baber/WOPTO huggingface dataset:
Patent KR-20180056000-A (KR)
Inventor: PARK JIN SEONG
IPC: H01L51/10
Filed: 2016-11-17
Abstract: Provided is a fabrication method of a phototransistor with high electron mobility. The method comprises the steps of: forming a gate insulating film on a substrate; forming a first active pattern including zinc (Zn), oxygen (O), and nitrogen (N) compounds on the gate insulating film; forming a source electrode and a drain electrode on one side and the other side of the first active pattern; and forming a second active pattern disposed on the first active pattern to be in contact with the first active pattern and including an organic material.
Patent KR-20180057262-A (KR)
Inventor: NO EUN GYEONG
IPC: G06Q40/00
Filed: 2016-11-22
Abstract: The present invention relates to an accounting system using receipts, comprising: a receipt image collecting unit (110) receiving receipt images obtained by scanning or capturing real receipts collected during economic activities from a user terminal (200) through a wired/wireless communication network; a character recognizing unit (120) operating a character recognition program to recognize characters contained in a receipt image collected by the receipt image collecting unit (110) and generating a text file; a selected item character string extracting unit (130) setting a representative name item selected by the user terminal (200) or a receipt management server (140) as a predetermined selected representative name item, converting items of the receipt contained in the text file into representative name items, and extracting character strings corresponding to the predetermined selected representative name item and the selected representative name item among the representative name items; and a receipt management server (140) storing the receipt image collected by the receipt image collecting unit (110) as a proof, and the character string corresponding to the selected representative name item and the selected representative name item, which is extracted by the selected item character string extracting unit (130), as a receipt data file corresponding to the receipt image. The present invention is able to easily and automatically extract information required for managing contact information of individuals or companies.
Patent KR-20180057325-A (KR)
Inventor: YOO DONG HUN
IPC: G01L5/06
Filed: 2016-11-22
Abstract: The present invention relates to an apparatus for testing durability of a wire rope. The apparatus includes: a body frame; a first sheave fixedly installed on one side of the body frame; a second sheave provided below the first sheave; a rod device installed below the second sheave and slidably moved up and down; a weight provided under the rod device; a wire rope connected to the first sheave, the second sheave, and the rod device; and an operating device connected to the wire rope to pull or release the wire rope. As described above, according to the present invention, the wire rope is connected to each of the sheaves and the rod device, and the operating device is provided to pull or release the wire rope. The rod device is slidably moved up and down in accordance with the operation of the operating device so that durability of the wire rope can be tested with a simple structure by checking tensile strength of the wire rope. Thus, the efficiency of a durability test of the wire rope can be improved and the operation cost for the durability test can be minimized and the test can be safely performed.
Patent KR-20180058437-A (KR)
Inventor: HAN HYO KYUNG
IPC: C09K15/20
Filed: 2016-11-24
Abstract: The present invention relates to a composition of a freezing-drying protection agent for protein including aminoclay, which is used as a protection agent for stabilizing a protein formulation during freeze-drying. According to the present invention, the composition of a freezing-drying protection agent for protein including aminoclay protects protein from a freeze-drying process stress, enhances physical stability of a freeze-dried protein formulation, reduces degeneration of the protein formulation, and remarkably enhances thermal stability of the protein formulation in comparison with a conventional freeze-drying protection agent, so as to enhance a long term preservation stability, thus being able to maintain structural stability of the protein formulation. Accordingly, the composition of a freezing-drying protection agent for protein including aminoclay is able to be usefully used as a new freeze-drying protection agent to stabilize a protein formulation. According to the present invention, the aminoclay is a mixture of 3-aminopropyltriethoxysilane (APTES) and a metal cation.
Patent KR-20160140538-A (KR)
Title: Prevention or Treatment for ischemic stroke using miR-33-5p
Inventor: PARK EUN MI
IPC: A61K31/713
Filed: 2016-11-25
Abstract: The present invention relates to prevention or treatment of ischemic stroke using tissue protection miRNA regulated by ischemic pretreatment. According to the present invention, a medicine which increases protection effect of brain tissue can be developed.
