baber/WOPTO huggingface dataset:
Patent JP-2009121473-A (JP)
Title: Assembly of fan blade and of its damper, fan blade damper and method for calibrating damper
Inventor: MACE JEROME PAUL MARCEAU
IPC: F04D29/34
Filed: 2008-11-11
Abstract: <P>PROBLEM TO BE SOLVED: To limit wear of a component of a fan blade assembly and calibrate weight of a damper with a simple and reproducable method.  <P>SOLUTION: The invention relates to a fan blade assembly of a turbojet with a fan and a fan blade damper, the fan blade comprising a root and a platform. The fan blade damper is suitable for being attached in a housing formed in a lower face of the platform. The housing includes an upstream side surface perpendicular to the root of the blade. The damper includes a front edge of which a first portion is parallel to the upstream side surface of the housing and of which a second portion is inclined relative to the upstream side surface. The invention also relates to the fan blade damper and a method for calibrating the damper.  <P>COPYRIGHT: (C)2009,JPO&INPIT
Patent JP-2010124110-A (JP)
Title: Electronic apparatus
Inventor: TO GENSHU
IPC: H01Q1/50
Filed: 2008-11-18
Abstract: <P>PROBLEM TO BE SOLVED: To provide an electronic apparatus for improving reception performance of an electronic circuit of an antenna or the like even when a power supply voltage is low.  <P>SOLUTION: A bias circuit 7 includes: a DC/DC converter 26 for boosting voltage to be supplied; a smoothing circuit 27 for smoothing a PWM signal output from a control circuit 8 and thereby for converting the PWM signal into DC voltage; a resistor R2 in which one end is connected to an output terminal of the DC/DC converter 26; and a bipolar transistor 29 in which a collector terminal is connected to the other end of the resistor R2, a base terminal is connected to an output terminal of the smoothing circuit 27, and which makes a resistance value between a collector and an emitter variable on the basis of the DC voltage output from the smoothing circuit 27. First and second varactor diodes VD1, VD2 of a matching circuit 6 are supplied with bias voltage from a connection point between the other end of the resistor R2 and the collector of the bipolar transistor 29, to control tuning frequency.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2009188381-A (JP)
Title: Double-active-layer structure with polysilicon layer and microcrystalline silicon layer, method for manufacturing the same, and apparatus using the structure
Inventor: RYU YUSO
IPC: H01L27/32
Filed: 2008-11-20
Abstract: <P>PROBLEM TO BE SOLVED: To provide a method of reducing interference during a laser annealing process of double amorphous silicon layers formed on a substrate.  <P>SOLUTION: A first amorphous silicon layer over a substrate 1 is patterned to form a first active layer on the substrate 1, Next, a first insulating layer 4 is formed over the first active layer and a part of the substrate 1 not covered with the first active layer. Then, a second amorphous silicon layer is formed over the first insulating layer 4. A laser annealing process is performed to crystallize the first amorphous silicon layer into a microcrystalline silicon layer 7 and crystallize the second amorphous silicon layer into a polysilicon layer 6. The polysilicon layer is patterned to form a second active layer over a part of the substrate 1 not covered with the first active layer. The microcrystalline silicon layer 7 with better crystalline uniformity serves as an active layer for TFTs in a display area of an OLED display.  <P>COPYRIGHT: (C)2009,JPO&INPIT
Patent JP-2010127165-A (JP)
Title: Blowing device
Inventor: KINOSHITA KANJIRO
IPC: F24F1/00
Filed: 2008-11-27
