baber/WOPTO huggingface dataset:
Patent JP-2003239904-A (JP)
Title: Hydraulic pressure control system for reducing motor cavitation
Inventor: YOSHINO KAZUNORI
IPC: F16D31/02
Filed: 2002-12-26
Abstract: <P>PROBLEM TO BE SOLVED: To provide a hydraulic pressure control system for reducing motor cavitation.  <P>SOLUTION: The fluid control system comprises at least one double-acting cylinder and at least one fluid-driven motor. A pressure fluid source feeds the pressure fluid flow to the at least one double-acting cylinder and at least one fluid-driven motor, and a tank receives the return fluid flow from the at least one double-acting cylinder and at least one fluid-driven motor. A back pressure element is disposed between the tank and the motor, and may affect the back pressure condition of the fluid emitted from the motor. An exclusive channel may feed the supply fluid to the motor at a location between the motor and the back pressure element.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2004214815-A (JP)
Title: Electronic apparatus with sound output apparatus
Inventor: KOMIYA KUNIHIRO
IPC: H03F1/30
Filed: 2002-12-27
Abstract: <P>PROBLEM TO BE SOLVED: To provide an electronic apparatus provided with a sound output apparatus including a preamplifier and an output amplifier requiring a bias voltage wherein the output amplifier can individually be turned ON / OFF and pop noise caused in the ON state is reduced.  <P>SOLUTION: The sound output apparatus is provided with: a preamplifier; at least the output amplifier receiving an output of the preamplifier and capable of being individually turned ON / OFF; a first bias circuit for generating a first bias voltage to the preamplifier; and a second bias circuit including resistors and a capacitor and operated to generate a second bias voltage slowly increasing in response to an on signal to the output amplifier. Further, the second bias circuit is provided with an acceleration circuit for accelerating rising of the bias voltage.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004212503-A (JP)
Title: Lighting device and its light emitting driving method, and display device
Inventor: IGAWA MASASHI
IPC: G09G3/36
Filed: 2002-12-27
Abstract: <P>PROBLEM TO BE SOLVED: To provide a lighting device and its light emitting driving method which can improve display diversity of a display panel and reduce the power consumption of a back light by varying the illuminance of irradiation light emitted by the back light in response to operation for displaying image information in a special display state of black belt display etc., on the display panel, and a display device which is equipped with the lighting device as a back light.  <P>SOLUTION: The liquid crystal display device has a plurality of light emitting diodes in addition to the liquid crystal panel 10, a gate driver 20, a source driver 30, and an LCD controller 40 and is equipped with a back light part 50 which performs operation for irradiating the whole liquid crystal display panel 10 with the irradiation light with constant luminosity and operation for irradiating a specified display area of the liquid crystal display panel 10 with the irradiation light with arbitrary luminosity while making the light emission luminance of a light emitting diode at a specified position different from that of a light emitting diode at another position.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004213200-A (JP)
Title: Data setting device
Inventor: MAITA MASATOMO
IPC: G01N21/956
Filed: 2002-12-27
Abstract: <P>PROBLEM TO BE SOLVED: To provide the data setting device for an image recognizing device capable of dividing the surface color of a part to be inspected into several constituting colors, and calculating the statistic of each constituting color and the similarity of the constituting colors for setting optimal inspection data.  <P>SOLUTION: This data setting device for setting the setting data of an image recognizing device for image-recognizing the image for recognition of an object to be recognized based on setting data is provided with a recognition image inputting part for designating a recognition area in the image for recognition where the object to be recognized is imaged, a constituting color processing part for extracting the constituting colors of the object to be recognized based on the image in the recognition area, and for calculating statistic indicating the fluctuation of the colors concerning the constituting colors and an inspection data determining part for determining the extraction color range of the object to be recognized based on the statistic.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004210693-A (JP)
Title: Organic photoelectroconductive compound and photorefractive material using the same
Inventor: NISHIO AKINORI
IPC: C07C217/92
Filed: 2002-12-27
Abstract: <P>PROBLEM TO BE SOLVED: To obtain an organic photoelectroconductive compound which gives a material having a fast response speed and exhibiting excellent photorefractive effects.  <P>SOLUTION: The organic photoelectroconductive compound is represented by formula (P) [wherein A<SB>1</SB>and A<SB>2</SB>are each independently hydrogen or a group represented by formula (8) (wherein R is a 1-18C alkyl group) provided A<SB>1</SB>and A<SB>2</SB>are not simultaneously hydrogen].  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004501987-A (JP)
IPC: C08F4/10
Filed: 2001-06-19
Abstract: The present invention is directed to energy-efficient, photoinitiators having the general formula:wherein Z each independently representwherein R1, R2, R3, R4, R5, R6, R7, R8 are as defined in claim 1, and wherein R9 represents (R10)2O or (R10)3N; wherein R10 represents H or an alkyl group having from one to eight carbon atoms; and wherein R11 represents H, an alkyl group having from one to eight carbon atoms, a benzyl group or an aralkyl group. The present invention is also directed to a method of generating a reactive species, methods of polymerizing polymerizable materials, methods of curing an unsaturated oligomer/monomer mixture, and methods of laminating using the photoinitiators of the present invention. In addition, the present invention is directed to ink compositions, adhesive compositions and resins, and methods of printing using the above-described photoinitiators.