Patent KR-20180059967-A (KR)
Inventor: LEE OK SOON
IPC: E04G3/32
Filed: 2016-11-27
Abstract: According to the present invention, a locking device for a gang form fixing bolt comprises: a pair of a left and a right locking cover installed on a front surface of a fixing bolt of a gang form in a structure of enclosing a removal head of the fixing hold; a rotary shaft bolt coupled through a rotary shaft bolt insertion hole of the pair of the left and the right locking cover to restrict rotation; a double torsion spring which is wound on the rotary shaft bolt, and includes a first and a second elastic protrusion 1 and a first and a second elastic protrusion 2 to apply an elastic force to an upper wing unit of the left and the right locking cover to maintain the left and the right locking cover in a locked state; a flat fixing member fixed on one end of a rear surface of the rotary shaft bolt by a nut or welding and fixed on a vertical member of the gang form by a plurality of direct connection pieces or welding; a pair of symmetric operation knobs to be fixed on an insertion hole of the left and the right locking cover by a bolt and a nut or welding; an operation bolt coupled through an operation bolt insertion hole of the pair of symmetric operation knobs; a pair of connection members which connect and couple the operation bolt and a pulling ring at a right angle, have a cylindrical shape, and are symmetrically installed; a reverse U-shaped pulling ring penetrating a pulling ring insertion hole of the symmetrically installed connection members to be integrally coupled to the operation bolt and the connection members by a force by which the operation bolt is bolt-coupled to nut threads of the connection members to press; and a pair of safety stickers installed on a front cover unit of the left and the right locking cover. The locking device for a gang form fixing bolt can prevent an accident which can occur while using the gang form.
Patent KR-20180061561-A (KR)
Inventor: RYU JONG GIL
IPC: H01L51/52
Filed: 2016-11-29
Abstract: According to an embodiment of the present invention, a display device with improved lateral strength comprises a display panel including first and second surfaces opposite to each other; at least one first auxiliary layer provided on the first surface of the display panel; at least one second auxiliary layer provided on the second surface of the display panel; and a side surface reinforcing material wrapping cut surfaces of the display panel, the first auxiliary layer, and the second auxiliary layer.
Patent KR-20180063542-A (KR)
Inventor: KWON KI SEOK
IPC: G06F9/30
Filed: 2016-12-02
Abstract: Disclosed is a vector processor which can increase a processing speed and energy efficiency. The vector processor comprises: a plurality of register files which are arranged on a plurality of single instruction multiple data (SIMD) lanes, store a plurality of data, and output input data used in a current cycle among the plurality of data; a shuffle unit to receive a plurality of input data outputted from the plurality of register files, and shuffle the received plurality of input data to correspond to the plurality of SIMD lanes to output the shuffled input data; and an instruction execution unit to receive the input data, outputted from the shuffle unit, to perform parallel operations.
Patent KR-20180065119-A (KR)
Title: Receiver for data communication
Inventor: KIM CHUL WOO
IPC: H04B1/16
Filed: 2016-12-07
Abstract: The present invention provides a receptor for data communication based on mobile industry processor interface (MIPI) standard, which enables semi-custom design. The receptor for data communication comprises an input buffer receiving first to third input signals and differentially comparing the first input signal to the second input signal, the second input signal to the third input signal, and the third input signal to the first input signal to provide first to third comparison signals; a serial and parallel transformer parallelizing the first to third comparison signals at a predetermined transformation ratio to provide first to third signals; D-flipflop delaying the last first to third signals among the first to third signals by a predetermined time to output the same; and a symbol decoder receiving the first to third signals provided by the serial and parallel transformer and the delayed last first to third signals provided by the D-flipflop to decode first to third symbol signals corresponding to a current state and a previous state of the first to third signals based on a predetermined state diagram.
Patent KR-20180068165-A (KR)
Inventor: CHUN DAE HWAN
IPC: H01L29/423
Filed: 2016-12-13
Abstract: A semiconductor device according to an embodiment of the present invention includes an n+ type silicon carbide substrate, an n- type layer, a plurality of first trenches, a p type region, a p+ type region, an n+ type region, a gate electrode, a source electrode, and a drain electrode. The plurality of first trenches form a rectangular unit cell on a plane. The p+ type region is located in the central part of the unit cell. The plurality of first trenches are separated from each other and are located on the rectangular side of the unit cell on the plane. The n+ type region is located on the outside of the p type region and the outside of the first trench on the plane in the unit cell. Accordingly, the present invention can improve the channel density of the semiconductor device.
