baber/WOPTO huggingface dataset:
Patent KR-19990029965-A (KR)
Title: 세탁기
IPC: D06F34/16
Filed: 1998-09-19
Abstract: 1. 청구범위에 기재된 발명이 속하는 기술분야 
     세탁기 
     2. 발명이 해결하려고 하는 기술적 과제 
     3상 유도전동기를 이용하는 세탁기에 있어서, DC 브러시레스 모터와 동등의 성능발휘를 가능하게 하는 인버터 구동을 행하고, 저비용으로 대량의 세탁물의 세탁을 가능하게 하는 세탁기를 제공하며, 또한, 속도센서를 이용하지 않고, 정밀하게 세탁물의 양을 추정할 수 있는 세탁기를 제공하는 것을 목적으로함. 
     3. 발명의 해결방법의 요지 
     세탁기는, 세탁과 탈수를 행하는 회전드럼와, 회전드럼에 부착된 회전날개를 회전시키는 3상 유도전동기와, 3상 유도전동기의 고정자에 공급하는 일차교류전류치와 일차교류전압치의 적어도 한쪽과 3상 유도전동기 고유의 정수로부터 회전각속도를 추정하는 각속도추정기를 갖는다. 3상 유도전동기의 회전속도 지령치와 상기 속도추정기의 출력치에 따라, 3상 유도전동기의 고정자에 공급하는 각 상의 일차교류전류의 토크전류성분과 여자전류성분을 서로 독립하여 지령한다. 따라서, 상기 각 상의 일차교류전류의 각각의 크기와 주파수를 변화시켜 상기 3상 유도전동기의 회전속도를 제어한다. 
     4. 발명의 중요한 용도 
     회전날개세탁기 및 드럼식세탁기의 유도전동기에 사용됨.
Patent KR-19990030160-A (KR)
Title: 통내분사식 엔진의 고압연료펌프체
IPC: F02M55/04
Filed: 1998-09-25
Abstract: 간단한 구성으로 연압의 맥동을 없이 할 수가 있고, 또 소형화할 수 있는 통내분사식 엔진의 고압연료펌프를 얻는 것을 목적으로 한다. 
     이런 목적을 달성하기 위해 흡입통로 및 토출통로가 형성된 케이싱(40), 케이싱(40)내에 배치된 미끄러저 움직이는 구멍(41a)을 갖는 실린더(41), 미끄러저 움직이는 구멍(41a)의 일부에 형성된 연료가압실(45) 및 미끄러저 움직이는 구멍(41a)내에 왕복이동가능하게 배치된 플런저(43)를 갖고있고, 플런저(43)의 왕복이동에 의해 연료를 흡입통로에서 연료가압실(45)에 흡입해서, 가압된 연료를 토출통로에서 토출해서 통내분사식 엔진의 연료분사기(1)에 압송하는 고압연료펌프(3)와, 고압연료펌프(3)와 일체로 설치되어, 고압연료펌프(3)가 저압연료통로에 발생시키는 압력의 맥등을 흡수하는 뎀퍼(30)와, 고압연료펌프(3)와 일체로 설치되어 고압연료펌프(3)가 토출하는 연료의 압력의 맥동을 흡수하는 어큐뮬레이터(70)를 구비하고 있다.
Patent KR-20000027929-A (KR)
Title: Method for manufacturing semiconductor devices
Inventor: CHIN SEUNG WOO
IPC: H01L21/28
Filed: 1998-10-29
Abstract: PURPOSE: A semiconductor fabrication method is provided to improve a contact resistance between a gate and a bit line by using an RTA(rapid thermal annealing). CONSTITUTION: A gate electrode having a polysilicon layer(20) and a tungsten silicide(25) is formed, and source and drain regions(50) are formed. Then, a first contact hole(70) connected to the gate electrode and a second contact hole(80) connected to the drain region(50) are formed. A bit line(100A) connected to the gate electrode via the first contact hole(70) and a word line(100B) connected to the drain through the second contact hole(80) are formed. For removing an oxide(55) formed at interface connected to the bit and word lines(111A,.100B), an RTA process is performed.