Patent JP-2004505061-A (JP)
IPC: A61P9/00
Filed: 2001-07-27
Abstract: A combination therapy comprising a therapeutically-effective amount of an epoxy-steroidal aldosterone receptor antagonist and a therapeutically-effective amount of a calcium channel blocker is described for treatment of circulatory disorders, including cardiovascular disorders such as hypertension, congestive heart failure, cirrhosis and ascites. Preferred calcium channel blockers are those compounds having high potency and bioavailability. Preferred epoxy-steroidal aldosterone receptor antagonists are 2O-spiroxane steroidal compounds characterized by the presence of a 9alpha,11alpha-substituted epoxy moiety. A preferred combination therapy includes the calcium channel blocker verapamil HC1 (Benzenacetonitrile, (±) -alpha[3[[2-(3,4-dimethoxyphenyl)ethyl]methylamino]propyl]-3,4-dimethoxy-alpha-(1-methylethyl)hydrochloride) and the aldosterone receptor antagonist epoxymexrenone.
Patent JP-2004504946-A (JP)
IPC: B30B15/00
Filed: 2001-07-17
Abstract: A forming machine according to the invention comprises at least one forming station having a punch and a die as tools and a device for setting the axial position of one of the two tools. The setting device has, as adjusting wedge, a rotary wedge disk which is rotatable about a rotation axis and bears with a bearing surface against a parent body. The rotary wedge disk is provided with an inclined plane on the other disk side. The setting device also comprises a pressure piece which is composed of a pressure part and a rotary part having an end face. The end face bears against the inclined plane in such a way that it is displaced relative to the rotary wedge disk eccentrically to the rotation axis when the rotary wedge disk is rotated, the axial distance between pressure piece and parent body changing in the process. Since the adjusting wedge is a rotary wedge disk, the bearing surface rotates on the parent body and is not displaced longitudinally during an adjustment.
Patent JP-2004506060-A (JP)
Title: 有機化合物
IPC: C09B62/44
Filed: 2001-08-08
Abstract: 本発明により、下式（Ｉ）の化合物である繊維反応性染料、その製造方法、及び水酸基含有有機基材の染色又は印刷におけるその染料の使用が提供される。 【化１】     ［式中、置換基は、請求項１で定義されたとおりである。］
Patent JP-2004509686-A (JP)
IPC: G06T7/20
Filed: 2001-09-26
Abstract: Systems and methods for deriving a cardiac cycle signal by selecting images of a portion of a cardiovascular system include receiving a plurality of images from a scanner that have been recorded over a period of time. The images represent one or more locations along the extent of the cardiovascular system. The images are then selected based on common criteria determined from the plurality of images and without reference to an external signal. The common criteria comprises changes in the size of a cross section of the aorta, changes in the volume of the heart, changes in the area of a cross section of the heart. In addition, the criteria can include the mean pixel difference between adjacent images.
