baber/WOPTO huggingface dataset:
Patent KR-20100119523-A (KR)
Title: Inverter system for charging/discharging grid connected using high density secondary cell and operation method therefor
Inventor: CHO JUN SEOK
IPC: H02J3/38
Filed: 2010-04-30
Abstract: PURPOSE: An inverter system for charging/discharging grid connected using high density secondary cell and operation method therefore are provided to compensate power unbalance between power consumption and distribution power generation by charging a secondary battery generated from a distribution power source. CONSTITUTION: A solar battery output unit(100) generates and outputs a solar current through a MIPPT(Maximum Power Point Tracker). An inverter(200) changes a solar current supplied from the solar battery output unit into AC current and applies it to a distribution system. A charge/discharge controller(300) controls the power flow between the power battery output unit and the inverter to be balance. The battery discharges spare power which is charged through a discharging unit.
Patent KR-20110123978-A (KR)
Title: Shutting assembly for separation of first rain and non-point source a contaminant purification system of first rain having this
Inventor: OH HONG SOK
IPC: E03F5/12
Filed: 2010-05-10
Abstract: PURPOSE: An initial rainwater separating assembly and a pollution material handling system for initial rainwater are provided to separate and purify only initial rainwater comprising pollution materials if it rains and to enable rainwater to smoothly move along a drain pipe if the amount of rainfall increases. CONSTITUTION: A pollution material handling system for initial rainwater comprises a drain pipe(P), an assembly(10), a purifying filter(150), and a purifying tank(200). The drain pipe guides rainwater if it rains. The assembly is installed on the drain pipe and guide initial rainwater to a discharge pipe(100). The assembly opens the drain pipe and makes smooth movement of rainwater if the amount of rainfall becomes a given level after initial rainwater is discharged. The assembly consists of a rotating shaft(40) and a double plate. The rotating shaft is installed on the drain pipe. The double plate rotates around the rotating shaft.
Patent KR-20110126945-A (KR)
Title: Camera module having auto-focus apparatus
Inventor: KANG BYUNG HOON
IPC: H04N5/225
Filed: 2010-05-18
Abstract: PURPOSE: A camera module having an auto-focus apparatus is provided to secure an efficient tilt performance by exactly moving the camera module. CONSTITUTION: A piezoelectric actuator(110) generates a moving force of a driven body. A rod(120) transfers the moving force of the piezoelectric actuator to the driven body. A connection member(150) connects the rod and a lens barrel(140) using a magnetic force. A rod guide groove corresponding to the rod is formed on the connection member. The rod is inserted into the rod guide groove.
Patent KR-20110127394-A (KR)
Inventor: KANG SEUNG TACK
IPC: H01Q5/15
Filed: 2010-05-19
Abstract: PURPOSE: A 2D metamaterial CRLH zeroth order resonance DNG and ENG antenna of a micro strip patch structure which is capacitively coupled with a rectangular ring is provided to configure a rectangular ring-path zeroth resonance antenna which is made of single cells, thereby maintaining the low profile of a micro strip. CONSTITUTION: A metamaterial CRLH zeroth order resonance DNG and ENG antenna includes a rectangular ring with a patch and an interval for forming a serial capacitance of left and right hand structures. The metamaterial CRLH zeroth order resonance DNG and ENG antenna includes a shortcut pin array to form a shunt inductance of a complex left/right hand transmission structure. A rectangular ring(12) forms a serial capacitance with a gap. A shunt inductance is formed by arranging shortcut pins(13) of a rectangular ring. The size of the gap for determining the serial capacitance gets smaller according to a desired resonance point value.
Patent KR-20100131351-A (KR)
Inventor: KIM CHIL YOUNG
IPC: A61K33/20
Filed: 2010-05-20
Abstract: PURPOSE: A producing method of medical treatment sterilized water containing the low concentration residual chlorine is provided to prevent the generation of massive amount of residual chlorine. CONSTITUTION: A producing method of medical treatment sterilized water comprises the following steps: locating an electrode(100) inside salt water(111); applying the DC current to the electrode, and changing the direction of the current at least one time; and maintaining the low concentration of the residual chlorine.
