baber/WOPTO huggingface dataset:
Patent KR-20070122164-A (KR)
Title: Resonant scanning mirror
Inventor: DEL PUERTO SANTIAGO E
IPC: H01L21/027
Filed: 2007-06-22
Abstract: A resonant scanning mirror is provided to embody rotation without distortion by removing vibration while using a synchronous scanning mirror. An illumination system(IL) conditions a radiation beam received from a radiation source(SO) operating at a first frequency. A patterning device(PD) patterns the radiation beam. A wafer table(WT) supports a wafer(W) and scans the wafer at a scanning speed. A scanning device includes a reflection device and a plurality of flexures. A projection system(PS) includes the illumination system, the patterning device, the wafer table and the scanning device. The plurality of flexures is constructed to resonate with respect to the rotation axis of the reflection device. The scanning device is constructed to scan the patterned beam to a target region of the wafer. The resonant frequency of the scanning device is substantially the same as the first frequency, synchronized with the scanning speed. The scanning device can include a driving system that is constructed to resonate as a second frequency with respect to the rotation axis of the reflection device.
Patent KR-20080114349-A (KR)
Title: Array inkjet head and inkjet image-forming apparatus adopting the same
Inventor: CHOI SIK SUN
IPC: B41J2/04
Filed: 2007-06-27
Abstract: An array ink-jet head and an ink jet image forming apparatus including the same are provided to prevent short circuit of the printed circuit board due to ink by sealing around the head chip. An array ink-jet head comprises first and second members(151,152), a third member(153) in which a plurality of base modules(154) equipped with head chips(155) are arranged, and a cover member(160) which includes a plurality of aperture holes(161) formed in the longitudinal direction in order to expose the head chips and a plurality of concave parts(164) formed at fixed intervals between the base modules, where the first to third members and the cover member are laminated in sequence.
Patent KR-20090001297-A (KR)
Inventor: KONG KEUN KYU
IPC: H01L21/28
Filed: 2007-06-29
Abstract: 본 발명은 반도체 소자의 미세 콘택홀 형성 방법에 관한 것으로, 피식각층 상부에 스페이서가 형성된 제 2 하드마스크층 패턴을 형성하고, 상기 스페이서를 마스크로 하부의 제 1 하드마스크층을 식각하여 미세한 선폭을 가지는 제 1 하드마스크층 패턴을 형성한다.  
     다음에, 상기 제 1 하드마스크층 패턴을 식각 마스크로 피식각층을 식각하여 미세한 선폭을 가지는 콘택홀을 형성함으로써, 미세한 선폭의 형성을 위한 레지스트 플로우 공정(Resist Flow Process) 시 발생하는 패턴 비대칭과 패턴 시프트 현상을 근본적으로 방지하여 소자의 특성을 향상시키는 기술을 개시한다.
Patent KR-20090002466-A (KR)
Title: Filter for touch screen by using ir sensor and touch screen for thereof
Inventor: EOM DO JAE
IPC: G06F3/041
Filed: 2007-06-29
Abstract: A filter for a touch screen using an infrared sensor and the touch screen using the same are provided to prevent infrared ray reflected or refracted by a combining surface of a filter and the side of a protection panel. A light emitting part(400) radiates infrared ray including a light emitting device. A light receiving part receives infrared ray emitted from the light emitting part. The light emitting part and light receiving part are arranged in the front side of the display unit(420). A display part displays a menu for inputting the screen. The display displays the menu for inputting the screen.
Patent KR-20090006434-A (KR)
Title: A manufacturing method for multi-stack semiconductor device having contact plugs
Inventor: LEE JUN WON
IPC: H01L21/28
Filed: 2007-07-11
Abstract: The method of manufacturing the semiconductor device of the multi-layered structure is provided to prevent the short defect or the short failure caused by the contact plug. The bottom insulating layer(222) is formed on the semiconductor substrate. The upper insulating layer(231) is formed on the bottom insulating layer. The preliminary contact hole passing through the upper insulating layer and bottom insulating layer is formed. The upper contact hole(250H') extends the preliminary contact hole and passes through the upper insulating layer. The lower contact hole (222H') passes through the bottom insulating layer.
