baber/WOPTO huggingface dataset:
Patent KR-101397097-B1 (KR)
Title: Substrate manufacturing method for led
Inventor: PARK SUHN KYU
IPC: H01L33/02
Filed: 2013-04-09
Granted: 2014-05-19
Abstract: A method for manufacturing a substrate for an LED according to the present invention may include a step of forming a SiC layer which is CVD-deposited on a base, a step of performing a surface treatment process on the CVD-deposited SiC layer, a step of forming a crystalline SiC layer on the CVD-deposited SiC layer which is surface-treated, a step of forming a GaN material or an AlN material, and a step of completing wafer manufacture by removing layers which are formed in the lower part of the GaN material and the AlN material through a backside polishing process.
Patent KR-101418342-B1 (KR)
Title: Restoration apparatus for a sedimentary structure of an undisturbed layer of recent intertidal sediments
Inventor: CHOI KYUNG SIK
IPC: G01N1/02
Filed: 2013-04-17
Granted: 2014-07-10
Abstract: The present invention relates to an apparatus for restoring a sediment structure of an undisturbed sedimentary layer of a Phanerozoic intertidal zone and, more specifically, to an apparatus for restoring a sediment structure of an undisturbed sedimentary layer of a Phanerozoic intertidal zone, which includes: a can core for taking samples of a sedimentary layer; a hollow first frame prepared on the top of the can core, in which the taken sample is exposed, and having the same appearance of the can core; a partition prepared on the first frame for dividing the samples taken from the can core in accordance with a particle size distribution of the samples; and a second frame prepared on the top of the first frame while having the same appearance of the first frame and having a fabric with an imitated shape of the sedimentary structure of the samples.
Patent KR-101499851-B1 (KR)
Title: 번인 보드의 테스트 시스템
IPC: G01R31/26
Filed: 2013-05-02
Granted: 2015-03-23
Abstract: 본 발명의 번인 테스트 장치는 기능 테스트부와 DC 테스트부를 포함한다.  기능 테스트부는, 번인 보드의 전체 소켓들에 미리 양품으로 판정된 DUT들이 각각 탑재된 상태에서, 테스트 패턴 신호를 생성하여 번인 보드에 인가하고, DUT들로부터 소켓들을 통해 출력되는 테스트 결과 신호들을 수신하며, 수신된 테스트 결과 신호들을 기준 테스트 결과 데이터에 대비하여, 번인 보드 상에서 신호의 전송 경로를 구성하는 소켓, 신호 라인, 회로 소자 또는 커넥터의 양호 또는 불량 가능성을 결정할 수 있다.  DC 테스트부는 적어도 하나의 소켓이 속하는 신호의 전송 경로에 관하여 불량 가능성이 검출되면, 소켓에 대해, 또는 번인 보드 전체의 소켓들에 대해, DUT 미탑재 상태 또는 단락 더미 DUT 탑재 상태에서, 각 소켓의 단자 단위로 각각 DC 테스트를 수행하고, DC 테스트 결과로부터 불량의 원인을 식별하는 DC 테스트부를 포함할 수 있다.
Patent KR-101378831-B1 (KR)
Title: Gear box assembly for electric tool and loose-proof structure of gear box cap and gear box housing
Inventor: HUR DEOG JAE
IPC: B25B23/00
Filed: 2013-05-06
Granted: 2014-04-02
Abstract: Disclosed is a gear box assembly for an electric tool. The gear box assembly includes: a gear box housing having a latch groove in an inner circumference thereof; a spindle installed within the gear box housing to be able to rotate by interposing a bushing therebetween; a gear box cap having a through-hole at the center thereof into which a rotating shaft of a driving motor is inserted, and a latch groove hole in an inner circumference thereof; a socket connecting and coupling the gear box housing and the gear box cap; a pinion installed within the gear box housing , and connected to the rotating shaft of the operation motor; a ring gear in which a gear unit is formed on an inner circumference thereof, a first latch protrusion is formed on an upper portion thereof and coupled to a latch groove of the gear box cap, and a second latch groove is formed on a lower portion thereof and coupled to the latch groove of the gear box housing; and a planetary gear engaged with the pinion, and rotating internally in the state of being in contact with the gear unit of the ring gear.
