baber/WOPTO huggingface dataset:
Patent KR-20000041799-A (KR)
Title: Universal signal processing apparatus for use in supersonic wave traffic sensor
Inventor: CHO DONG IL
IPC: G08G1/04
Filed: 1998-12-23
Abstract: PURPOSE: An universal signal processing apparatus is provided to process a supersonic wave signal having a frequency selected from a range of 20KHz to 50KHz, by a single unit. CONSTITUTION: An universal signal processing apparatus in a supersonic wave traffic sensor comprises a micro computer(41), an FPGA(42), a transmission signal amplification and reception part(43), a programmable filter(44), an inverted amplifier(45), a multivibrator(46), a sensor height adjusting switch(47) and a sense signal output part(48). The FPGA(42) generates a rectangular wave having a supersonic wave frequency of a range of 20KHz to 50KHz in response to a control signal from the micro computer(41). The micro computer(41) generates the control signal in response to an output signal of the sensor height adjusting switch(47). The transmission signal amplification and reception part(43) amplifies the rectangular wave to send the amplified rectangular wave to a supersonic sensor(30), and receives a reflection wave from the supersonic sensor(30). The programmable filter(44) passes a supersonic frequency band of the received wave, and has a center frequency, a frequency factor and a gain of the center frequency which are varied according to a control of the micro computer(41).
Patent KR-20000042052-A (KR)
Title: Method for producing high intensity wire rod for concrete steel fiber
Inventor: JEONG HOI YEONG
IPC: C21D8/08
Filed: 1998-12-24
Abstract: PURPOSE: A method for producing a wire rod for steel fiber is provided to have an excellent strength by adding up B, Cr and V elements as a high-intensifying element in a basic element class of the wire rod and performing proper heat-treatment with a wire rod producing condition. CONSTITUTION: Steel is composed of 0.20 to 0.50wt%of C, less than 0.60wt% of Si, 0.20 to 0.80wt% of Mn, less than 0.040wt% of P, less than 0.040wt% of S, more than one kind selected among 0.03 to 0.30wt% of Cr, 0.0003 to 0.005wt% of B and 0.01 to 0.1wt% of V, Fe and impurities. Herein, the steel is re-heated at 950 to 1250°C and is rolled. The steel is wound up at 750 to 950°C and is cooled up to a common temperature at less than 20°C/sec. Lastly, the steel is heated at 900 to 1050°C and is passed through a Pb tub of 400 to 600°C.
Patent KR-20000044670-A (KR)
Title: Method for forming plasma display panel
Inventor: SHIN JAE GWAN
IPC: H01J9/02
Filed: 1998-12-30
Abstract: PURPOSE: A method for forming plasma display panel is provided to remove the reduction of process margin between electrodes and black pattern and reduce process, thereby reducing costs. CONSTITUTION: A method for forming plasma display panel comprises steps of: forming black patterns for increasing contrast and the lower part of bus electrodes with the same black photosensitive paste; and forming the upper part of the electrode with conductive photosensitive paste. The method further comprises steps of: forming black photosensitive paste consisting the lower part of the bus electrode and the black pattern on a front glass substrate; exposing the paste using a mask; coating conductive photosensitive paste on the black paste and then exposing both of the two pastes using a mask.
Patent KR-20000044968-A (KR)
Title: Sterilizer for chopping board
Inventor: PARK HUN CHEOL
IPC: A47L15/48
Filed: 1998-12-30
Abstract: PURPOSE: A sterilizer for a chopping board is provided which is effective in managing a large-scaled feeding facility sanitarily by sterilizing with infrared rays after using a large-scaled chopping board in a raw-fish shop. CONSTITUTION: A sterilizer for a chopping board is comprised of: a cube-formed body(10) having a space to keep a variety of parts inside; a door(12) having a grip installed in the front of the cube-formed body(10) to open and close by moving vertically; a lot of a roller(16) installed at regular intervals in the lower part of the cube-formed body(10) to set the chopping board smoothly; a ventilating fan(22) installed in the ceiling inside of the sterilizing room to cool down the heat inside of the sterilizing room; and a control box installed in a suitable part of the cube-formed body(10) to do various electronic control.
