responding characteristics by inter-connecting the master cylinder and accumulator which is pressurized by the rotational force of an engine. CONSTITUTION: A controlling device for a brake liquid pressure is composed of:a liquid pressure pump(24) for pumping the brake liquid by using a rotational force of an engine(21); an accumulator(30) for being fed with a brake liquid pumped from the liquid pressure pump for storing the pressurized brake liquid; a master cylinder(41) for creating the brake liquid pressure by a piston action against the compressed force of the accumulator; and a bypass valve(32) installed in the inlet and the outlet sides of the liquid pressure pump for returning the brake liquid pressure excessively created. Therefore, the bypass valve returns the brake liquid at the outlet side of the liquid pressure pump to the liquid pressure pump.
Patent KR-20000009438-A (KR)
Title: Method for removing defects in liquid crystal display device
Inventor: CHOI JAE HO
IPC: G02F1/1343
Filed: 1998-07-24
Abstract: PURPOSE: A method for removing defects in a liquid crystal display device is provided to remove defects of pixels without additional processes. CONSTITUTION: A passivation film(30) is deposited on a substrate(10) on which a gate line, a gate insulating film, a semiconductor pattern, and a data line(400) are formed. The passivation film formed on a pixel area and the data line is then removed by etching process. At this time, a semiconductor material which remains around the data line is naturally removed. Then, a transparent conductive film is deposited and patterned to form a pixel electrode(400) in the pixel area and to leave an indium tin oxide(ITO) pattern(410) on the data line exposed to the outside. In this case, the pixel electrode is effectively etched by the passivation film having a high step difference. Therefore, short between adjacent two electrodes or between adjacent data lines does not occur.
Patent KR-20000010463-A (KR)
Title: Number pad with lamp lighting and extinguishing device of automobile using computer network
Inventor: LEE WON HANG
IPC: B60Q1/56
Filed: 1998-08-01
Abstract: PURPOSE: A number pad with lamp of automobile to provided to easily recognize robbed automobile or criminal car and to prevent waste of manpower to control a car for training of the blackout using lighting and extinguishing device controlled by computer system. CONSTITUTION: The number pad with lamp of automobile comprises a computer system, a number pad lighting and extinguishing signal launcher, a supporting battery, and a control module. In the number pad with lamp of automobile, the computer system enables to launch of extinguishing and extinguishing cancel signal to air for lamp of number pad in car selectively or concurrently. The number pad lighting and extinguishing signal launcher selectively launches the extinguishing and extinguishing cancel signal to recognize the car of number pad with extinguishing lamp. The supporting battery selectively outputs a driving voltage of lamp of number pad by a generator. The control module controls lamp of number pad for lighting and extinguishing in response to the extinguishing and extinguishing cancel signal including information of registration number for a car form the number pad lighting and extinguishing signal launcher.
Patent KR-20000013235-A (KR)
Title: Microwave dielectric ceramic composition for low temperature firing
Inventor: PARK JAE WHAN
IPC: C04B35/46
Filed: 1998-08-06
Abstract: PURPOSE: A microwave dielectric ceramic composition for low temperature firing contains an appropriate amount of additives such as B2O3, Sb2O3 and Y2O3 to obtain a dense sintered compact even at a low temperature of 1200°C and has good microwave characteristics. CONSTITUTION: A microwave dielectric ceramic composition for low temperature firing comprises (Mg,Ca)TiO3 as a principal component, and additives such as B2O3, Sb2O3 and Y2O3 so as to obtain a dense sintered compact even at a low temperature of 1200°C and has good microwave characteristics, wherein 0.2-0.5 wt.% of B2O3 is added.
Patent KR-19990029309-A (KR)
Title: 가교결합가능한 수성 염기 현상가능한 포토레지스트 조성물 및 이의 사용방법
IPC: G03F7/00
Filed: 1998-08-14
Abstract: 원자외선 및 i-라인중에서 사용하기 위한 수성 염기 현상가능한 고해상도 포토레지스트 조성물이 개시되어 있다.  본 발명의 조성물은 페놀 중합체 수지, 산 촉매반응하에 이들 수지와 반응할 수 있는 글리코우릴 유도체로부터 선택된 가교결합제, 광산 발생제, 유기 용매로 구성된다.  본 발명의 조성물은 고해상도의 네가티브 톤 상(0.25 ㎛ 미만)을 제조하는데 특히 유용하다.
