baber/WOPTO huggingface dataset:
Patent JP-2004528322-A (JP)
IPC: A01G7/00
Filed: 2002-04-11
Abstract: A water-soluble granular composition including at least 40% of at least one plant growth regulator, at least one binder, at least one disaccharide and at least one surfactant; as well as methods for making and using the composition are disclosed. The water-soluble granular composition advantageously improves preparation of a solid plant growth regulator formulation for spray application, as such composition swiftly dissolves, is easily metered for application, can be more highly concentrated and is dust-free. A presently preferred water-soluble granular composition includes at least 40% of at least one gibberellin as the plant growth regulator.
Patent JP-2005505248-A (JP)
Title: 非メバロン酸イソプレノイド経路の中間体及び酵素
IPC: C12P9/00
Filed: 2002-04-10
Abstract: 本発明は、イソプレノイドの非メバロン酸経路の、２Ｃ−メチル−Ｄ−エリスリトール２，４−シクロ二リン酸の１−ヒドロキシ−２−メチル−２−ブテニル４−二リン酸、特にその（Ｅ）型への酵素的変換に機能する形のタンパク質を提供する。本発明はまた、１−ヒドロキシ−２−メチル−２−ブテニル４−二リン酸、特にその（Ｅ）型をイソペンテニル二リン酸及び／又はジメチルアリル二リン酸への酵素的変換に機能する形のタンパク質も提供する。さらに、これらのタンパク質の阻害物質のスクリーニング法も提供する。さらに、１−ヒドロキシ−２−メチル−２−ブテニル４−二リン酸、その調製の化学的及び酵素的方法を提供する。
Patent JP-2004530847-A (JP)
Title: 無段変速機
IPC: F16H35/00
Filed: 2002-04-25
Abstract: 回転するようにまたは直線に動く機械および乗り物において使用する無段変速機が、開示される。変速機は、使用者のための簡易な手動シフト方法を提供する。さらに、トラクションローラー型変速機の実際の商品化には、変速機の信頼性、シフトのしやすさ、機能および簡易さにおける改良が必要である。本発明は、変速機を必要とする種々のタイプの機械について使用可能な無段変速機を含む。例えば、変速機は、（ｉ）自動車、オートバイ、船のようなモーター付きの乗り物、（ｉｉ）自転車、三輪車、片足スケート、運動設備のようなモーターのない乗り物、（ｉｉｉ）ボール盤、動力生成設備、または繊維工場のような工業設備において使用可能である。
Patent JP-2004520760-A (JP)
Title: 動き記述子を用いてビデオを要約化する方法
IPC: G06F17/30
Filed: 2002-04-22
Abstract: 方法は、圧縮ビデオにおける動きアクティビティの強度を測定する。動きアクティビティの強度を用いて、ビデオを累積動きアクティビティの等しいセグメントに分割する。次に、各セグメントからキーフレームを選択する。選択されたキーフレームを時間順に連結して、ビデオの要約を形成する。
Patent JP-2005505315-A (JP)
IPC: A61F2/00
Filed: 2002-05-15
Abstract: This invention relates to devices and instruments for implant insertion through a posterior lateral opening to the disc space. The instruments inclu de an implant inserter, and the devices include a spinal fusion implant engageable by the implant inserter. The implant provides bilateral support o f the adjacent vertebrae when inserted into the disc space from a postero- lateral approach.
