baber/WOPTO huggingface dataset:
Patent KR-20000034773-A (KR)
Title: Scroll type fluid machine
Inventor: KUROIWA HIROYUKI
IPC: F04C18/02
Filed: 1997-06-11
Abstract: PURPOSE: A scroll type fluid machine is provided which is used as refrigerant compressor of an air conditioner or freezer and has a bypass hole construction for capacity control. CONSTITUTION: A scroll type fluid machine comprises a first scroll(1) having a first spiral blade(12), and a second scroll(2) having a second spiral blade(22). A first fluid working chamber(A) is defined between an inner surface of the first spiral blade(12) and an outer surface of the second spiral blade(22), and a second fluid working chamber(B) is defined between an outer surface of the first spiral blade and an inner surface of the second spiral blade. A spiral end(le) of the first spiral blade is extended so as to have the first fluid working chamber(A) and the second fluid working chamber(B) open and close with respect to a single low pressure port(3). A common bypass hole(4) is provided which allows the first and second fluid working chambers(A,B) to commonly communicate with the low pressure port(3).
Patent KR-20000016002-A (KR)
Title: Complex roll for rolling steel tape of thin cold rolling and production method thereof
Inventor: SONOBE OSAMU
IPC: B21B27/03
Filed: 1998-03-19
Abstract: PURPOSE: A complex roll is provided to produce a stainless cold rolled steel tape and a bright finishing steel tape or a silicon steel tape having excellent surface luster and also having small edge drop. CONSTITUTION: A production method of a complex roll has the steps of:previously integrally forming plural forming members divided on the face crossed with a central axis of a roll or an integration type forming body member; making the sleeve material of the most outside layer with super hard alloy of WC-Co class of 12¯15wt% of Co containing amount, having more than 35000kgf/mm¬2 of Young's modulus.
Patent KR-20000016650-A (KR)
Title: Pill dispenser
Inventor: KAROLLIN CLARINS
IPC: B65D83/04
Filed: 1997-06-11
Abstract: PURPOSE: A pill dispenser is provided to has a circular guide route that forms more than one notch and more than one tooth for the notch. CONSTITUTION: A pill dispenser is composed of:a base plate(2); a cover(3) installed to be rotated by the base plate; a maintaining device(4) maintaining collected pills; a pill discharging hole(5) selectively discharging the pills; and a circular guide route forming more than one notch and more than one tooth for the notch. The circular guide route contains an upper rim(11) and a lower rim(12) forming the guide route and the rims shape in a saw tooth to supply more than one notch(9) between the rims. The guide route and the notch are supplied to the cover and the base plate.
Patent KR-20000054928-A (KR)
Inventor: HWANG JI HYEON
IPC: G01R31/28
Filed: 1999-02-01
Abstract: PURPOSE: A device and method for carrier handling of a module IC handler is provided for multiple module ICs to transfer among processes and to effectively test a loaded carrier. CONSTITUTION: A device and method for carrier handling of a module IC handler includes a base frame(12). A vertical frame(10) is installed vertically to a part of the base frame(12). Each carrier unit is fixed to the upper part of a carrier holder(22) installed to slide along an LM guide rail(14) installed in parallel to the upper part of the base frame(12). Each press unit(104) is installed to a part of the vertical frame(10) to have a contact to a module IC(26) contained in the carrier unit. A driving motor(16) with a pulley(18) is installed to a part of the vertical frame(10) to horizontally slide the carrier unit connected with a timing belt(20).
Patent KR-19990072354-A (KR)
Title: 고전환율과저에너지소모로요소를제조하는방법및장치
IPC: C07C273/04
Filed: 1999-02-02
Abstract: 요소제조공정에서 순수한 암모니아와 이산화탄소가 반응되어서 요소회수지대로 공급되는 반응 혼합물이 형성된다.  회수지대로 부터 카바메이트 희석 용액이 수득되고 응축에 앞서 반응공간으로 재순환하는 증기로 세정된다.  이 공정은 낮은 에너지 소모 및 설비비용으로 높은 전환율을 획득할 수 있게 한다.
