baber/WOPTO huggingface dataset:
Patent KR-20010077136-A (KR)
Title: Apparatus and method for reproducing a still video signal in digital video recorder
Inventor: CHOI SEOK YEONG
IPC: G11B15/52
Filed: 2000-01-31
Abstract: PURPOSE: A device and a method for outputting still images are provided to display the still images corresponding to an image signal recorded on a tape recording medium while transferring the tape at a high speed in a high speed playback mode. CONSTITUTION: A head(1) reads and records signals on a videotape. A pre-amplifier(2) pre-amplifies the signal. An error correction unit(3) corrects error in the signal. A digital reproducing signal process unit(4) processes the signal for outputting as a transport stream. A digital recording signal process unit(5) outputs the transport stream to the pre-amplifier. A still frame recognize information generate/detect unit(8) detects still frame recognize information from the transport stream while outputting the still frame recognize information to the digital recording signal process unit. A memory stores the transport stream for each frame. A microcomputer(7) controls components according to input keys from a user.
Patent KR-20010084492-A (KR)
Title: Method for payment of credit-card through mobile phone in electric commerce based on internet
Inventor: BAE SEONG CHAE
IPC: H04W4/00
Filed: 2000-02-26
Abstract: PURPOSE: A method for settling electronic commerce of an Internet base using a mobile telephone is provided to increase the reliability of settlement and easily pay the price by inputting a password of a credit card without holding the credit card. CONSTITUTION: A credit card holder connects to an Internet electronic commerce home page and inputs only a credit card number and a mobile telephone number when credit card holder settles the credit card to purchase goods. The data is transmitted to a main server(20) of a company establishing the Internet electronic commerce home page via an Internet(200). The data except the credit card number and settlement money is transmitted to a settling main server(30) of a bank or a credit card company. The settling main server(30) dials to a communication base station to make a telephone call to the user. The credit card holder inputs a password of the credit card and settlement money by using a key pad(K) of a mobile telephone(50). The settling server receives the data and judges the validity and the credit status of the credit card for reporting the result to the main server(20).
Patent KR-20000030428-A (KR)
Inventor: PARK JEONG HEE
IPC: G03G15/23
Filed: 2000-02-29
Abstract: PURPOSE: A double transferring apparatus is to provide upper and lower heating plates and compensate heat loss in an edge portion of the heating plates, thereby allowing the double transferring and increasing a transferring quality. CONSTITUTION: A double transferring apparatus(2) comprises: an upper heating plate(20) mounted on a vertical member which is risen and fallen by an air cylinder(16); a lower heating plate(22) disposed at a lower portion of the transferring apparatus; a working die horizontally disposed at both sides of the lower heating plate; and a conveying unit(14) which is disposed on the working die and conveys a transferring paper(18) and an article to be transferred. The upper and lower heating plates are respectively formed with a center heating portion and an edge heating portion. The edge heating portion has a higher heating temperature than the center heating portion.
Patent KR-20010085127-A (KR)
Title: Permanent air moter
Inventor: SUNG SAM PYO
IPC: H02K53/00
Filed: 2000-02-28
Abstract: PURPOSE: A permanent air motor is provided to permanently supply the energy with one injection of the air using the difference between vertical movement and the horizontal movement. CONSTITUTION: The permanent air motor comprises a shaft(4) and three cylinders(1,2,3) placed around the shaft. The forces of the force points(A,B) and the force point(D) are equally applied to the force point(C), thus each cylinder moves its pressurized direction. The cylinder(3) and the cylinder rod(6) and the cylinder(1) have the same forward movement force around the force point(C). Then the center of the force(C) applies the force to the shaft. At the same time, the rod(5) applies the force to the force point(F) and the rod(7) applies the force to the force point(E). The force of the rod(7) is used as energy except friction loss of the cylinder(2) according to the vertical movement and horizontal movement.
