baber/WOPTO huggingface dataset:
Patent KR-20080057132-A (KR)
Title: Information processing apparatus, control method, and storage medium
Inventor: FURUYA TOMOYUKI
IPC: G06F9/00
Filed: 2007-09-28
Abstract: An information processing device, and a control method and a storage medium thereof are provided to represent high operability for page printing setting and enable a user to check a modification result of the page printing setting easily. A common setting modification processor(302) receives modification of printing setting of entire printing data through a printing setting window and stores the printing setting as common setting information(304). A common setting UI(User Interface) display unit(301) displays a page pointing window for pointing page information in which the modification of the printing setting is applied when the modification of the printing setting is pointed through the printing setting window of the page. A predetermined page setting modification processor(307) generates exceptional page setting information(308) based on combination between the page information pointed through the page pointing window and the printing setting received through the printing setting window. The printing setting window receives the modification of the printing setting for entire printing data and the predetermined page information in the same window. A sub-window creation unit(309) creates a subwindow different from a common setting user interface and displays it on a monitor.
Patent KR-20080031655-A (KR)
Title: Liquid-crystalline medium
Inventor: WITTEK MICHAEL
IPC: C09K19/04
Filed: 2007-10-04
Abstract: A liquid crystal medium for MLC, TN or STN display devices is provided to realize a very low threshold voltage, high dielectric anisotropy, high clearing point, high resistivity and low birefringence. A liquid crystal medium comprises at least one compound represented by the following formula 1. In formula 1, R0 is a C1-C15 halogen-substituted or non-substituted alkyl or alkoxy radical, wherein at least one CH2 group of the radical is optionally substituted with -C=C-, -CF2O-, -CH=CH-, -O-, -CO-O- or -O-CO- in such a manner that O atoms are not directly bound to each other; X0 is F, Cl, CN, SF5, SCN, NCS, or C6 or lower halogenated alkyl, halogenated alkenyl, halogenated alkoxy or halogenated alkenyloxy radical; each of Y1 and Y2 independently represents H or F; and each of ring A and ring B represents the formulae (a), (b) or (c), wherein in at least one of ring A and ring B represents the formula (b).
Patent KR-20090036031-A (KR)
Title: Method for pattern formation of semiconductor device
Inventor: KIM MYOUNG SOO
IPC: H01L21/027
Filed: 2007-10-08
Abstract: A pattern formation method of the semiconductor device is provided to transfer the uniform pattern type in the lower part by forming the similar etching selectivity between two materials within the block copolymer. The block copolymer layer for self-assembly is formed on the top of the etched layer(100). The block copolymer layer is baked by performing the bake process. The self-assembly pattern(120') is formed by annealing the block copolymer layer. The self - assembly pattern is hardened by irradiating the electron beam in the same pattern. The block copolymer layer comprises the polymer for self-assembly and organic solvent.
Patent KR-20090036342-A (KR)
Title: Manufacturing process of soy sauce having multi functions
Inventor: HUR JUNG GO
IPC: A23L27/50
Filed: 2007-10-09
Abstract: A method for preparing functional soy sauce containing polyphenol from green tea is provided to prevent overgrowth of yeast generated during the period the soy sauce is stored, thereby improving marketability. A method for preparing functional soy sauce containing polyphenol from green tea comprises the following steps of: pulverizing green tea to become powder; and heating soy sauce and cooling down to a temperature range of 30-40°C; and uniformly spraying the pulverized green tea powder to the soy sauce so that the polyphenol comes off from the green tea powder. The green tea is pulverized to become 2~4um in size and sprayed to the soy sauce at a temperature of 35~36°C. The 1g of green tea powder is sprayed to the 1litter of soy sauce.
Patent KR-20090038137-A (KR)
Title: The publishing together system and the method for publishing on demand together
Inventor: CHAE JONG JUN
IPC: G06Q50/10
Filed: 2007-10-15
Abstract: A multilateral publishing service system and a publishing method thereof are provided to divide the book which is made by a plurality of persons connecting to a virtual space on the Internet into parts, thereby enabling each participant to prepare the divided parts. A participant terminal(10) registers photos which a plurality of participants photograph or texts which they prepare in a virtual book on the Internet. A plurality of judge terminals(20) confirms the registered photos or texts, and then determines whether to register or reject the confirmed things in the virtual book. A management server(30) makes and operates the virtual book on the Internet, registers the photos or texts in divided virtual books and show them on the judge terminals. The management server receives the judgment results from the judge terminals and then transmits the results to the participant terminal.