Abstract: <P>PROBLEM TO BE SOLVED: To provide a thin and compact blowing device, suitable for a dehumidifying/humidifying device for an air-conditioner, small in pressure loss, low in noise, and low in driving force.  <P>SOLUTION: The blowing device includes: a centrifugal fan; air blowout passages in a mixed-flow centrifugal direction disposed to an outer periphery of an impeller of the centrifugal fan; and a sleeve-shaped air suction flow passage provided in a shape surrounding an air suction port of the impeller of the centrifugal fan, and opened and extended in the direction orthogonal to a rotational shaft of the impeller of the centrifugal fan. An air flow inlet of the air suction flow passage is formed to one side wall face out of four side wall faces of a box-like fan casing, and air blowout ports from the air blowout passages are respectively formed to three side wall faces with no air flow inlet out of the four side wall faces of the box-like fan casing.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2010130288-A (JP)
Title: Amplifier
Inventor: IWAMATSU MASAYUKI
IPC: H03G3/10
Filed: 2008-11-27
Abstract: <P>PROBLEM TO BE SOLVED: To reduce a clip amount while limiting the amplitude of an output signal.  <P>SOLUTION: This amplifier 100 includes: an inversion type negative feedback amplifier 20 using an operational amplifier 21; an amplitude limiting circuit 50; and a control circuit 40A. When a signal Vp exceeds predetermined potential, the control circuit 40A generates a control voltage CTL to lower the gain of a VCA 30. The amplitude limiting circuit limits the amplitude of Vp of which the amplitude is thus adjusted. Thereby, the waveform of an output signal Vo does not become rectangular even when the amplitude of an input signal Vin increases, and application power is reduced.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2010129350-A (JP)
Title: Light source device for projector apparatus, and projector apparatus
Inventor: FUJIBAYASHI HIROKO
IPC: F21Y101/00
Filed: 2008-11-27
Abstract: <P>PROBLEM TO BE SOLVED: To provide a light source device for a projector apparatus advantageous in effective cooling of a lamp, and to provide a projector apparatus.  <P>SOLUTION: Air is blown into a wind guide member 96 from the front. Air introduced through a first flow passage forming opening 90A forms an air flow of cooling air which flows toward a connection part 7004. Air introduced through a second flow passage forming opening 90B forms an air flow of cooling air which flows toward a point within a shaft part 7002B located inside a skirt part 82, in which a sealing metal foil 74B is connected to a lead wire 76B. Air introduced through a third flow passage forming opening 90C forms an air flow of cooling air which flows to a point where an end part of the lead wire 76B protruding from the shaft part 7002B located inside the skirt part 82 is connected to a feed member 78B.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2010128209-A (JP)
Title: Color coordinate support tool
Inventor: MAYUMI VAN DER POL
IPC: G09F1/02
Filed: 2008-11-27
Abstract: <P>PROBLEM TO BE SOLVED: To provide a color coordinate support tool enabling an ordinary person who is not an expert to accurately select a "color that suits the person" on the basis of a color rule personally or at home.  <P>SOLUTION: The color coordinate support tool includes: instructions 3 which classified hair colors of Japanese women being of a yellow race into a plurality of groups, and produced for each group; a hue circle 1 arranged pure colors in an annular way; and a color chart 2 in which color examples of each color in the hue circle 1 and achromatic colors are linearly arranged. The instructions 3 describe how to use the hue circle 1 and the color chart 2 (See Fig.1).  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2010126779-A (JP)
Title: Method for recovering nickel concentrate from used nickel hydride battery
Inventor: TOKI NORIHISA
IPC: B09B3/00
Filed: 2008-11-28
