baber/WOPTO huggingface dataset:
Patent KR-20000052669-A (KR)
Title: Cover sheet for ptp
Inventor: MAEDA SIGERU
IPC: C08L27/06
Filed: 1997-10-22
Abstract: PURPOSE: A cover sheet for PTP is provided which is not needed to be separated from the base material after use of PTP and is convenient in recycling and disposal after use and advantageous for environmental protection and which is excellent in push-through property. CONSTITUTION: A cover sheet for PTP has a thickness of 0.01-1 mm and comprises a resin composition containing 5-250 parts by weight of an inorganic filler based on 100 parts by weight of a polyvinyl chloride based resin, the sheet having a bursting strength of 0.01-5 kg/cm¬2.
Patent KR-20000069029-A (KR)
Title: 코움 필터
IPC: H03H17/00
Filed: 1998-08-21
Abstract: 본 발명은, 낮은 주사 속도의 디지털 데이터 흐름을 제공하기 위해, 높은 주사 속도의 디지털 데이터 흐름이 제공되고 직렬로 접속된 적어도 3개의 적분기(I1, I2, I3)로 이루어진 코움 필터에 관한 것이다.  디지털 데이터 흐름의 가장 높은 값의 비트는 제 1 및 제 2 적분기(I1, I2)에서 리세팅되고, 제 1 적분기(I1)에서의 비트의 리세팅이 계수기(Z)에 저장된다.  계수기(Z)의 계수 상태는 리세팅 시간에 최종 적분기(I3)의 가장 높은 값의 비트로 저장된다.
Patent KR-20010005837-A (KR)
IPC: H03F3/21
Filed: 1999-01-20
Abstract: 이동전화기의 마더보드에 연결 및 자동배치에 적합한 증폭기 모듈에 관한 내용이다. 증폭기 모듈은 전기적으로 도체인 기층을 2개 이상 갖고 있는 기판을 포함한다. 기판상에 제1 및 제2 반도체칩이 배치된다. 제1 반도체칩은, 제1 주파수 대역에서 동작하는 제1 전력증폭기의 일부분으로서 동작하는 집적회로를 포함한다. 제2 반도체칩은 제2 주파수 대역에서 동작하는 제2 전력증폭기의 일부분으로 동작하는 집적회로를 포함한다. 제1 및 제2 반도체칩은 기판상에 부차되며, 기판에 부착된 다른 소자들과 전기적으로 연결된다.
Patent KR-20010005972-A (KR)
Title: 저음 강화를 위한 방법 및 장치
IPC: H04R3/00
Filed: 1998-04-03
Abstract: 듣는 사람에게 음 신호의 의사 저주파수 정신 음향 감지(low frequency psycho-acoustic sensation: 의사 LFPS)를 전달하기 위한 장치는 음 신호로부터 고주파수 신호와 관심있는 저주파수 범위에 걸쳐 있는 저주파수(LF) 신호를 유도해 낼 수 있는 주파수 유닛, 및 주파수 발생기에 결합되어 있고 관심있는 저주파수 범위 내의 각 기본 주파수에 대해 고조파 시퀀스(a sequence of harmonics)를 가지는 잔여 고조파 신호(residue harmonics signal)를 발생시킬 수 있는 고조파 발생기를 포함하되, 고조파 시퀀스는 각 기본 주파수에 대해 발생되는데 기본 주파수의 고조파의 주그룹 중에서 최소한 두 개의 연속적인 고조파를 포함하는 고조파의 제1 그룹을 포함하며, 고조파 발생기에 결합되어 있고 잔여 고조파 신호의 음의 크기(loudness)를 LF 신호의 음의 크기와 일치시킬 수 있는 음의 크기 유닛, 및 정신 음향 대안 신호(psycho-acoustic alternative signal)가 얻어지도록 잔여 고조파 신호와 고주파수 신호를 합산할 수 있는 합산 유닛을 포함한다.