Patent KR-20090038736-A (KR)
Title: Bamboocharcoal with ventilation holes and a method of producing the same
Inventor: CHOE GANG SEOP
IPC: C10L5/44
Filed: 2007-10-16
Abstract: Perforated bamboo charcoal and a method of manufacturing the same are provided to remove charcoal fire materials or contaminants without discharging the contaminants and to perform combustion easily. A method of manufacturing perforated bamboo charcoal(10) comprises the following steps of: obtaining to a raw material of nature bamboo of which inside is full; forming bamboo charcoal by using the natural bamboo as a carbonization material; cutting the formed charcoal for use; punching the charcoal; and drying the charcoal. A process for making the charcoal includes a step for forming a central penetration hole(12) to a longitudinal direction of a bamboo charcoal body(11) using a hole tool and a step for forming a plurality of connection holes(13) to a traverse direction of the bamboo charcoal body.
Patent KR-20090039222-A (KR)
Title: Plasma display apparatus
Inventor: OH JIN YOUNG
IPC: H01J17/49
Filed: 2007-10-17
Abstract: A plasma display device including a plasma display panel and a driving unit is provided to improve image quality by reducing the generation of a noise. A plasma display apparatus includes a plasma display panel and a driving unit. The plasma display panel displays an image by a plurality of frames including a plurality of subfields. The driving unit equalizes one subfield of a plurality of subfields of a second frame among the plurality of frames with one subfield of a first frame which is continuous with the second frame and is arranged before the second frame or one subfield of a third frame which is continuous with the second frame and is arranged after the second frame. The first frame includes the 1-1 subfield group(A) and the 1-2 subfield group(B) including one or more subfields. The second frame includes the 2-1 subfield group(C) and the 2-2 subfield group(D) including one or more subfields. The 2-1 subfield group is identical to the 1-1 subfield group or the 1-2 subfield group.
Patent KR-20090040616-A (KR)
Title: Linear generator system
Inventor: LIM HEE SU
IPC: F02B75/28
Filed: 2007-10-22
Abstract: A linear generator system is provided to discharge the exhaust gas outside by the fuel-air mixture flowed in the combustion chamber as the exhaust valve is located on the upper wall of the combustion chamber. A linear generator system comprises a linear generator(100) including a stator(110) and a slider(130) which is reciprocated in the stator, and two stroke free-piston engines(200) installed on both sides of the linear generator. An intake port(210) of the free-piston engine is connected to a chamber(112) at the opposite side of the linear generator via a connection pipe(140). An intake valve(160) is installed in a generator housing forming the chamber, and opens or closes by the pressure difference between the chamber and the outside. The free-piston engine includes an injector(220) installed on the intake port, an exhaust valve(230) installed on the upper wall center of the combustion chamber, and a spark plug(240) installed on the side of the exhaust valve.
Patent KR-20090040947-A (KR)
Inventor: SIM SANG HYUNG
IPC: A63H27/26
Filed: 2007-10-23
Abstract: 본 발명은 교재용이나 놀이용으로 사용되는 물로켓을 발사하기 위한 발사대에 관한 것으로, 특히 전체 외형을 안정적으로 구성하여 발사할 때 흔들림이 없고 정확한 비행이 이루어지도록 한 물로켓의 발사시스템에 관한 것이다. 
     물로켓(R)을 발사하기 위하여, 지면에 지지되는 다리부재(F)와,  물로켓(R)을 장착하고 발사하기 위한 발사부재(H)로 구성된 공지의 발사시스템에 있어서. 
     상기 다리부재(F)는 길이가 긴  각각의 다리체(10)의 상부에 지지프레임(20)을 고정하며,  상기 발사부재(H)는 좌우조절구(30)와 상하조절구(40)를 상하조절레버(50)에 의하여 고정 및 회동 되도록 장치하며, 상기 다리부재(F)와 발사부재(H)를 좌우조절레버(60)에 의하여 고정 및 회동 되도록 장치하여 구성된 것이다. 
