baber/WOPTO huggingface dataset:
Patent KR-20020051101-A (KR)
Title: Thermal spray coating method for boron nitride
Inventor: HWANG SUN YEONG
IPC: C23C4/10
Filed: 2000-12-22
Abstract: PURPOSE: A method for thermal spray coating boron nitride is provided to enable thermal spray coating by mixing an appropriate amount of oxides with boron nitride in which thermal spray coating is difficult due to decomposition or oxidation at a high temperature, thereby sintering the mixture into a complex. CONSTITUTION: The method for thermal spray coating boron nitride comprises the process of performing thermal spray coating using powder that is prepared by sintering and crushing the mixture under the vacuum or nitrogen atmosphere after mixing oxides with the boron nitride as a material to be processed, wherein the oxides comprises alumina(Al2O3), zirconia(ZrO2), or a mixture thereof, and further comprises titania(TiO2), yttria(Y2O3), silica(SiO2), ceria(CeO2), hafnium oxide(HfO2), magnesia(MgO), calcium oxide(CaO), or a mixture thereof to control a melting point of the oxides, and wherein detonation gun or high velocity oxygen fuel method is used as the thermal spray coating method.
Patent KR-20020051592-A (KR)
Title: Triode - type field emission device with carbon nanotube cathode, triode - type RF vacuum device and field emission display using it
Inventor: CHO GYEONG IK
IPC: H01J1/30
Filed: 2000-12-23
Abstract: PURPOSE: A triode-type field emission device with a carbon nanotube cathode, a triode-type RF vacuum device and a field emission display using it are provided to prevent a short-circuit phenomenon between the carbon nano tube cathode and a gate by forming a sidewall insulating layer and an upper wall insulating layer. CONSTITUTION: A cathode electrode(220) is formed on an insulating substrate(210). The insulating substrate(210) is formed by depositing an oxide layer or a nitride layer on a quartz substrate or a glass substrate or a silicon wafer. The cathode electrode(220) is formed by a metal or a doped semiconductor layer. A cathode(240) is formed on the cathode electrode(220). The cathode(240) is formed by a carbon nano tube. A sidewall insulating layer(250) is formed at a side of the cathode(240). A gate insulating layer(260) is formed on a side portion of a contact portion between the sidewall insulating layer(250) and the cathode electrode(220). A gate(270) is formed on a side portion of a contact portion between the gate insulating layer(260) and the sidewall insulating layer(250).
Patent KR-20020052332-A (KR)
Title: a bolt of automatic transmission
Inventor: NA DONG HO
IPC: F16B35/04
Filed: 2000-12-26
Abstract: PURPOSE: A bolt for automatic transmission is provided to reduce cost and weight of automatic transmission without changing the size or material of bolt. CONSTITUTION: A bolt(B) comprises a hexagonal head(1) having an expanded portion(1a) formed at the lower end of the head; and a cylindrical body(2) arranged beneath the head, and which has a male screw(2a) formed along the outer periphery of the cylindrical body. The hexagonal head has a reciprocal cone-shaped groove(1b) formed inward from the upper surface of the head. The thickness(t) measured from the apex of the reciprocal cone-shaped groove to the bottom surface of the head is 2/5 or greater with respect to the total height of the head. Thus, the bolt has a weight reduced by the volume of the groove formed at the head.
Patent KR-20020048840-A (KR)
Title: Border Line Marker in the Field
Inventor: KIM JUN HEE
IPC: A63C19/06
Filed: 2000-12-26
Abstract: PURPOSE: A line display apparatus is provided to simplify the installation of a line used in a sports ground, and to achieve a line showing an extended use life and a high strength. CONSTITUTION: The line display apparatus is comprised of a strip shaped mark part(10) extending on the surface of the ground in a desired width; a tubular support part(30) implanted under the surface of the ground in parallel to the strip shaped mark part; a connection part(20) for connecting the strip shaped mark part and the tubular support part; and a lateral flange(11) bent toward the surface of the ground along both edges of the strip shaped mark part.
