baber/WOPTO huggingface dataset:
Patent KR-20090094156-A (KR)
Title: Handpiece for detection of dental demineralization
Inventor: STOOKEY GEORGE K
IPC: A61B1/24
Filed: 2007-12-19
Abstract: A dental implement including a housing, a light source, and an air supply.
Patent KR-20100014673-A (KR)
Title: Device for the treatment of water, in particular a filter device, and cartridge
Inventor: NAMUR MARC
IPC: B01D27/08
Filed: 2008-03-20
Abstract: The invention relates to a device for the treatment of water, in particular a filter device. The device has a cartridge (1) which has a container (2) for receiving treatment means for water, particularly for receiving filter means, and a connection head (10) arranged on the container (2). In addition, a connection element (40) is provided which has a recess (50) for the connection head (10). At least one locking shaft (70a, b) is provided with which the connection head (10) can be fixed in the connection element (40). The locking shaft (70a, b) is rotatably mounted and can be rotated from a locking position to an unlocking position and back again. The invention also relates to a cartridge (1) with a recess in the connection head (10).
Patent KR-20100015871-A (KR)
Title: Process for the carbonylation of dimethyl ether
Inventor: DITZEL EVERT JAN
IPC: B01J29/22
Filed: 2008-04-23
Abstract: Production of methyl acetate by carbonylating a dimethyl ether feed with carbon monoxide in the presence of hydrogen under substantially anhydrous conditions, in the presence of a zeolite catalyst at a temperature in the range of greater than 250°C to 350°C and a dimethyl ether concentration of at least 1 mol%.
Patent KR-20100005098-A (KR)
Title: Plasma display device, and driving method used in the plasma display device
Inventor: MATSUMOTO YUKIHIRO
IPC: G09G3/298
Filed: 2007-03-30
Abstract: Intended is to reduce the after-image (or burning) to occur in a plasma display device, within a short time. At the time of starting a first after-image countermeasure driving mode, the discharge number changes gradually from a first driving power (p1) to a second driving power (p2). At the ending time, the discharge number changes gradually from the second driving power (p2) to the first driving power (p1). At the time of starting a second after-image countermeasure driving mode, the discharge number changes gradually from the first driving power (p1) to a third driving power (p3). At the ending time, the discharge number changes gradually from the third driving power (p3) to the first driving power (p1). The second driving power (p2) is higher than the first driving power (p1), and the third driving power (p3) is lower than the first driving power (p1).
Patent KR-20100016256-A (KR)
Title: Ozone water generator
Inventor: NISHIMURA YOSHIYUKI
IPC: C25B1/13
Filed: 2008-01-10
Abstract: An ozone water generator (100) which generates ozone water by supplying water to a catalyst electrode (2) in which a cation-exchange membrane (21) is interposed between a positive pole electrode (22) and a negative pole electrode (23), while a DC voltage is applied between the positive pole electrode (22) and the negative pole electrode (23). In the ozone water generator (100), a material water supply channel (13) for supplying material water to the positive pole electrode (22) and the negative pole electrode (23) is provided in the main body (1) of a case wherein the catalyst electrode (2) is stored. In a portion of the cation-exchange membrane (21) which faces the material water supply channel (13), a communicating hole (211) is formed through which the positive pole electrode (22) and the negative pole electrode (23) communicate with each other. Water flowing from the material water supply channel (13) is supplied to either the positive pole electrode (22) or negative pole electrode (23), and then is supplied to the other electrode via the communicating hole (211).
Patent KR-20100017533-A (KR)
Title: Release coating composition and method of forming the same
Inventor: EKELAND ROBERT ALAN
IPC: C08J5/18
Filed: 2008-05-23
Abstract: A release coating composition includes a curable polysiloxane and an aerosol suppressant that has more than one SiOunit. The aerosol suppressant includes the polymerization product of a siloxane and a cyclic polysiloxane polymerized in the presence of a polymerization catalyst. The siloxane has units of the chemical formula (SiO)(RRSiO)wherein Ra is a vinyl moiety, Ris an alkyl moiety, and x is a number from 1.05 to 4. The release coating composition is formed by combining the aerosol suppressant and a curable polysiloxane. The release coating composition is also used to coat a substrate in a release coating process producing a mist of less than 50 mg/cubic meter measured at approximately 457 m/min.
