baber/WOPTO huggingface dataset:
Patent KR-20170123643-A (KR)
Title: 중간 광학 필터를 구비한 기계적 적층형 탠덤 광전지
Inventor: FORREST STEPHEN R
IPC: H01L31/0352
Filed: 2016-02-29
Abstract: 다중 접합 감광 디바이스 제조 방법이 제공된다.  이 방법은 적어도 하나의 광활성 층이 투명 기판 위에서 제조되고 적어도 하나의 광활성 층이 반사성 기판 위에서 제조되도록 적어도 2개의 광활성 층을 제조하는 단계와, 투명 기판상에 제조된 적어도 하나의 광활성 층 위에서 적어도 하나의 광학 필터 층을 패터닝하는 단계와, 상기 적어도 2개의 광활성 층을 냉간 용접 또는 반데르발스 결합을 이용하여 결합하는 단계를 포함한다.  다중 접합 감광 디바이스가 또한 제공된다.  이 디바이스는 적어도 2개의 광활성 층과 적어도 하나의 광학 필터 층을 포함하고, 적어도 2개의 층은 냉간 용접 또는 반데르발스 결합을 이용하여 결합된다.  상기 광학 필터 층은 분산형 브래그 반사기일 수 있다.
Patent KR-20170116223-A (KR)
Title: 수직 정렬 피처들을 포함하는 광 방출기 및 광 검출기 모듈들
Inventor: RIEL PETER
IPC: H01L33/10
Filed: 2015-07-22
Abstract: 본 개시내용은 광 방출기 또는 광 검출기 등의 광전자 디바이스를 위한 매우 정밀하고 안정적인 패키징을 제공할 수 있는 다양한 모듈을 설명한다.  모듈들은, 필요에 따라, 광전자 디바이스와 광전자 디바이스 위에 배치된 광학 소자 또는 광학 어셈블리 사이에 정밀한 거리를 확립하기 위해, 모듈들의 제조 동안, 기계가공(machine)될 수 있는 수직 정렬 피처들을 포함한다.
Patent KR-20170116253-A (KR)
Title: 적응적 트리 선택을 사용한 이진 집합의 비디오 인코딩 및 디코딩을 위한 방법 및 장치
Inventor: SOLE JOEL
IPC: H04N19/159
Filed: 2010-06-23
Abstract: 적응적 트리 선택을 사용하여 이진 집합을 인코딩 및 디코딩하기 위한 방법 및 장치가 제공된다.  하나의 예시 인코딩 방법 실시예에서, 화상 데이터가 화상 내의 블록에 대해 인코딩되는데, 상기 블록에 대한 계수 유의성을 표시하기 위한 데이터의 이진 집합을 코딩하도록 복수의 트리 구조 중 하나가 선택된다(525).  다른 예시 인코딩 방법 실시예에서, 화상 데이터가 화상 내의 블록에 대해 인코딩되는데, 하나 이상의 트리가 상기 블록에 대한 계수 유의성을 표시하기 위한 데이터의 이진 집합을 인코딩하는 데 사용되고, 상기 하나 이상의 트리 각각은 복수의 노드를 가지며, 상기 하나 이상의 트리의 노드들 중 적어도 하나는 적어도 하나의 파라미터에 응답하여 수정된다(920, 925, 930).
Patent KR-20170134539-A (KR)
Title: 스위치 캐비닛 냉각 장치의 조절 방법
Inventor: ROSENTHAL DANIEL
IPC: H05K7/20
Filed: 2016-03-22
Abstract: 본 발명은 냉각 기계 및 히트 파이프 장치(arrangement)를 구비한, 스위치 캐비닛 냉각 장치(switch cabinet cooling device)의 조절방법(regulation method)에 관한 것으로서, 그 조절 방법은,  
현재의 스위치 캐비닛 내부 온도를 측정하고, 스위치 캐비닛 내부 온도에 대한 목표 온도를 결정하는 단계(여기서, 상기 스위치 캐비닛 내부 온도 및 목표 온도가 스위치 캐비닛 냉각 장치를 작동시키기 위한 레귤레이터의 입력 신호를 이루고, 그리고 상기 레귤레이터가 냉각 기계의 조작 변수를 결정하기 위한 제어신호를 출력함); 
레귤레이터 제어 신호를, 당해 현재 필요 냉각력(respective current required cooling power)에 비례하는, 측정 변수(measured variable)로 결정하는 단계; 
스위치 캐비닛의 외기 온도를 측정하고, 필요한 냉각력이 냉각 기계에 의해 제공되거나 또는 필요한 냉각력이 히트 파이프 장치에 의해 제공되는 모든 경우에, 냉각 기계 및 히트 파이프 장치에 대한 각각의 에너지 효율을 결정하는 단계; 및 
필요한 냉각력을 보다 큰 에너지 효율로써 제공할 수 있는 것으로 두 냉각액 회로중의 하나를 선택하여 동작시키는 단계;를 포함하여 구성된다.