Patent JP-2004527968-A (JP)
Title: パラメトリックバーチャルスピーカー及びサラウンド音響システム
IPC: H04R3/00
Filed: 2002-05-07
Abstract: 少なくとも部分的に反射性の環境（１２、１３、１４、又は１５）と関連して、音響スピーカーと組み合わせて、少なくとも一つの遠隔のバーチャルスピーカー位置を発生するため、聴取者（５３）が元々の音源と知覚する反射環境からのバーチャル音源を含む多くの音響効果を発生するためのシステムを提供する。これは、聴取者に向かって音響圧縮波を放出することによって直接的一次音響出力を発生し、前記音響スピーカーから離れた少なくとも一つのバーチャルスピーカー（２４、２５、又は２６）から間接的二次音響出力を発生することによって、音響スピーカーと関連した、前記音響スピーカーから遠隔の少なくとも一つの反射環境に向かって配向された少なくとも一つのパラメトリックスピーカー（２０、２１、又は２２）から超音波を放出することによって行われる。
Patent JP-2004537291-A (JP)
Title: 新規混合系統キナーゼ（７）（ｍｌｋ７）ポリペプチド、それをコードするポリヌクレオチド、およびそれらの使用方法
IPC: C12N1/15
Filed: 2002-05-23
Abstract: 本発明は、単離された混合系統キナーゼ（７）（ＭＬＫ）ポリヌクレオチド、発現ベクター、宿主細胞、単離されたポリペプチド、ポリペプチドの製造方法、単離された抗体、前述を有する組成物、ポリペプチドもしくはポリヌクレオチドを結合する化合物の同定方法、および、ポリペプチドの活性を調節する化合物の同定方法を提供する。
Patent JP-2003279656-A (JP)
Title: Improved type scintillator sealing for solid state x-ray detector
Inventor: VAFI HABIB
IPC: H01L31/0203
Filed: 2003-01-08
Abstract: <P>PROBLEM TO BE SOLVED: To provide an improved design for a solid state X-ray detector that decrease the moisture diffusion amount occurring through seals used to attach a cover 58 to a glass panel substrate 52 capable of protecting a scintillator 54 from moisture damage.  <P>SOLUTION: In one embodiment, a second hermetic or semi-hermetic seal is provided between the scintillator 54 and the outside environment to increase a path through which moisture must travel to reach the scintillator 54. In another embodiment, a metal frame 90, preferably a Kovar (R) frame, is hermetically or semi-hermetically sealed to the cover 58 and the glass panel substrate 52, so as to reduce the moisture amount diffused through the semi-hermetic seal compared with that in the prior art.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004211495-A (JP)
Title: Multiple dwelling house building
Inventor: SAKURABA NORIHIKO
IPC: E04H9/02
Filed: 2003-01-08
Abstract: <P>PROBLEM TO BE SOLVED: To provide a safe, comfortable and economically superior multilayer multiple dwelling house building.  <P>SOLUTION: This multiple dwelling house building functionally divides an inside area of a core tube frame 9 as a common zone and an outside area as a living room zone 11. A plumbing zone 12 is arranged in the inside area of an inner peripheral tube frame 7 in the living room zone 11. A common corridor 13b is arranged along a divided shaft 14 formed in a curb shape in the common zone 10. The common zone 10 is divided into nine areas, and a floor nonexistent vertical directional first communicating space 18a is formed in the respective divided areas opposite onto a pair of diagonal lines positioned in an even angle part of the core tube frame 9, and a core shaft is arranged for inclusively housing various common pipe equipment.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004211023-A (JP)
Title: Self-adhesive tape
Inventor: YATAGAI TAKAHIRO
IPC: C09J7/02
Filed: 2003-01-08
Abstract: <P>PROBLEM TO BE SOLVED: To provide a self-adhesive tape which can keep a base material in its good feeling, has a proper rewinding power, and is excellent in workability, for example, for sticking.  <P>SOLUTION: The self-adhesive tape has a self-adhesive layer set on the one side surface of a polyolefine base material and a release layer set on another side where a self-adhesive layer is not formed, and the release layer is composed of a polyolefine as the base polymer and at least one polymer selected from among an ethylene-vinyl acetate copolymer, an ethylene-ethyl acrylate copolymer, and an ultra-low density polyethylene as the additive.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004219502-A (JP)
Title: Light guide
Inventor: NAMEKI TAKESHI
IPC: G02B6/04
Filed: 2003-01-10
Abstract: <P>PROBLEM TO BE SOLVED: To provide a light guide in which there is little wastage of an optical fiber and whose lifetime is long.  <P>SOLUTION: A light guide A has an optical fiber 1 consisting of a plurality of optical fiber lines and the optical fiber 1 is fixed to metal fixtures 9,9 with binding rings 10,10 at both end parts of it and it is fitted and inserted into the inside of a flexible tube 5. An inside net tube 2 is attached to the outside of the optical fiber 1 and moreover an outside net tube 3 is attached to the outside of the inside net tube 2 and the inside net tube 2 is closely stuck to the fiber 1 and the outside net tube 3 is attached to the inside net tube 2 with a prescribed interval from the tube 2. The tube 3 is attached so as to cover end parts of the tube 2 and it is fixed with fixing rings 30. Moreovre, rubber rings 21 are locked on the fiber 1 by rubber rings 21 and the light guide A is made so that the tube 2 moves on the fiber 1 in accordance with bending of the light guide A and the tube 2 grows accustomed to the bending.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004215785-A (JP)
