baber/WOPTO huggingface dataset:
Patent KR-20000013347-A (KR)
Title: Isolation method of semiconductor device
Inventor: SEO YEONG U
IPC: H01L21/76
Filed: 1998-08-07
Abstract: PURPOSE: An isolation method is provided to prevent a dishing effect generated in an isolation region of a semiconductor substrate. CONSTITUTION: The isolation method comprises the steps of: forming a pad oxidation layer on the semiconductor substrate; forming an anti-oxidation layer pattern on the pad oxidation layer; forming a first insulation layer on the entire surface of the substrate; forming a sidewall spacer on a sidewall of the anti-oxidation layer pattern; forming a field oxidation layer on the isolation region of the semiconductor substrate by a thermal oxidation; exposing a surface of the semiconductor substrate between the anti-oxidation layer pattern and the field oxidation layer by isotropic-etching the field oxidation layer while a predetermined part of the field oxidation layer is not etched; forming a trench by etching the exposed region of the semiconductor substrate, the etching is an anisotropic etching using the anti-oxidation layer pattern and the field oxidation layer as an etching mask; forming a second insulation layer for filling up the trench after thermal oxidation of the trench; and planarizing the second insulation layer.
Patent KR-20000013510-A (KR)
Title: Insulating gate bipolar transistor with increasing emitter resistance
Inventor: KIM SU SEONG
IPC: H01L29/66
Filed: 1998-08-10
Abstract: PURPOSE: An insulating gate bipolar transistor is provided to suppress a latch-up phenomenon by increasing resistance between an emitter region and an emitter electrode. CONSTITUTION: The transistor comprises a second conductive epitaxial layer formed on a first conductive semiconductor substrate, a first conductive base region formed on a predetermined region of the epitaxial layer, a second conductive emitter region formed on a surface of the predetermined region of the base region, an emitter electrode directly contacted with the base region and connected the emitter region through a resistance layer, and an insulated gate electrode formed on the emitter region, the base region, and a predetermined region of the epitaxial layer.
Patent KR-20000013924-A (KR)
Title: Deflection yoke
Inventor: YOON BOK-SOO
IPC: H01J29/76
Filed: 1998-08-14
Abstract: PURPOSE: Regarding deflection yoke which deflects the electronic beam from the electronic gun, the exposed upper part of deflection yoke separator is protected to prevent a short or shocks from contact during assembling work and accumulation of dust or alien substance. CONSTITUTION: This device comprises the fixed groove(111c) on both sides of the original panel(111b) of the separator(110), comprising the cathode-ray tube deflection yoke(100) and the protection panel(140) mounted on the fixed groove. The protection panel comprises the supportive structure(141) mounted on the outside circumference of the deflection yoke neck(111a), the cover(142), and the fixing parts(143) injected to the fixed groove.
Patent KR-19990023829-A (KR)
Title: 광전송시스템 및 그에 이용되는 광송신장치 및 광수신장치
IPC: H04B10/588
Filed: 1998-08-21
Abstract: 본 발명은 광전송시스템 및 그에 이용되는 광송신장치 및 광수신장치에 관한 것으로서, 각도변조부(1)는 입력된 전기신호를 소정의 각도변조신호로 변환하고, 광변조부(2)는 각도변조부(1)에서 출력되는 각도변조신호를 광변조신호로 변환하여 광도파부(3)에 송출하고, 간섭부(6)는 광도파부(3)를 통하여 보내온 광신호를 소정의 전파지연차를 갖는 2개의 광변조 신호로 분리한 후 합성하고, 광전기변환부(4)는 이 합성광 신호를 동기 검파하는 것에 의해 원 전기신호를 복조하여 출력하고, 즉 간섭부(6) 및 광전기변환부(4)에서 광신호의 지연 검파계를 구성하고, 이 지연 검파계에 의해 광신호로부터 전기신호로의 변환처리와 각도복조처리를 동시에 실시하도록 하여 광대역, 고주파용 전기부품을 사용하지 않고 광대역, 고주파 신호를 복조할 수 있는 것을 특징으로 한다.