       
     물로켓, 발사대, 과학교재
Patent KR-20090041538-A (KR)
Title: Audio replaying apparatus and controlling method thereof
Inventor: PARK NAM KYU
IPC: G11B20/10
Filed: 2007-10-24
Abstract: An audio reproducing apparatus and a controlling method thereof are provided to facilitate controlling center frequency, the gain value, and bandwidth of each band of the equalization filter through a touch screen mode. An audio reproducing apparatus comprises: an equalization filter part(150) controlling the volume of audio signals, which are being reproduced according to the operation parameter which is set up from user, according to one or more frequency bands; a display part(120) displaying a graphic equalizer screen to set up the operation parameter of the equalization filter part; an input part(110) in which the operation parameter is set up on the graphic equalizer screen; and a controller(130) controlling the equalization filter part to output the volume of the audio signals classified by one or more frequency bands according to the set up operation parameter.
Patent KR-20080039307-A (KR)
Title: Method and system for switching elementary streams on a decoder with zero delay
Inventor: ROSS TIM
IPC: G11B20/10
Filed: 2007-10-30
Abstract: A method and a system for switching elementary streams on a decoder with zero delay are provided to enhance the switching speed between streams of data by queuing a portion of at least one stream of data and decoding other stream of data after decoding the portion of the stream of data. A method of decoding data comprises steps; queuing at least one first stream(105d(5)) of data; receiving a command to decode a second stream(105d(7)) of data instead; after receiving the command, decoding a portion of the first stream of data, wherein the portion of the first stream of data was queued before receiving the command; and decoding the second stream of data after decoding the portion of the first stream of data.
Patent KR-20090045601-A (KR)
Inventor: SONG BU GEUN
IPC: B62D43/00
Filed: 2007-11-02
Abstract: 본 발명은 이중고정수단으로 결합된 체인타입의 예비 타이어의 결합구조에 관한 것으로, 특히 고정 프레임과 예비 타이어를 고정결합할 수 있도록 이중록킹 결합 수단을 형성하되,  
     상기 이중록킹결합수단은 캐리어와 예비 타이어를 나사결합하고, 상기 캐리어와 결합된 예비 타이어를 고정 프레임의 일측과 나사결합하며, 상기 고정 프레임의 타측에 예비 타이어를 결속을 강하게 하기 위하여 이탈 방지부를 나사결합하고,  
     상기 예비 타이어가 결합된 고정 프레임을 차량의 후미 하부에 장착된 리어 프레임과 이중고정수단으로 결합형성하되, 
     상기 이중고정수단은, 고정 프레임의 하부를 힌지를 관통시켜 고정 및 회전할 수 있게 상,하부에 관통홀이 형성된 상,하 고정부를 형성하고, 상기 고정 프레임과 힌지로 고정된 상,하 고정부를 고정핀을 이용하여 고정 또는 회전할 수 있도록 좌,우 고정부를 결합구성하므로서, 
     차량의 리어 게이트를 개,폐할 수 있도록 일측의 고정핀을 이탈시켜 타측의 고정핀를 중심으로 고정 프레임을 좌,우로 회전시켜 쉽게 개,폐할 수 있으며, 상기 일측의 고정핀와 고정 프레임을 하부를 고정 또는 회전할 수 있도록 상부 힌지를 이탈시켜, 상기 고정 프레임을 이탈 형성하기 때문에 특히 전시에서 작업자는 단독으로 예비 타이어를 차량의 후미에 장착하여 함께 탑승한 다른 근무자는 경계 근무로 생명을 연장시킬 수 있으며, 쉽게 타이어의 교체가 가능하여 타이어의 교체 시 간을 줄일 수 있고, 또한 이중록킹결합수단으로 인하여 타이어의 무게가 증가하더라도 안정적으로 예비 타이어를 차량의 후미에 장착할 수 있어서 일반 차량의 후미에 예비 타이어를 장착할 경우에 쉽게 일반인들이 장착할 수 있도록 형성된 이중 고정수단으로 결합된 체인타입의 예비 타이어의 결합구조에 관한 것이다. 
