baber/WOPTO huggingface dataset:
Patent JP-2012507581-A (JP)
Title: 二重特異性細胞内送達媒体
IPC: A61K47/30
Filed: 2009-05-13
Abstract: 二重特異性親和性作用物質およびｐＨ応答性の膜不安定化ポリマーを含む細胞に対して作用物質を送達するための組成物。当該二重特異性親和性作用物質は、第２の親和性作用物質に共有結合性に連結された第１の親和性作用物質を含んでよく、当該第１の親和性作用物質は、細胞の表面の物質に対して結合し、当該第２の親和性作用物質は細胞内ターゲットに対して結合する。 【選択図】図１
Patent JP-2012508104-A (JP)
Title: 脱水素用途のための銅触媒
IPC: B01J37/00
Filed: 2009-11-05
Abstract: 約３５質量％〜約７５質量％のＣｕ、約１５質量％〜約３５質量％のＡｌ、及び約５質量％〜約２０質量％のＭｎを含む触媒組成物を開示している。触媒組成物は、Ｃｕ（ＮＯ３） 2 、Ｍｎ（ＮＯ 3 ） 2 及びＮａ 2 Ａｌ 2 Ｏ 3 の沈降反応から形成される粉末を押出し、焼成することにより形成されるバルク均質組成物である。触媒組成物は、ＣｕＯ及びＣｕ x Ｍｎ (3-x) Ｏ 4  の１つ以上から選ばれる実験式を有する一つ以上の結晶性相を有し、ｘは約１〜約１．５である。触媒組成物は、脱水素反応による１，４−ブタンジオールのγ−ブチロラクトンへの変換に有用である。 【選択図】図１
Patent JP-2012509283-A (JP)
Title: 膵機能障害の治療または予防方法
IPC: A61P35/00
Filed: 2009-11-19
Abstract: 本発明は、それを必要とする被験体において膵機能を改善する方法を提供し、本方法は、被験体にＳＴＲＯ−１ ＋ 細胞および／またはその子孫細胞および／またはそれらに由来する可溶性因子を投与するステップを含む。本発明の方法は、膵機能障害によりもたらされる、または膵機能障害に関連する障害、例えば、膵臓の内分泌機能または外分泌機能の異常によりもたらされる障害の治療および／または予防および／または発症もしくは進行の遅延のために有用である。
Patent JP-2012510604-A (JP)
Title: ソーラールーフィングアセンブリ
IPC: F24J2/04
Filed: 2009-12-01
Abstract: ソーラールーフィングアセンブリ（１）は、正面構造（３０）と背面構造（３１）を有する少なくとも一つの光起電力デバイス（３）と、正面構造（４０）と背面構造（４１）を有し温水を供給できる少なくとも一つのソーラーコレクター（４）を備える。光起電力デバイス（３）と温水ソーラーコレクター（４）のそれぞれの正面構造（３０，４０）はカバーを形成するガラス基板（２０，２２）から成り、カバーは外側環境に向き合うための上面（１０）とその反対側で内面（１１）を有し、光起電力デバイス（３）と温水ソーラーコレクター（４）のそれぞれの背面構造（３１，４１）はカバーの下に配置され、内面（１１）に面する。ガラス基板（２０，２２）は金属枠を有せずに接合されるが、任意的に一様で統一的なガラスカバーを形成するように他のガラス基板（２１）によって隔てられている。
Patent JP-2012513605-A (JP)
Title: 自動立体視表示装置
IPC: G02B30/30
Filed: 2009-12-16
Abstract: ビュー形成モジュールにわたって位置合わせされて配置される画像形成手段を有するマルチビュー自動立体視表示装置が開示される。画像形成手段は、表示を生成するためのロウとカラムで配置される光放射表示ピクセルの平面アレイを持ち、表示ピクセルは不透明なマトリックスによって空間的に定められる。画像形成手段は、例えば液晶ディスプレイ・パネルであることができる。ビュー形成モジュールは、表示装置の幅方向に配置される複数のビュー形成素子として機能するように構成可能であり、各々のビュー形成素子は、それぞれ異なる方向におけるユーザに向けた投射のために、表示ピクセルの隣接するグループから出力される光を複数のビューへと焦束する。ビュー形成モジュールは、例えばレンチキュラ・レンズのアレイであることができる。ビュー中の輝度不均一性を低減するために、ビュー形成素子のジオメトリーは、表示装置の幅方向において、実質的に周期的な素子間変動を定める。
Patent JP-2012516104-A (JP)
Title: オーディオ信号のアライメント方法
IPC: G10L21/00
Filed: 2009-01-26
Abstract: 本開示における方法、装置及びコンピュータプログラムは、未劣化信号に対応するリファレンス信号を複数のリファレンス信号セグメントに分割し、各リファレンス信号セグメントに基づいてフィルタ係数を生成し、リファレンス信号セグメントの各々を、対応する該生成されたフィルタ係数を用いてフィルタリングすることができる。方法、装置及びコンピュータプログラムは、更に、生成されたフィルタ係数の各々を用いてリファレンス信号の遅延信号を含む劣化信号をフィルタリングし、上記複数のリファレンス信号セグメントの数に等しい数の劣化信号を生成し、上記フィルタリングされた劣化信号毎に、対応する上記フィルタリングされたリファレンス信号セグメントに対するタイムアライメントを実行し、その実行に基づいて時間オフセットを出力することができる。
Patent JP-2012517079-A (JP)
Title: 照明システム
IPC: H05B44/00
Filed: 2010-02-02
Abstract: 本発明は、光源として少なくとも１つのルミネセンスダイオードチップ（１１）を含む少なくとも１つの照明手段（１）と、接続線路（２）を介して前記照明手段（１）に接続された少なくとも１つの通電手段（３）とを有する照明システムに関する。前記通電手段（３）は、前記照明手段（１）に通電するように構成されており、前記通電手段（３）は少なくとも１つのフィルタエレメント（４）を含み、前記フィルタエレメント（４）は、前記通電手段（３）に電力を供給するための電力供給部（７）から該通電手段（３）に入力された信号と、該通電手段（３）から該電力供給部（７）へ出力される信号とをフィルタリングするように構成されている。