Patent KR-20000018499-A (KR)
Title: Method for forming a trench isolation of semiconductor devices
Inventor: LEE GEUM JU
IPC: H01L21/31
Filed: 1998-09-02
Abstract: PURPOSE: A trench isolation method is provided to improve trench isolation properties and prevent a gate poly stringer by preventing a recess phenomenon of an oxidation preventing layer. CONSTITUTION: A pad oxide(32) and an active nitride(34) are sequentially formed on a semiconductor substrate(30). A trench(38) is formed by etching the active nitride, the pad oxide and the semiconductor substrate using a trench mask(36), and then a portion of the active nitride(34) formed at both sides of the trench(38) is removed by wet etching. A thermal oxide(42), an oxidation preventing nitride(44) and an HTO(hot thermal oxide) layer(46) are sequentially formed on the resultant structure. At this time, since the area of the active nitride(34) is reduced, the surface area of the insulating layers(44,46) is increased. Thereby, a recess of the oxidation preventing nitride(44) and the HTO layer(46) is substantially prevented.
Patent KR-20000031894-A (KR)
Title: Dna detection method using janus dye in the polymer gel
Inventor: YOO GYURNG SOO
IPC: C12Q1/68
Filed: 1998-11-11
Abstract: PURPOSE: Provided is a DNA detection method using Janus dyes which are nontoxic and nondestructive to DNA, and makes DNA to be detected simply and sensitively without UV irradiating. CONSTITUTION: Janus blue is used to detect DNA in the polymer gel and optimal concentration thereof is 0.002-0.005%. Ethanol or methanol is included in the buffer solution containing Janus dye. 10% ethanol is optimal for staining DNA in the polymer gel. Minute colloidal state of Janus dye is good for staining but over precipitation inhibits DNA from staining. Staining for about 1-2 hours is preferable but overnight staining is possible if low concentration of dye used. Destaining step takes 1 hour or less. 5-20 ng of DNA will be detected without any problem.
Patent KR-19990014459-A (KR)
Title: 병뚜껑
Filed: 1998-11-11
Abstract: 본 발명은 병뚜껑에 관한 것으로, 병입구에 나사결합하는 속뚜껑의 유출통로 중앙에 고정부를 형성시켜 개폐패킹을 상향돌출되도록 고정시키고, 상기 속뚜껑의 외면에 나사결합하는 겉뚜껑에는 유출통로와의 사이에서 기밀을 유지하도록 실링을 포함하는 누출방지부 및, 개폐패킹을 압박 또는 이격되어 내용물을 차단 또는 이동시키는 토출구를 형성시켜 줌으로써, 극히 용이한 개폐작동에 의해 사용자의 제품선호도를 향상시키고, 구성의 단순화와 내용물의 누출방지 및 위생적 보관이 가능하여 생산원가 절감과 생산성향상 및 사용자의 제품신뢰도를 적극적으로 구현할 수 있도록 한 것이다.
Patent KR-20000043198-A (KR)
Title: Method for forming dual gate oxide
Inventor: KIM HYEON SU
IPC: H01L27/10
Filed: 1998-12-28
Abstract: PURPOSE: A method for forming a dual gate oxide is provided to form a first gate oxide and a second gate oxide with different thickness each other. CONSTITUTION: A method for forming a dual gate oxide comprises forming a first laminate of a first gate insulating layer(2) and a first conductive layer(3) on a substrate, etching the laminate and a portion of the substrate through an isolation mask to form a trench for isolating a device, forming an insulating layer(4) on the surface of the trench, forming a CVD insulating layer(5) to fill the trench with it, wherein the CVD insulating layer(5) is lower than the first conductive layer(3), etching the conductive layer(3) and the first gate insulating layer(2), forming a second laminate of a second gate insulating layer(6) and a second conductive layer(7) on the substrate, and etching the first and the second laminate to form a first gate electrode and a second gate electrode.
Patent KR-19990067304-A (KR)
Title: 검정을 수행하기 위한 검정 시스템 및 방법
IPC: G01N33/50
Filed: 1996-11-01
Abstract: 본 발명은 반응 챔버내에서 유체가 통하지 않도록 하는 방식으로 승온 반응을 수행하기 위한 검정 시스템에 관한 것이며, 상기 검정 시스템은 (a) 반응 챔버를 포함하는 제 1 어셈블리, 및 (b) 반응 챔버에 인접하여 위치할 수 있는 온도 조절용 제 2 어셈블리를 포함한다.  보다 상세하게는, 본 발명은 (a) 변형 가능한 물질 및 (b) 반응 챔버의 온도를 빠르게 조절할 수 있는 메카니즘을 포함하는 검정 시스템에 관한 것이다.