       
     리어 프레임, 고정 프레임, 이중고정수단, 이중록킹결합수단, 예비 타이어, 힌지, 고정핀, 지지 프레임, 중간 프레임, 보강부, 멈춤부, 회전 방지부
Patent KR-20090049233-A (KR)
Inventor: KIM HWAN MOOK
IPC: C12Q1/68
Filed: 2007-11-13
Abstract: 본 발명은 유전자 변형 수박의 정성 분석방법에 관한 것으로, 구체적으로 수박의 내재양성 대조 유전자(이하, '내재유전자')를 이용하여 유전자변형 수박을 특이적으로 검출하는 정성 분석방법에 관한 것이다.  본 발명의 정성 분석방법은 CGMMV-cp가 도입된 LM-수박을 종특이적으로 검출하는데 이용될 수 있으며, 특히  DIP-1  유전자는 LM-수박의 유전자분석에서 내재유전자로 유용하게 이용될 수 있다. 
       
     LMO, 내재유전자, 유전자변형 수박
Patent KR-20090049629-A (KR)
Inventor: KWON DO HYEONG
IPC: B23Q5/22
Filed: 2007-11-14
Abstract: 본 발명은 공작기계의 어태치먼트 인덱스 장치에 관한 것이다. 
     본 발명의 일 실시예에 따른 공작기계의 어태치먼트 인덱스 장치는, 일측에 제1 클램핑 유로(11)와 제1 언클램핑 유로(12)가 형성되고, 하측 측방에 제2, 제3 클램핑 유로(13)(14)와 제2 언클램핑 유로(15)가 형성되는 메인 바디(10a), 메인바디(10a)의 내측에 배치되고 센터 샤프트(110)의 동력을 메인 스핀들(120)에 전동하며 제1 클램핑 유로(11)와 제1 언클램핑 유로(12)에 공급되는 유압에 의해 구동되어 센터 샤프트(110)의 동력을 인덱스 하우징(330)에 전동하는 동력단속부, 메인바디(10a)의 하측에 배치되고 제2 클램핑 유로(13)와 제2 언클램핑 유로(15)에 공급되는 유압에 의해 인덱스 하우징(330)을 클램핑 또는 언클램핑하는 인덱스 하우징 클램핑부 및 인덱스 하우징(330)의 하측에 고정되어 메인 스핀들(120)의 축 방향과 평행하게 공구가 장착되는 제1 공구 장착대(210)와 메인 스핀들(120)의 축 방향과 직각방향으로 공구가 장착되는 제2 공구 장착대(220)로 구성하는 인덱스 바디(200)를 포함한다. 
       
     공작기계, 인덱스, 어태치먼트, 5면 가공
Patent KR-20090052640-A (KR)
Inventor: LEE CHUNG WOO
IPC: G11B5/74
Filed: 2007-11-21
Abstract: 본 발명은 정보 저장용 기록 매체 및 정보 저장 장치에 관한 것으로, 정보 저장용 기록 매체에 트랙 정보 패턴 및 섹터 정보 패턴을 형성하여, 정보 저장 장치에서 정보를 기록할 때, 트랙 정보 패턴 및 섹터 정보 패턴을 감지하여 트랙 정보를 알 수 있으므로, 정보 기록 속도를 향상시킬 수 있는 장점이 있다. 
     또한, 본 발명은 기록 매체의 트랙 정보, 섹터 정보, 트래킹 위치 에러 정보를 감지할 수 있으므로, 기록 매체의 전 영역의 위치 정보를 파악할 수 있는 것이다. 
     
     기록매체, 트랙, 섹터, 트래킹, 기록, 패턴
Patent KR-20090055227-A (KR)
Title: Toggle amplifier damper system
Inventor: LEE YOUNG JE
IPC: E01D19/00
Filed: 2007-11-28
Abstract: A toggle amplifier damper system is provided to reduce vibration by amplifying the vertical vibration in the horizontal direction. A toggle amplifier damper system comprises a fixing bracket(100) which is fixed to the lower side of a girder(10) and has a coupling hole on either side, left and right amplifier levers(200,201) which are hinged to the coupling holes of the fixing bracket, left and right low levers(300,301) which are hinged in the middle of the respective left and right amplifier levers, a base plate(400) which is hinged with the other end of each low lever, a friction damper(500) which is hinged with the other ends of the left and right amplifier levers to convert the vertical vibration transmitted from the girder into the horizontal vibration, and a friction pad which is equipped between the left and right amplifier levers and the left and right low levers.