Patent KR-20000028450-A (KR)
Title: System for monitoring video and method the same
Inventor: JANG SE JIN
IPC: H04N7/18
Filed: 1998-10-31
Abstract: PURPOSE: A monitoring video system is provided to transfer a monitoring video which an event is occurred by adaptively espond to a circumstantial change. CONSTITUTION: A monitoring video system comprises a frame memory(104), a detecting block(102), a location information generating block(108), a difference signal generating block(110), and an interface block(114). The frame memory stores an arbitrary image frame taking a picture of the observation areas, as a base frame. The detecting block controls transmission when the base frame is generated, and detects event generation by change components in present frames, by comparing the base frame with pixel data with the present frames when the present frames of the observation images are supplied from the camera. The location information generating block decides movements regions in the present frames through comparative operations between the present frames and the base frame, and generates location information on the decided movements regions. The difference signal generating block generates a difference signal between the decided movements regions and movements regions of the base frame by the location information. The interface block transmits the base frame to the server, multiplexes the location information and the difference signal, and transmits the location information and the difference signal to the server as observation image data for the present frames.
Patent KR-20000033720-A (KR)
Title: Multi-domain liquid crystal display device
Inventor: LEE JAE YUN
IPC: G02F1/1343
Filed: 1998-11-25
Abstract: PURPOSE: A multi-domain liquid crystal display device is to provide a characteristic of wide view angle with multi-domain effect and a characteristic of high brightness by stable movement of liquid crystal particles upon application of voltage. CONSTITUTION: A multi-domain liquid crystal display device comprises: a first substrate(31)and a second substrate(33) arranged opposite to each other; a liquid crystal layer formed between the first and the second substrates; many gate interconnects and data interconnects formed on the first substrate in longitudinal and transverse directions to form pixel area; a pixel electrode formed in the pixel area; a dielectric structure(41) formed on the area except the pixel area to maintain constant space between the first substrate and the second substrate and to distort electric field applied to the dielectric layer; a common electrode formed on the second substrate; and an alignment film formed on at least one of the first and the second substrates.
Patent KR-20000039945-A (KR)
Title: Method for processing changed data using property determination
Inventor: BYUN SEONG WON
IPC: G06F9/00
Filed: 1998-12-16
Abstract: PURPOSE: A method for processing changed data using property determination is provided to process the changed data according to a property applied for correcting processing of each changed code, without correcting to a changed data process logic in such as a processor for changed telephone numbers. CONSTITUTION: A method for processing changed data by use of property determination contains processes. In a first process, a property translator reads a property determiner of each changed code from a property determining device, stores the read determiner in an inner memory space, reads changed data to be processed, and extracts a changed code from the changed data. In a second, the property translator searches a property to the extracted code from the property determiner, and processes the changed data based on the changed data.
Patent KR-20000040156-A (KR)
Title: Polymer mixing solution
Inventor: WON HWI JUN
IPC: G21F9/00
Filed: 1998-12-17
Abstract: PURPOSE: A polymer mixing solution is provided to fix the radioactive cesium to the soil and the sand by using an alcohol, a polymer decarboxy acid, and an alkali salt. CONSTITUTION: In a fixative which restrains the spreading of the radioactivity with respect to the contaminated soil and sand by a large scale nuclear accident, the fixative comprises an alcohol, a polymer decarboxy acid, and an alkali salt. According to the polymer mixing solution, the radioactive cesium to the soil and the sand is fixed by using an alcohol, a polymer decarboxy acid, and an alkali salt.
