baber/WOPTO huggingface dataset:
Patent JP-2003515223-A (JP)
Title: オンライン・オークションを行うためのシステム及び方法
IPC: G06Q30/08
Filed: 2000-11-06
Abstract: (57)【要約】
製品のオンライン・オークションを行なうシステムについてであり、このシステムは必要に応じ多数の競売製品に関する情報を保存・供給するデータベースサーバー１０を含み、そのデータサーバーシステムはオークション時に多数の競売製品に関する多数の入札を受理するものであり、入札数が競売される製品数を決定する。このシステムはまた特定のユーザーによって作動する多数のユーザークライアントを含み、各々のユーザークライアントはデータベースサーバーとコミュニケーションを取る。各々のユーザークライアントは、データベースサーバーから競売製品に関する情報を受理し、競売製品への入札をデータベースサーバーに中継するものである。
Patent JP-2003533972-A (JP)
Title: シクロプロペン誘導体を用いる植物のエチレン応答を遮断する方法
IPC: C07C255/31
Filed: 2000-11-22
Abstract: (57)【要約】
植物のエチレン受容体を遮断するためにシクロプロペン誘導体及びそれらの組成物を適用する方法が開示されている。このような方法の１つは、エチレン応答抑制有効量のシクロプロペン誘導体又はそれらの組成物を植物に適用するステップを含む。植物の脱落を抑制する方法、収穫した果実の成熟を抑制する方法、収穫した野菜の成熟を抑制する方法及び切花の寿命を延長する方法も開示されている。
Patent JP-2003527679-A (JP)
Title: ポートフォリオ評価方法
IPC: G06F19/00
Filed: 2000-11-24
Abstract: (57)【要約】
本発明は、一連の将来シナリオの下で特定のベンチマークに対するその成績に基づきポートフォリオを評価するシステムおよび方法に関する。さらに詳細に記せば、本発明はポートフォリオを選び、ポートフォリオの値が所与の時間範囲においてベンチマークの値より下に落ちると予測される量に対応する第１の値と、ポートフォリオの値が所与の時間範囲においてベンチマークの値を超過すると予測される量に対応する第２の値という、該ポートフォリオに関連した２つの値を、一連の様々な将来シナリオを考慮して、計算する。本発明は、それらの２つの値を最適にトレードオフするポートフォリオを決定しそれらの２つの値を使用して商品、担保、またはポートフォリオをランク評価するために使用することが可能なリスク／報酬成績測度を評価するための手段を提供する。また、本発明は、最適ポートフォリオに対するポートフォリオ・インシュアランスの価格設定を行う手段を提供する。
Patent JP-2003526411-A (JP)
Title: 外部導入式吻合システム及び外部位置決め吻合窓切断装置
IPC: A61B17/34
Filed: 2000-12-14
Abstract: (57)【要約】
圧縮板装置（３００）は種々の吻合形態に、身体内の管を互いに結合することができる。圧縮板（３１０ａ、３１０ｂ）は案内（３３０）によって、平行な方向に相互に案内される。管腔内指向アンビル装置、又は外部に位置するアンビル装置と共に、圧縮板装置（３００）を利用することができる。圧縮板の一方は吻合窓の輪郭を外反転させるのを助ける。圧縮板の一方は移植片側の血管を予め外反転させることができ、これにより吻合窓の輪郭を外反転させる。この装置は身体内の管が貫入されることなく、管を結合し得る構造を提供する。
Patent JP-2004500100-A (JP)
Title: 新規化合物
IPC: C12N5/10
Filed: 2001-03-05
Abstract: 表Ｉに示す遺伝子のポリペプチドおよびポリヌクレオチドならびに組み換え補によるかかるポリペプチドの製造方法を開示する。表Ｉに示す遺伝子のポリペプチドおよびポリヌクレオチドの診断における使用方法も開示する。
Patent JP-2003527121-A (JP)
IPC: A01N59/20
Filed: 2001-03-22
Abstract: A method for combating fungal attack in plants kept in a closed nutritional system (especially a greenhouse) involves releasing free copper ions into the nutrient solution (A) using an electrode pair, consisting of a copper anode and a cathode immersed in (A), under control such that free Cu ions are present in (A) (when supplied to the plants) at 0.1-0.8 ppm. A method for combating fungal attack in plants kept in a closed nutritional system (especially a greenhouse), in which copper ions are added to the nutrient solution (A) and the concentration of (A) is continuously monitored via the conductivity and kept constant by addition of nutrients, free copper ions are released into (A) using an electrode pair, consisting of a copper anode and a cathode immersed in (A). A control unit adjusts the Cu ion release as required, such that the binding threshold of Cu ions in (A) is exceeded and free Cu ions are present in (A) (when supplied to the plants) at a concentration 0.1-0.8 (preferably 0.2-0.3) ppm. An independent claim is also included for the corresponding apparatus. - ACTIVITY : Fungicide. - MECHANISM OF ACTION : None given.