Patent JP-2004534168-A (JP)
Title: 燃料噴射器を燃料レールに直接固着した燃料システム
IPC: F02M55/00
Filed: 2001-10-04
Abstract: 燃料噴射器（２００）が燃料レール（３００）に直接固着された燃料システム。燃料レール（３００）は、内側表面（３１１）と、外側表面（３１２）とを有する本体を備えている。内側表面（３１１）は内部空間を画定する。外側表面（３１２）は内側表面（３１１）を取囲む。内側表面（３１１）と外側表面（３１２）の間には内部空間と流体連通関係に少なくとも１つの開口（３１４）が延びている。燃料噴射器（２００）は、一部を介する流路を画定する内側表面（２１１）と、内側表面（２１１）を取囲む外側表面（２１２）とを有する入口管（２１０）を備えている。燃料噴射器（２００）は、流路が内部空間と流体連通関係になるように配設されている。剛性接続部は、燃料レール（３００）の内側表面（３１１）及び外側表面（３１２）のうち少なくとも一方と入口管の外側表面（２１２）との間にあって燃料レール（３００）を燃料噴射器（２００）に固定し密封する。
Patent JP-2004511803-A (JP)
Title: バニロイド受容体についての改良リガンド結合アッセイ
IPC: G01N33/53
Filed: 2001-10-11
Abstract: 本発明は、ｐＨがＶＲ１受容体に対するＲＴＸの親和性を変えるアッセイを記述する。ＲＴＸの親和性は、ｐＨを４．１から８．６まで増大させることに伴い増大された。ＲＴＸの親和性およびＲＴＸ結合部位の見かけの数の双方が、ｐＨを８．６から１０．６まで増大させることに伴い減少された。高いｐＨは細胞膜を変性させるかもしれない。これらのｐＨ条件（ｐＨ８．０ないしｐＨ９．０）は、高いＳ／Ｎ比を提供し、より確固たるアッセイを与え、そしてより少ない実験材料の使用を必要とする。
Patent JP-2004514801-A (JP)
Title: 不織材料およびその製造方法
IPC: D04H11/00
Filed: 2001-10-25
Abstract: 第一繊維および第二繊維から形成される不織布。第一繊維は標準的なポリエステルステープル繊維であり、第二繊維は第一繊維材料より低い融解温度を有するポリエステル材料と、その後の成形工程での成形温度を超える融解温度を有するポリエステル材料のブレンドである。不織布は、ベース領域およびベース領域から伸張するパイル領域を備える。パイル領域は、第一繊維および第二繊維の結合であって、布の平面方向に対しおよそ垂直に配向している。ベース領域は、第一繊維および第二繊維の編物部分である。不織布は、第一繊維と第二繊維の編物部分であってベース領域と反対側でパイル領域上に配置されるカバー領域も含んでよい。
Patent JP-2004515954-A (JP)
Title: 外乱のある可能性があるチャネルを介して伝送されたオーディオ信号の再生装置
IPC: H03G5/22
Filed: 2001-11-27
Abstract: オーディオ信号の外乱ノイズの程度を検出するための装置４３と、外乱ノイズの程度に依存してオーディオ信号の高周波成分を低減するための装置４５と、オーディオ信号の周波数選択増幅用の音質制御装置４６とを有する、外乱ノイズのある可能性があるチャネルを介して伝送されたオーディオ信号の再生装置で、高周波オーディオ信号成分の低減用の低減装置４５が、付加的に、音質制御装置４６を用いて調整された周波数選択オーディオ信号増幅度に依存するように構成されている。 既述の再生装置を用いると、音質調整とは無関係に外乱ノイズに依存して高さを低減することができるようになる。
Patent JP-2004517225-A (JP)
Title: プレスフェルト並びにプレスフェルトを製造する方法
IPC: D21F7/08
Filed: 2001-12-18
Abstract: 【課題】 【解決手段】本発明のプレスフェルトは、芯繊維層（１）が少なくともペーパーウェブに面する表面に取着された基礎繊維（２）を有する。この基礎繊維は、少なくとも２つの独立した層（４乃至６；１１、１２）を有するラミネート構造である。基礎繊維の場合、１つ以上の基礎繊維モジュール（１４乃至１６）が設けられ、閉じたループを形成するように芯シームによって組立てられる。好ましい実施形態に係れば、夫々異なる長さを有する少なくとも２つの異なる接続部（２２乃至２４）が、基礎繊維の異なる層からモジュールの接合端部に形成される。接続部は、相互に連結される接合端部で互いに対して逆にされる。
Patent JP-2004519562-A (JP)
Title: 湿潤フェルト化及び熱結合した多孔構造体
IPC: B01D39/00
Filed: 2002-02-26
Abstract: ろ過性能が向上したフィルター用の成形多孔基材を生産するための、湿潤フェルト化及び熱結合した多孔構造体の製造方法を提供する。この方法は、天然もしくは合成の繊維で構成する主基材と、フィブリル化した繊維で構成する湿潤強度増強剤と、結合剤とを用いてスラリーを形成する工程と、スラリーを真空成形して成形基材を生産する工程と、気体を用いて結合剤の融解温度より低い温度で成形基材を乾燥する工程と、気体を用いて結合剤の融解温度より高い温度で成形基材を結合する工程と、ろ過性能の向上が得られる改良結合を有する成形多孔基材を冷却する工程と、を含む。
Patent JP-2005500996-A (JP)
Title: アリールスルホンアミドエーテルおよびそれの使用方法
IPC: C07C311/46
Filed: 2002-05-10
Abstract: 新規なアリールスルホンアミドエーテル化合物およびその化合物の医薬組成物が記載されている。その新規なアリールスルホンアミドエーテル化合物およびその化合物の医薬組成物のインターロイキン−１β変換酵素およびＩＣＥファミリーにおける他のシステインプロテアーゼ類の阻害薬としての使用も記載されている。さらに、本発明の化合物またはその化合物の医薬組成物を用いる卒中、炎症性疾患、敗血症ショック、再潅流損傷、アルツハイマー病およびシゲラ症の治療方法も記載されている。
Patent JP-2004521761-A (JP)
Title: 両極性パルスを用い陰極析出物を除去する方法
IPC: B23H7/20
Filed: 2002-04-19
Abstract: 電解加工処理の間に陰極析出物をオンラインで除去する方法を提供する。プロセス制御手段は、被加工物及び陰極に対して、単極性加工用電圧パルスＵ１と逆極性Ｕ２の電圧パルスを交互にするよう配置される。プロセス制御手段は、動作パラメータに基づきオンラインで陰極析出物の量を決定する構成を有する。動作パラメータが許容レベルを超える場合のみ、プロセス制御手段は単極性加工用電圧パルスＵ１と逆極性Ｕ２の電圧パルスを交互にする。この場合、陰極の磨耗は最小化される。
Patent JP-2004533686-A (JP)
Title: 安全上重要な制御のための方法、マイクロプロセッサシステムおよびその使用
IPC: G06F12/14
Filed: 2002-05-06
Abstract: 本発明は、安全機能を有するマイクロプロセッサシステムを運転するための方法に関する。マイクロプロセッサシステムは共通のチップ支持体上に２個以上のプロセッサコア（１，２）と周辺要素（５，７）を備え、書き込みまたは読み出しのためにプロセッサコアが周辺要素にアクセス可能である。安全上重要な機能のためのアルゴリズムと、快適機能のためのアルゴリズムとが区別される。本発明は更に、方法を実施するために適したマイクロプロセッサシステムとその使用に関する。プロセッサコアはバスシステム（３，４）を介して周辺要素（５，６，７，８，９，１０）に接続され、更にバスドライバ（１９）が設けられ、このバスドライバが一方のバスから他方のバスにバス情報を伝送可能であり、少なくとも１個のアドレス比較回路（１８）が設けられている。
Patent JP-2004212852-A (JP)
Title: Image recording material and method of manufacturing image recording material