Patent KR-20000046237-A (KR)
Title: Fault signal control apparatus and synchronization method in optical transmission apparatus agent of network management system
Inventor: KIM MIN SEOK
IPC: H04L12/24
Filed: 1998-12-31
Abstract: PURPOSE: A fault signal control apparatus and a synchronization method in the optical transmission apparatus agent of the network management system are provided to achieve system fault processing smoothly by preventing the duplication or loss of a fault signal generated in case of the initialization of a fault or a system. CONSTITUTION: Until all contents of a first queue is completed, a third queue is not carried out. Accordingly, fault signals generated in the first queue are piled up on the third queue. A control unit that received a system initialization event signal sets up an impossible state to a fault generation signal creation flag, and transmits it to the third queue following the fault signals of the first queue in process. If priority order is handed over to the third queue, old fault signals from the third queue are abandoned because the fault generation signal creation flag is in the impossible state. When the system initialization event signal comes out, the fault generation signal creation flag is set up as a possible state so that normal fault generation signals can be created.
Patent KR-19990028891-A (KR)
Title: 고항장력 전해구리박 및 그 제조방법
IPC: C25D1/04
Filed: 1997-05-13
Abstract: 구리박의 조면의 표면거칠기를 평활화시키는 동시에, 항장력, 특히 열후의 항장력을 향상시킨 전해구리박으로서, 구리박의 조면의 표면거칠기 Rz가 2.5㎛이하이고, 열후의 항장력이 40kgf/㎟ 이상인 것을 특징으로 하는 고항장력 전해구리박이 제공된다.   또, 황산구리 및 황산을 주성분으로하고, 철이온 0.5∼5.0g/l, 구조식(-CH 2 CH 2 0-)n로 표시되는 폴리에테르 0.01∼0.10g/l, 황산주석 0.9∼1.8g/l를 함유하고, 또한 염소이온 0.1㎎/l미만의 전해액에 의해 전해하는 것을 특징으로 하는 전해구리박의 제조방법이 제공된다.
Patent KR-20000064331-A (KR)
IPC: H01P1/207
Filed: 1997-08-22
Abstract: A waveguide evanescent mode filter is integrated with a monolithic microwave integrated circuit (MMIC) by forming both the MMIC circuitry and the waveguide filter on a single substrate that forms a common ground plane for both elements. The waveguide has a superstructure with an interior recess that is contoured to provide a desired cutoff frequency. The underlying portion of the ground plane can form the lower portion of the waveguide itself, and can also be contoured to define the cutoff frequency. Adjustable attenuation is provided by a resistive card that can be inserted by different amounts into the waveguide.
Patent KR-19990072121-A (KR)
Title: 감광성 유리를 이용한 조정가능한 광커플러
IPC: G02B6/24
Filed: 1996-12-06
Abstract: 광커플러(10)는 커플링 영역(12)에서 서로 인접한 두 섬유(20, 30)를 갖는다.  상기 두 섬유중 하나는 게르마니아와 같은 감광성 유리로 도핑된 클래드를 갖는다.  상기 감광성 유리는 적당한 복사선에 노출되어 섬유의 굴절률을 변경시키고 커플러(110)를 선택된 커플링 주파수로 조정한다.
Patent KR-20000005312-A (KR)
Title: Tryptase inhibitor and novel guanidino derivatives
Inventor: KIDO HIROSHI
IPC: C07C257/18
Filed: 1997-04-09
Abstract: PURPOSE: Tryptase depressor and novel guanidino derivative have depression activity to tryptase, and are useful to treat and prevent asthma, nephritis, hepatitis, hepatic cirrhosis, pachydermia, psoriasis, influenza, tron disease etc. CONSTITUTION: A tryptase inhibitor comprising as an active ingredient at least one member selected from among guanidinoaliphatic acid derivatives of the formula (I), guanidinobenzoic acid derivatives of the formula (II), guanidinophenol derivatives of the formula (III), amidinophenol derivatives of the formula (IV), and novel guanidinophenol derivatives of the formula (V) (in the formulae, Gu is guanidino). In the formula, R1 represents a hydrogen atom, a halogen atom, a nitro group, an alkyl group, an alkoxyl group, a carboxyl group or an alkoxycarbonyl group, and n represents an integer of 3 to 6, nontoxic salts, acid addition salts or hydrates thereof. R2 represents a phenyl group, a naphthyl group, a substituted phenyl group or a substituted naphthyl group, and R3 represents a various substituting group, nontoxic salts, acid addition salts or hydrates thereof. R4 and R5 represent various substituting groups, nontoxic salts, acid addition salts or hydrates thereof.
