baber/WOPTO huggingface dataset:
Patent KR-20120090494-A (KR)
Title: Mobile terminal and power control method for mobile terminal
Inventor: KIM JUNG HA
IPC: H04W88/04
Filed: 2011-02-08
Abstract: PURPOSE: A mobile terminal and a power control method thereof are provided to reduce power of a transmission signal while a mobile terminal is operated in a tethering mode and to reduce electromagnetic wave absorption rate. CONSTITUTION: A communication unit(110) performs connection to a wireless internet. In case a control unit(180) is operated in a mode for relaying a signal between the wireless internet and a peripheral device through the communication unit, the control unit reduces power of the signal transmitted through the communication unit.
Patent KR-20120091945-A (KR)
Title: Novel photorhabdus temperata m1021 and method for controlling pests using the same
Inventor: SHIN JAE HO
IPC: A01N63/20
Filed: 2011-02-10
Abstract: PURPOSE: A novel Photorhabdus temperata M1021 and a composition containing the same for preventing pest are provided to ensure excellent antibacterial effect against harmful bacteria and to prevent various crops from damage due to pest. CONSTITUTION: A Photorhabdus temperate M1021(deposit number: KACC91627P) is isolated from entomopathogenic nematode. The novel strain has an insecticidal effect against Lepidoptera pest including Galleria mellonella, Plutella xylostella, Spodoptera litura, Alcis angulifera, Adoxophyes orana, Ptycholoma lecheana, Cydia Kurokoi, Grapholita molesta, Lyonetia prunifoliella, Carposina sasakii, Spodoptera exigua, Diaphania indica, Cnaphalocrocis medinalis, Chilo suppressalis, or Helicoverpa armigera. A composition for preventing pest contains Photorhabdus temperate or culture thereof as an active ingredient.
Patent KR-20120093551-A (KR)
Title: Supporter of flood light for ship
Inventor: LEE KYUNG MOOK
IPC: F21S6/00
Filed: 2011-02-15
Abstract: PURPOSE: A flood light supporter for a ship is provided to stably support the weight of a flood light and an upper supporter and to adjust the direction of the flood light. CONSTITUTION: A flood light supporter for a ship comprises a lower supporter(100), an upper supporter(200), and a horizontal fixing bolt(410). The lower supporter is vertically fixed in a hull. The upper supporter comprises a vertical extension part(210) and a horizontal extension part(230). The horizontal extension part is connected to the vertical extension part and a flood light(10) is loaded on the end of the horizontal extension part. The horizontal fixing bolt is fixed in an outer wall of the lower supporter while horizontally passing through a sleeve of the upper supporter.
Patent KR-20120094589-A (KR)
Title: Computer system having cradle and block managing method thereof
Inventor: SUG HYON TAI
IPC: G06F13/14
Filed: 2011-02-17
Abstract: PURPOSE: A computer system including a cradle and block management method using the same are provided to maximize the convenience of mobility of a computer work by providing a block management function which automatically synchronizes the data of two computers. CONSTITUTION: A first computer(10) includes a first CPU(Central Processing Unit), a first main memory unit, a first input/output bus, a first connector(11), a display unit, an input apparatus and a second sub memory unit(12). A second computer(20) includes a second CPU, a second main memory unit, a second input/output bus, a second connector(21), and a second sub memory unit(22). A cradle(30) includes a connection bus, a third connector(31), and a fourth connector(32). The first sub memory unit includes a block management module(14), block management information(15), and connection blocks(13).
