baber/WOPTO huggingface dataset:
Patent JP-2002125815-A (JP)
Title: Merchandise sales business model making use of movable merchandise display shelf
Inventor: KAIGAWA MITSUSHIGE
IPC: A47F3/06
Filed: 2001-11-28
Abstract: PROBLEM TO BE SOLVED: To provide merchandise sales business model which increases the area of merchandise display shelves placed in a retail store of the like without hindering crime prevention, and which can keep up with the consumption trend that varies according to the time slot. SOLUTION: Merchandise display shelves placed in a retail store or the like are made to be movable, and when a certain time slot comes, a movable display shelf part 2 is moved upward from an original position 3 to a moving position 1 in order to make an increased display area 4, where a number of merchandise which seals well during that time slot is displayed to appeal to the customers. This helps the stores to enhance the sales competitiveness of the merchandise and to keep up with the changing consumption trend. Also, after the time slot passes, the movable display shelf part 2 is moved downward from the moving position 1 back to the original position, and the problem of hindering crime prevention can be solved.
Patent JP-2003197449-A (JP)
Title: Zero-phase current transformer
Inventor: IWASAKI FUMIO
IPC: H01F38/28
Filed: 2001-12-26
Abstract: <P>PROBLEM TO BE SOLVED: To provide a method for manufacturing a wideband-frequency characteristic, low-cost, elliptic zero-phase current transformer with which a frequency band from a commercial frequency of a ground current to a surge frequency MHz at ground transient can be measured, and the ground point can be evaluated from the transmission speed.  <P>SOLUTION: A bar-shaped magnetic material of a superior high-frequency characteristics is used to be embodied on a part of a major side of the elliptic zero-phase current transformer having good low-frequency characteristics, an enameled wire is coarse wound around the center of the bar-shaped magnetic material to be connected as a secondary winding and is input to a control circuit as a pair with an input of the zero-phase current transformer, and the residual current rise can be controlled and detected from a low frequency to a high frequency for the frequency characteristics by an addition circuit of an internal operational amplifier.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003501310-A (JP)
Title: 自動車車輪の速度を形成する方法
IPC: B60T8/66
Filed: 2000-06-02
Abstract: (57)【要約】
本発明は、自動車の駆動方法に関するものであり、この自動車では車輪の速度を検出することができる。図面に示された本発明の方法によって、車輪がブロックされているか否か、センシング装置が故障しているか否かを検出することができる。
Patent JP-2003502119-A (JP)
IPC: A61M16/04
Filed: 2000-02-11
Abstract: A forehead support (10) is disclosed that is adapted to be secured to a respiratory mask (16). The forehead support (10) includes a joining member (14) for securing to the mask (16) and a cushion frame (12) pivotally mounted to the joining member (14). The cushion frame (12) is adapted to locate one or more forehead cushions (25). The cushion frame (12) is also adapted to pivot relative to the joining member (14). The cushion frame (12) is also selectively lockable at two or more predetermined angular positions relative to the joining member (14).  A respiratory mask assembly comprising a respiratory mask (16) and a forehead support (10) adapted to be secured to the mask (16) is also disclosed.
