baber/WOPTO huggingface dataset:
Patent KR-19990085214-A (KR)
Title: 식물성섬유가�첨가된 배수성 아스팔트 혼합물
Filed: 1998-05-15
Abstract: 본 발명은 배수성 아스팔트 혼합물에 관한 것으로 혼합물의 구성을 최대 직경이 19mm 이하이고 4.75mm에 머무는 조골재가 중량비로 65∼89％이며, 직경이 0.075mm 이하의 미립자가 중량비로 2∼7％이고, 나머지는 0.075∼4.75mm의 세골재를 9∼28％와 섬유질인 첨가제를 0.5∼0.7％ 첨가하여 배합하여 여기에 결합재로 사용하는 아스팔트는 기존의 아스팔트를 사용하며 양으로는 중량비로 5∼7％를 투입하고 혼합물을 다진후 공극율은 15％ 이상 되도록 하여 기존의 배수성 아스팔트 혼합물과 같이 배수의 기능은 기본적으로 충족시키며 제조비용의 절감으로 시공 및 포설의 상용화가 되도록 하고 혼합물의 탈리 방지와 높은 내구성을 가져 수명을 연장 시키도록 한 것이다.
Patent KR-19980087125-A (KR)
Title: 증기발생방법 및 그 장치
IPC: B01F3/04
Filed: 1998-05-15
Abstract: 본 발명은, 증기 발생 방법 및 장치에 관한 것이다. 
     일반적으로 증기 발생 방법 및 장치는 소정의 가스를 생성하기 위한 제어인자가 많고,피증발액을 가스화 하기 위해 엄밀한 온도제어를 필요로 한다. 또한, 많은 캐리어가스를 필요로 하고, 피증발액 (재료)의 소비량 변화에 따라 정량성, 재현성에 문제가 생기기 쉽다. 또한 일정량의 가열 탱크나 증발접시를 필요로 하기 때문에 구조가 복잡하고 대형화되어, 코스트가 높아지고, 장치 설계의 자유도에 제한이 있다. 
     본 발명에서는 증기매체용 기체의 유속을 음속까지 가속함과 동시에 증속하는 공정과, 증속된 상기 기체속으로 피증기액을 공급해서 돌발적으로 충격파를 발생시키는 공정과, 발생시킨 충격파 에너지를 이용해서 상기 피증기액을 안개 상태로 하는 공정을 통해 문제점을 해결하는 증기 발생처리 방법 및 그 장치가 제시되어 있다.
Patent KR-19990085581-A (KR)
Title: 히터판을 이용한 열진공 챔버
IPC: B64G7/00
Filed: 1998-05-20
Abstract: 본 발명은 지상에서 우주환경을 모사하는 열진공 챔버에서, 독립식 히터판을 설치하여 저렴한 비용으로 태양광을 포함한 우주환경을 간단히 모사시키도록 하는 히터판을 이용한 열진공 챔버에 관한 것이다. 
     이러한 본 발명은 슈라우드가 내장된 열진공 챔버에 있어서, 위성체의 바깥쪽에 알루미늄판을 수직으로 설치하되 상기 알루미늄판에는 와이어 히터를 위성체쪽으로 배열한 후 알루미늄 테이프로 부착하여 알루미늄판과 위성체의 태양광 조사면사이에 독립적으로 복사열전달이 이루어지도록 설치하므로써 이루어진다.
Patent KR-20000000521-A (KR)
Title: Method for encoding turbo code and transmitter thereof
Inventor: LEE JEONG WOON
IPC: H03M13/37
Filed: 1998-06-01
Abstract: PURPOSE: A method for encoding turbo codes is provided to use an error correction technique by using turbo codes for low speed data and to improve the function for high speed data. CONSTITUTION: The method for encoding turbo codes comprises: a step to encode by inserting a predetermined data which are informed to a receiving terminal to original data. The step to encode comprises a step to delete the inserted bits wherein the inserted bits are PN code or a random bits. Bits inserted again instead of the bits deleted at a turbo decoder are bigger than the original data. A transmitter comprises a PN code generator(210) to generate PN codes, a multiplexer(200) to multiplexing the random bits and the original data and a turbo encoder(230) to encode the multiplexed signal.