Patent KR-20080049646-A (KR)
Title: Ionization device
Inventor: SHIMADA TOMONORI
IPC: H01T19/00
Filed: 2007-11-29
Abstract: An ionization device is provided to control static electricity in the air or to remove electricity of an electrically-charged work. An ionization device includes an electrical circuit unit and a main body casing(10). A base plate(11) is provided within the main body casing. The base plate vertically partitions a space inside the main body casing. The base plate partitions the space inside the main body casing into a first space(SP1) and a second space(SP2). A casing member is housed in the first space that is an upper space. The electrical circuit unit for generating heat is housed in the second space that is a lower space. Even when a protective material or filling material within the main body casing is gasified, the outflow of the gasified material into the lower space is suppressed.
Patent KR-20090055752-A (KR)
Inventor: CHOI BOK YI
IPC: A23L19/00
Filed: 2007-11-29
Abstract: A method for preparing sliced and seasoned cuttlefish is provided to reduce salinity and to prevent the decay of the cuttlefish by mixing acetic acid, refined salt and radish preserved with salt. A method for preparing sliced and seasoned cuttlefish comprises the following steps of: finely chopping salted and fermented cuttlefish(S110); and mixing 48-50wt% of radish preserved with salt and 9-13wt% of seasonings with 39-41wt% of chopped cuttlefish(S400). A method for preparing the radish preserved with salt comprises the following steps of: mixing 1-2wt% of acetic acid, 2-4wt% of refined salt, 0.1-0.5wt% of steviten mild and 8-10wt% of purified water on a total weight basis of the radish preserved with salt(S210); and immersing 85-88wt% of chopped radish in purified water. The seasonings contain 1-2wt% of garlic, 0.2-0.6wt% of ginger, 5.6-7.2wt% of red pepper and 2.2-3.2wt% of roasted sesame on a total weight basis of the sliced and seasoned cuttlefish.
Patent KR-20090056023-A (KR)
Title: Bio-barriers, radioactive waste disposal facilities and methods for retarding uranium movement in subsurface environment
Inventor: LEE SEUNG YEOP
IPC: G21F9/34
Filed: 2007-11-29
Abstract: A bio-barriers, radioactive waste disposal facilities and methods are provided to restrict the movement of uranium effectively from a high-level waste disposal tunnel by changing uranium oxide into reduced uranium. A radioactive waste disposal facility comprises an underground radioactive waste disposal tunnel(110) and a barrier(120), and a biological barrier. The underground radioactive waste disposal tunnel has more than one storage modules(130) which stores a canister(131). The biological barrier, made of a microorganism(121), is formed at the wall of the radioactive waste disposal tunnel. The microorganism surviving in the underground of 200m-500m restores 6-varant uranium into 4-varant uranium.
Patent KR-20090058173-A (KR)
Title: Liquid crystal display panel
Inventor: SEO HYEON JIN
IPC: G02F1/1339
Filed: 2007-12-04
Abstract: An LCD(Liquid Crystal Display) panel is provided to prevent an alignment film of a TFT(Thin Film Transistor) substrate from be damaged when a ball spacer is moved. An LCD panel includes a TFT substrate(100), a color filter substrate(300), an LCD layer(500), a ball spacer, alignment film and a buffer film. The TFT substrate faces the color filter substrate, and the LCD layer is formed between the TFT substrate and the color filter. The ball spacer is formed on the TFT substrate, and the buffer film is formed on the TFT substrate of the alignment film to be placed on the ball spacer.
Patent KR-20090058728-A (KR)
Title: Test socket for semiconductor package
Inventor: JUN JIN GUK
IPC: H01L21/66
Filed: 2007-12-05
Abstract: A socket for testing a semiconductor package is provided to improve test efficiency by testing a plurality of semiconductor packages in one socket. A socket for testing a semiconductor package includes an adapter(10), an adapter board(20), and a housing(30). The adapter has single or plural up openings for receiving the single or plural semiconductor packages. The adapter board is combined in the lower part of the adapter. The housing receives the adapter and the adapter board. The adapter and the adapter board are integrated.
Patent KR-20090060878-A (KR)
Title: Parallel light emitting diode uniform current driving device
Inventor: AHN BYUNG HAK
IPC: H05B37/00
Filed: 2007-12-10
Abstract: A parallel LED constant current driving circuit is provided to protect a transistor device and a LED device by lowering a drain voltage of a transistor connected to a LED array. A parallel LED constant current driving circuit(300) includes a DC-DC converter part(310), a LED array part(320), a current mirror part(330), and a feedback part(340). The DC-DC converter part converts a supply voltage into a DC output voltage according to a feedback voltage. The LED array part includes a plurality of LED arrays. The DC output voltage of the DC-DC converter part is applied to one end of the LED array. The current mirror part includes a plurality of current mirrors. The current mirror is connected to the other end of the LED array. The feedback part feeds back a voltage of the other end of the LED array to the DC-DC converter part.