Patent KR-20010092504-A (KR)
Title: Method and apparatus for broadcasting in two line internet
Inventor: HWANG DU GI
IPC: G06F17/00
Filed: 2000-03-22
Abstract: PURPOSE: An apparatus and a method for bidirectional internet broadcasting are provided to transmit uniform broadcasting program information in a time for which an Internet broadcasting company wishes by a broadcasting program transmission server. CONSTITUTION: An Internet broadcasting station(120) manufactures a uniform broadcasting program and transmits the manufactured uniform broadcasting program to first to nth televiewers(100-1,...,100-n). A database(122) stores various broadcasting program information manufactured in the Internet broadcasting station(120). A stream server(112) of an internet broadcasting server(110) transmits broadcasting contents manufactured in the internet broadcasting station(120) to the first to nth televiewers(100-1,...,100-n). A broadcasting interface transmission server(114) of the Internet broadcasting server(110) provides a uniform program manufactured for televiewer participation in the Internet broadcasting station(120) to the first to nth televiewers(100-1,...,100-n) at real time in a time for which the Internet broadcasting station(120) wishes. A televiewer input information processing server(124) receives responses of the first to nth televiewers(100-1,...,100-n) by a televiewer participation program provided through the broadcasting interface transmission server(114).
Patent KR-20010095480-A (KR)
Title: Exhaust system for semiconductor fabrication equipment
Inventor: LEE GI SEONG
IPC: H01L21/02
Filed: 2000-03-30
Abstract: PURPOSE: An exhaust system of semiconductor manufacturing equipment is provided to remove efficiently a virulent gas generated from a semiconductor manufacturing process by using a heater, a filter, and a container. CONSTITUTION: A gas in valve(6) and an air supply nozzle(4) are used for mixing a virulent gas and air. A bypass valve(7) is used for bypassing the virulent gas when the gas in valve(6) is closed by trouble of an exhaust system. A heater(11) heats the mixture of the virulent gas and the air. The virulent gas is changed into powder by heating the mixture of the virulent gas and the air. The first container(12) is installed at a lower portion of the heater(11) in order to collect the powder of large size. The residual powder and the residual virulent gas are filtered by a filter(2). The powder adhered to the filter(2) is separated from the filter(2) by a rotary brush(16). The separated powder is fallen into the second container(13). A door for removing powder(14) is formed in the second container(13) in order to remove the powder.
Patent KR-20010093961-A (KR)
Inventor: HA JAE HUN
IPC: A47B77/00
Filed: 2000-04-03
Abstract: PURPOSE: A position adjustment system of a duster case for a sink or a dish washer is provided to align each duster case by changing the mounting position of the duster cases under a sink or a dish washer and to support the dust cases firmly against head-on collision. CONSTITUTION: A position adjustment system includes a movable bracket(10) moving in a straight line back and forth of a dish washer(1), an adjustment member(20) moving the movable bracket, and a holder(30) for guiding the movable bracket with supporting the adjustment member. The movable bracket has an end coupled with a duster case(6) and the other end contacted with the lower surface of the dish washer. A driven groove(11) is formed lengthwise under the movable bracket. The adjustment member has an end forming a threaded portion(21) connected with the driven groove of the movable bracket. A neck part(22) is formed at the tip of the threaded portion to be joined with the holder. The holder has connecting surfaces(31) at both sides to be combined with the lower surface of the dish washer. A couple of guide sills(32) are formed between the connecting surfaces, corresponding to the width of the movable bracket. A connecting groove(33) is formed between the guide sills to be coupled with the neck portion of the adjustment member. The movable bracket supports a gap between the duster case and the dish washer to prevent the duster case from being damaged by the empty space between the dish washer and the duster case.
Patent KR-20010094255-A (KR)
Title: Molten steel ladle car and slag pot car combined double car and using thereof tapping process of converter
Inventor: KIM HAE WON
IPC: C21C1/06
Filed: 2000-04-06
Abstract: PURPOSE: A double transfer car integrally equipped with a molten steel transfer car and a slag transfer car is provided to obtain cleanliness of molten steel by minimizing outflow of slag through a tapping hole during tapping working of a converter, and a method for tapping the converter using the same is provided to remarkably decrease fatigues of a worker by eliminating manual working and improve productivity by shortening slag discharge working process after the tapping working. CONSTITUTION: The double transfer car integrally equipped with a molten steel transfer car and a slag transfer car is characterized in that the molten steel transfer car having a resting groove for resting a molten steel ladle(9) and the slag transfer car having a resting groove for resting a slag port(18) are integrally formed, wherein the molten steel transfer car and the slag transfer car are formed with correspondingly spaced apart from a distance separated between the furnace mouth(6) formed on a converter(5) and the tapping hole(7). The method for tapping a converter using a double transfer car comprises the steps of preparing the double transfer car(60) equipped with the molten steel ladle(9) and the slag port so that molten steel(U) and slag(S) are simultaneously stored after refining the molten steel in the converter; tapping the molten steel into the molten steel ladle rested on the double transfer car through the tapping hole and discharging overflown slag into the slag port through the furnace mouth of the converter; preventing vortex and overflow of the slag by consistently tilting the converter in a certain constant degree of angle; and simultaneously transferring the double transfer car to a subsequent process and returning to the waiting phase for the next tapping working.