Patent JP-2013143923-A (JP)
Title: Air conditioner
Inventor: NAKAJIMA KUNIHIRO
IPC: A01K1/00
Filed: 2012-01-16
Abstract: PROBLEM TO BE SOLVED: To provide an air conditioner capable of air-conditioning an animal house to a comfortable state without causing useless consumption of electric power.SOLUTION: An animal house is air-conditioned on the conditions that the temperature in the house is a set value or more, an animal is in the house, and the animal in the house behaves sensitively to heat.
Patent JP-2012111954-A (JP)
Title: Process for making and composition of superior lubricant or lubricant blendstock
Inventor: ELOMARI SALEH
IPC: C10M107/02
Filed: 2012-01-23
Abstract: PROBLEM TO BE SOLVED: To provide a process for making a lubricant or lubricant component, wherein the process includes a step of forming an alkylated oligomeric product having low olefin content, a cloud point less than -50 °C, a viscosity index of at least 134, and a difference between the T90 and T10 boiling points of at least 225 °F by simulated distillation (SIMDIST).SOLUTION: The process includes: a step of oligomerizing a feed comprising one or more olefins in an ionic liquid oligomerization zone; and a step of alkylating the oligomer in the presence of an isoparaffin, in an ionic liquid alkylation zone.
Patent JP-2012100347-A (JP)
Title: Information processing equipment, information processing method, and program
Inventor: KOBAYASHI YOSHIYUKI
IPC: H04N13/00
Filed: 2012-01-26
Abstract: PROBLEM TO BE SOLVED: To change a video mode without resetting a graphics plane.SOLUTION: Each of a graphics plane for storing graphics images and a video plane for storing video images is a storage region where an L region to store images for L and an R region to store images for R are disposed in an array. When a video mode is changed from a stereo video mode to a mono video mode, images stored in one of the L and R regions on the graphics plane are kept to display. This technology can be applied to, e.g., a BD player for reproducing a BD.
Patent JP-2013158071-A (JP)
Title: Corrugated tube
Inventor: HOTTA YOSHIO
IPC: H02G3/04
Filed: 2012-01-26
Abstract: PROBLEM TO BE SOLVED: To provide an easy-to-bend corrugated tube.SOLUTION: Since a corrugated tube 20 is formed so that the cross-section has a hollow triangular shape with rounded corners, and level differences formed repeatedly in the length direction is larger at each corner than on each side of the triangle, an easy-to-bend corrugated tube can be provided. Consequently, three wires 30U, 30V, 30W for three-phase motor covered with the corrugated tube 20 can be wired more easily.