Inventor: TSUCHIMURA TOMOTAKA
IPC: G03F7/00
Filed: 2003-01-08
Abstract: <P>PROBLEM TO BE SOLVED: To provide an image recording material having excellent development latitude and suitable as a recording material of a planographic printing original plate for direct plate making having high sensitivity and excellent scuffing resistance and to provide a method of manufacturing the image recording material.  <P>SOLUTION: The image recording material has, on a substrate, a recording layer which contains a polymer containing long chain alkyl groups and an IR absorbing agent and is capable of forming an image by IR irradiation. Fine protrusions consisting of the polymer containing long chain alkyl groups exist on the surface of the recording layer.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004209139-A (JP)
Title: Anti-contamination curtain for western style toilet, and method for preventing contamination
Inventor: FUJIMOTO MASAO
IPC: A47K13/24
Filed: 2003-01-08
Abstract: <P>PROBLEM TO BE SOLVED: To totally protect both the floor and the walls of a toilet from contamination to reduce burden of cleaning.  <P>SOLUTION: A folding type anti-contamination curtain of substantially sector shape is employed. Both wing parts of the anti-contamination curtain are attached to an upper end inner side surface of a toilet bowl, and to a lower inner side surface of a circular or U-shaped toilet seat disposed on the toilet bowl.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004219451-A (JP)
Title: Polarization varying plate
Inventor: YOSHIMOTO ATSUSHI
IPC: G02B26/00
Filed: 2003-01-09
Abstract: <P>PROBLEM TO BE SOLVED: To provide a polarization varying plate in which leakage is prevented for the information displayed based on light emission.  <P>SOLUTION: The polarization varying plate, in which polarization direction is selectively adjusted, is provided with a soft focus filter member which has an approximately plate shape, and makes the received light beam soft-focused and outputs the beam, a polarization filter member which is arranged nearly in parallel with the soft focus filter member, polarizes the received light beam and outputs the beam, and a polarization direction adjusting means which adjusts the polarization direction by rotating the polarization filter member. The member is formed by spreading polarization filter small pieces having polarization characteristics. Each polarization filter small piece is made into unit constitution by the combination of a rotating shaft and a unit gear and rotatively driven by a transmission gear arranged between the respective unit gears. It is possible to arrange a plurality of layers of the filter members.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004218855-A (JP)
Title: Vapor compression type refrigerating machine
Inventor: TAIRA TERUHIKO
IPC: F24F11/02
Filed: 2003-01-09
Abstract: <P>PROBLEM TO BE SOLVED: To shorten a defrosting operation time by efficiently operating a vapor compression type refrigerating machine.  <P>SOLUTION: This vapor compression type refrigerating machine comprises a bypass passage 6 for guiding a high-pressure refrigerant discharged from a compressor 1 to an evaporator 4, and a second expansion valve 5 for decompressing the high-pressure refrigerant flowing out from the evaporator 4, and supplying the same to a suction side of the compressor 1 in a defrosting operation for guiding the high-pressure refrigerant discharged from the compressor 1 to the evaporator 4 through the bypass passage 6. As a hot gas discharged from the compressor 1 is introduced to the evaporator 4 without being decompressed while keeping a high temperature, and the defrosting operation can be completed in a short time, the original operation of the vapor compression type refrigerating machine such as evaporating the refrigerant in the evaporator 4 can be performed for a long time.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004221833-A (JP)