Patent KR-20000056373-A (KR)
Inventor: GO YUN PYO
IPC: C04B14/06
Filed: 1999-02-19
Abstract: PURPOSE: An ecological block of porous natural stones is provided to have a stable structure without using additional supporters, to make environments having nature-friendship by afforesting the slant surfaces of a bank or a revetment, which were difficult in afforesting and by having porous holes in the stones for allowing plants or grasses to grow. CONSTITUTION: An ecological block of porous natural stones is manufactured by the steps of forming concrete blocks(3,4) using a mold, forming a porous mortar layer(2) by compounding soil cement, volcanic sand and sand on the upper end of the concrete blocks, putting porous natural stones(1) into the whole porous mortar layer to be buried in a prescribed depth, and curing the compound.
Patent KR-19990077681-A (KR)
Title: 표면 품질이 향상된 압연 폴리머 필름의 제조 방법
IPC: B29C59/10
Filed: 1999-03-08
Abstract: 압연 폴리머 필름 제조시 표면의 자국 발생수와 그 정도를 줄이는 방법이 개시되었다.  이러한 공정에는 일반 대기 압력하에서 코로나 방전 처리 형식의 약한 레벨의 전기 방전을 공기에 적용시켜 롤을 이용하여 세로로 드로잉하기 전에 상기 롤을 사용함으로써 발생하게 되는 표면 손상을 줄인다.  본 발명을 폴리에틸렌 테레프탈레이트 필름의 생산 공정으로 이용한 결과, 본 발명을 사용하지 않고 필름을 생산한 것과 비교할 때 클리닝 필요 회수가 현저히 줄어들며 이로 인해 제품의 생산 가동 시간이 많이 길어진다.
Patent KR-19990082743-A (KR)
Title: 개별프로세서의초기해제에의한시스템직렬화및그멀티프로세서시스템
Filed: 1999-03-15
Abstract: 하드웨어 제어 실행 유닛에서 단일 인스트럭션 셋트를 실행하고, 상기 하드웨어 제어 실행 유닛에서 단일 인스트럭션의 밀리코드 시퀀스로 밀리-모드 구조 상태의 복합 인스트럭션 셋트를 실행하는 ESA/390 연산을 위한 본 발명의 파이프라인형 멀티프로세서 시스템은 각각이 상기 멀티프로세싱 시스템의 일부이고 작업 거부 요구를 발생시키고 상기 작업 거부 요구에 응답할 수 있는 다수개의 CPU 프로세서 및 상기 ESA/390 시스템의 CPU로 하여금 다른 모든 프로세서가 인터럽트 가능 시점(interruptible point)에 도달하는 것을 대기하지 않고 IPTE 및 SSKE 연산의 로컬 버퍼 갱신 부분(local buffer update portion)을 프로세스하고, 그런 다음 IPTE나 SSKE 연산이 전체적으로 완료될 때까지 연산에 대한 소수의 일시적인 제한(restrictions)으로 프로그램 실행을 계속하도록 시스템 연산 제어를 포함한다.  또한 상기 IPTE와 SSKE 연산으로 하여금 통상의 시스템이 작업을 거부하도록(quiescing)(즉, 모든 프로세서가 모두 잠시 중지되어야 함) 요구하는 다른 연산과의 공존을 허용하고, 연산 중 임의 시점에서 시스템의 임의 CPU에 대한 CPU 재시도 동작(retry action)을 실행하도록 하는 인가 내부 코드(Licensed Internal Code, LIC) 시퀀스가 정의된다.
Patent KR-19990083669-A (KR)
Title: 냉장고케이스
Filed: 1999-03-24
Abstract: 본 발명은 냉장고 케이스에 관한 것으로서, 상자체의 골조를 이루는 프레임을 "ㄷ"자 및 "ㄱ"자 형상으로 절곡 형성한 후 베이스틀에 각 기둥 역할을 하는 프레임을 설치하면서 단열판을 끼워 측면 및 뒷면의 벽체를 이루도록 하고, 각 수평역할을 하는 프레임들에 단열재를 끼워 넣어 바닥체 및 전면 벽체를 이루도록 하며, 상부의 테두리를 마감하는 프레임에 의하여 고정되는 단열판이 천장체가 되도록 구성하는 것을 특징을 한다. 
     본 발명에 의하면 낱개로 형성된 각 프레임들 사이에 벽체를 이루는 통상의 단열판을 끼워 넣으면서 전면이 개방된 상자체를 용이하게 제작할 수 있는 것이므로 그 구조의 간단화 및 조립의 편리화를 통해 저비용의 설비투자를 통해 저렴한 냉장고 케이스를 제공할 수 있는 것이다.