Patent KR-20180068193-A (KR)
Inventor: KIM JEONG HYEON
IPC: B29C70/46
Filed: 2016-12-13
Abstract: Disclosed is an automotive door structure. In an embodiment of the present invention, an inner panel made of a metal material and an outer panel made of a CFRP material can be combined with each other to have appropriate competition stiffness. Further, according to the present invention, it is possible to prevent a sealer from leaking during a joining process, thereby preventing a poor appearance of a door. The present invention comprises: the outer panel made of the CFRP material and having a hemming unit; and the inner panel which is made of the metal material and inserted into the hemming unit of the outer panel. Therefore, the present invention can tilt the automotive door and increase rigidity of assembly.
Patent KR-20180070292-A (KR)
Title: Automatic Pancreaticojejunostomy Stent
Inventor: LEE SEUNG DUK
IPC: A61B17/11
Filed: 2016-12-16
Abstract: The present invention relates to an automatic pancreaticojejunal anastomosis stent connected to a stent and a stent without being anastomosed to a pancreatic duct opening unit by a stitching fiber and only using the stitching fiber drawn to the outside of pancreas, thereby simplifying a surgery process and reducing a level of difficulty. The present invention forms a stepped unit which is radially spread by folding a flexible unit of a stent inserted into pancreaticojejunal to the outside when the stitching fiber is pulled. The present invention easily anastomoses by allowing the stepped unit to support the inside of the pancreaticojejunal, and adhering to the pancreas and the pancreaticojejunal. The present invention is provided to allow a support pipe to seal a slit area of the flexible unit in the inside of the stent, thereby preventing leakage of gall to an anastomosis part after surgery, and allowing the strong support pipe to fix the anastomosis part. The present invention is provided to safely and easily perform pancreaticoduodenectomy which is the most difficult operation in surgery, thereby reducing complications after surgery of a pancreatic cancer patient and a bile duct cancer patient, and increasing a patient survival rate by rapidly performing a cancer treatment.
Patent KR-20180071821-A (KR)
Inventor: LEE KYU HEON
IPC: G09G3/34
Filed: 2016-12-20
Abstract: A display device is disclosed. The display device includes a display panel, a backlight unit for emitting light to the display panel, a backlight driving part for driving the backlight unit, a storage part for storing a gamma curve indicating a relationship between the gradation of an input signal inputted to the display panel and the luminance of an output signal, and a processor for reducing the brightness of light emitted to the display panel by a difference between a first output luminance value, which is the maximum luminance value of the display panel, and a second output luminance value of the input signal. Here, the second output luminance value may be an output luminance value corresponding to the maximum gradation value of the input signal in the gamma curve. It is possible to drive a backlight with global dimming while maintaining the gamma curve.
Patent KR-20180074885-A (KR)
Inventor: DONG KWANG HO
IPC: B62K11/02
Filed: 2016-12-23
Abstract: The present invention relates to an electric kickboard having an auxiliary footrest, comprising: a main board having a flat upper surface, having a handle including a front wheel installed on one side of a front side to be able to rotate, and having a rear wheel installed on one side of a rear side to be able to rotate, so as to allow a user to get on; the auxiliary footrest attached to one side of the main board to expand the area of the main board so as to rest a user′s foot; and a connection means to allow the auxiliary footrest to be attached to one side of the main board. Accordingly, an additional configuration capable of resting the user′s foot is added to one side of the electric kickboard to allow stable traveling in various postures, such as sitting, standing, and the like, and load a small load, thereby providing an effect of enhancing user convenience.
Patent KR-20170077818-A (KR)
Inventor: MATSUURA RYUICHI
IPC: G03F7/027
Filed: 2016-12-23
Abstract: 착색제 (A), 수지 (B), 중합성 화합물 (C) 및 중합 개시제 (D) 를 포함하고, 
착색제 (A) 는, C. I. 피그먼트 블루 16 및 C. I. 피그먼트 그린 59 를 포함하는, 착색 감광성 수지 조성물.