Patent KR-101431557-B1 (KR)
Inventor: HWANG YONG TAEK
IPC: F02M37/08
Filed: 2013-05-07
Granted: 2014-08-19
Abstract: The present invention relates to an upper body assembly structure of a motor type fuel pump for a vehicle and, more specifically, to an upper body of a motor type fuel pump to remove welding work of binding between component parts that make up a brush assembly which is installed inside the upper body, and to connect the component parts by compression. And the upper body assembly structure of the motor type fuel pump for a vehicle can be easily mounted with the brush assembly and an elastic body respectively in order to comprise a structure capable of completing assembly and fastening by a simple assembly process, thereby resolving a defective rate and improving workability induced by a conventional welding process.
Patent KR-101398681-B1 (KR)
Title: Packaging device for corps digger
Inventor: YUN TAE WOOK
IPC: A01D33/00
Filed: 2013-05-20
Granted: 2014-06-03
Abstract: The present invention relates to a packaging device for a crytophyte crop harvester capable of increasing the efficiency of packaging by continuously loading and packaging crops harvested by a cryptophyte crop harvester onto small sacks. According to the present invention, the packaging device of a cryptophyte crop harvester includes: a sack installation plate having a plurality of sacks installed toward the circumferential direction to accommodate crops which are fallen from a transfer instrument after being transferred by the transfer instrument; and a rotation shaft installed on the center of the sack installation plate, with the ability to rotate on the frame of the cryptophyte crop harvester. Through the rotation of the rotation shaft, the sack installation plate is rotated and, thereby evenly distributing and inserting the harvested crops into the sacks.
Patent KR-102128495-B1 (KR)
IPC: C30B25/02
Filed: 2013-05-21
Granted: 2020-06-30
Abstract: 에피택셜 웨이퍼에 관한 것이다.  
에피택셜 웨이퍼는 기판, 그리고 상기 기판 상에 형성된 에피택셜 구조체를 포함하되, 상기 에피택셜 구조체의 표면 결함 밀도가 1개/cm 2 이하이고, 상기 에피택셜 구조체의 기저면 전위 결함 밀도/에치피트 밀도(Etch Pit Density)가 0.01이하이다.
Patent KR-101460313-B1 (KR)
Inventor: HONG HYUN KI
IPC: G06T7/60
Filed: 2013-05-24
Granted: 2014-11-14
Abstract: Disclosed is an apparatus to estimate the location of a robot using visual characteristics and geometric information. A depth image including three-dimensional depth data and an RGB color image including color information are inputted to an image input unit. A feature section extracting unit extracts three-dimensional geometric information from the inputted depth image and extracts two-dimensional color information from the color image. A calculating unit calculates an appearance distance from the RGB color image, calculates a geometric distance from the depth image, and calculates a plane normal vector. A refining unit refines a feature section which exists on a plane. A word matching unit matches the feature section and a word by using a visual word database unit stored in advance. A location estimating unit estimates the current location of a robot based on word matching information. The present invention is able to generate an index word in a topological map when estimating the location of a robot by using three-dimensional depth data. Thereby the present invention is able to accurately grasp the location of a robot by using visual characteristics and geometric information.
Patent KR-101371184-B1 (KR)
IPC: H04W4/16
Filed: 2013-05-24
Granted: 2014-03-07
Abstract: 본 발명은 근거리 무선 통신을 이용하여 이동통신장치를 직접 동작시킬 수 없는 상태에 있는 착신자의 상황 정보를 간편하게 발신자에게 전송하기 위한 장치 및 방법에 관한 것이다. 
본 발명에서는, 호 또는 단문메시지가 착신되었음을 통보하기 위한 착신통보메시지를 생성하여 휴대장치로 전송하고, 상기 휴대장치로부터 착신응답지시메시지를 수신하면 상기 착신응답지시메시지에 의해 지시되는 특정의 상황정보데이터에 따라 상황정보메시지를 생성하여 상기 호 또는 단문메시지를 발신한 발신장치로 전송하는 이동통신장치와; 상기 착신통보메시지를 수신하면 디스플레이되는 응답지시인터페이스를 통해 특정의 상황정보데이터를 선택하는 신호를 입력받고, 상기 선택된 특정의 상황정보데이터를 지시하기 위한 정보를 포함하는 상기 착신응답지시메시지를 생성하여 상기 이동통신장치로 전송하는 휴대장치를 포함하는 착신자의 상황정보를 전송하기 위한 장치가 개시된다.
