baber/WOPTO huggingface dataset:
Patent JP-2017517720-A (JP)
Title: 無線航法信号の認証を最適化する方法及びシステム
IPC: H04L9/08
Filed: 2015-03-23
Abstract: 複数の衛星搭載送信機(110,114,118,122)と、少なくとも１つの地上ベースの受信機(104)を含む無線航法システム(100;400)であって、前記受信機(104)は、複数の前記送信機(110,114,118,122)のそれぞれからの無線航法信号(112,116,120,124;412,416,420,424)を受信するように適合されている。前記送信機(110,114,118,122)のそれぞれ及び前記受信機(104)は、所定の第１のキーチェーンにアクセスするように適合されており、前記第１のキーチェーンは、第１の暗号化キー(Ｋ;Ｋj)と１つ以上のさらなる暗号化キー(Ｋ;Ｋj,1,Ｋj,2,Ｋj,3,Ｋj,4)を含む。前記システムは、前記複数の送信機(110,114,118,122)からの第１のグループの送信機であって、前記第１のグループの送信機の各送信機は、第１の無線航法信号(112,116,120,124;412,416,420,424)を送信するように適合されており、前記第１の無線航法信号は、ある与えられた時点又は与えられたサブフレーム(k,k+1)の間、無線航法データ、メッセージ認証符号（ＭＡＣ）（ＭＡＣ1,ＭＡＣ2,ＭＡＣ3,ＭＡＣ4）、及び前記１つ以上のさらなる暗号化キー(Ｋ;Ｋj,1,Ｋj,2,Ｋj,3,Ｋj,4)の１つを含む。前記ＭＡＣ符号（ＭＡＣ1,ＭＡＣ2,ＭＡＣ3,ＭＡＣ4）は、各送信機(110,114,118,122)に対してユニークであり、かつ前記第１の暗号化キー(Ｋ;Ｋj)を用いて生成され、前記１つ以上の暗号化キー(Ｋ;Ｋj,1,Ｋj,2,Ｋj,3,Ｋj,4)は、前記ＭＡＣの送信の所定時間後に送信される。前記受信機(104)は、前記第１のグループの送信機(110,114,118,122)の１つ又はより多くからの前記第１の無線航法信号(112,116,120,124;412,416,420,424)の全部又は一部を受信次第、その送信機又は他の任意の前記第１のグループの送信機から受信された１つ以上のさらなる暗号化キー(Ｋ;Ｋj,1,Ｋj,2,Ｋj,3,Ｋj,4)の１つに基づいて、前記第１のグループの送信機の１つから受信された第１の無線航法信号を認証するように、動作可能である。第１のグループの全ての送信機について同じキーＫが用いられてもよいし、各送信機が前記キーチェーンと異なるキーを用いてもよい。前記送信機は、前記第１のグループに加えて、同様な方法でそれ自身のキーチェーンを用いる第２のグループに構成されてもよい。利点は低品位の受信状態でさえも認証位置の利用可能性を高めることである。実施形態は、予測可能ビットにインターリーブされた予測不能ビットの使用を通して、信号予測可能期間を最小化し、リプレイ攻撃に対する強固性を高めるための認証情報の最適な送信にも関連する。
Patent JP-2017515379-A (JP)
Title: 共有スペクトル内のチャネル選択基準
IPC: H04W24/10
Filed: 2015-04-16
Abstract: 共有スペクトル環境におけるチャネル選択および関連動作のための技法が開示される。一例では、チャネルセレクタなどは、利用可能なチャネルの各々に関するコスト関数を別個のユーティリティ基準およびペナルティ基準に基づくコスト関数と比較することに基づいて、いくつかの利用可能なチャネルのうちの1つを動作チャネルとして選択するために使用され得る。別の例では、チャネルスキャナなどは、チャネル品質基準がアクセス端末のしきい値数または比率に対して不十分なサービスを示すことに応じて、チャネル走査をトリガするために使用され得る。別の例では、動作モードコントローラは、ユーティリティ基準がしきい値を上回ることに応じて、動作チャネル上で時分割多重(TDM)モードをトリガするために使用され得る。TDMモードは、TDM通信パターンに従ってアクティブ期間と非アクティブ期間との間で動作を循環させることができる。
Patent JP-2017515422-A (JP)
Title: リソーススケジューリングの方法、装置、およびシステム
IPC: H04W92/18
Filed: 2014-05-08
Abstract: 本発明の実施形態は、リソーススケジューリングの方法、装置、およびシステムを提供する。本発明の実施形態は、通信技術の分野に関連し、Ｄ２Ｄ通信におけるリソーススケジューリングの問題を解決するために使用される。方法は、第１のノードにより、第１の制御シグナリングを第２のノードに送信することであって、第１の制御シグナリングは、第２の制御シグナリングの送信のためのリソースに関する情報およびデータの送信のためのリソースに関する情報を含むことと、第２のノードにより、第１のノードから送信された第１の制御シグナリングを受信することと、第２の制御シグナリングの送信のためのリソースを使用することにより第３のノードに第２の制御シグナリングを送信することと、データの送信のためのリソースを使用することにより第３のノードにデータを送信することとを含む。本発明の実施形態において提供されるリソーススケジューリングの方法、装置、およびシステムは、比較的遅延に対し高い性能を必要とするデータ通信装置に適用されることができる。
Patent JP-2017522448-A (JP)
Title: 選択的焼結による３ｄ印刷のための方法及び装置
IPC: B22F3/02
Filed: 2015-05-07
Abstract: ３次元物体を構築するためのシステム（１００）が、粉末材料の層を構築トレイ（２００）上に加えるための粉末送達ステーション（１０）と、マスク・パターンを層上に印刷するためのデジタル印刷ステーション（３０）と、焼結されることになるマスクによって画定される層の部分を選択的に焼結するための焼結ステーション（５０）と、共に３次元物体を形成する複数の層を構築するために、構築トレイ（２００）を粉末送達ステーション、デジタル印刷ステーション、及び焼結ステーションのそれぞれに繰り返し進めるステージ（２５０）とを含む。マスク・パターンは、焼結されることになる層のネガ部分を画定する。任意選択で、システムは、粉末材料の層ごとに圧縮成形するためのダイ圧縮成形ステーション（４０）を含む。
Patent JP-2017521329-A (JP)
Title: カプセル吐出用ポンプ容器
IPC: A45D34/04
Filed: 2015-05-18
Abstract: 本発明は、カプセル吐出用ポンプ容器に関するもので、バルブ部材の開閉板がバルブ本体の内周面に回動支持台を通じて、上下回動を可能に結合され、内容物流入ホール、及び、内容物移動管の上端を開閉するように構成されることにより、ポンピング部材のポンピング作動する時、カプセルになっている粒の内容物をつぶさないで吐出できることが特徴である。
Patent JP-2018110614-A (JP)
Title: Pinball game machine
Inventor: IBARADA YOSHIOMI
IPC: A63F7/02
Filed: 2017-01-06
Abstract: PROBLEM TO BE SOLVED: To provide a pinball game machine capable of giving fun to a player while maintaining and adjusting a winning rate (profit rate) by adjusting a winning frequency to a normal electric accessory.SOLUTION: A pinball game machine includes profit rate adjustment means for adjusting a profit rate, if at least a winning rate to a first start port is lower than a predetermined winning rate during a period when a predetermine number of game balls are shot. If adjustment of the profit rate is being performed by the profit rate adjustment means, a notification is made to a player to the effect. In a state in which the notification is being made, expectation degree for becoming a big win when a read-ahead presentation has been performed is to be improved, compared to a state in which the notification is not being made.SELECTED DRAWING: Figure 30
