baber/WOPTO huggingface dataset:
Patent KR-20000021881-A (KR)
Title: Polymer film
Inventor: KIM MUN SEON
IPC: C08J5/18
Filed: 1998-09-30
Abstract: PURPOSE: A polymer film is provided which has a paper like property and improved printing property. CONSTITUTION: 1- 20 weight % of polypropylene resin having 1- 10 of melt flow index and 120- 170°C of melting point, 0.5-5 weight % of polyethylene resin, 1- 20 weight % of maleic anhydride and 3-10 weight % of methacrylate compound(formula 2; R is glydidyl, laurolactam, kappa lactam or oxazoline) are added in polyester resin having 0.4-0.8dl/g of intrinsic viscosity to give a substrate resin film. 0.01- 0.1 g/square meter thickness of acrylic resin such as methyl acrylate, ethyl acrylate, N-butyl acrylate, 2-ethyl hexyl acrylate and their derivatives having 10,000-300,000 of average molecular weight, is coated on one or both sides of the substrate resin film to give the title polymer film.
Patent KR-20000027662-A (KR)
Title: Process for preparing oxazolidinone derivatives and antibacterial agent containing them
Inventor: SONG SEOK BEOM
IPC: A61K31/42
Filed: 1998-10-26
Abstract: PURPOSE: An Oxazolidinone derivatives is prepared by introducing thioamide derivative into a phenyl substituent which has a strong antibacterial activity. CONSTITUTION: A Piperazinyl phenyl oxazolidinone derivative and its salt or hydrate are prepared, wherein formula 1, R1 is H, C1-C6 alkyl or C3-C6 cycloalkyl; R2 is independently H, F, Cl or method; X is O, S, sulfonyl or N-(CH2)n-R3; n is 0-6; R3 is H, OH, C1-C6 alkyl, C1-C6 acyl) Thus, 10 g of (S)-N-£££3-fluoro-4-(4-t-butyloxycarbonyl-1-piperazinyl)phenyl-2-oxo-5oxazolidinyl|meth yl thioacetamide is suspended in 100 ml of dichloromethane, and added 20 ml of trifluoromethane sulfuric acid. Obtained solution is stirred at 25°C for 2 hours, followed by addition of 50 ml water for 10 minutes, adjusted to 7.5- 8.0 pH to give (S)-N-£££3-fluoro-4-(1-piperazinyl)phenyl|-oxo-5-oxazolidinyl|methyl|thioacetamide.
Patent KR-20000027878-A (KR)
Title: Semiconductor device and method thereof
Inventor: KANG DAE GWAN
IPC: H01L29/78
Filed: 1998-10-29
Abstract: PURPOSE: A method of manufacturing a semiconductor device is provided to improve performance and reduce power consumption of the device by improving current driving characteristics. CONSTITUTION: A method of manufacturing a semiconductor device composed of a plurality of transistors connected in series on a semiconductor substrate(21) comprises the steps of: forming a punch-through blocking layer(25) having a predetermined width on the semiconductor substrate; forming first and second gate electrodes(27a, 27b) having a predetermined interval between them by inserting a gate insulating layer(26) on the substrate so that a gate electrode is positioned on the punch-through blocking layer; forming a first, second, and third lightly doped drain(LDD) regions(29a, 29b, 29c) in the surface region of the substrate on both sides of the first and second gate electrodes; forming a halogen region(31) in a deeper region than the first and second LDD regions in the surface region of the semiconductor substrate; and forming a first, second and third high density impurity regions in the surface of the semiconductor substrate on both sides of the first and second gate electrodes.