Patent KR-20120098287-A (KR)
Title: System and method for pushed prevention of a vehicle
Inventor: PAIK CHANG HYUN
IPC: B60K15/03
Filed: 2011-02-28
Abstract: PURPOSE: A system and a method for preventing the backing up phenomenon of a vehicle are provided to prevent the occurrence of accidents by increasing the no-load operation speed of the engine of a vehicle if the vehicle is stopped on a slope. CONSTITUTION: A system for preventing the backing up phenomenon of a vehicle is composed of a slope verifying part, a speed verifying part, and an engine controlling part. The slope verifying part verifies whether the driving road of a vehicle is a slope based on the position of a fuel gauge which is variable according to the amount of injected fuel in a fuel tank(S110). The speed verifying part confirms the stopped state of the vehicle based on the current speed of the vehicle(S170). The engine controlling part increases the no-load operation speed of the engine of the vehicle if the vehicle is stopped on the slope(S190). [Reference numerals] (AA) Start; (BB) End; (S110) Measuring the position of a fuel gauge; (S120) Storing the buffer position of the position measurement; (S130) Measured value of a current position is more than the buffer value?; (S140) Setting a reference value; (S150) Measured value of the current position is more than or equal to the reference value?; (S160) Verifying a slope; (S170) Vehicle stops?; (S180) Brake signals are detected?; (S190) Increasing the Idle speed of an engine; (S200) Acceleration pedal operates?; (S210) Reducing the accelerated speed of the engine
Patent KR-20120100213-A (KR)
Title: The ridge for light shaft board of roof
Inventor: KIM KYUNG JIN
IPC: E04D1/30
Filed: 2011-03-03
Abstract: PURPOSE: A ridge for a lighting plate of a roof is provided to improve lighting and heat insulating effects by shielding the gaps between lighting plates of a roof. CONSTITUTION: A ridge for a lighting plate of a roof comprises ridge members(20). The ridge members are installed on the uppermost portions of lighting plates(10) of a roof coupled to each other. Each ridge member has wing portions(32) and insertion portions(34). The wing portions are protruded from both sides of a partition wall(31) of a ridge body(30). The insertion portions are formed on both ends of the ridge body and overlap with another ridge member.
Patent KR-20120102257-A (KR)
Title: Dressed poultry cutting apparatus
Inventor: IM HYOUNG BONG
IPC: B26D5/04
Filed: 2011-03-08
Abstract: PURPOSE: A cutting apparatus for dressed carcasses of chicken is provided to prevent the separation or slipping of the skin from the chicken when cutting the dressed carcasses. CONSTITUTION: A cutting apparatus for dressed carcasses of chicken includes an upper frame(110), a lower frame(120), a driver(130), and an operation unit(140). The operation unit for cutting the dressed carcasses of the chicken is installed on the upper frame. The lower frame is formed into a cube shape using plural square pipes to obtain the predetermined intensity value of the frames, and supports the upper frame. A hydraulic driver is installed on the lower frame for operating the operation unit. The driver includes an oil tank for storing working medium oil, the hydraulic driver transferring the oil by the operation of a switch, and a hydraulic cylinder operated by the oil. The operation unit includes a processing frame, a cutter, and a push-head.
Patent KR-20120104843-A (KR)
Title: Guardrail protector
Inventor: BYUN JONG SEOK
IPC: E01F15/00
Filed: 2011-03-14
Abstract: PURPOSE: A protection device for a guide rail is provided to reduce damages to vehicles and losses of life by buffering external shock. CONSTITUTION: A protection device(100) for a guide rail comprises a front cover(110) and a shock absorbing material(120). The front cover covers the front side of a fence panel(11). The front cover comprises a cover body(111), an upper hanger portion(112), and a lower hanger portion(113). The cover body covers the front side of the fence panel. The upper hanger portion is downwardly bent in order to hang on the upper end of the fence panel. The lower hanger portion is upwardly bent in order to hang on the lower end of the fence panel. The shock absorbing material is placed between the front side of fence panel and the front cover.
Patent KR-20110108269-A (KR)
Inventor: KIM HYUN MIN
IPC: F21V29/00
Filed: 2011-03-21
Abstract: 본 발명은 일체형으로 조합된 조명모듈에서 [발광-광확산-방열]작용이 효율적으로 이루어지는 엘이디 조명모듈과, 이를 다수 조합하여 조명램프를 구성하면 넓은 배광이 이루어지고 램프의 사방에 형성된 다수의 통풍구멍을 통해 대류방열 되어 발광효율과 사용수명이 수만시간 유지되는 조명램프에 관한 것이다. 
이를 위한 엘이디 조명모듈은 다수의 수직투사형 및 측면투사형 LED 소자가 배열된 LED 모듈과 좌우측면에 돌출형 날개가 형성된 광확산 커버 및 얇은 방열판을 일체형으로 결합하여 가볍고 경제적인 조명모듈을 이룬 것이다. 또한 상기 엘이디 조명모듈을 이용한 본 발명의 조명램프는, 전원모듈을 내장한 하우징의 커버에 다수의 상기 엘이디 조명모듈을 장착하고 하단 커버로 이를 체결하여, 사용방향에 상관없이 원활하게 방열 되고 180도 배광이 가능한 조명램프를 이룬 것이다.