Patent JP-2017082238-A (JP)
Title: Vinylidene fluoride/2,3,3,3-tetrafluoropropene copolymers
Inventor: MEHDI DURALI
IPC: C08F214/22
Filed: 2017-01-06
Abstract: PROBLEM TO BE SOLVED: To provide copolymer compositions with excellent optical properties.SOLUTION: This invention relates to copolymer compositions of poly(vinylidene fluoride-2,3,3,3-tetrafluoropropene) copolymers. The copolymers formed have excellent optical properties, corrosion resistance and electrical properties, with a very low haze level. Tetrafluoropropene monomer units may be present at 0.5 to 60 wt.% of the copolymer.SELECTED DRAWING: None
Patent JP-2017080500-A (JP)
Title: Infusion pump methods and systems
Inventor: ROBERT J BRYANT JR
IPC: A61M5/142
Filed: 2017-01-11
Abstract: PROBLEM TO BE SOLVED: To provide infusion pump methods and systems.SOLUTION: An infusion pump system is disclosed. The system includes at least one infusion pump, a companion device, the companion device in wireless communication with the infusion pump, and a user interface on the companion device adapted to receive a text input. Also, a medical remote controller device is disclosed. The device includes a display and at least one input switch dedicated to a bolus delivery. The bolus delivery is programmed when the input switch receives an input and the number of inputs received by the input switch determines the amount of bolus to be delivered.SELECTED DRAWING: Figure 1-2
Patent JP-2018114945-A (JP)
Title: Vehicular air conditioner
Inventor: YAMASHITA KOHEI
IPC: B60H1/22
Filed: 2017-01-20
Abstract: PROBLEM TO BE SOLVED: To suppress fluctuation of a temperature of air blown out into a cabin in a vehicular air conditioner that performs output restriction control of a heating device.SOLUTION: Air supplied into a cabin is heated by a heating device (auxiliary heater 23) provided in an air flow passage 3 of an HVAC unit 10. When a temperature Thtr of the heating device detected by an auxiliary heater temperature sensor reaches a predetermined restriction threshold value or more, a heat pump controller of a control device executes output restriction control for restricting an output value TGQhtr for controlling heat generation of the heating device, and sets a predetermined lower limit value LimL at the output value TGQhtr restricted in the output restriction control.SELECTED DRAWING: Figure 1
Patent JP-2018122699-A (JP)
Title: Exterior component for straddle-type vehicle
Inventor: YOKOUCHI KOHEI
IPC: B62J23/00
Filed: 2017-01-31
Abstract: PROBLEM TO BE SOLVED: To provide a screen supporting structure that is suitable in appearance and that inhibits the thickness of a support portion from being increased when a large screen is employed in an exterior component equipped with the screen.SOLUTION: In an exterior component including a screen 30 that is provided at a front portion of a straddle-type vehicle, a cover member 31 that covers a vehicle body, and screen supporting portions 32 that support the screen 30, a fiber-reinforced resin part configured by a fiber-reinforced resin is included in at least a portion of the cover member 31. The screen supporting portions 32 are configured by the fiber-reinforced resin while extending upward from the fiber-reinforced resin part to support respective side rims 30b of the screen 30. The screen 30, the screen support portions 32, and the fiber-reinforced resin part are integrally formed.SELECTED DRAWING: Figure 3
Patent JP-2017160419-A (JP)
Title: Sample adhesive member, sample mounting module and portable microscope device
Inventor: LIN CHENG-MING
IPC: G02B21/26
Filed: 2017-02-03