Title: Game machine
Inventor: ENOMOTO HIROSHI
IPC: A63F7/02
Filed: 2003-01-10
Abstract: <P>PROBLEM TO BE SOLVED: To provide a game machine which can easily report required game information by a simple operation of one push button switch.  <P>SOLUTION: This game machine is equipped with an operation means 13 which a game player can optionally operate and a notification means 14 which reports various game information regarding the game machine based on the operation of the operation means. In the game machine, a game state identification means which identifies the state of the game machine at the point when the operation means is operated is provided. Then, the game information which is selected depending on the game state at the point when the game state is identified by the game state identification means is reported by the reporting means.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004006240-A (JP)
Title: Ion-conducting material
Inventor: MIZUTA KEIICHIRO
IPC: H01M10/052
Filed: 2003-01-14
Abstract: <P>PROBLEM TO BE SOLVED: To provide an ion-conducting material improved in ion conductivity and durability against water, capable of restraining causticity to an electrode or the like, and expected to be stable with time.  <P>SOLUTION: This ion-conducting material is characterized by containing a compound expressed by Formula (1), wherein X is one or more kinds of elements selected from a group comprising boron, nitrogen, aluminum, silicon, phosphorus, arsenic and selenium; M is one or more kinds of elements selected from a group comprising alkaline metals, alkaline-earth metals, transition metals and rare-earth metals; M<SP>1</SP>and M<SP>2</SP>may be the same or different from each other, each expressing an organic linking group; (a) is an integer of one or more; and (b), (c) and (d) each are an integer of zero or more.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004219226-A (JP)
Title: Semiconductor inspection device
Inventor: OCHIAI TAKEYOSHI
IPC: G01R31/26
Filed: 2003-01-14
Abstract: <P>PROBLEM TO BE SOLVED: To provide a semiconductor inspection device capable of reducing the manufacturing cost.  <P>SOLUTION: This semiconductor inspection device is equipped with a test head part 2 for connecting a tester to a semiconductor device 11 to inspect the electrical characteristics of the semiconductor device 11, a contact head part 3 for pressurizing the semiconductor device 11 to the head part 2 side to stably holding a connection between the semiconductor device 11 and the tester, a supply/discharge part 4 for forming a space used for supplying the semiconductor device 11 to the test head part 3 while discharging it from the test head part 3, and a conveyance part 5 for conveying the semiconductor device 11 to the test head part 3 and to the supply/discharge part 4.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2003239817-A (JP)
Title: Driving method for internal combustion engine, computer program, open control and/or closed loop controller and internal combustion engine
Inventor: REMBOLD HELMUT
IPC: F02D45/00
Filed: 2003-01-14
Abstract: <P>PROBLEM TO BE SOLVED: To improve a starting characteristic and a driving characteristic of an internal combustion engine driven correspondingly when a driving temperature is high.  <P>SOLUTION: A pressure in a pressure area enhanced with respect to a peripheral pressure is maintained after stopping the internal combustion engine. Operation normality of a shut off valve gear which has to be closed for maintaining the pressure is inspected by detecting the pressure in the pressure area after stopping the internal combustion engine, controlling driving of the shut off valve gear so it is opened if a function is normal, detecting the pressure in the pressure area again after at least one passage of a predetermined time after opening driving control, and comparing it with the previously detected pressure.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003279748-A (JP)
Title: Polarization film and image display
Inventor: SUGINO YOICHIRO
IPC: G02B5/30
Filed: 2003-01-15
