baber/WOPTO huggingface dataset:
Patent JP-2012107150-A (JP)
Title: Polyacetal resin composition, and molded article thereof
Inventor: FUJIMOTO KUNIHIKO
IPC: C08L59/04
Filed: 2010-11-19
Abstract: PROBLEM TO BE SOLVED: To provide a polyacetal resin composition which is less likely to generate formaldehyde derived from decomposition of a polyacetal resin, and is less likely to contaminate a metal mold.SOLUTION: The polyacetal resin composition contains 100 pts.mass of (A) a polyacetal resin, 0.01 to 5 pts.mass of (B) a hydrazide compound, and (C) a compound having a carboxyl group or a polyester of 0.07 to 30 mmol in terms of carboxyl group to 1 g of the (A) polyacetal resin.
Patent JP-2012112121-A (JP)
Title: Excavation method of ground under spread foundation and base-isolating method of existing building
Inventor: YASUOKA CHIHIRO
IPC: E02D17/08
Filed: 2010-11-22
Abstract: PROBLEM TO BE SOLVED: To excavate the ground under a spread foundation without constructing a temporary receiving pile.SOLUTION: After constructing a shaft, excavation of the ground 29 under a spread foundation 22 of an existing building 20 is started from an entrance at the depth to an excavation bottom surface 48. That is, the excavation is advanced from a footing 24A to a footing 24B. When the front side in an excavation direction of the footing 24B is excavated, the footing 24B is obliquely received by an inclined support 54 inclined in the same direction as a slope face 50. The lower part of the inclined support 54 is received by a slide-stop support 56. When the excavation is advanced further to the center part of the footing 24B, the footing 24B is obliquely supported similarly by an inclined support 55, and the lower part of the inclined support 55 is received by a slide-stop support 57. Thereafter, the inclined support 54 and the slide-stop support 56 are detached, and a part which has been received by the inclined support 54 is received again in the vertical direction by a vertical support 60. As a result, the footing 24B is continuously supported by the inclined support 55, the vertical support 60 and the ground 29.
Patent JP-2012115153-A (JP)
Title: PANCREATIC β-CELL LINE
Inventor: USUI TAKASHI
IPC: A61P5/48
Filed: 2010-11-29
Abstract: PROBLEM TO BE SOLVED: To provide a cell useful for elucidating the mechanism of insulin secretion, and to provide insulin secretion inhibitors.SOLUTION: There is provided a pancreatic β-cell line allowing subculture, and secreting a green fluorescent protein-labeled insulin in a glucose-concentration-dependent manner. Furthermore, there are provided the insulin secretion inhibitor containing lithium chloride; an insulin secretion inhibitor containing a glycogen synthase kinase (GSK) 3β expression inhibitor; and an insulin secretion inhibitor containing GSK3β-siRNA (small-interfering RNA).
Patent JP-2012118605-A (JP)
Title: Image forming apparatus
Inventor: SHIRAISHI TAKANORI
IPC: G03G21/14
Filed: 2010-11-29
Abstract: PROBLEM TO BE SOLVED: To provide an image forming apparatus capable of suppressing time and effort when forming an image based on image information.SOLUTION: The image forming apparatus comprises: an image information receiving section 101 which receives the image information including identification information; a storing section 80 which stores the received image information; a timing section 110 which starts timing when receiving the image information; a login/logout processing section 91 which performs login processing etc. based on authentication of the identification information of a user; a touch panel 71 which outputs an alarm; a determining section 92 which determines whether the identification information included in the image information stored on the storing section 80 corresponds with the identification information authenticated when the login/logout processing section 91 performs the login processing; and an alarm controlling section 93 which controls the touch panel 71 to output the alarm when the determining section 92 determines correspondence of the each piece of identification information and the time timed by the timing section 110 reaches a predetermined time.
Patent JP-2012117786-A (JP)
Title: Heat pipe
Inventor: FURUTA NORIBUMI
IPC: H01L23/427
Filed: 2010-12-03
Abstract: PROBLEM TO BE SOLVED: To provide a heat pipe that is manufactured more easily.SOLUTION: The heat pipe includes: a pipe body 12 having a sealed space 20 inside; and working fluid enclosed in the sealed space 20. The pipe body 12 includes: a heat generating part 14 that is a metal flat plate of which a surface exposes to the external and a rear surface exposes to the sealed space; a heat radiating part 16 that is a metal flat plate of which a surface exposes to the external and a rear surface exposes to the sealed space; and an insulating part 18 that is formed of a material having heat insulating properties and electric insulating properties. The heat generating part 14, the heat radiating part 16, and the electric insulating part 18 are integrally molded by insert molding.