Patent KR-20120107748-A (KR)
Title: 성형용기 성형장치 및 성형용기 성형방법
Inventor: KO KIL SUNG
IPC: B29C49/28
Filed: 2011-03-22
Abstract: 본 발명은, 내면에 제1성형부(11)가 형성된 제1성형금형(10)과; 상기 제1성형금형(10)과 대응되는 내면에 상기 제1성형부(11)와 대칭되는 모양으로 제2성형부(21)가 형성된 제2성형금형(20)과; 상기 제1성형금형(10)의 하부측에 위치 구성되어 상기 제1성형부(11)의 하부에 스크랩을 형성하는 제1코어(30)와; 상기 제2성형금형(20)의 하부측에 위치 구성되어 상기 제2성형부(21)의 하부에 스크랩을 형성하는 제2코어(40)와; 로 구성되고, 상기 제1코어(30)에는 상기 제2성형금형(20)측으로 제1코어(30)를 밀어주는 제1밀림가이드(31)가 더 구성되며, 상기 제2코어(40)에는 상기 제1성형금형(10)측으로 제2코어(40)를 밀어주는 제2밀림가이드(41)가 더 구성되어 이루어진다. 
상기 제1밀림가이드(31)와 제2밀림가이드(41)는 한정하는 것은 아니나, 상기 제1코어(30)와 제2코어(40)를 열가소성수지물(101)측으로 밀어주고 용기가 성형된 후 원래의 위치로 복귀함이 용이하도록 하기 위해 유압 또는 공압실린더로 구성할 수 있으며, 이외에 신장 및 수축되는 스프링 등으로 이루어질 수 있다. 
본 발명인 성형용기 성형방법은, 내면에 제1성형부(11)가 형성된 제1성형금형(10)과 내면에 제2성형부(21)가 형성된 제2성형금형(20)의 내면측으로 열가소성수지물(101)을 투입하는 열가소성수지물 투입단계(S1); 상기 열가소성수지물 투입단계(S1)에 의해 열가소성수지물(101)이 투입되면 제1성형금형(10)과 제2성형금형(20)의 하부에 각각 구성된 제1코어(30)와 제2코어(40)가 상기 열가소성수지물(101)측으로 각각 이동되는 코어 이동단계(S2); 상기 코어 이동단계(S2)에 의해 상기 제1성형금형(10)의 제1성형부(11)와 제2성형금형(20)의 제2성형부(21) 하부에 스크랩(102)이 형성되는 스크랩 형성단계(S3); 상기 코어 이동단계(S2)에 의해 제1코어(30)와 제2코어(40)가 열가소성수지물(101)측으로 이동되어 스크랩(102)이 형성된 후 상기 제1성형금형(10)과 제2성형금형(20)이 각각 상기 열가소성수지물(101)측으로 이동하는 성형금형 이동단계(S4); 상기 성형금형 이동단계(S5)에 의해 열가소성수지물(101)이 제1성형금형(10)의 제1성형부(11)와 제2성형금형(20)의 제2성형부(21)에 의해 용기로 성형되는 용기성형단계(S5)가 포함되어 이루어진다. 
본 발명은 제1성형부가 형성된 제1성형금형과 제2성형부가 형성된 제2성형금형이 서로 대칭되게 위치되어 이들 제1성형금형과 제2성형금형이 서로 대응되게 접하는 것에 의해 열가소성수지물이 용기로 성형됨에 있어서, 제1성형금형과 제2성형금형을 서로 접하기 전에 먼저 제1코어와 제2코어가 먼저 접하여 스크랩이 형성된 상태에서 성형용기가 성형되기 때문에, 스크랩의 두께가 얇아질 수 있어 성형되는 성형용기의 하부측 두께가 두껍게 성형되어 성형용기의 불량을 최소화할 수 있을 뿐만 아니라, 스크랩의 두께가 얇게 성형되어 원자재의 낭비를 줄일 수 있어 경제적인 효과를 가져올 수 있다.
Patent KR-20120111760-A (KR)
Inventor: KIM GOANG NGYUN
IPC: B62D6/00
Filed: 2011-03-25
Abstract: PURPOSE: A steering wheel control method changing driving direction, a steering wheel control method, an electric steering wheel, a fluid pressure steering wheel, an electromagnet sensing steering wheel, a vibration steering wheel, and an intelligent steering wheel are provided to be combined with each other. CONSTITUTION: A steering wheel control method changing driving direction is performed through an electric steering wheel, a fluid pressure steering wheel, an electromagnet sensing steering wheel, a vibration steering wheel, and an intelligent steering wheel having different property and capable of being combined with each other.