Patent KR-20000064369-A (KR)
Title: 섬유질재료를외부적으로사이징하는방법
IPC: D21H19/10
Filed: 1996-12-05
Abstract: 에틸렌형 불포화 단량체와 에틸렌형 불포화 카르복실산 공단량체의 공동중합체의 염기성 수반산액을 섬유질 제품에 도포함으로써 섬유질 제품을 외부적으로 사이징한다.  초기 점도가 낮은 바람직한 분산액은 점도가 높고 외부 사이징 효과가 향상된 분산액/전분 묽은 용액을 제공한다.  그 결과 얻어지는 섬유질 제품은 적절히 사이징되며 우수한 인쇄성 및 강도 특성을 나타낸다.
Patent KR-19990067933-A (KR)
IPC: H01L21/673
Filed: 1999-01-13
Abstract: 본 발명은, 개폐동작과 이동적재동작을 동시에 행할 수 있는 구조를 가지는것에 의해, LT를 연장하지 않고, 비용증가를 억제하며, 사람으로부터의 발진에 의한 영향을 억제할 수 있는 반도체수납도구, 핸들링방법 및 생산시스템에 관한 것이다.   테이블(4)상의 캐리어(2)에 대해서, 상부로부터 씌우는 구조(6), 또는 양 측면에 내부의 캐리어(2)를 쥐는 상태로 변형하는 발진이 없는 재질의 창부(8)를 설치하며, 이동적재기(3)의 조부(13)를 제어부(12)에 의해 2단 제어하고, 덮개와 캐리어의 동시 보지 또는 덮개만의 보지를 분리해서 사용하는 것에 의해 개폐와 이동적재를 행한다.
Patent KR-20000051703-A (KR)
Inventor: LEE JU YUB
IPC: H02H3/00
Filed: 1999-01-25
Abstract: PURPOSE: A device for overcurrent guard circuit of power module using inverse saturation is provided to activate a guard circuit at real time when responding to overcurrent so as to solve the basic problems occurring from overcurrent guard circuits. CONSTITUTION: A device for overcurrent guard circuit of power module using inverse saturation includes the following components. An IPM controls on-off power. A waveform conversion unit(10) converts the waveform of an on-off power control signal which is externally inputted into a constant waveform. A buffering unit(20) buffers and outputs the control signal from the waveform conversion(10) and on-off power control signal according to detection of overcurrent. An inversely-saturated voltage detection unit(30) detects inversely-saturated voltage of IGBT which is activated by the control signals outputted from the buffering unit(20). A control signal generator(40) outputs surge voltage preventive signals and on-off control signals according to the inversely-saturated voltage detection signals. A surge voltage preventive signal generator(50) softly reduces the accumulated voltage of the base of IGBT according to the surge voltage preventive signals from the control signal generator(40).
Patent KR-20000055323-A (KR)
Inventor: LEE YOUN YOUNG
IPC: H01R13/66
Filed: 1999-02-05
Abstract: PURPOSE: A jack for a radio transceiver is provided to make an insertion member in which a plug is to be inserted of an insulation material so as to increase the productivity. CONSTITUTION: A jack for a radio transceiver includes a body(10), an insertion member(12), a ground terminal(18), an operation terminal(20), and a supporting protrusion(22). The body(10) of the radio transceiver is made of an insulation material. The insertion member(12) is implemented on one terminal of an earth ring(14). The ground terminal(18) and the operation terminal(20) are arranged inside of the body, and the ground terminal(18) and the operation terminal(20) are implemented in the lower surface of the body. The supporting protrusion(22) is formed to support the body. One of the ground terminal(18) and the operation terminal(20) according to the present invention is curved. An insertion portion(12) with an inner diameter same to that of the insertion hole.
Patent KR-19990072829-A (KR)
Title: 디스크장치
IPC: G11B21/12
Filed: 1999-02-23
Abstract: 본 발명은 디스크 장치에 관한 것이다. 본 발명에서 헤드 캐리지는 디스크형 기록매체 상에 기록 및 재생을 수행한다.  캐리지 이동기구는 디스크형 기록매체의 방사 방향으로 헤드 캐리지를 이동시킨다.  헤드 승강기구는 헤드를 디스크형 기록매체에 접근시킨다.  헤드를 통해서 디스크형 기록매체 상에 기록 및 재생이 수행된 후, 종료시에 헤드 승강기구에 의해 헤드가 디스크형 기록매체에 접근하는 위치와는 다른 위치로 캐리지 이동기구가 헤드를 이동시킨다.