Patent JP-2003504617-A (JP)
Title: 気体混合物中の気体成分の濃度を測定するためのセンサ
IPC: G01N27/407
Filed: 2000-06-29
Abstract: (57)【要約】
本発明は、気体混合物の平衡調整を触媒しないか、もしくはほとんど触媒しない第一の測定電極（混合電位電圧）および気体混合物の平衡電圧調整を触媒する第二のセンサ（平衡電極）、ならびに両方の測定電極の間に配置された酸素伝導性固体電解質を有する、気体成分の濃度の決定のためのセンサに関し、その際、両方の測定電極は気体混合物によりさらされる。少なくとも第一の測定電極（１６）がサーメット電極であり、その際、サーメット電極の少なくとも１つの金属酸化物成分が可逆的に酸素を貯蔵することができる。
Patent JP-2004517343-A (JP)
Title: アナログ音声信号を自動見出しを付してデジタル記録する方法
IPC: G10L25/93
Filed: 2000-07-13
Abstract: アナログ音声信号を自動見出しを付してデジタル記録するための方法 アナログ音声信号を自動見出しを付してデジタル記録する方法であって、音声情報および信号休止を含むアナログ音声信号が読み込まれるステップと、アナログ音声信号が、音声情報データおよび信号休止期間データにより構成されるデジタル音声データに変換されるステップと、音声情報データが、メモリに情報データブロックとして記録され、信号休止期間データが、メモリに信号休止データブロックとして記録されるステップと、記録されたデータブロックが、連続的に読み込まれるとともに、見出し作成のためのデータ構造が形成されるステップとを具備し、予め定められた期間の信号休止によって中断されない一連の情報データブロックは、その開始と終了とが見出し表に記録された１つの密接した音声データシーケンスとして検出される。 【選択図】図１
Patent JP-2003508066-A (JP)
IPC: C12Q1/6855
Filed: 2000-09-01
Abstract: The present invention relates to a method of identifying a region (one or more) of a genome of a cell to which a protein of interest binds. In the methods described herein, DNA binding protein of a cell is linked (e.g., covalently crosslinked) to genomic DNA of a cell. The genomic DNA to which the DNA binding protein is linked is removed and combined or contacted with DNA comprising a sequence complementary to genomic DNA of the cell under conditions in which hybridization between the identified genomic DNA and the sequence complementary to genomic DNA occurs. Region(s) of hybridization are region(s) of the genome of the cell to which the protein of binds.
Patent JP-2003509332-A (JP)
IPC: C01F7/025
Filed: 2000-09-25
Abstract: A process for producing granules of a phosphorus doped activated alumina from aluminium hydroxide and a phosphorus source is described. The granules can be used as growth regulator, especially as low phosphorus buffer in potted plants.
Patent JP-2003513171-A (JP)
Title: 金属メッキ用のマスクがけ技術
IPC: C25D17/08
Filed: 2000-10-20
Abstract: (57)【要約】
複数のシーリング部材がその上に置かれているフレームを備えた物品を金属メッキするための装置である。このフレームは、シーリング部材間に電流を導通させることができ、各シーリング部材はその上に置かれることになる物品の部分と密に接触をするのに適応していて、それによって、液体が物品のその部分に接触したり、あるいは物品のもつ孔や窪みの中に入ったりすることが実質的にないようにし、さらに各シーリング部材はフレームと物品との間で電流が導通するのに適応しているようにする。
Patent JP-2003513087-A (JP)
IPC: C07D471/04
Filed: 2000-10-21
Abstract: A compound of general formula (I) wherein R and R<SUP>1 </SUP>are as defined herein, or a tautomer, diastereomer, enantiomer, or salt thereof, particularly the physiologically acceptable salts thereof, which have valuable pharmacological properties, particularly CGRP-antagonistic properties, pharmaceutical compositions containing the compound, their use, and processes for preparing them.
Patent JP-2003515073-A (JP)
IPC: F16B15/08
Filed: 2000-11-29
Abstract: A metal piercing fastener for securing a light gauge sheet metal layer to metal/non-metal substrate layer(s) includes an elongated metal body having a crown at one end a sharpened and hardened tip at the other end defining a rigid metal penetrating region. The crown receives an impact blow from a tool for driving the rigid metal penetrating tip region in the substrates to be fastened. The metal body is equipped with one or more resilient tines each twisted at the base around its longitudinal axis and which can be integral or coupled to the metal body to optimize the gripping and clamping capability of the metal piercing fastener. The resilient tine may be equipped with protruding gripping and clamping elements on each side or with ribs on one of its outer surfaces to provide spring action gripping and clamping capability during fastening. The resilient tine is capable of deflection to conform to the physical constraints of the pierced substrate opening when passing through the pierced opening. The resilient tine is also capable of returning to its factory preset state of orientation when no longer constrained within the pierced substrate opening so as to grip and clamp the substrate layers being fastened between itself and the crown of the fastener.