Patent KR-20100020482-A (KR)
Title: A medicament comprising a carbostyril derivative and donepezil for treating alzheimer's disease
Inventor: ARAI HEII
IPC: A61K31/4709
Filed: 2008-05-21
Abstract: The invention relates to a medicament for treating Alzheimer's disease comprising as active ingredients a carbostyril derivative of the general formula: wherein A is a lower alkylene group, R is a cycloalkyl group, the bonding between 3-and 4-positions of the carbostyril skeleton is a single bond or a double bond, or a salt thereof; and donepezil or a salt thereof.
Patent KR-20100031692-A (KR)
Title: High intensity discharge lamp with enhanced dimming characteristics
Inventor: BOROCZKI AGOSTON
IPC: H01J61/36
Filed: 2008-05-20
Abstract: A high intensity discharge lamp comprises a discharge vessel and two electrode rods having substantially flat ends facing to each other in opposite positions within the discharge vessel. A spiral coil of wire is wound at least on a part of the surface of at least one of the electrode rods. The spiral coil protrudes over said end of the corresponding electrode rod and thus forms a hollow cavity for extending dimmable wattage range of the lamp.
Patent KR-20110079936-A (KR)
Inventor: KIM SEOG YONG
IPC: G01B3/10
Filed: 2010-01-04
Abstract: 본 발명은 줄자에 관한 것으로서, 보다 상세히는 줄자 케이스 내의 띠부재의 길이를 월등히 연장함과 더불어 부피 및 무게를 줄여 휴대가 용이하게 하고자 본 발명은, 케이스의 내측 중심봉에 롤형태로 감겨 있는 띠부재가 일측의 출입구멍을 통해 풀리거나 또는 역으로 감기도록 된 휴대형 줄자에 있어서, 상기 띠부재가 감긴 스풀이 상기 중심봉의 중간부에 회전가능하게 조립되며, 상기 스풀을 역회전시켜 띠부재를 감아 당기는 제1, 제2복귀수단이 상기 스풀의 양측에 구비된 것을 특징으로 하는 휴대형 줄자를 제안하는 것이다.
Patent KR-20110079995-A (KR)
Title: Movement back trainer for controll magnetic fluid
Inventor: KIM GYOO SUK
IPC: A61H1/02
Filed: 2010-01-04
Abstract: PURPOSE: A waist training apparatus of fluid self-control type is provided to freely move arms and to ensure easy picking up. CONSTITUTION: A waist training apparatus of fluid self-control type comprises a body part, a rotation part, a clench of fluid self-control type, and a voltage generator. The body part has fixation frame for fixing user's shoulder, head, and chest. The rotation body has first and second rotation frames. The clench(130) of fluid self-control type controls the rotation of the rotation part. The voltage generator forms a voltage to a magneto fluid cylinder.
Patent KR-20110083235-A (KR)
Title: Method of controlling the washing machine with twindrum
Inventor: CHOI WON SIM
IPC: D06F33/02
Filed: 2010-01-14
Abstract: PURPOSE: A method of controlling a washing machine with twin drums is provided to simultaneously perform washing by the amount of laundry and kinds. CONSTITUTION: A first washing tub(301) and a second washing tub(302) are differently formed in its size. An operation command is inputted to the first and the second washing tubs. It is determined whether the operation command execution is available or not. If the operation command is determined to be available, the operation command is executed.
Patent KR-20110085782-A (KR)
Title: Image processing apparatus and image processing method
Inventor: KOBAYASHI ATSUSHI
IPC: H04N5/225
Filed: 2010-01-21
Abstract: PURPOSE: An image processing device and image processing method are provided to solve the accident by checking an image photographed in real time. CONSTITUTION: A photographing element generates an image signal by photographing an image. A photographing element control unit(121) controls a photographing element to successively output a line image signal of an image signal from the photographing element. The line memory(132) stores one line image signal. A line memory controller(133) performs left and right reversion of an image body controlling read of line image signal from a line memory.
Patent KR-20110086913-A (KR)
Title: Dish washer
Inventor: KIM JUN HO
IPC: A47L15/42
Filed: 2010-01-25
Abstract: PURPOSE: A dish washer which improves washing efficiency and water injecting efficiency is provided to improve washing efficiency by evenly ejecting water using a water ejecting nozzle. CONSTITUTION: A dish washer comprises a main body(100), a water ejecting nozzle(111), and a rack. The water ejecting nozzle is located on the top of the main body and ejects water to the top and bottom part of the main body. Dishes are stacked on the rack and washed by water supplied from the water ejecting nozzle. A fixed guide bracket(120) has a rim part to settle the rack part on top of the main body.
