baber/WOPTO huggingface dataset:
Patent JP-2014504846-A (JP)
Title: スイッチモードインバータを負荷に接続するための相互接続
IPC: H05B6/68
Filed: 2012-01-18
Abstract: 【課題】  従来技術における欠点を改善する、スイッチモードインバータを負荷に接続するための相互接続を提供する。 【解決手段】  スイッチモードインバータを負荷に接続するための相互接続であって、複数の絶縁導体３１１−３１３、３２１−３２３と、絶縁導体をまとめてスリーブで覆うスリーブ手段３５１と、スリーブ手段と同心であり、スリーブ手段を部分的に取り囲んで複数の絶縁導体をまとめて保持する、少なくとも１つの損失性トロイダル・インダクタ・コア３５２とを含み、少なくとも１つの損失性トロイダル・インダクタ・コア３５２は、コモン・モード・インダクタとしての役割を果たすように配置されて、相互接続を通って負荷の浮遊容量まで流れる電流を最小化する。高周波の渦電流現象は、複数の絶縁導体の導電コアの直径、及び、導電コアの中心間の間隔を適切に選択することによって、相互接続で最小化されることが好ましい。 【選択図】      図３
Patent JP-2014510203-A (JP)
Title: 自動車用ドアロック
IPC: E05B77/54
Filed: 2012-02-08
Abstract: 本発明は、ロック機構（１、２、１５）が装備された自動車用ドアロックであって、前記ロック機構（１、２、１５）上の作動レバーユニット（３、４）と保持レバー（１０）に関するものである。前記保持レバー（１０）は前記作動レバーユニット（３、４）を、少なくとも与えられた大きさの加速力が発生した時、例えば、事故（衝突）の場合、無効な状態にする。本発明によると、前記保持レバー（１０）は、非偏角通常操作時の間と、唯一の偏角通常操作時のため前記作動レバーユニット（３、４）を解除しながら衝突の場合、前記作動レバーユニット（３、４）の回転を防止する。   【選択図】      図１
Patent JP-2014513152-A (JP)
Title: ガソリンのベンゼン含有量を低減する方法
IPC: C10G35/095
Filed: 2011-02-07
Abstract: 【解決手段】ガソリン流、たとえば改質油または軽質ナフサのベンゼン含有量を低減する方法が、当該ガソリン流を反応ゾーンにおいてオレフィンアルキル化剤でアルキル化することを含む。Ｃ５〜Ｃ１０パラフィンを含んでいるパラフィン流が当該アルキル化反応ゾーンの入口に供給される。 【選択図】図１
Patent JP-2014506761-A (JP)
Title: ２点変調デジタル位相ロックループ
IPC: H03L7/06
Filed: 2012-02-08
Abstract: ２点変調デジタル位相ロックループ回路が開示される。本回路は、複数の周波数間で切替え可能なサンプリングクロック入力を含む。本回路は、低域通過変調データを受信するフィードバック経路内のシグマデルタ変調器も含む。本回路は、高域通過変調データを受信する電圧モードデジタルアナログ変換器（ＶＤＡＣ）も含む。本回路は、フィードバック経路およびＶＤＡＣの出力部に結合されたアナログ電圧制御発振器も含む。本回路は、フィードバック経路、サンプリングクロックおよびループフィルタに結合された位相デジタル変換器（ＰＤＣ）も含む。
Patent JP-2014512868-A (JP)
Title: 高密度焦点式超音波のサブアパーチャ制御方法およびシステムならびに非一時的なコンピュータ可読記憶媒体
IPC: A61B18/00
Filed: 2012-02-10
Abstract: 【課題】  高密度焦点式超音波のためのサブアパーチャ制御を提供する。 【解決手段】様々なサブアパーチャから試験送信が順次実行される。焦点領域での組織応答が決定され（４０）、これを用いてサブアパーチャが選択される（３２）。例えば、温度が一定のしきい値を超えないか、又は、介在骨又は減衰組織に関連付けられている場合のように、組織の変位が弱い場合、１つ又は複数のサブアパーチャは使用されない。焦点領域での組織応答の代わりに、又はそれに加えて、別の因子を使用してもよい。病変に対するサブアパーチャの相対近接（３４）、サブアパーチャの角度分布（３６）、治療対象の組織と比較したサブアパーチャの焦点領域の形状又はサイズ（３８）、又はこれらの組み合わせを使用できる。サブアパーチャが選択されると（３２）、各サブアパーチャの相対重量を各サブアパーチャの組織応答の測定値に基づいて調整し（４２）、様々なサブアパーチャからのより均等な治療寄与を提供することができる。 【選択図】      図２
Patent JP-2014513565-A (JP)
Title: 自動注射器
IPC: A61M5/145
Filed: 2012-02-16