Patent KR-20000040784-A (KR)
Title: Substrate coupling unit for piezoelectric transformer
Inventor: KIM JONG SEON
IPC: H01L25/00
Filed: 1998-12-19
Abstract: PURPOSE: A substrate coupling unit for a piezoelectric transformer is provided to reduce a vibration damping of a piezoelectric body, to reduce a fabrication cost, and to improve productivity. CONSTITUTION: A piezoelectric transformer(1) includes a piezoelectric body(10) having input terminals(12a,12b) formed on both opposing sides thereof and output terminals(14) formed on the other sides. When the piezoelectric transformer(1) is disposed above and coupled to a substrate(30) having input and output terminals(32a,32b), a substrate coupling unit including supporting members(40) and coupling members(50) is used. The supporting members(40) use straight or bending rods to respectively connect with both the piezoelectric body(10) and the substrate(30) at points(P1,P2) by bonding materials(20a,20b), whereas the coupling members(50) use lead wires(50a) or bending rods. A longitudinally vibrating displacement is minimized at the points(P1,P2), and the input terminals(12a,12b,32a) are disposed at the point(P1). Therefore, a vibration damping of the piezoelectric body(10) is reduced.
Patent KR-20000042289-A (KR)
Title: Carrier recovery device for qam receiver and method for recovering carrier using the same
Inventor: SEONG GI DEOK
IPC: H04N7/12
Filed: 1998-12-24
Abstract: PURPOSE: A carrier recovery device for QAM receiver and a method for recovering a carrier using the same are provided to detect an accurate phase error value and obtain a carrier with a fast convergence speed. CONSTITUTION: A carrier recovery device for QAM receiver and a method for recovering a carrier using the same comprise a main decision portion(30), a sub-decision portion(31), a decided data selection portion(32), a phase error detection portion(33), a layer determination portion(38), a pass/maintenance portion(34), a loop filter(35), a carrier obtainment detection portion(37) and a voltage control oscillation portion(36). The main decision portion receives I, Q data through a channel and outputs decision data. The sub-decision portion outputs data existed on a first layer as decision data. The decided data selection portion output a decided data value. The phase error detection portion detects errors of the decided data. The layer determination portion determines whether the received I, Q data belongs to the first layer or not. The pass/maintenance portion penetrates a current phase error or maintains a previous phase error. The loop filter removes a noise of an output signal from the pass/maintenance portion and outputs a pure phase error. The carrier obtainment detection portion detects whether an output signal of the loop filter obtains a carrier and transfers a detection signal to the decided data selection portion. The voltage control oscillation portion recovers a carrier for modulating a transmission signal.
Patent KR-20000042631-A (KR)
Title: Structure of discharge passage of pump
Inventor: JUNG YONG GYU
IPC: F04C2/00
Filed: 1998-12-26
Abstract: PURPOSE: A structure of a discharge passage of a pump is provided to discharge some of fluid introduced in a casing through a suction hole through a space between a stator and a rotator, and the other fluid through a fluid passage of a driving shaft, thereby preventing introduction of fluid toward a clearance between the stator and the rotator. CONSTITUTION: In a structure of a discharge passage of a pump, a driving motor having a stator(2) and a rotator(3) is mounted in a casing(1) formed with a suction hole(1a) and a discharge hole, and rotors(5,6) for pumping by a pressure difference due to a change of volume of fluid by a driving shaft(40) integrated with the rotator of the driving motor, so that the fluid passing through between the stator and the rotator of the motor by the pumping of the rotor, wherein a fluid passage(41) is formed through in the driving shaft in an axial direction for discharging some of the fluid pumped by the rotor through the fluid passage.
Patent KR-20000043113-A (KR)
Title: Bush structure inserted into vehicle door hinge
Inventor: PARK JONG PIL
IPC: E05D3/02
Filed: 1998-12-28
Abstract: PURPOSE: A bush structure is provided to extend the life span of a bush and to prevent unpleasant noise while opening and shutting a door by installing a groove in one side of the bush and by covering an error with the groove. CONSTITUTION: A groove(24d) is formed on the inner circumference of a hollow body. The hollow body forms a hole(24a) in the middle part. The groove is extended in a vertical direction and the vertical face of the groove forms a sliding hole(24e). The groove is formed on the inner circumference of a horizontal extending face(24b) and is placed along the vertical face. Then the vertical face keeps connecting with a groove(24c) of the upper part of a bush(24) by the sliding hole. Due to the groove(24d), the sliding hole is extended vertically and the lower part of the bush is extended to both sides even if a hinge pin is deviated from a regular angle.