Abstract: <P>PROBLEM TO BE SOLVED: To provide a polarization film for avoiding the occurrence of warpage.  <P>SOLUTION: A dichromatic substance is adsorbed on a non-oriented film for orientation to obtain a polarization film whose modulus of elasticity is 3,500 N/mm<SP>2</SP>or less. The optical characteristics of the polarization film preferably have a transmittance of 43% or higher and a degree of polarization of 98% or higher. An oriented film (polarizer) obtained by orientation is preferably a polyvinyl alcohol-based film whose thickness is 20 μm or less. A transparent protection layer is laminated on at least one surface of the polarizer to obtain a polarizing plate.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004225564-A (JP)
Title: Control system of hybrid vehicle
Inventor: YUASA HIROYUKI
IPC: B60L50/16
Filed: 2003-01-20
Abstract: <P>PROBLEM TO BE SOLVED: To restrain a braking force change by regenerative power generation while performing the regenerative power generation according to a charging quantity SOC of a battery in braking.  <P>SOLUTION: In the braking, a request for an engine brake (friction + pumping resistance) is determined from request braking force, regenerative braking force corresponding to a regenerative power generation request according to the charging quantity SOC of the battery and hydraulic braking force, and the pumping resistance of an engine is adjusted so as to coincide with a request for the engine brake. An adjustment of the pumping resistance is made by control of throttle opening in an electronic control throttle and the valve timing (a valve overlap quantity) of an intake valve.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004046067-A (JP)
Title: Manufacturing method for birefringent layer and optical film including the same
Inventor: MURAKAMI NAHO
IPC: H01L51/50
Filed: 2003-01-21
Abstract: <P>PROBLEM TO BE SOLVED: To provide a manufacturing method for a birefringent layer which has its in-surface phase difference and orthogonal transmissivity suppressed.  <P>SOLUTION: The manufacturing method for the birefringent layer includes processes of coating a base material with a material forming the birefringent layer and drying the applied forming material to form the birefringent layer on the base material, and uses as the base material a resin-made base material whose size variation quantity, shown by equation (A), after the coating process and drying process is ≤1 %. Here, the size variation quantity (%) is (¾X-Y¾/X)×100, where X is the length of the resin-made base material before the coating process and Y is the length of the resin-made base material after the coating process and drying process, X and Y being the lengths in the same direction.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004227418-A (JP)
Title: Information medium
Inventor: NAKAMURA JUNICHI
IPC: G06K19/00
Filed: 2003-01-24
Abstract: <P>PROBLEM TO BE SOLVED: To provide an information medium equipped with communications and processing means which exchanges information with an external medium and processes the information, and which is used on at least two applications utilizing different power supply systems.  <P>SOLUTION: The information medium comprises a communications and processing means that exchanges information with an external medium and processes the information; an internal battery; a power supply part that receives power supply from an external source; a wake-up part that detects a wake-up signal from an external source; and a power supply control part that controls power supply to the communications and processing means to be made from the power supplied to the power supply part, instead of the internal battery, when there is a power supply to the power supply part from an external source, and controls the power supply to the communications and processing means to be made from an output of the internal battery, instead of the power supply part when there is no power supply to the power supply part from an external source and the wake-up part detects a wake-up signal.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004233088-A (JP)
Title: Electrostatic movable mechanism, resonant device, and angular velocity sensor
Inventor: MOCHIDA YOICHI
IPC: G01C19/5747
Filed: 2003-01-28