Patent JP-2012119603-A (JP)
Title: Substrate processing apparatus
Inventor: OTAGURO HIROSHI
IPC: B08B3/04
Filed: 2010-12-03
Abstract: PROBLEM TO BE SOLVED: To provide a substrate processing apparatus which reduces variations in processing in a substrate surface and between substrates and improves product performance and production yield.SOLUTION: A substrate processing apparatus includes a tank TK in which a processing substrate 1 is housed, sending mechanisms TB, A sending out a liquid or a gas or the liquid and the gas to the processing tank TK, and discharge means 10, 20, 30, and 40 discharging the liquid or the gas or the liquid and the gas in the tank TK from a position facing a position where the liquid or the gas or the liquid and the gas are sent out to the processing substrate 1 in the tank TK.
Patent JP-2012121174-A (JP)
Title: Image forming apparatus
Inventor: ONISHI KAZUYUKI
IPC: B41J2/44
Filed: 2010-12-06
Abstract: PROBLEM TO BE SOLVED: To certainly prevent misalignment in print start timing, resulting from malfunction due to noise.SOLUTION: An LSU 6 includes three phototransistors 24A, 24B, 24C and a sensor output circuit 23. The phototransistors detect the quantity of light of respective light beams, and are arranged in the scanning direction on the outside of the printing area of a photoreceptor on the scanning start side. A sensor processing circuit 23 creates a pulse signal of fixed width by comparing the output signals from the phototransistors with each other. An image processing part 4 controls the LSU 6 by using the pulse signal as a print start signal when the width of the pulse signal falls within a predetermined range, otherwise by not using the pulse signal as a print start signal.
Patent JP-2012005818-A (JP)
Title: Receptacle for coffee capsule
Inventor: JUNG WOO-YOUNG
IPC: A47J31/02
Filed: 2010-12-07
Abstract: PROBLEM TO BE SOLVED: To provide a receptacle for a coffee capsule capable of housing the coffee capsule having a various structures by improving the structure of a holder part and a grip part for housing the coffee capsule inside thereof.SOLUTION: The receptacle for coffee capsule includes: the holder part constituted of a housing part having a tightly fixed upper part opened to a jet part N of a coffee maker so that a high temperature water from the jet part is jetted inside the coffee capsule and forming an outer peripheral surface of the coffee capsule tightly attached to an inner peripheral wall so as to incorporate the coffee capsule, and a through-hole penetrating a bottom surface of the housing part so as to discharge drinking coffee mixed from the jet part through the coffee capsule; and the grip part supporting and fixing the holder part so that the opened upper part of the holder part is closely connected with the jet part.
Patent JP-2012123149-A (JP)
Title: Optical equipment having blur correction function
Inventor: IDAKA SAYURI
IPC: H04N5/232
Filed: 2010-12-08
Abstract: PROBLEM TO BE SOLVED: To improve blur prevention function by improving resolution of a position detection system for detecting a drive position of a blur prevention unit or a blur detection system.SOLUTION: Provided are: blur detection means for detecting blur; blur prevention means 109 operating to prevent image blur; driving means for driving the blur prevention means based on output from the blur detection means; means 117 for adjusting offset of position detection means and including first position detection means and second position detection means for detecting a drive position of the blur prevention means; and amplification means 112 for amplifying output of the first position detection means. The second position detection means detects a value of the output amplified of the first position detection means, and offset of the second position detection means is adjusted based on the output of the first position detection means.
Patent JP-2012121840-A (JP)
Title: Blood triglyceride level rise inhibitor
Inventor: NAGAMINE RIKA
IPC: A61K36/899
Filed: 2010-12-08
Abstract: PROBLEM TO BE SOLVED: To provide a novel blood triglyceride level rise inhibitor.SOLUTION: The blood triglyceride level rise inhibitor, namely the inhibitor containing a processed product of barley leaves, has an improved effect of inhibiting the rise of blood triglyceride level compared to the conventional blood triglyceride level rise inhibitor containing dietary fibers. The addition of this blood triglyceride level rise inhibitor to beverages, foods, cosmetics and medicines gives the beverages, foods, cosmetics and medicines having excellent effect of inhibiting the rise in blood triglyceride level.