Patent KR-101466061-B1 (KR)
Inventor: LEE YOUNG CHEOL
IPC: C30B15/02
Filed: 2013-06-14
Granted: 2014-11-28
Abstract: The purpose of the present invention is to provide a separable seed input device that prevents the pollution of seeds by inputting the seeds into vacuum when alumina is completely melted in a growth furnace. To achieve the purpose, the separable seed input device for inputting seeds into a growth furnace according to the present invention comprises: a main body having an inner space formed therein; a crucible placed inside the main body to melt alumina using an external power; and a cover placed at the upper end of the main body to open and close the inner space inside the main body. The separable seed input device comprises: an introduction tube formed in the middle of the cover to intercommunicate with the inside of the main body; a seed fixing part having an end fixed to a structure extending toward the main body and having a seed mounted on the other end to be transferred vertically; a sealing part enveloping the exterior of the seed fixing part and having an end combined with the introduction tube; and a gate for opening and closing the introduction tube, wherein the gate closes the introduction tube before alumina is completely melted and opens the introduction tube when the sealing part is combined with the introduction tube and the inside of the sealing part is sealed.
Patent KR-101447550-B1 (KR)
Inventor: SEO YONG WON
IPC: A61G5/08
Filed: 2013-06-17
Granted: 2014-10-08
Abstract: The present invention relates to a foldable electric wheelchair that can adjust the height of a seat and improve transportation storage, and loading properties. The foldable electric wheelchair includes at least two pair of wheels symmetrically provided at both sides; a driving frame for driving the wheels; a seat frame positioned on an upper portion of the driving frame to support a human body of an occupant; a support shaft having a first stage hinged to the seat frame and a second stage hinged to the driving frame; and a support rotating unit for rotating the support shaft so that the seat frame is selectively positioned at a first position in which the bottom surface of the seat frame comes into contact with the top surface of the driving frame, and a second position in which the seat frame is positioned at a given height from the top surface of the driving frame.
Patent KR-101415739-B1 (KR)
Title: Apparatus for generating tactile sensation by using magnetic field
Inventor: CHO JAI HI
IPC: G06F3/01
Filed: 2013-06-21
Granted: 2014-07-04
Abstract: One aspect of the present invention relates to a device for generating touch by using a magnetic field, comprising a first magnet and a second magnet which are symmetrical to each other where a target for generating the touch is interposed, and a first electromagnet arranged between the target and the first magnet. The present invention provides the device which controls at least one among the direction and the intensity of the magnetic field generated from the first electromagnet and control the intensity of the magnetic field between the first magnet and the second magnet, thereby controlling the intensity of the force of the target by using the first magnet and the second magnet. The magnet which generates the magnetic field is used for an actuator which generates the touch, thereby simplifying, lightening, and miniaturizing the device for generating the touch.
Patent KR-101528667-B1 (KR)
Title: 전자파 흡수체
IPC: H01Q17/00
Filed: 2013-07-09
Granted: 2015-06-15
Abstract: 전자파 흡수체는 시멘트 및 탄소나노튜브를 포함하고, 1 ~ 110GHz의 주파수 대역에서 복소 비유전율의 절대값이 2.0 ~ 10.0의 범위이고, 1 ~ 110GHz의 주파수 대역에서 손실 계수의 최소값이 0.35 이상인 것을 특징으로 한다.
Patent KR-101936441-B1 (KR)
Title: 자동차용 도어글래스 레귤레이터 장치
IPC: E05F15/665
Filed: 2013-07-26
Granted: 2019-04-03
Abstract: 본 발명은 자동차용 도어글래스 레귤레이터 장치에 관한 것으로서, 더욱 상세하게는 도어글래스의 틸팅을 방지할 수 있는 자동차용 도어글래스 레귤레이터 장치에 관한 것이다. 
즉, 본 발명은 도어글래스의 승하강시 레귤레이터 케이블의 장력을 이용하여 그립부의 레일 그립력을 항상 일정하게 유지시킬 수 있도록 함으로써, 그립부의 마모가 발생하더라도 도어글래스의 틸팅 현상을 방지할 수 있도록 한 자동차용 도어글래스 레귤레이터 장치를 제공하고자 한 것이다.