Patent KR-20000002275-A (KR)
Title: Production method of semiconductor memory
Inventor: PARK SEUNG HYUN
IPC: H01L21/8232
Filed: 1998-06-18
Abstract: PURPOSE: A production method of a semiconductor memory is provided to improve the reliability of the semiconductor memory by preventing a short-circuit or a double-circuit of the metal wiring. CONSTITUTION: The production method of the semiconductor memory comprises: produced MOS transistor on a substrate(1); installed a flattening film upper substrate produced the MOS transistor; exposed a source of the MOS transistor; produced a capacitor(3) contacted in the source; installed an oxidation film upper side of the capacitor and the flattening film; etched an upper part of the oxidation film installed in the boundary part of the upper the capacitor, a memory cell area, and a circumference circuit area.
Patent KR-20000002517-A (KR)
Title: Coolant inlet structure for hermetically-sealed-typed compressor
Inventor: KIM TAE MIN
IPC: F04B39/00
Filed: 1998-06-22
Abstract: PURPOSE: A coolant inlet structure for a hermetically sealed typed compressor is provided to reduce the operation noise of the compressor by directly conveying a coolant inlet from outside toward an inlet muffler. CONSTITUTION: The coolant inlet structure for a hermetically sealed typed compressor compresses:a coolant inlet device installed by passing through a hermetically sealed vessel; an inlet muffler(11) to transmit an inlet coolant from the coolant inlet device to a pressing unit, and to reduce a noise; a connecting cap installed to be inserted in the inlet muffler by elastically supporting by an elastic material; many blades(23,24) located in an inlet hole of the inlet muffler.
Patent KR-20000003007-A (KR)
Title: Defrost method for refrigerator
Inventor: JUN YONG DUK
IPC: F25D21/00
Filed: 1998-06-25
Abstract: PURPOSE: A defrost method for a refrigerator is provided to reduce power consumption because a cooling efficiency reduces by quickly forming a frost around a freezer and a driving time gets longer. CONSTITUTION: The defrost method for a refrigerator comprises:stopping a driving of a freezer if it judges a defrost time; by judging if it rises over a first critical temperature by driving only a cooling rotation fan and by detecting a temperature of a freezer; judging if it rises over a second critical temperature by driving a heater(10) and by detecting a temperature of the freezer when judged a rising; operated a general operation of a refrigerator when judged a rising.
Patent KR-20000003401-A (KR)
Title: Pinned photodiode of image sensor and manufacturing method thereof
Inventor: LEE JOO IL
IPC: H01L27/14
Filed: 1998-06-29
Abstract: PURPOSE: A pinned photodiode of an image sensor is provided to obtain the wanted "Quantum efficiency" by stably and safely depleting. CONSTITUTION: The pinned photodiode of an image sensor comprises: the semiconductor layer of the first conduction; the first doping area(deep N-) formed inside the semiconductor layer and having to be layered the second conductive impurities; and the second doping area(shallow N-) formed between the upper first doping area of the top part among the first doping area, and the surface of the semiconductor layer.
Patent KR-19980065137-A (KR)
Title: 숯가루를 부직포, 합성수지 필름 또는 종이 시이트에 부착시킨복합재
Filed: 1998-06-24
Abstract: 본 발명은 숯가루를 부착시킨 시이트상 복합재에 관한 것으로서, 본 발명의 복합재는 예컨대 부직포, 종이류, 천연 또는 합성수지제 필름 또는 막과 같은 시이트상 기질(1)층, 상기 시이트상 기질층(1)에 도포된 접착제층(2) 및 상기 접착제층(2)에 분말 형태로 분쇄 및/또는 파쇄된 숯가루가 부착된 입자층(3)으로 이루어진다.  본 발명에 따른 복합재는 원적외선 및 음이온의 방출 및 고유의 흡착효과가 우수한 숯에 넓은 표면적을 제공하여 생체의 발육 및 상태에 양호한 영향을 미칠 수 있도록 제품화한 것으로서, 농림수산업 분야에서 작물재배 및/또는 어류의 양식, 축산업에서의 가축 사육, 또는 건축용 내장재로서 사용될 수 있는 용도를 가지는 한 것이다.