Patent KR-20010006261-A (KR)
Title: 유선형 외형을 갖는 외과용 스텐트
IPC: A61L31/00
Filed: 1998-04-07
Abstract: 유선형 외형을 갖는 다수의 스텐트 세그먼트(stent segment)로 형성된 외과용 스텐트(10)가 제공된다. 각 스텐트 세그먼트(40)는 내부면(44)으로부터 이격된 외부면(42)을 포함한다. 상기 내부면(44)은 내부 에지(54, 56)에 의해 경계를 이루며, 상기 외부면(42)은 외부 에지(50, 52)에 의해 경계를 이룬다. 상기 외부 에지(50, 52)는 외부 만곡부(64, 66)에 의해 한정되는 외형을 가지며 상기 내부 에지(54, 56)는 내부 만곡부(60, 62)에 의해 한정되는 외형을 가진다. 상기 내부 만곡부의 곡률반경(70, 72)은 상기 외부 만곡부(64, 66)의 곡률 반경보다 크다. 그러므로 상기 내부면(44)은 상기 내부면(44) 근처의 혈액/체액(B)의 통과를 위해 유선화되며 상기 외부면(42)은 동맥과 같은 인체의 루멘(lumen)의 내부면(S)을 자극함 없이 최대한의 고착력(adherence)을 얻기 위해 특별하게 설정된다. 상기 스텐트 세그먼트(40)의 표면(42, 44)은 상기 스텐트 세그먼트(40) 근처에서 혈액/체액 유동을 더 향상시키고 상기 외과용 스텐트(10)가 이식되는 상기 신체 루멘의 내부면(S)을 형성하는 티슈(tissue)로의 자극을 최소화하기 위해 충분한 매끄러움으로 표면 마무리된다.
Patent KR-20000018181-A (KR)
Inventor: LEE CHANG HOON
IPC: G06F9/00
Filed: 2000-01-17
Abstract: PURPOSE: A web VPN is provided to eliminate inconvenience to install the client program for VPN every client computer in case of the use of VPN. User suffers difficulty in build-up of VPN if he does'n't have much knowledge of VPN as user should install the client program to his computer and set in accordance with computer environment. The web VPN downloads WEB OS and VPN client program automatically from web according to user's request and enables VPN service to be used only with the input of user's log-in name and password. CONSTITUTION: The web VPN has a feature that provides VPN client program using webserver and OS server. Thereby, it is possible to use VPN service, whoever connects to internet, at low cost without a load of investment for hardware, as VPN service provider provides the equipments to use virtual private network.
Patent KR-20010076818-A (KR)
Title: An automobile with a screen publicity function
Inventor: SEO CHOONG HWAN
IPC: B60P3/00
Filed: 2000-01-28
Abstract: PURPOSE: A vehicle is provided to maximize the effect of an outdoor event. CONSTITUTION: A main body(11) is formed by placing a large rear screen(12) on the middle and combining a multi-vision(15) and a small rear screen(16) on the upper ends of the both sides of the large rear screen. Hydraulic cylinders are installed on the corners of the main body respectively to ascends and descends the main body on a vehicle. Doors(31, 33) are installed on both sides of the main body to be opened and closed by hinges(32, 34). A stage(35) is installed to contact with the outer surfaces of the doors and to be opened and closed by a hinge(36). Supporting rods(37) with adjustable heights are joined to the stage.
Patent KR-20000024215-A (KR)
Title: New Pichia sp. KO 103
Inventor: GOH JONG HWAN
IPC: C12N1/20
Filed: 2000-01-29
Abstract: PURPOSE: Provided is novel species, KO 103 of genus Pichia, which has excellent acid resistance, or bile acid resistance, and inhibits growth of pathogen. And a livestock feed additive is also provided which comprises KO 103 of genus Pichia. CONSTITUTION: Provided is novel microbial strain, KO 103 of genus Pichia isolated from maize and fermented food such as cheese. KO 103 is acid-resistant and bile acid-resistant. KO 103 shows 50% of viability after incubation at pH 2.2 of acidic buffer solution for 90 minutes, and can grow at 37°C for 72 hours in YM agar medium containing 1%(w/v) of bile acid. KO 103 is deposited in Korea Research Institute of Bioscience and Biotechnology(KCTC 8981P)
Patent KR-20010077405-A (KR)
Title: Method for Forming Metal Line of Semiconductor Device
Inventor: HAN SANG YEOP
IPC: H01L21/28
Filed: 2000-02-02
Abstract: PURPOSE: A method for manufacturing a metal interconnection of a semiconductor device is provided to reduce manufacturing cost and to improve step coverage, by depositing a TiN layer of a minimum thickness satisfying an electrical characteristic or a diffusion barrier by a chemical vapor deposition(CVD) method, and by depositing the rest of a TiN layer of a required thickness by a conventional physical vapor deposition(PVD) method. CONSTITUTION: An insulation layer is formed on a semiconductor substrate(21). The insulation layer is selectively eliminated to expose the surface of the semiconductor substrate and to form a contact hole. The first metal layer is formed on the entire surface of the semiconductor substrate including the contact hole. The first and second barrier metal layers are sequentially formed on the first metal layer by a chemical vapor deposition(CVD) method and a physical vapor deposition(PVD) method. A metal plug(28a) is formed inside the contact hole. A metal interconnection(29) electrically connected to the semiconductor substrate through the metal plug is formed.