Patent KR-20000056881-A (KR)
Inventor: PAK TAE DONG
IPC: E02D29/12
Filed: 1999-02-27
Abstract: PURPOSE: A multistep hook type opener for manhole cap is provided to make the work lifting a heavy manhole cap in a working field easy by the theory of levels as using the upper hook, the lower hook and S-type wing, thereby worker do not need to bent their waist by force. CONSTITUTION: A multistep hook type opener for manhole cap comprises: a handle(22) which is made by steel, bended at the middle of the lower part and made to be in proportion to the height of a worker; a lower- supporting part(27) which is fixed to support the weight of a handle and prevent a handle(22) from sliding; a wing part(12) which is located above a lower-supporting part(27), S-shaped and easy enough to be inserted into the groove of manhole cap; a hook(11) which is located opposite a wing part(12), attached at the bended point, inserted into the groove formed on the manhole cap and open and close the manhole cap by running up and down.
Patent KR-20000056928-A (KR)
Inventor: KIM HONG MAN
IPC: G01J1/02
Filed: 1999-02-27
Abstract: PURPOSE: An optical detector capable of detecting wavelength and optical current simultaneously is provided to measure wavelength of various input light sources and optical current simultaneously by growing a plurality of InGaAsP optical absorption layers having different band gaps to have wider optical absorption wave length band width. CONSTITUTION: An optical detector capable of detecting wavelength and optical current simultaneously includes a plurality of InGaAsP optical absorption layers(10) having different band gaps, a clad layer, a InGaAs optical absorption layer(7) and a clad layer stacked on an electronic InP semiconductor substrate(6) in sequence and an upper hole type resistant contact metal layer(2) additionally contacting the clad layer on the InGaAsP optical absorption layers, so that optical current according to the strength of partial light beams radiated from an optical fiber is measured by the upper hole type resistant contact metal layer and a middle hole type resistant contact metal layer(8) and the wave length of the remaining light beams is measured by the middle hole type resistant contact metal layer and a lower electronic resistant contact metal layer(5).
Patent KR-20000067730-A (KR)
Inventor: YIM KWANG CHUL
IPC: A47G23/03
Filed: 1999-04-28
Abstract: PURPOSE: A wooden pot(cup) stand and a wooden shaft of a log cabin are provided to prevent crack of the stand due to the expansion of the wooden material by hot pot or cut to be laid on the stand by forming a through hole in the center part. CONSTITUTION: A wooden pot(cup) stand of a certain shape for laying a hot pot or cup on is formed with a through hole in the center part, and a wooden shaft of a log cabin or a wooden sidewalk block are formed with a through hole in the center part, so that the cracking of the wooden material is prevented.
Patent KR-19990064776-A (KR)
Title: 투명글라스의 발광장치
Filed: 1999-05-08
Abstract: 본 발명은 투명글라스가 기울어지면 발광램프가 내장된 시간동안 발광됨과 동시에 전자음발생수단에서 내장된 시간동안 전자음이 발생되게 구성하여 시각적인 효과와 청각적인 효과를 동시에 제공할 수 있는 투명글라스의 발광장치에 관한 것으로서, 상단에 하부에서 상부로 갈수록 내측에서 외측으로 경사지게 형성된 조사공(14)이 형성되고, 하단 내주면에 암나사산이 형성된 상부몸체(12)와, 상단 외주면에 상기 상부몸체(12)의 하단 내주면에 형성된 암나사산에 치합되는 숫나사산이 형성되고, 바닥면에 관통공(18)이 형성된 하부몸체(16)와, 상기 상부몸체(12)와 하부몸체(16)가 결합되는 부분에 개재되어 이 물질이나 수분등이 상부몸체(12)와 하부몸체(16)의 내측으로 유입되는 것을 제한하는 오일링(20)과, 하부몸체(16)의 수용공간 내경보다 작은 외경을 갖는 떨림판(22) 및 기판(24)과, 상기 기판(24)과 결합되어 선택적으로 발광되는 발광램프(26)와, 상기 기판(24)과 발광램프(26)로 전원을 공급하는 제 1건전지(28) 및 제 2건전지(30)와, 투명글라스가 기울어지는 것을 감지하는 경사감지센서(34)와, 일측이 상기 제 1건전지(28)의 +극에 접촉되고, 타측이 제 2건전지(30)의 -극에 접촉되는 제 1접속단자(44)와, 일측이 상기 제 1건전지(28)의 -극과 연결되고, 타측이 경사감지센서(34)에 접촉되는 제 2접속단자(46)와, 상기 기판(24)의 상단 일측에 경사감지센서(34)에서 감지된 신호가 출력됨에 따라 발광램프(26)가 발광되는 속도 및 발광되는 시간과, 전자음이 출력되는 시간를 선택적으로 제어하는 아이시 칩(48)을 포함하여 이루어진 것을 특징으로 하는 것이다.