Patent KR-19990044970-A (KR)
Title: 이온교환막
IPC: C08L27/18
Filed: 1998-11-03
Abstract: 본 발명은 이온교환기로 치환된 방향족 성분과 그래프트된 내부 강화 고분자 필름 (integrally reinforced polymeric film)을 포함하는 이온교환막에 관한 것이다. 이온교환기는 음이온교환기 또는 양이온교환기일 수 있다. 본 발명은 또한 내부 강화 고분자 필름을 적어도 하나의 방향족 고리로 치환된 방향족 모노머와 접촉시켜 방향족 모노머가 내부 강화 고분자 필름에 그래프트 결합되도록 하는 조건하에 상기 내부 강화 고분자 필름을 반응시키는 것을 특징으로 하는 이온교환막의 제조방법에 관한 것이다. 이어서, 이온교환기를 방향족 고리에 도입하여 이온교환막을 제공한다. 필요에 따라서는, 방향족 모노머는 이온교환기 또는 그의 유도체로 치환된 방향족 고리를 가지고 있을 수도 있기 때문에 이온교환기를 그래프트된 결과물에 도입하는 단계를 생략할 수도 있다. 또한, 본 발명은 유체를 본 발명에 따른 이온교환막과 접촉시키는 것을 포함하는 유체처리방법에 관한 것이다. 또한, 본 발명은 본 발명에 따른 이온교환막을 포함하는 장치에 관한 것이다.
Patent KR-19990045008-A (KR)
Title: 소수성 단위로 이루어진 양이온성 분산제를 함유한 수용성고분자 기제의 안정한 수성 분산액
IPC: C08F2/28
Filed: 1998-11-04
Abstract: 수용성 고분자 기제의 수중수형 분산액은 소수성 단위 함유 고분자 분산제를 사용하여 제조될 수 있다. 
     본 발명의 분산액은 저장상 안정하고 점도가 낮다.
Patent KR-19990014419-A (KR)
Title: 농업용 지하수 여과기
Filed: 1998-11-06
Abstract: 본 발명은 농업용 지하수 여과기에 관한 것이다. 
     내측에는 통형의 걸름망(11)이 나사결합되고 외측에는 용수배출구(12) 및 용수유입구(13)를 갖는 상부통체(10)와 저부에 불순물 배출구(21)를 갖는 하부통체(20)가 상호 결착구로 결합된 통상의 여과기에 있어서, 용수유입구(13)는 상부통체(13)의 중심에서 벗어난 편심위치에 구성하고 상부통체(10)의 상단 일측에는 안전밸브(V 1 )를 구성하는 한편, 하부통체(20)의 불순물 배출구(21)에는 자동압력밸브(V 2 )를 결합하여 된 구조, 그리고 돔형태의 걸름망(110)을 구비하여 하부통체(20)의 상부에 구성하는 구조도 취할 수 있다. 
     본 발명은 유입되는 용수가 포함하고 있는 불순물을 걸름망과 직접 충돌되지 않게 함으로써 걸름망의 장기간 사용은 물론 청소의 번거로움을 억제하고 특히, 걸름망이 쉽게 막히지 않음으로써 일정한 수압과 수량을 농업용  기에 지속적으로 공급할 수 있다.
Patent KR-20000033190-A (KR)
Title: Cooling system of refrigerator and controlling method thereof
Inventor: PARK JIN GU
IPC: F25D29/00
Filed: 1998-11-20
Abstract: PURPOSE: A cooling system of a refrigerator is provided to control the operation of a compressor, a refrigerating fan and a freezing fan according to the inner temperature of the refrigerating chamber and of the freezing chamber and the evaporating temperature of a refrigerating evaporator and of a freezing evaporator sensed by respective temperature sensors. CONSTITUTION: A controlling method of a cooling system comprising: operating a compressor and a freezing fan if the temperature in a freezing chamber is out of allowable range of temperature and operating a refrigerating fan if the temperature in a refrigerating chamber is out of allowable range of temperature; controlling the rotational frequency of the refrigerating fan according to the evaporating temperature of a refrigerating evaporator and controlling the rotational frequency of a freezing fan according to the evaporating temperature of a freezing evaporator; stopping the refrigerating fan if the inner temperature of the refrigerating chamber is lower than the allowable range of temperature and returning to the second step after operating the refrigerating fan if the inner temperature of the refrigerating chamber is over the allowable range of temperature; and stopping the compressor and the freezing fan if the inner temperature of the refrigerating chamber is lower than the allowable range of temperature after sensing the inner temperature of the freezing chamber.