Patent KR-101483010-B1 (KR)
Inventor: JU JAE CHEOL
IPC: H01L33/48
Filed: 2013-07-29
Granted: 2015-01-19
Abstract: The present invention relates to an LED package. The purpose of the present invention is to provide the LED package which forms positive and negative terminals by cutting a metal substrate and improve heat radiation efficiency of an LED chip by mounting an LED chip on a chip mounting unit of the metal substrate and minimizes the loss of light and improves light emitting efficiency at the same time by installing a reflection member in the chip mounting unit and reflecting the light generated maximally in the LED chip. The LED package inserts and fixates a molding unit or a lens unit in a hole by forming the hole on the metal substrate and inserts and fixates the molding unit or the lens unit in a groove by forming the groove on the lower side of the metal substrate at the same time. Therefore, the LED package increases bonding force between the molding unit or the lens unit with the metal substrate and stably makes the bonding force between the molding unit or the lens unit with the metal substrate at the same time. The technical composition of the present invention comprises; a metal substrate which is cut and formed of positive and negative terminals to have a mutually asymmetrical structure by a cutting unit and forms a chip mounting unit on the center of the upper side and forms a cavity on the chip mounting unit to be stepped; one or more LED chips which are mounted on the cavity of the chip mounting unit of the metal substrate and is electrically connected to the positive and negative terminals by being bonded with the positive and negative terminals through a wire; and a molding unit which is formed on the metal substrate and seals the LED chips and forms a lens unit on the upper side.
Patent KR-101428404-B1 (KR)
IPC: G21D3/04
Filed: 2013-07-30
Granted: 2014-08-13
Abstract: 원자로 보호 시스템은 감마선 센서와, 대응되는 중성자 센서를 구비하는 기구 조립체를 포함한다.  감마선 센서가 중성자 센서의 응답과 관한 시간 지연을 보정하고 중성자 센서가 핵반응 자체에서 발생되는 감마선에 추가하여 핵반응 폐기물에서 발생되는 감마선에 의한 감마선 민감도를 보정하도록, 감마선 센서와 중성자 센서 양자는 코어 내의 전력 분포를 직접 모니터링하는데 사용한다.  코어 내의 전력 레벨의 직접 측정은 코어 밖의 전력 측정에 현재 관련된 불확실성을 감소하게 하고, 원자로 전력 레벨의 직접 측정은 한 센서의 다른 센서에 기초한 조정을 위한 복잡한 계산의 필요를 없앤다.  코어를 걸쳐 균등하게 배치된 센서로부터 신호를 받는 각각 4개의 채널이 있는 4개 채널의 원자로 보호 시스템은, 비록 어떠한 센서들이나 보호 채널이 작동하지 않더라도, 코어의 효과적인 모니터링이 이루어지도록 보장한다.  기구 조립체는 기존의 원자로 보호 시스템을 개선하는데 사용될 수 있다.
Patent KR-102032758-B1 (KR)
IPC: B82B1/00
Filed: 2013-08-05
Granted: 2019-10-17
Abstract: 본 발명의 일 실시형태는 희토류 금속염이 용해된 용액을 마련하는 단계; 상기 용액에 산소 기체를 통과시키는 단계; 산소 기체를 통과시킨 상기 용액에 염기를 첨가하여 침전물을 형성하는 단계; 및 상기 침전물을 회수하여 희토류 산화물 입자를 얻는 단계; 를 포함하는 희토류 산화물의 제조방법을 제공할 수 있다.
Patent KR-101454893-B1 (KR)
Inventor: KIM HWANG KYUNG
IPC: B29C48/32
Filed: 2013-08-19
Granted: 2014-11-03
Abstract: The present invention is achieved by providing a fiber-optic cable duct that is essentially constructed in an engineering work for electrical line facilities and communication line facilities, and a device for manufacturing the fiber-optic cable duct. The device includes: an extruder in which a raw material in the form of powder fed through a hopper is heated to a high temperature at a screw case and is then forcibly transferred as a molten material to head dice; first dice and second dice continuously installed from both sides of the head dice and receiving the raw material as the molten material divided into two parts through the head dice from the screw case, to form straight inner and outer tubes, respectively, through extrusion; a first cooling water tank continuously installed from the front end of the first dice to standardize the inner tube through a first sizing member and cure the inner tube in a water-cooled manner; a first drawing member for drawing the inner tube cured through the first cooling water tank; a plurality of guide rolls which change a transfer direction of the cured inner tube drawn to the first drawing member, to guide the inner tube such that the inner tube is inserted into the rear end of the second dice and is transferred to the front end thereof; a second cooling water tank continuously installed from the front end of the second dice to shape the outer tube into a spiral tube through a second sizing member in a suction-holding manner, and simultaneously, to integrally form the outer tube with the outer circumference of the inner tube transferred into the second dice, thereby configuring a duct, and to cure the duct in a water-cooled manner; a second drawing member for drawing the duct cured through the second cooling water tank; and a winder continuously installed from the second drawing member to wind the duct. Accordingly, a single duct for accommodating a fiber-optic cable is manufactured through a series of mechanical and continuous processes.