Patent JP-2013158113-A (JP)
Title: Vehicle with at least electric motor as drive source
Inventor: NAKAO MASARU
IPC: B60W10/00
Filed: 2012-01-27
Abstract: PROBLEM TO BE SOLVED: To provide a vehicle configured so that "an electrical driving range displayed when starting operation immediately after completion of external charging" does not largely decrease when an energy storage device is normal.SOLUTION: In a hybrid vehicle 10 capable of performing electric traveling using only output of a second motor generator MG2, a display control part calculates an electrical driving range for display that increases proportional to "an electrical driving range determined on the basis of an electrically travelable remaining capacity and an electric cost corresponding value" and decreases with the increase of "a capacity when fully charged" on the basis of a battery remaining capacity suppliable from an energy storage device to the second motor generator MG2 for electric traveling, the electric cost corresponding value that is a value corresponding to a driving range of the vehicle per unit amount of the battery remaining capacity, and the capacity of the battery when fully charged. The display control part displays the electrical driving range for display on a driving range display.
Patent JP-2012131231-A (JP)
Title: Composite film suitable for use in opto-electronic and electronic device
Inventor: MACDONALD WILLIAM ALASDAIR
IPC: H05B33/04
Filed: 2012-02-02
Abstract: PROBLEM TO BE SOLVED: To provide a film having improved barrier properties, which is suitable for use as a substrate, particularly, as a flexible substrate in the production of opto-electronic and electronic devices (particularly devices including conductive polymers) including EL devices (particularly OLED), photovoltaic cells and semiconductor devices (such as organic field-effect transistors, thin film transistors and general integrated circuits).SOLUTION: The composite film includes: a polymer substrate; a planarizing coating layer; and an inorganic barrier layer. The barrier layer has a thickness of 2 to 1,000 nm, and the composite film can be obtained by reactive magnetron sputtering activated with microwaves.
Patent JP-2013163913-A (JP)
Title: Seal structure between tunnels
Inventor: IGASAKI KEI
IPC: E21D13/04
Filed: 2012-02-10
Abstract: PROBLEM TO BE SOLVED: To provide a seal structure between tunnels which can obtain sufficient water sealing performance.SOLUTION: A seal structure S between tunnels, the seal structure being provided between a preceding tunnel 10b and a succeeding tunnel 10a constructed adjacent thereto, comprises: a seal member 30 provided on the surface of the succeeding tunnel 10a; and a plurality of seal mounting brackets 40 for fixing the seal member 30 to the succeeding tunnel 10a. The seal member 30 extends along the propulsion direction of the succeeding tunnel 10a and projects to the preceding tunnel 10b side, and a tip thereof abuts against the preceding tunnel 10b. The seal mounting brackets 40 have a seal pressing plate 46 for pressing the seal member 30 to the preceding tunnel 10b side. The surface facing the seal member 30 of the seal pressing plate 46, of at least one seal mounting bracket 40 among the plurality of seal mounting brackets 40 is formed with a projection 49 along the extension direction of the seal member 30.
Patent JP-2013164763-A (JP)
Title: Duplex system switching controller
Inventor: MINATO KEIICHI
IPC: G06F11/20
Filed: 2012-02-13
Abstract: PROBLEM TO BE SOLVED: To provide a duplex system switching controller for detecting abnormality of a determination part which determines a current system and a standby system and stopping an operation of the determination part where the abnormality is detected, by a simple configuration.SOLUTION: When control data is generated by control data generation parts 35-37 respectively, three determination parts A31, B32 and C33 of a system switching determination device 3 which determines arithmetic processing units of an active system and a standby system on the basis of state data transmitted from respective arithmetic processing units 1 and 2 and transmits control data to the respective arithmetic processing units respectively transmit the control data to the other determination parts. In each determination part, the control data generated in its own control data generation part and the control data transmitted from the other determination parts are compared by other part abnormality determination parts 38-40, and when they do not match, stop signals are transmitted to the other determination part, and for the determination part which receives the stop signals from all the other determination parts, the operation of the determination part is stopped by stop control parts 41-43.