Patent KR-20000033512-A (KR)
Title: Cathode ray tube
Inventor: LEE BONG WOO
IPC: H01J29/88
Filed: 1998-11-24
Abstract: PURPOSE: A cathode ray tube is provided to optimize the thickness of an inner graphite membrane in a cathode ray tube with a rectangular cone. CONSTITUTION: A cathode ray tube includes a panel(4), an electron gun(20), a funnel(8) with a cone(8a), and anode button(16), and an inner graphite membrane(18). The panel forms a fluorescent screen(2) inside. The electron gun(20) is implemented around the inner circle of a neck(6), and injects a three-way electron beam. The funnel(8) has a cone(8a) coupling the panel and the neck. The anode button(16) is implemented on the funnel and implies high voltage. The graphite(18) is applied over the inner surface of the funnel and transfers the high voltage applied by the anode button. The thickness of inner graphite membrane(Td) applied on the diagonal of the cone and the thickness of inner graphite membrane(Tv) applied on the vertical of the cone satisfy the following equation. 0.9≤Td/Tv≤1.36.
Patent KR-20000037837-A (KR)
Title: Sorting method of output papers of printer
Inventor: WOO HONG ROK
IPC: B41J2/00
Filed: 1998-12-02
Abstract: PURPOSE: A sorting method of the output papers of a printer is provided to conveniently sort the printed documents by outputting a document information page representing information such as file name, user name, printing time, etc., on a printed data before printing the printing data. CONSTITUTION: A sorting method of the output papers of a printer includes the steps of converting a printing data composed in a computer appliance program and document information on the printing data into a language readably in a printer by a printer driver and transmitting the converted printing data and document information to the printer, storing the transferred printing data and document information in a printer memory(s204), detecting the transferred document information from the memory to print(s205), and outputting the document information between documents printed with the printing data(s211).
Patent KR-20000037940-A (KR)
Title: Telephone service splitting apparatus and method for asymmetric digital subscriber line
Inventor: OH CHAE HYONG
IPC: H04L12/00
Filed: 1998-12-03
Abstract: PURPOSE: A telephone service splitting apparatus and method for an asymmetric digital subscriber line(ADSL) are provided to separate a voice signal from the ADSL and send only the separated voice signal to a telephone set, by switching the voice signal passed through a low pass filter to a spare line in a house, in order to receive and transmit the voice signal using a converter type telephone consent. CONSTITUTION: A port(1) is connected to an external ADSL modem. A code(4) has an input terminal(5) and output terminal(6). An ADSL signal with a voice signal is inputted into a house of a subscriber via the input terminal(5). A low pass filter(2) filters a voice signal having a frequency not more than 4KHz from the ADSL signal with a voice signal. The voice signal from the low pass filter(2) is transmitted to a spare line in the house via the output terminal(6). A telephone consent(3) is configured to accept the voice signal on the spare line at a plug terminal(8) and socket terminal(9) without a need for modifying a code of a common telephone set.
Patent KR-20000038423-A (KR)
Title: Process for recovery of organic acid
Inventor: MOON SEUNG HYUN
IPC: B01D61/00
Filed: 1998-12-07
Abstract: PURPOSE: A process for recovery of organic acid is provided to simplify the working process and overcome the inefficiency of related conventional processes so that the investments and costs needed to operation and retainment of the process can be saved. CONSTITUTION: A process for recovery of fermented liquids of organic acid is characterized in that the process comprises the steps: a) removing impurities of the fermented liquids by membrane means for precision filtration and recycling microorganisms into the fermentation tank; b) introducing the fermented liquids obtained the step a) into a water-splitting electrodialyzer to recover the organic acids; and c) adding the minimum amount of nutrients to waste fermented liquids remained as a waste after the water-splitting electrodialysis step and then recycling the liquids to the fermentation step as a reclaimed medium.
Patent KR-19990063041-A (KR)
Title: 하나 이상의 위성 스테이션 및 연결 스테이션을 포함하는 전송시스템, 음성 메시지 정정 장치를 포함하는 스테이션 및 음성 메시지의 품질을 개선하는 방법
IPC: H03G3/00
Filed: 1998-12-14
Abstract: 본 발명은 하나 이상의 위성 스테이션 및 연결 스테이션을 포함하는 전송 시스템, 음성 메시지 정정 장치를 포함하는 스테이션 및 음성 메시지의 품질을 개선하는 방법에 관한 것이다. 
