baber/WOPTO huggingface dataset:
Patent KR-20120000388-A (KR)
Title: Dark purple coloured rice super c3ghi having antiatopic activity via enhancing the immunity
Inventor: RYU SU NOH
IPC: A23L33/00
Filed: 2010-06-25
Abstract: PURPOSE: A method for breeding a super C3GHi black rice plant with an anti-atopic activity is provided to enhance pigment ingredients and to suppress itching. CONSTITUTION: A method for breeding a super C3GHi black rice plant with an anti-atopic activity comprises: a step of artificially cross-breeding a Daerip rice plant with CG2-3-5-1-6-1 system of black rice to breed a novel variety super C3GHi; a step of selecting individuals with high cyanidin 3-glucoside(C3G) content after F3 generation. A pharmaceutical composition for treating atopy contains the novel variety super C3GHi as an active ingredient. A functional food composition for atopy contains the novel variety super C3GHi as an active ingredient.
Patent KR-20120000782-A (KR)
Title: Jig for cleaning filter
Inventor: LEE JOON MOON
IPC: B01D33/50
Filed: 2010-06-28
Abstract: PURPOSE: A jig for washing a filter is provided to change the washing position of the filter by changing the position of a rotating unit to a horizontal direction and a vertical direction. CONSTITUTION: A jig for washing a filter includes a supporting frame(110), a rotating unit(120), a loading stand(130), and a filter installing rod(140). The supporting frame includes upwardly protruded supporting flanges(112, 113). The rotating unit is hinge-combined with the supporting flanges such than the position of the rotating unit is converted into a horizontal direction and a vertical direction. The loading stand is installed on the rotating unit. The lateral side of a cylindrical filter is loaded on the loading stand. The filter installing rod is fixed to the loading stand and is protruded. The filter is inserted into the filter installing rod.
Patent KR-20120002207-A (KR)
Title: Ubiquitous switchboard for using smart remote control doors
Inventor: OH SUK HWAN
IPC: H02B1/26
Filed: 2010-06-30
Abstract: PURPOSE: A ubiquitous type distribution panel for being applied with a smart remote control door is provided to prevent the electric shock of an operator by watching the door state of a distribution panel and remotely controlling a desired door. CONSTITUTION: A distribution panel(100) houses instrument(102) which distributes electricity. An case(110) includes an opening part in one side and an internal space in which instrument is arranged. A door(120) is combined with the case to open and close an opening part of the case. A driving part(130) is arranged to apply mechanical power to open and shut the door. A radio frequency identification tag(140) offers a door control signal to the driving part according to a command of an external device. A coaxial cable(150) passes through the case or the door. A signal relay part(160) includes a relay antenna which is arranged by extending a communication distance.
Patent KR-20120003119-A (KR)
Title: Semiconductor light emitting device and manufacturing method of the same
Inventor: KIM TAE HUN
IPC: H01L33/22
Filed: 2010-07-02
Abstract: PURPOSE: A semiconductor light emitting device and a manufacturing method thereof are provided to improve light extraction efficiency by forming a multiple uneven structure on a substrate made of conductive materials. CONSTITUTION: A first uneven structure(P1) is formed on a first main surface of a substrate(101). A sacrificial layer is formed on the first main surface. A mask with an open area is formed on the sacrificial layer. A second uneven structure(P2) is formed on the substrate. The sacrificial layer and the mask are removed from the substrate. A light emitting laminate is formed on the first and second uneven structures of the substrate.
Patent KR-20120003578-A (KR)
Title: Indoor localization system and method
Inventor: KIM TAE KYEM
IPC: H04W64/00
Filed: 2010-07-05
Abstract: PURPOSE: An indoor positioning system and an indoor positioning method are provided to accurately confirm the position of a user by estimating the position of the user using acceleration and angular acceleration. CONSTITUTION: An indoor positioning system comprises an inertia measurement device(1) and a mobile terminal(10). The inertia measurement device measures the acceleration and angular acceleration of a user using an acceleration sensor(2) and an angular acceleration sensor(3). The mobile terminal estimates the position of the user using the measured acceleration and angular acceleration and corrects the estimated position of the user using simplified map data.