Patent KR-19990081751-A (KR)
Title: 스위치가 붙은 동축 커넥터
IPC: H01R13/70
Filed: 1998-08-28
Abstract: 본 발명은 소형화가 가능한 스위치가 붙은 동축커넥터를 제공하기 위한 것으로서, 스위치 단자(40)를 길이방향을 따라 단면이 S자인 형상으로 굴곡시키고 단자수용실(3)의 횡방향 일측으로 외팔보 형태로 지지하고, 스위치 단자(40)의 가동 접촉부(44)를 플러그 삽입공(15)을 넘어 스위치단자(40)측까지 연장하여 형성되는 고정단자(30)의 고정 접촉부(34)와 탄성적으로 접촉시킨다. 
     스위치 단자(40)는 좁은 단자 수용실(3)내에서 충분한 스프링 스팬을 얻을 수 있으므로 스위치가 붙은 동축커넥터를 소형화할 수 있다.    또 고정단자(30)의 전장을 길게 할 수 있으므로 고정 접촉부(34)가 납땜 플럭스로 덮이는 일이 없으므로 접촉불량이 생기지 않는다.
Patent KR-20000015666-A (KR)
Title: Vcr recording prevention circuit and the method
Inventor: LEE SANG CHONG
IPC: G11B15/02
Filed: 1998-08-31
Abstract: PURPOSE: A VCR recording prevention circuit and the method are provided so that recording operation cannot be proceeded when a recording prevention signal is sensed in case of copying a video signal including recording prevention signal. CONSTITUTION: In the VCR recording prevention circuit and the method, the VCR comprises: an automatic gain adjustment part(10) to adjust and output the gain to maintain a uniform output; a display part(20) to display a video signal through the automatic gain adjustment part(10); a sound output part(30) to output a sound from the video signal; and a deck mechanism part(40) to proceed a recording operation actually at video tape. Furthermore, the VCR comprises a recording prevention signal detection part(100) and a control part(200).
Patent KR-20000018918-A (KR)
Title: Central controller and a controlling method for long distance detecting system
Inventor: CHA IN JUN
IPC: G08C19/00
Filed: 1998-09-07
Abstract: PURPOSE: A central controller and the controlling method is provided to reduce the cost of installing and difficulty in obtaining a space for installation by installing a plurality electronic wire modem and to enhance the effect of detecting by detecting at the most suitable time. CONSTITUTION: The method and device comprises a ROM(100) where a program related to the operation of the device is stored; a ram(110) where the data is stored; a CPU(120) which controls the overall operation of the device; a serial communication part(130) which transmits the respond fROM the CPU to the detecting computer; three electronic wire modem(130a-130c) which transfers and amplifies the received order and outputs the order; three coupler(140a-140c) which transmits the received signal to the three electronic wire modem; a power part(160) which supplies operation power to each part of the CPU; and an address decoder(180) which enables the ROM, ram, real time control part and the electronic wire modem.
Patent KR-19990007526-A (KR)
Title: 단자 블록
Filed: 1998-09-21
Abstract: 본 발명은 단자 블록에 관한 것으로, 좀 더 구체적으로는 건물의 단자함에 설치되어 간선의 연결 및 간선과 가입자 선로를 연결하는 단자 블록에 관한 것으로, 단자 블록은 내부 공간을 갖고 단자핀들이 내부 공간에 설치되며, 단자핀의 접지부와 각각 대응되는 부분에 장착홀들이 형성되는 몸체와, 장착홀상에 설치되어 상하로 직선 이동되면서 전선을 단자핀에/으로부터 접속/분리시키기 위한 다수의 홀더들을 포함하여, 홀더를 위에서 누르면 전선이 홈에 끼워지면서 단자핀에 접속되고, 홀더를 위로 올리면 전선이 홈에서 빠지면서 단자핀으로부터 분리된다.
Patent KR-19990030246-A (KR)
Title: 표시소자의 구동회로 및 구동방법
IPC: G09G3/36
Filed: 1998-09-29
Abstract: 본 발명은 표시소자의 구동회로와 구동방법에 관한 것으로서, 
     스위치제어회로(213)는 전압(VCH)으로 동작하고 통상동작시는 전하운반용 콘덴서(CC)의 축적전하를 승압용 콘덴서(C2∼C4)에 분배함으로써, 전원전압(VDD)보다 높은 승압전압(V2∼V4)을 생성하고, 신호구동회로 및 주사구동회로는 VDD 및 V1∼V4 중에서 적당히 선택한 전압을 액정표시소자에 인가하여 구동하며, 전원이 절단되어 전원전압(VDD)이 저하하면 전원전압검출회로(30)가 이것을 검출하여 스위치(SW9)가 ON하고, 또 스위치제어회로(213)는 콘덴서(CG)의 축적전하로 동작하여 스위치(SW1∼SW8)를 모두 ON하며, 따라서 콘덴서(CG 및 C1∼C4)의 축적전하가 방전되고 전원회로(21)의 출력전압이 모두 접지전압(VSS)으로 되어 휘선 등의 이상한 표시가 이루어지는 것을 방지할 수 있는 것을 특징으로 한다.