Patent KR-20010095767-A (KR)
Title: Jiggle valve of thermostat
Inventor: OH CHANG SEOK
IPC: F16K13/00
Filed: 2000-04-12
Abstract: PURPOSE: A jiggle valve for a vehicle thermostat is provided to automatically operate the jiggle valve by the buoyancy of cooling water and pressure in a cooling water channel for effectively removing air generated in the cooling water channel and effectively control the cooling water flowing to a radiator in case of engine warmup. CONSTITUTION: A jiggle valve for a vehicle thermostat includes an eccentric connection rod(23) to be inserted into an insertion hole(16) formed at a lower part of an outflow hole(15) formed for passing air and cooling water at an upper part of a valve element(13) of a thermostat, and first and second floats(21,22) formed at both ends of the eccentric connection rod for supporting the eccentric connection rod eccentrically, so that the floats rotate upwardly when the cooling water is introduced via a cooling water channel for automatically closing the outflow hole, wherein the eccentric connection rod is a length larger than a thickness of the valve element, and the first and second floats are formed hemispherically, respectively having a plane surface(21b,22b) contacting the outflow hole.
Patent KR-20000077031-A (KR)
Title: 모터 냉각 및 흡음 장치
IPC: H02K5/24
Filed: 2000-04-17
Abstract: 모터를 냉각시키고 소음을 흡수하는 장치로서, 모터(11) 주위에 챔버(13)를 형성하는 하우징(10)을 구비한다.  모터(11)의 샤프트(12)에는 폼 블록(35) 안의 요부(36)로 형성되는 챔버(38) 내에 위치하는 팬(40)이 장착된다.  팬(40)은 공기를 하우징(10) 내의 흡입 구멍(33)을 통해서 챔버(13) 내로 흡인하며, 이 흡인된 공기는 모터(11)를 통과함으로써  상기 모터를 냉각시킨다.  공기는 폼 블록(35)의 요부(36)의 각진 면(37)에 대해 일반적으로 반경 방향으로 팬(40)을 빠져나간다.  다음으로 공기는 각진 면(37)과 폼 블록(35) 위쪽에 위치하는 초크 판(19)의 각진 면(42)으로 획정되는 디퓨저 통로(41)에 수용된다.  디퓨저 통로(41)는 공기의 속도를 감소시켜 폼 블록(35)이 공기가 발생시키는 소음을 잘 흡수하도록 돕고, 동시에 팬(40)에서 빠져나오는 공기의 압력을 감소시켜 모터(11)를 통과한 냉각 공기의 흐름을 증가시킨다.  그러면 공기는 디퓨저 통로(41)를 통과해서 폼 블록(35) 위쪽에 위치하는 플레넘 챔버(43)로 이동하며, 하우징(10)의 저부에 형성되는 길이 방향 슬롯(26)을 통해 배출된다.
Patent KR-20010096207-A (KR)
Inventor: YUN YOUNG JUNG
IPC: A01G9/02
Filed: 2000-04-17
Abstract: PURPOSE: A tree planting block for landscape is provided in which landscape construction is easy, a withering and death rate is lowered during the initial landscape, and safety accident and collapse of a tree are prevented by moving and installing the block itself as it is together with the tree if needed while growing the nursery tree after putting soil and planting a nursery tree into a block at a specific place. CONSTITUTION: The tree planting block for landscape is characterized in that a rectangular housing type block(1) the upper part of which is opened is formed so that the rectangular housing type block(1) has enough space part(2) to contain a certain amount of soil(5) and planting trees(6), wherein a plurality of drainage holes(3) are formed at the surrounding surfaces and the bottom surface of the block(1), an integrally bending shaped handle(4) is additionally installed inside the block(1), the block(1) is injection molded by using a synthetic resin material, and wherein the block(1) is molded by using a waste synthetic fiber and a waste synthetic resin.
