baber/WOPTO huggingface dataset:
Patent KR-20160138617-A (KR)
Title: Smart self repair device and method
Inventor: SHIM YOUNG BO
IPC: G11C29/44
Filed: 2015-05-26
Abstract: The present invention relates to a smart self-repair device and a smart self-repair method, and more particularly, to a technique capable of enhancing repair efficiency in a package repair operation. According to the present invention, the device comprises: an array rupture electrical fuse (ARE) array to store each bit information for a fail address in a fuse; a self-repair control unit storing a row and a column address corresponding to the fail bit when a fail occurs, comparing a fail address inputted in a test with a previously stored address to analyze a fail mode, and outputting fail address information, and row or column fuse set information by corresponding to the fail mode; a data control unit to output repair information to the ARE array by corresponding to the fail address information, and the row or column fuse set information; and a rupture control unit to control a rupture operation of the ARE array.
Patent KR-20160139663-A (KR)
Title: Display module and display device having the same
Inventor: KIM JAE SANG
IPC: G09F9/33
Filed: 2015-05-28
Abstract: Disclosed are a display module and a display device having the same. The disclosed display module includes: a circuit board; a plurality of light emitting device packages which are arranged on the circuit board and are electrically connected to the circuit board; and a coating unit which is coated by spraying a coating solution including a light diffusing agent on the circuit board on which the light emitting device package is arranged, to include the light emitting device package. The coating unit includes at least one first light diffusing part formed on a part where the light emitting device package is located. Accordingly, the present invention can reduce a moire phenomenon.
Patent KR-20160141492-A (KR)
Inventor: KIM KYUNG HAE
IPC: H01L33/32
Filed: 2015-06-01
Abstract: 본 발명은 발광 다이오드 제조 방법에 관한 것으로, 본 발명의 일 실시예에 따른 발광 다이오드 제조 방법은, 성장 챔버 내에 기판이 배치되는 단계; 상기 기판 상에 n형 질화물 반도체층이 형성되는 단계; 상기 n형 질화물 반도체층 상에 활성층이 형성되는 단계; 및 상기 활성층 상에 p형 질화물 반도체층이 형성되는 단계를 포함하고, 상기 n형 질화물 반도체층을 형성하는 단계는, 상기 기판 상에 하부 n형 질화물층이 형성되는 단계; 상기 하부 n형 질화물층 상에 제2 중간층이 형성되는 단계; 상기 제1 중간층 상에 n형 도펀트가 변조 도핑된 층이 포함된 n형 쇼크도핑층이 형성되는 단계; 상기 n형 쇼크도핑층 상에 삽입층이 형성되는 단계; 및 상기 삽입층 상에 제2 중간층이 형성되는 단계를 포함하며, 상기 제2 중간층은 제1 서브 중간층 및 제1 서브 중간층보다 작은 밴드 갭 에너지를 갖는 제2 서브 중간층이 반복되어 적층된 초격자층을 포함하고, 상기 제2 중간층에서 발생된 전기장 내에 상기 n형 쇼크도핑층이 위치하도록 상기 삽입층에 의해 상기 n형 쇼크도핑층과 제2 중간층이 이격될 수 있다. 본 발명에 의하면, 사파이어 반도체 상에 질화물 반도체층이 성장하면서, 부정합에 의해 발생되는 결함의 차단을 위해 중간층에 의해 삽입층 하단에 밴드 밴딩에 의해 발생하는 전자구름 내부에 전자 밀도를 높여 발광 다이오드의 동작 전압을 낮출 수 있는 효과가 있다.
Patent KR-20160141979-A (KR)
Title: 인버터 보호 장치
Inventor: KIM JONG CHAN
IPC: H02H7/122
Filed: 2015-06-02
Abstract: 인버터 보호 장치가 개시된다. 본 발명에 따른 인버터 보호 장치는, 인버터의 출력 전류를 검출하는 전류 검출부; 상기 전류 검출부로부터 검출된 출력 전류를 모니터링하는 전류모니터링부; 상기 출력 전류가 과전류 기준 전류값 이상인지를 판단하는 과전류 판단부; 및 상기 과전류 판단부의 출력신호를 인가받아, 필터링하여 출력하는 노이즈 보상부를 포함한다.