Patent KR-20000025159-A (KR)
Title: Optical record medium
Inventor: SONG TAE SUN
IPC: G11B7/007
Filed: 1998-10-08
Abstract: PURPOSE: An optical record medium is provided to form the same mark to a guide groove and a land by the usage of an optical beam of the same laser output by reducing a heat transmissibility by the optical beam to form more deep guide groove than a guide groove of a track. CONSTITUTION: An optical record medium(40) comprises a substrate(24) having a track structure of a land and a guide groove, and an information recording layer(26) and a reflection film(28) sequentially formed on the substrate(24). At both sides of a track of a guide groove, a guide groove(36) are formed more deep in the depth than the depth of guide groove of the track. The reflection film(28) formed over the information recording film(26) plays a role of an entire reflection with regard to incident optical beam, and plays a role of absorbing a heat at the same time.
Patent KR-19990066801-A (KR)
Title: 물품 공급 장치
IPC: B65G47/28
Filed: 1998-10-30
Abstract: 다수의 물품을 소정의 위치, 간격, 자세로 정돈시켜 공급하는 작업을 안정되게 행할 수 있는 물품 공급 장치를 제공한다. 
     반송로 양측부에 배열된 롤러를 회전시키고, 다수의 청과물을 반송로 중앙부로 이동시키면서 반송한다.  중합 또는 집합된 상태로 반송되는 청과물을 전후로 분산시켜 반송로 중앙부를 따라 1열로 정렬시켜 반송하므로, 분류용 컨베이어를 구성하는 리시빙(receiving) 롤러의 중앙부에 대하여 청과물을 정확하고 확실하게 이동시킬 수 있으며, 다수의 청과물을 소정의 위치, 간격, 자세로 정돈시켜 공급하는 작업을 안정되게 행할 수 있다.
Patent KR-19990024059-A (KR)
Title: 축전지를 이용한 전기 에너지 공급장치
Filed: 1998-11-13
Abstract: 본 발명은 축전지를 이용한 전기 에너지 공급장치에 관한 것으로, 특히 환경 친화적인 방법으로 전기 에너지를 얻어 일반 전기가 공급되지 않는 장소에서 사용할 수 있도록 하는 것이다. 
     본 발명은 기존의 축전지와, 상기 축전지의 전원공급에 의해 제어동작하는 콘트롤박스와, 상기 콘트롤박스의 제어신호에 의해 작동하는 구동모터와, 상기 구동모터와 벨트로 연결하여 작동하는 발전기와, 상기 발전기의 발전신호에 의해 직류 및 교류전원을 얻어 부하를 구동할 수 있도록 구성한다. 
     본 발명은 축전지를 전원으로 구동모터를 구동케 함으로써 발전기로 전기 에너지를 얻고, 얻어진 전기에너지로 부하를 구동케 함은 물론 재충전용으로 사용가능하게 하는 것으로 축전지를 장기간 사용가능하게 하는 것이다.
Patent KR-20000033337-A (KR)
Title: Hose for draining of full automatic washing machine
Inventor: PARK YONG SEOK
IPC: D06F39/08
Filed: 1998-11-23
Abstract: PURPOSE: A drain hose of a full automatic washing machine is provided to prevent the remove of the drain hose without adding an excessive load to a combining portion of the drain hose. CONSTITUTION: A protrusion for winding a cord(103) to wind a power cord is formed in the rear face of a top cover(102) of a washing machine(101), and a hanging slot of hose(105) is formed in an extending flap(104) extended in the protrusion for winding the cord(103). When the washing machine(101) is installed or transported to the other place, a transport of a washing machine(101) is convenient by hanging a hanging hole(112) of a drain hose(111) in the hanging slot of hose(105) formed in the rear face of the top cover(102). Because a combining portion of the drain hose(111) and the hanging slot of hose(105) are located on the same plane, the drain hose is hung on a straight line in the state without applying the twisting in the drain hose(111).