Abstract: <P>PROBLEM TO BE SOLVED: To provide a method of processing for separating and recovering nickel concentrate efficiently used as a raw material in a step for producing metal nickel in good yield, from a nickel-containing material classified in a processing step of a used nickel hydride battery.  <P>SOLUTION: The method includes following steps (1)-(3). Step (1): a nickel-containing material (B) with a nickel metallization ratio of ≥97.5% is prepared from a nickel-containing material (A). Step (2): a leaching solution containing nickel is obtained by adding the nickel-containing material (B) into a mineral acid solution with adjusted pH of 0-3, under a condition of solution temperature: 25-100°C to be served in leaching. Step (3): a cementation deposit containing nickel in a metal form is obtained by adding alkali into the leaching solution, under a condition of solution temperature: 25-100°C and while adjusting pH to 1-5, adding iron powder to be served in cementation.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2010127024-A (JP)
Title: Nozzle device and sanitary washing apparatus using the same
Inventor: MATSUI HIDEFUMI
IPC: E03D9/08
Filed: 2008-11-28
Abstract: <P>PROBLEM TO BE SOLVED: To provide a nozzle device capable of washing or drying a wide range with a reduced space.  <P>SOLUTION: Since this nozzle device has at least one or more of jetting ports 27, a first nozzle 21 having a flow passage 24 individually communicating with the jetting ports, a second nozzle 22 supporting the first nozzle 21 so as to be capable of advancing-retreating and capable of storing at least a part of the first nozzle 21, a nozzle mount 16 supporting the second nozzle 22 so as to be capable of advancing-retreating and capable of storing the second nozzle 22, a driving means 30 for driving the first nozzle 21 so as to advance-retreat and a rotary means 23 for rotatably driving the first nozzle 21, a small and space-saved nozzle device can be provided so that in use, the first nozzle 21 and the second nozzle 22 are connected and extended, and in nonuse, since the second nozzle 22 storing a part of the first nozzle is stored in the nozzle mount 16, in use, the nozzle is projected long, and in nonuse, since the length can be shortened, wide range washing or drying can be performed.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2009159814-A (JP)
Title: Charging monitor and charger equipped with charging monitor
Inventor: MASUKO HIROSHI
IPC: B60L11/18
Filed: 2008-11-28
Abstract: <P>PROBLEM TO BE SOLVED: To provide a vehicular charging monitor having an anti-theft function and a charger equipped with the charging monitor.  <P>SOLUTION: Each of the charging monitors 30, 50, 60 has: a connection state monitoring means 7, which monitors the connection state of cables 3, 4 which connect an external power source PW to a battery BT mounted on vehicles including a motorcycle M or an electric vehicle EV; and an alarm means (an alarm circuit 8 and an alarm buzzer 14), which emits an alarm when the connection state monitoring means detects the disconnection of the cables 3, 4 between the external power source PW and the battery BT. The charger 1 has the charging monitors 30, 50, 60 and a charging means (a pulse charging circuit 6 and a switching regulator 9), which charges the battery BT with electric power from the external power source PW.  <P>COPYRIGHT: (C)2009,JPO&INPIT
Patent JP-2010127595-A (JP)
Title: Outdoor unit of air conditioner
Inventor: IMAI YUKIHIKO
IPC: F24F5/00
Filed: 2008-12-01
Abstract: <P>PROBLEM TO BE SOLVED: To provide an outdoor unit of an air conditioner having an inexpensive bell mouth of high rigidity without increasing pressure loss of a fan.  <P>SOLUTION: A number of reinforcement ribs 53 to improve the rigidity of a fan ring 51 are disposed on an outer periphery of the fan ring 51 in the circumferential direction of the fan ring, and a reinforcement flange 521 to improve the rigidity of a skirt 52 is disposed on a peripheral edge of the skirt 52 to suppress the deformation and strain of part of the fan ring 51 and the skirt 52 due to thermal shrinkage.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2010139760-A (JP)
Title: Display device
Inventor: NISHINO TOSHIHARU
IPC: G02F1/1335
Filed: 2008-12-11
