baber/WOPTO huggingface dataset:
Patent KR-20060043779-A (KR)
Title: 단열성을 향상시켜주면서 시멘트의 독성을 제거시켜주거나중화시켜주도록 작용하는 물리적인 방법을 이용하여건축물의 독성을 제거시켜주는 건축물의 구성 공법
Inventor: HAN SANG KWAN
IPC: E04B1/92
Filed: 2006-04-25
Abstract: 본 발명은 주택이나 빌딩 또는 학교 또는 사무실의 벽체 또는 지하철의 콘크리트 구조물 또는 건축물의 천장이나 바닥의 내부에 설치하여 벽체 또는 천장이나 바닥의 구성 부재인 콘크리트의 독성을 제거시켜 주도록 구비되는 파이프의 구조와 건축용 블록 또는 독성제거용 블록을 이용하여 건축물에 함유된 시멘트의 독성을 제거 시켜 주거나 완화시켜 주는 물리적인 방법을 이용하여 건축물을 신축하는 공법에 관한 발명이다. 또한 본 발명은 주택이나 빌딩 또는 학교 또는 사무실의 벽체에 사용되는  블록의 주요 구성 부재인 콘크리트의 독성을 제거시켜 주면서 동시에 단열성이 향상되도록 구비되는 블록을 이용하여 건축물을 시공하는 공법에 관한 발명이다. 또한 본 발명은 주택이나 빌딩 또는 학교 또는 사무실의 벽체 또는 천장이나 바닥에 물 또는 흙 혼합물을 투입할 수 있도록 구비되는 용기를 설치하거나 부착하여 실내의 공기가 악화되지 않도록 건축물의 주요 구성 부재인 시멘트 블록 또는 벽돌 또는 콘크리트 등으로 구성되어 있는 건축물에 함유되어 있는 시멘트의 독성을 제거하여 주는 건축물 공법에 관한 발명이다. 또한 바다에 투하되는 물고기집 또는 물고기의 이동이 용이하도록 구비되는 어도의 내부에 흙 혼합물을 투입하여 주는 방법을 이용하여 물고기집  또는 물고기의 이동이 용이하도록 구비되는 어도의 주요 구성부재인 콘크리트 몰탈 속에 함유되어 있는 시멘트의 독성을 제거하여 주도록 구비되는 물고기집의 구성방법에 관한 발명이다. 종래에 사용되고 있는 건축물의 독성 제거 방법으로는 특허 출원 제 10-2005-0059102호가 있으나 이 방법  또한 일부의 독성 많을 제거시켜 주도록 구성되어 있어서 건축물의 독성을 완전 하게 제거시켜 주지 못하는 결점이 있었다. 또한 특허등록제10-0557007호가 있는데 이 방법은 파이프에 통공구를 구성하여 준 후 그 내부에 제거가 용이하지 않은 물질들을 삽입하는 방법을 이용하여 시멘트의 독성을 제거시켜주는 방법을 이용하고 있기 때문에 효율적이지 못하다. 또한 건축물에서 발생되는 독성을 제거시키기 위해 공기 청정기를 이용하여 실내의 공기를 정화시키는 방법이 있는데 이 방법들은 수시로 공기 정화 판을 세척하여 주어야만 그 기능을 발휘하는 결점이 있으며 또한 영구히 사용하지 못하는 중대한 결점이 있다. 또 다른 방법으로는 광촉매 코팅을 건물 벽체에 도포하여주어 포름알데히드와 같은 유해물질들이 제거 되도록 하는 방법이 있는데 이 방법 또한 건물벽체들이 고기압과 저기압의 영향으로 공기 속에 섞여 있는 수분을 흡수하고 배출하는 작용 즉 결로 현상에 의해 발생시키는 포름알데히드와 같은 독성 유해물질들을 원천적으로 제거시켜 주지 못하는 중대한 결점들이 있었다. 본 발명은 이러한 문제점들을 해결하기 위한 발명이다. 