Patent KR-19990014592-A (KR)
Title: 칼라 슬라이더와 그제조방법 및 장치
IPC: A44B19/44
Filed: 1998-11-25
Abstract: 본 발명은 칼라 슬라이더와 그 제조방법 및 장치에 관한 것으로, 다수개의 단위물림요소를 성형하기 위한 캐비티가 형성된 금형에 지지테이프를 배치하고, 원료 공급부로 부터 공급되는 2색 이상의 성형재료를 성형재료주입수단에 의해 색상별로 격리시켜 가열 및 배출하며, 상기 성형재료공급부로 부터 금형의 주입구에 이르는 외부성형재료이송로를 2개 이상의 그룹의 조합으로 격리시켜 서로 다른 색상의 성형재료를 색상별로 이송시키고, 상기 성형재료를 상기 금형에 구비된 복수개의 주입구를 통하여 단위물림요소성형홈에 주입하여 칼라 슬라이더를 사출성형하는 칼라 슬라이드파스너 제조방법을 제공한다. 그리고, 슬라이드파스너의 지지테이프에 결합되는 복수개의 단위물림요소를 적어도 2색 이상의 다른 색상으로 성형하기 위한 다색성형수단이 구비되어 구성되는 칼라 슬라이드파스너 제조장치 및 이에 의해 제조되는 칼라 슬라이드파스너를 제공한다. 
     이러한 본 발명은 슬라이드파스너의 지지테이프에 각기 다른 색상을 갖는 단위물림요소를 순차적으로 반복되도록 용이하게 형성할 수 있다. 또, 슬라이드파스너의 색상 및 패턴을 다양하게 표현할 수 있고, 종래의 슬라이드파스너를 부착한 경우 발생되는 패턴단절부를 제거할 수 있으므로 각종 의류, 가방 및 휴대용품의 종류에 따라 디자인의 미감을 향상시키고, 설계 자유도를 향상시키는 이점이 있다.
Patent KR-20000034502-A (KR)
Title: Device for opening door of microwave oven
Inventor: PARK JUN SANG
IPC: F24C7/08
Filed: 1998-11-30
Abstract: PURPOSE: An opening device of door for a microwave oven is provided to easily open a door with a soft touch by using a magnet in the door of microwave oven. CONSTITUTION: A user touches a switch(106) arranged in a front panel portion(204) to open a door. An AC of power portion is fed to an AC converting portion by closing the switch(106) from an opened state. The AC converting portion converts to a DC by feeding the AC from the power portion and an electromagnet becomes a magnet having a magnetism by flowing the DC generated from the AC converting portion in a coil rolled in the electromagnet. A polarity of electromagnet(102) is decided according to a direction rolled the coil. When the electromagnet becomes an N-polar magnet by flowing the current, the door is opened by generating a repulsive force with an N-polar of permanent magnet. The switch connects both ends by being a closed state only at a touched moment and the switch operates in the opened state again after the touch.
Patent KR-20000038335-A (KR)
Title: Method for controlling fast forward power
Inventor: HAN JONG SEON
IPC: H04B7/26
Filed: 1998-12-05
Abstract: PURPOSE: A method for controlling fast forward power is provided to perform an accurate error collection by using an energy of a similar traffic signal measured according to a power control group and an energy of a backward power control bit transmitted through a forward traffic channel. CONSTITUTION: An error collection to a power estimation value of a similar traffic signal is performed for performing an accurate inner loop forward power control to an error occurred according a sudden change of a wireless channel. An energy of the similar traffic signal is generated according to a power control group. An energy of a backward power control bit extracted in a forward power control bit extracting unit(10) is measured according to the power control group. The backward control bit is extracted from a traffic signal received through a rake receiver(1). An error correction loop is performed using the energy of the similar traffic signal and an energy of the backward power control bit.
Patent KR-19990063057-A (KR)
Title: 차량정비용 리프트
IPC: B66F7/00
Filed: 1998-12-15
Abstract: 본 발명은, 동력을 별도로 설치하지 않고, 또한 작업자의 손을 번거롭게 하는 일 없이 간단한 구성으로 피트부를 항상 플랫하게 하는 차량정비용 리프트를 제공한다. 