Patent KR-20020052821-A (KR)
Title: A discharge apparatus for air conditioner
Inventor: CHOI WON JUN
IPC: F24F13/08
Filed: 2000-12-26
Abstract: PURPOSE: A device for discharge of air conditioner is provided to vary a discharge passage discharging air into a space for air conditioning. CONSTITUTION: A device includes a discharge grill(30) having a discharge passage(32) guiding flow of air exchanging heat and discharged into a space for air conditioning; and opening adjusters(40), with streamlined sections, installed on an upper end and a lower end of the discharge passage rotatably centering on a rotary axis and having position setting protrusions on front ends thereof for setting up rotating positions thereof by being selectively placed on setting grooves formed on the discharge grill to vary flowing area of the discharge passage.
Patent KR-20010025438-A (KR)
Title: Functional Kimchi added green tea and process for preparation thereof
Inventor: CHOI NAK JEONG
IPC: A23B7/10
Filed: 2000-12-27
Abstract: PURPOSE: A preparation method of kimchi including green tea leaf having anticancer activity and antimutagenic effect is provided to serve a high functional kimchi product with improved flavor and color and storage life. CONSTITUTION: The green tea additive is prepared by soaking leaf of Camellia sinensis in water of 80deg.C for 9min or 1min. The functional kimchi comprises 3-10% of powdered red pepper, 1-5% of garlic, 0.05-0.2% of Zanthoxylum piperitum, 1-10% of leaf mustard, 5-15% of radish, 1-3% of green onion, 0.1-1.0% of ginger, 1-3% of salted anchovies, 0.5-2% of sugar and 1-3% of salt, as seasoning of the kimchi, and 1-5% of the prepared liquid extract or the remaining materials of the green tea leaf or processed leaf of Camellia sinensis, by the weight of salted cabbages. The mixed kimchi is then aged at 10deg.C. 1-20wt% of extract of tangleweed and mushroom are added to the kimchi to reduce the bitter taste of the green tea leaf and a fresh red pepper is pulverized to be added to the mixture to prevent the change of color of the kimchi by the green tea leaf.
Patent KR-20020058464-A (KR)
Title: A method for forming capacitor in semiconductor device
Inventor: JANG HEON YONG
IPC: H01L27/04
Filed: 2000-12-30
Abstract: PURPOSE: A capacitor formation method of semiconductor devices is provided to decrease a height of a capacitor structure and to prevent degradation due to a depletion of an electrode. CONSTITUTION: An interlayer dielectric(11) having a contact plug(12) is formed on a semiconductor substrate(10). A sacrificial layer(13) is formed on the resultant structure. A groove is formed by selectively etching the sacrificial layer(13). An amorphous silicon layer(14) and an HSG(Hemi-Spherical Grain) layer(15) are sequentially formed at both sidewalls of the groove. Dopants containing nitrogen are implanted into the HSG layer(15) and the amorphous silicon layer(14). A metal film, a dielectric film(16) and a first conductive layer for storage electrode are sequentially formed on the entire surface of the HSG layer. The sacrificial layer(13) of a cell region is selectively removed. A second conductive layer for storage electrode is formed on the resultant structure.
Patent KR-20010015553-A (KR)
Title: 윈드스크린 와이퍼 시스템
IPC: B60S1/04
Filed: 1998-12-14
Abstract: 본 발명은 와이퍼 모터(10)를 포함하는 윈드스크린 와이퍼 시스템에 관한 것이다. 상기 와이퍼 모터(10)는 와이퍼 모터(10)가 연결되어 있는 기어 하우징(12)과, 중공 프로파일(86, 88, 90)을 가진 와이퍼 지지부(48, 50, 52)에 의해 차체에 고정된다. 상기 기어 하우징(12)은 하나 이상의 스크류 네크(16, 18)를 구비하고, 상기 스크류 네크(16, 18)는 출력단 지지돔(28)으로부터 이격 배치되어 동일한 방향으로 연장된다. 본 발명에 따라서, 와이퍼 지지부(48, 50, 52)의 중공 프로파일(86, 88, 90)은 스크류 네크(16, 18)와 지지돔(28) 사이를 통해 안내되고, 스크류 네크(16, 18)의 방향으로 연장되는 영역(24, 26)에 걸쳐 지지돔(28) 및/또는 스크류 네크(16, 18)의 외주면(30, 32, 34)상에 지지되어 있으며, 하나 이상의 고정 장치(78)에 의해 적소에 유지된다.