Patent KR-20000046324-A (KR)
Title: Main control unit of host digital terminal in fiber loop carrier-curb system
Inventor: KIM DAE HYON
IPC: H04B10/00
Filed: 1998-12-31
Abstract: PURPOSE: A main control unit of a host digital terminal in the FLC-C(Fiber Loop Carrier-Curb) system is to provide an apparatus to carry out the function of overall control and management for the HDT(Host Digital Terminal) of the FLC-C system. CONSTITUTION: A microprocessor unit(310) controls each of the units configuring a main control unit(215). A status and control register unit(320) is composed of registers storing the required status and control information of an FLC-C system. A LAN interface unit(330) carries out the function to interface an ethernet port with the microprocessor unit(310). A serial communication unit(340) connects the microprocessor(310) and a required operating terminal each other. An inter processor communication processing unit(350) helps the microprocessor(310) and the microprocessor of other function units inside of a host digital terminal carry out the inter processor communication each other. A first cell bus connection unit(360) and a second cell bus connection unit(370) are connected with an ATM cell bus(213) so that the main control unit(215) can transmit nd receive the signal of an ATM cell unit. An operation and maintenance function unit(380) carries out the operation and maintenance function required for ATM cells inputted and outputted through the first cell bus connection unit(360).
Patent KR-20000046847-A (KR)
Title: Method for preserving screen of projection television
Inventor: KIM DONG HYUN
IPC: H04N5/445
Filed: 1998-12-31
Abstract: PURPOSE: A method for preserving a screen of a projection television is provided to change the position of a warning message horizontally in order to preserve the screen. CONSTITUTION: A method for preserving a screen of a projection television includes a first thru a third steps. At the first step, a warning message announcing that no input signal is detected for a predetermined period of time is displayed(S2) on the screen. At the second step, after a key input is detected, the key input is interpreted and corresponding operation is performed(S4). At the third step, the position of a warning message is changed horizontally when the warning message display time exceeds predetermined period of time, or the warning message is set to assume a form of variable shapes randomly.
Patent KR-19990036132-A (KR)
Title: 적층 플레이트 제조용 열전사롤, 열전사롤을 이용한 금속시트의 가열방법 및 열전사롤을 구비한 적층 플레이트 제조장치
IPC: B21D13/04
Filed: 1996-08-02
Abstract: 열전사롤을 제공하기 위하여  복수개의 리세스로 이루어진 열전사 패턴이  롤의 표면상에  형성되는 경우,  그 열전사롤에 의해  금속시트가  가열되어  적층 플레이트가  형성되어,  그 적층플레이트로서  일체로된  드럼 바닥형 (drum-bottom type) 캔이  제조되며,  적층 플레이트의 리세스와 마주보는  캔 부위에  열변형에 기인한  링형태 자국 (scratches) 이  발생된다.     그 자국상에  기포가  형성되기 쉬워  그 기포 주위의 내부식성이  열화되어진다.     본 발명은  그러한 자국이 없는  열전사롤을  제공하는  목적을 갖는다.     본 발명에서,  롤 표면에 형성된 복수개의 리세스를 갖는 종래 전사롤은  실질적으로 그 전체 표면상에 걸쳐서  얇은 금속 슬리브 (130) 에 의해  피복된다.     다른 방법으로는,   그 리세스 (106) 는  커버 본체 (132) 에 의해  밀폐된다.      리세스내의 공간을  열저항체로서 제공하여  종래 패턴과 유사한 열전사패턴이  형성되나,  롤의 표면은  적층플레이트상에 자국이  발생되지 않도록  평평하게  형성된다.