Patent KR-20160143217-A (KR)
Inventor: KO JIN HYUN
IPC: F21Y103/00
Filed: 2015-06-05
Abstract: According to an embodiment of the present invention, a light adaptor for tracking a position includes: a first connection unit connected to a conducting wire or a terminal which is connected to external power; a second connection unit connected to a light so as to supply the external power to the light; and a position tracking circuit prepared in the first connection unit or the second connection unit and receiving the external power to transmit a position tracking signal to the position tracking unit.
Patent KR-20160109992-A (KR)
Inventor: GOLAS ABHINAV
IPC: G06T1/20
Filed: 2015-06-15
Abstract: In a pipelined application having different stages of processing, such as a graphics application or an image processing application, there may be a dependence of one compute kernel upon another. Data associated with individual kernels needs to be written and read. A technique to minimize a need to read and write kernel data to an external memory utilize at least one of fusing kernels, resizing workgroups, and performing interleaving of kernels.
Patent KR-20160049954-A (KR)
Inventor: MATSUMOTO KAZHUHIRO
IPC: G06T7/00
Filed: 2015-06-16
Abstract: Provided are an apparatus, a method and a program for image processing which prevent a halo effect. The apparatus for image processing includes an obtaining unit, an interpreting unit and a smoothing process unit. The obtaining unit obtains video data. The interpreting unit calculates an edge strength on the basis of a stairs tone strength indicating discrepancy between a first parameter and a second parameter, wherein the first parameter indicates a first gradient based on each pixel value of adjacent pixels with respect to a pixel of interest, and the second parameter is based on one among a variance based on each pixel value of the pixel of interest and the adjacent pixels and a second gradient based on each pixel value of adjacent pixels included in a second range. The smoothing process unit performs a nonlinear smoothing operation on each pixel value of the adjacent pixels included in a first range on the basis of the calculated edge strength.
Patent KR-20170001053-A (KR)
Title: Touch window
Inventor: KIM SEUNG JIN
IPC: G06F3/041
Filed: 2015-06-25
Abstract: A touch window according to an embodiment of the present invention comprises: a substrate; a sensing electrode arranged on the substrate; and a wired electrode connecting to the sensing electrode. The wired electrode comprises a first pitch in a direction which the wired electrode extends toward and a plurality of sub-wired electrodes which is spaced apart towards a second pitch in the opposite direction to the first pitch, wherein the first pitch is bigger than the second pitch. Therefore, the present invention provides a touch window having improved transmittance.
Patent KR-20170001108-A (KR)
Inventor: KIM BYEONG JAE
IPC: G06F3/044
Filed: 2015-06-25
Abstract: An electronic apparatus having a touching sensing module according to an embodiment of the present invention comprises: a touching sensing module; a non-volatile memory storing gesture information defined gesture types depending on signal values which are output from the touch sensing module in order to decide the gesture types that a user inputs to the touch sensing module; and a host control part transmitting the gesture information stored in the non-volatile memory to a volatile memory of the touch sensing module when the touch sensing module is reset.
Patent KR-20170001444-A (KR)
Inventor: KIM KYUNG SOOK
IPC: C09D11/00
Filed: 2015-06-26
Abstract: The present invention relates to a bio-ink composition for 3D printers, a method of preparing the same, and a biological material using the same. The bio-ink composition for 3D printers is a two solution type bio-ink composition for 3D printers comprising a first solution (A) and a second solution (B), wherein (i) the first solution (A) contains a biological polymer having a first chemical functional group, and the second solution (B) contains a second biological polymer having a second chemical functional group; or (ii) the first solution (A) contains a first biological polymer having a first electrostatic functional group, and the second solution (B) contains a second biological polymer having a second electrostatic functional group. More specifically, the first chemical functional group and the second chemical functional group bond to each other through a chemical reaction, and the first electrostatic functional group and the second electrostatic functional group bond to each other physically through electrostatic attraction.
Patent KR-20170019006-A (KR)
Inventor: LEE KEONG JIN
IPC: G02B30/25
Filed: 2015-08-10
Abstract: The present invention relates to a polarization switching touch screen panel and a switchable lens touch screen panel which are applicable to a stereoscopic image device, and a 2D/3D image display device having the same, in which a touch position is able to be accurately recognized without being disturbed by elements included in a display panel. The polarization switching touch screen panel includes: a first substrate and a second substrate facing each other; a first electrode and a second electrode respectively disposed on the first and second substrates; and a liquid crystal layer disposed between the first and second electrodes. The second electrode faces the first electrode on the second substrate which is opposite to the first substrate, and the liquid crystal layer is disposed between the first electrode and the second electrode. The liquid crystal layer is controlled according to voltages respectively supplied to the first electrode and the second electrode to selectively convert an optical axis of light. One of the first electrode and the second electrode is formed as one integrated electrode, and the other electrode includes a plurality of electrodes divided in a first direction and a second direction intersecting with each other.