Patent JP-2013165767-A (JP)
Title: Crane game apparatus
Inventor: HARA BUNJIRO
IPC: A63F9/30
Filed: 2012-02-14
Abstract: PROBLEM TO BE SOLVED: To allow prizes to be placed in desired positions more freely.SOLUTION: A crane game apparatus 10 controls a crane arm as a player operates the crane arm, and controls the crane arm to hold a prize stored in a case 12 and carry it to a chute. In the case 12, prize table units 17L1, 17L2, and 17L3 are provided, which have multi-joint manipulators to support plate members where prizes can be placed.
Patent JP-2013166196-A (JP)
Title: Wire discharge processing machine that carry out distortion removal process
Inventor: TAKAHASHI SHOJI
IPC: B23H7/06
Filed: 2012-02-15
Abstract: PROBLEM TO BE SOLVED: To provide a wire discharge processing machine which can identify the spot of occurrence of distortion and estimate the amount of distortion, and thereby enables efficient processing to reduce a processing time.SOLUTION: <1> A wire electrode 1 is temporarily stopped from moving at a position at which the wire electrode 1 is in contact with a workpiece 2 when retracing is performed. <2> The wire electrode 1 or the workpiece 2 is moved relatively in an offset direction to release the contact between the wire electrode 1 and the workpiece 2. <3> The relative distance between a position at which the contact between the wire electrode 1 and the workpiece 2 is released and a processing path is stored in a memory. <4> The wire electrode 1 is moved back to the processing path, and retracing is performed along a preset distance in a condition where detection of contact between the wire electrode 1 and the workpiece 2 is neglected. <5> When the wire electrode 1 and the workpiece 2 are not contact with each other, a normal retracing action is carried out again. <6> When the wire electrode 1 and the workpiece 2 are in contact with each other, a contact breaking action is carried out and distortion removal processing is executed based on the determined relative distance.
Patent JP-2013170609-A (JP)
Title: Working vehicle
Inventor: TAKASUGA MAKOTO
IPC: B60K20/04
Filed: 2012-02-20
Abstract: PROBLEM TO BE SOLVED: To provide a moving vehicle equipped with a mechanism having a relevance between the operation of a hydraulic continuously variable transmission (HST) and the seating etc. of a driver onto a driver's seat.SOLUTION: An engine rotation sensor 5a detects operation of an engine 5. An auxiliary transmission lever operation position sensor 21a detects that an auxiliary transmission 38 is in a power transmittable state. While a vehicle body 1 is moved forward or backward by switches 10a, 10b, after a seating sensor 9a detects that a driver is seated on a driver's seat 9, or after a human sensor 18 detects that no one exists on or near the driver's seat 9, a controller 100 performs a control to enable the function of an accelerator pedal 15.
Patent JP-2013169160-A (JP)
Title: Device for removing gladius
Inventor: YAMAMOTO MASAKAZU
IPC: A23L17/50
Filed: 2012-02-20
Abstract: PROBLEM TO BE SOLVED: To simply and easily remove a gladius without opening a squid mantle.SOLUTION: A device for removing a gladius comprises a cylindrical body 12 to be inserted into a squid mantle 1 and a motor 14 for rotating the cylindrical body 12. A folding part 23 having a predetermined length in the axial direction and two or more holding members 21 having a platy hooking unit 24 whose tip is curved in the rotational direction are installed on the peripheral surface of the cylindrical body 12, wherein the length of each holding member 21 in the axial direction is equal to or less than half the length of the cylindrical body and each holding member 21 is arranged at a position having a circumferential angle different from that of the adjacent holding member 21 in the axial direction. The holding members 21 hook and gut the gladius 3 along with the rotation.
Patent JP-2012171093-A (JP)
Title: Detection of force and perpendicularity for end effector clamp
Inventor: SARH BRANKO
IPC: B25J15/06
Filed: 2012-02-21
Abstract: PROBLEM TO BE SOLVED: To provide a system for accurately measuring a clamping force during boring.SOLUTION: A robot system 100 is provided with an end effector 110 including an electromagnetic clamp, a force sensor 116 attached to the end effector to measure a force applied to a surface of a machining object by the clamp 114, and a plurality of perpendicularity sensors 118. The perpendicularity sensors 118 are arranged around the force sensor 116 to determine whether or not the clamp is perpendicular to the surface of the machining object, before the force sensor contacts the surface.