     본 발명에 있어서는, 차량을 올려놓는 플레이트(2)를 수납하는 피트(4)에 피트 커버(10)를 설치하고, 그 피트 커버(10)의 밑면에 복수의 기도(起倒) 자유로운 각주를 늘어뜨려 설치하며, 그들이 링크기구에 의하여 연결되어 동시에 기립 또는 경도 동작한다.  이 각주는, 플레이트(2)의 업시에는 스프링의 복원력에 의해 기립하고, 다운시에는 플레이트(2)의 다운동작에 의하여 경도하며, 피트 커버(10)는 플레이트(2)의 하강력에 의하여 피트 아래쪽으로 대피한다.
Patent KR-20000040080-A (KR)
Title: Apparatus and method for providing additional service
Inventor: KIM CHAN
IPC: H04L29/06
Filed: 1998-12-17
Abstract: PURPOSE: An apparatus and a method for providing an additional service are provided to simplify a structure of a bus by using an MVIP(Multi Vendor Integration Protocol) bus. CONSTITUTION: An apparatus for providing an additional service comprises a processor portion(10), a multitude of line interface portion(20,30), and a multitude of vocoder portion(40,50). The processor portion controls a whole system. The line interface portions converts input PCM(Pulse Code Modulation) data to ADPCM(Adaptive Differential Pulse Code Modulation) data or pre-stored ADPCM data to the PCM data. The vocoder portions converts the input PCM data to data adapted to internet or the data input from the internet to the PCM data.
Patent KR-20000040519-A (KR)
Title: Multi-functional switch of indoor unit in air conditioner
Inventor: KIM JEONG GYU
IPC: F24F13/00
Filed: 1998-12-18
Abstract: PURPOSE: A multi-functional switch of an indoor unit in an air conditioner is provided to improve the appearance and to easily assemble by arranging an auxiliary switch around a main switch in a circular shape, centering on the main switch for turning on/off the power of an indoor unit. CONSTITUTION: A combination hole(22) is inserted in a fixing projection(14) formed on a rear panel(10) bracket(12), and a PCB(20) is fixed by combining a screw(50). The plural combination grooves(34) inserted in an auxiliary contact point part(24) of the PCB, and a central hole(42) of a switch knob(40) is inserted in the main switch so that the knob is assembled. Lastly, a front cover(16) is combined with a rear cover(10) to expose the switch knob outside through a penetration hole(18), and plural hanging pieces(40a) are inserted in the plural hanging grooves and are rotated in a radius direction of the rotation of the knob. Accordingly, when a remote controller is manipulated or the central main switch is pressed, an on/off signal is transmitted to the PCB. Further, when the auxiliary switch is pressed, an increase and decrease signal of airflow is transmitted so that the action state of the air conditioner is controlled.
Patent KR-20000040675-A (KR)
Title: Optical instrument for lead inspection
Inventor: BAE JIN HYEONG
IPC: H05K13/08
Filed: 1998-12-19
Abstract: PURPOSE: An optical instrument for lead inspection is provided to obtain an image without a limitation to the position of elements using one optical system by allowing the mirror to have a conic structure. CONSTITUTION: An optical instrument for lead inspection comprises: a camera for capturing an image corresponding to an element mounted on a substrate; an illuminating unit in which a plurality light emitting diodes(LEDs) are arranged with a predetermined interval to encircle an optical axis of the camera, for illuminating light beams to be directed towards the mounted elements; and a conic mirror for converting path of the light beams reflected by the element to be directed towards the camera. The illuminating unit is any one of circular, rectangular and octagonal shapes. The LEDs are turned on/off by an external control signal.
Patent KR-20000042202-A (KR)
Title: Table roll for reducing deviation in shape and temperature at front end portion of hot rolled steel sheet
Inventor: LEE HUI BONG
IPC: B21B39/00
Filed: 1998-12-24
Abstract: PURPOSE: A table roll is provided to evenly cool a hot rolled steel sheet by reducing the contacting area of the table roll with the hot rolled steel sheet. CONSTITUTION: A hot rolled steel sheet is transferred by a table roll(14) containing plural contacting units(11) and a connecting unit(12). Herein, the contacting units contact with the hot rolled steel sheet, and the connecting unit connects the contacting units while being integrally formed with the contacting units. The table rolls are installed toward the proceeding direction of the hot rolled steel sheet. And, a contacting unit(11a) of a left table roll(14a) is inserted between contacting units(11b) of a right table roll(14b). Herein, the contacting unit of the left table roll and a connecting unit(12b) of the right table roll are installed to be near while not interfering to each other. Therefore, each table roll rotates freely. Then, the hot rolled steel sheet is transferred to a coiler by being contacted to the contacting units of the table rolls. Moreover, the corner portion of the contacting unit is curved for preventing the generation of scratch at the lower end portion of the hot rolled steel sheet. Therefore, the contacting area with the hot rolled steel sheet is reduced.