Patent KR-20180019093-A (KR)
Title: 롱 텀 에볼루션 호환 초협대역 설계
Inventor: WEI YONGBIN
IPC: H04L5/00
Filed: 2016-06-16
Abstract: 본 발명의 양상들은 사용자 장비(UE)에 의한 무선 통신들에 관한 것으로, 이는 협대역 영역에서 자원들을 식별하는 것 ― 협대역 영역은 송신 시간 간격(TTI)에서 단지 단일 자원 블록에 걸쳐 있음 ―, 그리고 식별된 자원들을 사용하여 기지국과 통신하는 것을 포함한다.
Patent KR-20180001593-A (KR)
Title: 검색 결과들에 대한 멀티포인트 핀치 제스처 제어
Inventor: YUAN HAN SHEN
IPC: G06F3/01
Filed: 2012-08-01
Abstract: 장치는 정보 및 상거래 리스트를 온라인 검색한 결과들의 디스플레이를 제어하기 위해 터치 스크린과의 사용자 상호동작을 허용하도록 구성된 터치 기능 스크린을 포함한다.  멀티포인트 핀치 제스처들을 통한 장치의 터치 스크린과 사용자의 상호동작이 많은 양의 검색 결과들에 걸친 탐색을 용이하게 한다.  주어진 검색 결과들을 정교화하거나 축소하기 위해 핀치 제스처들을 이용한 터치 기능 탐색은 그 결과들에 대한 보다 확정적인 보기를 제공하거나 사용자에 의한 추가 검색 요건의 보다 나은 지시를 제공할 수 있다.  정교화되거나 축소된 세부내용을 가진 항목 데이터의 리스트는 관련된 멀티포인트 핀치 제스처들을 통해 제어되는 대응하는 스케일링 프로세스를 통해 생성된다.
Patent KR-20180033139-A (KR)
Title: 차체 모션 및 승객 경험을 제어하기 위한 방법 및 시스템
Inventor: GRAVES WILLIAM
IPC: B60N2/02
Filed: 2016-06-03
Abstract: 일 실시예에서, 차량의 하나 이상의 서스펜션 시스템은 하나 이상의 주파수 범위에서 모션을 제한함으로써 멀미를 완화하는데 사용될 수도 있다.  다른 실시예에서, 능동 서스펜션은 자율 주행차 아키텍처와 통합될 수도 있다.  또 다른 실시예에서, 차량의 능동 서스펜션 시스템은 차량 내에 모션을 유도하는데 사용될 수도 있다.  차량은 기술적 조사를 위한 시험 베드로서 그리고/또는 차량 승객에 의한 비디오 및/또는 오디오의 향유를 향상시키기 위한 플랫폼으로서 사용될 수도 있다.  몇몇 실시예에서, 능동 서스펜션 시스템은 차량의 내부 또는 외부의 사람과의 통신의 수단으로서 제스처를 수행하는데 사용될 수도 있다.  몇몇 실시예에서, 능동 서스펜션 시스템은 특정 도로 상황에 응답하여 차량 운전자 또는 다른 사람에 햅틱 경고를 발생하는데 사용될 수도 있다.
Patent KR-20180045863-A (KR)
Title: 에폭시 수지 조성물 및 이로부터 제조된 섬유 강화 복합 재료
Inventor: LEHMAN BENJAMIN
IPC: C08G59/24
Filed: 2016-08-26
Abstract: 본 발명은, 하기 성분 [A], [B], [C] 및 [D]를 포함하는 섬유 강화 복합 재료용 에폭시 수지 조성물에 관한 것이다: 
[A] 적어도 하나의 에폭시 수지(지환족 에폭시 수지 이외의 화학식(I)로 표시되는); 
[B] 적어도 하나의 아민 경화제 
[C] 적어도 하나의 잠재성 산 촉매(latent acid catalyst) 
[D] Y가 단일 결합이거나 분자량이 45g/mol 미만인 2가의 모이어티를 나타내는, 화학식(I)로 표시되는 적어도 하나의 지환족 에폭시 수지. 