Patent KR-20110129315-A (KR)
Inventor: KIM SO YUEN
IPC: A61H9/00
Filed: 2010-05-25
Abstract: 본 발명은 안마의자의 하부에 수조를 구비하고 등받이부에 수직, 수평방향으로 이동가능한 물 분사기를 구비하여 사람에게 물을 분사하여 의자에 앉은 사람을 뭉친 근육을 풀어주는 안마의자에 관한 것으로 보다 상세하게는 수직, 수평방향으로 이동가능한 물 분사기, 물 분사를 위한 펌프, 물을 공급하기 위한 수조, 물 분사기 사용자가 물에 젖는 것을 방지하는 방수 등받이로 구성된 것을 특징으로 하는 물 분사를 이용한 안마의자에 관한 것이다.
Patent KR-20110131475-A (KR)
Title: Cable division coupler and its connection system
Inventor: LIM CHEOL SOO
IPC: H01R25/00
Filed: 2010-05-31
Abstract: PURPOSE: A wiring coupler and connecting system thereof are provided to steadily transmit a USB signal in the long distance. CONSTITUTION: First to sixth connection units(10,11,12,12-1,13,13-1) are settled on a substrate. The first connection unit is connected to the third connection unit. The third connection unit is connected to the fourth connection unit. The second connection unit is connected to the fifth connection unit. The fifth connection unit is connected to the sixth connection unit. The third connection unit is separated into an Internet connection unit and a USB connection unit.
Patent KR-20110131572-A (KR)
Title: A method of isolating a non-diffusible and local-paralyzing botulinum toxin subfraction from conventional toxin preparations for clinical use
Inventor: CHUNG YONG HOON
IPC: A61K35/74
Filed: 2010-05-31
Abstract: PURPOSE: A method for purifying non-diffusion botulinum toxin with local muscular paralytic effect is provided to ensure quick and continuous muscular paralysis. CONSTITUTION: A method for purifying non-diffusion botulinum toxin comprises: a step of performing anion ion-exchange resin chromatography of purified botulinum toxin type A formulation to isolate a sub-fraction; and a step of obtaining non-diffusion botulinum toxin fraction which maintains A260/A280 value at 0.4-0.6. The non-diffusion botulinum toxin contains at least 150ppb of Zn ion, at least 80ppb of Fe ion, and at least 140ppb of Mg ion per 100U/ml of the toxin.
Patent KR-20110131827-A (KR)
Title: 차량용 스티프너 유닛
Inventor: KOO DO HOI
IPC: B62D25/08
Filed: 2010-05-31
Abstract: 본 발명은 범퍼빔의 양측 하부에 각 일단이 용접되고, 각 타단은 전방을 향하여 절곡 형성되는 파이프 형상의 브라켓; 양단이 차체 길이방향으로 절곡 형성되어 상기 각 브라켓의 타단에 각각 삽입된 상태로 일측에서 상기 브라켓과 함께 압착부를 형성하여 고정되는 파이프 형상의 스티프너; 및 상기 각 브라켓의 타단를 통하여 삽입된 상태로, 상기 각 브라켓의 일측에 압입되어 형성되는 지지부와 상기 스티프너의 각 선단 사이에 지지되는 스프링을 포함하는 차량용 스티프너 유닛을 제공한다.
Patent KR-20110134126-A (KR)
Title: Preparation and application of bispyrazolyl containing cobalt complexes as catalyst for polymerization of polar vinyl monomers
Inventor: LEE HYO SUN
IPC: C07F15/06
Filed: 2010-06-08
Abstract: PURPOSE: A method for preparing a polymer of monomers with polar vinyl group using cobalt complex is provided to ensure different stereospecificity from polymethylmethacrylate(PMMA). CONSTITUTION: A covalt complex contains bispyrazolyl ligand of chemical formula 1. In chemical formula 1, R, R1, and R2 are same or different hydrogen and alkyl group of 1-10 carbon atoms; n is 1-3 integer; M is cobalt; and X is halogen. A method for preparing the cobalt complex containing bispyrazolyl ligand of chemical formula 1 comprises a step of reacting N,N-bispyrazolyl anyl derivative of chemical formula 5 with cobalt chloride(II). A method for preparing the polymer comprises a step of polymerizing the monomers with polar vinyl group using the cobalt complex as a catalyst. The monomer with polar vinyl group is vinyl acete, acryalte, or alkyl methacrylate.