Patent KR-20010097434-A (KR)
Inventor: KIM HONG SEONG
IPC: G01W1/18
Filed: 2000-04-22
Abstract: 본 발명은 휴대용 우량계 검교정기기에 관한 것으로, 강우량 단위(mm)의 눈금이 상부 및 하부로부터 각각 표기되어 내부에 저장된 물의 배출량과 잔존량을 동시에 확인할 수 있는 수조(13)와, 이 수조의 하부에 연결되는 배출호스(14)와, 이 배출호스에 설치되어 배출되는 강우량을 임의로 설정할 수 있는 우량조절밸브(15)와, 이 우량조절밸브의 상부에 설치되는 개폐밸브(16)로 이루어진 강우량 조절기(10)와;  이 강우량 조절기를 거치하기 위하여 상단에 수조가 고정되는 거치대(20)와;  이 거치대에 고정된 강우량 조절기 하부에 설치되는 검사용 우량계의 티핑 버켓에 따라 발생하는 접점신호를 카운트하여 우량을 계산하는 디지털 카운터(30)와;  강우량 조절기와 거치대 및 디지털 카운터를 보관하고 운반하기 위한 운반가방(40)을 포함하며, 디지털 카운터는 우량계의 2개의 접점의 불균형에 의한 측정에러를 수정하기 위하여 접점시간을 측정하는 타이머를 포함하다.
Patent KR-20010098175-A (KR)
Inventor: JUNG SIN GYUN
IPC: B60T3/00
Filed: 2000-04-28
Abstract: 본 발명은 마찰력과 충격에 대한 완충능력이 좋은 고무를 받침대의 재질로 사용하되 상기 받침대의 내부에 인성과 내충격성을 강화하기 위해 와이어매쉬와 섬유질을 형성한 고하중 물체용 받침대를 제공하기 위한 것으로, 따라서 본 발명은 종래 나무재질의 받침대와는 달리 엄청난 고하중에도 견딜 수 있는 인성을 가지며, 또한 수직하중 및 충격에도 잘 견디고, 마찰력이 커 코일과 받침대 사이의 유격을 방지할 수 있게 되어 사고발생 우려를 현저히 줄일 수 있으며, 또한 내구성이 좋아 거의 반영구적으로 사용할 수 있어 경제적이며, 나무받침대를 대체하게 됨으로써 자연보호 측면에서도 매우 유용한 효과를 갖는다. 
     또한 손잡이를 형성하므로 써 사용의 편리성을 도모하였고, 받침대의 표면에 벨크로천을 구비하는 면포를 형성하므로 써 코일의 포장용지의 파손을 방지할 수도 있는 매우 유용한 발명인 것이다.
Patent KR-20010020813-A (KR)
Title: Method for operating semiconductor memory device and semiconductor memory device
Inventor: SUZUKI TAKAAKI
IPC: G11C11/401
Filed: 2000-05-04
Abstract: PURPOSE: A method is provided to keep a high speed operation cycle by reducing the number of terminals required for command input and the number of terminals required for address input in a method for controlling the operation of a semiconductor memory provided with a plurality of operation modes and in a semiconductor memory provided with a plurality of operation modes. CONSTITUTION: Signals supplied from prescribed terminals are taken in as commands a plurality of times, operation modes are successively narrowed down on the basis of the commands, and an internal circuit is controlled conforming to narrowed down operation modes. As information required for decision of an operation mode are taken in a plurality of times and an operation modes are narrowed down the number of terminals required for command input is reduced. Especially when a terminal for exclusive use for command input is provided, an input pad, circuits such as an input circuit and the like are made unnecessary, and chip size is reduced.
Patent KR-20010103902-A (KR)
Inventor: BAE GI CHEOL
Filed: 2000-05-10
Abstract: 본 발명은 차량용 브레이크의 마스터 실린더에 관한 것으로, 실린더 보디를 두 개의 실린더부로 분할하여 나란히 배열함으로써 실린더 보디가 비틀림 하중에 의해 하부로 휘어지는 것을 방지하여 진직도 불량에 따른 컵씰 및 피스톤 등의 마모를 최소화할 수 있도록 하고, 또한 실린더 보디의 길이를 최대한 짧은 구조로 형성함과 동시에 전체 구조를 단순화시킴으로써 항상 일정 제동력을 전륜과 후륜에 제공할 수 있도록 하며 엔진룸내부의 공간을 확보할 수 있고 주변 부품과의 간섭을 최대한 방지할 수 있도록 하는 것이다.