Patent KR-20120109114-A (KR)
Title: The gas burner in which able to control fire adjustment at manydirection
Inventor: KIM JUNG SOO
IPC: F24C15/12
Filed: 2011-03-27
Abstract: PURPOSE: A gas burner is provided to prevent safety accidents generated when users touch an object being heated. CONSTITUTION: A gas burner comprises a control handle part and a control part. Control handle units are respectively installed on two or more surfaces of the gas burner. When users rotate one control handle unit, the other control handle units are automatically operated. Each control handle unit is rotated in a same direction. The control part comprises connection units for transferring rotary power to a knob.
Patent KR-20110115079-A (KR)
Inventor: SONG YOUNG CHAE
IPC: H01M8/16
Filed: 2011-04-04
Abstract: 본 발명은 회분식 수면공기양극 미생물연료전지 장치에 관한 것으로, 특히 양극 및 음극 각각에 접촉하도록 전도성고분자를 코팅한 금속 집전체를 설치하고 양극 상단에 수증기 응축장치를 설치한 회분식 수면공기양극 미생물연료전지 장치에 관한 것이다. 이와 같은 본 발명은 회분식 수면공기양극 미생물연료전지 장치에 있어서, 수면공기양극 미생물연료전지 반응조 본체에 음극용액을 채우고, 본체의 바닥면에서 일정거리가 이격된 높이에 설치된 음극지지대 위에 음극을 고정시키고, 음극지지대와 음극 사이 또는 음극의 상부와 분리막 사이에 음극 집전체를 배치하고, 분리막 상부에 양극을 설치하고, 양극이 고정될 수 있도록 양극의 상부에 양극 지지대를 설치하고, 양극과 양극 지지대 사이에는 양극 집전체를 설치하며, 양극 지지대 상부에는 양극 표면을 통하여 증발하는 수증기를 포집하여 본체의 벽면을 따라 음극용액에 재공급될 수 있도록 하는 수증기 응축장치를 포함하되, 상기 양극 집전체와 음극 집전체에는 각각 확장된 도선이 외부로 노출되게 설치되는 회분식 수면공기양극 미생물연료전지 장치를 제공한다.
Patent KR-20110115083-A (KR)
Inventor: YOU HEE WOOK
IPC: H01L21/66
Filed: 2011-04-08
Abstract: 조명세기를 설정하기 위하여, 검사 장치 내에 검사 기판을 장착하고, 검사 장치의 카메라를 통해 획득한 촬영 이미지의 히스토그램의 폭이 다크 영역 및 브라이트 영역을 피하도록 조정한다.  이어서, 히스토그램이 그래프의 중앙에 가깝도록 조정하는 과정을 통해 검사 장치의 조명 세기를 조정한다.  따라서, 잡파일에 저장되는 검사조건의 설정 시간을 단축하여 사용자의 편의성을 높이고, 잘못된 설정으로 인한 측정 오류를 감소시켜 검사 정밀도를 향상시킬 수 있다.
Patent KR-20120115772-A (KR)
Title: The method for presenting data type candidate while desinging a database model
Inventor: WON YOUNG JIN
IPC: G06F17/30
Filed: 2011-04-11
Abstract: PURPOSE: A candidate suggesting method for determining a field type in database model design is provided to shorten a use time and automate a data type determination process through a data lot test in database model design. CONSTITUTION: Round confirmation is performed according to each data item, each row, and each column. A character type is confirmed according to each item. If the item is determined as the character type, the longest charter is confirmed. If the item is determined as a numerical type, the inclusion of decimal values is confirmed. If the item is determined as a integer type, a maximum value and a minimum value are confirmed. An integer data type without the waste of capacity is determined according to the maximum value and the minimum value. [Reference numerals] (AA) Each field; (BB) Confirming whether characters are included; (CC) If(confirming whether characters are included in data); (DD) If(confirming whether a point are included in data); (EE) Determining the size of a integer type field; (FF) Double clicks if you want to see; (GG) Providing recommended data type of each field
Patent KR-20120118822-A (KR)
Title: Exposing method using maskless exposure apparatus and method of fabricating liquid crystal display using thereof
Inventor: PARK WON DEOK
IPC: G02F1/13
Filed: 2011-04-19
Abstract: PURPOSE: An exposure method using a maskless exposure device and a manufacturing method of a liquid crystal display device using the same are provided to shorten exposure tact time and to minimize the errors of patterns due to a stage driving operation. CONSTITUTION: A maskless exposure device includes a flat stage and a digital micro-mirror device(DMD) array(150). The stage is arranged on a base and supports a substrate(101). The DMD array is composed of a plurality of DMDs over the base. An exposure method using the maskless exposure device includes the following: the maskless exposure device is prepared; a substrate with a first coated layer is loaded on the stage; the entire surface of the substrate is exposed by using the DMD array; a substrate with a second coated layer is loaded on the stage; and the DMD array is divided into a plurality of exposure areas and selectively operate the exposure areas for exposing the substrate.