     음성 신호가 프레임으로 전송되는 본 시스템은 복수의 위성 스테이션(M1, M2, ...) 및 교환국(switch:SW)을 경유하여 전화 선을 지나서 데이터 교환을 허용하기 위한 연결 스테이션(B1)에 의해 형성된다. 불량한 전송의 원하지 않는 영향을 교정하기 위해서, 신호 프레임이 불량한 프레임으로 판명될 때 음성 신호를 약화시키기 위해 제안된다. 
     본 발명은  GSM 및 DCS 네트워크에 응용된다.
Patent KR-20000040570-A (KR)
Title: Apparatus and method for removing car noise using microphone having two channel
Inventor: KWON OH IL
IPC: H03H7/075
Filed: 1998-12-18
Abstract: PURPOSE: An apparatus and a method for removing a car noise using microphone having two channel are provided to reduce the sound pressure of the noise using an inverted phase algorithm and then remove the noise using a noise band remove method. CONSTITUTION: An apparatus for removing a car noise using microphone having two channel comprises two microphones(30,40), a low pass filter(32), an A/D converter(34), a micom(50), a D/A converter(36), a low pass filter(38), an amplifier(39), an A/D converter(44), and a voice recognizer(60). The filter(32) pass only low frequency component contained in voice signals output through the microphone(30). The micom(50) executes an inverted phase algorithm for removing noise signal using signals having opposite phase and amplitude to those of the noise signals contained in the voice signals.
Patent KR-20000042986-A (KR)
Title: Apparatus and method for auto degaussing in cathode ray tube display
Inventor: KIM TAE HWAN
IPC: H01J29/87
Filed: 1998-12-28
Abstract: PURPOSE: An apparatus and a method for auto-degaussing in a cathode ray tube display are provided which can prevent the decoloration phenomenon due to the tilt of dot pitch. CONSTITUTION: An apparatus and method for auto-degaussing prevent the inharmony of color image due to the decoloration phenomenon by a magnetic field variation, by performing the degaussing function automatically if a difference value between a reference angle of a cathode ray tube body(10) and a variable rotation angle exceeds a permissible value. The angle of the cathode ray tube body is set as the reference angle of the cathode ray tube body when the power of the cathode ray tube display is turned on, and the variable rotation angle is varied by the user input. By the method, the decoloration is prevented due to the tilt of dot pitch when a user tries to change angle through a remote controller or manually.
Patent KR-20030076728-A (KR)
Inventor: SHIN SEUNG U
IPC: H01L21/316
Filed: 1998-12-30
Abstract: 반도체 장치의 크라운형 커패시터 제조 방법에 관한 것으로, 본 발명은 셀영역과 주변회로영역으로 한정되는 층간절연막 상에 다수의 비트라인을 형성하는 단계; 상기 셀영역에 있는 비트라인 사이의 골을 채우는 비트라인 골 매립산화막을 형성하는 단계: 상기 결과물 전면에 식각방지막 및 커패시터 산화막을 순차적으로 형성하는 단계; 상기 셀영역에 있는 비트라인 사이의 층간절연막을 노출시키는 비아홀을 형성하는 단계; 상기 비아홀이 형성된 결과물 상에 하부전극용 실리콘막 및 상기 비아홀을 채우는 하부전극 매립산화막을 순차적으로 형성하는 단계; 상기 커패시터 산화막이 노출되도록 상기 하부전극 매립산화막 및 하부전극용 실리콘막을 이방성 식각하여 하부전극을 형성하는 단계; 및 상기 커패시터 산화막과 하부전극 매립산화막을 제거하는 단계를 포함하여 이루어져 하부전극 매립산화막 및 커패시터 산화막의 제거시에 식각방지막이 층간절연막을 충분히 보호하기 때문에 층간절연막의 손실영역이 발생하지 않아 층간절연막의 유동에 따른 비트라인의 이동이나 비트라인 자체가 무너지는 현상을 방지할 수 있다는 이점이 있다.
Patent KR-19990063595-A (KR)
Title: 통신 시스템들 간의 효율적인 로우밍 방법 및 장치
IPC: H04W84/02
Filed: 1996-07-15
Abstract: 제1 지역에서 통상적인 방법으로, 메시지를 호출기에 전송하기 위한 홈 터미널(125)을 갖는 제1 서브시스템(105)과 호출기(140)가 제2 지역에서 로우밍해 들어 왔을 때 호출기(140)로 메시지를 전송하기 위한 로컬 터미널(135)을 갖는 제2 서브시스템(115)을 포함하는 것을 특징으로 하는, 호출기(140)에 메시지를 공급하기 위한 통신 시스템(100). 