       
     시멘트 독성, 파이프, 포름알데히드, 결로현상, 인공어초. 물고기집
Patent KR-20060082829-A (KR)
Inventor: KANG SANG HYUN
IPC: A63H33/00
Filed: 2006-05-28
Abstract: 본 발명은 태양전지를 사용해서 사랑하는 연인에게 사랑의 메시지(message)를 전달하여 사랑을 고백하는 완구(Solar Powered Toy to propose)에 관한 것이다. 많은 연인들이 화창한 날 실외에서 연인에게 사랑을 고백하는 것에 착안하여 태양광 에너지를 이용하여 구동하는 사랑 고백 완구를 발명하게 되었다. 본 발명은 사랑의 메세지를 담고 있는 풍선부, 태양광을 이용해 전기를 생산하는 태양전지 모듈부, 생산된 전기를 이용하여 구동하는 동작부, 진동을 감지하여 멜로디를 발생하는 멜로디발생장치로 구성되어 있다. 이 완구를 이용해 사랑 고백을 한다면 태양에너지만을 이용하여 사랑하는 연인을 향해 전진하는 귀여운 완구와 완구에 달린 사랑의 메시지(message)를 통해 사랑하는 마음을 효과적으로 전달할 수 있을 것이라 기대할 수 있다. 
       
     태양에너지, 태양전지, 완구, 사랑, 사랑고백, 헬륨풍선, 멜로디풍선
Patent KR-20070115048-A (KR)
Title: Hanger fixer for deffering flowerpot and molding of square frame
Inventor: SONG HONG SIK
IPC: A01G9/02
Filed: 2006-05-30
Abstract: A fixing device of a hanger for holding a flowerpot or sculpture to a square frame or a rail is provided to facilitate the fixation and separation of the hanger regardless of the size of the hanger and replace only the hanger conveniently. A fixing device(100) of a hanger for holding a flowerpot or sculpture to a square frame comprises: a ring part(110) of which both end parts are bent downward, and which is fixed to a square frame(300) or a rail such as a veranda railing or a fence; a fixing part(120) which is formed at the exterior of one end part of the ring part, and to which a hanger for holding a flowerpot or a sculpture is fixed; and a hook part(130) which is connected inside the ring part from the other end of the ring part and is hooked to the lower side of one side of the square frame or rail so as to prevent the ring part from separating from the square frame or rail. The fixing part in the form of a plate is connected to the ring part by a connecting part(121). The end part of the hook part is bent upward. The ring part is divided into right and left ring parts, and the upper end parts of the two ring parts are formed to be coupled each other.
Patent KR-20070117928-A (KR)
Title: Method for data transferring through random access channel
Inventor: KWON YEONG HYEON
IPC: H04B7/26
Filed: 2006-06-09
Abstract: A method for transmitting data through an RACH(Random Access CHannel) is provided to maximize time/frequency diversity by transmitting and receiving a message by using a long sequence between a terminal and a base station, and reduce a performance attenuation due to a channel influence through a signature method. A terminal attempts accessing an RACH of a current frame among RACHs distributively disposed at each frame at the period of a certain number of frames. When the accessing is successful, the terminal transmits preamble data through the corresponding RACH. When the accessing fails, the terminal attempts accessing an RACH disposed at the next frame.
Patent KR-20060087475-A (KR)
Inventor: CHAI MOON YOUNG
IPC: H02J7/02
Filed: 2006-06-14
Abstract: 본 발명은 야간에 플레쉬로도 사용할 수 있음과 동시에, 모바일 폰에 장착된 배터리를 충전할 수 있고, 구조가 간단하며, 제조코스트를 절감할 수 있을 뿐만 아니라, 소형이어서 용이하게 휴대할 수 있는 플래쉬겸용 휴대충전장치를 제공하는 것을 목적으로 한다. 
       
     플래쉬겸용 휴대충전장치
Patent KR-20070120802-A (KR)
Title: Shelf used in a refrigerator
Inventor: PARK MIN WOO
IPC: F25D25/02
Filed: 2006-06-20
Abstract: A shelf for a refrigerator is provided to allow contents such as ice creams accommodated on the shelf to be inclined towards a chilled air inlet port and to ensure firm accommodation of contents on the shelf, which prevents the contents from falling outside the refrigerator. A refrigerator comprises a storage compartment, a door, a shelf(30). The door opens and closes the storage compartment. The shelf is disposed inside the storage compartment to accommodate contents to be stored, having a plurality of holes(32) on the floor to fit contents in, and a chilled air inlet port(34) to guide chilled air from the storage compartment to the shelf. The hole allows the content to be inclined towards the chilled air inlet port when the content is fitted therein.