Abstract: <P>PROBLEM TO BE SOLVED: To provide a display device with a protective plate that can sufficiently reduce reflection of light entering from an observation side, and performs a display high in contrast.  <P>SOLUTION: The liquid crystal device comprises: a liquid crystal element 1 with a liquid crystal layer 11 sealed between a pair of substrates 2, 3 and having electrodes 4, 5 provided on the inner faces opposing to each other of the pair of substrates 2, 3, respectively; a polarizing plate 15 having an absorption axis in a predetermined direction and disposed in the observation side of the liquid crystal element 1; a quarter-wave plate 17 having a slow phase axis in a direction intersecting at an angle of 45° with the absorption axis of the polarizing plate 15, and disposed between the liquid crystal element 1 and the polarizing plate 15; and a protective plate 25 disposed in the further observation side than the polarizing plate 15. The polarizing plate 15 and the quarter-wave plate 17 are laminated to each other and disposed as firmly attached to the face of the protective plate 25 opposite the liquid crystal element 1; and the liquid crystal element and the quarter-wave plate 17 are disposed to leave a gap therebetween.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2010137734-A (JP)
Title: Door check device
Inventor: YAMAMOTO KENJI
IPC: F16K47/02
Filed: 2008-12-12
Abstract: <P>PROBLEM TO BE SOLVED: To provide a door check device in which an operation sound becomes small.  <P>SOLUTION: A one way valve is provided on a conduit on an upstream side further than a valve element 72, and includes a hole part 4a becoming in the closed state by closing it with the valve element 72; a first flow passage FR and a second flow passage SR for guiding a liquid from the hole part 4a to a downstream of the valve. When flow resistance is set larger than flow resistance of the hole part 4a and the valve element 72 closes the hole part 4a, the first flow passage FR is in the closed state, and when the valve element is left from the hole part 4a, it becomes in the full open state. When the valve element 72 closes the hole part 4a, the second flow passage SR is in the closed state, and after the valve element 72 is left from the hole part 4a and the first flow passage FR becomes in the full open state, it starts to be opened.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2010143665-A (JP)
Title: Travel vehicle system
Inventor: HARASAKI KAZUMI
IPC: B65G1/00
Filed: 2008-12-16
Abstract: <P>PROBLEM TO BE SOLVED: To provide a travel vehicle system capable of updating layout data of a travel vehicle safely and quickly.  <P>SOLUTION: The travel vehicle system 100 includes a travel road 140, the travel vehicle 200 and a first controller 121. The first controller 121 includes a request receiving part 126 for receiving a transmission request of layout data and a layout transmission part 127 for regularly transmitting version information indicating a version of the layout data to the travel vehicle 200 and transmitting the layout data corresponding to the transmission request to the travel vehicle. The travel vehicle 200 includes a layout receiving part 210, a layout data storing part 215, a comparison part 220 for comparing the version indicated by the version information and the version of the layout data stored in the layout data storing part 215 and a request transmission part 205 for transmitting the transmission request in the case that these versions are different from one another.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2010148207-A (JP)
Title: Electrostatic actuator and manufacturing method therefor
Inventor: TAKAHASHI TOKUO
IPC: H02N1/00
Filed: 2008-12-17
Abstract: <P>PROBLEM TO BE SOLVED: To provide an electrostatic actuator having a fixing sheet of a four-phase electrode pattern, which needs only one face wiring, has a large and uniform electrostatic force, and is easy to be manufactured, and also to provide a manufacturing method therefor.  <P>SOLUTION: The electrostatic actuator is equipped with: a first sheet having a specific two-phase electrode pattern on one face; a second sheet having the remaining two-phase electrode pattern on one face; an insulating layer for preventing the electrode patterns different in phase from being shorted when the face of the first electrode pattern and the face of the second electrode pattern are put on; a fixing sheet including an adhesion layer for adhering the first and second sheets; and a moving sheet disposed opposite the fixed sheet, and movable through an electrostatic force working between the fixing sheet and it.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2009282955-A (JP)