Patent KR-20000036335-A (KR)
Inventor: CHOI SANG JIN
IPC: C12M1/00
Filed: 2000-02-07
Abstract: PURPOSE: An organism culturing device is provided which functions as a mist culture as well as a soaked culture. CONSTITUTION: A device comprises: (i) a culture chamber(7) which is made of transparent glass to make light transmit well and has a lid of culture chamber(3) on the top, where a medium supplying pipe(1), an air supplying pipe(2), a spraying nozzle and an air outlet(6) is connected, and a medium collecting unit comprising an air dispersing plate, an air inflow port, where an air injecting set comprising a check valve, an air filter and a leakage collecting bottle is detachably and attachably connected to, a medium outflow port and a temperature sensing portion; and (ii) a base box(11) which has a medium case(13), a pump(15), an air injector(14) and a timer(12) and supplies medium and air to the culture chamber(7).
Patent KR-20010077780-A (KR)
Title: Question and answer method for learning and computer program therefor
Inventor: LEE SOO SUNG
Filed: 2000-02-08
Abstract: PURPOSE: The catechetical learning method and the computer program product are provided to increase the learning effect by offering the solution of a question and practicing only the missing questions repeatedly. CONSTITUTION: An examinee receives the questions and answer form through an own terminal(S120), fills out the answer form, and transfers to a tester(S130). The tester compares the answer of the examinee with the correct answer, and displays the test result to the examinee in a score(S140). If there is the missing question(S150), the detail solution for the missing question is displayed in order(S160). The tester asks if the examinee takes a retest(S170). If the examinee requests the retest, the questions reorganized only with the missing questions are served to the examinee terminal(S200) and the steps(S130-S170) are performed repeatedly. If there is no missing question or the examinee does not want the retest, the questions, correct answers and solutions are printed and stored according to the request of the examinee(S180,S190,S210).
Patent KR-20010086480-A (KR)
Title: Pallet for loading goods
Inventor: KIM JEONG SIK
IPC: B65D19/04
Filed: 2000-02-14
Abstract: PURPOSE: A pallet for loading articles is provided to assemble and disassemble conveniently by manufacturing a metal pallet, and to use the pallet according to loading articles. CONSTITUTION: A pallet is composed of a base plate(6) having assembling grooves; side plates(8,10,12,14) combining by the assembling grooves; and an auxiliary cover(16) used selectively. The base plate is formed with welding the final panel by inserting panels(36) to a combining groove, and the side plate is formed with pressing and fitting the ends of panels into plural clips of a frame. Right and left side plates are combined with the base plate, and inclined and fixed by a fitting piece and fitting holes. The front and rear plates are combined with the right and left side plates by angles(56,58) in both sides. The side plates are fixed with a locking piece(66) connected to a pin at the side. An assembling protrusion(78) and a piece(68) having perpendicular fitting units are mounted in the upper parts of the side plates. The pallet is assembled and disassembled conveniently, and the productivity is improved. The pallet is used for storing and carrying articles, and for loading the flexible rubber chips by the auxiliary cover.
Patent KR-20010081730-A (KR)
Title: Fabrication of high permeable reverse osmosis membranes
Inventor: CHOI JEONG HWAN
IPC: B01D71/56
Filed: 2000-02-18
Abstract: PURPOSE: A manufacturing method of a high-permeability reverse osmosis separation membrane is provided to improve permeation and exclusion efficiency and permeation speed by using a coating solution mixing technique. CONSTITUTION: A non-porous polyamide film is applied on a porous support membrane. The porous support membrane is pretreated by immersing it in a binder solution containing water-soluble aldehyde compound. After immersing the pretreated support in an aqueous solution containing polyamine, it is treated with an organic solution containing acyl halide compound. Then, it is dried to form a polyamide activated film. This film is post-treated by immersing in a solution containing amine, alcohol or acid compounds.