Patent KR-20070121149-A (KR)
Title: The method for downloading sw in digital television and apparatus for controlling the same
Inventor: HONG YOUNG HO
IPC: H04N21/458
Filed: 2006-06-21
Abstract: A method and an apparatus for downloading software in a digital television are provided to store more software related to a digital television system and select the software according to tastes of a user. A software downloading method of a digital television comprises the following steps of: receiving software related to the digital television system through a tuner; checking a version of the received software; storing the received software in a mass storage memory if software of the checked version does not exist in the mass storage memory; reading specific software, of software stored in the mass storage memory, to a driving software storage(S352); and driving the digital television system according to the read specific software(S355).
Patent KR-20080000043-A (KR)
Title: Access floor of clean room
Inventor: KO MYUNG SU
IPC: H01L21/02
Filed: 2006-06-26
Abstract: An access floor of a clean room is provided to prevent troublesomeness of replacing an access floor and solve an align problem by rotating a driving axis by a tool like a driver in the outside and by adjusting the aperture ratio of a plate. A pair of plates(110) are coupled to one position, having regular openings(111) and separated from each other by a predetermined interval. A support part(120) supports a gap between the pair of plates in a row or column direction of the opening formed in the pair of plates. A driving axis(130) penetrates the plate in the upper portion of the pair of plates to be extended to the inside, capable of rotating. A following axis(140) is connected to the end of the driving axis between the pair of plates, capable of rotating. Rotation shutters(150) are attached at regular intervals to the following axis, corresponding to the opening of the plate. The rotation shutter adjusts the aperture ratio of the opening in the plate by rotation of the following axis. The rotation shutter can have a smaller width than the breadth of the opening.
Patent KR-20080000377-A (KR)
Title: Sterilization washing method and sterilization washing machine
Inventor: OH SE JIN
IPC: A61L2/12
Filed: 2006-06-27
Abstract: A method and an apparatus for sterilizing and washing laundry are provided to wash various pollution materials effectively, to sterilize harmful germs that cause various diseases completely and to maintain an antibacterial function for a long time. An apparatus for sterilizing and washing laundry includes a laundry transfer device(110), plural spray nozzle devices, plural ozone lamp devices, a vacuum suction device and a fan. The spray nozzle devices are arranged on the installation path of the laundry transfer device and spray compressed air to the laundry to remove foreign materials. The ozone lamp devices are arranged on the installation path of the laundry transfer device to emit ozone and ultraviolet rays to the laundry. The vacuum suction device installed on the installation path of the laundry transfer device vacuum sucks the foreign materials.
Patent KR-20080001726-A (KR)
Title: Method of manufacturing plasma display panel and plasma display apparatus thereof
Inventor: HAN CHANG MIN
IPC: H01J11/44
Filed: 2006-06-29
Abstract: A plasma display device and a manufacturing method thereof are provided to simplify a panel manufacturing process by co-firing an electrode, a black matrix, and a dielectric material on a substrate at the same time. A paste for forming an electrode is applied on a substrate(500,510). A dielectric material is laminated on the substrate(520). The paste for forming the electrode and the dielectric material are co-fired on the substrate at the same time(530). A thickness of the dielectric material laminated on the substrate is between 65 and 82 um from the substrate. The paste for forming the electrode contains an organic component and an inorganic component. The inorganic component contains a glass frit and a conductive material. The glass frit accommodates 1.5 to 4w% of the paste for forming the electrode.
Patent KR-20080002348-A (KR)
Title: System and method for recommending music
Inventor: KIM DAE HONG
IPC: G06Q50/10
Filed: 2006-06-30
Abstract: A system and a method for recommending music are provided to classify songs on the basis of representative melodies to improve the reliability of a song classification result and recommend songs suitable for the taste of a user based on the classification result and user preference. A system(200) for recommending music includes a sound source classification unit, a sound source storage unit(230), a preference analysis unit(250), a user information storage unit(240), and a music recommendation unit(260). The sound source classification unit determines a region including a phrase having the highest waveform concentration and a predetermined number of phrases following the phrase, which is detected from sound source data, as a representative melody, and generates sound source data information including the genre to which the sound source data belongs based on the tempo of the sound source data and the representative melody. The sound source storage unit stores the sound source data. The preference analysis unit presents test songs to a user and generates music preference information of the user based on the response of the user. The user information storage unit stores user information including the age and sex of the user and the music preference information. The music recommendation unit generates a recommended music list including sound sources corresponding to the user information based on the sound source data information and provides the recommended music list to a user terminal.