Patent KR-20110086981-A (KR)
Title: Light emitting diode flash module of camera and camera apparataus
Inventor: KIM JIN HA
IPC: G03B15/03
Filed: 2010-01-25
Abstract: PURPOSE: An LED flash module of a camera and a camera apparatus are provided to photograph an object colorful and to increase the yield of an LED package. CONSTITUTION: An LED flash module of a camera comprises a control signal generation unit(110), a drive rectification generation unit(121), a switching unit(131), and light emitting unit(130). The control signal generation unit generates a control signal depending on the selection of a user. The drive rectification generation unit generates a drive current. The switching unit forms two or more current routes and selects one of the current routes in order to output the drive current through one selected current route. The light emitting unit emits light with the temperature of cold white or warm white.
Patent KR-20110087070-A (KR)
Title: Reclining apparatus having advanced response for automobile seat
Inventor: SHIN YONG HEE
IPC: B60N2/22
Filed: 2010-01-25
Abstract: PURPOSE: A reclining apparatus for a vehicle seat with improved responding properties is provided to enable a passenger to easily adjust the angle of a seat back when a lock plate is separated from a fixed flange. CONSTITUTION: A reclining apparatus for a vehicle seat with improved responding properties comprises a fixed flange(110), a lever shaft(120), a torsion spring, a rotary flange(140), a lock plate(150), and a housing(170). The fixed flange is coupled to a seat cushion frame and has a first through hole and a first inclined gear unit. The lever shaft passes through the first through hole and is rotated when a seat back lever is operated. One end of the torsion spring is fixed to the lever shaft, and the other end is fixed to the fixed flange. The rotary flange is coupled to the seat back frame and has a second through hole and a second gear unit. The lock plate is movably inserted into the lever shaft and has an inclined gear meshed with the first gear unit and a spur gear meshed with the second gear unit. The housing couples the fixed flange and the rotary flange.
Patent KR-20110087974-A (KR)
Title: Method and system for switching call service in mobile terminal
Inventor: LEE SAENG HEE
IPC: H04W88/06
Filed: 2010-01-28
Abstract: PURPOSE: A call switch service method of a mobile terminal and system thereof are provided to perform call switch without interrupting a call between a mobile terminal and a data communication device. CONSTITUTION: A control unit of a mobile terminal obtains the address of a data communications device(601). The control unit requests a call switch(603). In case an RF(Radio Frequency) unit receives a call switching completion message, the control unit controls the configuration of the mobile terminal(605,607).
Patent KR-20110088166-A (KR)
Title: Apparatus for making ice
Inventor: LEE CHUL HEE
IPC: F25C1/18
Filed: 2010-01-28
Abstract: PURPOSE: An ice making apparatus is provided to make transparent ice with high-quality by installing a linear motor which generates strong waves using a small amount of energy. CONSTITUTION: An ice making apparatus comprises a receiving member(20), a heat exchange member(40), and a linier motor(60). The receiving member stores water. The heat exchange member is arranged on the top of the receiving member and has fingers(42) which are selectively in contact with the water stored in the receiving member. The linear motor is installed on one surface of the receiving member and allows the receiving member to resonate.
Patent KR-20110094572-A (KR)
Title: Composition including beta-carboline alkaloid for stimulating melanin production
Inventor: LEE SANG JOON
IPC: A61Q19/00
Filed: 2010-02-17
Abstract: PURPOSE: A beta-carboline alkaloid is provided to promote melanogenesis with less side effect and to be applied to a pharmaceutical, neutraceutical, or cosmetic composition. CONSTITUTION: A composition for promoting melanogenesis contains beta-carboline alkaloid or derivative, salt, hydrate, or solvate thereof. The beta-carboline alkaloid is harmaline or harmolol. The composition is used for preventing and treating hypochromatism. A pharmaceutical composition for promoting melanogenesis contains beta-carboline alkaloid, derivative, salt, hydrate, or solvate thereof as an active ingredient. The pharmaceutical composition is manufactured in the form of paste ointment, cream, powder, penetration pad, solution, gel, spray, or suspension.