 . 
이 에폭시 수지 조성물은 섬유 강화 복합 재료의 성형에 유용하다.  보다 구체적으로는, 가열에 의해 얻어진 경화물이 높은 수준의 내열성 및 강도 특성을 갖는 섬유 강화 복합재용 에폭시 수지 조성물을 제공하는 것이 가능하다.
Patent KR-20180037925-A (KR)
Title: 기류 관리가 강화된 에어로졸 발생 시스템
Inventor: THORENS MICHEL
IPC: A24F40/46
Filed: 2016-07-25
Abstract: 본 발명은, 액체 에어로졸 형성 기재 및 모세관 매질(22)를 보유하고 개구를 갖는 하우징을 포함하는 액체 저장부, 및 공기 충돌면을 정의하도록 배열된 도전성 필라멘트의 배열(30)을 포함하는 유체 투과성 히터 조립체를 포함하는 에어로졸 발생 시스템에 관한 것으로, 여기서 유체 투과성 히터 조립체는 하우징의 개구를 가로질러 연장되고, 필라멘트 장치(30)는 기류(42)가 통과할 수 있게 하는 필라멘트 개구(32)를 정의하고, 모세관 매질(22)은 히터 조립체와 접촉하도록 제공되고, 액체 에어로졸 형성 기재는 모세관 매질(22)을 통해 도전성 필라멘트 장치(30)로 흡인되고, 모세관 매질(22)은 모세관 매질(22)를 통하여 필라멘트 개구(32)를 연장하는 모세관 매질 개구(28)를 포함한다. 본 발명은 또한 에어로졸 발생 시스템에 사용하기 위한 카트리지의 제조 방법에 관한 것이다.
Patent KR-20190083016-A (KR)
Inventor: LEE JONG NAM
IPC: H01L51/52
Filed: 2018-01-02
Abstract: According to one embodiment, a display device comprises: a display panel including a display region and a non-display region; and a polarizing layer located on the display panel, and including a main part covering at least the display region and an extension part covering a part of the non-display region. The polarizing layer includes a groove extending along a boundary of the main part and the extension part. Therefore, an objective of the present invention is to provide the display device with improved reliability.
Patent KR-20190086287-A (KR)
Title: Charging-Recharging Device for Rechargeable Battery and Equipment for Activation Process of Rechargeable Battery Comprising the Same
Inventor: PARK HYO JIN
IPC: A62C2/10
Filed: 2018-01-12
Abstract: The present invention relates to a charging/discharging device for a secondary battery and an apparatus to perform an activation process of a secondary battery comprising the same. According to the present invention, the charging/discharging device comprises: a box type main body having two openings formed in a side surface portion; and a charging/discharging terminal provided on the side surface portion of the main body. The charging/discharging device further comprises: a non-combustible blocking means configured to open and close the openings formed in the side surface portion; an air conditioning line connected to the inside of the main body and configured to individually control a temperature of each charging/discharging device; and a CO_2 supply line configured to inject carbon dioxide to the inside of the main body in case of fire. Accordingly, it is possible to uniformly control and manage an internal temperature of the charging/discharging device which performs an activation process of the secondary battery. In addition, it is possible to extinguish a fire instantly and efficiently and prevent the fire from spreading to an external side in case of fire.
Patent KR-20190090141-A (KR)
Title: Machine learning system using joint learning and the method thereof
Inventor: RO YONGMAN
IPC: G06N5/04
Filed: 2018-01-24
Abstract: The present invention relates to technique jointly learning a teacher learning module and student learning module. A method of a machine learning system using joint learning comprises the steps of: minimizing error and feature differences between the teacher learning module and student learning module branched from a shared engine extracting features of input data using a loss function; and jointly learning the teacher learning module and student learning module by the loss function.
Patent KR-20180027447-A (KR)
Inventor: HWANG SUNG YEOUN
IPC: A61P35/00
Filed: 2018-01-29
Abstract: The present invention relates to a novel usage of a Circii Radix extract. Specifically, the present invention relates to a treatment composition containing a Circii Radix extract representing an excellent prevention or treatment effect on a brain cancer as an active ingredient.