Patent KR-20000061298-A (KR)
Inventor: KIM TAE GYU
IPC: H04N7/167
Filed: 1999-03-25
Abstract: PURPOSE: A method for preventing children from televiewing specific programs on a TV set is provided so that the children can not watch adult programs by setting or canceling a child lock function with respect to users' request. CONSTITUTION: A micro computer performs an initializing operation when power of a TV set is turned on, and identifies a channel or an audio-visual(AV) mode before turning off the power. Whether the child lock is set up on the channel or the AV mode is decided. If not, a broadcast signal or an AV signal before turning off the power is inputted to normally output the signal, and a key signal inputting routine is performed. If the child lock is set up, image/sound signals are muted. An on-screen display(OSD) is controlled to output an OSD screen for inputting a password. A password is inputted through a key input circuit. A password inputting process and the inputted password is compared with the preset password. If the two passwords are equal, the OSD and a sound signal muting unit are controlled to normally output the image/the sound signals.
Patent KR-19990068313-A (KR)
Title: 흡착과습동기능을구비한유리창세척장치
Filed: 1999-03-27
Abstract: 본 발명은 흡착과 습동 기능을 구비한 세척장치에 관한 것으로써 더욱 상세하게는 대기 압력차를 이용하여 청소가 곤란한 고층 건물의 각층에서 내부 또는 외부창 유리면을 사용자가 건물 내에서 간편하게 청소할 수 있는 유리창 세척장치에 관한 것이다. 
     이를 위하여 본 발명은 청소가 곤란한 고층 건물의 저층에서 내 외면 창을 사용자가 건물 내에서 힘들여 들거나 눌러 문지를 필요 없이 자유롭게 조종하며, 전후 방향으로 가볍게 움직여 주기만 하면 편리하게 청소할 수 있는 유리창 세척장치를 제공함에 있어서, 외장케이스와 하부틀체를 조합하여 세척장치헤드를 구성하여 하부틀체는 흡착력을 지지하여 구동하는 바퀴는 마찰력이 높은 고무재로 미끌림을 방지하며, 세척수를 제거하는 와이퍼가 바퀴축에 위치한 와이퍼홀더에 삽설하여 유리표면에 묻어 있는 세척수를 제거하여 고속으로 유입되는 유입류로 흡입하게 되고 흡착력을 형성하는 실링케이스는 낮은 압력의 스프링으로 압착하여 유입류를 차단하며 도시를 생략한 흡입장치로 흡입하여 대기 압력보다 낮은 진공으로 차압력을 발생하여 흡착함과 동시에 세척수 누출을 방지하게 도며 공급장치에서 유입된 세척액과 세척수는 세척액은 세척패드로 유입되어 세척하고 오염된 세척액은 세척수케이스와 패드커버 사이에 형성된 노즐에서 분출하는 세척수로 유리표면에 묻어 있는 오명된 세척액을 제거하여 흡입통로를 따라 흡입하게 되도록 구성되어 있고, 외장케이스와 조인트커버는 세척장치헤드가 요동과 회절이 자유롭게 움직이도록 체결된 링크조인트와 회절관과 손잡이관에 삽설된 연장관과 손잡이관 내부에 위치하여 플렉시블호스와 체결된 회전관은 플렛시블호스와 뒤틀림을 방지하며 회전관과 자유롭게 회전하도록 구성하여 손잡이관을 잡고 청정대상 유리면에서 상하 어떤 위치로든 조종하여 위치를 옮겨가며 사용할 수 있으며 외장케이스 내부에는 하부틀체를 수납하여 와이퍼홀더에 형성된 링크, 플로어구를 구동하는 가이드에 수납되게 위치하여 전후방향으로 자유롭게 움직이도록 구비되어서 항시 진행방향의 앞쪽의 와이퍼를 개방하여 오염물이 와이퍼에 의하여 방해받지 않고 세척장치 내부로 유입되도록 함과 동시에 뒤쪽의 와이퍼를 작동시켜 유리면에 접촉하여 양방향으로 세척하는 유리창을 청소하기 위한 특히 대형창 저층을 포함하는 고층에서 내 외면창을 세척하기 위한 세척장치로써 세척장치헤드를 흡착, 습동하도록하여 자유롭게 조종하여 세척하는 것을 특징으로 하는 유리창 세척장치.