Abstract: <P>PROBLEM TO BE SOLVED: To increase an amplitude of an electrostatic movable mechanism when the mechanism resonates by increasing the electrostatic force when a mobile electrode is at an initial position.  <P>SOLUTION: A vibration generating section 31 composed of driving electrodes 25 and 28 is attached to each outside mass section 10 and 11. On the electrode plates 27 and 30 of the driving electrodes 25 and 28, tapered step parts 27C and 30C having inclined step part surfaces 27D and 30D are respectively formed and, at the same time, inclined front end faces 27F and 30F are formed on the front end sections 27E and 30E of the plates 27 and 30. In addition, the electrode plates 27 and 30 are disposed so that their inclined front end faces 27F and 30F may face the inclined step part surfaces 30D and 27D of the opposite plates 30 and 27. Consequently, the amplitudes of the outside mass sections 10 and 11, etc., can be increased, because the electrostatic force can be increased by increasing the number of lines of electric forces between the inclined front end faces 27F and 30F and the inclined step part surfaces 30D and 27D.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004232003-A (JP)
Title: Aluminum alloy brazing sheet with excellent corrosion resistance
Inventor: MATSUMOTO KATSUYA
IPC: B23K35/40
Filed: 2003-01-29
Abstract: <P>PROBLEM TO BE SOLVED: To provide an aluminum alloy brazing sheet which can impart a satisfactory sacrificial anode effect and prevent the occurrence of pitting corrosion and accordingly has excellent corrosion resistance even under severe corrosive environments and is suitably used for automotive heat exchangers such as condenser, evaporator and radiator.  <P>SOLUTION: The aluminum alloy brazing sheet is constituted by using a core material which consists of 0.4 to 1.0% Cu, 0.5 to 1.0% Mn, ≤0.15% Si, 0.05 to 0.4% Fe and the balance Al with inevitable impurities and in which the number of ferrous compound particles with a size of ≥1.0μm is controlled to ≤1.0×10<SP>4</SP>pieces/mm<SP>2</SP>and cladding one side of both sides of the core material with a brazing filler metal.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004236008-A (JP)
Title: Piezo-electric oscillating member, piezo-electric device using the same, and cell phone unit and electric apparatus using piezo-electric device
Inventor: KIKUSHIMA MASAYUKI
IPC: H03H9/19
Filed: 2003-01-30
Abstract: <P>PROBLEM TO BE SOLVED: To provide a piezo-electric oscillating member for restricting a CI value, by preventing a deterioration in oscillating characteristics caused by a difference of stiffness between right and left swinging arms.  <P>SOLUTION: A tuning-fork type piezo-electric oscillating member 32 made up of a piezo-electric material with anisotropic characteristics by etching has a pair of oscillating arms 34, 35 extending in parallel from a base 51. The piezo-electric oscillating member 32 has a crotch 37 located between each oscillating arm of the base 51. The crotch has a notch 70 extending in a direction to which each oscillating arm extends, and located at a center of the base in a widthwise direction or from the center, located at a position nearer to one arm with higher rigidity out of each oscillating arm.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004178780-A (JP)
Title: Static elimination and tone quality improving method of optical disk by using tourmaline
Inventor: MOCHIDA YUTAKA
IPC: G11B23/50
Filed: 2003-01-31
Abstract: <P>PROBLEM TO BE SOLVED: To provide a means which has an effect to eliminate static electricity and dirt and can be easily used every time when an optical disk which is easily electrified by air friction due to high speed rotation is loaded.  <P>SOLUTION: Charge of static electricity is prevented and charged dirt is eliminated by wiping the surface of the disk with a cleaner of a sheet like velvety cloth 1 formed by using tourmaline ore and by its static electricity preventing effect. A tourmaline ore-containing sheet is cut in a necessary size and stuck to the disk to suppress and prevent static electricity generated by friction with air in the inside of a CD player. Static electricity is prevented by fixing 1 to 2 g sliced piece of the tourmaline ore to the inside of the player. Static electricity is eliminated by washing the disk using minus ion water prepared by the tourmaline ore. Fine particles of the tourmaline ore are mixed into a paint and the resultant paint is applied and stuck onto a label face of the disk to prevent charge of static electricity.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2004231854-A (JP)
Title: Red light-emitting fluorescent material and luminescent composition