Patent JP-2004507861-A (JP)
Title: イオン注入イオン源、システム、および方法
IPC: H01J37/317
Filed: 2000-12-13
Abstract: イオン注入システム用のイオン源（１）は、プロセスガスを生成する蒸発器（２）と、電子ビーム（３２）を指向してイオン化封入物（１６）内のプロセスガスをイオン化する電子源（１２）と、ビームダンプ（１１）と、イオン化チャンバ（５）と、イオンビームを取り出す抽出アパーチャ（３７）とを含み、本発明の制御システムは、個々の蒸気またはガス分子が、主に該電子銃からの一次電子との衝突によってイオン化され得るように、該一次電子のエネルギーの制御を可能にする制御システムとを含む。
Patent JP-2003517531-A (JP)
Title: エンジン
IPC: F01B5/00
Filed: 2000-12-07
Abstract: (57)【要約】
エンジンは、その円周に沿って接線方向に配置された１つまたは複数のシリンダを有する回転可能部材を含む。それぞれがこれらの回転可能部材に対して偏心に枢動されるピストンレバーと関連づけられた、１つまたは複数の対応するピストンがある。シリンダがピストンから遠ざかる方に動いて、燃焼エネルギーを、その回転可能部材に伝達するように、各ピストンの移動が制御される。シリンダとピストンは両方とも、このエンジンの固定部分に対して、連続的に回転する。
Patent JP-2004511260-A (JP)
Title: 患者支持装置の付属装置
IPC: A61G13/12
Filed: 2000-12-13
Abstract: 付属具保持器（７０）が患者支持装置（１０）と共に用いるよう設けられ付属具（１３）を患者支持装置に対し位置決めする。付属具保持器が第１の本体（７６）と第２の本体（１２０）と連結装置（８８，１１６）とを含んでいる。第１の本体は患者支持装置に連結されるようになっており空洞（１１９）を含んでいる。第２の本体は第１の本体の空洞の中に位置する。第１及び第２の本体の少なくとも一方が付属具を受け入れるように構成されている。連結装置は第１及び第２の本体の少なくとも一方に連結され第２の本体を第１の本体に対し回動させるよう構成されている。
Patent JP-2003520501-A (JP)
IPC: H04W80/04
Filed: 2001-01-12
Abstract: Methods and apparatus are presented for extending the protocol synchronization period between a PPP client and a PPP server, wherein the PPP server is located on a wireless communication device. In one aspect, the PPP server generates and sends an IPCP Configure-Nak message to the PPP client whenever the PPP client sends an IPCP Configure-Request message, wherein an arbitrary non-zero value is deliberately sent as the primary DNS address, the secondary DNS address, the primary WINS address, or the secondary WINS address is sent in the IPCP Configure-Nak message. The IP address is deliberately omitted from the IPCP Configure-Nak message.
Patent JP-2003527232-A (JP)
Title: フィルタ装置
IPC: B01D29/92
Filed: 2001-01-03
Abstract: (57)【要約】
本発明は、フィルタハウジング（１０）と、フィルタ入口（１２）と、フィルタ出口（１４）と、濾過領域（１８）を２つの部分領域（２０、２２）に分割するフィルタ要素（１６）とを備えたフィルタ装置に関する。部分濾過領域の少なくとも一方は錘状形態であり、この錘状形態は、一方の部分領域（２０）の断面をフィルタ入口（１２）からフィルタ出口（１４）へ先細りにすることによって得られる。部分領域は、フィルタ要素によって互いから分離されている。この結果、均一な流量でフィルタ装置内部に最適な滞留時間分布が得られ、このことはポリマ融解物又は類似物のような高粘性流体に特に有益である。
Patent JP-2003522654-A (JP)
Title: 動的給送制御システム
IPC: B29C45/28
Filed: 2001-02-13
Abstract: (57)【要約】
【課題】  動的給送制御システムを提供する。
【解決手段】  射出サイクル中材料流量が制御される射出成形装置およびシステムが提供される。１つの好ましい実施形態によれば、流圧源を含む射出成形機と、前記射出成形機から射出された材料を１つあるいはそれ以上のモールドキャビティに導く複数のゲートに分配するマニホールドと、材料が射出サイクル中前記ゲートを通って射出されるそれぞれの流量を個別に制御するコントローラとを含む射出成形システムが提供される。このコントローラは、流圧源に結合され、この流圧源は、流圧を射出成形機におよび前記それぞれの流量を制御するための両方に供給する。
Patent JP-2003525906-A (JP)
IPC: A61K38/55
Filed: 2000-03-06
Abstract: The invention described herein relates to the use of human interleukin-6 antagonists, totally incapable of binding to gp 130, as specific inhibitors of the enzyme aromatase, useful for the treatment of hormone-dependent tumours, and particularly tumours of the breast.