Patent KR-20010084667-A (KR)
Title: Plasma display panel having seperator sturcture in capable of enhancing the brightness thereof
Inventor: CHOI GYEONG U
IPC: H01J9/24
Filed: 2000-02-28
Abstract: PURPOSE: A barrier rib structure and PDP having such barrier rib structure is provided to achieve an improved luminance by increasing utilization of ultraviolet light, and improved contrast by reducing reflection luminance of the panel. CONSTITUTION: A plasma display panel comprises a plurality of barrier ribs(270,280) arranged onto a lower substrate(250); a plurality of address electrodes arranged between barrier ribs; and a plurality of scanning electrodes(230) and common electrodes(240) arranged to cross address electrodes. A cell is formed by one address electrode, scanning electrode and one common electrode, and a non-discharge space is formed between cells. A plurality of cells with the non-discharge space formed therebetween, constitutes the plasma display panel. An auxiliary barrier rib(300) coated with a fluorescent material is formed in the non-discharge space formed between cells.
Patent KR-20010087506-A (KR)
Inventor: JUNG YEON U
IPC: H01L27/10
Filed: 2000-03-07
Abstract: PURPOSE: A semiconductor memory device is provided to secure a process margin of a capacitor node contact by forming an active region of a curved shape. CONSTITUTION: A field oxide layer(2) is formed on a substrate. A plurality of active region(1) is formed thereon. A gate(3) of a cell transistor passing each active region(1) is formed. A source/drain is formed on the active region(1) of a side of the cell transistor gate(3). An insulating layer is formed on the whole surface of the substrate. A part of the source/drain is exposed by forming a contact hole on the insulating layer. A bit line plug and a capacitor plug contacted with the exposed source/drain are formed. An insulating layer is formed on the whole surface. A contact hole is formed on the insulating layer. The bit line plug of an upper side of the field oxide layer is exposed. A part of the capacitor plug is exposed. A bit line contact contacted with the bit line plug is formed. A capacitor contact contacted with the capacitor plug is formed. A capacitor lower electrode is formed on an upper portion of the capacitor plug.
Patent KR-20010006774-A (KR)
Title: Method and apparatus for implementing automatic cache variable update
Inventor: ANDERSON CLARK ALAN
IPC: G06F12/08
Filed: 2000-03-10
Abstract: PURPOSE: An apparatus for implementing automatic cache variable update is provided to reduce a software overhead generating upon start or end of data transmission and data integrity exposures by a realtime-overwritten variable. CONSTITUTION: A cache variable update hardware maintains a plurality of variables indicative of a data segment in the cache. The plurality of variables include a segment state variable, a segment starting address variable, a segment length variable and a segment offset variable. The cache variable update hardware monitors the cache to identify a selection of a segment for a data transfer to and from the cache and to identify data transfers. The plurality of variables are initialized responsive to an identified cache search. The segment length variable is incremented responsive to a data block written to the cache. The segment state variable is modified responsive to a data transfer complete.
Patent KR-20000036445-A (KR)
Inventor: SHIN BUM SOO
IPC: H04N7/18
Filed: 2000-03-14
Abstract: PURPOSE: A television automatic remote control system using a television output signal(1) and a door camera output signal(5) is provided to user an electrode instead of a 4 inch monitor(2) for a user convenience. CONSTITUTION: A television automatic remote control system using a television output signal(1) and a door camera output signal(5) includes a television(20), a door camera(4), an automatic switching circuit system(22), and an automatic wireless remote control system(24). The automatic switching circuit system operates according to the audio and video output signals of the television and an output signal of the door camera. The automatic wireless remote control system according to the output of the automatic switching circuit system. The power and channel of the television are automatically to the door camera.
Patent KR-20000062960-A (KR)
IPC: H01L21/205
Filed: 2000-03-20
Abstract: 반도체 제조에 사용되는 NF 3 와 같은 정화 가스 분해 장치는 마이크로파 에너지가 인가되는 마이크로파 공명기를 둘러싸고 있는 하우징과, 이러한 하우징 내에 배치되고 정화 가스가 유동하고 마이크로파 에너지에 의해 분해되는 플라즈마관을 포함하고 있다.  플라즈마관은 정화 가스가 유입되고 배출되는 두 개의 단부를 갖추고 있다.  제 1 및 제 2구조적 조립체는 대기 누출에 대항하여 플라즈마관의 각각의 단부를 열적으로 보호하고 밀봉한다.  각각의 구조적 조립체는 금속 칼라 및 플라즈마관의 각각의 단부 둘레에 견고하게 끼워맞춤되는 밀봉 O-링을 갖추고 있다.  플라즈마관의 단부로부터 배출된 열이 금속 칼라를 통해 전도되도록 각각의 금속 칼라는 높은 열전도도를 갖는 탄성 재료로 제조된 얇은 층을 포함하며, 이에 의해 O-링이 열손상으로부터 보호된다.  이는 장치의 보다 효율적인 작동을 보장한다.  팬은 장치 위에서 대기 공기를 가한다.