Patent KR-19990063706-A (KR)
Title: 반송(搬送) 체인 장치
IPC: B65G37/00
Filed: 1997-07-16
Abstract: 핀링크와 부싱과 반송부재 부착부를 합성수지에 의해 일체형으로 형성하여 구성한 오프셋 링크본체에 병의 반송부재를 장착한 체인링크를 연결핀으로 필요한 수 만큼 연결하여 반송체인을 형성하고 그 반송체인을 스프로켓과 체인 안내부재로 지지하여 반송 체인 장치를 구성하고, 상기 한쌍의 반송 체인 장치를 병의 반송로를 끼우게 끔 양측에 배열하는 동시에, 상기 병의 반송부재를 대략 L상으로 한 지지판에 의해 병의 구경부에 설치한 홀더링를 양측으로부터 지지하도록 배치하고, 상기 병의 반송부재의 지지판에 의해 병의 목부분에서 밑으로 매달린 상태로 반송시키도록 한 반송 체인 장치를 구성한다.
Patent KR-19990082280-A (KR)
Title: 미립자성 운반체 및 이를 사용한 의약 조성물
IPC: A61K47/32
Filed: 1997-02-20
Abstract: 본 발명은 약물 운반 시스템(Drug Delivery System: DDS)에서 약물운반체로서 유용한 미립자성 운반체 및 이를 사용한 의약 조성물에 관한 것이다.  본 발명은 폴리 N-알킬아크릴아미드 또는 폴리 N-알킬메타크릴아미드 사슬 등을 그라프트 사슬로 하는 그라프트 코폴리머(A); 그라프트 코폴리머(A)와, 폴리아크릴산 또는 폴리메타크릴산을 그라프트 사슬로 하는 그라프트 코폴리머(B-1) 및 폴리비닐아민 화합물을 그라프트 사슬로 하는 그라프트 코폴리머(B-2)에서 선택된 1종 또는 2종 이상의 그라프트 코폴리머를 조합한 조성물을 입자상 운반체로서 사용함을 특징으로 한다. 
     [선택도]  없음
Patent KR-19990087345-A (KR)
Title: 인쇄회로기판에 칩 카드를 전기적으로 접속하기 위한 장치
IPC: G06K17/00
Filed: 1997-02-27
Abstract: 칩 카드 상의 접촉점들과 일치되는 형태로 배치된 구멍들(3)을 갖는 베이스 플레이트(2)를 구비한 하우징(1) 및 하우징 내에 제공된 콘택트들(4)을 가지며, 콘택트들은 실질적으로 U자 형으로 구부려지고 칩 카드와의 접촉을 이루기 위한 제 1 탄성 레그(41)와 회로기판과의 접촉을 이루기 위한 제 2 탄성 레그(42) 및 하우징(1) 상에 고정하기 위한 중앙부 영역(43)을 구비하며, 제 1 탄성 레그들(41)은 베이스 플레이트(2)에 실질적으로 평행하고 접촉영역(411)과 함께 구멍들(3)을 통하여 뻗으며, 콘택트들(4)의 중앙부 영역(43)은 베이스 플레이트(2)에 실질적으로 수직으로 연장되는 칩 카드, 특히 SIM 카드를 인쇄회로기판에 전기적으로 접속하기 위한 장치.
Patent KR-19990087477-A (KR)
IPC: A61K47/34
Filed: 1997-02-26
Abstract: A pharmaceutical composition for the controlled release of therapeutic agents from carboxylic acid ortho ester polymers contains a pharmaceutically acceptable salt of an acid, which together with the acid R1-COOH liberated from the decomposition of the ortho ester polymer forms a buffer system in a physiologically acceptable pH range.