Patent KR-20190103501-A (KR)
Title: A control system for controlling a ventilation device based on internet of things and an indoor air quality improvement system including the same
Inventor: LEE JAE SUP
IPC: F24F11/58
Filed: 2018-02-01
Abstract: According to an embodiment of the present invention, disclosed are a control system controlling a ventilator and an indoor air quality improvement system including the same. The control system comprises: a server receiving indoor air quality information and ventilator operational state information which are collected via the Internet of Things from facilities, transmitting the indoor air quality information and the ventilator operational state information, and transmitting a ventilator actuation command to at least one facility; and a control center receiving the indoor air quality information and the ventilator operational state information from the server, generating the ventilator actuation command based on the indoor air quality information and the ventilator operational state information, and transmitting the ventilator actuation command to the server.
Patent KR-20190094635-A (KR)
Title: Pet bath base
Inventor: KIM CHUL HEE
IPC: A01K13/00
Filed: 2018-02-05
Abstract: A pet bath stand is disclosed. The pet bath stand according to the present invention comprises: a fixing bracket having a protrusion with a thread on a front surface thereof; and a stand body having a fastening hole formed therein and the protrusion being inserted through the fastening hole to be fastened to the fixing bracket. The stand body comprises: a side wall extending upward from an upper surface along an outer edge; a fixing groove extending from the side wall to an inner side of the upper surface; a space receiving portion having a portion of the side wall being curved inward of the upper surface from a rear end of the upper surface; and a lower drain tray extending downward from a lower surface. In addition, the pet bath stand can further comprise a wall-mounted receiving member having a through hole through which the protrusion of the fixing bracket is inserted.
Patent KR-20190097531-A (KR)
Title: Separator for lithium secondary battery and lithium secondary battery including the same
Inventor: LEE JUNG YOON
IPC: H01M50/457
Filed: 2018-02-12
Abstract: Disclosed are a separator for a lithium secondary battery and the lithium secondary battery including the same. According to the present invention, a separator for a lithium secondary battery comprises: a porous substrate; and a coating layer disposed at least on one surface of the porous substrate. The coating layer contains heat resistant organic particles, an organic heat resistant binder, and an organic adhesive binder. The heat resistant organic particles have a pyrolysis temperature of 150°C or higher and a particle diameter of 100 to 300 nm. The organic heat resistant binder is a first organic material having a glass transition temperature of 130 to 200°C. The organic adhesive binder is a second organic material having a glass transition temperature of −40°C or lower. A mixing weight ratio of the organic heat resistant binder and the organic adhesive binder is 7 : 3 to 9 : 1.
Patent KR-20190097985-A (KR)
Title: Sealing member for protection door
Inventor: LEE JONG CHUL
IPC: E06B5/16
Filed: 2018-02-13
Abstract: The present invention relates to a sealing member for a fire door, which is inserted into a frame including a wall unit and a groove unit formed by the wall unit so as to seal the gap between a door and the frame, and comprises: an insertion unit inserted into the groove unit and opened upwardly such that a space unit may be formed; a fixating unit formed at one side surface of the insertion unit, and having the wall unit inserted from a lower side; and a wing unit formed to protrude from the bottom surface of the insertion unit so as to divide the space unit into a first space of one direction and a second space of the other direction, wherein the other side surface of the insertion unit is provided to be inclined by a predetermined first angle so as to be inserted into the groove unit, and a distal end of the fixating unit provided downwards is provided to be inclined by a predetermined second angle such that the fixating unit may be fixated on the wall unit. Therefore, according to the present invention, a contact unit made of an elastic material comes in face contact with the door, such that the interval between the door and the frame may be sealed, thereby continuously maintaining the function of preventing heat and harmful gas from being infiltrated into the inner space of the door. Furthermore, according to the present invention, the contact unit is elastically deformed by the door, thereby preventing breakage. In addition, according to the present invention, because the fixating unit is provided to surround the groove unit, and the other side surface of the insertion unit is provided to pressurize a side surface of the groove unit, dislocation from the groove unit by an external force can be prevented. Not only that, according to the present invention, the sealing member for a fire door, which can be elastically deformed, can be easily inserted when being inserted into the groove unit, and has a volume expanded by a restoring force after being inserted into the groove unit, thereby maintaining a more solid insertion state.