Patent KR-20000074149-A (KR)
Inventor: KWAK DONG JIN
IPC: A47L9/16
Filed: 1999-05-18
Abstract: PURPOSE: Multi-cyclone dust collection equipment executes smoothly dust collection working of various dirty matter like dust by decreasing pressure loss of the whole multi-cyclone dust collection equipment. CONSTITUTION: Multi-cyclone dust collection equipment comprises first cyclone dust collection equipment to dust-collect dirty matter inside of induced air by using gravity after intaking air contained in dirty matter through air suction side from the outside; second cyclone dust collection equipment to dust-collect again dirty matter inside of induced air by using cyclone working after intaking air separated from dirty matter firstly through the first cyclone dust collection equipment, to discharge dust-collected air to the outside through air discharge side. And the equipment is characterized by being situated air suction side of the first cyclone dust collection equipment and air discharge side of the second cyclone dust collection equipment in identical line; discharging induced air through air discharge side for direct direction.
Patent KR-20010002352-A (KR)
Inventor: SHIN DONG CHEOL
IPC: B01J20/22
Filed: 1999-06-10
Abstract: PURPOSE: Complex floating deodorizer is provided which mixes floating deodorizer and liquid neutralizing deodorizer to a certain degree so that it is effectively used in deodorizing, for example, sludge. CONSTITUTION: The complex floating deodorizer is prepared by the steps of: (i) mixing active carbon, gluconic sodium, natural zeolite, ion-exchange zeolite, synthetic zeolite, lime stone, talc, calcite, silica gel, alumina, bone black, china clay and oxidant at independent or specific composition ratio to prepare deodorizing materials; (ii) passing the materials through drying and burning process to prepare floating deodorizer; and (iii) mixing the floating deodorizer and the liquid neutralizing deodorizer like amine, carboxyl, aldehyde radicals or so on to prepare complex floating deodorizer.
Patent KR-20010003238-A (KR)
Inventor: JUNG YEON GU
IPC: G01B11/24
Filed: 1999-06-22
Abstract: PURPOSE: A method and an apparatus for inspecting real time measurement error are provided to intuitively see the image projected to the actual object, thereby reducing the time for inspecting. CONSTITUTION: A method and an apparatus for inspecting real time measurement error includes a three dimensional measuring machine(10) outputting distance image data by measuring three dimensional coordinates of an object to be measured, a three dimensional imaginary object generator(20) receiving the distance image data for converting into a three dimensional initial mesh and generating LOD(Level of Detail) mesh by using the three dimensional initial mesh, and a three dimensional image projector(30) projecting the three dimensional mesh image to the object to be measured and inspecting the matching the object to be measured and the projected three dimensional image.
Patent KR-20010003633-A (KR)
Inventor: LEE JE HUN
IPC: H04Q3/02
Filed: 1999-06-24
Abstract: PURPOSE: A method for controlling switch connection in a distributed switching system is provided to make one intelligent control part control the connection of switches under a distributed switch environment in which the intelligent control part and the transmission parts are divided and geographically distributed. CONSTITUTION: If a connection command is received from a call control part, a switch connection control part checks a connection type. If the connection type is switch connection, the switch connection control part transmits a command of connecting two connection points to corresponding switches. If the connection type is inter switch connection, the switch connection control part obtains routing information from a routing database. The switch connection control part checks the routing information. If the routing information is for switch connection, the switch connection control part transmits a command of connecting two connection points to corresponding switches. If the routing information is for inter switch connection, the switch connection control part transmits a trunk reserving command to each switch to control the connection between the corresponding switches.
Patent KR-20010003659-A (KR)
Inventor: HA DU HAN
IPC: C08L9/00
Filed: 1999-06-24
Abstract: PURPOSE: The titled composition prepared by mixing three kinds of rubbery polymers having different average particle diameters with high molecular weight SAN resin is provided, which has noticeably improved elongation and heat resistant characteristics while maintaining excellent impact resistance and shows favorable physical properties to apply to large injection molded products requested for heat resistance. CONSTITUTION: The composition comprises 50 to 25% by weight of a copolymer obtained from a mixed rubbery latex containing 5 to 40% by weight of a small particle size rubbery latex containing 100% by weight of 1,3-butadiene as a rubbery latex and having a particle diameter of 0,05 to 0.15 micrometer, 10 to 45% by weight of a medium particle size rubbery latex having a particle diameter of 0,20 to 0.35 micrometer and 10 to 45% by weight of a large particle size rubbery latex having a particle diameter of more than 0.35 micrometer and 50 to 75% by weight of a high molecular weight heat resistant copolymer having a weight average molecular weight of more than 200,000, a vinyl aromatic compound monomer content of 74 to 82% by weight in a copolymer and an unsaturated nitrile monomer content of 18 to 26% by weight.