Patent JP-2013175987-A (JP)
Title: Data update system and data update method
Inventor: TAKEI HIROZUMI
IPC: H04M3/42
Filed: 2012-02-27
Abstract: PROBLEM TO BE SOLVED: To provide a data update system and a data update method that transmit data having been updated to a home subscriber server when the data is stored and updated by a service providing server providing service for a subscriber terminal.SOLUTION: In a data update system that performs data update processing by a service providing server CSCF100 providing service for a subscriber terminal and a home subscriber server HSS200 having data needed to provide the service, the service providing server includes data storage means of storing data and data update means of updating the data stored in the data storage means, and transmitting the data having been updated to the home subscriber server so as to let the home subscriber server update data of the home subscriber server.
Patent JP-2013176257-A (JP)
Title: Synchronous rectification type dc-dc converter
Inventor: MICHIOKA HIROAKI
IPC: H02M3/28
Filed: 2012-02-27
Abstract: PROBLEM TO BE SOLVED: To provide a configuration capable of improving efficiency for a synchronous rectification type DC-DC converter, which supplies a stable direct current voltage to a load.SOLUTION: A switching transistor Qp is connected to a primary winding n1 of a transformer T, and a plurality of rectification-side transistors Qs1 to Qs3 and a plurality of flywheel-side transistors Qf1 to Qf3 are connected to a secondary winding n2 of the transformer T. A first tertiary winding n3-1 and the rectification-side transistors are connected so that an induction voltage of the first tertiary winding is applied to gates of the rectification-side transistors; and a second tertiary winding n3-2 and the flywheel-side transistors are connected so that an induction voltage of the second tertiary winding is applied to gates of the flywheel-side transistors, and output currents of the rectification-side transistors and the flywheel-side transistors are supplied to a load LD through a smoothing circuit. A current determination control section ICNT controls the number of parallel connections of the rectification-side transistors and the flywheel-side transistors according to a current supplied to the load, thereby improving efficiency by a reduction of, for example, drive loss.
Patent JP-2012179594-A (JP)
Title: Water jet gun having detachable valve cartridge, adjustable hand grip, and adjustable gunstock
Inventor: PACHT AMOS
IPC: B05B15/06
Filed: 2012-02-28
Abstract: PROBLEM TO BE SOLVED: To provide an adjustment assembly which adjustably connects (1) a hand grip of a water jet gun to a barrel or (2) a gunstock of the water jet gun to a supply pipe.SOLUTION: The adjustment assembly includes a cam pin having a notch. The cam pin (1) connects to a grip 72 and is close to a barrel 88, or (2) connects to the gunstock. Knobs 76a and 76b rotatably connect to the cam pin. The assembly of the water jet gun includes: a body; a valve cartridge; an access port; and an adaptor 50. The adaptor has a thread screwed with the body and is formed by a head located above the body. The adaptor is fastened by a hand and the water jet gun is in an operable state without further fastening the adaptor. In the operable state, the adaptor is detachable from the body by a person gripping the head with a hand to turn the adaptor by the hand without relying on a hand tool.
Patent JP-2012158593-A (JP)
Title: Tetrahydropyran compound, liquid crystal composition, and liquid crystal display device containing the liquid crystal composition
Inventor: MASUKAWA TOKIFUMI
IPC: C09K19/30
Filed: 2012-02-29
Abstract: PROBLEM TO BE SOLVED: To provide a liquid crystal compound having general physical properties necessary to the compound, low viscosity, proper optical anisotropy, proper anisotropy of permittivity, and excellent compatibility with other liquid crystal compounds; a liquid crystal composition having a wide temperature range of nematic phase, low viscosity, proper optical anisotropy, and a low threshold voltage; and a liquid crystal display device containing the composition.SOLUTION: The compound is represented by formula (1), wherein Rand Rare each, for example, 1C-10C alkyl; T, Tand Tare each independently tetrahydropyran-2,5-diyl or tetrahydropyran-3,6-diyl; Aand Aare each 1,4-cyclohexylene or 1,4-phenylene; Z, Z, Zand Zare each a single bond or 1-4C alkylene; n and i are each 0 or 1; and j, k and m are each 0, 1 or 2.