Patent KR-20100085007-A (KR)
Title: Side roll screen
Inventor: KIM YONG HO
IPC: G03B21/58
Filed: 2010-07-09
Abstract: PURPOSE: A side attaching roll screen structure is provided to enable a user to use a stage more widely and variously by installing a back screen in a roll type. CONSTITUTION: A side attaching roll screen structure comprises a roll screen(10), a guide rail(30) and a wire drive unit(60). The roll screen is perpendicularly installed on the lateral side of a stage site. The guide rail forms a driving part(50). The guide rail moves a screen(80) on upper or lower part of the rear wall of the stage or one side of the ceiling and the floor. The wire drive unit is installed on the opposite sides of the driving part and the roll screen. The wire drive unit pulls the screen. A side bar(40) is fixed to one side of the lower part of the inner plate of the guide rail.
Patent KR-20120033362-A (KR)
Title: Polysulfone membrane and manufacturing method thereof
Inventor: CHI SUNG DAE
IPC: B01D69/00
Filed: 2010-07-30
Abstract: PURPOSE: A polysulfone-based separating membrane and a method for preparing the same are provided to expand the life of the membrane by preventing the reduction of the transmittance of the membrane and improving the water permeability of the membrane. CONSTITUTION: A polysulfone-based separating membrane includes 1-10 weight% of sulfonated polysulfone-based polymer and a polysulfone-based polymer containing polymer solution. The sulfonated polysulfone-based polymer is represented by chemical formula 1. In chemical formula 1, m/(n+m) is between 0.2 and 0.7; and x is between 50 and 1000. The sizes of pores in the polysulfone-based separating membrane are asymmetrically distributed. The polysulfone-based polymer containing polymer solution is one or the mixture of polysulfone, polyethersulfone, and polyallylethersulfone polymer.
Patent KR-20120014371-A (KR)
Title: Apparatus for processing grooves on the side of the curb stone and median strip
Inventor: LEE YUN KEUN
IPC: B24B7/22
Filed: 2010-08-09
Abstract: PURPOSE: An apparatus for processing a recess on the side of a curb or a median strip is provided to reduce process time and costs by consecutively performing cutting and grinding processes. CONSTITUTION: An apparatus for processing a recess on the side of a curb or a median strip comprises a main body(10), a cutting processing part(20), a grinding part(30) and a controller(40). The main body comprises a mobile tool on the lower part. The cutting processing part is installed on the upper right side of the main body. The cutting processing part cuts the side of the curb and median strip and forms a recessed part. The grinding part is installed in the upper left of the main body. The grinding part grinds the site in which the recess is formed through the cutting processing part. The controller controls the cutting processing part and the grinding part.
Patent KR-20110079476-A (KR)
Title: A skateboard
Inventor: CHOI KWANG SAM
IPC: A63C17/12
Filed: 2010-08-11
Abstract: PURPOSE: A skateboard is provided to enable a user to suddenly stop the skateboard by installing a brake pedal in a footboard. CONSTITUTION: A skateboard comprises a base frame, a foot power source, a power transmission, a seesaw motion unit, a rear drive unit, a brake unit, and a front drive unit. In the base frame(20), first and second lateral frames(21,22) are arranged to both sides of the skateboard. The power transmission(50) is driven by the seesaw motion unit(40). The rear drive unit is driven by the power transmission. The brake unit is installed in the foot power source and rear drive unit.
Patent KR-20120016737-A (KR)
Title: 지반천공장비
Inventor: BAIK NAM JIN
IPC: E02D7/08
Filed: 2010-08-17
Abstract: 지반천공장비가 개시된다. 케이싱을 파지하며, 상기 케이싱 내부로 스크류를 삽입하여 지반에 굴착공을 형성하고 상기 굴착공 내부로 상기 케이싱을 삽입할 수 있는 천공장치와; 시트파일을 파지할 수 있는 바이브레터;를 포함하는 지반천공장비가 개시된다.
Patent KR-20120017313-A (KR)
Title: Rfid tag for panel of assembly blocks in shipbuilding
Inventor: CHOI TAE HOON
IPC: G06K19/077
Filed: 2010-08-18
Abstract: PURPOSE: A ship panel RFID tag is provided to attach a RFID with panel information to a panel and quickly read RFID tag information, thereby efficiently managing production process. CONSTITUTION: A fixed panel(10) performs as a body unit. A magnet is attached on the rear side of the fixed panel. An information page storage unit(20) is attached on the front side of the fixed panel. A RFID tag insertion unit(30) is attached in parallel to the information page storage unit on the front side of the fixed panel. A handle unit(40) is installed on the upper side of the fixed panel. The handle unit easily transfers the fixed panel.