Title: Smoke sensor
Inventor: FUKUI TAKU
IPC: G08B17/107
Filed: 2008-12-19
Abstract: <P>PROBLEM TO BE SOLVED: To provide a smoke sensor capable of simplifying or eliminating a means for preventing the incidence of disturbance light on a light-receiving unit.  <P>SOLUTION: A current-voltage converting circuit 2 includes a first feedback circuit 5 for outputting such a voltage of an output voltage Vout as accords to the magnitude of a low-frequency component at or lower than a predetermined first cut-off frequency, and a shunt transistor Q1 for extracting a current according to the magnitude of the output of the first feedback circuit 5, from an input current Iin. The first feedback circuit 5 comprises a first integration circuit 9 for integrating the output voltage Vout of a conversion unit 3, and a sample-and-hold circuit 10 for sampling and holding the output of the first integration circuit 9 for a sensing period, during which a pulsating detection signal is input.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2010146473-A (JP)
Title: Battery service system and method for electrically driven vehicle
Inventor: KAWAGUCHI MASAHIRO
IPC: G06Q50/00
Filed: 2008-12-22
Abstract: <P>PROBLEM TO BE SOLVED: To provide a user-friendly battery service system and method in which a mounted battery mounted on an electric vehicle is managed by a battery providing side and speedy charging is performed by providing a charged battery when a user needs it.  <P>SOLUTION: The battery service system 100 includes: a battery remaining amount meter 10 for measuring a remaining amount of a mounted battery of the electrically driven vehicle; a communication apparatus 20 for transmitting to a battery service device 30 battery identification information for identifying the remaining amount of the mounted battery obtained from the battery remaining amount meter 10 and the mounted battery; and the battery service device 30 for acquiring and outputting user information necessary for providing a user possessing the mounted battery with a charged battery on the basis of the battery identification information received from the communication apparatus 20 when the remaining amount of the mounted battery received from the communication apparatus 20 is equal to or smaller than a prescribed value. Thus, a charged battery is provided for the user.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2010151869-A (JP)
Title: Display control apparatus, display control method, and display control program
Inventor: TODA KATSUMI
IPC: G09G3/20
Filed: 2008-12-24
Abstract: <P>PROBLEM TO BE SOLVED: To provide a display control apparatus, display control method, and display control program that prevent switching of an unnecessary image and reduce useless consumption of electric power when display control is synchronized between it and the other terminal.  <P>SOLUTION: When switching information as information for switching a main image displayed on a main display terminal is received (YES at Step S133), it is determined whether the received switching information is successive switching information for switching the main image successively a plurality of times (Steps S138 through S142). When the received switching information is determined to be successive switching information (YES at Step S142, and YES at Steps S144 and S141), a specific image to be displayed on a display section is indexed from the received switching information (S147). Only the indexed specific image is displayed on the display section (S150).  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2010149620-A (JP)
Title: Floor panel structure of cab-over type automobile
Inventor: NAKAZATO JUN
IPC: B62D33/06