Patent JP-2012129597-A (JP)
Title: Image forming apparatus, method, program, and recording medium
Inventor: DOI TOSHIHIRO
IPC: H04N1/405
Filed: 2010-12-13
Abstract: PROBLEM TO BE SOLVED: To provide an image forming apparatus capable of promoting aggregation of pixels according to image characteristics; for example, image data reproduced with lumps of a small number of pixels such as 1 to 2 pixels or so can be reproduced with lumps of for example 2 to 5, or 4 to 8 pixels and so, and reproduction with density close to original density is made possible.SOLUTION: The image forming apparatus comprises processes of: determining each degree of concentration (Cn) for a target pixel (Dt22) and each pixel (Dt11 to Dt33) of peripheral pixels thereof (135); determining each rank (Rnk) of the target pixel and the peripheral pixels according to the determined degree of concentration (Cn) (140); and allocating a pixel value of each pixel based on the determined rank (Rnk) of each pixel (150).
Patent JP-2011125858-A (JP)
Title: Regenerative apparatus for cooling and washing liquid
Inventor: HOLZMEIER GEORG
IPC: B01D29/11
Filed: 2010-12-16
Abstract: <P>PROBLEM TO BE SOLVED: To provide a regenerative apparatus for a cooling and washing liquid which prevents a worker for treating the regenerative apparatus for the cooling and washing liquid from contacting with the solid matter in the turbid liquid and the regenerated cooling and washing liquid as much as possible.  <P>SOLUTION: The regenerative apparatus (2) which filtrates the turbid liquid (15) to regenerate the same to the pure cooling and washing liquid is provided with a first vessel (20) to conduct the linking operation with a suction device (24) for the turbid liquid (15) and to store the sucked turbid liquid (15), a second vessel (21) which conducts the linking operation with an overpressure generator (32), and a filter element (30) which is arranged within the second vessel (21). In the second vessel (21), the filter element (30) is arranged at the upstream side in the flow direction (33) of the liquid.  <P>COPYRIGHT: (C)2011,JPO&INPIT
Patent JP-2012132732-A (JP)
Title: Instrument device
Inventor: NAKAJIMA TAKESHI
IPC: G01D11/28
Filed: 2010-12-21
Abstract: PROBLEM TO BE SOLVED: To provide an instrument device capable of uniformly illuminating a display board 50.SOLUTION: A display board 50 includes index parts 51. A pointer 40 indicates the index part. Drive means 30 rotates the pointer 40. A light-emitting element 70 emits illumination light which illuminates the display board 50. A circuit board 10 mounts the light-emitting element 70 thereon. A first reflection part 81 reflects the illumination light emitted by the light-emitting element 70. Second reflection parts 91, 92, 93, 94, 95 further reflect the illumination light reflected by the first reflection part 81. The second reflection parts include a plurality of reflection surfaces 92, 93, 94 which have inclination angles gradually different from each other, and which are arranged in a wavelike pattern. The reflection surfaces 92, 93, 94 of the second reflection part 90 are formed at places corresponding to an electrical component 11 provided on the circuit board 10.
Patent JP-2012131355-A (JP)
Title: Headrest storage holder of vehicle seat
Inventor: IGAI TOSHIHISA
IPC: B60N2/30
Filed: 2010-12-21
Abstract: PROBLEM TO BE SOLVED: To solve the problem of being difficult to sufficiently check slipping-out of a headrest, due to only checking the slipping-out by frictional force and locking force (elasticity) of a plate spring.SOLUTION: The headrest storage holder 30 is formed with a belt-like holder body 32 having the base end 32a sewn to a reverse surface covering material 12a' of a seat cushion, extended in the vertical direction and installable with a body of the headrest 16. An insertion hole 32a1' for inserting a stay 16a of the headrest is formed in a holder body adjacently to the base end 32a. A resin buckle arranged on the end of a strap is formed as a connecting means 31, and a strap 31a with a male type piece detachably engaged with/connected to a strap 31b with a female type piece of the resin buckle sewn to the reverse surface covering material of the seat cushion, is sewn to the free end 32b of the holder body. A hook-and-loop fastener 34 is also arranged between the reverse surface covering material of the seat cushion and the holder body 32.