Patent KR-20010023720-A (KR)
Title: 작업기계의 유압제어장치
IPC: E02F9/22
Filed: 1999-07-06
Abstract: 작업기계의 유압제어장치에 있어서, 유압 펌프(20)로부터 방출된 압력 오일의 유량과 방향이 스윙 모터(4)에 압력 오일을 공급하기 위한 제어 밸브(27)에 의해 제어되고, 스윙 모터(4)에 공급되는 압력 오일의 일부를 유출하기 위한 유출 오일 유로, 유출량을 조절하기 위한 유출 오일 유로(33)에 제공된 차단 밸브(36), 솔레노이드 비례 밸브(37)를 통하여 차단 밸브(36)를 제어하기 위한 제어기(42) 및 원격 스윙 제어 밸브(39)의 작동량을 검출하는 압력 센서(40, 41)로 구성되어진 작업기계의 유압제어장치에 있어서 제어기(42)는 압력 센서(40, 41)에 의해 검출되는 작동량에 따라 유출량을 설정하고, 유출량 설정을 근거로 하여 차단 밸브(36)의 개구 영역을 제어하며 그리고, 갑작스러운 스윙 작업이 발생할때 충격을 진압하여 주는 것을 특징으로 하는 작업기계의 유압제어장치.
Patent KR-20010030726-A (KR)
Title: 엔지니어링 열가소성 플라스틱 물질의 강화용 유리 섬유용사이징 조성물
IPC: C08J5/06
Filed: 1998-09-21
Abstract: 본원 발명은 엔지니어링 열가소성 성형 콤포지트의 강화에 사용되는 섬유용 에폭시 및 폴리우레탄-기재 사이징 조성물에 관한 것으로, 이 사이징 조성물은 수득되는 콤포지트 물품에 증진된 가수분해 안정성을 제공하며 변색을 감소시킨다.
Patent KR-20010031271-A (KR)
IPC: B41C1/10
Filed: 1998-10-23
Abstract: High-quality composite printing elements are prepared without the need for precise registration of constituent photocurable elements by disposing at least one photocurable element, and preferably a plurality of photocurable elements, upon a surface of a substantially planar carrier sheet in approximate register and then transferring a computer-generated negative onto a surface of the elements.
Patent KR-20010032591-A (KR)
IPC: G06K19/073
Filed: 1999-09-20
Abstract: A data carrier device (3) includes data storage means (13) for storing key data (SD), processing means (14) for processing key data (SD), data bus means (15) which include a data bus (16) with a number of N parallel data leads which connects the data storage means (13) to the processing means (14), and via which N-bit key data (SD) can be transmitted in parallel during each transmission operation, and power supply means (E) for supplying the data carrier device (3) with power (UB); transmission data (ÜD-SD), containing key data (SD), can be stored in the data storage means (13) and the data bus means (15) are arranged to transmit N-bit transmission data (ÜD-SD) in each transmission operation, which transmission data (ÜD-SD) has a number of M bits of value 1 which is always the same and independent of the key data (SD); the data bus means (15) have a power consumption which is independent of the key data (SD) and include selection means (29, 31) which are arranged to select, after a transmission operation, a number of K bits, constituting the key data (SD), from the total number of N transmitted bits of the transmission data (ÜD-SD).
Patent KR-20010033961-A (KR)
Title: 결정학적으로 안정된 비정질 세파로스포린 조성물과 그제조 방법
IPC: C07D501/00
Filed: 1999-01-07
Abstract: 본 발명은 비정질 세프디토렌 피복실 물질과 수용성 고분자 첨가제의 균질 혼합물을 포함하는 각각의 입자로만 이루어지는 경구 투여 가능한 황색 분말상 조성물에 관한 것으로, 본 조성물은 결정질 세프디토렌 피복실과 수용성 고분자를 산의 수용액에 용해시킨 후, 중화 처리를 행하여 공침전시키고, 얻어진 침전물을 건조 처리하여 입자상 생성물을 수득함으로써 얻을 수 있다.
Patent KR-20010041657-A (KR)
Title: 사이클로스포린 또는 마크롤라이드를 포함하는 에멀젼예비농축물
IPC: A61K47/12
Filed: 1999-03-04
Abstract: 본 발명은 난용성 활성 제제와 담체를 포함하는 에멀젼, 예컨대 마이크로에멀젼 예비농축물을 제공한다. 상기 활성 제제는 예컨대 사이클로스포린 또는 마크롤라이드일 수 있다.