Patent KR-20000075211-A (KR)
Inventor: HEO GWEON
IPC: C04B14/20
Filed: 1999-05-31
Abstract: PURPOSE: Provided is a preparation method of high strength artificial stone without crack using jade stone, which improves the product value and processing of jade by adding natural or artificial alkali metal oxides. CONSTITUTION: The preparation method of artificial stone using jade powder comprises the steps of: mixing 54-60% of jade powder(600 mesh) with 25-30% of artificial and 8-18% of natural alkali metal oxides such as mineral stone(mebanseok). sericite and germanium oxide; adding 8-11% of ethylene vinyl acetate(EVA); sintering as the following schedule, at 550-650°C for 25-35min to remove EVA and remained water, at 1300-1400°C for 3-5hrs. at higher than 1000°C for 2hrs. or more.
Patent KR-20010004332-A (KR)
Inventor: JUN JAE GYEONG
IPC: G06F11/00
Filed: 1999-06-28
Abstract: PURPOSE: A data allocation method to correct errors of data stored in a nonvolatile memory is provided to improve memory efficiency by storing relative displacements with respect to the reference data value in several areas. Therefore, the number of data bit is reduced. CONSTITUTION: The first area(10) of a nonvolatile memory is allocated for storing an initial reference value of the system against setting errors. The second area(20) of the nonvolatile memory is allocated for storing a user setting value while the system is operating. Moreover, plural additional memory blocks(30) are allocated for preventing errors in the user setting value. Therefore, differences between the initial value of the first area and the user setting value of the second area are stored in the additional memory blocks.
Patent KR-20010008516-A (KR)
Inventor: KWON O JEONG
IPC: H01L21/3205
Filed: 1999-07-01
Abstract: PURPOSE: A gate electrode manufacturing method is provided to be capable of mitigating a thermal stress of a hard mask and tungsten silicide by means of an anti-reflection film to prevent a lift phenomenon of tungsten silicide and the hard mask. CONSTITUTION: An anti-reflection film is additionally formed which is capable of replacing the function of an insulating film for a buffer between a tungsten silicide film and a hard mask. A gate insulating film(104), a doped polysilicon film(106) and a tungsten silicide film(108) are sequentially formed on a semiconductor substrate(100). An anti-reflection film(110) functioning to mitigate the stress and to perform anti-reflection is formed on the tungsten silicide film. A hard mask(112) as an insulator is formed on the anti-reflection film. The stacked hard mask film, the anti-reflection film, the tungsten silicide film and the doped polysilicon film are patterned by photography and etch process so that they are self-aligned, thus forming a gate electrode.
Patent KR-20000063107-A (KR)
Inventor: JEONG SEOK HWA
IPC: H04Q9/00
Filed: 1999-07-03
Abstract: PURPOSE: A remote control in which a laser pointer is attached is provided to operate electronic products by remote control and indicate the content of data in a briefing session and a seminar. CONSTITUTION: The remote control in which a laser pointer is attached comprises a laser pointer, a switch(4) and a battery. The laser pointer(2) having a luminous lamp(3) is attached in the upper part of remote control. The battery supplies power, and the luminous lamp is turned on and off by the switch. In the other case, a jack is installed in the upper part of the remote control, and a luminous lamp is installed in the remote control, and a power plug is formed in the laser pointer. And the laser pointer is operated with switch by inserting power plug into the jack.