Patent KR-19990067900-A (KR)
Title: 플라즈마 화학증착(ｃｖｄ) 장치
IPC: H01J37/32
Filed: 1999-01-05
Abstract: 상부전극의 주위에 부착력이 약한 반응 부생성물이 부착된 것에 의해 파티클(Particle)의 발생을 억제할 수 있도록 한 것이다. 
     플라즈마 화학증착 장치는 진공용기(200)와, 상부전극(210) 및 하부전극(220)을 갖는다.   상부전극(210)의 가스분산판(213)의 단부는 아래로 향한 완상(椀狀; 주발형상)으로 형성되어 있다.   그리고 그 단부는 하부전극(220)의 기판재치면(221)에 재치(載置; 놓여진)된 피처리기판(W)의 상면보다 아래에 연재(延在)되어 있다.
Patent KR-19990037878-A (KR)
Title: 결속이용이한수술용봉합사구조
IPC: A61B17/064
Filed: 1999-02-09
Abstract: 본 발명은 내부에 실로 된 심재가 위치하고 그 표면에는 원통형의 망사로 씌워진 봉합사를 구비한 다음 투관침의 투관 내부에 인입출이 가능한 지지관을 형성하되 지지관 일측 끝단 일정 부위 약 3㎝ 정도에 절단선을 형성하여 손잡이가 되도록 하고 내부에는 봉합사의 굵기만큼 중공된 가이드공에 봉합사를 끼운 다음 일측은 지지관의 손잡이 측단에 고정시키고 타측단은 지지관 입구 전면에 원형의 걸고리가 되도록 매듭을 형성하여 수술 부위를 결속하도록 한 것으로 이의 봉합사 걸고리가 수술 부위에 용이하게 끼워지도록 봉합사 심재에는 경화제를 도포하여 걸고리 형태를 유지하도록 하고 그 표면에는 망사를 씌워서 된 봉합사를 형성하되 걸고리 일정 부위의 심재에는 경화제를 도포하지 않아 결속시 매듭의 고정이 견고하여 수술 후 풀어지는 것을 방지하도록 발명된 수술용 봉합사에 관한 것이다.
Patent KR-19990072635-A (KR)
IPC: B01D53/50
Filed: 1999-02-12
Abstract: 본 발명은 열 교환기 (4) 를 이용하여 연도 가스로부터 열을 회수하여 상기 연도 가스를 냉각시키는 열 회수단계와,  흡수 유체 (D) 에 흡수시켜 연도 가스에 존재하는 적어도 SO 2 를 제거하기 위하여 연도 가스를 흡수탑 (12, 13) 에서 흡수 유체 (D) 와 가스-액체 접촉시키는 흡수 단계를 포함하는 연도 가스 처리 방법에 관한 것이고,  예컨대,  흡수 단계에서 수집 가능한 분말 [예컨대, 석탄  (H)] 을 연도 가스에 분무하는 분말 첨가 수단이 열 회수 단계 이전에 제공되는 특징이 있다.     본 발명은,  연도 가스에 존재하는 SO 3 에 대한 조치를 암모니아 주입에 의존하지 않고 쉽게 달성할 수 있으며,  주입된 물질이 처리된 연도 가스에 잔류하는 단점이 없이 연도가스를 추가로 정화할 수 있는 연도 가스 처리 방법을 제공할 수 있다.
Patent KR-20000056390-A (KR)
Inventor: HONG IN SIK
IPC: G08B29/00
Filed: 1999-02-20
Abstract: PURPOSE: A wireless checking automatic response system for a remote control is provided to effectively, rapidly and accurately check power communication systems located at many different places. CONSTITUTION: A wireless checking automatic response system for a remote control includes a host system and a remote system. The remote system is attached to at least one apparatus to transmit information such as voltage, current and temperature to the host system in the form of binary codes. The host system is constructed of a microprocessor(8051), ROM(Message Data), voice chip(M6376), DTMF decoder(KT3170), and RF-module(FM-418). The remote system is configured of the microprocessor(8051), sensor interface, and RF-module interface.