Patent KR-20110138000-A (KR)
Title: Composition comprising colored-bean extracts
Inventor: KIM JIN KWAN
IPC: A61P7/02
Filed: 2010-06-18
Abstract: PURPOSE: An antithrombotic composition containing colored bean extract and fraction thereof is provided to contain adenosine and to treat cardiovascular and cerebralvascular diseases and hypertension. CONSTITUTION: An antithrombotic composition contains colored bean extract isolated using water, C1-C5 alcohol, or mixture thereof and organic acid. The organic acid includes citric acid, acetic acid, butyric acid, palmitic acid, oxalic acid, tartaric acid, carboxylic acid, or sulfonic acid. The C1-C5 alcohol is methane, ethanol, isopropylalcohol, n-propyl alcohol, n-butanol, or isobutanol. A fraction of the extract is prepared by fractioning the alcohol extract of colored beans using a synthetic adsorption column containing polystylene and benzene polymers.
Patent KR-20120000121-A (KR)
Title: Sandwich plate and cargo tank for liquefied gas having the same
Inventor: PARK TAE DONG
IPC: B32B15/20
Filed: 2010-06-25
Abstract: PURPOSE: A sandwich plate is provided to improve ultralow temperature properties. CONSTITUTION: A sandwich plate comprises a metal layer(110), a core layer(120), an aerogel layer(130), and a bonding layer(140). The core layer is inserted between the pair of the metal layers. The core layer comprises elastomer. The aerogel layer is inserted between the pair of the core layer. The aerogel layer has fabric shape. The bonding layer is inserted between the metal layer and the core layer. The bonding layer comprises a material containing a glass wool.
Patent KR-20120000283-A (KR)
Title: Apparatus and method for acquiring the state information of disconnect switch for substation automation system based on network
Inventor: YOON JANG WAN
IPC: H02J13/00
Filed: 2010-06-25
Abstract: PURPOSE: A disconnector state information acquiring apparatus for a network based substation automation system and a method thereof are provided to transfer only simple information of a disconnector to the system through a network, thereby simply arranging a GIS(Gas Insulated Switchgear). CONSTITUTION: A fixing part(10) is fixed within a disconnector. A rotating part(20) is arranged in order to be rotated within the fixing part. A photoelectric sensor(30-1,30-2) for acquiring disconnector input state information is installed in a first surface of the fixing part. A position displaying device(50-1,50-2) for acquiring the disconnector input state information is installed in a first surface of the rotating part. The photoelectric sensor for acquiring the disconnector input state information and the position displaying device for acquiring the disconnector input state information detect the rotation of the rotating part.
Patent KR-20120000362-A (KR)
Title: Repressing cast for forming 3d shaped cover glass for touch panel by repressing process method for forming 3d shaped cover glass using the cast and 3d shaped cover glass for touch panel formed using the method
Inventor: CHO UN CHUNG
IPC: C03B23/03
Filed: 2010-06-25
Abstract: PURPOSE: A three dimension shaped cover glass manufacturing mold for a tough panel through a re-pressing process, a method for the same using the manufacturing mold, and the three dimensional shaped glass manufactured by the same are provided to prevent the generation of cracks and damages by forming one sides of the cover glass in a curved shape. CONSTITUTION: A flat-shaped thin film cover glass(20) is shaped. The flat-shaped thin film cover glass is loaded on a lower base(110). An upper base(120) compresses the upper side of the cover glass based on the self weight of the upper base. A bending part(130) represses one side of the cover glass under a high temperature in order to be shaped into a curved shape. One lower part of the bending part is curved. The corresponding part of the lower base to the bending part is curved.
Patent KR-20120000627-A (KR)
Title: Glycemic index checking method and unit with mobile phone
Inventor: JEONG JIN UK
IPC: H04W4/90
Filed: 2010-06-28
Abstract: PURPOSE: A glycemic index checking method and unit with a mobile phone is provided to automatically record a measured result to a calendar which is included in portable communication terminal the and to automatically transmit the recorded value to a blood sugar management server. CONSTITUTION: The controller of a portable communication terminal(200) outputs all types of data according to the blood measurement mode on the display unit of a portable communication terminal through a signal input and output with a blood sugar program module. The controller automatically records a measured value in a calendar which is included in the portable communications terminal. The controller drives a communication module in the measured value is over the dangerous value. The controller automatically transmits the measured value to a blood sugar management server(300). The controller transmits a preset text message to a set portable communication terminal number for informing the situation in which the blood-sugar level is over the dangerous value.