Patent KR-20090013374-A (KR)
Title: The raman spectrometer using single beam led
Inventor: LEE KWON JAI
IPC: G01J3/44
Filed: 2007-08-01
Abstract: A Raman spectrometer using a mono-light LED(Light Emitting Diode) as a light source is provided to prevent the temperature of a sample from abruptly increasing and block the sample from being damaged even when light is irradiated to the sample for a long time by using LEDs. A Raman spectrometer using a mono-light LED as a light source generates parallel light from the LED light source, focuses the parallel light, irradiates the focused light to a sample and detects light scattered by the sample with a detector. The light generated from the LED has low energy density even after focused so that it is possible to observe the sample in a normal state for a long time.
Patent KR-20090013599-A (KR)
Title: Immunostimulants including the lytic extract of streptomyces albus
Inventor: KIM JONG MAN
IPC: A61P37/02
Filed: 2007-08-02
Abstract: An immunostimulant containing the lystic extract of Streptomyces albus is provided to reinforce the functions of various immune cells having the major role in the disease defense, thereby increasing the specific and nonspecific resistance to the disease infection of animals. The immunostimulant contains the lystic extract of Streptomyces albus which is prepared by cultivating Streptomyces albus in yeast malt extract agar broth at 26 deg. C for 72 hours, centrifuging the cultured fluid at 3000Xg for 30 minutes and collecting it, rinsing the collected pellet with phosphate buffered saline(PBS) of pH 7.2 and suspending the rinsed pellet in PBS, adding 5% of TNT solution containing 50mM of Tris-HCl, 0.15M of NaCl and 4% Triton x-114 as solubilizing agent into the Streptomyces albus suspension, stirring the mixture at room temperature for 2-3 days to solubilize the Streptomyces albus, and regulating pH of the solution to 6.5-7.2, and drying the solution in the thermostatic chamber.
Patent KR-20090014541-A (KR)
Title: Optical modulator having multiple ribbon structure
Inventor: AN SEUNG DO
IPC: G02B26/10
Filed: 2007-08-06
Abstract: An optical modulator having multiple ribbon structure is provided to enable black level correction by adjusting displacements of all the ribbon belonging to a first ribbon group and a second ribbon group. A first driven ribbon group(RS1~RS6) and a second driven ribbon group(R1~R6) having one or more ribbons(300a~300n) are spaced on a substrate(310) at regular intervals and are driven in up and down directions in accordance with an applied voltage. Incident light is modulated by relative displacement difference between the first driven ribbon group and the second driven ribbon group.
Patent KR-20090015662-A (KR)
Title: Opening and shutting contrivance of keeping covers for vinyl plastic house
Inventor: JANG HO CHUL
IPC: A01G9/24
Filed: 2007-08-09
Abstract: A device for opening or closing the insulation cover of a vinyl house is provided to lower the installation cost and to allow it to be opened or closed manually even in case of the disorder of an electric motor. A device for opening or closing the insulation cover of a vinyl house comprises a small vinyl house(2) installed inside the vinyl house(1); an insulation cover(3) covered on the skeleton(2a); strings(4, 5) for opening and closing adhered along the opening and closing part(3a) at a constant interval so as to open or close the insulation cover by pulling the strings; guides for the opening and closing strings; and an electric motor.
Patent KR-20080053166-A (KR)
Title: Apparatus and method for feedback path distortion compensation using tone signal generation
Inventor: SEO JAE HYUN
IPC: H04N7/015
Filed: 2007-08-17
Abstract: An apparatus for reverse path compensation using a tone signal in a digital broadcasting system, and a method thereof are provided to predict size and phase distortion in a transmission band generated in a reverse path for transferring signals, coupled in channel filter output, to a VBS demodulator in the VBS(Versatile Side Band) transmitter and repeater of the terrestrial digital broadcasting system by using the tone signal to compensate the reverse path, thereby improving the performance of a preequalizer. A reference signal generator(207) generates a reference RF(Radio Frequency) signal. A reverse path prediction unit(213) predicts transmission band property information about a reverse path based on the reference RF signal. A reverse path compensation unit(214) compensates a demodulation signal transferred through the reverse path on the basis of the transmission band property information about the predicted reverse path. A first switching unit(208) selects one of an RF signal, the output signal of a channel filter of a transmitting terminal, and the reference RF signal according to a switching control signal and outputs the selected signal to the reverse path. A second switching unit(211) selects one of a demodulator and the reverse path prediction unit and outputs a digital IF(Intermediate Frequency) signal transferred through the reverse path to the selected one according to the switch control signal.