Patent KR-20110021679-A (KR)
Title: Nonvolatile semiconductor memory device and manufacturing method thereof
Inventor: HIGUCHI MASAAKI
IPC: H01L27/115
Filed: 2010-08-24
Abstract: PURPOSE: A nonvolatile semiconductor memory and a manufacturing method thereof are provided to improve the charge maintaining characteristic of the memory cell by reducing the damage to the boundary surface between a tunnel insulation layer and a semiconductor layer. CONSTITUTION: A first insulation layer(102) is formed on the periphery of a semiconductor layer(101). A charge storing layer(103) is formed on the first insulation layer. A second insulation layer(104) is formed on the charge storing layer. A control gate electrode(105) is formed on the second insulation layer. The inelastic scattering film(103b) reducing the energy of the electronics by the scattering is formed on one of the charge storing layer and the second insulation layer.
Patent KR-20120021974-A (KR)
Title: Prefabricate tunnel structure using wave type steel plate
Inventor: JUNG CHANG HUN
IPC: E21D11/20
Filed: 2010-08-24
Abstract: PURPOSE: A prefabricated tunnel structure using a corrugated steel plate is provided to increase water tight between unit corrugated steel plates or tunnel structures and facilitate assembly of the unit corrugated steel plate. CONSTITUTION: A prefabricated tunnel structure using a corrugated steel plate is composed as follows. Fastening holes(221a), forming in a flange plate(221) of a unit corrugated steel plate(20), and fastening holes, forming in a relative flange plate of adjacent unit corrugated steel plate, are coupled. The fastening holes are coupled with fastening bolts and nuts to form a semicircular or arch-shaped tunnel structure(10). The fastening holes, forming in a vertical flange(212), and the fastening holes, forming in a relative vertical flange of adjacent unit corrugated steel plate, are coupled. The fastening holes are coupled with the fastening bolts and nuts to expand the tunnel structure in longitudinal direction.
Patent KR-20120019247-A (KR)
Inventor: KIM YOUNG SUB
IPC: A47L13/58
Filed: 2010-08-25
Abstract: 본 발명은 마대걸레의 세탁 탈수장치에 관한 것이다. 
본 발명의 마대걸레의 세탁 탈수장치는, 상부가 개방된 형태로 형성되어 있으며, 본체 내부 일측에 오염된 마대걸레를 세척하는 세척실과, 마대걸레를 탈수하는 탈수실로 구분되며, 탈수실에는 본체 상부에 탈수케이스가 바닥면과 이격된 채 회전 가능하도록 설치되어 있고, 하부에 설치케이스가 설치되어 있으며, 설치케이스에는 페달의 회동에 의해 회전 가능하도록 구성된 회전기어가 설치되어 있고, 회전축이 회전기어의 중심과 탈수케이스의 저부 중심을 연결하도록 설치되어, 페달의 회동에 따라 회전기어가 회전하고, 회전기어에 연결된 회전축이 회전함에 따라 탈수케이스가 회전하도록 구성된, 마대걸레의 세탁 탈수장치에 있어서, 상기 페달의 저부 일측에는 기어연결부가 돌출되어 형성되어 있고, 상기 회전기어와 맞물리도록 구성된 랙기어가 설치케이스 상부에 전진 또는 후진 가능하도록 설치되어 있되, 랙기어의 일측에는 수직 방향으로 슬라이딩홀이 형성되어 있으며, 연결핀이 상기 슬라이딩홀과 기어연결부를 관통하여 연결되어 페달의 회동에 따라 연결핀이 슬라이딩홀을 따라 상하로 이동하면서 랙기어가 전진 또는 후진하도록 구성되어 있으며, 탈수케이스의 하부에 마대걸레 헤드의 저부가 끼워지도록 된 연결부재가 탈수케이스와 일체로 설치되어 있고, 상기 설치케이스의 상부 일측에 상기 랙기어와 맞물리도록 보조회전기어가 설치되어 있고, 보조회전기어의 중앙에 보조회전축이 연결되어 있으며, 보조회전축의 상부에 걸레 헤드의 저부가 끼워져 걸레 헤드를 회전시키도록 구성된 보조연결부재가 세척실 바닥 상부로 돌출된 채 설치되어 있어, 페달의 회동에 의해 연결부재와 보조연결부재가 동시에 회전하도록 구성된 것을 특징으로 한다. 