     제2 서브시스템(115)의 로컬 터미널(135)은, 호출기(140)에 전송될 메시지를 수신하기 위한 데이터 포트(505), 호출기(140)가 로우밍해 들어 왔다는 것을 판단하기 위한 제어기(510) 그리고 호출기(140)가 로우밍 하는지에대한 판단의 응답하여 제1 서브시스템(105)으로부터 호출기(140)에 관련된 가입자 기록 사항에 대한 요구를 자동적으로 전송하기 위한 요구기(580)를 포함한다.
Patent KR-19990063753-A (KR)
IPC: H01L21/302
Filed: 1997-07-21
Abstract: A composition for chemical mechanical polishing includes a slurry. A sufficient amount of a selectively oxidizing and reducing compound is provided in the composition to produce a differential removal of a metal and a dielectric material. A pH adjusting compound adjusts the pH of the composition to provide a pH that makes the selectively oxidizing and reducing compound provide the differential removal of the metal and the dielectric material. A composition for chemical mechanical polishing is improved by including an effective amount for chemical mechanical polishing of a hydroxylamine compound, ammonium persulfate, a compound which is an indirect source of hydrogen peroxide, a peracetic acid or periodic acid. A method for chemical mechanical polishing comprises applying a slurry to a metal and dielectric material surface to produce mechanical removal of the metal and the dielectric material. A selectively oxidizing and reducing compound is applied to produce a differential removal of the metal and the dielectric material. The pH of the slurry and the selectively oxidizing and reducing compound is adjusted to provide the differential removal of the metal and the dielectric material. A method for chemical mechanical polishing comprises applying a slurry to a metal and dielectric material surface to produce mechanical removal of the metal and the dielectric material, and an effective amount for chemical mechanical polishing of a hydroxylamine compound, ammonium persulfate, a compound which is an indirect source of hydrogen peroxide, a peracetic acid or periodic acid.
Patent KR-20000064604-A (KR)
Title: 액정 배향막용 조성물, 액정 배향막, 액정디스플레이및 액정 디스플레이 소자
IPC: G02F1/1337
Filed: 1997-12-24
Abstract: 폴리이미드를 구성하는 디아미노 화합물이 4,4'-디아미노디페닐 메탄, 3,3'-디메틸-4,4'-디아미노디페닐 메탄, 2,2'-디메틸-4,4'-디아미노디페닐 메탄, 3,3'5,5'-테트라메틸-4,4'-디아미노디페닐 메탄 및 4,4'-에틸렌 디-메타-톨루이딘으로부터 선택된 하나, 둘 또는 그 이상의 디아민을 함유함을 특징으로 하는 폴리이미드계 액정 배향막용 조성물.
Patent KR-20000005154-A (KR)
Title: Effect coatings with colour impression depending on viewing angle
Inventor: DIETZ ERWIN
IPC: C09K19/00
Filed: 1997-03-19
Abstract: PURPOSE: An effect coatings with color impression depending on viewing angle are called the cholesteric effect coatings which have the light color impression. The effect coatings are provided for a color effect depending on the viewing angle from one or more no setting cholesteric liquid crystalline polymer. CONSTITUTION: A process for producing an effect coating with a color impression depending on the viewing angle in which one or more no setting cholesteric liquid crystalline polymer(s) or at least one non setting nematic and at least one non setting cholesteric liquid crystalline polymer is/are applied in the form of a melt of in solution to the object to be coated and converted by heat treatment into a film with a color effect depending on the viewing angle. The effect coatings consist of cholesteric liquid crystalline polymer. The accurate reflect color is differed by viewing angle, especially a spiral pitch.