Patent KR-19990063531-A (KR)
Title: 패드 부식 감소 방법
IPC: H01L21/8242
Filed: 1998-12-28
Abstract: 본 발명은 반도체 제조시 패드 부식을 감소시키는 하드 마스크를 제공하는 방법에 관한 것이다.  하드 마스크는 제 1 및 제 2 하드 마스크층 사이에 에칭 정지층을 포함한다.
Patent KR-20000043916-A (KR)
Title: Metalization of semiconductor device
Inventor: KIM SU JIN
IPC: H01L21/28
Filed: 1998-12-29
Abstract: PURPOSE: A metalization of a semiconductor device is provided so as to form a metal-silicide layer having an uniform thickness and concentration at the low surfaces of the contact holes, and also at the interior sidewalls of the contact holes too, so that a contact resistance may be improved all the more. CONSTITUTION: A method forming the metalization of the semiconductor device contains the following steps: a step to furnish the silicon substrate to form an inter-layer dielectric layer having the contact holes; a step to form a barrier metal layer including a silicon layer on the inter-layer dielectric layer including the contact holes; and a step to form the metal-silicide layer through the thermal treatment of the barrier metal layer.
Patent KR-20000045569-A (KR)
Title: Recycling method of construction wastes using plasma
Inventor: JANG JOON SEOP
IPC: B29B17/00
Filed: 1998-12-30
Abstract: PURPOSE: A recycling method of construction wastes using plasma is provided which produces organic slags to make construction wastes innocuous and recycles them as materials for construction. CONSTITUTION: A recycling method of construction wastes using plasma is as follows: a first step which crushes a converter slag gained from iron manufacturing process finely and dries it; a second which mixes the dried converter slag with the wastes to keep the predetermined basicity; and a third which fuses the mixed wastes and converter slag with plasma and discharges them in a slag form. The converter slag contains the following components of: 40-46 wt% of calcium oxide, 10-15 wt% of silicone oxide, 1-4 wt% of aluminum oxide, 2-8 wt% of magnesium oxide, 18-30 wt% of iron oxide and 1-5 wt% of manganese oxide.
Patent KR-20000046401-A (KR)
Title: Controller for hydraulic pressure when excavator hardens ground
Inventor: JEONG GWANG SIK
IPC: E02F9/20
Filed: 1998-12-31
Abstract: PURPOSE: A controller of hydraulic pressure is provided to smoothly harden ground by an excavator with self-weight of a boom. CONSTITUTION: In order to harden ground with a bucket installed in an excavator, a boom approaches the ground and the bucket is adjusted to move the rear of the bucket near the ground. Then an operation mode switch(40) is selected and the boom is lifted to the certain position from the ground with a joystick(28). While placing the joystick in neutral, a solenoid valve(19)'s position is switched when an On/Off switch(20) is suddenly turned on. Pressed flux of a subsidiary pump(20) is delivered to a flux controller(13) through a pilot line(22) and a shuttle valve(18) and at the same time, one part of pilot pressed flux is delivered to one water pressure chamber(24) of a boom control spool(3). Thus, the boom falls down to the ground, pushing pressure flux of a large-caliber chamber by self-weight.
Patent KR-20000046757-A (KR)
Title: Developing apparatus
Inventor: YOON JAE CHEOL
IPC: H01L21/027
Filed: 1998-12-31
Abstract: PURPOSE: A developing apparatus is to automatically control a proper amount of a liquid developer which is supplied to an injecting portion, thereby prevent a development defect. CONSTITUTION: A developing apparatus comprises a liquid developer tank(100) for storing an amount of liquid developer, an injecting portion(120) for injecting the liquid developer, a connecting pipe(140) of which one end is connected to the liquid developer tank and the other end is connected to the injecting portion, a flow controlling unit(160) which is mounted in the connecting pipe to control the amount of the liquid developer supplied from the liquid developer tank, a light sensor which is disposed at the flow controlling unit to detect a proper amount of the liquid developer, and a filter(180) which is mounted in the connecting pipe to filter the liquid developer. The flow controlling unit comprises a light-emitting sensor(a) and a light-receiving sensor(b).