본 발명에 의해, 세척실 바닥에 회전 가능하도록 된 보조연결부재를 설치하고, 탈수케이스의 바닥에 회전 가능하도록 된 연결부재를 설치하며, 보조연결부재와 연결부재는 설치케이스 내부에 설치된 랙기어의 작동에 의해 회전 가능하도록 구성함으로써 하나의 페달 작동에 따라 탈수 및 세척을 동시에 실시할 수 있게 된다.
Patent KR-20120028765-A (KR)
Title: Composite beam using built-up beam of profiled steel and deck plate
Inventor: PARK KEUM SUNG
IPC: E04C3/02
Filed: 2010-09-15
Abstract: PURPOSE: A composite beam using a bent steel plate type steel beam and a deck plate is provided to reduce ceiling height by hanging a deck plate on a bent steel plate type steel beam for coupling. CONSTITUTION: A composite beam using a bent steel plate type steel beam and a deck plate comprises a bent steel plate type steel beam(10), multiple fixing members, multiple deck plates, and a concrete. The bent steel plate type steel beam is formed by bending a steel plate to have a lower flange(11), a pair of webs(12), and a pair of upper flanges(13). The lower flange has a first concrete housing space inside. The pair of the webs has a second concrete housing space inside above the first concrete housing space. The pair of the upper flanges is horizontally extended to the pair of webs to provide a fixed surface. The fixing members are installed in the upper flange of the bent steel plate type steel beam in predetermined interval along longitudinal direction. The fixing member hangs a deck plate on the bent steel plate type steel beam and fixes to couple with the concrete. The deck plate is coupled by hanging on both sides of the bent steel plate type steel beam. The concrete is placed on the top of the deck plate and inside the bent steel plate type steel beam in order to form the beam and the slab in one body.
Patent KR-20120034900-A (KR)
Title: Mobile terminal and method for transmitting image thereof
Inventor: HWANG MYUNG HEE
IPC: H04M1/72457
Filed: 2010-10-04
Abstract: PURPOSE: A mobile terminal and an image transmitting method thereof are provided to quickly transmit a photographing image to a counterpart terminal based on a preset image transmitting condition. CONSTITUTION: A user input unit(130) receives a user action for setting an image transmitting condition. A control unit(180) sets an image transmitting condition corresponding to the inputted user action. The control unit checks the set image transmitting condition using the camera. A wireless communication unit(110) transmits the photographed image to at least one counterpart terminal based on the checked image transmitting condition.
Patent KR-20120036165-A (KR)
Title: 와이어드럼의 용접와이어 꼬임 방지 장치
Inventor: SHIM CHANG SEOK
IPC: B65D85/04
Filed: 2010-10-07
Abstract: 본 발명은 와이어드럼에 적치된 와이어를 용접부위로 이송하여주는 와이어공급라인에 관한 것으로, 와이어드럼(110)에 적치된 와이어(115)를 제1,2공급기(120,130)내에 구성된 롤러(125,135)의 회전력을 이용하여 연속적으로 용접부위(140)로 안내하는 와이어드럼(110)의 완충장치로서, 상기 와이어드럼(110)의 하부면에 상기 와이어드럼(110)을 제1,2공급기(120, 130)의 회전비율에 대응하는 속도로 회전시키는 회전수단(10)이 장착되면서, 상기 와이어드럼(110)의 상단부에 상기 와이어드럼의 회전과정에서 발생하는 상기 와이어(115)의 마찰저항을 흡수시키는 흡수수단(20)이 장착되어져, 와이어드럼에 적치되어 공급기를 통해 용접부위로 안내되는 와이어의 꼬임이나 강제풀림현상이 예방되어 용접에 따른 불량율이 최소화되어 용접품질이 향상될 뿐만 아니라 용접에 따른 작업하중 및 작업공수가 최소화되어 각종 부대비용이 절감되게 한 것이다.
Patent KR-20120038227-A (KR)
Title: Auto-flushing device for urinal
Inventor: CHO YONG HYUN
IPC: E03D5/10
Filed: 2010-10-13
Abstract: PURPOSE: A water flushing system for a urinal is provided to reduce the waste of water by automatically supplying water to a urinal when a user approaches the urinal and the user is deviated from the urinal. CONSTITUTION: A water flushing system(10) for a urinal comprises a water supply unit(100), a detection unit(200), and an operation unit(300). The water supply unit supplies water to a urinal(1). The detection unit is formed on the bottom of a toilet. The detection unit is downward moved by the weight of a user and transfers pressure to the operation unit. When the user is deviated from the urinal, the detection unit receives the transferred pressure from the operation unit and is restored. The operation unit operates the water supply unit to supply water to the urinal.