Patent KR-20190098317-A (KR)
Inventor: KIM JONG SUNG
IPC: E04B5/32
Filed: 2018-02-14
Abstract: The present invention relates to a hollow body for construction, a building construction method, and a building structure using the same. According to an embodiment of the present invention, the hollow body for construction comprises: a plurality of lightweight hollow bodies separated and positioned in a first and a second horizontal direction crossing each other, and provided with vertical through holes vertically formed on the centers thereof; a first connecting reinforcing bar penetrating the plurality of lightweight hollow bodies in the first horizontal direction; and a second connecting reinforcing bar penetrating the plurality of lightweight hollow bodies in the second horizontal direction. A portion where the first and the second connecting reinforcing bar cross each other is positioned in the vertical through hole of each of the plurality of lightweight hollow bodies. Also, according to an embodiment of the present invention, the building construction method using a hollow body for construction comprises: a step of arranging a first and a second lower reinforcing bar on a form; a step of positioning a hollow body for construction on the first and the second lower reinforcing bar; a step of arranging a first and a second upper reinforcing bar on a plurality of lightweight hollow bodies; and a concrete pouring step of pouring concrete. Also, according to an embodiment of the present invention, the building structure using a hollow body for construction comprises: a hollow body layer including a plurality of lightweight hollow bodies and a first and a second connecting reinforcing bar; a lower slab layer including a first and a second lower reinforcing bar on a lower portion of a hollow body for construction; and an upper slab layer including a first and a second upper reinforcing bar on an upper portion of the hollow body for construction.
Patent KR-20190106253-A (KR)
Title: Latent fluorimetric indicator and determinating method for analytes by using same
Inventor: PARK WON CHOUL
IPC: G01N21/63
Filed: 2018-03-08
Abstract: Disclosed by the present invention are: a latent fluorescent compound for measuring analyte, which inhibits cell permeation and also increases solubility in water; and a method for measuring analyte by using the same. The latent fluorescent compound of the present invention is represented by chemical formula 1, in which each of R1 to R3 is independently an alkyl group having 1 to 10 carbon atoms, X is O or NH, and Z is PO(OH)_2 or SO_3^-Na^+.
Patent KR-20190093098-A (KR)
Title: Automatic shoe-lacing machine and method for processing a shoe upper
Inventor: YANG YU FONG
IPC: B25J15/02
Filed: 2018-03-09
Abstract: An automatic shoe lacing machine for fixing a shoe lace (8) to an upper shoe (9) includes a jig unit (1), a robot arm unit (2), and a control unit (4). The jig unit (1) allows the upper shoe (9) to be disposed thereon. The robot arm unit (2) is disposed near the jig unit (1). The robot arm unit (2) simultaneously holds and moves two tipping members (81) of the shoe lace (8) to allow the tipping member (81) to sequentially penetrate an eyelet (93) formed in the upper shoe (9). The control unit (4) controls the movement of the robot arm unit (2). Therefore, an objective of the present invention is to provide the automatic shoe lacing machine which can solve at least one disadvantage of the prior art.
Patent KR-20190106604-A (KR)
Title: Obstacle detection gimbal camera rotating 360 degree with gyro stabilization
Inventor: BAE IL YONG
IPC: F16M11/06
Filed: 2018-03-10
Abstract: The present invention relates to a technique for an obstacle detection camera, which is provided on an unmanned vessel, unmanned aerial vehicle and unmanned vehicle to automatically detect intermediate-range obstacles present in front or rear sides, and to provide the detected obstacles to flight control and obstacle avoidance algorithms so as to avoid collisions with the obstacles in advance. The camera is a gimbal camera including a rotating motor (403) equipped with a daytime color camera (101) and night thermal imaging camera (102) and continuously rotating 360 degrees, a posture stabilization control board (401) executing a posture stabilization algorithm with a roll driving motor (202) and a pitch driving motor (302) capable of automatically compensating for movement of a moving ship or aircraft, and a motor driver (201) controlling a motor; and relates to a technique for automatically detecting the obstacles by the automatic detection algorithm and providing location information and images of the obstacle. Provided is an autonomous navigation basic technology which enables an unmanned body to automatically detect the obstacles and avoid the obstacles by itself by using a built-in image processing processor and the obstacle detection camera for automatically compensating for and stabilizing the shaking of a platform equipped with the obstacle detection camera (1000), such as ships, vehicles and aircrafts (including manned and unmanned) and monitoring everywhere when an upper camera body (400) rotates 360 degrees continuously to acquire an image by using the built-in color camera (101) and the thermal imaging camera (102).