Patent KR-20080003137-A (KR)
Title: Refrigerator
Inventor: KIM SU CHEONG
IPC: F25D23/00
Filed: 2006-07-01
Abstract: A refrigerator is provided to prevent release of supercooled state of the liquid by confining movement of the supercooled liquid and revert to the supercooling state for liquid if the supercooling state is released. A refrigerator(500) comprises a storage chamber(510), a door(520), a water tank(560), a sensor(580), a heater(560a), an energy generator(570), a case, and a confining member. The storage chamber supplies chilled air. The door opens and closes the storage chamber. The water tank is disposed on the door side, accommodating supercooled liquid. The sensor senses phase change of the supercooled liquid. The heater, interlocked with the sensor, supplies heat to the tank. Thus the release of supercooling state can be sensed by the sensor, and recovered by the heater. The energy generator, such as an electrode, provides energy to the supercooled liquid to keep its state supercooled. The case, which is mounted on the door and receives the tank, comprises at least one of the heater, sensor, or the electrode which provides energy to the supercooled liquid. The confining member provided on the tank, confines movement of the supercooled liquid, so as to prevent release of supercooling state due to external impact or opening and closing of the door.
Patent KR-20070089565-A (KR)
Title: Fixing method of the cable-hanger
Inventor: ASANO KIMIO
IPC: H02G7/06
Filed: 2006-07-06
Abstract: A fixing method of a cable-hanger is provided to rapidly and easily fix the cable-hanger to a messenger wire even at a high place without a jig. In a fixing method of a cable-hanger(11) to a messenger wire(10), the cable-hanger(11) with a spiral wire structure is attached to the messenger wire(10) such that a cable crosses the cable-hanger(11). The cable-hanger(11) has the spiral wire structure with high tension in the form of a one-directional structure or an alternating spiral structure. A wire with high tensile strength made of thermoplastic is used as the cable-hanger(11). The cable-hanger(11) is suspended by the messenger wire(10) by penetrating the messenger wire(10) and the cable inside the spiral structure made of a high tensile strength wire. Fixing parts(13) for fixing the messenger wire(10) to the cable-hanger(11) are both ends of the cable-hanger(11). An armor rod(14) is used to fix the cable-hanger(11) to the messenger wire(10).
Patent KR-20080004940-A (KR)
Title: Integrated infomation operated service system and service support method providing contents infomation into idle screen of portable device
Inventor: LEE CHANG SEOK
IPC: H04W88/02
Filed: 2006-07-07
Abstract: An integrated information operating service system for providing contents information to the idle screen of a terminal and a service providing method thereof are provided to gather information provided from various contents servers and transmit the information to the terminal so that the terminal can check various information as necessary. An integrated information operating service system for providing contents information to the idle screen of a terminal(100) comprises a terminal, at least one contents server, at least one information gathering gateway(500), an idle mode server(400), a mobile communication system(200), and an SIP(Session Initiation Protocol) server(300). The terminal includes an idle screen where an image is displayed. At least contents server includes an E-mail which the terminal user has assigned. At least information gathering gateway gathers the E-mail from the contents server. The idle mode server receives the E-mail gathered from the information gathering gateway to transmit the E-mail to the idle screen of the terminal. The mobile communication system forms a communication channel between the terminal and the idle mode server. The SIP server forms an SIP-based communication channel between the idle mode server and the information gathering gateway and between the idle mode server and the terminal.
Patent KR-20070040290-A (KR)
Inventor: LEE YANG JIC
IPC: H04M1/23
Filed: 2006-07-12
Abstract: 본 발명은 제1 하우징과, 상기 제1 하우징 상에 제1 방향 및 상기 제1 방향에 수직하는 제2 방향을 따라 슬라이딩 이동 가능하게 결합된 제2 하우징을 포함하는 휴대용 단말기에 있어서, 상기 제1 하우징 상에 제공되고, 상기 제2 하우징이 상기 제1 방향으로 슬라이딩 이동함에 따라 개폐되는 제1 키패드; 및 상기 제1 하우징 상에 제공되고, 상기 제2 하우징이 상기 제2 방향으로 슬라이딩 이동함에 따라 개폐되는 제2 키패드를 포함하는 휴대용 단말기의 키패드를 개시한다. 상기와 같이 구성된 휴대용 단말기는 제2 하우징이 제1 하우징 상에서 슬라이딩 이동하는 방향에 따라 서로 다른 배열의 키패드가 개폐되어 단말기의 입력 장치를 다양화하는데 용이하고, 사용이 편리한 장점이 있다.  