Patent KR-20110097416-A (KR)
Inventor: LEE JAE WON
IPC: A47J36/02
Filed: 2010-02-25
Abstract: 본 발명에 따른 1회용 그릴 장치는, 금속 재질로 이루어져 표면에 복수 개의 통공을 형성하고 있는 석쇠 시트; 원통 형상으로 이루어져 상기 석쇠 시트를 권취하되, 양 측면에 내측으로 함입 구성된 결합공을 구비한 실린더; 일정 간격을 두고 수평 연장된 상하 1쌍의 수평 연장부와, 상기 수평 연장부 각각의 끝단에서 수직 연장된 좌우 1쌍의 수직 연장부로 이루어져 상기 수평 연장부 및 수직 연장부 사이에 형성된 스페이스에 상기 실린더를 수용하되, 상기 수직 연장부는 상기 스페이스 방향으로 돌출 형성되어 상기 결합공에 결합되는 결합부를 구비하여 상기 실린더를 회전 가능하게 결합하도록 하는 롤러부 및, 상기 수평 연장부 중 어느 하나에서 수직하게 연장 형성된 손잡이부를 구비한 손잡이 겸용 롤러; 상기 석쇠 시트가 안착될 수 있는 공간을 제공하는 것으로, 둘레를 이루는 프레임과 상기 석쇠 시트를 지지하는 연결 프레임을 구비하되, 상기 프레임의 측부에 상기 석쇠 시트의 통공을 끼움 결합할 수 있도록 하는 복수 개의 결합 돌기가 돌출 형성된 불판;을 포함하는 것을 특징으로 한다.
Patent KR-20110098107-A (KR)
Inventor: KIM HYUNG IL
IPC: B82B3/00
Filed: 2010-02-26
Abstract: 본 발명은 함산소불소화 탄소나노튜브를 포함한 PVA/PAAc 나노파이버에 전도성 고분자 코팅층을 형성한 인공근육의 제조 및 응용에 관한 것으로, 본 발명에 따른 함산소불소화 탄소나노튜브를 포함한 PVA/PAAc 나노파이버에 전도성 고분자 코팅층을 형성한 인공근육은 기존의 전도성 고분자만을 코팅한 인공근육에 탄소나노튜브를 첨가하여 보다 전기전도성이 더 향상되고 폴리아닐린의 열적불안정성을 해소시킬 수 있으며, 폴리비닐알콜을 사용하여 인체에도 무해하므로 액츄에이터로서의 용도 뿐만 아니라 인체에 사용되는 인공근육으로서의 가치가 있다.
Patent KR-20110099886-A (KR)
Inventor: KIM BYUNG YUL
IPC: H02G1/00
Filed: 2010-03-03
Abstract: 본 발명은 케이블을 손쉽게 점검할 수 있도록 된 새로운 구조의 케이블 점검용 대차에 관한 것이다. 
본 발명에 따른 케이블 점검용 대차는 구동모터(44)에 의해 케이지(20)를 이동시키는 구동로울러기구(40)가 구비되어, 작업자가 케이블이나  밀지 않아도 자력으로 케이블을 따라 이동할 수 있으므로, 작업이 매우 편리할 뿐 아니라, 많은 수량의 점검장비 또는 보수장비를 휴대할 수 있어서 점검 및 보수가 매우 용이한 장점이 있다. 특히, 상기 케이블에는 3개 이상의 주행로울러기구(30)가 구비되어, 2개의 주행로울러기구(30)를 이용하여 케이블을 따라 이동하다가 장애물(4)에 걸릴 경우, 여유 분의 주행로울러기구(30)를 건너편의 케이블에 걸어 전체 주행로울러기구(30)를 순차적으로 건너편 케이블로 옮겨 결합하므로써, 케이지(20)를 손쉽게 옮길 수 있는 장점이 있다.