Patent KR-20090019981-A (KR)
Title: 토크컨버터용 마찰재
Inventor: KOOK JAE CHANG
IPC: F16H45/02
Filed: 2007-08-22
Abstract: 본 발명은 토크컨버터용 마찰재에 관한 것으로서, 특히 피스톤에 장착되는 마찰재에 대한 불필요한 원가 소모를 줄이기 위한 장치에 관한 것으로, 토크컨버터(1) 내부에 마련되는 터빈과 프런트커버(30) 사이에 장착되는 피스톤(100)과; 상기 피스톤(100)의 일측면에 부착되어 상기 프런트커버(30) 내측에 대응하도록 마련되는 제1마찰부재(210)와; 상기 피스톤(100)의 일측면에 부착되되, 상기 제1마찰부재(210)의 내주부에 마련되는 제2마찰부재(220)로 구성되어, 토크컨버터로부터 슬립락업시 사용되는 영역과 풀락업시 사용되는 영역의 마찰재를 피스톤에 차등 분할하여 장착함으로써, 토크컨버터의 원가를 절감시킬 수 있도록 하는 것이다. 
       
     토크컨버터, 프런트커버, 피스톤, 마찰재, 락업, 슬립
Patent KR-20080020543-A (KR)
Title: Fiber optic coil and method for producing it
Inventor: SUZUKI MASAYOSHI
IPC: G02B6/46
Filed: 2007-08-29
Abstract: An optical fiber coil and a manufacturing method thereof are provided to facilitate a manufacturing process of the optical fiber coil by using an optical fiber ribbon having plural single core lines arranged in parallel to each other in a tape-like shape. An optical fiber coil includes plural single-core lines(1), which are arranged in parallel to each other. The single-core lines are coated by a coating portion(S) and integrated with each other to form an optical fiber ribbon(11). The optical fiber ribbon is wound in a coil-like shape. The coating portion is made of a silicon rubber. Alternatively, the coating portion is made of a fire retardant rubber or a chloroprene rubber.
Patent KR-20080023206-A (KR)
Title: Method and apparatus for loading a read/write head to a spinstand
Inventor: COLLINS GRAHAM
IPC: G11B21/02
Filed: 2007-09-07
Abstract: A method and an apparatus for loading a read/write head to a spinstand are provided to improve precision of loading a head gimbal assembly and to exclude affect of vibration to test result. An apparatus for loading a read/write head to a spinstand comprises a loading portion, a first station, a first automation device, and a deck. The loading portion receives at least one head(101) to be tested. The first station has a coarse precisor to provide coarse positioning of the head. The first automation device transmits the head to the coarse precisor to pickup the head from the loading portion. The deck with a test station where the head is tested includes a fine precisor to provide a second fine positioning of the head, and a second automation device to transmit the head to a fine precisor for a second fine precising of the head by picking up the head from the first station and the head picked up from the fine precisor to the test station.
Patent KR-20090029909-A (KR)
Title: Microphone for blocking time division multiple access noise
Inventor: JANG WON HOON
IPC: H04R3/00
Filed: 2007-09-19
Abstract: A microphone device for blocking time division multiple access noise is provided to block interference of an RF signal radiated from an antenna device, thereby blocking the time division multiple access noise. A microphone device for blocking time division multiple access noise comprises a printed circuit board(400), a microphone unit(300), shielding units(320,330) and a connection unit(321). A ground unit(401) is formed on the printed circuit board. The shielding unit surrounds the microphone unit. And the shielding unit blocks time division multiple access noise generated by interference of an RF frequency. The connection unit electrically connects the shielding unit and the ground unit.
Patent KR-20090029921-A (KR)
Title: The portable terminal which has built-in the g.p.s where measure distance and fee converted indication function are added
Inventor: SON YEOUNG SU
IPC: H04B1/40
Filed: 2007-09-19
Abstract: A portable terminal having a GPS to which distance estimating and calculated fare displaying functions are added is provided to ask exact fare of a measured distance, thereby removing irrational element between a user and a service provider. A portable terminal(100) having a GPS(Global Positioning System) comprises a distance estimation mode selecting unit(10), a GPS receiving unit(20), a distance estimation starting unit(30), a distance estimation storage unit(40), a distance estimation terminating unit(50), a fare calculating unit(60) and a fare display unit(70). If distance measurement is started by the distance estimation starting unit, the distance estimation storage unit stores an estimated distance. The distance estimation terminating unit terminates distance measurement at a destination. The fare calculating unit calculates fare by the measured distance.