Patent JP-2011057714-A (JP)
Title: Gastric acid secretion inhibiting composition
Inventor: PETTERSSON ANDERS
IPC: A61P1/14
Filed: 2010-12-24
Abstract: <P>PROBLEM TO BE SOLVED: To provide a medicine to quickly and continuously relieve pathological conditions of a patient suffering from disorders relating to gastric acid secretion; and to provide a therapeutic method whereby pathological conditions of the patient suffering from the disorders relating to gastric acid secretion are quickly and continuously relieved.  <P>SOLUTION: The oral pharmaceutical dosage form includes pharmacologically effective amounts of an acid-sensitive proton pump inhibitor and H2 receptor antagonist, together with at least one pharmaceutically acceptable excipient which brings delayed and/or extended release of the inhibitor. The H2 receptor antagonist is contained in the dosage form in a quickly releasable form after administration. The dosage form is suitable for treatment of disorders caused by excessive gastric acid secretion, providing a proper combination of quick appearance of the effects and long duration time thereof. The invention also relates to the production method of the dosage form and the therapeutic method for relieving pathological conditions relating to gastric acid secretion.  <P>COPYRIGHT: (C)2011,JPO&INPIT
Patent JP-2011092202-A (JP)
Title: Neutralizing human anti-igfr antibody
Inventor: WANG YAN
IPC: A61K39/395
Filed: 2010-12-24
Abstract: <P>PROBLEM TO BE SOLVED: To provide fully human anti-human IGFR1 monoclonal antibodies which are useful for treating or preventing diseases which are mediated by IGFR1 (e.g., malignancy).  <P>SOLUTION: A binding composition is provided which specifically binds to human IGFR1 comprising a member selected from the group consisting of a light chain amino acid sequence including CDR-L1, CDR-L2, and CDR-L3 and a heavy chain amino acid sequence including CDR-H1, CDR-H2, and CDR-H3. The invention includes fully human monoclonal antibodies specific for human insulin-like growth factor receptor 1 (IGFR1). The antibodies are useful for treating or preventing cancers in a subject's body. The invention also includes methods of using the antibodies and methods of producing the antibodies.  <P>COPYRIGHT: (C)2011,JPO&INPIT
Patent JP-2012137018-A (JP)
Title: Method of controlling operation of internal combustion engine
Inventor: TERAMURA KEIJI
IPC: F02D29/02
Filed: 2010-12-27
Abstract: PROBLEM TO BE SOLVED: To provide a method of operating an internal combustion engine capable of increasing opportunities in the case where idle stop is executed although the engine is in an operating state before warming-up is completed.SOLUTION: In the method of controlling the operation of an internal combustion engine such that the operation of an internal combustion engine is automatically shutdown by allowing the system to execute an engine stop control if a predetermined engine stop condition is established while an internal combustion engine mounted in a vehicle having an automatic transmission is being operated, and the internal combustion engine is restarted by allowing the system to restart the internal combustion engine if a predetermined engine restart condition is established after the automatic shutdown, the temperature of the internal combustion engine is measured, and the temperature of the automatic transmission connected to the internal combustion engine as well, so that an idle stop allowable temperature that allows the system to stop the idling is set up if the temperature of the engine is a predetermined value or higher, or the set idling stop allowable temperature is lowered if the temperature of the automatic transmission is a predetermined value or less.
Patent JP-2012135507-A (JP)
Title: Game machine unit
Inventor: KANAZAWA HIDEHIKO
IPC: A63F7/02
Filed: 2010-12-27
Abstract: PROBLEM TO BE SOLVED: To provide a distribution mechanism for distributing game balls with a simple configuration.SOLUTION: In a Pachinko game machine unit, a plurality of game balls are sealed into an internal space to prevent contact from the outside. The Pachinko game machine unit includes: a circulation ball guide member 45 for guiding game balls toward a Pachinko game machine for performing a game by circulating the plurality of sealed game balls; a ball guide member 46 for ball putting-out feeling (or ball guide member 47 for ball storage feeling) for guiding game balls toward a ball putting-out feeling performance portion (or ball storage feeling performance portion), namely a configuration portion differing from that of the Pachinko game machine; a main stock 41 for storing game balls sealed into the unit; a distribution nozzle 44 that includes a discharge port 44ba for discharging game balls and guides the game balls received from the main stock 41 to the discharge port 44ba; and a moving portion (rotary motor) for moving the discharge port 44ba of the distribution nozzle 44 to the circulation ball guide member 45 and the guide member 46 for ball putting-out feeling (ball guide member 47 for ball storage feeling) without moving the main stock 41.