Patent KR-20000004420-A (KR)
Title: Thin film transistor liquid crystal display
Inventor: CHOE GYU WOON
IPC: G02F1/1362
Filed: 1998-06-30
Abstract: PURPOSE: A thin film transistor liquid crystal display is provided, which can basically prevent a Shot Mura. CONSTITUTION: A thin film transistor liquid crystal display comprises: a gate bus line (12) and a data bus line (14) to be vertically and horizontally formed on a glass substrate; a first and second gate electrodes (13a, 13b) to be vertically outputted from the gate bus line (12) and to be horizontal installed with the data bus line (14); a first and second source electrodes (15a, 15b) to be overlapped with a certain portion of the first and second gate electrodes (13a, 13b); a drain electrode (16) outputted from the both side of the data bus line (14) to be overlapped with a certain portion of the first and second gate electrodes (13a, 13b); and a pixel electrode (18) overlapped with a certain portion with the data bus line to be contacted with the first and second source electrodes (15a, 15b). Therefore, since the Shot Mura can to be basically prevented, the picture of the TFT LCD can to be increased.
Patent KR-20000008209-A (KR)
Title: Ultrasonic sensor apparatus having information processing function
Inventor: JANG YONG HAN
IPC: G01S7/52
Filed: 1998-07-10
Abstract: PURPOSE: An ultrasonic sensor apparatus having an information processing function is provided, which amplifies a signal received to a ultrasonic sensor at the third times and changes the amplified signal into a square wave, and then processes the square wave. CONSTITUTION: An ultrasonic sensor apparatus comprises: an ultrasonic sensor(10) for measuring a distance from an object; a multiple amplifier(20) for amplifying the measured value of the ultrasonic sensor(10); a band pass filter(30) for filtering the amplified frequency of the multiple amplifier(20); a pulse shaping unit(40) for converting the filtered signal into a digital signal; a thermistor(50) for sensing a temperature change of the ultrasonic sensor(10) and providing the sensed voltage to the microcomputer(80); a sensor power supply sensing unit(60) for sensing a power supply change of the ultrasonic sensor(10); a sensor power supply unit(70) for providing a 5V to each circuit; a microcomputer(80) for receiving a temperature/voltage change value of the ultrasonic sensor(10) and providing a compensating values to an ECU.
Patent KR-20000009565-A (KR)
Title: Glass transfer robot
Inventor: KIM BYUNG SEON
IPC: C03B35/00
Filed: 1998-07-21
Abstract: PURPOSE: An apparatus for transferring glass plate to the following process within an allowable limit range without swaying by sliding of a transferring board fixed to a transferring plate on which glass placed on a slider by a screw is provided which improves productivity and reduces the production cost. CONSTITUTION: A transferring board(3) slides along a pair of slider(2). A transferring plate(4) with several support(44)s is formed over the transferring board(3), a screw(5) with a pulley(8) is formed and connected to a motor(7) by a belt(6) beneath the transferring board(3). A screw(51) is connected to another motor(71) by a belt(61) under the support(1). The transferring board(3) connected to the screw(51) is reciprocating forward and backward by the screw(51). The apparatus is constructed to transfer the whole transferring board(3) on which glass placed on the slider(2) without transferring only the transferring plate(4) and then it is possible to transfer glass plate to the following process within an allowable limit range of plus minus 0.1 mm without swaying.