Title: Fax system
Inventor: YAMAMOTO TETSUYA
IPC: H04N1/00
Filed: 2003-01-14
Abstract: <P>PROBLEM TO BE SOLVED: To provide a FAX system which transmits a FAX original formed by an arbitrary computer for constituting a LAN by utilizing a LAN environment already existing irrespective of wired/radio as it is.  <P>SOLUTION: The FAX system includes a FAX apparatus having one or more computers each having a LAN interface, a terminal unit having the LAN interface and a first radio communication means, and a second radio communication means. In this FAX system, FAX original data sent from the arbitrary computer for constituting the LAN to the terminal unit via the LAN is transmitted from the terminal unit via the first radio communication means. The FAX apparatus transmits the FAX original data received via the second radio communication means to a predetermined transmission destination via a telephone channel.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004219766-A (JP)
Title: Optical communication module, optical communication component and its manufacture method
Inventor: INOUE KAZUKO
IPC: G02B6/293
Filed: 2003-01-15
Abstract: <P>PROBLEM TO BE SOLVED: To provide an optical communication module which can be simply assembled by solving such a problem in the conventional optical communication module that the adjustment of optical axis is difficult and the assembly accuracy can not be enhanced.  <P>SOLUTION: In the optical communication module, at least a first optical member, a second optical member and a third optical member are arranged in this order on an optical path of optical communication and, therein, the positional alignment is performed on the basis of the first optical member. The third optical member is not coupled to the second optical member but is positioned by directly being coupled to the first optical member as reference. The positioning and optical axis alignment can be simply performed, the positional deviation is not integrated and the deviation of optical axis as the total module can be reduced.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004219826-A (JP)
Title: Method, device, and program for evaluating objective quality, and recording medium recorded with objective quality evaluating program
Inventor: MASUDA YUKITAKA
IPC: G10L25/21
Filed: 2003-01-16
Abstract: <P>PROBLEM TO BE SOLVED: To solve trouble such that noise is superposed on a signal to be evaluated since a system to be evaluated is hardware and an interface for an objective evaluation measuring instrument is an analog interface and then universality of evaluation can not be secured, i.e. influence of the noise is exerted.  <P>SOLUTION: A sample signal outputting an evaluation result in every fixed section within the evaluation range of an objective evaluating method is generated and an element signal to which noise is added by an object of evaluation is recorded. The recorded element signal is added to all sample signals to generate a noise-added signal. All noise-added signals are objectively evaluated to obtain objective evaluation values. Objective evaluation results of the sample signal and noise-added signals and differences the two evaluation results are put together in a correspondence table and used as recording conditions of the system to be evaluated. Then an objective evaluation of the system to be evaluated is measured. The recording conditions of the system to be evaluated obtained by the measurement procedure 4 are corrected according to the correspondence table to normalize the objective evaluation results.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004220473-A (JP)