Patent KR-19990072809-A (KR)
Title: 어드레스메모리의이용효율을증가시킬수있는ａｔｍ스위치회로,및ａｔｍ스위치회로제어방법
IPC: H04L12/933
Filed: 1999-02-20
Abstract: ATM (비동기 전달 모드) 스위치 회로에서, 출력 포트의 총수가 증가될 때에도 어드레스 저장 메모리의 사용 효율이 증가된다.  ATM 스위치 회로는 ATM 셀 버퍼 메모리, ATM 셀 관리부, 어드레스 저장 메모리, 공백 어드레스 관리부, 및 또한 버퍼 어드레스 관리부로 구성된다.  이 ATM 스위치 회로에서, 어드레스 저장 메모리는 출력 포트에 대하여 공통으로 사용될 수 있다.  결과적으로, 출력 포트에 대응하는 어드레스 체인의 길이가 출력 포트의 사용 빈도에 따라 조정될 수 있고, 어드레스 저장 메모리는 복수의 출력 포트에 따라 효과적으로 사용될 수 있다.
Patent KR-19990072914-A (KR)
Title: 식기세척기
IPC: A47L15/42
Filed: 1999-02-24
Abstract: 본 발명은 식기 세척기에 사용되는 히터 파이프를 제작하는 데 있어서, 그 변형을 억제하는 동시에, 생산성이 양호한 식기 세척기의 제공을 목적으로 하는 것이다. 
     이 목적을 달성하기 위해 본 발명에서는 전열 부재의 형상을 히터 파이프 형상과 대략 동일 반경의 반원통 형상으로 하는 동시에, 히터 파이프와 전열 부재를 코오킹함으로써 고정했다.
Patent KR-20000060481-A (KR)
Inventor: NOH JAE SEONG
IPC: H01L21/768
Filed: 1999-03-16
Abstract: PURPOSE: A capacitor of a semiconductor device using a high-permittivity dielectric layer and a fabrication method thereof are provided to improve process margin and contact stability. CONSTITUTION: A doped layer(11) is formed near a surface of a semiconductor substrate(10), and an interlayer dielectric(12) is formed on the substrate(10). The interlayer dielectric(12) has a contact hole(13) reaching the doped layer(11) and filled with conductive material. Then, a first oxide layer(14), a nitride layer(15) and a second oxide layer(17) are successively formed on the interlayer dielectric(12), exposing the contact hole(13). A diffusion barrier(19) is next formed on overall exposed surfaces, and a lower electrode(20b) is formed thereon. After the diffusion barrier(19) and the lower electrode(20b) above the second oxide layer(17) are removed, a high-permittivity dielectric layer(21) is formed on the lower electrode(20b), the diffusion barrier(19) and the second oxide layer(17). Finally, an upper electrode(22) is formed on the high-permittivity dielectric layer(21).
Patent KR-20000061960-A (KR)
Inventor: JEONG GYU SIG
IPC: B01D24/00
Filed: 1999-03-31
Abstract: PURPOSE: A method for preparing acryl filter and the filter prepared by the method are provided, which acryl filter is used to filter rust or floating contained in tap water or underground water. CONSTITUTION: The method comprises the steps of mixing acryl bead of 0.1-0.5 mm and methanol in the ratio of 1: 0.7-0.9; injecting the mixture into the lower mold and molding it with the upper mold; radiating high frequency wave to the mixture to heat it at 60-75°C for 10-15 with rotating the lower and upper molds, to make filter having pores; taking off the molded filter from the mold; and cooling the filter slowly by using clean and dry air. The pore size of the filter is preferably 3-5 micrometers.
Patent KR-20000065780-A (KR)
Inventor: BAE JONG DEUK
IPC: D06F37/40
Filed: 1999-04-09
Abstract: PURPOSE: A gear housing of clutch for full automation washing machine is provided to simplify the fabrication process and reduce costs. CONSTITUTION: A gear housing of clutch for full automation washing machine comprises a gear housing(101), a metal ring(111) and a coupling unit. The gear housing(101) is fabricated by injection method of synthetic resin. The metal ring(111) is inserted into the outer surface of the gear housing(101) to be contacted with a brake band(5) for minimizing the damage of the gear housing due to frictional force between the gear housing and the brake band. The gear housing is coupled to the coupling unit dewatering shaft(121) by the coupling unit.
Patent KR-19990083560-A (KR)
Title: 타이어제조방법및조립드럼
IPC: B29D30/24
Filed: 1999-04-28
Abstract: 본 발명은 반경방향으로 팽창 가능한 타이어 제조용 조립 드럼(1)에 관한 것으로서, 상기 드럼은 중심축(2)에 부착되고 조립되는 제품을 위한 수용면(3)을 제공하는 본체(10)를 가지며, 상기 수용면의 단부는 서로 다른 직경을 가지며, 상기 드럼은 소직경측 수용면(3) 단부를 둘러쌀 수 있는 신축성 수단(31) 및, 두 가지 독립적인 팽창 상태로 드럼을 팽창시키는 수단(17, 56, 57)을 갖는다.