Patent JP-2010525041-A (JP)
Title: ジメチルエーテルのカルボニル化方法
IPC: C07C53/08
Filed: 2008-04-23
Abstract: 実質的な無水条件下で、銅及び／又は銀並びにアルミニウムに対して０．０５から１０モル％の白金を含有するモルデナイト触媒の存在下に、ジメチルエーテル供給物を一酸化炭素とカルボニル化させることによってなされる酢酸メチルの生成。 【選択図】図１
Patent JP-2010526363-A (JP)
Title: 抽象記述から照明環境をレンダリングする可能性を自動検証する方法およびシステム
IPC: G06T11/00
Filed: 2008-04-28
Abstract: 本発明は、照明環境を、抽象記述から、たとえば個別の照明インフラストラクチャーや部屋のレイアウトとは独立なXML（Extensible  Markup  Language）で指定される照明環境から、レンダリングすることが可能かどうかを自動検証することに関する。本発明の基本的発想は、照明インフラストラクチャーのアドレッシング可能な各照明ユニットについて、いうところの照明インフラストラクチャー機能を生成するというものである。照明インフラストラクチャー機能は、効果を一般的に記述し、最大の可能な効果を測定し、効果を目標環境の意味論的領域中の位置に関係させる。これは、照明インフラストラクチャーにおいて抽象記述からの照明環境をレンダリングする可能性を、照明環境デザイン工程の早い段階で、自動的に検証することを許容する。
Patent JP-2010527039-A (JP)
Title: リアルタイムにビデオホログラムを計算する解析的方法
IPC: G03H1/22
Filed: 2008-05-16
Abstract: 本発明は、少なくとも１つの光変調手段（ＳＬＭ）を有するホログラフィック再生装置（ＨＡＥ）に対してビデオホログラムを計算する解析的方法に関する。ここで、オブジェクト点（ＯＰ）に分割されるシーン（３Ｄ−Ｓ）は、ホログラム全体（ＨΣＳＬＭ）として符号化され、ビデオホログラムの再構成の１周期間隔内で位置が特定される可視領域（ＶＲ）から再構成として見られる。可視領域（ＶＲ）は、再構成されるシーン（３Ｄ−Ｓ）の各オブジェクト点（ＯＰ）と共にサブホログラム（ＳＨ）を規定し、ホログラム全体（ＨΣ ＳＬＭ ）は、サブホログラム（ＳＨ）の重畳により生成される。ここで、サブホログラム（ＳＨ）の複素ホログラム値は、光変調器手段の変調器領域（ＭＲ）において形成される結像素子（ＯＳ）の透過率関数又は変調関数を計算及び評価することにより変調器領域（ＭＲ）において再構成される各オブジェクト点（ＯＰ）の波面から決定される。再構成されるオブジェクト点（ＯＰ）の位置は、結像素子の焦点において特定される。
Patent JP-2010528580-A (JP)
IPC: H02M3/28
Filed: 2007-05-30
Abstract: The present application concerns a multi-output synchronous Flyback converter. The Flyback converter comprises a primary controlled switch (24), a driver circuit (26), a transformer and a feedback circuit (27). The secondary side of the converter comprises a plurality of secondary windings (29, 30, 31), a plurality of controlled rectifiers (32, 33, 34), and a control circuit (35) adapted to sense the current and/or the voltage related to one of said controlled rectifiers and to generate a control signal for all said controlled rectifiers.