Abstract: 本発明は、細長ケース（１２）内で自在に伸縮可能な管状シャーシ（２）と、シャーシ（２）内およびケース（１２）内に部分的に摺動可能に配置された管状キャリア（７）を備えたキャリア・サブアセンブリのキャリア（７）が、中空注射針（４）を備えたシリンジ（３）、駆動ばね（８）、および駆動ばね（８）の荷重をシリンジ（３）のストッパ（６）へ送るためのプランジャ（９）を含むように構成され、シリンジ（３）がキャリア（７）とのジョイント軸方向並進運動のためにロック可能であるキャリア・サブアセンブリと、キャリア（７）の周りに配置された制御ばね（１９）と、制御ばね（１９）の近位端を針挿入のためにそれを前進させるためのキャリア（７）、またはシャーシ（２）のいずれかにカップリングするための針挿入制御機構（２４）とを備え、針挿入制御機構（２４）が、制御ばねにより近位方向（Ｐ）に付勢される第１のカラー（２０）を備え、少なくとも１つの第５のクリップ（２．１０）が、シャーシ（２）または第１のカラー（２０）の一方上に配置され、これは初期にはシャーシ（２）または第１のカラー（２０）の他方上のブロック（２０．７）に当接し、第５のクリップ（２．１０）とキャリア（７）との間の傾斜係合が、近位方向（Ｐ）へのキャリア（７）の並進運動により第５のクリップ（２．１０）を外側に偏向させるように設けられ、第５のクリップ（２．１０）の外側偏向およびキャリア（７）の近位方向（Ｐ）への並進運動が、初期には、ケース（１２）が第５のクリップ（２．１０）に外側に当接することにより防止され、ケース（１２）が少なくとも初期に遠位方向（Ｄ）に付勢され、   ケース（１２）が、前進位置へのシャーシ（２）に対する近位方向（Ｐ）への付勢に抗して並進運動するように配置され、これによりケース（１２）の第２の窓（１２．８）を第５のクリップ（２．１０）の外側後方に並進させ、かくして第５のクリップ（２．１０）をブロック（２０．７）からデカップリングし、第１のカラー（２０）がキャリア（７）に当接するのを可能にし、制御ばね（１９）の負荷の下でキャリア（７）を前進させるようにする外側偏向を可能にし、液体薬剤（Ｍ）の用量を投与するための自動注射器（１）に関する。
Patent JP-2014514004-A (JP)
Title: 増大された流体流れを有する手術プローブ
IPC: A61B17/3211
Filed: 2012-01-12
Abstract: 手術プローブ、例えば硝子体茎切除プローブ、及びこれらを作る方法が開示される。模範的な手術プローブは、チューブ状本体と、本体内に受容される切断工具とを含む。チューブ状本体は、本体の第１端部に近接する切断開口部と、切断開口部から本体の第２端部へ本体を通って延在する流体通路とを画定する。切断工具は本体内に受容され且つ流体通路内に配置される。切断工具は概して切断工具を通した流体流れを可能とするように構成される。切断工具は、本体部分と、切断開口部に入る物質を切断するように構成される刃部分とを含む。本体部分はチューブ状本体の内周の周りに部分的にのみ延在する。
Patent JP-2015129004-A (JP)
Title: Bubbling composite cap
Inventor: IGARASHI TOMOYA
IPC: B65D47/06
Filed: 2014-01-08
Abstract: PROBLEM TO BE SOLVED: To provide a bubbling cap in which a member of inhibiting capping such as a tube is not provided, and furthermore, it can easily be assembled with reduced components.SOLUTION: A bubbling composite cap includes a sealing cap 3 attached to the mouth part of a squeeze container, a tubular body 5 and a ceiling substrate 7, and an air tube 57 is provided inside of the tubular body 5 and a bubbling member 9 is attached to the upper part. The bubbling composite cap is configured as follows: a jetting tube 33 for jetting a container content liquid is set up in the upper surface of the ceiling substrate 7; the bubbling member 9 includes a substrate 60 for forming an air conduit and a flow path of a gas-liquid mixed flow Q formed in a bottom side of the substrate 60 for forming an air conduit; a flow path of an air flow Z ranging to a flow path of the air tube 57 and the gas-liquid mixed flow Q is formed between the upper surface of the substrate 60 for forming an air conduit and the lower surface of the ceiling substrate 7; the flow path of the gas-liquid mixed flow Q has a content liquid introduction hole 143, and further is brought into communication with the jetting tube 33; and at least one mesh member 103 is provided in a flow path of the gas-liquid mixed flow Q.