Patent JP-2003525706-A (JP)
Title: 非吸収性生理活性物質の本体を有する移植組織
IPC: A61L27/58
Filed: 2001-03-07
Abstract: (57)【要約】
移植組織は、非吸収性生理活性物質の本体を有し、その非吸収性物質の本体中に位置する吸収性生理活性物質の領域を有する。合理的な物質のそれら領域の大部分の大きさは、１０〜５００μｍである。
Patent JP-2003526108-A (JP)
IPC: G01N27/06
Filed: 2001-03-05
Abstract: A system for conducting a plurality of different medical diagnostic tests comprises a hand-held portable self contained instrument for engaging a disposable test cell containing a fluid to be tested. The instrument performs a diagnostic test selected from the plurality of tests upon the fluid within the test cell, the test being selected by the instrument based upon identification information obtained from the test cell. A disposable, single use test cell is provided for receiving fluid to be diagnostically tested. The test cell includes identification information indicative of a particular test to be performed upon the fluid, the test cell being sized and shaped for engagement by the instrument.
Patent JP-2003531330-A (JP)
IPC: B01D45/08
Filed: 2000-04-12
Abstract: There is described an improved method for treating crankcase emissions from an internal combustion engine, comprising the steps of directing the emissions from the crankcase to an emissions separator, subjecting the emissions in the separator to a series of cleansing operations for removal of contaminants, directing the flow of cleansed emissions through a one way check valve back to the engine for combustion and collecting the separated contaminants for disposal.
Patent JP-2003531946-A (JP)
IPC: G01N33/542
Filed: 2001-05-01
Abstract: Fluorescent, sulfonated 3,7-diamino-[8,9]benzophenoxazine dyes are provided that are especially useful for labelling biopolymers and other substrates. The dye-labelled conjugates can be used in a variety of contexts, including cell surface assays employing intact, live cells and in nucleic acid detection methods. The new dyes are water soluble and can be conjugated to a variety of substrates, such as polynucleotides, nucleosides, nucleotides, peptides, proteins, antibodies, carbohydrates, ligands, particles and surfaces.
Patent JP-2003533412-A (JP)
IPC: B65D51/18
Filed: 2000-05-23
Abstract: Improved pressure-applied lid (140) on cans (130) for containing drinks, with three internal annular sealing rings, two matching respectively with the beginning and end of the lid's truncated-cone shaped mouth, and a third intermediate rib, surrounded at the point where its truncated-cone shaped body passes onto the cylindrical top, by a plastic or metal ring (155) that exerts pressure in the intermediate area between the two upper annular ribs and passes inside a hook (150) made in one piece with the lid, it being thus possible, when the drinks is to be consumed, to use the fingers (160) to pull the ring (155) at a point diametrically opposite that of the hook (150) to facilitate detachment of the lid (140) from the can (130).
Patent JP-2003204278-A (JP)
Title: Converter for satellite broadcasting reception
Inventor: KATO MASAHIRO
IPC: H04N5/44
Filed: 2002-01-07
Abstract: <P>PROBLEM TO BE SOLVED: To provide a low noise down-converter (LNB) coping with multiple satellites whose power consumption is reduced.  <P>SOLUTION: A control part 38 detects presence/absence of pulse signals supplied from a satellite broadcasting receiver through a port PO and outputs control signals PDOUT. Corresponding to the control signals PDOUT, a power supply circuit 40 stops the supply of one of a power supply potential BIAS1 supplied to an LNA 22A and the power supply potential BIAS2 supplied to the LNA 22B. Thus, the power consumption of the LNB coping with the multiple satellites is reduced and even the satellite broadcasting receiver of a low current supply capacity can be connected.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003202882-A (JP)
Title: Method and device for sound synthesis
Inventor: HASEGAWA HIROSHI
IPC: G10L21/013
Filed: 2002-01-07
Abstract: <P>PROBLEM TO BE SOLVED: To generate sound data with a necessary pitch not through pitch conversion using a digital filter having a large arithmetic load.  <P>SOLUTION: A device for sound synthesis has a short-cycle sampling sound element storage part 1 which performs sampling for each of sound elements in sampling cycles shorter than reference sampling cycles and holds amplitude values corresponding to short-cycle sampling points obtained by the sampling as short-cycle sampling sound elements, an output sound element generation part 2 which obtain short-cycle sampling sound elements to be processed from the held short-cycle sampling sound elements, obtains waveform data for each of short-cycle sampling points corresponding to waveform data acquisition cycles specified with input pitch information for the sound elements, and reproduces the waveform data as waveform data for each of the reference sampling cycles, and a phase control processing part 3 which determines from which short-cycle sampling point a start is made by taking the consistency to waveform data at the end of the last sound element into consideration.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003205382-A (JP)