Patent JP-2010531195-A (JP)
Title: パンティライナー
IPC: A61F13/00
Filed: 2008-07-02
Abstract: 不織布トップシート（２６）と、不織布バックシート（２２）と、前記トップシートと前記バックシートとの間に配置された吸収性コア（２０）とを有するパンティライナーである。液体不透過性バリア層（２４）が、吸収性コアとバックシートとの間に配置される。液体不透過性バリアは、トップシート又はバックシートの少なくとも一方を通じて視認可能な着色パターン（３４）を有する。パンティライナーの液体不透過性バリアの外側のエリアは、パンティライナーの全表面の少なくとも２０％を占める通気性ゾーン（３２）である。
Patent JP-2010533399-A (JP)
Title: 最善のｄｈｃｐサーバを見出すためのルータの動的な構成
IPC: H04L12/56
Filed: 2008-07-04
Abstract: 【課題】ユーザが選んだ基準に基いて、利用可能なＤＨＣＰサーバのリストの中からドメイン・ホスト構成プロトコル（ＤＨＣＰ）サーバを割当てる方法を提供する。 【解決手段】ネットワーク・ルータが、ネットワークに連結されたコンピュータまたは「クライアント」からＩＰアドレスの要求を受信したとき、その要求は、該クライアントおよび利用可能なＤＨＣＰサーバの両方に関する情報について分析される。この分析は、特定のＤＨＣＰサーバに対する過去の要求の回数および該サーバのＩＰアドレスを要求しているコンピュータへの近接度など、いくつかのファクタに基いて行うことができる。該ルータが、ある特定のＩＰアドレス要求に対する適切なＤＨＣＰサーバを選定したならば、クライアントの要求はそのＤＨＣＰサーバに転送される。このプロセスは、要求クライアントおよび選定されたＤＨＣＰサーバの両方に対して完全に透過的である。 【選択図】図１
Patent JP-2011502368-A (JP)
Title: 通信システム
IPC: H04W40/24
Filed: 2008-10-27
Abstract: 移動通信システムが提案される。該システムでは、移動通信デバイスが隣接セルから受信された信号に対する信号測定を実行するように構成される。これらの信号測定が実行される帯域幅が、隣接セルの帯域幅に基づいて求められ、サービス提供する基地局によって移動通信デバイスに通知される。
Patent JP-2010533583-A (JP)
Title: 材料を基板に塗布するための方法および器具
IPC: B05D7/24
Filed: 2008-07-16
Abstract: 本発明は、ドロップレット印刷法を用いて材料を基板に塗布する方法であって、キャリアガスと、材料の懸濁液の液滴または材料のプレカーサー溶液の液滴または材料自体のプレカーサーの液滴とを含む気流が基板の方向に放出され、それにより気流中の液滴は最初は定常流に維持され、その後は液滴が基板に接触するまで収束流に維持される、方法を提供する。本発明はさらに、方法を実施する器具も提供する。 【選択図】図１
Patent JP-2010534334-A (JP)
Title: 室内環境地図の作成方法及びシステム
IPC: G01C15/00
Filed: 2008-07-11
Abstract: 室内環境地図を作成する方法は移動体が移動するとき、エンコーダを用いてホイールの回転を検出することで、エンコードされた位置情報を獲得して前記エンコードされた位置情報に基づいて前記移動体の位置を予測する段階と、距離測定センサを用いて前記移動体から周囲環境内に存在する物体までの測定距離を獲得する段階と、前記移動体の移動位置を予測する段階と、前記移動体の予測位置で前記移動体から前記物体までの距離を推定する段階と、前記推定距離が前記測定距離とマッチするかを判断する段階と、前記推定位置が前記測定位置とマッチすれば、前記移動体の予測位置を補正する段階と、前記補正位置及び前記測定距離を用いて前記室内環境地図を作成する段階とを含む。
Patent JP-2010537097-A (JP)
IPC: F04D29/22
Filed: 2008-08-18
Abstract: The pump rotor (1) comprises a first blade (3), wherein the first blade (3) comprises a first helical-gear blade part (3a) and, adjoining the latter, a first centrifugal-wheel blade part (3b), and said pump rotor (1) comprises a hub (2) with a rotational axis (D), wherein the centrifugal-wheel blade part (3b) is fixedly connected to the hub (2), wherein at least one second blade (4) is provided which comprises a second helical-gear blade part (4a) and, adjoining the latter, a second centrifugal-wheel blade part (4b), wherein the first and the second blades (3,4) have in each case one outer edge (3c,4c), wherein a connecting means (5) connects the first and second blades (3,4) to one another in the region of the outer edge (3c,4c), and wherein the second centrifugal-wheel blade part (4b) is arranged so as to run relative to the hub (2) in such a way that an opening (6) which runs continuously in the rotational direction (D1) is formed between said second centrifugal-wheel blade part (4b) and hub (2), since the second centrifugal-wheel blade part (4b) is not directly connected to the hub (2).