Patent JP-2014150056-A (JP)
Title: Composite negative electrode material for metal-air all-solid-state secondary battery, and metal-air all-solid-state secondary battery including the same
Inventor: SAKAMOTO HISATOSHI
IPC: H01M4/38
Filed: 2014-01-08
Abstract: PROBLEM TO BE SOLVED: To provide a composite negative electrode material for a metal-air all-solid-state secondary battery, high in power generation performance and good in electrochemical characteristics.SOLUTION: A composite negative electrode material for a metal-air all-solid-state secondary battery of the present invention includes: first metal or an oxide of the first metal which reacts with hydroxide ions to emit electrons; and a sulfide MaSb of second metal (where M is the second metal and represents an element in the group 1, group 8, group 14 or group 15 of the periodic table, and a and b are values determined so as to become electrically neutral according to the valance of the M).
Patent JP-2015136221-A (JP)
Title: Mobile electronic device and charge control method
Inventor: MATSUMOTO SHUJI
IPC: H02J7/00
Filed: 2014-01-16
Abstract: PROBLEM TO BE SOLVED: To suppress heat generation of a charge terminal.SOLUTION: A mobile electronic device 1 has: a charge terminal 111 for a cradle connector 11; a battery 19; a resistor 14; and a processor 17. The charge terminal 111 for the cradle connector 11 can be in contact with a charge terminal 21 of the cradle 2. The battery 19 is charged by power supplied by an external power source via the charge terminal 111. The resistance 14 is provided between the charge terminal 111 and the battery 19. The processor 17 measures voltage values V, Vof both ends of the resistor 14 and calculates a consumption power value P at a contact point between the charge terminal 21 and the charge terminal 111 on the basis of the voltage values V, Vof both ends of the resistor 14, a voltage value Vin the charge terminal 21 of the cradle 2, and a resistor value Rof the resistor 14. The processor 17 stops charging the battery 19 when the consumption power value P at the contact point between the charge terminal 21 and the charge terminal 111 is equal to or larger than threshold.
Patent JP-2015136890-A (JP)
Title: Resin-coated aluminum sheet and method for producing the same
Inventor: SHOJI MAKOTO
IPC: B05D7/24
Filed: 2014-01-23
Abstract: PROBLEM TO BE SOLVED: To provide a resin-coated aluminum sheet having improved processability of a coating film while suppressing occurrence of scratches and blocking, and being suitable for producing a capacitor case and the like having a high deep drawing ratio.SOLUTION: Provided is a resin-coated aluminum sheet having an anodic oxide film formed on a surface of pure aluminum or an aluminum alloy and, at the same time, having a resin film of a thickness of 20 μm or less on the anodic oxide film. The resin film includes an epoxy-based resin as a main component and contains, as an additive, a melamine resin in a proportion of 1 to 15 mass% relative to a total weight of the resin film. In the resin film, when a range of 10% thickness from the outermost surface and the rest except this part are defined as a surface layer part and a deep layer part, respectively, and when carbon concentrations derived from the melamine resin in the surface layer part and the deep layer part, as determined by X-ray photoelectron spectroscopy, are denoted by Cs and Ci, respectively, these satisfy: 1.5<(Cs/Ci)≤20.
Patent JP-2015141072-A (JP)
Title: Car onboard system and portable terminal
Inventor: YANAIDA TAKESHI
IPC: G01C21/26
Filed: 2014-01-28
Abstract: PROBLEM TO BE SOLVED: To improve the accuracy of displayed information.SOLUTION: Provided is a car onboard system 1000 in which a portable telephone 100 and a HUD device 200 are connected so as to be able to communicate each other. The portable telephone 100: acquires current position information while executing an application; creates navigation information and transmits it from a transmission unit; acquires a vehicle speed and a communication delay time until a vehicle display device displays the navigation information after receiving it; calculates, from the current position information and the vehicle speed, arrival time until a prescribed place is reached; and determines transmission of the navigation information on the basis of the arrival time and the communication delay time. The HUD device 200 causes the received navigation information to be displayed by a display unit 206.