Inventor: HASE TAKASHI
IPC: C09K11/66
Filed: 2003-01-31
Abstract: <P>PROBLEM TO BE SOLVED: To provide a red light-emitting fluorescent material and a luminescent composition each having high brightness and scarcely causing deterioration of brightness with time under excitation by electron beam, particularly having ≤10 KV low accelerated voltage without using a harmful substance such as cadmium and suitable for application to fluorescent character display tube (VFD), field emission display (FED), etc.  <P>SOLUTION: The red light-emitting fluorescent material has a composition represented by general formula: (In<SB>1-x</SB>Eu<SB>x</SB>)<SB>2</SB>O<SB>3</SB>-n(Si<SB>1-y</SB>Ge<SB>y</SB>)O<SB>2</SB>[wherein n, x and y each represents a number satisfying the formulas 0.9≤n≤2.7, 0.0001≤x≤0.2 and 0≤y≤0.5]. The luminescent composition is composed of a mixture of the fluorescent material with a conductive substance.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004232787-A (JP)
Title: Obstacle detecting device and its mounting structure
Inventor: FUKUDA KOJI
IPC: B60R19/48
Filed: 2003-01-31
Abstract: <P>PROBLEM TO BE SOLVED: To provide an obstacle detecting device capable of improving the assembling workability by reducing the work done from the inside of an outer face of a vehicle.  <P>SOLUTION: An obstacle detecting part is fixed to the outer face of the vehicle by bringing a fixing member of a spacer into contact with the vehicle by inserting the obstacle detecting part into the spacer.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004230062-A (JP)
Title: Mattress device
Inventor: YASUNAKA SHIGERU
IPC: A47C27/15
Filed: 2003-01-31
Abstract: <P>PROBLEM TO BE SOLVED: To exhibit a good body pressure dispersing function, provide a stable sensation of use by making a mattress device gentle fit, securely support the waist and prevent an excessive sink.  <P>SOLUTION: The mattress device is formed by laminating a two-layer urethane foams 10 and 11, and a inner cotton 12 and covering with a top fabric 14 and an underlining 15 and quilting. The urethane foams 10 and 11 are made of low-resilience urethane foams. The urethane foam 11 is given a plurality of corrugated protrusions 13 on the underside thereof by profiling.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004241937-A (JP)
Title: Wireless communication system
Inventor: AOKI NORIHITO
IPC: H04W36/08
Filed: 2003-02-04
Abstract: <P>PROBLEM TO BE SOLVED: To efficiently set communication parameters when a wireless LAN terminal roams among a plurality of wireless access points.  <P>SOLUTION: Before the wireless LAN terminal STA0 connected to a wireless access point AP1 actually needs to roam to a second wireless access point AP1 adjacent to the AP1, communication parameters of an adjacent access point such as the AP1 are provided from a KIR server 400 in advance. Consequently, even when the moving speed of the STA0 is high, communication with the AP1 as a movement destination can be carried on.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004241560-A (JP)
Title: Piezoelectric actuator driver
Inventor: KODEKI KAZUHIDE
IPC: H01L41/09
Filed: 2003-02-05
Abstract: <P>PROBLEM TO BE SOLVED: To provide a piezoelectric actuator driver which can determine the failure of a piezoelectric actuator 9 and a drive signal amplifier circuit 4, and can protect the piezoelectric actuator 9 from an applied abnormal voltage in the failure.  <P>SOLUTION: The piezoelectric actuator driver includes a failure determination unit 11 which estimates a voltage and a current applied to a piezoelectric actuator 9 based on a drive signal generated in a drive signal generator 1, and determines the failure of the piezoelectric actuator 9 and a drive signal amplifier circuit 4 by comparing the estimated voltage and current with a detected voltage in a voltage detection circuit 8 and a detected current in a current detection circuit 10, and a switchover determination circuit 16 which switches over the voltage supplied to the piezoelectric actuator 9 from the drive signal amplifier circuit 4 depending on the determining the result. The switchover determination circuit 16 can protect the piezoelectric actuator 9 from the applied abnormal voltage in the failure by interrupting the voltage supplied to the piezoelectric actuator 9 from the drive signal amplifier circuit 4 when the failure is determined by the failure determination unit 11.  <P>COPYRIGHT: (C)2004,JPO&NCIPI