Patent KR-20170020666-A (KR)
Title: Avm 시스템 및 사각지대 영상 합성 방법
Inventor: LEE JAE MIN
IPC: B60W50/14
Filed: 2015-08-13
Abstract: AVM 시스템 및 사각지대 영상 합성 방법이 개시된다. AVM 시스템은, 차량에 구비된 복수의 카메라로부터 실시간 각각 입력되는 영상 신호를 각각의 카메라 영상 데이터로 저장부에 저장하는 영상 입력부; 각각의 카메라 영상 데이터를 이용하여 검은색 마스킹 영역이 포함된 AVM 영상 데이터를 생성하는 AVM 영상 생성부; 상기 차량의 주행 속도 및 움직임 방향을 인식하고, 상기 검은색 마스킹 영역에 상응하는 복수의 대상 픽셀 각각이 복수의 참조 영역들 각각에 포함된 하나 이상의 참조 픽셀의 픽셀 정보에 미리 지정된 가중치값을 적용하여 합산된 픽셀 정보를 가지도록 구성된 가상 이미지 데이터를 생성하는 가상 이미지 생성부; 및 상기 AVM 영상 데이터에 포함된 상기 검은색 마스킹 영역을 상기 가상 이미지 데이터로 대체시켜 디스플레이부를 통해 출력하는 영상 합성부를 포함한다.
Patent KR-20170021545-A (KR)
Title: 광고용 노면시트
Inventor: KIM BO HYUN
IPC: G09F19/22
Filed: 2015-08-18
Abstract: 광고용 노면시트에 관한 것으로, 일 실시예에 따른 광고용 노면시트는, 섬유재 성분의 물질로 형성되는 기재층과, 상기 기재층의 하부에 노면에 점착되는 점착성분의 물질이 도포되어 형성되는 점착층과, 상기 기재층의 상부에 접착성분의 물질이 도포되어 형성되는 접착층과, 상기 접착층의 상부 중 인쇄표시영역으로 기 설정된 반사율을 가지는 복수의 유리구슬이 형성되는 유리구슬층과, 상기 접착층의 상부 중 상기 인쇄표시영역으로 염료가 도포되어 인쇄되는 인쇄층을 포함한다. 
이에 따라, 열처리 없이 광고용 시트를 노면에 부착하여 광고를 표시할 수 있다.
Patent KR-20170025832-A (KR)
Title: Motor driving apparatus and home appliance including the same
Inventor: PARK CHEON SU
IPC: H02P29/00
Filed: 2015-08-31
Abstract: The present invention relates to a motor driving apparatus and a home appliance having the same. The motor driving apparatus according to an embodiment of the present invention includes a temperature sensing part for sensing a temperature around a compressor, an inverter which has a plurality of switching elements and converts DC power into AC power by the switching of the switching element and supplies the AC power to a motor for driving the compressor, and a control part for controlling the inverter. The control part applies a motor preheating current for preheating the motor during a first period before starting the motor, and varies the application time or the applying level of the motor preheating current according to a sensed temperature. Thus, it is possible to reduce power consumption when the compressor is preheated.
Patent KR-20170027906-A (KR)
Title: Led driving apparatus and light apparatus including the same
Inventor: KIM HYUN JUNG
IPC: F21S2/00
Filed: 2015-09-02
Abstract: The present invention relates to an LED driving apparatus, which can simplify a control module for a light emitting diode, and a lighting apparatus including the same. The LED driving apparatus according to an embodiment of the present invention comprises: a power supply circuit supplying driving power to a plurality of LED groups emitting lights having different color temperatures; an electric current control circuit controlling size of an electric current flowing in each of the plurality of LED groups; and a controller IC controlling an on/off operation of an LED included in each of the plurality of LED groups. The controller IC can control at least one on/off operation of an LED included in each of the plurality of LED groups, and an on/off operation of an LED included in the other LED groups.