Patent JP-2015140753-A (JP)
Title: fuel injection nozzle
Inventor: HIJIMA TOSHIAKI
IPC: F02M61/18
Filed: 2014-01-30
Abstract: PROBLEM TO BE SOLVED: To restrict a reduction in flow rate coefficient and keep a penetration force of injection at a nozzle for injecting fuel to an internal combustion engine even when a lift amount where an injection hole does not become an orifice is small.SOLUTION: According to a nozzle 1 of this invention, a seat surface 9 and a side surface 15 in a sectional plane including an axis 3α of a nozzle body 3 are smoothly continuous by a circular arc (a suck R part 17) internally contacted with both the seat surface 9 and the side surface 15. In addition, a part in a needle 2 which is on a more axial extremity end portion than a seat part 10 is a certain cone of which diameter is more reduced at an axial extremity end side. With such an arrangement, no corners are found at the seat surface 9 and the side surface 15, and the seat surface 9 and the side surface 15 become one smooth continuous curved surface. Due to this fact, since it is possible to restrict occurrence of cavitation at a suck chamber 12, even when a small lift amount occurs to cause an injection hole 11 not to become an orifice, it is possible to restrict a reduction in flow rate efficiency and to keep a penetration force of atomization.
Patent JP-2015143630-A (JP)
Title: System for providing position information, storage device, terminal device, and method for providing position information
Inventor: YAMAUCHI MASAICHI
IPC: G01C21/28
Filed: 2014-01-31
Abstract: PROBLEM TO BE SOLVED: To provide precise current position information even if the positioning of the current position is impossible.SOLUTION: A server communication part 17, which communicates with a server 7, is rendered accessible to a beacon position DB9 that stores a beacon ID and installation position information of a beacon device 2 associated with each other. When a positioning part 12 cannot provide first current position information of a terminal device 4 because of the failure to receive a GPS signal, a beacon signal receiving part 13 receives a beacon signal to acquire a beacon ID. A processing part 11, which refers to the beacon position DB9, acquires the installation position information of the beacon device 2 corresponding to the acquired beacon ID and provides second current position information of the terminal device on the basis of the installation position information.
Patent JP-2014123570-A (JP)
Title: Electric heater, and heating device comprising the same
Inventor: KITAMURA KIMIO
IPC: F27D11/02
Filed: 2014-01-31
Abstract: PROBLEM TO BE SOLVED: To provide an electric heater capable of reducing heat capacity of an insulator and equalizing temperature distribution by reducing an exposed area of the insulator to a heating space in order to improve response of temperature rise and drop, and to provide a method of manufacturing the electric heater, and a heating device.SOLUTION: An electric heater comprises: a plate-like heating element 10 in which a current path is formed by forming a slit; and insulators 20 supporting the heating element 10. The heating element 10 is supported by the insulators 20 at a pair of width direction end parts 13 and 13 located in a width direction X along the slit, of the heating element 10. Each insulator 20 located at each of the width direction end parts 13 and 13 is divided into at least two parts to a horizontal direction in the width direction X. The width direction end parts 13 are respectively locked between divided elements 21 and 22 obtained by dividing the insulator 20 into two, and fastening tools 30 fastening the divided elements 21 and 22 at parts above the width direction end parts 13 are provided respectively.
Patent JP-2015145684-A (JP)
Title: Terminal support device
Inventor: YAGI MIKIYA
IPC: F16C1/26
Filed: 2014-01-31
Abstract: PROBLEM TO BE SOLVED: To provide a terminal support device which prevents a damper member from rotating even when a control cable rotates.SOLUTION: A terminal support device 1 of the invention includes: a substantially cylindrical casing cap 3 to which an end part of an outer casing 22 of a control cable 2 is fixed; a damper member 4 attached to an outer periphery of one end of the casing cap 3; and a substantially cylindrical socket 5 having a storage part 51 where the one end of the casing cap 3 and the damper member 4 are stored. The socket 5 includes a protrusion 52 having a length in an axial direction of the socket 5 on an inner peripheral surface of the storage part 51. The damper member 4 includes a fitted part 43, in which the protrusion 52 of the socket 5 fits, on an outer peripheral surface of the damper member 4. The protrusion 52 of the socket 5 fits in the fitted part 43 of the damper member 4 thereby restraining the damper member 4 from rotating relative to the socket 5.