Abstract: PROBLEM TO BE SOLVED: To provide a sample adhesive member and a sample mounting module capable of simplifying a manufacturing process of a microscope sample.SOLUTION: There is provided a portable microscope module 100 used together with an image capture device 60, having a light transmission carrier 11 and a sample adhesive member 12, capable of observing a micro structure of samples S or taking a picture thereof by the image capturing device 60 by adhering the samples S by a recess of the sample adhesive member 12, adhering the sample adhesive member 12 to the light transmittance carrier, holding a sample mounting module 10 by hands and manually adjusting distance of the samples S and a microscope head 31.SELECTED DRAWING: Figure 5A
Patent JP-2018128168-A (JP)
Title: Stove
Inventor: MIYATO AKIRA
IPC: F24C3/12
Filed: 2017-02-06
Abstract: PROBLEM TO BE SOLVED: To provide a stove capable of enhancing detection accuracy on the fact that clothing of a user approaches a burner, to provide stable firepower.SOLUTION: A CPU is configured to: acquire each measurement voltage value indicating a detection signal of each optical sensor (S7); determine whether an optical sensor whose measurement height is within an operation range exists or not (S8); when the optical sensor whose measurement height is within the operation range exits (S8: YES), specify the optical sensor, and then determine whether variation of the measurement height of the specified optical sensor is within an operation stable width corresponding to the specified sensor (S16); and when the variation of the measurement height in an operation stable time is within the operation stable width corresponding to the specified sensor (S16:YES), indicate an electromagnetic valve circuit to reduce a gas flow rate.SELECTED DRAWING: Figure 12
Patent JP-2018129629-A (JP)
Title: Piezoelectric sensor and piezoelectric device
Inventor: ITAYAMA YASUHIRO
IPC: H04R17/00
Filed: 2017-02-07
Abstract: PROBLEM TO BE SOLVED: To provide a piezoelectric sensor and a piezoelectric device that can increase the degree of integration of a transmission piezoelectric element and a reception piezoelectric element.SOLUTION: A transmission piezoelectric element 17a and reception piezoelectric elements 17b1 and 17b2 are arranged on a vibration board 50 facing each opening 18 of openings 18 of a piezoelectric sensor. External force is applied to the vibration board 50 facing the opening 18 in a vertical direction. The reception piezoelectric elements 17b1 and 17b2 are arranged in a first region and the transmission piezoelectric element 17a is arranged in a second region, where the first region denotes a region where stress reaches the maximum main stress, i.e. a maximum value of stress of the vibration board 50, and the second region denotes a region where stress reaches the minimum main stress, i.e. a minimum value of stress of the vibration board 50.SELECTED DRAWING: Figure 4
Patent JP-2017167521-A (JP)
Title: Phosphor wheel, light source device and projection-type image display device
Inventor: IKEDA TAKASHI
IPC: F21V9/40
Filed: 2017-02-10
Abstract: PROBLEM TO BE SOLVED: To provide a phosphor wheel capable of accurately positioning between a phosphor layer and a base plate.SOLUTION: The phosphor wheel includes: a disk-like base plate; and a phosphor ring fixedly adhered to the base plate. On the peripheral part of the base plate, a notch or opening is formed at least at three points. The shortest length from the center of the base plate to the edge of the notch or opening generally coincides with the radius of outer periphery edge of the phosphor ring.SELECTED DRAWING: Figure 6A
Patent JP-2018133381-A (JP)
Title: Optical module
Inventor: ARIGA MAIKO
IPC: G02B6/42
Filed: 2017-02-14
Abstract: PROBLEM TO BE SOLVED: To provide an optical module capable of achieving reduction of light not required in the inside.SOLUTION: An optical module includes: a housing; and an optical element which is arranged in the housing and emits light into the housing. Some region of the surface of the inside of the housing absorbs the light and is equal to a light reflection low reduction region which is processed so as to be a rough surface. Preferably, the light reflection reduction region constitutes the surface of the lid of the housing. Preferably, the lid contains an Fe-Ni-Co alloy or aluminum oxide. It is preferable that the base of the light reflection low reduction region of the lid is gold plating, and the gold plating is applied to the inner face of the housing located around the light reflection low reduction region.SELECTED DRAWING: Figure 1