Patent JP-2003531276-A (JP)
Title: ゼオライトｚｓｍ−４８を用いた基油の柔軟性ある生産方法
IPC: C10G45/08
Filed: 2001-04-20
Abstract: (57)【要約】
【課題】  ゼオライトＺＳＭ−４８を用いた基油の柔軟性ある生産方法を提供する。
【解決手段】  炭化水素装入物から高品質の油を生産する方法は、１００〜２０００の水素／炭化水素体積比での水素の存在下でかつ少なくとも１つのVIII群金属及び少なくとも１つのVIB群金属を含む非晶質触媒の存在下で、０．１〜６ｈ     −１ の空間速度で、５〜２５Ｍｐａの圧力下、３３０〜４５０℃の温度で実施される水素化処理段階と、水素化処理の終了時点で得られた流出液の中間分離無しで、水素の存在下でかつ、少なくとも１つのゼオライトを含むと同時に少なくとも１つのVIII族元素及び少なくとも１つのVIB族元素を含む触媒の存在下で、０．１〜５ｈ −１ の空間速度で５〜２５Ｍｐａの圧力下、そして３４０〜４３０℃の温度で実施される水素化分解段階を含む。
Patent JP-2003532919-A (JP)
Title: レーザーパルス成形装置
IPC: G02F1/03
Filed: 2001-05-10
Abstract: (57)【要約】
入力光パルス（５００）を成形して光出力が実質的に一定の出力光パルス（図１で１００）を形成するパルス成形装置。この装置は、制御信号の制御下で入力光パルス（５００）に作用する変調器と、後で処理するために入来光パルスをサンプリングするサンプリング手段とを有する。フィードバック方式では、変調器は、エラー信号の制御下で入来パルスに作用し、入来パルスをサンプリングした後、処理して、処理済みサンプルからエラー信号を発生させる。フィードフォーワード方式では、入来パルスを最初にサンプリングし、サンプルを処理して、変調器が、処理ステップにより生じたエラー信号の制御下に入来パルスに作用する。あるいは、光出力が実質的に一定の出力光パルスを、入来光パルスを所定の光レベルで飽和する制限媒体を通すことにより発生することができる。
Patent JP-2003533583-A (JP)
IPC: G02F1/1503
Filed: 2001-05-07
Abstract: An electrochromic device comprising a pair of glass, plastic plates or plastic films At least one plate or film, is provided with an electrically conductive coating. At least one plate or film and its conductive coating are transparent and the other may be mirrored. The plates or films are joined together and form a volume filled with an electrochromic medium which comprises at least one reducible electrochromic substance OX<SUB>2 </SUB>and at least one oxidizable electrochromic substance RED<SUB>1</SUB>. The OX<SUB>2 </SUB>corresponds to the formula in which R<SUP>201 </SUP>and R<SUP>202</SUP>, each are alkyl, cycloalkyl, alkenyl, aralkyl, aryl, -[C(PQ)]<SUP>-</SUP> or a bivalent bridge B, Z<SUP>201 </SUP>is a bivalent radical of the formulae CR<SUP>210</SUP>R<SUP>211</SUP>, O, C-O or o-phenylene, R<SUP>210 </SUP>and R<SUP>211</SUP>, each are hydrogen, methyl or ethyl, or CR<SUP>210</SUP>R<SUP>211 </SUP>is C<SUB>3</SUB>- to C<SUB>7</SUB>-cycloalkane-1,1-diyl. The rings C, D, E and F, each may be substituted by up to 4 alkyl and/or alkoxy radicals, or respectively, may be linked via a -(CH<SUB>2</SUB>)<SUB>4</SUB>- or -CH-CH-CH-CH- bridge. P and Q, each are -CN or -COO-alkyl. X- is an anion.