Patent KR-20180075902-A (KR)
Inventor: GO DEAG YOUNG
IPC: B66C9/14
Filed: 2016-12-27
Abstract: Disclosed is a travelling braking apparatus for an overhead crane, easy to check a replacement time of a brake liner part. According to the present invention, the travelling braking apparatus for an overhead crane comprises: a plate part; a first support part fixed and disposed to the plate part; a second support part disposed on a side opposite to the first support part and coupled to the plate part to be able to move; a gap adjustment part coupled to the first and second support parts, and adjusting a gap between the first and second support parts; a brake drum part disposed between the first and second support parts; the brake liner part closely adhered to the outer circumferential surface of the brake drum part to provide braking force to the brake drum part and having a plurality of stages, wherein each stage has a different mark to be visually discriminated; and a liner base part supporting the brake liner part, and coupled to the first and second support parts.
Patent KR-20180076044-A (KR)
Inventor: LEE NAM GIL
IPC: G01N21/59
Filed: 2016-12-27
Abstract: The present invention relates to a tire management system for a tire warehouse by reading RFID of a PCR-LTR tire to which an RFID tag is attached and a method for the same. The tire management system for a tire warehouse includes: a portable modem including the shape of a gate or a table, wherein the portable modem is for RF communications by network mobile communications with a warehouse management RFID server; a portable terminal connected to the modem and communicating with the warehouse management RFID server; an RFID antenna installed on both side walls of the gate to detect an RFID tag installed on a tire; a reader I/O board system receiving a signal from the RFID antenna and transmitting the received signal to the portable terminal; a sensor unit including a photo sensor for detecting gate passing of the system in the tire to be inspected, wherein the sensor unit includes a reflection body as a light collection unit receiving an infrared signal of the photo sensor; and a battery supplying DC power to the portable terminal, the reader I/O board system, and the sensor unit.
Patent KR-20180076134-A (KR)
Inventor: KIM SUNG HAN
IPC: H01G11/70
Filed: 2016-12-27
Abstract: The present invention relates to a method of manufacturing a porous collector capable of forming a plurality of through-holes having a fine diameter by forming a groove in a surface of a metal foil by using a metal mold, and etching to open an end of the groove. The method comprises the steps of: bonding a buffer film to a surface of one side of the metal foil; stamping a surface of the other side of the metal foil by using the metal mold so that a plurality of grooves are formed in the metal foil when the buffer film is bonded; etching the metal foil by using an etching solution so that an end of each of the grooves is opened to form a through hole when the stamping is completed; and removing the buffer film from the metal foil after the etching is completed.
Patent KR-20180076735-A (KR)
Inventor: SHIN JONG GYUN
IPC: B60R25/01
Filed: 2016-12-28
Abstract: The present invention relates to an apparatus and a method for controlling an opening height of a power tail gate, capable of estimating the height of a driver based on previously stored IMS information and automatically sets the maximum opening height of the power tail gate in accordance with the estimated height, so the driver can easily close the power tail gate even when the driver is short. The apparatus for controlling an opening height of a power tail gate according to an embodiment of the present invention includes: a power tail gate opening/closing unit; a tail gate control module for controlling the opening and closing of the power tail gate opening/closing unit; an IMS memory unit for storing IMS information of a driver; and a control unit for providing a user setting mode (USM) interface. The control unit sets the maximum opening height of the power tailgate based on the IMS information of the driver stored in the IMS memory unit when the opening height setting of the tailgate is inputted as ON in the user setting mode interface, so the tail gate control module controls the power tail gate such that the power tail gate can be opened only to the level of the set maximum opening height.
Patent KR-20180076849-A (KR)
Inventor: KIM MIN SU
IPC: F16H1/28
Filed: 2016-12-28
Abstract: The present invention relates to a gear unit and a driving device for an electric parking brake including the same. The driving device for an electric parking brake according to an embodiment of the present invention includes: a motor; a gear unit for receiving the rotational driving force of the motor to output a final driving force; and a power transmission structure for transmitting the final driving force of the gear unit to a driving element of the electronic parking brake. The gear unit includes a first bevel gear formed on an output shaft of the motor, a second bevel gear meshed with the first bevel gear, a first spur gear integrated with the second bevel gear, a second spur gear meshed with the first spur gear, and a planetary gear set that receives the power of the second planetary gear set to output power.
Patent KR-20170082449-A (KR)
Inventor: YAMADA SUSUMU
IPC: G06F3/046
Filed: 2016-12-30
Abstract: [과제] 공진 회로에 있어서 이율 배반적인 요소인 에너지 로스를 적게 하는 것과, 신호 전달 속도를 고속화하는 것을 동시에 만족하는 위치 지시기를 제공한다.  