Patent KR-20110100540-A (KR)
Inventor: WOO JUNG TAEK
IPC: F03B17/02
Filed: 2010-03-04
Abstract: 본 발명은 파랑으로 물입자의 상하운동이 발생하는 해상에서 연속적인 발전을 할 수 있는 파력발전장치를 제공하는 것을 목적으로 한다. 본 발명은, 발전축을 구비하는 발전기가 설치된 중심부체와; 회전축을 가지고 상기 중심부체를 중심으로 방사상으로 연장되도록 설치되며, 외면에는 상기 회전축을 중심으로 방사상으로 연장되는 다수의 날개가 고정되되 상기 날개는 상기 회전축의 길이방향에 수직으로 작용하는 수력에 대하여 일방향의 회전력을 발생시키도록 구성된 회전체와; 상기 회전체의 회전축과 상기 발전기의 발전축을 연결하여 상기 회전날개의 회전력을 상기 발전축에 전달하는 동력전달수단을 포함하는 파력발전장치를 제공한다.
Patent KR-20110102556-A (KR)
Inventor: CHEONG HYEON SOOK
IPC: C12N1/20
Filed: 2010-03-11
Abstract: 본 발명은 혈전분해 활성을 가지는 아세토박터 속 (Acetobacter sp.) 균주 및 상기 균주 또는 이의 배양액을 유효성분으로 포함하는 혈전분해용 미생물 제제에 관한 것이다.
Patent KR-20110108545-A (KR)
Inventor: LEE WOO YOUNG
IPC: G11C7/22
Filed: 2010-03-29
Abstract: 네거티브 워드라인을 사용하며, 외부 커맨드신호를 디코딩하여 내부 커맨드신호를 생성하는 반도체 메모리 장치에 관한 것으로, 내부전압의 전압 레벨을 검출하여 검출신호를 생성하기 위한 전압검출수단, 외부커맨드신호를 디코딩하여 내부커맨드신호를 생성하기 위한 커맨드디코딩수단, 및 상기 내부커맨드신호에 응답하여 출력되는 최종 내부커맨드신호의 활성화 여부를 상기 검출신호에 따라 제어하기 위한 활성화제어수단을 구비하는 반도체 메모리 장치를 제공한다.
Patent KR-20110050339-A (KR)
Title: Data receiving device for receiving data frames using constellation mapping and data transmission device for transmitting the data frames
Inventor: KWON UI KUN
IPC: H04L27/26
Filed: 2010-03-30
Abstract: PURPOSE: A data receiving device and data transferring device transmitting a data frame are provided to distinguish data frame by constellation mapping schema to each data frame through a data receiving device. CONSTITUTION: A constellation mapping unit(510) applies a first constellation mapping scheme to a first data frame. A transmitting unit(520) transmits the first data frame to a data receiving unit(540). The data receiving unit receives the first data frame. The data receiving unit receives a second data frame from a second transmitting device. The data receiving device distinguishes the second data frame and the first data frame according to each constellation mapping technique.
Patent KR-20100122442-A (KR)
Title: Display apparatus
Inventor: YAMAMOTO TETSURO
IPC: G09G3/30
Filed: 2010-04-19
Abstract: PURPOSE: A display device is provided to improve the normal operation time of a transistor by preventing oxygen from being discharged from a channel material. CONSTITUTION: A pixel array comprises a light emitting device, a driving transistor, and a plurality of pixel circuits. The driving transistor applies a current to the light emitting device. The plurality of pixel circuits has a storage capacity. The light emitting driving unit applies a signal value to the storage capacity of each pixel circuit. The light emitting driving unit emits light to a light emitting device by the signal value. The structure of a transistor includes a gate metal(91) and a gate insulation layer.
Patent KR-20100116142-A (KR)
Title: Webbing take-up device
Inventor: ANDO TAKAYOSHI
IPC: B60R22/46
Filed: 2010-04-21
Abstract: PURPOSE: A webbing winding apparatus is provided to reduce the diameter direction size of a torque limiter and improve the durability of ratchet teeth of the torque limiter. CONSTITUTION: A webbing winding apparatus(10) comprises a winding shaft(20), a motor(66), and a speed reducing tool. The speed reducing tool reduces the speed of rotation of the motor and rotates the winding shaft by the decelerated rotation. A torque limiter(76) of a speed reducing tool has a large-diameter gear(78), a spring member, and a small-diameter gear. The large-diameter gear is rotated by the decelerated rotation of the motor. The spring member is mounted in the large-diameter gear. The winding shaft is rotated by the decelerated rotation of the small-diameter gear. The small-diameter gear engages with the spring member to restrict the relative rotation against the large-diameter gear.