Patent KR-20010071337-A (KR)
Title: 퍼플루오르화 유기 치환된 사이클로실록산 및 상기사이클로실록산으로부터 제조된 공중합체
IPC: C08G77/04
Filed: 1999-02-26
Abstract: 하기 화학식 I의 변형되지 않은 퍼플루오르화 유기 치환된 사이클로실록산의 조성물, 및 상기 사이클로실록산으로부터 및 상기 사이클로실록산과 다른 실록산의 혼합물로부터 제조된 공중합체 조성물이 기술되어 있다: 
     화학식 I 
     
       
     
     상기 식에서, 
     m은 1 내지 12의 정수이고; 
     n은 1 내지 4의 정수이고; 
     X는 2가 라디칼로서, O, NH, N(CH 3 ), OC(O), NHC(O), N(CH 3 )C(O) 및 CH 2 가 포함될 수 있으며; 
     R F 는 탄소원자수 1 내지 25개의 퍼플루오르화된 직쇄 또는 분지쇄 1가 알킬 라디칼이거나; 또는 
     R F 는 하기 화학식 II의 퍼플루오르화 에테르 라디칼이다: 
     화학식 II 
     
       
     
     [상기 식에서, p는 1 내지 10의 정수이다.]
Patent KR-20010071397-A (KR)
Title: 광학식 엔코더
IPC: G01D5/347
Filed: 1999-05-24
Abstract: 회전 디스크에 먼지가 부착되는 일 없이 정확하게 회전을 검출할 수 있는 광학식 엔코더를 제공한다. 
     하우징(1)의 베어링(6)에 지지된 회전축(5)과, 회전축(5)에 고정된 회전 디스크(8)와, 하우징(1)에 장착된 발광소자(10)와, 발광소자(10)로부터 회전 디스크(8)를 투과 또는 반사된 광을 수광하는 서브기판을 통해 하우징(1)에 장착된 수광소자(12)와, 수광소자(12)로 수광한 광으로부터 회전량 또는 회전위치를 검출하는 회로를 탑재하여 하우징에 장착된 메인기판(13)을 구비한 광학식 엔코더에 있어서, 메인기판(13)의 외주에 결합되는 환상으로 형성한 커버부(9a)와, 이 커버부(9a)에 형성된 발광소자 지지부(9b)를 갖는 홀더(9)를 하우징(1)에 장착하여 구성한다.
Patent KR-20020061675-A (KR)
Title: Valve for imtermit pouring in air part of vacuum pump
Inventor: CHO HO YEONG
IPC: F04B49/03
Filed: 2001-01-17
Abstract: PURPOSE: A valve for intermitting air injection for vacuum pump is provided to make processing of parts and assembly convenient by reducing installation area in a housing of the vacuum pump and simplifying structure thereof. CONSTITUTION: A valve comprises an installation part(30) formed on a housing(2) on a side to which air is injected and having an actuating groove(31) formed therein, an injection passage(32) formed on an inside of the actuating groove to be fluidically connected with an inside of the housing and an injection port(33) penetrating one an inner surface and an outer surface of one side of the housing and fluidically connected with the actuating groove; an intermittent member(40) inserted in the actuating groove of the installation part to be freely move and slid by air pressure to intermit air injected into the housing; a cover(50) coupled to an opening part of the actuating groove on the installation part to close the actuating groove; an elastic member(70) having both ends supported by the intermittent member and the cover, respectively, to return the intermittent member; and an opening and closing unit(60) having both ends interfering with the cover and an air guiding member(61) fluidically connected with the installation part where the injection port is formed, respectively, to intermit air flow.
Patent KR-20020063649-A (KR)
Title: In-mold molding method and the device of lable film
Inventor: SIN SAM CUEL
IPC: B29C45/14
Filed: 2001-01-30
Abstract: PURPOSE: A method and an apparatus for insert-molding a label film are provided to reduce the fault of label film by supplying the label film to a label film guiding device with adsorbing the label film using a label film conveying device. CONSTITUTION: A label film(11) having a predetermined shape is stacked on a label film stacking device(100). Then, the label film(11) is adsorbed to an adsorption pad(271) of a label film conveying device(200) and is conveyed to label chutes(350,360) of a label film guiding device(300). The label chutes(350,360) are positioned at a lower portion of a fixing mold(420). A vacuum adsorption plate(270) of the label film conveying device(200) is conveyed into the label film stacking device(100). The label film(11) positioned at an inner portion of an inner mold(400) is adsorbed to a vacuum suction line of the fixing mold(420). Then, a nozzle of an injector injects resin into a hot runner so that a cavity is filled up with resin.