Patent KR-20000009950-A (KR)
Title: Heating dish for microwave oven
Inventor: KIM SUK TAE
IPC: F24C15/16
Filed: 1998-07-29
Abstract: PURPOSE: A heating dish for a microwave oven is provided to vary the absorption rate of heating energy to be suitable for the kinds of foods. CONSTITUTION: The heating dish(20) has a layer formed on the upper face and lower face of by materials having different energy absorption rate from each other, and the both sides of the dish are available. The heating dish is formed by:a reflective layer(24) having low energy absorption rate formed onto the one side by centering a body(22); an absorption layer(26) having high energy absorption rate formed onto the lower face. The reflective layer reflects most light energy which generated from a halogen lamp installed in a microwave oven and entered into a cavity. The absorption layer is able to increase the temperature of the heating dish itself by absorbing most light energy entered from the halogen lamp.
Patent KR-20000014266-A (KR)
Title: Three way passage connecting structure of air conditioner and production method thereof
Inventor: BAEK YONG KI
IPC: F24F11/00
Filed: 1998-08-19
Abstract: PURPOSE: A three way passage connecting structure and a production method thereof for an air conditioner is provided to have a uniform thickness of the raw material and a reduced number of work for processing by making the connection structure with one stroke of forming process. CONSTITUTION: A three way connecting end(1) is made with a stuff made of a raw material of aluminium or copper. In the connecting end(1) a passage division is made to form three way passages(2). To each passage(2) of the connecting port(1) a passage pipe or a tube(3) connected to an evaporator, a condenser or a compressor respectively are welded for connection. In this way the connecting structure is made with one forming process and the thickness of the raw material is made uniform and the connection is made sure by effecting a welding to the pipe line. As a result the number of work for processing is reduced, saving the production cost.
Patent KR-20000015419-A (KR)
Title: Cmp apparatus
Inventor: KIM CHANAG KYU
IPC: H01L21/312
Filed: 1998-08-29
Abstract: PURPOSE: The chemical mechanical polishing(CMP) apparatus comprises a polishing line(30) arranged to construct a plurality of lines around a region to polish, to improve the uniformity and the planarization of a processed surface to be polished. CONSTITUTION: The apparatus improves the reliability of a semiconductor device by improving the repetition of CMP process by prolong the replacement period of the polishing line and reduces the fabrication cost of the semiconductor device. The CMP apparatus comprises: a wafer holder(20) being rotated along a fixed direction in the state of wafer installation; the polishing line installed by being adhered to the wafer; a plurality of rollers(41, 42) driving the polishing line; and a plurality of guide rollers(43, 44) guiding so that a tension is applied to rollers.
Patent KR-20000020744-A (KR)
Title: Focusing method and focusing system of exposing device
Inventor: CHOE HYO SEON
IPC: G03F7/20
Filed: 1998-09-23
Abstract: PURPOSE: A focusing method and system of exposing device is provided to prevent the patterning failure due to defocus, particularly to prevent the defocus generated in forming the pattern of micro width. CONSTITUTION: A focusing method of exposing device having an exposing slit(20) and plural focus sensors(32a,32b,34a,34b) arranged on both sides of the slit comprises a step of selecting any focus sensor of plural focus sensors, and a step of controlling focus using the selected focus sensors. The focusing method further comprises a step of averaging the focuses by the selected sensors to control the focus of the exposing device, and a step of selecting the focus sensors used in order to be correspondent to the chip size on a wafer.
Patent KR-20000021004-A (KR)
Title: Dielectric filter
Inventor: HWANG GYU HAN
IPC: H01P1/205
Filed: 1998-09-25
Abstract: PURPOSE: A dielectric is provided to improve a harmonic character by molding a resonance groove in a conic shape. CONSTITUTION: A dielectric filter comprises: a conductor coating plated on the surface of a dielectric body, separating electric polarization by an electric field; a first resonator for composing a first upper part resonance groove pierced beyond the center from the upper part of the dielectric body, and a first bottom part resonance groove pierced beyond the center from the bottom part of the dielectric body, and for having a first adjuster of coupling capacity in the middle; a second resonator for composing a second upper resonance groove pierced beyond the center from the upper part of the dielectric body, by being separated horizontally from the first resonator, and a second bottom part resonance groove pierced beyond the center from the bottom part of the dielectric body, and for having a second adjuster of coupling capacity. The first upper part resonance groove and the second upper part resonance groove are molded in conic shapes, which diameters are diminishing to the center from the upper part of the dielectric body. The first bottom part resonance groove and the second resonance groove are molded in conic shapes, which diameters are diminishing to the center from the upper part of the dielectric body.