Patent KR-20010107116-A (KR)
Inventor: CHO SANG PIL
IPC: H01G13/00
Filed: 2000-05-25
Abstract: 탄탈 고체전해캐패시터를 제조하기 위하여 탄탈소자에 고분자층을 형성시키는 탄탈 고체 전해캐패시터의 고분자층 형성장치가 개시되어 있다. 탄탈 고체 전해캐패시터에 고분자층을 형성시키기 위하여 탄탈소자에 전해중합을 실시한다. 상기 탄탈소자를 전해중합시키기 위하여 고분자 전해질 수용액이 담겨져 있는 수조에는 음극을 인가하고, 수조의 전해질 수용액에 함침되어 있는 지지플레이트에는 양극을 인가한다. 상기 지지플레이트에는 스프링에 의해 완충동작을 하는 접촉로드가 다수개가 착설되며, 상기 접촉로드는 각각 탄탈소자의 저면에 접촉되어 탄탈소자가 전해중합을 하도록 한다. 상기 탄탈소자에는 접촉로드를 통해 양극이 인가되므로 전해중합이 발생하여 탄탈소자에는 고분자층이 형성된다.
Patent KR-20010020925-A (KR)
Title: Nozzle Airfoil Having Movable Nozzle Ribs
Inventor: YU YUFENG PHILLIP
IPC: F01D9/02
Filed: 2000-05-30
Abstract: PURPOSE: A nozzle stator vane and a nozzle aerofoil are provided to minimize stress generated by a material temperature mismatching between a nozzle or an external wall of an aerofoil of a stator vane and a rib for supporting. CONSTITUTION: The rib(112) is coupled with both side walls so as to impart mechanical support required between a recessed side wall and a projecting side wall of the aerofoil(110) and is not fixed in a radial direction of a nozzle assembly, that is, a longitudinal direction of the aerofoil(110). By fitting the rib(112) on aerofoil metal so as to provide play in the longitudinal direction of the aerofoil(110), radial direction thermal stress in a coupling area of the aerofoil(110) and the rib(112) generated by a temperature difference is reduced and a proper mechanical support of a nozzle side wall is maintained.
Patent KR-20010110856-A (KR)
Title: 자궁경부암 항암제 및 세포사멸조절인자 검색방법
Inventor: CHO JEONG WON
Filed: 2000-06-08
Abstract: 본 발명은 자궁경부암 항암제 및 세포사멸조절인자 검색방법에 관한 것으로 본 발명은 형질전환된 대장균 BL21/pET28a-E6( E.coli BL21/pET28a-E6) KCTC 18015P를 이용하여 자궁경부암을 유발하는 사람 파필로마바이러스 16형의 E6 단백질(His-16 E6)을 대량 발현시키고 발현된 가용성 His-16 E6 단백질을 니켈 비드를 이용하여 정제한 후, 유비퀴틴(ubiquitin) 반응에 관여하는 E6-결합 단백질(E6-associated protein;E6AP)의 가용성 분획간의 결합을 in vitro 에서 웨스턴 블랏팅법과 엘라이자 (ELISA)법으로 확인함으로써 E6-E6AP in vitro 결합능 검색 시스템을 수립하는 뛰어난 효과가 있으며 상기 검색 시스템으로 E6-E6AP 결합을 경쟁적으로 저해할 수 있는 합성펩타이드들의 선별 및 변형, 세포사멸조절인자의 탐색 및 E6-p53 결합구조에 기초하여 디자인된 합성 항암제를 스크리닝할 수 있는 뛰어난 효과가 있다.
Patent KR-20010111930-A (KR)
Inventor: CHOI MUN HO
Filed: 2000-06-14
Abstract: 본 발명은 ATM, ADSL 시스템 및 먹스 통신 장비에 사용되는 DSLAM 시스템의 프로그래머블 콘트롤러(Programmable Controller)에 의한 DSLB보드 제어장치에 관한 것으로, HAMX-2000시스템에 있어서 CPU, 부팅 ROM, DRAM 및 주변 로직을 사용하지 않고 간단히 프로그래머블 콘트롤러를 사용하여 원가를 절감할 수 있도록 한 것이다. 
     본 발명은 상태/제어 레지스터부, CDB부, 먹스부, 셀 버스 인터페이스와 연결되는 큐빗부를 포함하여 구성되는 DSLB보드에 있어서, 파우어 온 상태에서 제어신호의 버스 오퍼레이션 명령을 받고 DSLB보드를 초기화하기 위한 데이터를 제공하는 이이피롬부와, 상기 상태/제어 레지스터부, CDB부, 먹스부, 큐빗부의 데이터를 읽어 상기 이이피롬부의 정해진 위치에 라이트 사이클을 수행하고, 인터럽트 요청에 따라 이이피롬부의 데이터를 읽어 해당 부품에 라이트 사이클을 수행하는 제어신호 처리부를 더 포함하여 이루어진 것이다.