Patent KR-20120039355-A (KR)
Title: Tape cleaner
Inventor: KIM YONG SEOK
IPC: A47L25/08
Filed: 2010-10-15
Abstract: PURPOSE: A tape cleaner for removing foreign material using two rollers is provided to attach foreign material to the adhesive surface of the tape since a tape is released and reeled in a winding roller. CONSTITUTION: A tape cleaner for removing foreign material using two rollers comprises an operation roller(100) and a winding roller(200). The operation roller and the winding roller operate together. When the tape is released from the operation roller, the adhesive surface of the tape is exposed, and foreign material is attached thereto. An operation pulley(120) is formed on one end of the operation roller. A winding pulley(220) is formed on one end of the winding roller.
Patent KR-20110047149-A (KR)
IPC: A61B18/18
Filed: 2010-10-28
Abstract: PURPOSE: An accelerated particle radiation facility is provided to reduce facility cost by securing the miniaturization of a structure. CONSTITUTION: An accelerated particle radiation facility comprises a radiation device(3) and a structure(6). The radiation device has a rotatable unit rotating around the rotary shaft circumference. The radiation device radiates the accelerated particles generated from a particle accelerator. The structure has an installation space for installing the radiation device. The radiation device has a radiation part, an introduction line, and a weight part. The introduction line introduces accelerated particles to the radiation part. The weight part maintains weight balance.
Patent KR-20120048371-A (KR)
Title: A cluster head selection scheme considering distance and energy in wireless sensor networks
Inventor: SON NAM RAE
IPC: H04L12/28
Filed: 2010-11-05
Abstract: PURPOSE: A cluster head selection method in consideration of distance and energy of a wireless sensor network is provided to reduce unnecessary energy consumption in a wireless sensor network having various network environments. CONSTITUTION: A BS(Base Station) selects a cluster head having the maximum distance value between a node and a cluster head as an optimum cluster head. The BS selects a new cluster head by using a cost value within set error range. The BS selects a node which is adjacent to a location coordinate of the determined new cluster head as the final cluster head.
Patent KR-20120048441-A (KR)
Title: Underwater vehicle battery module having function to prevent explosion
Inventor: SONG WOON SUNG
IPC: H01M2/34
Filed: 2010-11-05
Abstract: PURPOSE: A secondary battery module for underwater vehicle having an explosion prevention function is provided to enhance safety of the secondary battery by using inert gas. CONSTITUTION: A secondary battery module for underwater vehicle having an explosion prevention function comprises a plurality of secondary battery unit cells(10), a casing which inert gas is filled inside and secluded from outside while accepting a plurality of secondary battery unit cells, a pressure sensor which is installed inside the casing and senses pressure, and a control panel which controls supply of the inert gas according to pressure of inside the casing. The inert gas is nitrogen. The secondary battery is lithium ion battery.
Patent KR-20120049539-A (KR)
Inventor: YANG GUK JIN
IPC: F41A27/28
Filed: 2010-11-09
Abstract: 공간 내에서 대상물의 이동 및 위치 설정을 위한 병렬형 머니퓰레이터(manipulator)를 발사되는 물체의 발사방향을 결정하는 부분에 연결되도록 배치시켜 가동함으로써 발사되는 물체의 발사방향을 결정토록 구성한 발사장치.
Patent KR-20120053905-A (KR)
Title: Cover structure of telecommunication cabinet
Inventor: SONG JAE DAL
IPC: H04Q1/02
Filed: 2010-11-18
Abstract: PURPOSE: A communication box cover structure is provided to improve the marketability and workability of a communication box by automatically creating a protection film on the communication box. CONSTITUTION: A door(110) of a box(100) is combined with the box by a hinge unit. A cover unit(200) is arranged on the box. When the door is opened or closed, the cover unit is slid. The cover unit includes a cover panel(210) and a connector(220). The cover panel includes a guide groove(211). One side of the connector is inserted into the guide groove. Other side of the connector is fixed to upper end of the door.