Patent KR-19980087881-A (KR)
Title: 필기시 손가락 보호대
Filed: 1998-09-28
Abstract: 본 발명은 볼펜이나 기타필기구로 필기시에 필기구가 닿는 손가락부위에 둥글게 휘어 반지처럼 끼우거나 부분적으로 감싸는 것으로 금속류 기타 휨작용(1)이 자유로운 고체를 안에 넣고 겉표면을 가죽 섬유 기타 부드러운 재료(2)로 감싼 구조로 되어 있으며, 금속류 기타 휨(1)작용이 자유로운 고체로 필기구가 닿는 손가락 부위에 끼우고 필기를 하면 필기구가 금속류 및 기타 고체(1)를 누르게 되고 필기구에 눌리는 손가락 바로 밑에 손가락이 금속류 기타 고체(1)를 받쳐주는 역할을 함으로써 눌리는 손가락 부위와 금속류 기타 고체(1)사이에 일정한 간격(GAP)이 생겨서 필기구가 손가락에 닿지 않도록 하였으며 휨작용이 자유로와 알맞은 굵기로 조절할 수 있고 금속류 기타 휨작용이 자유로운 고체(1)의 겉표면을 가죽, 섬유류 기타 부드러운 재료(2)로 감아싸므로써 부드러운 촉감과 반지처럼 끼워 쓸 수 있어서 외적인 미려를 향상시킬 수 있다.
Patent KR-20000021714-A (KR)
Title: Tab package soldering machine
Inventor: JEONG CHANG WOOK
IPC: H05K3/34
Filed: 1998-09-30
Abstract: PURPOSE: A tab package soldering machine is provided to mount a compressed face for mounting a terminal portion of a printed circuit board by using a work zig. CONSTITUTION: A tab package soldering machine comprises a base(32), a work zig(34), a landing zig(36), a compression tool(38), and a cartridge heater(40). The work zig is fixed on an upper face of the base has a compressed face(34a) on which a terminal portion of a printed circuit board(P) and a lead portion of a tab package are overlapped. The landing zig is mounted at an upper face and a rear side of the work zig comprises the remaining portions except for the terminal portion. The compression tool is installed on an upper side of the work zig compresses the lead portion of the tab package the terminal portion of the printed circuit board mounted on the compressed face of the work zig by heat. The cartridge heater generates heat to be transferred to the compressed face.
Patent KR-19990007597-A (KR)
Title: 영문해석 및 영작연습용 구문도해 시각화교재 작성방법
Filed: 1998-06-27
Abstract: 본 발명은 우리말과는 어순이 다른 영어 문장의 이해를 돕기 위하여 의미단락별로 끊어서 그 요소에 적합한 문장분석부호를 사용하고, 또 그 각 요소들을 시에서처럼 줄을 바꾸어 제시함으로써 시각적으로 주어와 동사를 잘 파악하면서 읽는 훈련을 하고 이를 통해 정독과 속독을 가능하게 하는 영어 교재 작성방법이다. 