Patent JP-2018133291-A (JP)
Title: Battery pack
Inventor: GOIIZUKA SHINYA
IPC: H01M50/298
Filed: 2017-02-17
Abstract: PROBLEM TO BE SOLVED: To provide a battery pack capable of quickly injecting a fire extinguishing agent into a pack case while suppressing a short circuit of an assembled battery disposed in a module case due to an erroneous operation of a fire extinguishing agent injection portion.SOLUTION: A battery pack 100D is installed in a vehicle and includes: a battery module 20 including an assembled battery and a module case for housing the assembled battery therein; a pack case 10 that houses the battery module 20 therein; and a fire extinguishing agent application portion 90D including a fire extinguishing agent and a sealing portion filled with the fire extinguishing agent and configured to be able to inject the fire extinguishing agent. The fire extinguishing agent injection portion 90D includes a part disposed between the battery module 20 and the pack case 10, and injects the fire extinguishing agent between the pack case 10 and a module case 22 by the sealing portion being heated and melting in the pack case 10.SELECTED DRAWING: Figure 16
Patent JP-2018132276-A (JP)
Title: Method for removing mercury from exhaust gas, and waste disposal apparatus using the same
Inventor: MISHIMA SHUNICHI
IPC: F23J15/00
Filed: 2017-02-17
Abstract: PROBLEM TO BE SOLVED: To provide a technology of removing mercury from exhaust gas, capable of preventing adsorption of mercury from being inhibited due to dew condensation water.SOLUTION: A method for removing mercury from exhaust gas comprises arranging a mercury adsorption tower 13 at a rear stage of an exhaust gas treatment tower 12, which is configured to treat exhaust gas from a waste incinerator 1, and removing mercury contained in exhaust gas. The method comprises measuring mercury concentration in exhaust gas, and when the mercury concentration exceeds a set value, supplying exhaust gas to the mercury adsorption tower 13 while a controller 20 heats the mercury adsorption tower 13 with high-temperature air supplied from a duct 8. Although steam concentration of exhaust gas passing through the exhaust gas treatment tower 12 becomes a saturated state, since heating is performed with high-temperature air, dew condensation can be prevented from occurring in adsorbent, thereby preventing adsorption inhibition.SELECTED DRAWING: Figure 1
Patent JP-2018136133-A (JP)
Title: Micro working electrode for highly precise local electrochemical measurement, method for producing micro working electrode for highly precise local electrochemical measurement, and method for releasing insulating coating layer of micro working electrode for highly precise local electrochemical measurement
Inventor: KADOWAKI MARIKO
IPC: G01N27/30
Filed: 2017-02-20
Abstract: PROBLEM TO BE SOLVED: To provide a micro working electrode for highly precise local electrochemical measurement for analysis of local electrochemical phenomenon, the analysis required in highly precise electrochemical measurement of an origin of micro corrosion, a point of initiation of plating reaction, a process of formation of a micro defect, and so on of metallic materials, to provide a method for producing the same easily and with high precision, and to provide a method for easily releasing an insulating coating layer of the micro working electrode for the highly precise local electrochemical measurement.SOLUTION: A micro working electrode for highly precise local electrochemical measurement comprises: a working electrode surface 2 whose area is 0.01 mmor less; and an insulating coating layer 1 around a periphery of the working electrode surface 2, the insulating coating layer being composed of a hydrophobic organic compound to which a contact angle of a water droplet is larger than 70 degrees. The organic compound is one of ethyl methyl ketoxime, styrene-butadiene, nitrile, and so on or a mixture of two or more thereof. The micro working electrode further comprises a hydrophilic organic compound layer 3 which is on a surface of the insulating coating layer 1 in a form in which to surround the periphery of the working electrode surface 2.SELECTED DRAWING: Figure 1