Patent KR-20090030146-A (KR)
Title: 자동 전압 선택장치
Inventor: KIM TAE YUN
IPC: H02M1/10
Filed: 2007-09-19
Abstract: 본 발명은 입력 전압의 크기에 따라 자동적으로 출력 전압이 선택되게 함으로써 입력전압의 크기에 따라 선택 스위치를 절환하는 불편을 없애도록 하는 것으로, 입력 전압에 따라 출력을 선택하는 것이다. 
     이러한 본 발명은 입력 전압을 실효치로 계산하여 DC로 변환시키는 전압변환부를 구비하고, 상기 전압변환부의 출력을 디지털 데이터 변환시키는 디지털 변환기를 구비하며, 상기 디지털 변환기의 출력값을 미리 정해놓은 출력 전압에 따른 데이터값과 비교하여 서로 일치하는 출력전압을 선택하는 선택신호를 출력시키는 연산장치를 구비하고, 상이 연산장치의 선택신호에 의해 입력 전압으로부터 출력전압을 선택하는 스위칭수단을 구비함으로써 이루어지게 된다. 
       
     전압, 선택, 실효치, 비교
Patent KR-20090035261-A (KR)
Title: Apparatus for recharging a module of electric double layer capacitors
Inventor: CHOI SOON JOO
IPC: H02J7/02
Filed: 2007-10-05
Abstract: An apparatus for recharging a module of electric double layer capacitors is provided to prevent the short phenomenon and minimize the power loss by using the structure of minimizing the power loss and generating the voltage drop. The electric double layer capacitor module comprises one or more electric double layer capacitor. The power transformer(801) converts the input power source which is input from outside into the internal power for the electric double layer capacitor module. The inductive load(802) is connected to the power transformer and generates the voltage drop. The rectifier(803) is connected to the inductive load and changes the AC power supply to the DC power supply. The control module(804) determines the supply of the power to the electric double layer capacitor module.
Patent KR-20090035792-A (KR)
Title: Memory access method and apparatus for texture mapping
Inventor: KWON KWON TAEK
IPC: G06T1/00
Filed: 2007-10-08
Abstract: A memory access apparatus for rapidly performing texture mapping operation and a method thereof are provided to read out texel(texture element) from a cache memory when a plurality of texels is needed for performing texture mapping operation about one pixel. A cache memory(130) stores one texture image among one or more texture images stored in a main memory(120). A dividing bit digit determining member(140) determines a number of split bits about a texture image(110) in order to store cache memory. An index matching part(150) matches index to each texel composing texture image in order to store the cache memory in consideration of the digit of the division bit. An inspecting part(160) inspects whether to generate a hit of cache memory about the texel.
Patent KR-20090038539-A (KR)
Title: Method, terminal and server for setting content update time for content transmission
Inventor: PARK JONG KWAN
IPC: G06Q50/10
Filed: 2007-10-16
Abstract: A method for managing a contents transmission schedule, and a contents transmission server and terminal therefor are provided to enable a subscriber to update contents included in a channel where he/she is subscribed at a desired time. A database(111) associates/stores contents with a specific channel, and stores contents update-available time information. A contents transmission schedule manager(112) receives a request for the contents update-available time information and transmits the pre-stored contents update-available time information. The contents transmission schedule manager receives a request for registering the contents update-available time information, and associates/updates/stores the received request with a subscriber. A contents transmission manager(113) transmits the contents to the terminal based on the time information.
Patent KR-20090039367-A (KR)
Title: Aquatic plant
Inventor: JUNG KWAN SEEN
IPC: A01K63/00
Filed: 2007-10-18
Abstract: An aquarium including the sewage disposal tank is provided, in which the contaminated water is emitted by the atmospheric pressure through the contaminated water exhaust line at the upper part of the filter. An aquarium comprises: a fish storage room(120) classified by a partition; a drain groove(121) and a draining board(122) formed in the floor of the fish storage room; a contaminated water exhaust line(123) connecting the fish storage room and a sewage disposal tank; a filter(124) formed in the middle of the sewage disposal tank and the outlet of contaminated water exhaust line; and a pump which is installed at the water tank supplying the water cleaned by the filter to the fish storage room.