[해결 수단] 공진 회로를 구비하고, 공진 회로에 의해서 수신된, 제1 계속 시간과 상기 제1 계속 시간보다도 짧은 제2 계속 시간을 가지고 위치 검출 장치로부터 간헐적으로 송신된 전자파에 기초하여 생성된 전자파를 위치 검출 장치에 회신하는 위치 지시기이다. 공진 회로가 가지는 로드 저항의 값이 제1 계속 시간 및 상기 제2 계속 시간의 각각에 대응하여 상이한 값으로 설정됨과 아울러, 제2 계속 시간에 대응하여 설정되는 로드 저항의 값이 제1 계속 시간에 대응하여 설정되는 로드 저항의 값보다도 작게 설정되도록, 로드 저항의 값을 제어하는 로드 저항치 제어 회로를 구비하고 있다.
Patent KR-20160021215-A (KR)
Inventor: KIRKLAND ERIC A
IPC: H01L21/673
Filed: 2014-06-18
Abstract: 표준화된 전방 개방 웨이퍼 컨테이너의 중력 중심을 조정하기 위한 밸러스트 시스템을 제공하는 장치 및 방법.  본 개시물의 다양한 실시형태는 작은 외형을 갖고, 웨이퍼 컨테이너의 외피에 대한 변형을 필요로 하지 않으며, 기존의 웨이퍼 캐리어에 개장될 수 있는 밸러스트 시스템을 나타낸다.  일부 실시형태에서, 이러한 능력은 웨이퍼 컨테이너의 운동학적 커플링 플레이트에 장착되는 밸러스트에 의해 달성된다.  일 실시형태에서, 밸러스팅은 또한 웨이퍼 컨테이너의 퍼징과 연관된 리프팅력에 대한 충분한 상쇄력을 제공할 수 있고, 이에 의해 퍼징 동작 동안 웨이퍼 컨테이너의 "리프트 오프"를 방지한다.  밸러스트는 웨이퍼 컨테이너의 수송을 위해 제거될 수 있고, 이에 의해 수송 비용을 감소시킨다.
Patent KR-20160046875-A (KR)
Inventor: YOSHIDA SHIGEYUKI
IPC: B60L11/18
Filed: 2013-09-30
Abstract: 비접촉 급전 장치(100)는, 송전 코일(12)을 수납하는 송전 코일 유닛(102)보다도, 차량(200)을 주차할 때에 차량이 진입해 오는 측에 설치된 마커(M)를 구비한다.  마커(M)는, 적어도 평행하지 않은 2개의 선분(m1, m2)으로 이루어지고, 한쪽의 선분 m1의 단부는 다른 쪽의 선분 m2에 접속되어 있다.  송전 코일(12)은, 2개의 선분의 교점(C2)으로부터 한쪽의 선분(m1)이 연장되는 방향(CL1)으로 미리 정한 거리만큼 이격되어 위치하고 있다.
Patent KR-20160046895-A (KR)
Title: 충방전 제어 장치, 프로그램
Inventor: NAITO MASAKI
IPC: H02J3/32
Filed: 2013-12-10
Abstract: 전력부하와, 상기 전력부하에 전력을 공급하는 분산형 전원과, 상기 전력부하 및 상기 분산형 전원에 접속되는 축전지를 갖는 수요가에 있어서의 상기 축전지의 충방전을 제어하는 충방전 제어 장치로서, 상기 분산형 전원의 발전량이 상기 전력부하의 소비전력량보다 많은지의 여부를 판정하는 제 1 판정 장치와, 상기 발전량이 상기 소비전력량보다 많다고 상기 제 1 판정 장치가 판정했을 경우, 상기 축전지의 제어에 의거하는 상기 수요가의 경제적 이익이 발생하도록, 상기 축전지의 충방전을 제어하는 제 1 제어 장치를 구비한다.