Patent KR-20160081772-A (KR)
Inventor: HWANG DO WON
IPC: G01N33/50
Filed: 2015-09-07
Abstract: 본원은 인비보, 인비트로 또는 엑스비보 영상 촬영이 가능한 하나 이상의 리포터 유전자 및 하나 이상의 목적하는 표적 마이크로RNA의 표적서열 및 상기 유전자와 작동가능하게 연결된 프로모터를 포함하는 생체네 마이크로RNA 발현 분석용 벡터 및 이로 형질전환된 동물모델을 개시한다. 본원에 따른 벡터 및 동물모델은 마이크로RNA의 변화를 인비보 상태에서 영상화가 가능하며, 발생과정 동안 특정 마이크로RNA 발현 변화를 한 개체에서 시간별로 추적이 가능하며, 또한 특정질환 모델에서 마이크로RNA의 발현 여부를 영상으로 관찰함으로써 질환 진단 및 질병특이적 마이크로RNA를 표적으로 한 안티센스 마이크로RNA의 치료 효능 평가, 마이크로RNA의 기능 연구 및 마이크로RNA를 이용한 약물 개발, 마이크로RNA 전달 기술 개발 분야에 폭넓게 응용될 수 있다.
Patent KR-20170030209-A (KR)
Title: 구강 항균 효과를 갖는 치약 조성물
Inventor: KIM RAN
IPC: A61K8/97
Filed: 2015-09-09
Abstract: 본 발명은 천연물 추출물을 포함하여 안전하고, 우수한 항균 효과를 나타내면서도 기호도가 높은 치약 조성물에 관한 것으로서, 스피아민트추출물, 파인추출물, 레몬그라스추출물, 산초추출물 및 이들 중 2이상의 혼합물로 이루어지는 군으로부터 선택되는 허브추출물 6 내지 20중량%; 계면활성제 15 내지 20중량%; 연마제 15 내지 20중량%; 점도조절제 0.5 내지 1.5중량%; 세정제 15 내지 20중량%; 보존제, 방향제, 발색제, 감미제, 항산화제 및 항균제로 이루어지는 군으로부터 선택되는 1종 이상의 첨가제 1 내지 5중량%; 및 잔량으로서 습윤제;를 포함함을 특징으로 한다.
Patent KR-20170036353-A (KR)
Inventor: LEE SEUNG GEOL
IPC: A61F13/15
Filed: 2015-09-24
Abstract: 본 발명은, 폴리아크릴산나트륨 및 다가알코올의 혼합하여 폴리아크릴산나트륨 에멀젼을 제조하는 단계; 상기 폴리아크릴산나트륨 에멀젼과 수분산 폴리우레탄을 혼합하는 단계를 포함하는, 흡수성 조성물 제조 방법에 관한 것이다.
Patent KR-20160037787-A (KR)
Title: Ceramic substrate
Inventor: FUKUI RYOUTA
IPC: H01L23/08
Filed: 2015-09-24
Abstract: (Problem to be solved) The present invention avoids expansion of the size of a device due to a complex material layer while preventing a metalizing layer from being delaminated form the body of a substrate by the complex material layer. (Solution) The present invention provides a ceramic substrate including: a plate-shaped substrate body made of an insulating ceramic material; and the metalizing layer mainly made of a conductive material and formed over an entire circumference of a surface of the substrate body along an outer periphery of the surface of the substrate body. The ceramic substrate includes: the complex material layer containing a ceramic material of the same kind as the material of the substrate body and a conductive material of the same kind as the material of the metalizing layer, formed along an outer periphery of the substrate, and interposed between the substrate body and the metalizing layer; and an electrode pad mainly made of a conductive material and formed on a surface of the inside of the metalizing layer and the complex material layer to be spaced apart from the metalizing layer and the complex material layer.
Patent KR-20170037071-A (KR)
Title: 점착제 조성물
Inventor: PARK YONG SU
IPC: C09J4/00
Filed: 2015-09-25
Abstract: 본 출원은 외부로부터　유기전자장치로 유입되는 수분 또는 산소를 효과적으로 차단할 수 있고, 고온 고습 등 가혹 조건에서의 내구 신뢰성뿐만 아니라, 우수한 광특성을 구현할 수 있는　점착제　조성물　및 이를 포함하는 점착 필름을 제공한다.