Patent KR-20010074085-A (KR)
Title: Monitor charcoal
Inventor: NAM SEUNG WOO
IPC: H05K9/00
Filed: 2001-02-13
Abstract: PURPOSE: A monitor is provided, in which charcoal material is added to the outer surface of the monitor cover, to thereby protect user's body from electromagnetic wave. CONSTITUTION: A monitor cover(1) is injection molded from a synthetic resin where charcoal powder of 0.1 to 10 weight% is added. Alternatively, the monitor cover which is injection molded is painted with the material containing charcoal powder added by 1 to 20 weight% to the total amount of paint material. The charcoal material contained in the monitor cover serves to absorb electromagnetic wave produced from the monitor, radiate far infrared ray and anion which are beneficial to human body, and purify indoor air during use of the monitor.
Patent KR-20010096571-A (KR)
Title: Data processing system with adjustable clocks for partitioned synchronous interfaces
Inventor: FAUCHER MARC R
IPC: G06F1/08
Filed: 2001-02-22
Abstract: PURPOSE: A data processing system is provided to make each multiplexor supply one of the clock signals for two or more control units as a response to a clock selection signal from a clock selection register. CONSTITUTION: The system comprises processors(22), clock sources(30), controllers(24), clock selection registers(40), multiplexors(36), communication lines(38), and archcomp registers(50). Each processor(22) is connected to at least one among remaining processors(22). The clock sources(30) supply clock signals, and the clock selection registers(40) supply clock selection signals. Each multiplexor(36), connected to the clock sources(30) and one clock selection register(40), outputs one of the clock signals to at least two controllers(24) in a response to the clock selection signal supplied by the connected clock selection register(40). The communication lines(38) connect each multiplexor(36) to two or more controllers(24). The archcomp registers(50) has a communication sequence protocol, is connected to each controller(24), and expresses whether the processors(20) must conform to the communication sequence protocol.
Patent KR-20010096578-A (KR)
Title: Working vehicle for paddy field
Inventor: KOJIMASA CHIYUKI
IPC: A01B63/00
Filed: 2001-02-28
Abstract: PURPOSE: A paddy field working machine is provided to perform the automatic lifting or lowering control of a working device through a hydraulic device, to perform the stable automatic lifting or lowering control at a set lifting rate scarcely causing an over shooting during a working travel, and to rapidly forcibly lift the working device at a sufficient rate on the side of a balk, or the like. CONSTITUTION: The paddy field working machine is characterized by disposing a lifting speed-controlling member for contact-controlling the operation of a control valve(60) to limit the opening degree of the valve on the lifting side between a movable control operation member(84) inter-locked and linked to a ground sensor and a movable member operated together with a lifting or lowering lever(66), allowing the movable control operation member to approach the movable member to operate the contact function of the lifting speed-controlling member, when the lifting or lowering lever is placed at a working position, and separating the movable control operation member from the movable member to cancel the contact function of the lifting speed-controlling member, when the lifting or lowering lever is not placed at the working position.
Patent KR-20020071635-A (KR)
Title: A purification method of pravastatin precursor compactin and derivatives thereof using HP20 resin and acetone
Inventor: CHA JE UK
IPC: C12P17/06
Filed: 2001-03-07
Abstract: PURPOSE: Provided are concentration and purification methods of pravastatin precursor compactin and derivatives thereof particularly by absorption chromatography using HP20 resin and acetone. CONSTITUTION: In the purification method of pravastatin precursor compactin and its derivatives by absorption chromatography using HP20 resin obtained by fermenting strain which produce compactin and its derivatives, the absorption chromatography is performed at 0-20% of the acetone content in absorption solution with maintaining the acetone content in eluting solution to 60% or more.
Patent KR-20020072724-A (KR)
Inventor: MUN SEUNG HWAN
IPC: G02F1/1345
Filed: 2001-03-12
Abstract: PURPOSE: A liquid crystal display is provided to form wires for connecting a signal transmission direction terminal to a power voltage or a reference voltage on a thin film transistor substrate for realizing the gate dual bank structure with driving ICs of one kind. CONSTITUTION: A liquid crystal display includes a thin film transistor substrate(100), driving ICs(Integrated Circuits;410) for outputting driving signals for driving the thin film transistor substrate and connected to a predetermined power voltage for determining the driving signal output sequence, control signals input to the driving ICs for controlling the driving of the driving ICs and having a power voltage(VDD) and a reference voltage(VSS), a first transmission line(101) connected to a signal transmission direction terminal(415) and a second transmission line(103) connected to the first transmission line and transmitting at least one power signal.