Patent KR-20090051994-A (KR)
Inventor: CHOI SEUNG CHUL
IPC: H04W24/10
Filed: 2007-11-20
Abstract: 본 발명에서 사용자 단말기는 복수개의 진단 및 감시 정책들 중에서 하나를 선택한 후, 진단 및 감시 객체, 진단 및 감시 주기, 메모리 할당 크기 중 적어도 하나를 포함하는 진단 및 감시 설정 정보를 휴대 단말기로 전송하고, 이를 수신한 휴대 단말기가 상기 진단 및 감시 객체에 대한 진단 및 감시 기능을 수행한다. 이 때, 휴대 단말기는 상기 진단 및 감시 기능의 수행 결과에 따라 생성된 진단 및 감시 정보를 상기 선택된 진단 및 감시 정책들을 따라 사용자 단말기로 전송함으로써 상기 객체에 대한 효율적인 진단 및 감시를 수행할 수 있다. 
       
     휴대 단말기, 진단, 감시, 정책, 메모리
Patent KR-20090052470-A (KR)
Inventor: KIM HYUN TAE
IPC: C25D3/22
Filed: 2007-11-21
Abstract: 본 발명은 강판 표면에 형성된 Ni: 8~12 중량%를 포함하는 아연니켈 선도금층 1~9g/m 2  및 상기 아연니켈 선도금층 상에 형성된 8g/m 2  이상의 아연도금층을 포함하며, 상기 아연도금층의 형성시 전류밀도는 상기 아연니켈 선도금층 형성시 전류밀도의 1.1~1.5배임을 특징으로 하는 복층 아연도금 강판 및 이러한 강판을 제조하는 방법에 관한 것이다. 
     본 발명에 의한 복층 아연도금강판은 적정한 아연-니켈합금 선도금층 및 아연 전기도금에 의한 아연도금층을 포함하며, 도금층 형성시 최적의 전류밀도 비율을 결정함으로써, 내식성, 밀착성 및 표면백색도가 우수하며 선형 마크가 생기지 않는 표면 외관을 갖는다. 
     아연니켈 선도금층, 복층 아연도금강판, 전류밀도, 탄도금, 표면백색도
Patent KR-20090053116-A (KR)
Inventor: SUN HAK KYOO
IPC: B23K9/32
Filed: 2007-11-22
Abstract: 본 발명은 스터드 용접기의 스터드 핀 고정용 스터드 척에 관한 것이다. 
     본 발명은, 내면 길이 방향을 따라 소정 길이의 삽입공이 형성되고, 상기 삽입공과 연통하는 연통공이 형성된 스터드 척 본체; 및 상기 연통공에 일정 부위 삽입되어 상기 삽입공에 삽입된 스터드 핀을 지지하는 스터드 핀 지지수단을 포함하여 구성되는 것을 특징으로 한다. 
     본 발명에 의하면, 스터드 척에 삽입된 스터드 핀이 마그네트의 자력에 의해 상기 스터드 척 내부에서 소정 길이로서 수납된 상태를 유지할 수 있으므로 용접 작업성이 크게 향상되고, 상기 스터드 핀을 지지하기 위해 상기 스터드 척에 절개부나, 걸림홈, 고무링과 같은 다수의 스터드 핀 지지수단을 별도로 구비하지 않아도 되므로 원가 측면에서 유리한 효과가 있다. 
     또한, 필요시 상기 스터드 핀을 당김에 따라 스터드 핀이 스터드 척에서 쉽게 분리되므로 스터드 핀의 조립 및 이탈 작업이 매우 용이한 효과가 있다. 
       
     스터드 용접기, 스터드 건, 스터드 척, 스터드 핀, 마그네트
Patent KR-20090053315-A (KR)
Inventor: YAMAMOTO TATSUYA
IPC: B60S3/00
Filed: 2007-11-23
Abstract: 건조는 충분히 적절하게 이루어지고, 소음을 낮출 수 있는 세차기를 제공한다. 
     세정수단에 의해 피세정 차량(5)의 세정을 실시하고, 건조수단에 의해 피세정 차량(5)의 건조를 실시하는 세차기이다.  건조수단을, 노즐(61,68)과 노즐(61,68)에 접속한 블로어 장치(31)로 구성하였다.  노즐(61,68)에는, 송풍로(61D)를 형성하는 벽체(61B)에 개구부(62)를 형성하였다.  개구부(62)를 덮을 수 있도록 벽체(61B)의 바깥면측에 흡음재(63)를 배열설치하고, 흡음재(63)를 바깥측으로부터 덮는 커버체(64)를 벽체(61B)에 고정하였다.  노즐(61,68)에 있어서의 송풍로(61D)의 단면 치수를 전혀 바꾸지 않고도, 바람을 긴 슬릿형상의 분출구(61a,68a)에 대해서 균일상태로 분배할 수 있다.  토출되는 바람의 흐름을 따라서 위치하고 있는 흡음재(63)에 의해, 노즐(61,68)에서 발생하는 소음을 적절하게 흡음하여 흡음 효과를 향상할 수 있고, 이로써 세차기의 소음을 낮출 수 있다.