Patent KR-20090062279-A (KR)
Title: Super cap system discharge device of fuel cell powered vehicles and method thereof
Inventor: CHANG SAE KWON
IPC: B60L11/18
Filed: 2007-12-12
Abstract: A super cap system discharge device of a fuel cell powered vehicle and a discharging method are provided to secure safety of a worker by discharging a high voltage of a super cap system. A super cap system discharge device of a fuel cell powered vehicle includes a discharge signal sensing unit(100), a super cap voltage sensing unit(110), a control unit(120), a fuel cell stack relay(122), a super cap relay(124), a discharge relay(126), and an alarm unit(128). The discharge signal sensing unit senses a discharge command signal transmitted from a driver or a worker. The super cap voltage sensing unit senses a super cap voltage. The control unit receives a discharge command signal from the discharge signal sensing unit. The control unit controls a super cap voltage sensed from the super cap voltage sensing unit. The fuel cell stack relay drives a motor according to a driving control signal of the control unit. The super cap relay discharges the super cap according to an inputting state of the driving control signal of the fuel cell stack relay. The discharge relay supplies the discharge command signal from the super cap relay. The alarm unit reports a discharge-starting state and a discharge-completing state of the super cap relay controlled by the control unit.
Patent KR-20090063656-A (KR)
Inventor: LEE DONG JOON
IPC: H01L21/76
Filed: 2007-12-14
Abstract: A method for fabricating a device isolation film is provided to form a trench by using a spacer formed in an inner sidewall of a pad nitride film pattern. A pad oxide film(202) and a pad nitride film(204) are successively formed in an upper part of a semiconductor substrate(200). The photoresist is coated in the upper part of the pad nitride film. The photoresist pattern opening a predetermined region of the pad nitride film is formed by performing a photograph and development process. A pad nitride film pattern is formed by selectively etching the pad nitride film. The photoresist pattern is removed through a strip process. The pad nitride film pattern is reclaimed by the insulating layer for a spacer. The spacer is formed in the inner sidewall of the pad nitride film pattern by performing the dry etching process.
Patent KR-20090066486-A (KR)
Title: Method of manufacturing semiconductor device
Inventor: SUNG MIN CHUL
IPC: H01L21/8247
Filed: 2007-12-20
Abstract: A manufacturing method of a semiconductor device is provided to reduce a manufacturing cost of the semiconductor device by using a general wafer instead of an expensive SOI(Silicon On Insulator) in a manufacturing process of the semiconductor device having a FBC(Flexible Body Cell) structure. A trench is formed by etching a semiconductor substrate(300). A protective layer is formed on a sidewall of the trench. An oxidation process is performed to oxidize the semiconductor substrate having the protective layer formed on the sidewall of the trench. A plurality of buried oxide layers(312) are formed within the semiconductor substrate of the bottom surface of the exposed trench and the active area of the semiconductor substrate extended in a horizontal direction. The buried oxide layers are connected with each other.
Patent KR-20090068055-A (KR)
Title: Bi-polar type electrostatic chuck of semiconductor equipment
Inventor: HAM HYO SUNG
IPC: H01L21/687
Filed: 2007-12-22
Abstract: A bipolar type electrostatic chuck of semiconductor manufacturing equipment is provided to prevent a breakdown of a wafer and to increase a yield by grasping easily a deviation of chucking voltages. A wafer(20) is loaded on an upper surface of an electrostatic chuck(10). A first electrode(31) is formed at one part of the upper side of the electrostatic chuck. A second electrode(32) is formed at the other part of the upper side of the electrostatic chuck. A first output terminal(41) applies a positive voltage or a negative voltage to first electrode. A second output shift(42) applies the negative voltage or the positive voltage to the second electrode. An AC box(40) includes the second electrode and a grounding output terminal(43). A HV power supply(50) is connected to the AC box in order to supply the power to the AC box. A first voltage measurement unit(61) is connected to a first output terminal and the grounding output terminal of the AC box. A second voltage measurement unit is connected to a second output terminal and the grounding output terminal of the AC box.