Patent KR-20000012197-A (KR)
Title: Beauty soap composition of natural components containing carboxylmethyl chitin, elvan powder, and squalane
Inventor: SUNG HYUNG CHUL
IPC: A61K8/92
Filed: 1999-07-07
Abstract: PURPOSE: A beauty soap composition of natural components is provided to have a good effect in skin diseases such as the atopic dermatitis, the pimple and so on, and not to pollute the quality of the water after using. CONSTITUTION: The beauty soap composition of natural components contains an elvan powder 1% ¯ 7%, the squalane 0.1% ¯ 2%, and the carboxylmethyl chitin 0.001% ¯ 0.2% in a soap base having the natural vegetable cream such as the rape seed oil, the palm oil, the palm kernel oil and so on as a main component. Thereby the soap composition does not have the virulence and the stimulus, has the high resolvability, and has the effect of the waste water purification, and of the water improvement.
Patent KR-20010010518-A (KR)
Inventor: SONG IN DEOK
IPC: G02F1/1343
Filed: 1999-07-21
Abstract: PURPOSE: An in-plane switching mode liquid crystal display manufacturing method and liquid crystal display thereof are provided to reduce the number of manufacturing processes by forming a gate wiring in the laminated structure of metal and indium-tin-oxide(ITO). CONSTITUTION: A gate wiring(100) is comprised of the laminated structure of an opaque metal electrode(99) and a transparent conductive electrode(98) which is made of indium-tin-oxide(ITO). When the gate wiring(100) and a data wiring is formed on the front panel of a substrate(1), the metal and the indium-tin-oxide(ITO) are deposited and patterned simultaneously. Therefore, it is possible to reduce the number of manufacturing processes and the contact resistance between the metal and the indium-tin-oxide(ITO). In fabricating an in-plane switching mode liquid crystal display, the additional process for forming a special gate and data pads is unnecessary.
Patent KR-20000016962-A (KR)
Inventor: UCHIYAMA MITSURU
IPC: A61L2/20
Filed: 1999-07-21
Abstract: PURPOSE: A sterilizing device is provided to kill all kinds of harmful insects and to sterilize germs containing microorganism with a simple structure and without a pressure container. CONSTITUTION: The sterilizing device in composed of an atmospheric pressure vapor generator(1) generating the atmospheric pressure vapor and a vapor supplier supplying the atmospheric pressure vapor to the object for processing. The atmospheric pressure vapor generator has a water particle generator generating a water particle and a heater(6) heating the water particle. The sterilizing device using the atmospheric pressure vapor usually sterilizes an egg(10), cultural assets, an equipment for assets or a human body.
Patent KR-20010010719-A (KR)
Inventor: LEE JAE HONG
IPC: C21C7/06
Filed: 1999-07-22
Abstract: PURPOSE: A method for refining aluminum deoxidized super clean steel for cold rolled steel plate is provided to greatly improve cleanliness of steel by decreasing a content of lower oxides in a slag after completing increase of a temperature in the Ladle Furnace (LF) refining method. CONSTITUTION: A method for refining aluminum deoxidized super clean steel for cold rolled steel plate comprises the processes of finishing increase of temperature by having 0.035 to 0.045 wt.% of aluminum out of a molten steel in the Ladle Furnace refining process; injecting Al-CaOCO3 based slag formation of 0.5 to 0.75 kg/ton-steel per ton of a molten steel into the molten steel right after terminating the temperature increase; and bubbling the molten steel so that inclusions in the molten steel are separated and phased by the slag. The bubbling is carried out in a way that bottom bubbling is done in a flow rate of 0.7 to 0.9 m3/min for 3 to 5 minutes. An occurrence ratio of defects on a steel plate surface after cold rolling can be remarkably reduced, and an actual yield of a product can be improved by improving cleanliness of a molten steel.
Patent KR-20010010912-A (KR)
Inventor: LEE JOONG HO
IPC: B01D39/06
Filed: 1999-07-23
Abstract: PURPOSE: Devised is the refilling method of activated carbon, a filtering material, in the tap water purifier. According to this method, without disposal of filter system comprised of activated carbon and filter, an unable activated carbon has only to be removed. CONSTITUTION: The filtering system comprises the following parts: a filter body (201) which is hollow, upper side is opened to feed stream and lower side is linked to exhaust (202); activated carbon (203) which is packed in the middle of the filter body; a filter cap (206) which is fixed at the upper side and easily removed; filter sieves (204) which are held in upper and lower sides to support the activated carbon.