Patent KR-20000016624-A (KR)
Title: Inhibition of serotonin reuptake
Inventor: AUDIA JAMES E
IPC: A61K31/44
Filed: 1997-06-12
Abstract: PURPOSE: Provided are compounds and a method for the inhibition of serotonin reuptake in mammals. CONSTITUTION: The method for the inhibition of serotonin reuptake in mammals comprises a step of administering to a mammal in need of such inhibition an effective amount of a compound of formula I; where Z is a structure of formula (i): where A-B is -C=CH- or -C(R5)-CH-; X is S or NR4; R1 is H, halo, formyl, C1-C4 alkyl, C1-C4 alkoxy, thienylmethyloxy, 4,5-dihydrothiazol-2-y1, cyano, nitro, carboxamido, trifluoromethyl or hydroxy; R2 is H or halo; R3 is H, C1-C4 alkyl, (C1-C4 alkylene)-aryl, or -CH2-Y-NR7R8; R6 is H or methyl; and Y is -CH2- or -C(O)-.
Patent KR-19990045780-A (KR)
Title: 무수프탈산부산물을이용한폴리우레탄의제조방법
Filed: 1999-01-05
Abstract: 본 발명은 무수프탈산(Phthalic Anhydride : PA) 부산물을 이용한 폴리우레탄의 제조방법에 관한 것으로, 그 목적은 무수프탈산제조공정에서 발생되는 부산물인 PA슬러리로부터 PA슬러리베이스 폴리올(Polyol)을 합성하여 폴리우레탄 제조시 원료로 사용되는 폴리올로 재활용할 수 있도록 한 것이다. 
     본 발명의 일실시예는 촉매의 존재하에서 용제를 이용하여 PA슬러리와, 활성화 수소물질을 90∼100℃의 온도범위에서 완전히 용융시키고, 이후 서서히 승온(昇溫)시키면서 180∼250℃의 온도범위에서 완전히 반응시킨 후 냉각시켜 PA슬러리베이스 폴리올을 제조하는 단계와;  PA슬러리베이스 폴리올과 사전에 준비된 폴리올및 각종 첨가제를 투입하여 예비 혼합물을 만든 후, 적정량의 이소시아네이트 화합물과 혼합하고 일정한 형태의 금형에 넣어 경질의 폴리우레탄 제품읕 제조하는 단계를 포함한다. 
     본 발명의 다른 실시예는 촉매존재하에서 용제를 이용하여 PA슬러리와, 활성화 수소물질을 90∼100℃의 온도범위에서 완전히 용융시키고, 이후 서서히 승온(昇溫)시키면서 180∼250℃의 온도범위에서 완전히 반응시킨 후 냉각시켜 PA슬러리베이스 폴리올을 제조하는 단계와; 준비된 이소시아네이트 화합물과 상기 PA슬러리베이스 폴리올과 각종 첨가제 혼합물을 교반하여 사전에 정량한 폐 폴리우레탄 폼의 스크랩에 투입한 후 교반하여 혼합하고, 일정한 형태의 금형에 넣어 재활용된 경질의 폴리우레탄 제품을 만드는 단계를 포함한다. 
     본 발명의 또 다른 실시예는 촉매의 존재하에서 용제를 이용하여 PA슬러리와 활성화 수소물질을 90∼100℃의 온도범위에서 완전히 용융시키고, 이후 서서히 승온시키면서 180∼250℃의 온도범위에서 완전히 반응시킨 후 냉각시켜 PA슬러리베이스 폴리올을 제조하는 단계와; PA슬러리베이스 폴리올과 사전에 준비된 폴리올 및 각종 첨가제를 투입하여 예비혼합물을 만든 후 적정량의 이소시아네이트 화합물과 혼합하여 2액형 타입의 우레탄 접착제를 제조하는 단계를 포함한다.
Patent KR-20000060246-A (KR)
Inventor: AHN JAE GON
IPC: H01L21/304
Filed: 1999-03-12
Abstract: PURPOSE: A method for preventing a particle from being re-absorbed to a wafer is provided to decrease a re-absorption rate of the particle to the wafer, by inclining the wafer to be in parallel to the absorption direction of the particle in cleaning the wafer, and by putting the wafer into a cleaning liquid. CONSTITUTION: In a method for preventing a particle from being re-absorbed to a wafer, the wafer is soaked into a cleaning liquid in cleaning the wafer while inclined to be in parallel to the resultant direction of an electrostatic attraction and gravity affecting the particle, so that the wafer can go beyond the range of the absorption of the particle.