Title: Radio mobile terminal
Inventor: NISHI DAISUKE
IPC: G06F3/00
Filed: 2003-01-17
Abstract: <P>PROBLEM TO BE SOLVED: To contrive efficient input of a character string and to automatically generate a sentence with higher expressiveness.  <P>SOLUTION: This radio mobile terminal is provided with: an imaging part 101 which outputs image data; a memory 103 which stores image data for reference; a character conversion part 102 which generates, on the basis of the image data for reference, character data associated with the image data inputted from the imaging part 101; and a control part 108 which displays the character string on a character display part 104 by adding characters generated by using the character conversion part 102 to the characters edited by using a character input part 105.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004226479-A (JP)
Title: Variable shape mirror and method of manufacturing optical modulator element included in mirror
Inventor: ARIMA MICHITSUGU
IPC: G02B26/08
Filed: 2003-01-20
Abstract: <P>PROBLEM TO BE SOLVED: To provide a variable shape mirror of an electromagnetic driving type in which a deterioration in quality of reflection face due to the residual stress between a wiring for driving and an elastic film is improved.  <P>SOLUTION: The variable shape mirror is provided with a magnetic field generation means and an optical modulator element 120 arranged in the magnetic field generated with the magnetic field generation means, and the optical modulator element 120 has a reflection film 122 having the reflection face, the elastic film 124 supporting the reflection film 122, a supporting frame 126 which supports the peripheral part of the elastic film and the wiring for driving 128 provided inside the elastic film 124 at the portion at which the reflection film 122 is located. The elastic film 124 is thicker at the portion at which the reflection film 122 is located than at the portion which extends between the reflection film 122 and the supporting frame 126.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2004225284-A (JP)
Title: Floating body structure
Inventor: SHIOZAKI SADAO
IPC: E01D15/14
Filed: 2003-01-21
Abstract: <P>PROBLEM TO BE SOLVED: To provide a simple floating body structure for reducing oscillation of a floating body used for a floating pier or the like, caused by waves.  <P>SOLUTION: This floating body structure is provided with at least a pair of guide pipes which are pipe bodies opened at least at the upper ends and erected on the water bottom below a floating body, and underwater resistors suspended underwater from the floating body by suspension members and liftably arranged in the guide pipes. The underwater resistor is formed of material larger in specific gravity than water in the floatingly installed place of the floating body. The guide pipe is formed of a circular pipe, and when the underwater resistor is formed of a spherical body, the ratio (d/D) of the outer diameter d of the underwater resistor to the inner diameter D of the guide pipe is approximately 0.98.  <P>COPYRIGHT: (C)2004,JPO&NCIPI