Patent KR-20160042149-A (KR)
Title: 생성된 장면 내에서 연기하는 배우의 시야와 움직임의 캡쳐
Inventor: MUMBAUER MICHAEL
IPC: G06F3/01
Filed: 2010-08-13
Abstract: 시각적 엔터테인먼트 프로그램의 가상 환경을 위한 장면을 생성하는 방법은, 생성된 장면 내에서 연기하는 배우의 시야와 움직임을 캡쳐하는 단계를 포함하며, 공간의 물리적 볼륨 내에서 상기 배우에 의해 착용된 헤드셋 카메라와 복수의 움직임 캡쳐 마커의 움직임을 추적하는 단계와; 상기 헤드셋 카메라의 움직임을 상기 가상 환경 내에서 동작하는 가상 캐릭터의 머리의 움직임으로 변환하는 단계와; 상기 복수의 움직임 캡쳐 마커의 움직임을 상기 가상 캐릭터의 신체의 움직임으로 변환하는 단계와; 상기 가상 캐릭터의 머리와 신체의 움직임을 사용하여 1인칭 시점의 샷을 생성하는 단계와; 상기 생성된 1인칭 시점의 샷을 상기 배우에 의해 착용된 헤드셋 카메라에 제공하는 단계를 포함한다.
Patent KR-20160077089-A (KR)
Inventor: WANG GUOCHENG
IPC: C07D487/04
Filed: 2014-10-28
Abstract: 본 발명에서는 테모졸로미드의 결정 형태들을 제조하기 위한 신규한 방법, 및 상기 방법에 의해 제조된 테모졸로미드의 3가지 유형의 결정 형태가 제공된다. 상기 방법은 테모졸로미드를 디메틸설폭시드에서 용해하는 단계, 및 재결정화를 위해 제2 유기 용매를 첨가하여 테모졸로미드의 결정 형태들을 제조하는 단계를 포함하며, 이때 상기 제2 유기 용매는 알코올, 케톤, 염류탄화수소 또는 에스테르이다.
Patent KR-20160102160-A (KR)
Title: 진공 배기 기구, 복합형 진공 펌프, 및 회전체 부품
Inventor: NONAKA MANABU
IPC: F04D17/16
Filed: 2014-10-29
Abstract: 진공 펌프는, 설치되는 고정 원판 또는 설치되는 회전 원판 중 적어도 어느 한쪽에, 산부와 골부를 가지는 스파이럴형상 홈이 각설(설치)되는 시그반형 분자 펌프부를 가지며, 시그반형 분자 펌프부 내의 외주(외측)의 꺽임 유로에 있어서 컨덕턴스를 크게 취하기 위한 구조를 구비한다.  이 구조는, 회전 원판에 형성되는 연통부(홈부, 슬릿), 혹은, 고정 원판에 설치되는 사판과 회전 원판에 형성되는 연통부에 의해, 진공 펌프 내부에 형성된다.  「연통부」나 「홈부」, 「슬릿」은, 「오목」 형상의 형태이며, 회전 원판(또는 고정 원판)에 있어서, 외경부로부터 내경 방향을(진공 펌프에 있어서 샤프트가 설치되어 있는 측을) 향해 홈을 각설함으로써 오목부가 설치된다.
Patent KR-20160083042-A (KR)
Inventor: WANG JINGBO
IPC: C08F2/00
Filed: 2014-11-19
Abstract: 감소한 배출 값을 갖는 프로필렌 단독중합체가 제공된다.
Patent KR-20160090832-A (KR)
Title: 부분방전 판단 장치 및 방법
Inventor: PAEK PETER
IPC: G01R19/25
Filed: 2013-11-14
Abstract: 본 발명의 실시예에 따른 부분방전 판단 장치는 부분방전 신호가 감지된 전력기기 각각의 부분방전 정보를 수집하는 정보 수집부 및 수집된 부분방전 정보에 기초하여 각각의 전력기기의 부분방전 패턴을 분석하여 소정의 수치 이상의 부분방전 패턴 유사성을 갖는 전력기기의 조합이 존재하는 지를 판단하는 제어부를 포함하고, 제어부는 소정의 수치 이상의 부분방전 패턴 유사성을 갖는 전력기기의 조합이 존재한다면, 조합을 이루는 전력기기를 선택하고, 선택된 전력기기 중 가장 큰 부분방전 신호가 감지된 제1 전력기기를 찾고, 제1 전력기기에 기초하여 부분방전 판단의 기준이 되는 기준 전력기기를 선정하고, 제1 전력기기 또는 기준 전력기기에 기초하여, 부분방전 발생 전력기기와 부분방전의 간섭이 일어난 전력기기를 판단한다.