Patent KR-20000060895-A (KR)
Inventor: SONG JONG HO
IPC: H04W36/20
Filed: 1999-03-20
Abstract: PURPOSE: A method for deciding inter-frequency hard handoff time points in a code division multiple access(CDMA) system is provided to induce a hard handoff process to a neighboring cell according to call counting processes in same cells without tuning calls which are set up in a boundary frequency area with a common frequency of a same base station, and to distribute the calls by performing an inter-frequency hard handoff process when counted calls are little. CONSTITUTION: A T_DOWN value is a reference value for searching an inter-frequency hard handoff time point. The T_DOWN value is set up within a range which is not less than a T_DROP value. A call count of a common frequency is identified by referring to the T_DOWN value. The call count is compared with a preset threshold value. If the call count is over the threshold value, a same cell inter-frequency hard handoff process is performed. If the call count is under the threshold value, a neighboring cell inter-frequency hard handoff process is performed.
Patent KR-20000065580-A (KR)
Inventor: KANG KWAN YEOB
IPC: C12N15/21
Filed: 1999-04-07
Abstract: PURPOSE: Provided is a preparation method of recombinant interferon-alpha of which methionine at amino end is eliminated. Thereby the recombinant interferon-alpha is prepared easily which is suitable for a therapeutic recombinant protein for administration and which is safe in vivo. CONSTITUTION: A method for preparation of recombinant interferon-alpha of which methionine at amino end is prepared by: treating aminopeptidase originated from Aeromonas proteolytica into recombinant interferon alpha to remove methionine at amino end and reacting at 20-30°C for 12-20 hours; isolating and purifying using cation exchange chromatography; and expressing the recombinant interferon alpha in the recombinant E.coli δpMAIFN alpha, KCCM 10053.
Patent KR-20000065665-A (KR)
Inventor: PARK KWANG MIN
IPC: B05C17/00
Filed: 1999-04-08
Abstract: PURPOSE: A method for protecting and removing pollutional foreign materials which can prevent components of precise machines and various materials in industrial or construction field from polluting and damaging by foreign materials and which can remove polluted parts is provided. CONSTITUTION: A method for protecting and removing pollutional foreign materials comprises applying a suitable quantity of bonding composition obtained by adding a certain amount of plasticizer and curing agent to polyvinyl alcohol as a base material to various materials in industrial or construction field or a surface of components to be assembled by a selected applying means in order to prevent adhering of foreign materials on the subject surface or damaging from the outer environment as well as to remove pollutional materials along with the coating of the bonding composition by separating the bonding composition cured with time from the surface.
Patent KR-20000065802-A (KR)
Title: Semiconductor memory device
Inventor: KANG SANG SEOK
IPC: G11C29/00
Filed: 1999-04-09
Abstract: PURPOSE: A semiconductor memory device is provided to reduce a test time for detecting a short badness between adjacent cells. CONSTITUTION: A semiconductor memory device includes N word line groups(WL10,-WL13), M bit line pairs(BL1,BL1/B...), many memory cells(MC), M sense-amps(12-1...12-m), and N word line driver groups(10-1,...10-n). Memory cells are connected to each word line of N word line groups, and is connected between a bit line and an inverting bit line among M bit line pairs. Sense-amp is connected between M bit line pairs. N word line driver group includes I word line drives for enabling each word line of N word line groups. Many blocks generates I control signal for controlling I word line driver of N word line driver groups, and applies I control signal to N word line groups. When testing a wafer. A word line driver control signal is applied to a word line driver of N word line drivers, Each word line of the N word line driver groups is sequentially enabled by responding to the word line driver control signal and a low address signal. Until the word line is enabled and then disabled, word lines from 1st group to N-1th group maintain their enable state. Thereby, the semiconductor memory device reduces a test time for detecting a short badness between adjacent cells.