Patent JP-2003206187-A (JP)
Title: Interior board and manufacturing method therefor
Inventor: YOSHIDA AKIRA
IPC: C04B41/71
Filed: 2002-01-07
Abstract: <P>PROBLEM TO BE SOLVED: To provide an interior board manufactured without using cement and at a low cost by reducing the number of steps in the manufacturing process, and a manufacturing method therefor.  <P>SOLUTION: The manufacturing method for the interior board by applying a concrete pattern on the surface 1a of the interior board 1 before being mounted and fixed on a mounting place is provided with a recessed board forming step for forming a recessed part 1b for a root hole on the surface 1a of the interior board composed of calcium silicate and a coating step for forming a coating film (a) by applying a synthetic resin emulsion prepared by mixing a prescribed pigment to show nearly concrete color on the whole surface 1a of the interior board 1 having the recessed parts 1b formed in the recessed part forming step.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003200989-A (JP)
Title: Ventilation fan packaging apparatus
Inventor: OKADA TETSUNORI
IPC: B65D85/68
Filed: 2002-01-09
Abstract: <P>PROBLEM TO BE SOLVED: To obtain a ventilation fan packaging apparatus excellent in cushioning function by utilizing a form of a square mounting frame of a ventilation fan including the square mounting frame having a stepped drawn structure.  <P>SOLUTION: The ventilation fan packaging apparatus is for a ventilation fan comprising a square mounting frame 2 for packing vanes 1 and a several mounting legs 4 for supporting a motor 3 for rotating the vanes 1 fixed to one of surfaces of the frame 2 wherein a mounting flange of the frame 2 is of a stepped drawn structure 5. The packaging apparatus includes an upper corrugated fiberboard box 11 without a bottom for putting over a side of the motor 3, a lower corrugated fiberboard box 12 without a lid for wrapping a side of the frame 2, U-shaped side holders 16 oppositely put between the upper box 11 and the lower box 12, and a tying band 17 to be wound around the upper box 11 and the lower box 12. A cushioning medium 13 made of a corrugated fiberboard material to be fitted inside the stepped drawn structure 5 of the frame 2 for holding the frame 2 is provided on a bottom face of the lower box 12.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003205033-A (JP)
Title: Base material for conveyance and preservation of medical solution
Inventor: SUGIMOTO TAKEHIKO
IPC: C08L15/00
Filed: 2002-01-10
Abstract: <P>PROBLEM TO BE SOLVED: To obtain a base material for conveyance and preservation of a medical solution, which has excellent transparency, heat resistance, flexibility and kinking properties and is useful as a substitutive material for polyvinyl chlorides.  <P>SOLUTION: This base material for conveyance and preservation of the medical solution contains (A) a propylene polymer and (B) at least one thermoplastic elastomer selected form an ethylene elastomer (B1) and a hydrogenated styrene-diene elastomer (B2). The ethylene elastomer (B1) may be an ethylene-α- olefinic copolymer and the hydrogenated styrene-diene elastomer (B2) may be a hydrogenated matter of a styrene-butadiene copolymer, a hydrogenated matter of a styrene-butabiene-styrene copolymer, a hydrogenated matter of a styrene-isoprene copolymer or a styrene-isoprene-styrene copolymer. further, the base material preferably contains (C) crosslinked rubber. Olefinic crosslinked rubber is more adequate ad the (C) crosslinked rubber.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003205814-A (JP)
Title: Air bag device for knee protection
Inventor: SUZUKI NORIMASA
IPC: B60R21/20
Filed: 2002-01-11
Abstract: <P>PROBLEM TO BE SOLVED: To provide an airbag device for knee protection capable of mounting as an air bag assembly, while suppressing an assembly error between an air bag cover and an interior finish part, on a vehicle.  <P>SOLUTION: The air bag device S1 for knee protection comprises a case 13 containing the air bag 55 and an inflator 47 and securely mounted on the body B side of the vehicle with the vehicle rear side opened; and an air cover 30 having a shoulder part 44 and a general part 31 the periphery of which is surrounded by an interior finish member 10b of the vehicle and assembled at the case 13. The air bag device S1 is formed so that the air bag 55, and inflator 47, and the air cover 30 are assembled at the case 13 and loaded on the vehicle with the air bag, the inflator, and the air cover formed into an assembly. The air bag cover 30 is movably assembled to the case 13 in a manner to be capable of absorbing an assembly error between the air bag cover and an interior finish member 10b situated at the periphery.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003208635-A (JP)