Patent JP-2013181183-A (JP)
Title: High strength cold rolled steel sheet having low in-plane anisotropy of yield strength, and method of producing the same
Inventor: OKUDA KANEHARU
IPC: C22C38/38
Filed: 2012-02-29
Abstract: PROBLEM TO BE SOLVED: To provide a high strength cold rolled steel sheet having low in-plane anisotropy of yield strength and excellent press formability.SOLUTION: A high strength cold rolled steel sheet has a composition comprising by mass%, C: 0.06 to 0.12%, Si: not more than 0.7%, Mn: 1.2 to 2.6%, P: not more than 0.020%, S: not more than 0.03%, sol. Al: 0.01 to 0.5%, and N: not more than 0.005%, with the balance being Fe and inevitable impurities, and has a structure comprising a ferrite phase in a volume ratio of 60% or more as a main phase and a martensite phase in a volume ratio of 5% or more and not more than 20%, relative to the whole steel sheet structure, with a three dimensional crystal orientation distribution function at {φ1, Φ, φ2}={0°, 35°, 45°} made to be not higher than 2.5.
Patent JP-2013179995-A (JP)
Title: Mist generation device
Inventor: INOUE KAZUHIKO
IPC: A61H33/00
Filed: 2012-02-29
Abstract: PROBLEM TO BE SOLVED: To prevent mist generated in a centrifugal type mist generation device from sticking to a surrounding structure and turning into droplets, and to discharge almost all of the generated mist to the outside of the device.SOLUTION: A centrifugal type mist generation device includes: a generation board 2 provided in a body part 1; a driving structure 3 for rotationally driving the board 2; a water supply structure 4 for supplying liquid to the generation board 2; and a mist guide 5 disposed around the generation board 2, for discharging and guiding the mist generated in the board 2 toward an external space, or the like. The mist guide 5 is provided with a mist sticking prevention means for preventing the mist discharged from the generation board 2 from sticking to the inner surface of the mist guide 5. The mist sticking prevention means includes a blower 6 for sending conveyance air toward a mist discharge port 48, and a guide cylinder 7 for guiding flow toward the mist discharge port 48 in cooperation with the mist guide 5.
Patent JP-2013180684-A (JP)
Title: Parking support device
Inventor: SUZUKI HAYATO
IPC: B60R21/00
Filed: 2012-03-02
Abstract: PROBLEM TO BE SOLVED: To provide a parking support device dispensing with a special display device.SOLUTION: A parking support device includes a steering angle detector 4 detecting the steering angle of a vehicle; a target steering angle computing device 6 computing a target steering angle during parking operation; a parking operation-in-progress determining section 11 determining whether a parking operation is in progress, and a parking operation-in-progress display control section 12 controlling a left side turn signal indicator 21 and a right side turn signal indicator 22 based on the steering angle detected by the steering angle detector 4 and the target steering angle computed by the target steering angle computing device 6 when the parking operation-in-progress determining section 11 determines that the parking operation is in progress.
Patent JP-2013180119-A (JP)
Title: Shoes drying tool and bedding dryer provided with the same
Inventor: INAMI JUNICHI
IPC: D06F58/00
Filed: 2012-03-02
Abstract: PROBLEM TO BE SOLVED: To provide a shoes drying tool that can dry right and left shoes and requires a smaller storage space than before in an inner part of a housing of a bedding dryer, and to provide the bedding dryer provided with the shoes drying tool.SOLUTION: The shoes drying tool has both end parts that are opened and formed into a cylindrical shape, has a notch part 4a that is formed by notching a part of a peripheral wall from the side of an air outlet 3 toward the side of a hose insertion port 2, has a notch part 4b that faces the notch part 4a and is formed by notching at least a part of the peripheral wall from the side of the air outlet 3 toward the side of the hose insertion port 2, and has such a structure that a hose can be inserted so that an end of a joint 12 is arranged so as to be closer to the side of the air outlet 3 than to bottom parts of the notch parts 4a and 4b.
Patent JP-2013032685-A (JP)
Title: Method for repairing drain ditch
Inventor: SATO TAKENORI
IPC: E03F7/00
Filed: 2012-03-07
Abstract: PROBLEM TO BE SOLVED: To provide an innovative method for repairing a drain ditch capable of exerting an unprecedented action effect.SOLUTION: In an innovative method for repairing a drain ditch, side wall parts 1a are suspended on left and right sides of a top wall part 1d having an opening window 1e, and a cross-sectional inverted U-shaped drain ditch block 1 which is provided with a cover body placing stepped part 1c for placing a cover body 4 thereon at opposite left and right inner sides of the opening window 1e is laid to form the drain ditch.