Patent KR-20120120652-A (KR)
Title: Emergency Evacuating Apparatus
IPC: A62B1/20
Filed: 2011-04-25
Abstract: PURPOSE: An emergency evacuating device is provided to enable evacuee to safely evacuate regardless of age. CONSTITUTION: An emergency evacuating device comprises a shelter(110), a descending unit(120), an elastic member(130) and a hole(140). The shelter is penetrated into each layer of a building in a zigzag shape. The descending unit is combined in a multi-stage. The descending unit is fixed to the ceiling of the building. The descending unit is slid due to the inflow of air in a through-hole when the evacuees are evacuated. The elastic member elastically ascends the descending unit by being installed inside the descending unit. The through-hole is formed at the upper part of the descending unit. The descending unit is descended at constant speed, and the through-hole inhales and exhausts air. The descending unit comprises a supporting member(121), first and second falling edge ashes(122,123), a packing(124), and a bottom plate(125). The supporting member is fixed to the ceiling of the building.
Patent KR-20120137560-A (KR)
Title: Method, system and non-transitory computer-readable recording medium for providing benefit to customer and/or managing customer information by using receipt having code printed thereon
Inventor: KIM SEO JOON
IPC: G06V30/224
Filed: 2011-04-25
Abstract: PURPOSE: A method for providing or managing benefits to customers by using a code-printed receipt, a system thereof, and an electronically decodable recording medium of nontemporary are provided to easily perform customer management by providing the benefits to the customers with a more customer-intimate method. CONSTITUTION: A code generator(210) generates a decodable code based on customer payment information. When a customer terminal device recognizes that the code is printed on a receipt according to payment, a customer information manager(220) receives corresponding code recognition information from the customer terminal device. The customer information manager grants benefits for a customer account based on the code recognition information. [Reference numerals] (210) Code generating unit; (220) Customer information manager; (230) Member store information manager; (240) Database; (250) Communication unit; (260) Control unit
Patent KR-20120124600-A (KR)
Title: Control System of Brake And Method thereof
IPC: B60T8/92
Filed: 2011-05-04
Abstract: PURPOSE: A control system of a brake for a vehicle and a method thereof are provided to prevent accidents by operating a parking brake when detecting damage to a vehicle brake. CONSTITUTION: A control system of a brake for a vehicle comprises an operation oil tank(220), a brake master cylinder(250), a brake wheel cylinder, and a damage detection unit. The operation oil tank supplies operation oil to a brake assembly. The brake master cylinder generates hydraulic pressure by the operation of a brake pedal. The brake wheel cylinder generates a braking force. The damage detection unit comprises a detection panel(294) and a detection sensor(292). The detection panel is installed between the brake pedal and the brake master cylinder and coupled with one side of the brake pedal to be rotated. The detection sensor is formed in the end portion of the detection panel.