Title: Image regeneration device and information processing method
Inventor: KOTAKE DAISUKE
IPC: G09B29/00
Filed: 2002-01-15
Abstract: <P>PROBLEM TO BE SOLVED: To make an observer do not feel unnaturalness when performing a walk-through in a virtual space expressed by a panorama image group.  <P>SOLUTION: This device is provided with an operation means for controlling visual point position and visual line direction; a visual point position and visual line direction determination means for determining the next visual point position and visual line direction according to the output of the operation means; and a regeneration means for reading an image according to the visual point position from an image group consisting of two or more images conformed to two or more branch points or a position on the route connecting the branch points, and regenerating a partial image matched to the visual line direction.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003214445-A (JP)
Title: Rolling bearing
Inventor: YATANI KOICHI
IPC: F16C33/66
Filed: 2002-01-18
Abstract: <P>PROBLEM TO BE SOLVED: To provide a rolling bearing usable over a long period by preventing abrasion by the fine edge even in a lubrication insufficient state by adopting a work method of forming no fine edge.  <P>SOLUTION: This rolling bearing is formed by applying surface work so that a depth/opening part length of a recessed part existing on at least one member surface of a rolling body and a bearing ring becomes 0.25 or less.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003210649-A (JP)
Title: Game equipment
Inventor: ISHIBASHI KAZUYOSHI
IPC: A63F5/04
Filed: 2002-01-18
Abstract: <P>PROBLEM TO BE SOLVED: To provide game equipment capable of improving amusement of a game by putting out medals of a number of sheets corresponding to the prise- winning bonus point by a game machine and putting out a progressive bonus to a player by an adjustment apparatus on the basis of game information of at least one game machine.  <P>SOLUTION: The equipment is provided with at least one adjustment apparatus capable of putting out the progressive bonus, an integrating means for integrating a quantity obtained by a prescribed integration condition to the progressive bonus, a judging means for judging whether a prescribed prise winning condition is satisfied, and a control means for putting out the progressive bonus by the adjustment apparatus according to a prescribed putting out condition when the judging means judges that the prescribed prize winning condition is satisfied.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003217793-A (JP)
Title: Heater control device, fixing device, and image forming device
Inventor: HOSOI HIDEAKI
IPC: G03G15/20
Filed: 2002-01-23
Abstract: <P>PROBLEM TO BE SOLVED: To solve the problems in a conventional heater control device that the power source voltage fluctuation which has an electrically bad effect on other electric equipments cannot be reduced, and an inexpensive electronic switch cannot be used.  <P>SOLUTION: In this heater control device, when a plurality of heaters 1 and 2 are lighted, a current is carried to the heaters 1 and 2 not simultaneously but with a time lag to independently softly start and light the heaters 1 and 2. When the heaters 1 and 2 are extinguished, the heaters 1 and 2 are softly stopped with a time lag and extinguished.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003215655-A (JP)
Title: Shutter device
Inventor: TORIGOE YUICHI
IPC: G03B9/10
Filed: 2002-01-24
Abstract: <P>PROBLEM TO BE SOLVED: To provide a shutter device capable of realizing shutter speed at the low-speed shutter time and at the high-speed shutter time with simple constitution.  <P>SOLUTION: The shutter device is equipped with a 1st shutter blade 7 set at a position where it covers an exposure aperture part 5 before photographing and opening/closing the aperture part 5, and a 2nd shutter blade 8 having a small aperture part 17 for making a photographic light pass to the aperture part 5 and opening/closing the aperture part 5 through the aperture part 17 by moving together with the blade 7 from a retreat position. The shutter speed at the low-speed shutter time is realized by moving only the blade 7 with respect to the aperture part 5, and the shutter speed at the high-speed shutter time is realized by integrally moving the blades 7 and 8.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003210663-A (JP)
Title: Game machine
Inventor: MATAYOSHI MASAHIRO
IPC: A63F7/02
Filed: 2002-01-25