Title: Method and device of laser brazing
Inventor: TARUI HIROSHI
IPC: B23K1/005
Filed: 2002-01-08
Abstract: <P>PROBLEM TO BE SOLVED: To prevent the deterioration of a brazing quality by preventing the variation in a laser power density at a brazing point even when the relative attitude of a brazing head and a work varies, and by keeping the relation between the irradiated position with the laser and the wire feeding position constant.  <P>SOLUTION: When the laser brazing is performed by moving the brazing head 15 with respect to the work 29, the distance between a condenser lens 27 and the brazing point P of the work 29 is always kept constant by moving the condenser lens 27 in the brazing head with respect to the brazing head 15 even when the relative attitude (angle) of the brazing head 15 and the work 29 varies according to the three dimensional form of the work 29.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003207726-A (JP)
Title: Control method for rotating actuator, control direction judging means using the same, and electronic equipment
Inventor: IINO AKIHIRO
IPC: G02B6/00
Filed: 2002-01-11
Abstract: <P>PROBLEM TO BE SOLVED: To realize such a position control that uses neither an area exceeding sensor sensitivity of a device connected to an output-side collimator nor a section where the variation rate of a shading quantity unsuitable for adjustment is high, from the relation characteristic between the rotational position of an eccentric body constituting a variable light attenuator and the shading quantity.  <P>SOLUTION: The control over the rotating actuator is provided with a means which regards as inhibition areas a section of an undesirable shading quantity and the section where the variation rate of the shading quantity is high as to the relation characteristic between the rotational position of the eccentric body and the shading quantity and judges a direction not passing the inhibition areas during driving from a current position to a target position on the basis of current position information, target position information, and inhibition section information, thereby performing driving control in an operation section from the current position to the target position according to the judgment.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003206188-A (JP)
Title: Ceramic composite and method for producing the same
Inventor: OKADA TAKAHIKO
IPC: C04B41/85
Filed: 2002-01-15
Abstract: <P>PROBLEM TO BE SOLVED: To obtain a ceramic composite capable of imparting various functions to a ceramic by a simple treatment comprising control of the firing temperature of the ceramic, and to provide a method for producing the same.  <P>SOLUTION: A ceramic preform not sufficiently sintered and having a strength of 70 to 80% of the maximum strength and many pores is first obtained by firing a ceramic base material at 1,450°C. Then the obtained ceramic preform is dipped into an alcohol solution including a dye and a fixing agent which is a mixed solution of the dye, methyl silicate and silanol, and the air in the pores of the ceramic preform is replaced with a coloring agent in a vacuum chamber. Thereafter, the ceramic impregnated with the coloring agent is cleaned using an alcohol, naturally dried, and further dried at 80°C.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003217615-A (JP)
Title: Separator for fuel cell
Inventor: SANO SEIJI
IPC: H01M8/10
Filed: 2002-01-17
Abstract: <P>PROBLEM TO BE SOLVED: To provide a separator for a fuel cell usable for a solid high polymer electrolyte fuel cell capable of restricting deterioration of power generation efficiency on the downstream side of gas.  <P>SOLUTION: The width of a ridge 28 parting a gas passage 27 to feed gas to a power generating surface of the fuel cell is varied in a gas flow direction. (2) In constitution (1), the width of the upstream ridge 28 is wider, and downstream narrower. (3) A ratio A/B between the width A of the ridge and width B of the gas passage 27 is varied in the gas flow direction. (4) In constitution (3), the ratio A/B is larger at the upstream position and smaller at downstream.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003218100-A (JP)
Title: Mixture cleaning gas composition