Patent KR-20170040403-A (KR)
Title: Turbocharger of vehicle
Inventor: CHU DONG HO
IPC: F02B39/16
Filed: 2015-10-02
Abstract: The present invention relates to a turbocharger of a vehicle. The turbocharger of a vehicle comprises: a housing having an internal compressor; an intake nipple provided to the housing and provided to enable an intake hose of a vehicle engine to be connected to the same; and an insulation sleeve provided to surround the outer circumferential surface of the intake nipple and blocking thermal transmission between the intake nipple and the intake hose to prevent thermal damage to the intake hose.
Patent KR-20170043038-A (KR)
Title: 조직제어에 의한 평면이방성 저감 금속 판재 제조방법 및 이에 의한 금속 판재
Inventor: YOON DEOG JAE
IPC: B21C29/00
Filed: 2015-10-12
Abstract: 본 발명의 일실시 예는 극미세화되고 평면이방성이 감소된 미세조직을 구비하여 기계적 특성과 가공성이 우수한 금속 판재 제조방법 및 이에 의한 금속 판재를 제공한다. 본 발명의 실시 예에 따른 조직제어에 의한 평면이방성 저감 금속 판재 제조방법은 (ⅰ) 금속재료 및 다이를 준비하는 단계, (ⅱ) 금속재료가 다이를 통과하도록 하여 등통로각압축공정(Equal Channel Angular Pressing, ECAP)을 수행하는 단계, (ⅲ) 상기의 (ⅱ)단계를 반복 수행하여 압축금속재료를 획득하는 단계 및 (ⅳ) 압축금속재료를 압출하여 금속판재를 획득하는 단계를 포함한다.
Patent KR-20170045822-A (KR)
Title: 미용용 마스크 팩
Inventor: KO KUNG CHAN
IPC: A61K8/19
Filed: 2015-10-20
Abstract: 본 발명은 얼굴 마사지에 사용하는 피부미용 활성제를 포함하는 미용용 마스크 팩에 있어서, 상기 마스크 팩은 피부접촉층, 표면층으로 구성되고, 상기 피부접촉층은 공정수분율이 4.5%이상인 섬유 또는 극세사를 포함하여 형성되고, 상기 표면층은 폴리에스테르 섬유 또는 폴리프로필렌 섬유로 형성되어 피부접촉층의 피부미용 활성제가 표면층으로 전이되는 것을 방지하는 미용용 마스크 팩에 관한 것이다.
Patent KR-20160049479-A (KR)
Inventor: KIM KYOUNG JUN
IPC: G06Q50/30
Filed: 2015-10-23
Abstract: Provided is a computer-implemented method. The computer-implemented method comprises the steps of: receiving a request from a user of a social networking system to select a first post; receiving a first region from the user; preparing a first group of content items including multiple first content items posted for a time period of the first region including the first post; identifying a second post of the social networking system according to a predetermined criterion; identifying a second group of content items including multiple second content items posed for a time period of the first region including the second post; and displaying at least either one of the first group and the second group on a display device, in which the content items of the first group and the content items of the second group are rearranged according to relative time differences from a posting date of the first post. The present invention enables users of a social networking system to group content items and to collectively communicate the content items in the unit of a group with other users. That is, according to a user′s request, content items can be grouped and displayed in the unit of a group of content items.
Patent KR-20170023694-A (KR)
Title: Improved food topping
Inventor: PIATKO MICHAEL
IPC: A23D9/00
Filed: 2015-10-28
Abstract: The present invention relates to an edible topping composition which exists in a fluid state under a room temperature and a refrigeration temperature, and contains non-hydrogenized oil/hydrogenized oil, dairy products, a sweetener, and a bulking agent. The edible topping composition can be whipped up, and the whipped edible topping composition has soft and non-greasy textures without sliminess.
Patent KR-20170051591-A (KR)
Title: Telematics service quality inspection system
Inventor: SONG HEE SEUNG
IPC: H04L12/26
Filed: 2015-10-29
Abstract: The present invention relates to a telematics service quality inspection system comprising: at least one vehicle equipped with a telematics device for using a telematics service; a telematics server which is connected to the vehicle through a mobile communication network and provides at least one service of safe operation, smart control, vehicle management, audio control, navigation update and vehicle operation information of the vehicle; and a test server which is connected to the telematics server, generates a test message and provides the test message to the telematics server, collects a service result corresponding to the test message, and evaluates the quality of a service performed in the telematics server with respect to the service result in comparison with a predetermined service evaluation index. As a result, the telematics service quality inspection system is able to perform a quality evaluation on a communication environment for using a telematics service of a vehicle and to provide a system capable of automatically evaluating the quality of a service tested according to a registered quality standard.