Patent KR-20000011148-A (KR)
Title: Low heat expansion aaloy
Inventor: TAIMATSU HITOSHI
IPC: H01M8/02
Filed: 1998-03-17
Abstract: PURPOSE: To provide a low thermal expansion alloy having excellent oxidation resistance and electric conductivity, and having a thermal expansion coefficient approximate to that of stabilized zirconia. CONSTITUTION: To obtain this alloy, Co is added to the Cr-W-Fe alloy having high thermal expansion matching with stabilized zirconia so as to improve mechanical strength at high temperature without spoiling thermal expansion coefficient matching, oxidation resistance and electric conductivity, or optimizes the Cr and AL amount so as to improve the oxidation resistance, brings the thermal expansion coefficient near the surface closer to that of stabilized zirconia, contains at least one of Ti, Zr, and Hf is contained, so as to enable hot working to be done. Co, AL and (Ti, Zr, Hf) are added either selectively or in combination and furthermore, B is added so as to prevent segregation of W to the grain boundary. Also, M(M=at least one of Y, Hf, Ce, La, Nd, Dy) is added to the Cr-W-Fe alloy so as to improve the oxidation resistance.
Patent KR-20000016210-A (KR)
Title: Read amplifier for semiconductor memory cells with means to compensate threshold voltage differences in read amplifier transistors
Inventor: KOPLEY THOMAS
IPC: G11C11/4091
Filed: 1997-05-21
Abstract: PURPOSE: Disclosed is a read amplifier in which a mismatch of the cut-off voltages is compensated by cross-coupled transistors of the read amplifier by four other transistors. CONSTITUTION: Defined equalization of the bit lines is achieved advantageously using a plurality of other transistors (M1.. M4) at the same time in the "equalize phase e". Compensation is achieved in that bit line which is connected by cross-coupled transistors (M5, M6) to the lower cut-off voltage is loaded in the pre-loading phase at a higher level, and said higher bit-line level is switched to the gate of the transistor connected to the other bit line, and consequentially has higher conductivity in the movement phase of the transistor at the higher cut-off voltage. Said read amplifiers are particularly important for memory generations from 1 Gbit since the mismatch in this situation cannot in future be resolved in a reasonable manner by a correspondingly large gate surface of the cross-coupled transistors (M5, M6) in the read amplifier because of the variation in the input voltages of the transistors.
Patent KR-20000016223-A (KR)
Title: Process for producing deionized water by electrical deionization technique
Inventor: SHINMEI YASUTAKA
IPC: B01J47/08
Filed: 1996-06-03
Abstract: PURPOSE: A manufacturing method for a deionized water by using an electrical deionization technique is provided for the deionized water to be used in a manufacturing process of a semiconductor, in a pharmaceutic industry, and in a food industry. CONSTITUTION: A conventional process for producing deionized water by the electrical deionization technique using an electrical deionization apparatus provided with desalting chambers and concentration chambers arranged alternately is problematic in that the rate of removal of silica from nontreated water is low, though it is advantageous in that it can dispense with the regeneration of ion-exchange resins by using chemicals. In order to solve this problem, the process of the invention comprises supplying nontreated water and nonconcentrated water to, respectively, the desalting chambers and the concentration chambers in such a manner that the nontreated water supplied to the desalting chambers and the nonconcentrated water supplied to the concentration chambers flow counter currently and that the nontreated water supplied to the desalting chambers passes first an anion-exchanger layer and then other ion-exchanger layers. As a result, the migration of the anions to the concentration chambers is accelerated in the anion-exchanger layer, thus improving the rate of silica removal.
Patent KR-19990077568-A (KR)
Title: 액정표시장치
IPC: G02F1/133
Filed: 1999-03-03
Abstract: 액정표시장치는 복수의 영상신호선 중 대응하는 하나를 통하여 표시데이터에 대응하는 영상신호전압이 각각 공급되기에 적합한 복수의 화소를 가지는 액정표시소자와, 상기 복수의 영상신호선의 각각에 상기 영상신호전압을 공급하는 영상신호선 구동회로로 구비한다.  영상신호선 구동회로는, 각각 1쌍의 제 1입력단과 제 2입력단을 가지고, 이들의 입력단에 입력된 영산신호를 증폭하고, 영상신호선중에서 대응하는 단일의 영상신호선에 증폭된 영상신호를 공급하는 복수의 차동증폭기와, 각각의 차동증폭기의 각쌍에 대응하는 복수쌍의 반전입력단 및 비반전입력단을 구비한다.  차동증폭기는 각각 제 1상태와 제 2상태사이를 절환하는 전환회로를 가지고, 제 1상태는 제 1입력단이 반전입력단에 접속되고 제 2입력단이 비반전입력단에 접속되는 상태이며, 제 2상태는 제 1입력단이 비반전입력단에 접속되고 제 2입력단이 반전입력단에 접속되는 상태이다.  절환제어회로는 제 1상태와 제 2상태사이의 절환은 특정한 주기로 행해지도록, 절환회로에 절환제어신호를 공급한다.