     그 작성 과정을 살펴보면, 
     제 1 단계로 다음 문장 분석 부호를 2 개 이상 결합하여 사용한다.    접속사 앞, 전치사 앞, 부사구 앞, 절과 절 사이, 긴 목적어와 긴 보어 앞, 긴 주어 뒤, 문두 부사의 뒤에는 '/'표시를 하며, 관계사절(형용사절), 현재분사 구문, 과거분사 구문, 동격절, 형용사구 등의 문장내 수식어구는 '[ ]'표시를 하고, 문장 전체의 의미에 있어 부수적인 역할을하는 삽입어구나 문장중간의 부사(구)는 '( )'표시를 해서 문장의 주요소와 분리 시킨다.    한편, 문장의 뼈대를 구성하는 주요구문(structure : not A but B, It is ∼ that, so ∼ that, the 비교급, the 비교급 등)에는 ' ' 모양의 밑줄을, 주요동사관련 구문(rob A of B, provide A with B, punish A for B, attribute A to B 등) 과 숙어 ( at the mercy of, by way of, result in 등)에는 '       '모양의 밑줄을 표시해서 강조한다.    그리고 다수의 문장으로 이루어진 하나의 지문의 내용을 정리하여 보여주기 위해서, 주제문(topic sentence)에는 '＜ ＞'표시, 내용상의 주제어(key word)에는 ' ' 표시, 글의 흐름을 알 수 있는 연결사 (For example, However, In addition 등)나 글의 전개 방식 단서 (Some∼, Others... ; First, Second, ... 등)에는 ' '표시를 해서 주의를 집중하게 한다. 
     제2단계로 줄 바꿔 쓰기는 모든 문장부호(, : ; - - 등)의 자리와, 지금까지 언급한 문장 분석 부호자리에서 줄을 바꿔 쓴다.    단, 문장의 내용상 서로 긴말하게 연결된 요소는 줄 바꾸기 대신에 한 줄 안에서 분석 부호를 쓸 수도 있다.    들여쓰기에 있어서는 주어와 동사는 첫째 칸부터, 나머지 요소는 모두 셋째 칸 내지 넷째 칸 부터 쓴다.    이렇게 함으로써 주어와 동사 부분만 돌출되어 의미파악이 더욱 쉽게 되는 장점이 있음.
Patent KR-20000025472-A (KR)
Title: Carrier die of ion implanter
Inventor: MUN JUNG HO
IPC: H01L21/265
Filed: 1998-10-12
Abstract: PURPOSE: A carrier die of ion implanter is used to a loading/unloading of wafer in ion implantation device, and prevents a wafer broken. CONSTITUTION: A carrier die of ion implantation device includes a loading part(102), and unloading part(104). The wafer is lied down on the loading/unloading parts. The loading part(102) has a circular form which is constructed to prevent a wafer broken when loading the wafer. The unloading part(104) has a circular form which is constructed to prevent a wafer broken when loading the wafer. Although the wafer is moved down by vibration, the carrier die structure of the moving down direction is made as a wafer form, so that the wafer is not caught by the carrier die(100),
Patent KR-20000026304-A (KR)
Title: Solid electrolyte capacitor composed of metal alkoxide and conductive polymer
Inventor: CHO SANG PHIL
IPC: H01G9/02
Filed: 1998-10-20
Abstract: PURPOSE: A solid electrolyte capacitor composed of metal alkoxide and conductive polymer is provided to present a capacitor of a compact and high capacity chip type and have a low equivalent series resistance. CONSTITUTION: A solid electrolyte capacitor composed of metal alkoxide and conductive polymer comprises various metal foil, various high conductive dielectric prepared by a sol-gel method, and conductive polymer. The dielectric consists of various metal alkoxide. The polymer is applied on the dielectric. Further, carbon and silver paste is applied on the polymer. The metal foil comprises Al, Cu, Ti, Sn, Sus. Therefore, the capacitor is a compact and high capacitive chip type capacitor.
Patent KR-19990037261-A (KR)
Title: 금속와이어의 측방편향을 관리할 수 있는 리드프레임, 이리드프레임을 갖는 반도체장치, 및 그측방편향 관리방법
IPC: H01L21/60
Filed: 1998-10-21
Abstract: 반도체 장치에서, 버스 바아 (4a) 에 돌기 (4a, projection) 가 제공된다.     이 돌기와  수지공급시에 측방으로 편향되는 금속 와이어 (13a) 사이의 위치 관계에 기초하여,  금속 와이어의 측방 편향량이 관리된다.     이 돌기는 현수핀 또는 리드 프레임의 다른 부분상에 제공될 수도 있다.     이 돌기의 대신에  컷아웃이  제공될 수도 있다.