Filed: 2008-12-24
Abstract: <P>PROBLEM TO BE SOLVED: To provide a floor panel structure of a cab-over type automobile capable of reducing the production cost, and facilitating the assembly work and the inventory management of reinforcing members.  <P>SOLUTION: The floor panel structure of the cab-over type automobile comprises a floor panel 1 having a center floor panel part 1a and side floor panel parts 1b provided on both sides of the center floor panel part 1a, and a plurality of reinforcing members to reinforce the floor panel 1. The plurality of reinforcing members are constituted as reinforcing members 2A, 2B integrated with each other on a driver seat side and an assistant seat side.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2010151550-A (JP)
Title: METHOD FOR EVALUATING GENE EXPRESSION INHIBITING EFFECT OF siRNA
Inventor: KOBAYASHI SAYOKO
IPC: G01N21/78
Filed: 2008-12-24
Abstract: <P>PROBLEM TO BE SOLVED: To provide a method for quickly and conveniently evaluating a gene expression inhibiting effect by a siRNA.  <P>SOLUTION: The method for evaluating the gene expression inhibiting effect of the siRNA includes: the process (a) for preparing a fluorescently-labeled siRNA in which one RNA strand as a sense strand or an antisense strand in the siRNA is labeled by a fluorescent material; the process (b) for irradiating a reaction solution containing the fluorescently-labeled siRNA with excitation light, detecting a fluorescence as a fluorescent signal generated from the fluorescent material, and analyzing it by a unimolecular fluorescence analysis method; the process (c) for irradiating the reaction solution with excitation light, detecting the fluorescence as the fluorescent signal generated from the fluorescent material, and analyzing it by the unimolecular fluorescence analysis method after the fluorescently-labeled siRNA is added to the reaction solution containing a RNA helicase or a RISC and an ATP, and reacted; and the process (d) for comparing analysis results obtained from the processes (b), (c), and evaluating the gene expression inhibiting effect of the siRNA.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2008533108-A (JP)
Title: 生物学的に活性な分子の投与系としての、キトサンとポリエチレングリコールとのナノ粒子
IPC: A61K47/36
Filed: 2006-03-14
Abstract: 本発明は、生物学的に活性な分子を放出するための、キトサン重合体またはその誘導体を含んでなり、ポリエチレングリコールで化学的に変性され、架橋剤で架橋したナノ粒子系に関する。この系は、薬剤組成物、ワクチン、および化粧品処方物に特に好適である。
Patent JP-2008536623-A (JP)
Title: 外科的修復のための方法および装置
IPC: A61B17/04
Filed: 2006-04-12
Abstract: 外科的修復を行うための方法および装置には、骨などの体の一部の中に通路を形成するためのガイドの使用を伴いうる。さらに／あるいは、体の一部に対して素材に固定したりするための、縫合糸または縫合糸のような素材を通路内に供給するために、ガイドを使用してもよい。通路は、体の一部の中に形成された交差する第一および第二孔により形成できる。縫合糸の両端を通路内に配置し、通路への開口部の一つの付近で、体の一部に対して固定すればよい。フロス作業などを用いて、通路の第一開口部と第二開口部の間にまっすぐな経路を形成できる。
Patent JP-2008538989-A (JP)
Title: 皮下信号又は体表面信号内の雑音、洞調律、及び心室細動を検出するレベル交差検出器
IPC: A61B5/0402
Filed: 2006-04-11
Abstract: 【課題】雑音信号及び他の生理的信号を除去しながら、皮下的に、確実に不整脈を検知し検出する改良された埋め込み可能カーディオバータ−ディフィブリレータ（ＳｕｂＱ  ＩＣＤ）を提供する。 【解決手段】患者の体内への最小の外科的侵入によって皮下的に埋め込み可能であり、且つ、皮下リード線に連結されるＳｕｂＱ  ＩＣＤは、必要であるときに、心臓にわたってカーディオバージョン−ディフィブリレーションショック及びペーシング治療の送出するための、分散した、カーディオバージョン−ディフィブリレーションのセンス電極及び刺激電極を提供する。レベル交差検出のシステム及びプロセスが実施されて、必要に応じて治療を送出するために、皮下信号又は体表面信号内の雑音、洞調律、及び心室細動を検出する。 【選択図】図１
Patent JP-2008543387-A (JP)
Title: メモリ付きディスクリクライニング装置
IPC: B60N2/10
Filed: 2006-06-13
Abstract: 車輌シートは、背もたれと、シートクッションと、背もたれをシートクッションに蝶着し、シートクッションに対する背もたれの回転運動を提供する一対のリクライニング装置とを備える。各リクライニング装置は、所定の移動距離間にリクライニング装置をロック解除位置に保持し、前畳み位置からメモリ位置への背もたれの戻り運動を可能にするメモリプレートを有する。メモリ位置は、背もたれのリクライニング位置の範囲内に収まる。
Patent JP-2008544005-A (JP)
Title: 低ホルムアルデヒド放出量の熱成形性メラミン／ホルムアルデヒドフォーム材
IPC: C08J9/04
Filed: 2006-06-12
Abstract: 【課題】熱成形性があり、低ホルムアルデヒド放出量のメラミン／ホルムアルデヒドフォーム材の製造方法を提供する。 【解決手段】メラミン／ホルムアルデヒド（ＭＦ）予備縮合物、硬化剤及び発泡剤、加熱前に加えられるホルムアルデヒド捕捉剤を含む混合物の発泡及び架橋とともに加熱することによるフォーム材の製造方法、及び低ホルムアルデヒド放出量のメラミン／ホルムアルデヒド樹脂に基づくフォーム材、及びそれらの熱成形による成形品の製造への使用方法により解決する。 【選択図】なし
Patent JP-2008544465-A (JP)
Title: 電気相互接続システム
IPC: H01R12/71
Filed: 2006-06-22
Abstract: 電気相互接続システムが、受入空洞をその中に有するプリント回路基板を備えている。少なくとも１つの回路配線が、その空洞の側壁上に配置されている。電気コネクタが、受入空洞に挿入するために構成されている。電気コネクタは、受入空洞に挿入されると少なくとも１つの回路配線と接触するように配置された電気コンタクトを有している。