Patent KR-20000006620-A (KR)
Inventor: KIM KYUNG MO
IPC: E02D29/02
Filed: 1999-07-02
Abstract: PURPOSE: The separation-type reinforcing soil revetment is provided to prevent for the horizontal soil pressure to affect to the front block by absorbing the horizontal displacement generated in the process of forming the reinforcing soil body as being separated the reinforcing soil body and the front block. CONSTITUTION: The construction method of reinforcing soil revetment has the steps of: forming the reinforcing soil body(2000) by stacking plural soil body layers(201, 202, 203) upward; forming one front layer at the place separated in a specific interval from the front face of the reinforcing soil body(2000) formed; filling in the space between the reinforcing soil body and the one front layer to form one front layer(301, 302, 303); forming the one front layer repeatedly at the upper part of the one front layer to construct the front part(3000) consisted of plural front layers; separating the reinforcing soil body and the front part not to be affected by the horizontal soil pressure.
Patent KR-20000016916-A (KR)
Inventor: MATSUYAMA YUJI
IPC: G03F7/20
Filed: 1999-07-09
Abstract: PURPOSE: A processing equipment is provided to minimize a thermal influence on a liquid processing unit which is integrated with a heating unit. CONSTITUTION: The processing equipment comprises: a first and a second liquid processing unit(70, 80) for supplying a processing liquid onto a substrate and processing the substrate; a heating unit(30, 50) for heating the substrate to a selected temperature; a cooling unit(20) for cooling the substrate to a selected temperature; a first and a second transfer unit(90, 100) for transferring the substrate. The first transfer unit faces opposite to the second transfer unit with the heating unit disposed between the first and second transfer units. The first liquid processing unit faces opposite to the second liquid processing unit with the second transfer unit disposed therebetween. The first transfer unit can load and unload the substrate with respect to the heating unit and the cooling unit and the second transfer unit can load and unload the substrate with respect to the liquid processing unit and the cooling unit.
Patent KR-20000011851-A (KR)
Inventor: DAMURASINIZIRO
IPC: H01L51/50
Filed: 1999-07-21
Abstract: PURPOSE: The organic field emitting device is made to assure sufficiently high display contrast when used as a display, by reducing the reflection of light from a metal electrode layer(14). CONSTITUTION: The device can reduce the light reflection from the electrode layer. The device includes; a first electrode layer(12); an organic field emitting layer(13) formed adjacent to one surface of the first electrode layer; a second electrode(14) which is formed adjacent to another surface of the organic field emitting layer and has a light reflectivity as to the visible ray specified in the range below 50 percents; and a low light reflecting layer(21) formed on the second electrode layer on the side facing to the surface adjacent to the organic field emitting layer. The low light reflecting layer includes more than one layer including layers having the light reflectivity as to the visible ray specified in the range below 10 percents.
Patent KR-20010010575-A (KR)
Inventor: KIM HYO SIK
IPC: G01M13/00
Filed: 1999-07-21
Abstract: PURPOSE: A method for estimating a fatigue life of a leaf spring of a vehicle is provided to improve the complicated preparation of a sample to test and reduce time and cost required for the test of durability. CONSTITUTION: A method for estimating a fatigue life of a leaf spring of a vehicle includes the steps of manufacturing a leaf spring to test with a finite element model(30), computing a dynamic load with relation to the manufactured leaf spring(40), analyzing the finite element model with relation to the manufactured leaf spring and computing a stress of a unit loading table(50), computing a dynamic stress of the leaf spring with relation to the computed dynamic load and the unit displacement(60), and estimating a fatigue life of the damage due to the computed dynamic stress by a miner's rule(70).
Patent KR-20010010977-A (KR)
Inventor: CHOI SEONG MUN
IPC: H04N5/44
Filed: 1999-07-24
Abstract: PURPOSE: A micro control unit(MCU) of a monitor is provided to divide an inputted high resolution of horizontal synchronous signal frequency in half, and to output a half size of high resolution horizontal synchronous signal frequency included within the range of a reference horizontal synchronous signal frequency, so as to use a low resolution monitor as a high resolution monitor. CONSTITUTION: After a high resolution horizontal synchronous signal over a reference horizontal synchronous signal frequency is firstly inputted, if the second high resolution horizontal synchronous signal is inputted, a micro control unit(MCU) of a monitor operates an internal dividing circuit to interrupt the second high resolution horizontal synchronous signal. The MCU divides a frequency of the high resolution horizontal synchronous signal in half with a blanking time setup method, by including an area of the interrupted high resolution horizontal synchronous signal, not to display the area of the interrupted high resolution horizontal synchronous signal. The MCU outputs a half size of high resolution horizontal synchronous signal frequency, which is included within the reference horizontal synchronous signal frequency.