Abstract: <P>PROBLEM TO BE SOLVED: To minimize labor for feeding medals.  <P>SOLUTION: A nozzle 45 to be fitted to the front face door of a slot machine comprises a medal reception part 46, a medal path 47 and a nozzle reel part 48. The nozzle 45 is fitted rotatably between a medal receiving position where the medal receiving part 46 is positioned under the shooter 7 of a medal renting machine and a housing position where the medal reception part 46 is housed in a recess 30a formed at the lower panel of the front face door. On the top of the nozzle reel part 48, an additional feeding port 60 capable of batch feeding a plurality of medals put out to a medal tray is formed. The medals from the medal renting machine can be fed directly into the slot machine, and the medals put out to the medal tray can be fed from the additional feeding port 60.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003210828-A (JP)
Title: Game device, controller vibration-controlling method and game program
Inventor: TAKASHIMIZU HIBIKI
IPC: A63F13/285
Filed: 2002-01-28
Abstract: <P>PROBLEM TO BE SOLVED: To provide a game device wherein the kinds of cards or the skill can be confirmed only by a player himself without being known by other players by preventing the display from being displayed, and with which the game can be formed into a television game while a plurality of players participate and enjoy the game, without spoiling the game property.  <P>SOLUTION: When an optional input is performed from a controller 11 to a specified confidential object which is being displayed, a comparing- discriminating means 23 reads a corresponding table 22 from a corresponding table storage means 14. Then, the comparing-discriminating means 23 compares and discriminates whether the combination of the input control signal and the kind of the confidential object being displayed coincides combinations of control signals which are set in advance in the corresponding table 22 and kinds of confidential objects. When they coincide, a vibration processing means 24 vibrates the controller 11 and the coincidence is notified to the player.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003223436-A (JP)
Title: Document management device and document management system
Inventor: ICHIHARA MASAHIRO
IPC: G06F17/21
Filed: 2002-01-28
Abstract: <P>PROBLEM TO BE SOLVED: To provide a document management device for managing the bibliography information of document types used in the classification of documents.  <P>SOLUTION: The document management device has on a server a cabinet capable of registering and managing bibliography information. A document copy registered in the cabinet is checked to see if it is a document copy from another cabinet or a document copy from another server; the type of document to which the document copy belongs is registered along with the cabinet from which the document copy originated and the document copy coming from the server.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003222188-A (JP)
Title: Damping device for structure
Inventor: KURABAYASHI HIROSHI
IPC: F16F1/06
Filed: 2002-01-29
Abstract: <P>PROBLEM TO BE SOLVED: To provide a damping device for a structure in which an inexpensive simple-structure steel product can be used with fatigue high characteristics and uniformly distributed stress by reason that.  <P>SOLUTION: A bar steel product is formed in a coil-like effective coil portion 2 by determining a material diameter d, a coil center diameter D, a pitch h and the number of turns t in accordance with a design procedure using a predictive formula for a predetermined stress amplitude. Thus, vibration energy applied in the axial direction and the axially right-angled direction of the effective coil portion 2 is made absorbable through an elasto-plastic deformation, and also a joining portion 3 is provided for coupling a structure or a unit or the like at both the ends of the effective coil portion 2.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003224106-A (JP)
Title: Wet etching system
Inventor: WATABE HIROSHI
IPC: H01L21/306
Filed: 2002-01-29
Abstract: <P>PROBLEM TO BE SOLVED: To provide a wet etching system in which etching can be carried out while prolonging the lifetime of etching liquid by controlling the concentration of Si ions in the etching liquid to a constant level and sustaining the etching selectively of an Si<SB>3</SB>N<SB>4</SB>film and an SiO<SB>2</SB>film at a constant level, by depositing SiO<SB>2</SB>in the etching liquid forcibly while taking out a part thereof from an etching liquid pressure circulation passage during an etching process and collecting the deposited SiO<SB>2</SB>.  <P>SOLUTION: In the wet etching system where a semiconductor material W on which an Si<SB>3</SB>N<SB>4</SB>film and an SiO<SB>2</SB>film are formed is immersed into high temperature etching liquid M of phosphoric acid in an etching tank 1 and the Si<SB>3</SB>N<SB>4</SB>film is removed selectively by etching, an air vent passage 6 is branched from the way of a passage 2 for pressure circulating the etching liquid M in the etching tank 1 toward the etching tank 1. The air vent passage 6 is coupled with a unit 7 for collecting and removing SiO<SB>2</SB>produced in the etching liquid M while being deposited forcibly by means of cold water or air cooling and oxidation. Consequently, the etching liquid M can be purified by removing SiO<SB>2</SB>during the etching process.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003220940-A (JP)