Patent KR-20020002074-A (KR)
Title: Method for making protocol Data Unit in Split Mode
Inventor: LEE SEUNG JUN
IPC: H04L12/56
Filed: 2000-06-29
Abstract: PURPOSE: A protocol data unit generating method of a split mode is provided to reduce an error probability by transmitting the most important sequence number of a protocol data unit through a different channel from other channel transmitting other portion by transmitting a radio link control protocol data unit by using a split mode. CONSTITUTION: In order to generate a protocol data unit from at least more than one service data unit transmitted from an upper layer in a radio link control layer, a payload unit is generated by splitting or connecting at least more than one service data unit, a protocol data unit including a sequence number corresponding to the payload unit and a protocol data unit including the payload unit are generated, and a radio link control header is attached to each of the generated protocol data units and transmitted to a medium access control layer. If the radio link control is set up in a non-recognizing mode, the protocol data unit including the sequence number includes a sequence number field and an extension field. If the radio link control is set up in a recognizing mode, the protocol data unit includes a data/control field, a polling field and an extensive header field besides the sequence number field and the extension field.
Patent KR-20020002650-A (KR)
Title: System and method of comparing a purchasing price for internet shoppers
Inventor: KIM YONG SU
Filed: 2000-06-30
Abstract: PURPOSE: A system and a method for comparing a final purchasing price of an individual for an Internet shopping are provided to enjoy an electronic commerce in a favorite condition by providing final price information for commodity sales, wherein the final price information includes a delivery charge and a financial expense. CONSTITUTION: A shopping agent server(100) is connected with an Internet user(170) and shopping mall enterprises(180) through a network such as the Internet(160), a PSTN(Public Switched Telephone Network), a mobile communication network, and a cable television network. A member database(120) stores purchaser information including a member ID(Identification), a member address, a delivery address, and a payment method. A commodity database(110) stores a commodity list and sales price of a shopping mall where sells commodities enrolled in the list. A shopping mall database(130) stores incidental expenses including a delivery price, a credit card fee, and an installment fee. The shopping agent server(100) receives the information for the commodity list, the commodity sales price, and the incidental expenses from the connected shopping malls(180) and updates the database(110,130) corresponding to the information.
Patent KR-20020006164-A (KR)
Title: Method for extracting linear predictive coding coefficients through lattice method in vocal track encoding
Inventor: LEE SEONG JU
IPC: G10L19/08
Filed: 2000-07-11
Abstract: PURPOSE: A method of extracting a fixed point linear prediction coding coefficient using lattice method in the event of coding of a voice signal is provided to prevent generation of operation error due to error accumulation caused by repeated operations when a fixed point is realized. CONSTITUTION: A prediction error signal and a backward prediction error signal are initialized using an original voice signal(ST11). A partial correlation(PARCOR) coefficient is obtained using the prediction error signal and the backward prediction error signal(ST12). The prediction error signal and the backward prediction error signal are estimated using the PARCOR coefficient(ST13). The function that the PARCOR coefficient is estimated using the prediction error signal and the backward prediction error signal and the prediction error signal and the backward prediction error signal are estimated using the PARCOR coefficient is repeatedly carried out(ST14), to extract a linear predictive coding coefficient(ST15).
Patent KR-20020007043-A (KR)
Inventor: HONG SEONG JU
IPC: B01D39/04
Filed: 2000-07-14
Abstract: PURPOSE: A gas filter that is manufactured with ultra-fine yarn is provided to effectively capture fine particulates emitted from dust sources such as chemical, steelmaking and cement industries with decreased pressure loss. CONSTITUTION: After polyester staple fiber with a fineness of 0.7 to 6 denier is processed into web by conventional manufacture method for nonwoven fabric, it is pre-punched for dimension stability. This pre-punched web is main-punched on one side of a polyester fabric matrix that is woven with a polyester yarn (250-1300denier). In addition, after a divisional staple fiber with a fineness of 2 to 3 denier is processed into web by conventional manufacture method for nonwoven fabric, it is pre-punched for dimension stability. Then, it is main-punched on the other side of the polyester fabric matrix.