Patent KR-20010018953-A (KR)
Inventor: PARK TAE JE
IPC: H04N7/20
Filed: 1999-08-24
Abstract: PURPOSE: A device for detecting a format of an STB signal is provided so that the format of the STB signal can be precisely detected without an error, by checking a synchronization state of a programmable PLL integrated circuit in regard to a horizontal synchronous signal of the STB signal. CONSTITUTION: A synchronous signal separating unit(31) receives a luminance signal from a set top box of a digital TV system, and separates a horizontal synchronous signal therefrom. A programmable PLL integrated circuit(32) shows a synchronization state with the horizontal synchronous signal separated in the synchronous signal separating unit(31). In addition, a microcomputer(33) controls the whole operation of the digital TV system, and determines a synchronous operation of the programmable PLL integrated circuit(32). The microcomputer(33) also examines a synchronization state of the programmable PLL integrated circuit(32), to detect a format of an STB signal. That is, the synchronization state of the programmable PLL integrated circuit(32) is examined in regard to the horizontal synchronous signal of the STB signal.
Patent KR-20010019203-A (KR)
Inventor: CHOI YEONG GUK
IPC: C07C17/00
Filed: 1999-08-25
Abstract: PURPOSE: A continuous preparation of perfluoroethyliodide denoted by C2F5I is accomplished under activate liquid catalyst. The compound is used in a variety of water/oil repellent process or contaminant-resistant agents and high performance surfactant. CONSTITUTION: A continuous preparation of perfluoroethyliodide is performed by using iodide, pentafluoroiodide, tetrafluoroethylene(TFE) and reaction catalyst. The preparation comprises further continuously introducing TFE under room pressure and in the presence of antimony pentafluoride (SbF5) reaction catalyst in liquid state to produce perfluoroethyliodide product. The iodide and iodide pentafluoride is admixed together in a reaction molar ratio (I2/IF5) of 0.02-5 and the reaction catalyst SbF5 is dissolved under stirring at room temperature to 50 deg.C.
Patent KR-20000017653-A (KR)
Inventor: HIROKI MASAKI
IPC: G09G3/36
Filed: 1999-08-31
Abstract: PURPOSE: A display apparatus and driving method therefor is provided, which drives an active matrix semiconductor display apparatus having a thin film transistor. CONSTITUTION: The display apparatus comprises: a source signal line side driving circuit (501) which a modulated clock signal and a start pulse are inputted; a gate line side driving circuit (502) which a fixing clock and a start pulse are inputted; an active matrix circuit (503) having a pixel arranged with a matrix form so that one pixel is crossed to a gate signal line (507) and a source signal line (508); a liquid crystal (505) to be located between the active matrix circuit (503) and a counter substrate. Each pixel has a thin film transistor (504). A pixel electrode and an auxiliary capacitor (506) are connected to a drain electrode of the thin film transistor (504). Thereby, it is possible to provide an excellent video having a high resolution.
Patent KR-20010025917-A (KR)
Inventor: CHO SU
IPC: F24F1/56
Filed: 1999-09-01
Abstract: PURPOSE: A hot air exhaust window for air conditioner outdoor unit is provided prevent damage to the outdoor unit by allowing the outdoor unit to be installed within a building. CONSTITUTION: A hot air exhaust window is surrounded by a horizontal frame(2a) and a vertical frame. A hot air exhaust louver includes a plurality of unit louvers(5a) arranged in multi-stage within an area formed by a horizontal support(6) installed to be parallel to the horizontal frame and a vertical support(7) installed to be parallel to the vertical frame. An open/shut-off window(8) is coupled to the rear of the hot air exhaust louver in such a manner that the open/shut-off window is slidable along the rail arranged at the upper surface of the horizontal frame. The unit louver includes a fixation pin fixed horizontally to the unit louver, and a flow plate(10) having an arc-shaped curved section and an upper end of which is coupled to be rotatable to the fixation pin.