Patent KR-20120000672-A (KR)
Title: Electronic device and method of controlling the same
Inventor: CHO BEOM SEOK
IPC: G11B20/10
Filed: 2010-06-28
Abstract: PURPOSE: An electronic device and a method of controlling the same are provided to control the content reproduction by relating with an event. CONSTITUTION: A wireless communication unit(110) is connected to a local network. If a first mobile terminal enters the local network, a control unit(180) automatically outputs a control signal which reproduces the preset content to other electronic device included in the local network corresponding to a first mobile terminal or a first user of a first mobile terminal. The local network is an DLNA(Digital Living Network Alliance) network. A different electronic device is an DMR(Digital Media Renderer) included in the DLNA network.
Patent KR-20120000970-A (KR)
Title: Drillship having hemisphere shaped hull
Inventor: CHO SE HO
IPC: B63B35/44
Filed: 2010-06-28
Abstract: PURPOSE: A drilling ship with hemi-spherical hull is provided to enable dynamic position control to be easily performed by reducing external impact even if great external force is applied to hull. CONSTITUTION: A drilling ship(100) comprises thrusters(130). When the drilling ship is located on one point of sea, the drilling ship has hemi-spherical hull(110) so that even if external force is applied to the drilling ship, dynamic position control can be easily made. The thrusters are installed on the bottom of the hull at regular intervals. The drilling ship comprises 6 thrusters.
Patent KR-20120009687-A (KR)
Title: Mixed Manganese Ferrite Coated Catalysts, Method of Preparing Thereof and Method of Preparing 1,3-Butadiene Using Thereof
Inventor: KWON YONG TAK
IPC: C07C11/167
Filed: 2010-07-20
Abstract: PURPOSE: A catalyst coated with hybrid manganese ferrite, a method for preparing the same, and a method for preparing 1,3-butadiene using the same are provided to simplify the synthetic path and the constituents of the catalyst and to improve the reproducibility of the catalyst. CONSTITUTION: A precursor solution containing a manganese precursor and an iron precursor are prepared. The Fe/Mn atomic ratio of the manganese precursor and the iron precursor is between 2.0 and 2.5. The precursor solution is mixed with a basic solution to be co-precipitated. The co-precipitated solution is washed and filtered to obtain a solid sample. The solid sample is dried. The dried solid sample is mixed with a binder, distilled water, and acid under room temperature. The weight ratio of the solid sample, the binder, the distilled water, and the acid is 1:0.5-2:6-12:0.3-0.8. A carrier is introduced into the mixture to be mixed, and the mixture is dried.
Patent KR-20120008949-A (KR)
Title: Structure of permanent magnetic for preventing demagneticzation
Inventor: JUNG DAE SUNG
IPC: H02K1/27
Filed: 2010-07-21
Abstract: PURPOSE: A permanent magnet structure is provided to supplement demagnetizing force by forming the end part of a permanent magnet thicker than a central part. CONSTITUTION: A rotor(120) is rotatably accepted in the inner side of a stator(111). The rotator comprises a plurality of permanent magnet sets(121). The plurality of permanent magnet sets is inserted into an installation groove which is arranged in a columnar direction. The thickness of a center part of the plurality of permanent magnet sets is thinner than the thickness of an end part distal to the center of rotation. The distance between the center part and the stator is longer than the distance between the end part and stator.
Patent KR-20110129323-A (KR)
Title: Foldable tent
Inventor: CHOI YOON SIK
IPC: E04H15/44
Filed: 2010-08-09
Abstract: PURPOSE: A foldable tent capable of convenient contain is provided to enable a easily contain the tent by folding the tent. CONSTITUTION: A foldable tent capable of convenient contain comprises a lower support unit(100) and a upper support unit(200). The lower support unit supports the upper support unit about the holding surface. The lower support unit comprises four support members(110) and four first X-bar connection(150). The four support members are expanded from the holding surface. The upper support unit is formed on the top of the lower support unit and supports the tent cover. The upper support unit comprises a second X-bar connection, a center post, and a tilt retention member(230). The tilt retention member prevents the slack of the tent cover by connecting the lower support unit and the center post.