Patent KR-20090054096-A (KR)
Inventor: KIM DONG HYUN
IPC: G01N21/25
Filed: 2007-11-26
Abstract: 국소 표면 플라즈몬 센서가 개시된다. 본 발명에 따른 국소 표면 플라즈몬 센서는 프리즘; 상기 프리즘 상단에 구비된 기판; 상기 기판 상단에 서로 간에 커플링이 일어나지 않을 정도의 간격으로 이격되도록 배열되는 다수의 금속선들; 상기 금속선들 중 임의의 금속선에서 국소 표면 플라즈몬 공명 현상이 일어나도록 상기 임의의 금속선에 입사광을 발광하는 광원; 및 상기 임의의 금속선에서 일어난 표면 플라즈몬 공명 현상에 의하여 변화된 광을 검출하는 수광부를 포함하는 것을 특징으로 한다. 이러한 본 발명에 의하면 시료의 특정 영역에 대하여 보다 정확히 정략 분석 및 정석 분석을 할 수 있다.
Patent KR-20090058366-A (KR)
Title: Composition of new herb medicine for anti-cancer and anti-chemotherapy side effect activities
Inventor: KIM SUNG HOON
IPC: A61K36/284
Filed: 2007-12-04
Abstract: An oriental medicine composition having anticancer activity and inhibition effect of side effect of anticancer drug is provided to decrease the toxicity of liver and kidney by administration of anticancer drug and increase anticancer activity. An oriental medicine for suppressing the toxicity of liver and kidney by the administration of anticancer drug comprises 10-15 wt.pt. of Astragali Radix, 5-10 wt.pt. of ginseng, 5-10 wt.pt. of hoelen, 5-10 wt.pt. of Atractylodis Rhizoma alba, 5-10 wt.pt. of Polygonati Rhizoma, 5-10 wt.pt. of Dolichoris Semen, 5-10 wt.pt. of Discoreae Rhizoma and 10-15 wt.pt. of Coicis Semen. The amount of administration of the oriental medicine composition is 5-20 mg/kg. The anticancer drug is cisplatin.
Patent KR-20090059775-A (KR)
Title: Dc power supply having variable output voltage according to load current variation
Inventor: RYU BYOUNG WOO
IPC: H02M3/28
Filed: 2007-12-07
Abstract: A DC power supply unit is provided to maintain optimum efficiency by reducing variation of a resonant frequency. A DC power supply unit includes an AC/DC conversion part(110), a DC/DC conversion part(120), and a control part(130). The AC/DC conversion part includes a filter, a rectifier, and a power factor corrector. The filter removes electromagnetic interference of a commercial AC power. The rectifier rectifies and smoothes the AC power from the filter. The power factor corrector corrects a rectified power, and outputs a DC power. The DC/DC conversion part converts a voltage level of the DC power. The control part varies a voltage level of the DC power by controlling conversion of the voltage level of the DC power according to a change of a load current of the output power from the DC/DC conversion part.
Patent KR-20090064872-A (KR)
Title: Washstand drainage system
Inventor: HEO MYUNG SUN
IPC: E03C1/23
Filed: 2007-12-17
Abstract: A washstand drainage system is provided to solve the generation of bad smell fundamentally by preventing foreign materials from being laminated on the path of a drainpipe. A washstand drainage system comprises: a faucet arranged on the rear part of a upper surface of a washstand; a drainpipe(3) coupled on the center of the washstand; a drain valve(10) which is inserted into the drainpipe inside the upper end, and opens and closes with a valve head(11); and an actuating rod(20) being upwardly exposed behind the faucet and opening and closing the drain valve. The drain valve is made of the valve head and the elevating rod(12). A rotator(13) is fixed to the bottom of the elevating rod with a fixing screw(14) to be rotatable. Two reentrant grooves(15) are formed on the side wall of the rotator at a right angle. A permanent magnet(16) is inserted and fixed to the reentrant groove. An elevation ring(30) is inserted into the external periphery portion of the drainpipe and is fixed with a fixing ring(33). A magnet bonding groove(31) is formed on the elevation ring. The fixing ring is closely joined to the side wall of the drainpipe with a fixing screw(34).