Patent JP-2018137112-A (JP)
Title: battery
Inventor: HEIJI KATSU
IPC: H01M10/0585
Filed: 2017-02-21
Abstract: PROBLEM TO BE SOLVED: To provide a battery capable of excluding surplus space in the battery, while facilitating encapsulation of battery element in an exterior material.SOLUTION: A battery element is housed in a rectangular recess formed in a film-like exterior material of a battery. With regard to the end position in any one side of the rectangular recess and the middle position, when the dimension from one end to the other end of the exterior material along the surface thereof is measured in a direction orthogonal to the one side, the dimension Wat the end position of the recess is larger than the dimension Wat the middle position of the recess. Furthermore, radius of curvature at the corner of the recess is different at the end position and the middle position, and the radius of curvature Rat the middle position is larger than the radius of curvature Rat the end position.SELECTED DRAWING: Figure 4
Patent JP-2018134793-A (JP)
Title: Printing device
Inventor: TAKAHASHI HIROTSUGU
IPC: B41J15/04
Filed: 2017-02-22
Abstract: PROBLEM TO BE SOLVED: To provide a printing device that can conduct high-quality parallel printing to a plurality of printing media.SOLUTION: A printing device 10 includes: a delivery part 40 for supporting a plurality of roll bodies RA in which a roll sheet M is wound into a roll shape and unwinding a plurality of the roll sheets M; a transportation part 60 imparting transportation force to the unwound roll sheet M to transport the roll sheet M; a printing part 70 for printing on the transported roll sheet M; and a tensile force imparting part 440 for imparting tensile force relative to the transportation force to the roll sheets M individually.SELECTED DRAWING: Figure 2
Patent JP-2018137654-A (JP)
Title: Communication apparatus, communication program, and communication method
Inventor: WATANABE KAZUHIRO
IPC: H04N21/242
Filed: 2017-02-23
Abstract: PROBLEM TO BE SOLVED: To set an output bit rate (target bit rate) flexibly in relative to an input bit rate when multiplexing media information and service information.SOLUTION: A service information multiplexing device 1 configured to multiplex inputted media information and generated service information is characterized in comprising: a PCR detection part 13 which detects an MPEG2-TS packet including PCR information of media information and outputs the PCR information; a packet transmission control/PCR correction value calculation part 14 which calculates the number of dummy packets that should be inserted between MPEG2-TS packets including PCR information and calculates a correction value of PCR information of the MPEG2-TS packet including the PCR information; a NULL packet generation part 17 which generates a dummy packet that is designated by the packet transmission control/PCR correction value calculation part 14; and a packet multiplexing part 19 which multiplexes the MPEG2-TS packet including the PCR information and the dummy packet that becomes output of the NULL packet generation part 17.SELECTED DRAWING: Figure 1
Patent JP-2017087048-A (JP)
Title: Game machine
Inventor: ARAI KOTA
IPC: A63F7/02
Filed: 2017-02-27