Inventor: MORI ISAMU
IPC: H01L21/31
Filed: 2002-01-21
Abstract: <P>PROBLEM TO BE SOLVED: To provide cleaning gas for removing unnecessary matters deposited on the inner wall, and the like, of a thin film forming system, and the jigs, components, piping, and the like, of the system.  <P>SOLUTION: The mixture cleaning gas composition contains at least one kind of gas selected from COF<SB>2</SB>, CO<SB>2</SB>, halogen gas, halogenated hydrogen, and carbonyl halide.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003214771-A (JP)
Title: Heating furnace device
Inventor: CHIZAKI TATSU
IPC: F16J15/16
Filed: 2002-01-22
Abstract: <P>PROBLEM TO BE SOLVED: To provide a heating furnace device having a seal capable of maintaining the seal performance for a long time use.  <P>SOLUTION: Seal devices 21 and 45 have metal annular bodies 23 and 50 fitted to the peripheral parts of a rotary furnace body 10 and a fixed furnace body 30 to surround the periphery thereof and adjusting devices 26, 27, 29, 40 and 55 for adjusting position and attitude of at least one of both the annular bodies. These adjusting devices adjust the opposite surfaces of both the annular bodies to be nearly evenly brought in contact with each other or coming close to each other over the nearly whole circumference, while allowing the relative rotation.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003215701-A (JP)
Title: Optical device and projector equipped with the same
Inventor: KATO HISAMARO
IPC: G02F1/13
Filed: 2002-01-23
Abstract: <P>PROBLEM TO BE SOLVED: To provide an optical device in which an optical converting element can easily be replaced and reworkability can be improved, and a projector equipped with the same.  <P>SOLUTION: A polarizing plate holder 452 is composed of a nearly rectangular frame plate body having an opening part 452A and a holding surface 452B is formed at the circumferential edge of the opening part 452A. Further, fixation parts 452C which are projected from the plate body and fix the holding frame 453 are formed at four corner parts of the polarizing plate holder 452 and on the reverse surfaces of the fixation parts 452C, holes 452E are formed which extend from the top end part to the holding surfaces 452B. A support part 452D which supports the lower end part of a projection-side polarizing plate 443 is formed at the fixation part 452C positioned at the lower end part among the fixation parts 452C. An energizing member 454 is installed from above the polarizing plate holder 452 and the projection-side polarizing plate 443 is energized toward the holding surface 452B along the thickness of the projection- side polarizing plate 443.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003213602-A (JP)
Title: Rail joining structure for single rail carrier
Inventor: KURITA EIJI
IPC: E01B25/04
Filed: 2002-01-24
Abstract: <P>PROBLEM TO BE SOLVED: To prevent abnormal deformation of a hole or rack provided on a rail engaged with a driving wheel of a single rail carrier, maintain a constant pitch of the hole or rack, eliminate ununiformity in engagement with the driving wheel due to broadening of the hole or rack, and improve durability of the rail.  <P>SOLUTION: The rail joining structure for the single rail carrier is characterized by that a joining member 5 is provided for pulling and fastening a supporting member 4 of the rail to an adjacent rail supporting member (a strut) 4, or a support fitting 3 for the rail to an adjacent rail support fitting 3, provided at a rail joint part of the single rail carrier traveling by acquiring thrust by the driving wheel engaged with the hole or rack provided on the rail 1.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003212496-A (JP)
Title: Battery type forklift
Inventor: KAWASHIMA KAZUFUMI
IPC: B66F9/24
Filed: 2002-01-28
Abstract: <P>PROBLEM TO BE SOLVED: To provide a battery type forklift restricting generation of noises originating from operation of a cooling fan for cooling a controller for driving and controlling motors while appropriately cooling the controller so as not to be overheated.  <P>SOLUTION: This forklift comprises the controller 18 for driving and controlling motors such as a cargo handling motor 25 and a running motor 26, and the cooling fan 22 for cooling the controller 18. Rotation speed detection means 28, 29 for detecting rotation speeds of the motors 25, 26 are installed on the respective motors 25, 26. The controller 18 stops operation of the cooling fan 22 when rotation speeds of the respective motors 25, 26 detected by the rotation speed detection means 28, 29 are at or below previously set reference values Ra, Rb.  <P>COPYRIGHT: (C)2003,JPO