Patent KR-20000030859-A (KR)
Inventor: LEE HYEON SAM
IPC: E02D3/02
Filed: 2000-03-22
Abstract: PURPOSE: A method for constructing a weak ground using a waste tire mat is provided to reduce the cost according to a processing of waste, to reduce the generation of pollution, to effectively exhaust the water and not to generate the damage of the ground by dispersing and controlling a force between a upper load and a supporting force of the ground by constructing the waste tire mat. CONSTITUTION: A net-structural waste tire mat(20) having a dense space portion(5) is composed by repeating a process to combine by the insertion of many waste tire strips(10) crosswise and lengthwise, and the both ends of the waste tire mat(20) is finished by connecting one or two control member of intervals(26) as occasion commands. The width of the waste tire mat(20) is changed according to the width of a ground to be installed and the space portion(5) is composed more densely by connecting the waste tire strip(20) combined lengthwise one by one. Therefore a constructing method of soft ground using the waste tire mat comprises the following steps of: laying the net-structural waste tire mat(20) formed the space portion(5) densely on the weak ground by continuously connecting the one or two waste tire strips(10) crosswise and lengthwise; laminating a gravel thereon; forming a stable constructing structure by burying a sand thereon then performing a filling construction. Thereby the earth of the soft ground(1) and the filled earth are not mixed each other and the water is effectively exhausted.
Patent KR-20000030882-A (KR)
Inventor: LEE CHUL HO
IPC: G06F17/00
Filed: 2000-03-23
Abstract: PURPOSE: A method and a system for automatically extracting destination of user's input data and transmission of the data are provided to automatically transmit users' opinion or queries input through internet to corresponding institutes by electronic mailing system after automatic classification according to word searching process, thereby promoting efficient and flexible management of the corresponding institutes. CONSTITUTION: A data is received at a server system part by a client system part connected to the internet. The received data is automatically classified and such a classified data is forwarded to a web server of corresponding institute by an electronic mailing system. A response to the message forwarded to the corresponding institute is fed back to the client by the electronic mailing system. As for the data received by the client system part, information is generated and stored in a knowledge base part by the morpheme analysis process. In the knowledge base part, words commonly used per corresponding institutes are classified by a classification engine.
Patent KR-20010014723-A (KR)
Inventor: PLANCA RINALDO
IPC: B01F35/60
Filed: 2000-04-12
Abstract: PURPOSE: A removable blade support system used in a blender, food processors, and the other similar home appliance is provided to improve the sealing property thereof, and to allow a blade support assembly to be easily separated. CONSTITUTION: The removable blade support system used in a blender, food processors, and the other similar home appliance comprises a jug(0) fitted with a button(3); a belt(11) having one or more lock part(7'); a spring part integrated with the belt; and a tweezers having a lock part on the end portion. A connecting device is provided between the tweezers, the button, and the spring part. The jug has a flange(14) surrounding the inner side thereof. Also, a device for attaching and removing a blade support assembly(2) is provided in the jug.
Patent KR-20000071659-A (KR)
Title: 감압된 환경으로 충전된 입자 비임 리소그래피 시스템내의 탄소 오염인자를 제거하기 위한 방법 및 장치
IPC: G03F1/08
Filed: 2000-04-12
Abstract: 충전된 입자 비임 리소그래피 시스템을 이용하기 위한 세정 시스템이 기술되어 있다.  세정 시스템은 리소그래피 시스템의 화상 챔버 내부로 산화제를 도입시키는 산화제 공급원 및 산화제 분포 기구를 포함한다.  산화제는 화상 챔버 내에서 필요한 감압을 유지시키는 유량 및 압력에서 챔버 내부로 펌핑된다.  산화제는 화상 챔버 내에, 또는 화상 마스크 등의 챔버 내의 부품 상에 존재하는 탄소 오염인자를 산화시키기도록 작동된다.  휘발 산화된 탄소 가스는 탄소 오염인자의 산화에 의해 생성된다.  산화된 탄소 가스는 화상 챔버 밖으로 펌핑되어 챔버로부터 오염인자를 제거시킨다.