       
     단말기, 슬라이딩, 양방향, 키패드
Patent KR-20080006997-A (KR)
Title: Novel phenylpropionic acid derivatives as peroxisome proliferator-activated alpha/gamma receptor agonists, method of the same, and pharmaceutical composition comprising the same
Inventor: MOON HO SANG
IPC: C07D251/40
Filed: 2006-07-14
Abstract: A phenylpropionic acid derivative is provided to lower the blood sugar and lipid in blood, and improve insulin resistance by simultaneously activating gamma and alpha peroxisome proliferator-activated receptors. A phenylpropionic acid derivative is represented by the formula(1) and is prepared by the method comprising the steps of: (a) reacting a compound represented by the formula(2), (3), or (4) with a compound represented by the formula(5); (b) reacting a cyanuric chloride represented by the formula(6); (c) reacting Y; (d) reacting Z; and (e) hydrolyzing. In the formulae, R is -OCH2CH3 or -CH2CH3; X is -NCH3, -NH, -O- or methylene; each Y and X is independently lower alkyl, lower alkoxy, lower cycloalkylamine, aniline, azetine, pyrrolidine, piperidine, piperazine, morpholine, thiomorpholine, phenyl, or phenoxy, provided that each defined substituent of the Y and Z may optionally have at least one substituent selected from the group consisting of C1-6 alkyl, C1-6 alkoxy, hydroxy, amino, nitro, trifluoromethyl, phenyl, benzyl, benzoyl, furan, thiophene, phenoxy, piperidine; n is an integer from 1 to 5; and W is methyl or ethyl. A therapeutic agent for diabetes or X-syndrome comprises the compound of the formula(1) or a pharmaceutically acceptable salt thereof as an effective ingredient.
Patent KR-20080008572-A (KR)
Title: Method for providing safety of web service in ubiquitous circumstance
Inventor: HWANG HYUN SIK
IPC: H04L9/00
Filed: 2006-07-20
Abstract: A method for providing a safe web service in a ubiquitous environment is provided to improve the flexibility with other systems based on SAMIL by defining a DAT(Delegation Authorization) based on SAMIL 2.0. A method for providing a safe web service in a ubiquitous environment includes the steps of: encrypting the information with respect to a subject by using a public key of an AA(Authentication Agent) to prevent the privacy of the subject from being exposed; and encrypting input data(Encrypted Attribute) into a public key of a provider of the corresponding web service. The web service provider inspects only the validity of the DAT received from the agent so as to reduce the time complexity for the verification.
Patent KR-20080010675-A (KR)
Title: Connecting device of stand
Inventor: HONG KWANG PYO
IPC: G06F1/16
Filed: 2006-07-27
Abstract: A stand interconnection equipment is provided to pack and convey a stand and a display part together in one body for reducing distribution cost by inserting the stand into the display part to be adhered closely. A display part(20) comprises an inserting groove, and an installation hole penetrating a backside and being interconnected to an insert groove. An insert bar(31) is inserted into the insert groove. A landing plate is placed on the ground, and installed at the bottom place of the insert bar. A pressing part(40) presses the insert bar, and installed within the installation hole.
Patent KR-20080011831-A (KR)
Title: Apparatus and method for controlling equalizer equiped with audio reproducing apparatus
Inventor: JEON JAE JIN
IPC: G11B20/10
Filed: 2006-07-31
Abstract: An apparatus and a method for automatically controlling an equalizer of an audio player are provided to output an audio file whose frequency bands are adjusted as an audible audio signal by analyzing a play list of the audio file and ID tag information and adjusting the frequency bands according to user preference information on the equalizer. A method for automatically controlling an equalizer of an audio player includes the steps of analyzing equalizer set pattern of a specific frequency band and generating preference information, and adjusting the tone of the audio data according to the preference equalizer information stored in a play list or ID tag information. To change the preference equalizer information, the changed preference equalizer information is corrected to new preference equalizer information and the preference of the specific frequency band is analyzed.
Patent KR-20080013492-A (KR)
Title: Brake system sensing force of side wind for vehicle
Inventor: YOON TAE SU
IPC: B60T17/18
Filed: 2006-08-09
Abstract: A cross-wind sensing brake system for a vehicle is provided to reduce a vehicle speed by operating a brake via a solenoid valve when force of cross-wind exceeds a predetermined level. A cross-wind sensing brake system for a vehicle comprises an air compressor(40), an air tank(50), a brake body(60), a connection pipe(61) connecting the air tank and brake body to each other, a cross-wind sensing unit(10) sensing force of cross-wind and sending a cross-wind force sensing signal, a controller(20) receiving the cross-wind sensing signal from the cross-wind force sensing unit and sending a valve operation signal according to the cross-wind force sensing signal, and a solenoid valve(30) receiving the valve operation signal and controlling air flow passing through the connection pipe. The cross-wind sensing brake system is operated by operation of the solenoid valve.