Patent KR-20120016545-A (KR)
Title: A carbon nano tube transparent conductive thin film with low face resistance and the fabrication method thereof
Inventor: LEE JEON KOOK
IPC: H01B5/14
Filed: 2010-08-16
Abstract: PURPOSE: A transparent conductive thin film is provided to improve the electric conductivity by reducing contact resistance between carbon nanotubes. CONSTITUTION: A transparent conductive thin film comprises a sheet containing carbon nanotubes(1), carbon nanofibers(5) grown from the carbon nanotubes, and a catalyst in one end of the carbon nanofibers. The manufacturing method of the transparent conductive thin film comprises: a step of forming the sheet containing carbon nanotubes; a step of forming catalyst particles(4) or a thin film containing the catalyst on the sheet; and a step of growing carbon nanofiber in the carbon nanotubes by supplying gas including hydrocarbon.
Patent KR-20120020371-A (KR)
Title: Tundish cover
Inventor: JU JEONG HONG
IPC: B22D41/14
Filed: 2010-08-30
Abstract: PURPOSE: A tundish cover is provided to reduce construction costs by facilitating the dismantling and rebuilding works of refractories. CONSTITUTION: A tundish cover(100) comprises a cover shell(110) and refractories(120). The cover shell is placed on the top of a tundish to improve the air-tightness of the tundish filled with molten steel and has preheating holes(111). The refractories are formed inside the cover shell except the preheating holes. Partition walls(130) are installed around the preheating holes to dismantle the damaged refractories. Multiple reinforcing ribs are formed on the outer surfaces of the partition walls to reinforce the partition walls.
Patent KR-20120020739-A (KR)
Title: Pillar foundation structure having expanded upper part of street facility and construction method thereof
Inventor: LEE JONG KU
IPC: E02D27/42
Filed: 2010-08-31
Abstract: PURPOSE: A pillar foundation structure with an expanded head part for a street facility and a construction method thereof are provided to reduce ground excavation and enable rapid construction by fixing a pillar foundation to the ground using a pile driving technique. CONSTITUTION: A pillar foundation structure(100) with an expanded head part for a street facility comprises a pillar foundation(110), an expanded heat part(130), and a resisting unit(150). The pillar foundation is driven into the ground by a pile driving facility and is connected to the lower end of a pillar to support the pillar. The expanded head part is fixed to the upper outer surface of the pillar foundation to expand the head part of the pillar foundation. The expanded head part resists to load transferred to the pillar foundation through the pillar. The resisting unit transfers torsion load transferred from the pillar to the ground by wind applied to a structure like a road sign.
Patent KR-20110043433-A (KR)
Title: Charged-particle beam writing method and charged-particle beam writing apparatus system
Inventor: TSURUTA KAORU
IPC: G03F7/20
Filed: 2010-09-01
Abstract: PURPOSE: A charged-particle beam lithography method and a charged-particle beam lithography system are provided to prevent the scattering of a resist layer by reducing an amount of electron beams which are accurately not irradiated on a substrate. CONSTITUTION: A first charged-particle electron beam lithography device scans the charged-particle beam on a correction substrate with a two-layered film with different reflexibility and obtains the error(202) of an irradiation location by detecting a reflective signal from the correction substrate. A second charged-particle electron beam lithography device obtains the error(204) of the irradiation location. The difference(206) of the errors of the irradiation locations between the first and second charged-particle electron beam lithography device is obtained. The error of the irradiation location of the charged-particle electron beam is corrected in the second charged-particle beam lithography device by using the difference.
Patent KR-20120025739-A (KR)
Title: 조립식 스마트 칩을 구비한 신용카드
Inventor: PARK CHANG WOO
IPC: B42D25/30
Filed: 2010-09-08
Abstract: 본 발명은 신용카드에 구비되는 스마트 칩을 자유롭게 탈부착할 수 있는 조립식 스마트 칩을 구비한 신용카드에 관한 것으로, 특히 스마트 칩을 여러 장의 신용카드에 각각 부착하여 사용할 수 있도록 함으로써, 대금결제의 통일화를 가져오고, 사용하지 않는 신용카드는 그 스마트 칩 분리를 통해 금융사고를 방지할 수 있는 조립식 스마트 칩을 구비한 신용카드에 관한 것이다. 