Patent KR-20000072895-A (KR)
Inventor: PARK GI HWAN
IPC: H01L21/304
Filed: 1999-05-03
Abstract: PURPOSE: An exhaust apparatus of a wet processing equipment for manufacturing a semiconductor device is provided to prevent a crack or deterioration of a sink so that cleaning liquid is not leaked and the equipment is not deteriorated, by establishing an auxiliary sink having a coolant supplying line. CONSTITUTION: In an exhaust apparatus of a wet processing equipment for manufacturing a semiconductor device, an auxiliary sink(21) having a coolant supplying line(22) is established in a position wherein cleaning liquid is overflowed or exhausted from a quick drain bath(11). The sink(12) is established in a lower part of the quick drain bath.
Patent KR-20000073693-A (KR)
Inventor: KANG JEONG YEON
IPC: G06F9/44
Filed: 1999-05-13
Abstract: PURPOSE: A method for exchanging boot-ROM and a boot-ROM structure for a microprocessor application system is provided for exchanging a boot-ROM using another booting code which is not damaged when a booting code is damaged when a corresponding booting code is executed. CONSTITUTION: A microprocessor checks a selection flag(310) is checked when exchanging a boot-ROM(300). In the case that the selection flag(310) is "P", the main boot loader(325) executes a booting program by copying the main booting code(320) of the region "P" into a RAM(not shown) in accordance with a control of the microprocessor. In the case that the selection flag(310) is "S", the sub-boot loader(335) executes a booting program by copying the sub-booting code(330) of the region "S" into the RAM in accordance with a control of the microprocessor.
Patent KR-20000074380-A (KR)
Inventor: LEE JE GI
IPC: F16H61/04
Filed: 1999-05-20
Abstract: PURPOSE: A control method for the shifting of an automatic transmission for a vehicle is provided to improve the performance of shifting and ride comfortableness by reducing a shock generated at the end of the shifting. CONSTITUTION: A shifting signal of D-R is inputted. First and second pressure control solenoid valves(PCSV-A,B) control duty. The second pressure control solenoid valve keeps 0% of duty. The first pressure control solenoid valve is controlled to 0% of clip duty. After a certain fill time passes by, the duty is increased to Da and controlled to a certain reducing inclination. A transmission lever detects the time of staying in an N range. The detected time satisfies a certain condition so that a target backup point is outputted. When a turbine change rate reaches the target backup point, the duty is increased to Da1 and controlled to a second reducing inclination. Then a shifting shock is decreased.
Patent KR-20010003326-A (KR)
Inventor: KIM YEON GI
IPC: B09B3/00
Filed: 1999-06-22
Abstract: PURPOSE: An apparatus for crushing and drying waste is provided for enhancing productivity and reducing production cost by the simple construction of the apparatus to evaporate moisture of waste to provide dried powder type materials. CONSTITUTION: An apparatus for crushing and drying waste comprises a case(1) both of inner and outer chambers being placed inside. The outer chamber(3) circulates heat transfer medium and the inner chamber(2) has several cutters fixed and spaced at a certain interval near the external periphery of a shaft. The shaft(6) is able to rotate and attached into the inner chamber. The cutters(7) can cut and move the waste toward an outlet of the inner chamber. Each air outlet(9) is linked to an air outlet pipe(10) in order to discharge the air introduced into an air inlet of the inner chamber out of the inner chamber.
Patent KR-20000011640-A (KR)
Inventor: DOMINIC CHRISTOPHER J
IPC: H01L21/56
Filed: 1999-07-12
Abstract: PURPOSE: A method for manufacturing a semiconductor package is provided to harden the adherent agent for attaching a die and at the same time to seal a wire bond by one heating step. CONSTITUTION: The manufacturing method has the steps of: spraying the adherent agent having a green strength on one face of a substrate or one face of a chip; connecting the chip and the substrate with the adherent agent by contacting the chip and the substrate in a state that sufficient pressure and heat are applied to the substrate so as to form a crack between the chip and the substrate that the adherent agent does not exist; wire-bonding the chip on the substrate; supplying a sealer composite having a hardened chemical substance capable of using with the adherent agent and a hardening profile; spreading the sealer along with the edge of the chip to charge the sealer into the crack; treating the result assembly for a sufficient time at a sufficient temperature to harden the sealer.