Patent KR-20120126512-A (KR)
Title: Inducement weapon assignment system and method using CLP method and computer-readerable storage medium having a program recorded thereon where the program is to carry out its method
IPC: G06F19/00
Filed: 2011-05-12
Abstract: PURPOSE: An air guided weapon allocating system to which a CLP(Constraint Logic Programming) technique is applied, and an electronically decodable recording medium including a program for performing the method are provided to minimize the interference of arms during a multiple aim simultaneous engagement and enable a simultaneous engagement with the biggest target with a limited weapon. CONSTITUTION: Operation consoles(100,110) control the allocation of launchers and guided missiles to attack enemy flight vehicles during a multiple aim simultaneous engagement with the enemy flight vehicles in an air guided weapon system. Radar(300) traces targets of the enemy flight vehicles and provide wake information. A mission computer(200) minimizes the interference of arms during the multiple aim simultaneous engagement, monitors and manages the wake of the enemy flight vehicles to enable a simultaneous engagement with the biggest target with a limited weapon, efficiently allocates the weapons based on a CLP technique. [Reference numerals] (100,110) Operation console; (210) Wake management; (220) Battle control; (300) Radar; (AA) Mission computer; (BB) System employing a CLP weapon allocation method
Patent KR-20110059691-A (KR)
Title: Method for removing nitrogen from anaerobic digested waste water
Inventor: GWON TAE HYEOK
IPC: C02F3/30
Filed: 2011-05-13
Abstract: PURPOSE: A method for eliminating the nitrogen of anaerobic digestion effluent is provided to effectively eliminate nitrogen from the anaerobic digestion effluent and reduce the supply of organic carbon source and air. CONSTITUTION: A method for eliminating the nitrogen of anaerobic digestion effluent includes the following: Anaerobic digestion effluent is introduced into a first anoxic chamber(20). Nitrite and nitrate contained in the effluent are reduced into nitrogen gas. The effluent is introduced into a first aeration chamber(30). Ammonia in the effluent oxidized into nitrite or nitrate. The oxidized amount of the nitrate is more than oxidized amount of the nitrite. The effluent is reintroduced into anoxic chamber and is reduced into nitrogen gas. The effluent is introduced into a second anoxic chamber(70). Nitrate in the effluent is reduced into nitrogen gas. The effluent is introduced into a second aeration chamber(80). Remained ammonia in the effluent is oxidized into nitrate. The effluent is introduced into a settling chamber(50) or a pressurized floating chamber. Sludge is separated from the effluent, and a part of the sludge is transferred to the first anoxic chamber.
Patent KR-20120129045-A (KR)
Title: Method for implementing symmetric key encryption algorithm against power analysis attacks
IPC: H04L9/14
Filed: 2011-05-18
Abstract: PURPOSE: A method for implementing a symmetric key encoding algorithm corresponding to a sub-channel attack is provided to calculate masked S-box by creating and storing an affine map table and a masked inversion table. CONSTITUTION: An affine conversion table is created and stored(S20). A masking inversion table is created and stored(S30). The masked S-box is calculated using the affine conversion table and the masking inversion table(S40). The affine conversion table and the masking inversion table are commonly used at every round. [Reference numerals] (AA) Start; (BB) Finish; (S10) Inversion table is stored; (S20) Affine conversion table is stored; (S30) Masking inversion table is stored; (S40) Masked S-box is calculated using the affine conversion table, the affine conversion table, and the masking inversion table
Patent KR-20120132656-A (KR)
Title: Simplified organic electronic devices employing polymeric anode with high work function
IPC: H01L51/50
Filed: 2011-05-27
Abstract: PURPOSE: An organic electronic device is provided to simplify a device structure by omitting a hole extract layer for controlling a work function with a light-emitting layer using a high-work function and a high-conductivity electrode. CONSTITUTION: A high-work function electrode(15) is formed on the upper side of a substrate(10). The high-work function electrode comprises conductive material having the conductivity over 0.1S/cm and base-surface energy material. The high-work function electrode has a first side(15A) and a second side(15B) facing with the first side. The concentration of the base-surface energy material of the second side is greater than the concentration of the base-surface energy material of the first side. The concentration of the base-surface energy material gradually increases along a direction facing the second side from the first side.
Patent KR-20120134355-A (KR)
Title: Apparatus opening and closing a window for ventilating a warehouse storing agriculture products
Inventor: LEE KYEONG GYU
IPC: E05F15/20
Filed: 2011-06-02
Abstract: PURPOSE: An opening and closing device for a ventilation window for an agricultural product storage is provided to stably and automatically open and close a ventilation window using a motor. CONSTITUTION: An opening and closing device(32) for a ventilation window for an agricultural product storage comprises a motor, first and second fixtures, a connector(300), and a cover(400). The motor supplies driving force for opening and closing a ventilation window. The first and second fixtures connect the drive shaft(36a) of the motor and the rotary shaft(22) of the ventilation window to each other. The connector connects the other end of the first fixture and one end of the second fixture to each other and transfers driving force from the motor to the rotary shaft of the ventilation window. The cover covers the other end of the first fixture, one end of the second fixture, and the connector.