Patent KR-102087177-B1 (KR)
IPC: B63B21/50
Filed: 2013-08-20
Granted: 2020-03-10
Abstract: 본 발명은 부유식 발전 플랜트 계류 장치에 관한 것으로서, 더욱 구체적으로는 안벽과 함께 트러스구조물이 계류라인에 의해 BMPP(Barge Mounted Power)를 포함하는 부유식 발전 플랜트의 3면을 고정시킴으로써 적은 비용으로 부유식 발전 플랜트의 거동을 안전하게 제한할 수 있고, 부유식 발전 플랜트에 대해서 계류라인으로 3방향 고정이 가능함으로써 부유식 발전 플랜트의 안정성과 가동률을 높일 수 있으며, 조수간만의 차에도 불구하고 부유식 발전 플랜트의 고정력을 일정하게 유지할 수 있도록 하고, 트러스구조물의 운반이 가능하도록 함으로써 부유식 발전 플랜트에 적재하여 언제 어디서라도 편리하게 사용할 수 있는 부유식 발전 플랜트 계류 장치에 관한 것이다. 
본 발명에 따른 부유식 발전 플랜트 계류 장치는 안벽에 계류된 부유식 발전 플랜트의 양측으로 배치되도록 상기 안벽에 각각 고정되는 트러스구조물; 및 상기 트러스구조물과 상기 안벽에 상기 부유식 발전 플랜트를 각각 연결시키는 계류라인을 포함한다.
Patent KR-101421252-B1 (KR)
Inventor: HA JEOM YONG
IPC: B03C1/00
Filed: 2013-08-20
Granted: 2014-07-18
Abstract: The present invention relates to an apparatus and a method for purifying soil contaminated by heavy metal. By granulating soil contaminated by heavy metal in multiple steps and separately collecting heavy metal wastes and soil by washing the heavy metal wastes and contaminants contained in the granulated soil while separating by a magnetic force of a magnet, the generation of heavy metal wastes can be minimized and economic feasibility can be improved by reducing delivery costs and management costs of the heavy metal wastes.
Patent KR-101365654-B1 (KR)
Title: Insulator for very high voltage distribution line
Inventor: ANN BYUNG ROK
IPC: H01B17/16
Filed: 2013-08-22
Granted: 2014-02-24
Abstract: The present invention relates to a connection insulator for an extra-high voltage overhead electric power distribution line which enables relatively easy and stable installation of an overhead electric power line to be fixed to the upper part of an insulator main body as well as easy replacement even if the insulator main body is damaged. In the present invention, the connection insulator for an extra-high voltage overhead electric power distribution line to install an insulator body, where an overhead electric power line is fixed, to the arm of a utility pole includes: an insulator main body which is made of ceramic material and is installed by placing a fixing plate onto the arm of a utility pole; a first buffer member which is placed at the upper part of the insulator main body and is engaged by a fixing bolt; second buffer members which are installed at both ends of the first buffer member while facing each other; and an electric power line fixing member which is installed in the upper part of the two second buffer member and is to grip the overhead electric power line. In the central part of the insulator main body, a metal reinforcing piece for the engagement of the fixing bolt is buried. The first buffer member includes a vibration proof pad and a washer on both sides of a mounting unit having a disk shape. Each second buffer member includes: a cover placed on a cylindrical casing which is fixed to the top of an extension board; a spring inside; and a moving rod moving elastically in the up-down direction by the spring. The electric power line fixing member includes: a fixing socket which rotates around a hinge unit to be opened or closed; and a pair of engaging bands to apply pressure while surrounding a projection unit formed on the fixing rocket.
Patent KR-101385668-B1 (KR)
Title: Low ealasticity acrylic resin composition having waterproof and corrosion protection function and method for preparing the same
Inventor: PARK IL YONG
IPC: C08L33/04
Filed: 2013-09-17
Granted: 2014-04-15
Abstract: Provided is an acryl resin composition comprising 100 wt% of a acrylate monomer; 1-100 wt% of an acryl resin; and 1-60 wt% of ceramic particles. According to this, by coating the acryl resin composition of the present invention on a concrete structure, a water treatment tank, etc., abrasion resistance, chemical resistance, and weather resistance can be improved. Especially, by being used in the water treatment tank, quality of drinking water is improved and abrasivity is low with the passage of time thereby reducing costs for repairing and replacing.