Patent KR-20010112058-A (KR)
Title: 낱장식 세정 장치 및 웨이퍼 세정 방법
IPC: H01L21/304
Filed: 2001-03-23
Abstract: 본 발명은 우수한 웨이퍼의 제전(除電) 효과를 갖는 낱장식 세정 장치 및 웨이퍼 세정 방법을 실현하는 것을 목적으로 한다. 
     회전대(2)에 의해 웨이퍼(1)를 지지하는 동시에 회전시키면서, 금속 배선(5)을 거쳐서 접지된 제2 분사 노즐(4)로부터 웨이퍼(1)의 이면 중심 부근에 비저항치가 낮은 액체의 분사를 개시한 후, 제1 분사 노즐(3)로부터 웨이퍼(1)의 표면에 대하여 순수(純水)를 분사한다.
Patent KR-20020075118-A (KR)
Title: System and method for collection the customer information and coupon / mileage service by wireless terminal
Inventor: HAN JAE MIN
Filed: 2001-03-23
Abstract: PURPOSE: A system for collecting client purchase information and supplying a coupon/mileage using a wireless terminal is provided to enable a client to receive a discount benefit without issuing an unnecessary bonus card and without mounting an additional communication circuit or a card reader necessary for a payment approval. CONSTITUTION: A client recognizes a discount benefit and visits at a member store(S1). A member store inherent number and a commodity purchase state are inputted in a wireless terminal of a client, and a wireless communication unit of a client managing company is connected. In addition, a coupon transmission message is received from the client managing company through the wireless terminal(S2). The client managing company reads a truth or falsehood of a purchase state and an inputted information error inputted by the client, and calculates a discount benefit capable of being received to the client(S3). The calculated discount benefit is transmitted to the wireless terminal of the client through a short message transmission service system of the client managing company(S4). The wireless terminal which displays the discount benefit message is suggested to the member store and the member store connects to the wireless communication unit of the client managing company, and a transaction approval or not of the client is confirmed(S5). The member store inputs it's member store password to the wireless terminal of the client and transmits the password to the client managing company, and the client managing company upgrades a discount benefit or a mileage point in a client database(S6). The final transaction checking state and an accumulated point state message are transmitted to the terminal of the client through the short message transmission service system, and all connections are released(S7).
Patent KR-20020075932-A (KR)
Title: Manufacturing method for the corrugated cardboard
Inventor: HWANG GANG HWA
IPC: D21H27/28
Filed: 2001-03-27
Abstract: PURPOSE: A process of preparing corrugated cardboard by mixing a functional material such as hard charcoal, bioceramic, etc., pulp and an adhesive, or spraying the functional material on the surface of corrugated cardboard is provided. Whereby, the product has an effect on preservation of agricultural products or foods for a long period of time therein. CONSTITUTION: A functional material such as hard charcoal, bioceramic, Rhizoma Coptidis, TiO3 or the like is mixed with pulp and an adhesive, or sprayed on the surface of corrugated cardboard during the production of corrugated cardboard. The functional material has an antimicrobial, sterilizing and insecticidal effect as well as releasing an anion.
Patent KR-20020081734-A (KR)
Title: Method for placing slide door for automobile
Inventor: SHIN GYEONG SIK
IPC: B62D65/06
Filed: 2001-04-19
Abstract: PURPOSE: A sliding door installation method for a bus is provided to reduce failure rate and working hours, and to improve productivity by mounting a center roller assembly and a lower roller assembly in a slide door and assembling an upper roller assembly with the slide door. CONSTITUTION: A center roller assembly is installed in the middle of a slide door, and a lower roller assembly is mounted in a lower part of the slide door(S1). An upper roller assembly and an upper rail are installed in the upper part of a vehicle body(S2). A center rail is mounted in the middle of the vehicle body, and a lower rail is installed in the lower part of the vehicle body(S3). The upper roller assembly is installed in the vehicle body, and the slide door is mounted in the vehicle body(S4). The failure rate is minimized, and productivity is increased with reducing working hours and manpower.