이를 위해, 본 발명에 따른 본 발명에 따른 조립식 스마트 칩을 구비한 신용카드는 일측부에 스마트 칩(smart chip)이 삽입되는 공간부가 형성되어 있는 카드(card)와, 상기 공간부에 삽입되어 상기 카드에 결합되며, 신용카드 사용자의 정보가 저장되어 있는 스마트 칩 및 상기 카드에 결합된 스마트 칩을 고정시키는 고정수단을 포함하는 것을 특징으로 한다.
Patent KR-20120033464-A (KR)
Inventor: KIM YOON KYUNG
IPC: G06Q30/00
Filed: 2010-09-30
Abstract: 본 발명은 사용자가 평상 시에 스마트폰의 장바구니 어플리케이션을 통해 주말에 살 물건들을 등록해 두고, 주말에 대형 할인 마트에 방문하기 하루나 이틀 전에 장바구니 목록을 서버에 전송하여 확정하면, 사용자의 할인마트 방문 시 서버가 근처에 있는 타 고객의 장바구니 목록과 함께 자동으로 집계하여 공동구매를 발의하되, 공동 구매자 집단과 판매자 사이에 조건의 달성 정도에 따른 조건부 할인 약정을 하고 그 약정을 예약한 공동구매에서 그 조건 충족 진행 상황을 관련자들에게 주기적으로 보고하도록 함으로써 공동구매에서의 기대 할인 수준과 필요 시 각 공동구매자들이 자신의 지인들에 대해 자발적으로 참여를 독려하여 공동구매의 조건 충족이 보다 용이하도록 된, 조건부 할인 공동구매 발의 시스템 및 방법에 관한 것이다. 
본 발명에 따른 조건부 할인 공동구매 발의 시스템은, 판매자와 조건의 달성 정도에 따른 차등적 할인 약정을 예약한 공동 구매자 집단에 가입된 상태에서, 장바구니 어플리케이션을 실행하여 공동구매 할 물품을 장바구니에 등록하고, 상기 장바구니에 물품들이 최종적으로 등록된 최종 장바구니 목록을 통신망을 통해 판매관리장치에 전송하여 확인하면, 상기 판매관리장치로부터 상기 조건 충족 진행 상황을 주기적으로 보고받는 회원 단말기; 및 상기 회원 단말기로부터 상기 최종 장바구니 목록을 수신하면, 다른 회원 단말기로부터 수신된 다른 최종 장바구니 목록과 함께 집계하여, 상기 조건의 충족 진행 상황을 회원 단말기들에 주기적으로 보고하고, 상기 공동구매 할 물품에 대해 상기 조건의 충족 시 공동구매를 인정하고 차등적 할인에 따른 공동구매용 할인쿠폰을 상기 회원 단말기들에 전송해 공동구매를 자동으로 발의하는 판매관리장치를 포함한다.
Patent KR-20120060978-A (KR)
Title: Method and Apparatus for 3D Human-Computer Interaction based on Eye Tracking
Inventor: LEE EUI CHUL
IPC: G06T7/00
Filed: 2010-09-30
Abstract: PURPOSE: A three-dimensional human-computer interaction apparatus and a method thereof are provided to perform navigation in a three-dimensional space using two bio-information measurements. CONSTITUTION: A 3D monitor(21) is gazed upon by a user. The 3D monitor has a screen with a two-dimensional plane direction. One or more cameras(22,40) take a photograph of a user. Sensing elements obtain bio-information measurements. A signal processing unit processes a signal from the camera and the sensing elements.
Patent KR-20120040842-A (KR)
Title: Ｌｅｄ 택시 표시등
Inventor: YANG HEE SIK
IPC: B60Q1/50
Filed: 2010-10-20
Abstract: 본 발명은 LED 택시 표시등을 개시한 것으로, 이러한 본 발명은 택시 표시등에 LED광원을 적용시 LED 광원의 외부 확산효율을 높여 표시등에 대한 시인성을 좋게 하는 한편, 표시등을 택시 등의 문구가 새겨지는 식별덮개와 이를 보호하면서 광고 등의 문구가 전후방측으로 새겨지는 보호덮개로 분할 구성한 것이며, 이에따라 부품 교체가 용이하게 이루어지도록 함은 물론, 광고 문구 등의 교체에 있어서도 덮개 모두를 교체해야 하는 문제를 개선하도록 한 것이다.