Patent KR-20110121068-A (KR)
Title: Motor driven power steering for vehicle
Inventor: KIM JONG MIN
IPC: B62D3/02
Filed: 2010-04-30
Abstract: PURPOSE: A motor driven power steering system for vehicles is provided to prevent contact between a driving motor and driver in a crash accident and reduce the number of mounting support points with a three-point mounting structure which is combined with horizontal bolts and vertical bolts as a medium. CONSTITUTION: A motor driven power steering(MDPS) system for vehicles includes a driving motor(11). A driving motor is fixed while being combined in an MDPS housing(12) which is combined with a steering column(13). The driving motor generates subsidiary steering torque by receiving control current from an electronic control apparatus. The driving motor is installed by being combined with the MDPS housing in a slanted state in order to not make a parallel state of up and down directions with respect to a cowl cross bar(14) and left and right directions corresponded to the longitudinal direction of the cowl cross bar. The driving motor is installed in order to be projected to the upper side of the steering column. The driving is installed with a slope of 70 to 75 degrees with respect to a horizontal line.
Patent KR-20110122310-A (KR)
Title: Construction method for basement structure without temporary structure
Inventor: YANG SUK GEONG
IPC: E02D29/045
Filed: 2010-05-04
Abstract: PURPOSE: A construction method for a basement structure without a temporary structure is provided to reduce effort, the risk of accidents, and costs by excluding a process for installation and dismantlement of a temporary structure. CONSTITUTION: A construction method for a basement structure without a temporary structure is as follows. An exterior wall(100) of a basement structure is constructed. A column member(200) is inserted to form a column of the basement structure. The inside of the external wall is excavated. An extension member is installed on the inner side of the exterior wall. An exterior wall support member(300) is installed in the horizontal direction on the inner end of the extension member. A beam(400) is installed between the exterior wall support member and the column member. A composite wall(120) and a slab are installed in an area between the exterior wall and the exterior wall support member and an area above the beam through reinforcements arrangement, form installation, and concrete placement.
Patent KR-20110123156-A (KR)
Title: System for food waste disposal
Inventor: JUNG YOUNG HOON
IPC: B09B5/00
Filed: 2010-05-06
Abstract: PURPOSE: A food waste disposal system is provided to remarkably reduce the amount of food waste by automatically measuring the amount of food waste and imposing the processing costs of the food waste on each household. CONSTITUTION: A food waste disposal system comprises a housing(100), a recognition unit(261), an input unit(200), food waste collection boxes(300), a sealing unit(400), a level sensor(600), a drive unit(700), and a discharge unit(800). The recognition unit performs user authentication. The input unit temporarily stores food waste and measures the weight of the food waste. And the input unit discharges the measured food waste to the other side. The sealing unit opens and closes the food waste collection boxes. The level sensor measures the amount of food waste stored in the food waste collection boxes. When the measured amount of the food waste approaches to a standard, the drive unit moves the food waste collection boxes.
Patent KR-20100124677-A (KR)
Title: Method and apparatus of transmittingcontrol information
Inventor: KWON YEONG HYEON
IPC: H04B7/26
Filed: 2010-05-19
Abstract: PURPOSE: A method for transmitting the control information is provided to efficiently transmit the various control information by reusing the DM-RS resources for the control information transmission. CONSTITUTION: A base station transmits the DM-RS(Demodulation Reference Signal) configuration information to a terminal(S601). The base station transmits the DM-RS indication information to the terminal (S602). In case the DM-RS resources pointer is reinterpreted as the control information, the terminal detects the control information from the DM-RS resources pointer(S603). According to the transmitted control information as described above, the terminal performs a control action or an operation required for the terminal operation(S604). The DM-RS signal newly composed is transmitted to the base station(S605).
Patent KR-20110127805-A (KR)
Title: Device for shutter of camera module
Inventor: JEON YEONG SUN
IPC: G02F1/00
Filed: 2010-05-20
Abstract: PURPOSE: A shutter device of a camera module is provided to minimize the generation of a gap caused by the sagging of shutter blades using the magnetic force of a magnet. CONSTITUTION: A shutter device(100) of a camera module comprises a first shutter blade(10) and a second shutter blade(20). One end of the first shutter blade is fixed. The first shutter blade has a first shielding unit for cutting light. A magnetic force generation unit is installed in the shielding unit. One end of the second shutter blade is fixed. The second shutter blade has a second shielding unit. A metal material(21) is spread on a position of the second shutter blade corresponding to the position of the magnetic force generation unit.