Patent KR-101534032-B1 (KR)
Title: 사용자 데이터 관리가 가능한 무선통신 단말기 및 관리 서버, 그리고 이를 이용한 사용자 데이터 관리 방법
IPC: H04W88/02
Filed: 2013-10-01
Granted: 2015-07-06
Abstract: 본 발명은 데이터 관리가 가능한 무선통신 단말기 및 이와 통신 가능한 데이터 관리 서버에 관한 것으로서, 상세하게는 사용자가 생성한 데이터  및 주변 데이터를 이용하여 사용자의 의도를 추론하고, 사용자 데이터에 관한 태그를 형성함으로써 사용자 사용자 데이터를 체계적으로 관리할 수 있는 발명에 관한 것이다.  
이러한 본 발명은, 무선 통신 단말기를 이용하여 사용자가 생성하거나 사용한 사용자 데이터가 저장되는 메모리부와; 상기 사용자 데이터 생성시, 생성된 사용자 데이터와 시간적 또는 장소적 인접성이 있는 관련 데이터를 수집하는 관련 데이터 수집부와; 상기 상기 관련 데이터 수집부에서 수집된 데이터를 이용하여 상기 사용자 데이터에 태깅될 태그를 생성하여 사용자 데이터에 연계시키는 분석 엔진을 포함하는 것을 특징으로 하는  무선통신 단말기 및 관리 서버, 그리고 이를 이용한 사용자 데이터 관리 방법을 제공한다.
Patent KR-101356809-B1 (KR)
Title: Window server monitoring
Inventor: LEE YONG HWAN
IPC: G06F11/30
Filed: 2013-10-07
Granted: 2014-01-28
Abstract: The present invention relates to a method for monitoring a window server, which is capable of preventing the risk of hacking and quickly dealing with hacking by transmitting monitoring information from the window server to a management server. A method for receiving monitoring information from a window server is provided, the method comprising the steps of: if a user logging in to the window server creates a predetermined administrator event, periodically receiving capture information, in which the screen of the window server is captured, from the window server; receiving additional information associated with the capture information from the window server; connecting the capture information to create a video; creating metadata on the video using the additional information; and connecting and storing the video and the metadata. [Reference numerals] (100) Internet; (110) Window Server; (120) Management server; (130) Administrator terminal
Patent KR-101445234-B1 (KR)
Title: 광 배향막 및 액정 표시 소자
IPC: C07C211/46
Filed: 2013-10-07
Granted: 2014-09-26
Abstract: 본 발명에 의하면, 특정 구조를 가지는 폴리아민산에 직선 편광을 조사하고, 이어서 가열 이미드화를 행함으로써, 액정의 배향 안정성이 우수하고, 전압 유지율이 높은 배향막을 얻을 수 있다. 
본 발명은, 1∼3개의 탄소-탄소 이중 결합 또는 1∼4개의 삼중 결합을 포함하는 불포화 결합 함유기를 주쇄에 가지는 폴리아민산의 용액을 기판에 도포하고, 형성된 막으로부터 용매를 증발시킨 후, 용매를 증발시킨 상기 막에 직선 편광을 조사하고, 이어서 가열해서 폴리아민산이 이미드화되어 이루어지는 광 배향막을 제공한다.
Patent KR-101511437-B1 (KR)
IPC: B60T13/74
Filed: 2013-10-14
Granted: 2015-04-10
Abstract: The present invention relates to an electro-mechanical brake system capable of adjusting a wear by itself (self wear adjust) when a brake pad wears off, which can be used as a parking mode by stably maintaining the force even when the power is turned off. To this the end, the present invention relates to an electro-mechanical brake system which performs braking by pressurizing a pair of disks rotating along with vehicle wheels with a friction pad. The brake system comprises: a rotational bolt rotatably installed inside a caliper housing and rotates in a clockwise or a counterclockwise direction by receiving a driving force of a motor; a medium nut combined and engaged with the outer circumferential surface of one side of the rotational bolt and performing a linear movement in the front-rear direction (the direction of a shaft) when the rotational bolt rotates or performing a rotational movement along with the rotational bolt; a spindle nut screwed to the medium nut and performing a linear movement in the front-rear direction along with the medium nut when the rotational bolt rotates or pressurizing the disk through the friction pad by moving forward when the medium nut rotates so as to perform braking; and a key pin installed to be engaged between the spindle nut and the caliper housing and allowing the linear movement of the spindle nut in the front-rear direction while preventing the rotational movement of the spindle nut.