Title: Brake control system
Inventor: INOUE GEN
IPC: B60T8/172
Filed: 2002-01-30
Abstract: <P>PROBLEM TO BE SOLVED: To make vehicle behavior stabilization compatible with large braking force generation by preventing an increase in braking force difference between left and right wheels when ABS control is executed on a split μ road with different road surface μ values of the left and right wheels.  <P>SOLUTION: A brake control system is so designed that a control unit CU, in a state to execute ABS control on either of left and right wheels and not to execute ABS control on the other of the left and right wheels, executes split μ road control where an increase in wheel cylinder pressure in dependence on a driver's braking operation is reduced to offer a gradual increase about inflow valves 5 for the other wheels. During the execution of split μ road control, the control unit CU determines, from a wheel speed of either of the left and right wheels, whether the wheel speed is below a given value or not, and if the wheel speed is in a range not lower than the given value, offers a relatively sharper degree of gradual increase than the case of the wheel speed being in a range below the given value.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003221193-A (JP)
Title: Jack operation control device for work vehicle
Inventor: OBA TAKAAKI
IPC: B60S9/20
Filed: 2002-01-30
Abstract: <P>PROBLEM TO BE SOLVED: To prevent a vehicle from runaway while surely preventing the vehicle from tumbling by automatically stopping a jack in a prescribed length, in case of supporting the vehicle by the jack with a roller grounded.  <P>SOLUTION: This jack operation control device for a work vehicle is constituted by providing a vehicle having a wheel to be capable of running, a plurality of jacks arranged in a side part of the vehicle to support it, a roller journaled to a lower end part of the jack to be capable of being grounded, a jack base having a grounding plate to freely move selectively between a plate grounded position covering a lower surface of the roller and a refuge taken position exposing the lower surface of the roller, a grounding plate position detection means detecting the grounding plate for whether it is positioned in the plate grounded position or the refuge taken position, and an extending operation control means regulating extending operation of a prescribed length or more of the jack in the case that the grounding plate is positioned in the refuge taken position.  <P>COPYRIGHT: (C)2003,JPO
Patent JP-2003220306-A (JP)
Title: Filter, seawater treatment method using this filter and method for regenerating flocculant
Inventor: FUCHIWAKI TETSUJI
IPC: C02F1/52
Filed: 2002-01-31
Abstract: <P>PROBLEM TO BE SOLVED: To realize the rapid filtering treatment of seawater and the efficient removal of suspended particles in the seawater and further, the purification of a seawater quality, the size reduction of a filter in salt manufacture, the decrease in quantity of back wash water and the recycling of a flocculant.  <P>SOLUTION: The filter is structured of a cylindrical column and a conical column with the reduced ratio of its bore connected to the lower part of the former and a perforated plate fitted to the upper end of the cylindrical column and the lower end of the conical column. In addition, in the filter, the conical column has a filter medium layer formed of a fibrous filter medium and a baffle mounted on the upper part of the cylindrical column for the purpose of removing the suspended particles of the seawater. The seawater treatment method comprises the step to flow 30 to 100 m/H of the seawater with an added flocculant from the upper end of the cylindrical column of the filter and achieve the adsorption of the suspended particles and the flocculated flock particles of the seawater by the filter medium after filtering the seawater, the step to perform the back flow cleaning by supplying water with an added acid and air from the lower end of the conical column, the step to separate/ remove the suspended particles adsorbed by the filter medium and the step to ionize/ recover the flocculated flock particles adsorbed by the filter medium.  <P>COPYRIGHT: (C)2003,JPO