Patent KR-19990046484-A (KR)
Title: 한외여과막을이용한공기압축기유분함유응축수처리장치
Filed: 1999-03-17
Abstract: (1) 발명이 속한 기술분야 
     ·환경관련 폐수처리 분야 중 유분함유폐수 처리분야 
     ·막분리 기술분야 중 한외여과막 분야 
     (2) 발명의 목적 
     본 발명은 공기압축기에서 발생하는 유분함유 응축수를 방류기준치가 만족될 수준으로 처리하되, 산업현장에서 부담없이 구입이 가능하고 운전이 간편하며 유지비가 저렴한 처리장치 개발에 그 목적이 있다. 
     (3) 발명의 구성 
     본 장치는 응축수 → 펌프 → 전처리 필타 (Pre-Filter) → 한외여과막 모듈(Ultrafiltration Module) → 여과액 방류의 공정으로 이루어지며 이 공정을 보조하는 요소들로서 외부 케이스, 하부오일팬, 압력계, 환풍기, 운전 스위치, 점검 덮개판, 배관장치 등이 있다. 
     펌프는 응축수를 흡입하여 전처리 필타 및 한외여과 모듈로 보내주는 역할을하고, 전처리 필타는 응축수에 섞인 고형분 (이물질)을 일자로 처리하며, 한외여과 모듈은 응축수에 남은 고형분과 유분 및 기타 물질을 제거하여 여과된 액을 방류하도록 구성되어 있다. 
     (4) 발명의 효과 
     ·저렴한 처리장치 개발 및 보급 
     ·응축수의 무단방류를 막고 수질환경 보호에 이바지 
     ·수입대체 상품으로서 외화지출을 막고, 해외시장을 개척
Patent KR-20000065544-A (KR)
Title: Mobile phone circuit equipped in car
Inventor: PARK YONG JUN
IPC: H04B1/034
Filed: 1999-04-06
Abstract: PURPOSE: A mobile phone circuit is provided to equip operation buttons, a movable earphone and microphone, and a telephone circuit in a car, so that a driver can freely move hands and eyes to prevent traffic accident caused by mobile phone usage. CONSTITUTION: If a call connecting button is pressed, an earphone attached with a microphone moves to a downward direction. If a call completing button is pressed, the earphone moves to an upward direction. The earphone is equipped in a ceiling of a car. The microphone is capable of being located around a driver's mouth. The earphone is capable of being located around the driver's ear. If the driver completes a call, the earphone moves to the upward direction.
Patent KR-20000066776-A (KR)
Title: 라벨 또는 그 라벨을 부착한 병 및 그의 재생방법
Filed: 1999-04-21
Abstract: 잉크층을 용이하게 제거할 수 있는 라벨, 그 라벨이 부착된 병, 라벨상의 잉크층을 제거하는 방법, 상기 라벨을 부착한 병으로부터 라벨상의 잉크층을 제거하는 방법, 잉크를 제거한 라벨을 분리하고, 병을 재생하는 방법 및 재생 펠릿을 제공하는 것을 목적으로 한다. 
     라벨은 비닐 방향족 탄화수소와 공액 디엔 화합물을 주체로하는 공중합체를 함유하는 열수축성 필름의 적어도 한면에 알카리성 온탕중에서 제거할 수 있는 잉크층을 갖는 것을 특징으로 하고, 병은 상기 라벨을 장착한 라벨을 장착한 것을 특징으로 하고, 잉크 제거방법은 상기 라벨을 알카리성 온탕중에서 침지시키고, 상기 방법에 의해 잉크층을 제거한 라벨을 분리하고 이 라벨이 부착되지 않은 병을 용융재생하는 것을 특징으로 하고, 재생 펠릿은 상기 기재된 방법에 의해 얻어진 것인 것을 특징으로 한다.