Patent KR-19990044933-A (KR)
Title: 광 헤드 및 광 디스크 장치_
IPC: G11B7/122
Filed: 1998-10-31
Abstract: 본 발명은 소형이고,  고기록밀도를 가능하게 하며,  데이터 전송 속도의 향상을 도모한 광 헤드 및 광 디스크 장치를 제공한다. 
     반도체 레이저(2)로부터 레이저 빔(3)을 출사하면,  그 레이저 빔(3)은 시준 렌즈(4)에 의해 평행 빔(5)으로 정형되고,  투명 집광용 매체(6)의 제 1 면(6a)에 입사한다.  제 1 면(6a)에 입사한 레이저 빔(5)은 제 2 면(6b)의 외측에 형성된 반사체(7)에서 반사하여 제 3 면(6c) 상에 집속하여 제 3 면(6c) 상에 광 스팟(9)을 형성한다.  광 스팟(9)에 집속한 광이 근접장 광으로서 누출하여 기록 매체(8)에 전달되어 광 기록 또는 광재생이 행해진다.
Patent KR-20000033849-A (KR)
Title: Apparatus for drying using dielectric heating
Inventor: SEONG HA JING
IPC: F26B3/34
Filed: 1998-11-26
Abstract: PURPOSE: A drying apparatus using dielectric heating is provided to quickly and simply dry sludge of wastes as well as of general textile and glass wool. CONSTITUTION: AC power for driving an oscillation circuit is output from a power supply control part(200). The AC power is fed to a rectifying part(300) and is then converted to DC voltage. The DC voltage output from the rectifying part is fed to a plate of a vacuum tube(VT) which is an oscillation element. The power for emitting thermal electrons output from a transformer(250) for the filament power of the power supply control part is fed to a filament(F) of the vacuum tube. The vacuum tube outputs voltage having resonance frequency of tank circuits resonating to the frequency defined by the capacitance and the inductance. High frequency signals are induced to a secondary coil and fed to a first and a second anode electrodes of an oven assembly. Between the cathode electrodes grounded to the first and the second anode electrodes, an AC field by the high frequency is formed. The object to be dried is uniformly heated by the radiation by the loss of dielectric. Herein, the frequency used for forming a high frequency electric field is over 1-180MHz, and the maximum output is restrained within 200Kw.
Patent KR-20000039277-A (KR)
Title: Method for the preparation of halohydroxypropyltrialkyl ammonium halide
Inventor: GO CHANG HOEN
IPC: C07C209/12
Filed: 1998-12-10
Abstract: PURPOSE: A halohydroxypropyltrialkylammonium chloride improved a stability and an economy, is proved which minimized being a left material and producing a contaminant. CONSTITUTION: A method for the preparation of halohydroxypropyltrialkylammonium chloride comprises: inputting a part of an epihalohydrin in the trialkylammonium hydrohalide to activate the reaction coming to the highest pH; inputting the rest of the epihalohydrin in the trialkylammonium hydrohalide not to occur over exothermic reaction under the reaction, so suppress producing a contaminant, improve a color and be easy control of the process. The amount of the epihalohydrin inputted at first, is 10-20% of a molar ratio , after that the rest of epihalohydrin input over from 10 minutes to 3 hours.
Patent KR-20000041355-A (KR)
Title: Method for improving screen white of color cathode ray tube
Inventor: LEE HEE CHUL
IPC: H01J31/10
Filed: 1998-12-22
Abstract: PURPOSE: A method is provided to improve screen white of a color cathode ray tube. CONSTITUTION: A screen white of a color cathode ray tube is improved by varying R, G, B pixel in a face panel, by measuring the stabilized amount at a 2/3 point of a shadow mask and at a point of 30 mm, and also measuring the forward doming amount and the reverse doming amount at a 2/3 point of the shadow mask, and then calculating a pre-compensation design amount, and by reflecting the calculated pre-compensation design amount to the curvature of an exposing lens.