Abstract: PROBLEM TO BE SOLVED: To provide a game machine capable of enhancing a feeling of expectation for a lucky number by changing a selection of the lucky number according to a time when a jackpot is produced.MEANS FOR SOLVING THE PROBLEM: The game machine includes: information symbol selection means for selecting at least one information symbol out of a plurality of information symbols different from a plurality of determination symbols; and information symbol display means 40 for displaying the selection result by the information symbol selection means on the basis on an event that a win/failure determination result turns out a winning. The information symbol selection means includes a plurality of information symbol selection tables in which a selection probability of a prescribed information symbol out of the plurality of information symbols is differentiated according to a time when the win/failure determination result turns out the winning. The game machine is configured to select an information symbol from an information symbol selection table according to a time when the win/failure determination result turns out the winning.SELECTED DRAWING: Figure 1
Patent JP-2018139723-A (JP)
Title: Method for producing coreless roll paper
Inventor: KUROSAKI AKIRA
IPC: A47K10/16
Filed: 2017-02-27
Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a coreless roll paper that enables paper rolled up into a roll shape to be used to the last end.SOLUTION: The method for producing a coreless roll paper comprises: a first step of rolling up paper 2 and forming it into roll-shaped roll paper 1; a second step of inserting an insertion part for ejecting an adhesive, into a central hole 3 of the roll paper 1; a third step of adhering the adhesive to a predetermined position of the central hole 3; and a fourth step of heating-drying a region with the adhesive adhered thereto, and curing both ends 3a, 3b of the central hole 3. In the third step, the adhesive having adhesive power in an extent allowing for peeling of the paper 2 being rolled up into a roll shape when using the roll paper 1 is adhered to the vicinity of both extended ends of the central hole 3, and in the fourth step, the adhesives is dried before the adhesives adhering to the central hole 3 are spread from the predetermined position of the central hole 3.SELECTED DRAWING: Figure 1
Patent JP-2018141061-A (JP)
Title: Curable composition, method for producing curable composition and cured product
Inventor: ONO YASUNOBU
IPC: B32B27/38
Filed: 2017-02-28
Abstract: PROBLEM TO BE SOLVED: To provide: a curable composition having low viscosity and capable of obtaining a cured product excellent in adhesiveness; a method for producing the cured product; and a cured product.SOLUTION: There is provided a curable composition which comprises a cationic polymerizable component (A) and a cationic polymerization initiator (B), where the curable composition essentially contains an aromatic bifunctional epoxy compound (Al-a) and an aromatic trifunctional epoxy compound (Al-b) as the cationic polymerizable component (A), the total of the aromatic epoxy compounds (A1) is a main component as the cationic polymerizable component (A). The ratio of the aromatic bifunctional epoxy compound (Al-a) to the aromatic trifunctional epoxy compound (Al-b) preferably is 90:10 to 60:40.SELECTED DRAWING: None
Patent JP-2018140367-A (JP)
Title: NOx OCCLUSION REDUCTION TYPE CATALYST AND METHOD FOR MANUFACTURING SAME
Inventor: HAMAGUCHI TAKESHI
IPC: B01J23/89
Filed: 2017-02-28
Abstract: PROBLEM TO BE SOLVED: To provide a NOx occlusion reduction type catalyst that can easily release sulfur even in the case of sulfur poisoning, and thereby can realize excellent NOx purification performance.SOLUTION: Provided is a NOx occlusion reduction type catalyst characterized by comprising a carrier containing a complex oxide of iron, magnesium and aluminum and a NOx occlusion material supported on the carrier and containing an active metal comprising a noble metal and at least Ba, represented by the following composition formula: MgFeΔAlO(In the formula, Δ represents a defect site of iron and magnesium, x is 0.02 to 0.70, y is 0.02 to 0.60, and x + y is 0.04 to 0.80.).SELECTED DRAWING: None