Patent KR-20010011393-A (KR)
Inventor: HUH TAE HUN
IPC: B65D5/00
Filed: 1999-07-28
Abstract: PURPOSE: A paper box for packing a cellular phone is provided to safely deposit a cellular phone and peripheries by forming proper structure of a paper box proper and to maximize productivity by simplifying a working process. CONSTITUTION: A bottom plate(11) and a casing assembly(10) composed of wall plates(12,13,14) and a lid plate(16) are made of corrugated cardboard. An inner assembly(20) for dividing the inner space of the casing assembly is made of the corrugated cardboard. The inner assembly is composed by forming a first piece(23) having assembling plates(21,22) connected to a first plate(231) from one wall plate except for the rear wall plate and continuing to lengthwise extending bending lines(21a,22a). Second and fourth pieces(24,26) are set up of middle folding lines(242,261) to be narrower than the first piece by connecting a second plate(241) with the first piece. A third piece(25) in the same width as the assembling plates is connected between the second and fourth pieces. A fifth piece(27) in the same width as the first piece is connected to the fourth piece via a third plate(271). Finally, assembling grooves(28,29) are formed on both ends including one portion of the second and fourth pieces.
Patent KR-20010026277-A (KR)
Inventor: YOON SEONG JUN
IPC: B29C43/20
Filed: 1999-09-04
Abstract: PURPOSE: A production method for a ceiling material for construction is provided to improve a sound absorbing effect by simultaneously molding complex materials having different physical properties and to have soft and elegant qualities. CONSTITUTION: A fire resistant polypropylene resin is inputted and molten in an injector. After the molten resin(52) is discharged from a nozzle while moving the injector back and forth, the molten resin is injected to a lower mold(22). Herein, the temperature of the injected resin is 200 to 220deg.C and the injection of the nozzle is widely spread. After finishing injecting the resin, the injector is returned to an original position and a nonwoven fabric is put on the resin surface. The resin and the nonwoven fabric are pressurized by descending an upper mold(20). The nonwoven fabric is adhered to the resin by the natural heat of the resin. While the resin is equally spread in the upper and lower molds by the molding pressure, the resin and the nonwoven fabric are integrally molded. The molded resin is separated by opening the upper and lower molds after a specific time. Then a ceiling material is produced.
Patent KR-20010027289-A (KR)
Title: Apparatus for improving water quality of reservoir
Inventor: KIM PAEK KI
IPC: C02F7/00
Filed: 1999-09-13
Abstract: PURPOSE: An apparatus for improving the water quality of reservoir is provided which is not overthrown by wind and improves efficiency of driving force since a height of the apparatus is parallel to the water level of reservoir and wind is collected to the side of a driving impeller. CONSTITUTION: The apparatus comprises a base frame (10) floating on water of reservoir through a plurality of buoyant materials (1,2,3) installed on the bottom surface of the base frame (10); driving fans (30,40) which are rotationally installed at both sides of the base frame (10); circulation fans (70,80) which are installed on the same axis as the driving fans and submerged in the water; a guiding tube (60) surrounding the circulation fans, wherein the lower part of the guiding tube (60) is placed at the bottom part of the reservoir, a discharging port is installed at the upper part of the guiding tube (60) so that water under the apparatus is discharged into the discharging port by the circulation fans (70,80); and a guide member (20) guiding wind so that the wind is collected to the side of the driving fans (30,40).
Patent KR-20010036193-A (KR)
Inventor: KIM TAE MIN
IPC: F04B53/00
Filed: 1999-10-06
Abstract: PURPOSE: A discharge noise reduction apparatus for hermetic compressor is provided to reduce discharge pulse and noise of the compressed working fluid by dividing the internal space of the noise reduction unit into plural sections. CONSTITUTION: An apparatus comprises a silencing chamber(30) protruded from a compressor frame(2) and which has a space for receiving the compressed working fluid; a silencing chamber cover(40) for shielding the internal space of the silencing chamber from outside so as to form a silencing space; and a sectioning plate(45) for sectioning, into two chambers(31,31'), the silencing space formed by the silencing chamber cover. The two chambers are sectioned again into a plurality of silencing spaces(31a,31b,31c,31d), and the working fluid transferred to the silencing chamber flows through the silencing spaces in turn. Thus, the working fluid has a significantly reduced pulse, thereby reducing noise and vibration.