Patent KR-20180106945-A (KR)
Inventor: JOHNSON THOMAS EDWARD
IPC: F23R3/28
Filed: 2018-03-15
Abstract: The present invention relates to a dual-fuel fuel nozzle with a liquid fuel tip, capable of preventing backflow of fuel gas. According to the present invention, the dual-fuel fuel nozzle comprises a center body at least partially defining an air plenum. A tip body is disposed on the downstream end part of the center body and includes an upstream surface spaced apart from the downstream surface in an axial direction. The downstream surface defines a circular slot and a circular recess inwardly disposed in a radial direction of the circular slot. The circular recess includes a floor and a sidewall. The floor defines an insert opening and the sidewall defines a circular groove including an undercut surface. Moreover, the tip body defines a plurality of orifices inwardly disposed in the radial direction of the sidewall of the circular recess and disposed around the insert opening in an annular shape. Each orifice includes an inlet fluid-communicating with the air plenum and an outlet oriented towards the undercut surface.
Patent KR-20180093840-A (KR)
Title: System and method for controlling environment of indoor zoo
Inventor: JEONG SANG MIN
IPC: H04W88/08
Filed: 2018-03-27
Abstract: In a system for controlling an environment of an indoor zoo, disclosed is the system including a user terminal which is provided to a visitor of the indoor zoo and includes information about an animal selected by each user, an information collecting device which acquires the information about the animal selected by the user from at least one user terminal which is located on each of one or more zones, wherein the indoor zoo is divided into the one or more zones, and a server which controls the indoor environment of each of the one or more zones based on the information about the animal acquired from the at least one user terminal located in each of the one or more zones. Accordingly, the present invention can provide experiences that the visitors of the indoor zoo can become the selected animal by using direct and indirect communication between the user terminal and the server.
Patent KR-20180111624-A (KR)
Title: Workpiece positioner and welding sequencer
Inventor: GODDARD J BRAD
IPC: B23K9/10
Filed: 2018-03-28
Abstract: An embodiment of a welding work cell is disclosed. One embodiment includes a workpiece placement system, a welding power source, and a welding operation sequencer. The workpiece placement system powers the up and down motions of the workpiece mounted between the headstock structure and the tailstock structure to relocate the workpiece for the next weld to be performed. The welding power source generates the welding output power based on the set of welding parameters of the power source. The welding operation sequencer instructs the workpiece placement system to relocate the workpiece from its current position to the next position according to the next step of the welding sequence of the welding schedule. The welding operation sequencer also commands the welding power source to adjust the current set of welding parameters to the next set of welding parameters according to the next step of the welding sequence of the welding schedule.
Patent KR-20180135798-A (KR)
Inventor: KIM TAE IL
IPC: H01M10/647
Filed: 2018-04-10
Abstract: Provided is a cooling case for batteries. According to one embodiment of the present invention, in the case which includes a space for accommodating at least one battery cell and comprises a first case and a second case, the first case comprises: a first coupling part coupled to the second case; and a first opening part opened to cool the battery cell by means of a cooling member as one side of the battery cell accommodated in the case is exposed to the outside.
Patent KR-20180115228-A (KR)
Inventor: MYUNG JI SUH
IPC: B01J37/02
Filed: 2018-04-11
Abstract: The present invention relates to a catalyst system for an oxidative dehydrogenation reaction, a reactor for oxidative dehydrogenation comprising the same, and an oxidative dehydrogenation method. More specifically, the catalyst system is configured such that a catalyst for an oxidative dehydrogenation reaction is filled in N-numbered (N is an integer equal to or greater than 2) stages in a fixed bed reactor wherein each stage is filled in order to satisfy formula 1, X wt% + Y wt% = 100 wt%, formula 2, X_n > X_n-1. Accordingly, heat generation occurring in the reactor is effectively controlled, thereby greatly improving conversion rates, the selectivity, and the yield, and improving long-term stability of the catalyst as deterioration of the catalyst is reduced. In formula 1, X is a content value of AB_2O_4 in the range of at least 5 or more to less than 30; A is at least one element selected from a group consisting of copper (Cu), radium (Ra), barium (Ba), strontium (Sr), calcium (Ca), beryllium (Be), zinc (Zn), magnesium (Mg), manganese (Mn), and cobalt (Co); B is iron (Fe); and Y is a content value of a porous support in the range of greater than 70 to 95 or less. In formula 2, X_n is the X of an n^th stage based on the direction, in which the reactant is introduced, and X_n-1 is X of an (n-1)^th stage.