Patent KR-20170050435-A (KR)
Title: Heater for electronic thermostat and method for manufacturing the same
Inventor: JUNG JIN WOO
IPC: H05B3/06
Filed: 2015-10-30
Abstract: The present invention relates to a heater for an electric thermostat and a method for manufacturing the same. The heater for the electric thermostat is heated depending on power supply; and controls opening and closing displacement. The heater for the electric thermostat is installed in a housing that forms a channel of coolant controlled by movement of a cylinder case, and defines an assembly space where the heater is assembled towards the inside from the outside. The heater for the electric thermostat comprises: a pair of lead wires; a heating element; a heating tube; a connector; a fixture; and a cover unit. The heating element is connected between the pair of lead wires. One end of the heating tube is closed. The other end of the heating tube is opened. An end part of the pair of the lead wires projects to the outside by inserting the heating element towards the closed one end from the opened other end. The heating tube is heated depending on heat of the heating element. The connector is connected to the pair of lead wires; and applies different polarity power. An upper part of the heating tube is inserted into a lower inner surface of the fixture. A lower outer surface of the fixture is inserted into a lower part of the assembly space. A lower inner surface of the cover unit is combined with an upper outer surface of the fixture. An upper inner surface of the cover unit surrounds a connection part of the pair of lead wires and the connector by enabling the outer surface of the cover unit to be inserted into the middle top of the assembly space.
Patent KR-20170051844-A (KR)
Title: Apparatus for transferring substrate
Inventor: CHOI HYUN SUN
IPC: H01L21/67
Filed: 2015-11-02
Abstract: The present invention provides a substrate transfer device. The substrate transfer device comprises: a filter unit disposed inside a chamber to allow external air to be introduced to the inside; and an addition unit having a moisture removal unit and a purge gas providing unit which are sequentially arranged on the filter unit. Each filter unit and each addition unit are fastened.
Patent KR-20170051039-A (KR)
Title: Semiconductor device and driving method the same
Inventor: PARK MIN SU
IPC: G11C29/42
Filed: 2015-11-02
Abstract: The present invention relates to a semiconductor apparatus and a driving method thereof, and a technology on a semiconductor apparatus comprising an error correction code (ECC) circuit. According to the present invention, the semiconductor apparatus comprises: a plurality of normal mats which comprise a plurality of memory cells, and are connected to a data line; a plurality of dummy mats which are placed in a specific area of the plurality of normal mats, and into and from which a parity bit is inputted and outputted through a specific unit of parity line; a plurality of free ECC calculators which performs an ECC calculation by corresponding to the data applied through the data line and the parity line; and a main ECC calculator which combines the data applied from the plurality of free ECC calculators, and performs an ECC calculation. The present invention aims to provide a semiconductor apparatus and a driving method thereof, in which a dummy mat can be used as an ECC circuit.
Patent KR-20160056278-A (KR)
Inventor: SEKI JUNICHI
IPC: H01L21/027
Filed: 2015-11-03
Abstract: Provided is an imprint method for molding an unhardened resin spread to a substrate by a pattern part formed on a mold, hardening the unhardened resin, and forming the hardened resin pattern on the substrate. The imprint method includes a step of separating the pattern part from the resin to allow two opposite boundary parts to approach each other while an equilibrium state for processing delamination is maintained based on a fact that a boundary part where the pattern part after the resin hardening process is delaminated from the resin, is a straight line. So, the generation of defects can be prevented.
Patent KR-20170056088-A (KR)
Title: 산화아연 나노구조물을 이용한 금속촉매전극의 제조방법
Inventor: LEE JONG LAM
IPC: H01B13/00
Filed: 2015-11-12
Abstract: 본 발명은 금속촉매전극의 제조방법에 관한 것이다. 본 발명의 일 실시예에 따르면, (a) 기판 상에 산화아연 박막을 형성하는 단계; (b) 상기 산화아연 박막에 수열합성법으로 산화아연 구조물을 만드는 단계; (c) 상기 산화아연 구조물이 형성된 산화아연 박막 상에 금속층을 형성하는 단계; 및 (d) 상기 산화아연 박막과 상기 산화아연 나노구조물을 제거하여 금속촉매전극을 형성하는 단계를 포함할 수 있다.