Patent KR-20110055467-A (KR)
Title: Sensor chip, sensor cartridge, and analysis apparatus
Inventor: AMAKO JUN
IPC: G01N33/483
Filed: 2010-11-18
Abstract: PURPOSE: A sensor chip, a sensor cartridge, and an analysis apparatus are provided to improve the sensitivity of a sensor and to identify target materials from a Raman spectroscopy spectrum. CONSTITUTION: A sensor chip comprises a base member(10), multiple first protrusions(11), lower supporters(10a), second protrusions(12), third protrusions(13), and a diffraction grid(9). The base member has a flat part(10s). The first protrusions are arranged on the flat part of the base member. The lower supporters are located between the first protrusions. The second protrusions are formed on the top of the first protrusions. The third protrusions are formed in the lower supporters. The diffraction grid has a metal surface and is formed on the flat part of the base member. A target material is arranged on the diffraction grid.
Patent KR-20120076449-A (KR)
Inventor: KIM JEONG TAE
IPC: G06Q10/06
Filed: 2010-11-24
Abstract: 본원 발명은 그래픽 기반의 동적 기업 성과 관리 방법 및 그 방법에 대한 컴퓨터 프로그램을 저장한 기록매체에 관한 것으로, 보다 상세하게는 기업의 성과 관리를 도식화하여 시각적으로 가시화함으로써 관리상 편의를 도모하고 동적 성과 관리가 가능하게 하는 그래픽 기반의 동적 기업 성과 관리 방법 및 그 방법에 대한 컴퓨터 프로그램을 저장한 기록매체에 관한 것이다. 
본 발명에 의한 그래픽 기반의 동적 기업 성과 관리 방법 및 그 방법에 대한 컴퓨터 프로그램을 저장한 기록매체는 종래의 텍스트 입력 위주의 성과관리 운영설계 및 관리로 조직설계, 비전과 전략, 전략맵, 핵심성공요소(CSF) 및 주요성과지표(KPI)등 성과관리의 일련 과정의 수립, 수정등이 번거롭고 복잡한 문제점을 해결할 수 있다. 
본 발명에 의한 그래픽 기반의 동적 기업 성과 관리 방법 및 그 방법에 대한 컴퓨터 프로그램을 저장한 기록매체에 의하면 도형화, 플로우차트화 함으로써 시각적인 가시화 및 관리상 편의를 증진 시킴으로  성과 관리의 이해도 및 학습효과를 높일 수 있는 보다 동적(Dynamic)인 균형성과표(BSC : Balanced Score Card)기반 성과관리가 가능한 효과가 있다.
Patent KR-20120056641-A (KR)
Title: Method and apparstus of detecting dissimilar type commnunication system
Inventor: KO GWANG ZEEN
IPC: H04B7/26
Filed: 2010-11-25
Abstract: PURPOSE: A heterogeneous communication system detection method and apparatus thereof are provided to determine kinds of heterogeneous communication system based on a system kind database by including silent duration information corresponding to the system kind database. CONSTITUTION: An RF(Radio Frequency) signal reception unit(201) receives signals from a specific communication system. A silent duration evaluation unit(202) evaluates silent duration between frames based on the received signals. A system kind determination unit(203) determines kinds of the specific communication system based on the evaluated silent duration. The specific communication system transmits data of a frame unit. The silent duration is respectively applied to the communication systems.
Patent KR-20120062243-A (KR)
Title: Degradability velocity control method of biodegradable magnesium and biodegradable magnesium using thereof
Inventor: KIM JUNG GU
IPC: A61L31/02
Filed: 2010-12-06
Abstract: PURPOSE: A controlling method of decomposition speed of biodegradable magnesium and a biodegradable magnesium for medical devices using thereof are provided to quantify relationship between the biodegradable magnesium surface area and decomposition speed, thereby controlling exposing surface are in vivo. CONSTITUTION: A controlling method of decomposition speed of biodegradable magnesium comprises the following steps: controlling surface area of biodegradable magnesium which is exposed in vivo; controlling decomposition speed of the biodegradable magnesium; reducing decomposition speed of the biodegradable magnesium if exposed surface area of the biodegradable magnesium is increased; increasing decomposition speed of the biodegradable magnesium if the exposed surface area of the biodegradable magnesium is diminished. Relationship between the exposed surface area of the magnesium with the decomposition speed can be quantized as formula 1.