Patent KR-20080016116-A (KR)
Title: Method for evaluating load carrying capacity of bridge
Inventor: LEE CHANG GUEN
IPC: G06Q50/08
Filed: 2006-08-17
Abstract: A method for evaluating load carrying capacity of a bridge is provided to reduce time and costs for installing a measuring instrument by installing an accelerometer to calculate the load carrying capacity. An accelerometer is installed on a bridge, and an acceleration signal is measured from the accelerometer. Mode coefficient of the bridge is calculated through test mode interpretation from the measured acceleration signal. A finite element analysis model of the bridge is improved by using the mode coefficient. Deflection correction coefficient is obtained from the finite element analysis model. An acceleration signal is extracted when passing vehicles. Displacement is calculated by performing the double integral the extracted acceleration signal. Shock correction coefficient is obtained by using the displacement. The load carrying capacity is calculated by using the deflection correction coefficient and the shock correction coefficient.
Patent KR-20060103253-A (KR)
Inventor: HWANG YOUNG SANG
IPC: C08L33/08
Filed: 2006-08-17
Abstract: 본 발명은 긁힘방지 및 자기복원성을 갖는 수지조성물에 관한 것으로서, 아크릴수지, 지방족 폴리에스터 수지, 실리콘 변성 폴리아크릴레이트, 폴리디메틸 실록산, 알콕시 실란 이소시아네이트경화제, 경화촉진제, 희석제, 분산제, 소포제등으로 이루어져 있어 열 건조 경화과정을 거쳐 아크릴수지, 지방족 폴리에스터수지, 실리콘변성 폴리아크릴레이트 수지, 폴리디메틸실록산, 알콕시실란 등이 이소시아네이트경화제와 화학반응에 의해 분자내 치밀한 우레탄 분자구조 및 사다리구조를 갖게 함으로서, 도막의 긁힘방지 성능 개선과 스크래치 등이 시간경과에 따라 자기복원 되는 성능을 현저히 개선시킨 수지조성물을 제공코자 한 것이다. 
     즉, 본 발명은 아크릴수지 10~30중량%, 지방족 폴리에스터 수지 10~30중량%, 실리콘 변성 폴리아크릴레이트 수지 1~10중량%, 폴리디메틸 실록산 0.5~5중량%, 알콕시 실란화합물 0.5~3중량%, 지방족 이소시아네이트경화제 18~38중량%, 희석용제 20~60중량%로 이루어진 것으로서, 전기전자제품, 자동차, 가구, 악기 등의  표면코팅 도막의 스크래치에 의한 긁힘방지 및 시간경과에 따라 긁힌 흠집이 스스로 복원 치료되는 우수한 자기복원 성능을 발현시킬 수 있어 제품 품질 향상을 기대할 수 있는 것이다. 
     긁힘방지, 자기복원성, 수지조성물, 아크릴수지, 실리콘 변성 폴리아크릴레 이트
Patent KR-20080017819-A (KR)
Title: Oil feeding device of variable valve lift system
Inventor: CHOI BYONG YOUNG
IPC: F01L13/00
Filed: 2006-08-22
Abstract: An oil feeding device of a variable valve lift system is provided to rotate a flow pipe on an oil flow channel in accordance with a rotation signal of a crank shaft and open an oil feeding port to the hydraulic lift adjuster for each cylinder. An oil feeding device of a variable valve lift system includes a flow pipe(21), an oil feeding block(23), a driving motor(25), and a crank shaft rotation sensor(27). The flow pipe is arranged on an oil flow channel(11 or 13) on a cylinder head(20) such that the flow pipe is rotatable. The flow pipe has slots(H1,H2,H3) having sizes decreasing in correspondence to oil feeding ports of each cylinder. The flow pipe has one end with an oil hole(29). The oil feeding block feeds oil into the flow pipe. The driving motor is connected to one end of the flow pipe, and transmits power to the flow pipe through a gear unit in accordance with the control signal output from a controller(30). The crank shaft sensor senses rotation of the crank shaft of an engine, and outputs a signal to the controller.