Patent KR-20010096852-A (KR)
Filed: 2000-04-15
Abstract: 본 발명은 분자량이 188~4,000인 폴리옥시에틸렌 글리콜들(PEGs) 또는 폴리옥시프로필렌 글리콜들의 단편에 연결되거나 또는 연결되지 않은, 분자량이 500~15,000인 폴리카프로락톤(PCL) 단편들을 포함한 폴리카프로락톤(PCL) 유도체들을 포함하는 것을 특징으로 하는 폴리비닐 클로라이드(PVC)를 기초로 한 폴리머성 물질에 관한 것으로, 상기 물질은 다음의 일반식으로 정의될 수 있다: 
     
       
     
     여기에서: 
     - n은 4~135의 수; 
     - z는 5~300의 수; 
     - r은 200~20,000의 수이다.
Patent KR-20000049961-A (KR)
Inventor: YU JAE CHEON
IPC: G06F15/00
Filed: 2000-05-09
Abstract: PURPOSE: A method for digitally broadcasting music is provided to digitally broadcast music by receiving various music files to classify the files into categories to store the files, and by extracting the stored music files to replay the files by fading in/out intervals of the replayed music, when a user selects the music. CONSTITUTION: A music broadcasting server and a music broadcasting terminal are connected to each other through the internet in a system. A method for digitally broadcasting music in the system, comprises the steps of: making a server manufacture music files including previously-classified identifiers; making the server transmit the files to the terminal; making the terminal receive the files to store; if a user selects a classification, extracting a file included in the classification among the music files; and replaying the extracted file. The step of replaying the file comprises the steps of: extracting a first song, canceling a compression of the first song, replaying the file, and fading out an end part of the first song; extracting a second song while replaying the first song, canceling a compression of the second song, fading in an introduction of the second song; and repeating a step of overlapping the end part of the first song and the introduction of the second song up to an n-th song.
Patent KR-20010104576-A (KR)
Inventor: CHOI BYEONG DO
Filed: 2000-05-15
Abstract: 본 발명은 OSD기능이 구현되지 않은 영상 표시 기기에서 여러 가지 사용자 제어기능을 제공함에 있어서, 조정하고자 선택한 제어기능 항목을 표시(지시)하고자 하는 영상 표시 기기의 사용자 제어기능 표시장치에 관한 것이다. 
     종래에는 OSD기능이 없는 영상 표시 기기 특히, 모니터에서 여러 가지 사용자 제어 기능을 수행함에 있어 해당하는 기능들의 개수만큼 LED로 표시하여야 함으로써 상대적으로 고가인 LED에 의해 기기의 경제성이 저하되었다. 
     이에 본 발명에서는 LED 표시부에 LED 제어회로를 구성하고 모니터의 전면 패널에는 사용자 제어기능을 두 그룹으로 분류하여, 하나의 LED가 그룹별 각 하나씩의 제어기능을 지시할 수 있도록 각 그룹간 LED 점등방법을 달리 제어함으로써 LED의 개수를 줄여서 사용자 제어기능의 절반의 개수에 해당하는 LED만을 사용, 사용자 제어 기능을 모두 표현 가능하게 하였다.
Patent KR-20010039646-A (KR)
Title: Lithographic projection method
Inventor: KUIT JAN JAAP
IPC: H01L21/027
Filed: 2000-06-07
Abstract: PURPOSE: A lithography projection method are provided, to allow the multi-stage mask exposure for the productivity of an extremely large machine by allowing the target section of the first set of a substrate to be irradiated with the image of a first mask, and then allowing the target section of its second set to be irradiated with the image from a second mask. CONSTITUTION: A first mask(MA-1) is provided on a mask table(MT), and the pattern on a mask is exposed on a target section(C) on a first substrate(W-1), where a resist is coated by a projection system(PL). The exposed substrate(W-1) is transported to a storage device(CA), and a second substrate(W-2) is provided on a substrate table(WT). The second substrate(W-2) is, after the exposure, transported to the storage device, and a third substrate(W-3) is provided on the substrate table(WT). This procedure is repeated until an N-th substrate(W-N) among N substrates is exposed. When the N-th substrate is removed from the substrate table(WT), the mask MA-1 is replaced with a mask(MA-2).