Patent JP-2015145319-A (JP)
Title: fired product containing anorthite
Inventor: OMURA KOHEI
IPC: C04B35/195
Filed: 2014-02-03
Abstract: PROBLEM TO BE SOLVED: To solve such a problem that an amorphous phase is apt to be generated when a fired product containing anorthite is obtained by using coal ash as a main component.SOLUTION: Such a raw material is used that the ignition residue thereof, after an ignition test is conducted at 950°C, contains 10-25 mass% of CaO, 10-30 mass% of AlO, 40-65 mass% of SiO, and 2-7 mass% of MgO. The raw material is fired at 1,000-1,400°C so that the fired product is obtained, which product contains 20-70 mass% of anorthite, 10-50 mass% of the total of augite, diopside, and hedenbergite, and 20 mass% or smaller of the amorphous phase.
Patent JP-2015148857-A (JP)
Title: Information browsing device, object selection control program, and object selection control method
Inventor: INOUE MASAYUKI
IPC: G06F3/041
Filed: 2014-02-05
Abstract: PROBLEM TO BE SOLVED: To easily and appropriately select one or more objects to be processed when the object is displayed in a hierarchical structure.SOLUTION: An information browsing device having a touch panel for displaying an object in a hierarchical structure includes: a state determination part for comparing detection information based on a signal output from the touch panel with predetermined reference information to determine a state that the object presses the touch panel or comes into contact with the touch panel; and an object selection part for selecting a first object in the uppermost layer among the objects displayed at the pressing position or the contact position as the object to be processed in accordance with the determination result of the state determination part, or for selecting the first object and one or more second objects at least partially overlapped with the lower layer of the first object and the first object.
Patent JP-2015148404-A (JP)
Title: Evaporator with cold storage function
Inventor: KAMOSHITA OSAMU
IPC: F25B1/00
Filed: 2014-02-07
Abstract: PROBLEM TO BE SOLVED: To provide an evaporator with a cold storage function which can suppress increase in weight.SOLUTION: An evaporator with a cold storage function includes a plurality of refrigerant circulation pipes 12 arranged in parallel shape at intervals with each other in a state where the longer direction faces the vertical direction and the width direction faces the ventilation direction. Out of all gaps 14A, 14B formed between the adjacent refrigerant circulation pipes 12, at one part of the plurality of gaps 14A, condensate water storage members 15 are arranged, and heat transfer fins 16 are arranged at the remaining gaps 14B. At the gaps 14B on both sides of the gaps 14A in which the condensate water storage members 15 are arranged, heat transfer fins 16 are located. On both left and right side surfaces of the condensate water storage members 15, two rows of ventilation passage rows 17A, 18A comprising a plurality of ventilation passages 17, 18 formed at intervals in the vertical direction are provided. At a leeward side end part of the ventilation passage 17 of the windward side ventilation passage row 17A and a windward side end part of the ventilation passage 18 of the leeward side ventilation passage row 18A are deviated in the vertical direction.
Patent JP-2015152946-A (JP)
Title: Electrode substrate for touch panel, touch panel, and display device
Inventor: IMAIZUMI TAKEAKI
IPC: G06F3/044
Filed: 2014-02-10
Abstract: PROBLEM TO BE SOLVED: To provide an electrode substrate for a touch panel for suppressing visual observation of stripe-like inconsistency in density caused by a detection electrode.SOLUTION: The electrode substrate 1 for a touch panel includes a plurality of detection electrodes 2s and 2r including conductor narrow lines 14s and 14r, respectively. Each conductor narrow line extends in the first direction in a polygonal or wave-like pattern. The plurality of conductor narrow lines are disposed separately from each other in the second direction crossing the first direction.
Patent JP-2014177395-A (JP)
Title: Organic vehicle for dispersion of glass composition and method of dispersion
Inventor: SAMSON SHAHBAZI
IPC: H01M8/02
Filed: 2014-02-12
Abstract: PROBLEM TO BE SOLVED: To provide a sealing composition which can be easily deposited onto fuel cell layers or substrates by using a decal transfer or syringe dispensing technique.SOLUTION: A sealing glass composition including about 30-95 wt.% glass or ceramic particles, and about 1-50 wt.% organic vehicle, wherein the organic vehicle comprises an acrylic resin component and a solvent, based upon 100% total weight of the sealing glass composition, wherein the composition has a viscosity of at least about 200 kcPs and no more than about 1,450 kcPs, is provided. Furthermore, a method of applying a sealing glass composition to a substrate comprises the steps of: providing a metal substrate; providing a supporting sheet having a front surface coated with a releasing agent; depositing a sealing glass composition onto the front surface of the releasable sheet according to a pre-determined pattern, and then drying the sealing glass composition to form a sealing glass composition decal; removing the sealing glass composition decal from the front surface of the supporting sheet; and placing the dried sealing glass composition decal onto a metal substrate.
Patent JP-2015154226-A (JP)
Title: Network control device, image processing device, control methods therefor and program
Inventor: KOIKE KOTARO
IPC: H04N1/00
Filed: 2014-02-14
Abstract: PROBLEM TO BE SOLVED: To provide a network control device, an image processing device, each control method therefor and a program, enabling easy exchange of an image among image processing terminals.SOLUTION: Before the execution of a slide show, control equipment, having a function of controlling other equipment in a network, transmits slide show information to a plurality of image processing devices in the network, and confirms that the slide show information reaches the plurality of image processing devices. During the execution of the slide show, the plurality of image processing devices refer to the slide show information to perform image delivery and image display.
Patent JP-2015152852-A (JP)
Title: Metal fitting
Inventor: NODA KENJI
IPC: G09F1/10
Filed: 2014-02-18
Abstract: PROBLEM TO BE SOLVED: To suppress damage to a metal material surface and the peeling off of a display tag that are caused by attaching the metal display tag to a metal binding band when the metal material is bound with the metal binding band and shipped.SOLUTION: A metal fitting 40 includes: a first portion 510; a second portion 520; a third portion 530; a fourth portion 540; and a fifth portion 550. The first portion 510 and the second portion 520 are arranged with an interval in a X axis direction at a length corresponding to the interval between two holes 310a, 301b of a display tag 30. The fourth portion 540 and the fifth portion 550 are connected to the other end portions 512, 522 of the first portion and the second portion, respectively, and hooked onto a hoop 20a. The third portion 530 is a portion connected to one end portions 511, 521 of the first portion 510 and the second portion 520, and fixes the display tag 30 by nipping it from both sides by the third portion 530, the first portion 510, and the second portion 520.
Patent JP-2015154864-A (JP)
Title: Reel type game machine
Inventor: OKADA WATARU
IPC: A63F5/04
Filed: 2014-02-21
Abstract: PROBLEM TO BE SOLVED: To provide a game machine that schedules a timing to generate a freeze state in a plurality of games ahead and generates in the scheduled game the freeze state regardless of the result of an inner lottery. 
     SOLUTION: When a game is shifted to a specific game mode (PD mode), an execution scheduled game of a special freeze state (PDRA) is scheduled in a prescribed plurality of games ahead. In the execution scheduled game, regardless of the result of an inner lottery, the special freeze state is configured to be executed. 
     COPYRIGHT: (C)2015,JPO&INPIT
Patent JP-2015162773-A (JP)
Title: intercom system
Inventor: ONO MASAHIRO
IPC: H04M9/00
Filed: 2014-02-27
Abstract: PROBLEM TO BE SOLVED: To secure safety during power supply by detecting abnormality of a voltage level of a DC power supply for supplying power to respective components of an intercom master apparatus, and controlling operation after the detection.SOLUTION: When abnormality (failure) occurs, in supplying power to respective components of an intercom master apparatus 2a, in a master apparatus DC-DC converter 25a capable of changing, to a prescribed voltage level determined for a master apparatus, output from a master apparatus power supply circuit 24a for rectifying commercial power supply to generate DC power supply; a master apparatus duty detection circuit 26a detects an oscillation duty of output from the master apparatus DC-DC converter, where output voltage having a voltage level corresponding to the oscillation duty is monitored by a master apparatus control circuit 29a. The master apparatus control circuit, on the basis of the voltage level of the output voltage to the master apparatus control circuit, confirms the abnormality (failure) in the master apparatus DC-DC converter, and controls a power supply changeover circuit 27a to change over a state of operation of power supply from the master apparatus power supply circuit to the master apparatus DC-DC converter from the ON state to the OFF state.