baber/WOPTO huggingface dataset:
Patent WO-2020175032-A1 (WO)
Inventor: HIGASHIYAMA YUZO
IPC: A61M16/16
Filed: 2020-02-04
Abstract: This respiratory blowing device includes: a first unit including a first housing (110); and a second unit including a second housing (210), wherein the first housing (110) includes a first outlet port (122), and the second housing (210) includes a connection port (221) detachably connected to the first outlet port (122) and a second outlet port (222). The second outlet port (222) has, on the outer circumferential surface thereof, a first outer connection part (R1) to which a hose is externally fitted in a detachable manner, and the first outlet port (122) has, on the outer circumferential surface thereof, a second outer connection part (R2) having the same outer shape as the first outer connection part (R1) and has, on the inner circumferential surface thereof, an inner connection part (R3) to which the connection port (221) is internally fitted in a detachable manner.
Patent WO-2020202839-A1 (WO)
Title: Anti il-6 receptor antibody-containing inhibitor for inhibiting deterioration of bbb function
Inventor: TAKESHITA YUKIO
IPC: C12N15/13
Filed: 2020-02-17
Abstract: Provided are: an inhibitor for inhibiting the deterioration of the blood brain barrier (BBB) function; an inhibitor for inhibiting the breakage of a tight junction of the blood brain barrier; an inhibitor for inhibiting the CNS-invasion of leukocytes; an inhibitor for inhibiting the CNS-permeation of IgG into the blood of a patient; and a therapeutic agent which is for a neuromyelitis optica spectrum disorder, neuro-Behcet's disease, neurosarcoidosis, central nerves lupus (neuropsychiatric lupus), autoimmune encephalitis, or Vogt-Koyanagi-Harada disease and which inhibits the deterioration of the blood brain barrier function and/or recovers the deteriorated blood brain barrier function, and each of the aforementioned contains an antibody comprising a heavy-chain variable region including CDR1 having the sequence of SEQ ID NO: 1, CDR2 having the sequence of SEQ ID NO: 2, and CDR3 having the sequence of SEQ ID NO: 3, and a light-chain variable region including CDR1 having the sequence of SEQ ID NO: 4, CDR2 having the sequence of SEQ ID NO: 5, and CDR3 having the sequence of SEQ ID NO: 6.
Patent WO-2020189141-A1 (WO)
Title: Pipe material for air-conditioning drain
Inventor: NAKAMURA HIRONOBU
IPC: B32B1/08
Filed: 2020-02-18
Abstract: Provided is a pipe material characterized by being composed of a multilayer tube having an inner layer, a foamed layer, and an outer layer, wherein the inner layer, the foamed layer, and the outer layer each include a thermoplastic resin, and the outer diameter (D), the inner diameter (U), the thickness (To) of the outer layer, the thickness (Tc) of the foamed layer, and the thickness (Ti) of the inner layer satisfy the following relationships (1) to (4)　(1): 8≦D/To≦17, (2): 10≦D/Tc≦16, (3): 0.5 mm≦Ti≦4.0 mm, (4): 0.55≦U/D≦0.75
Patent WO-2020202871-A1 (WO)
Title: Physical quantity measurement device
Inventor: ENOMOTO TAKASHI
IPC: G01F1/684
Filed: 2020-02-20
Abstract: A sensor recess (61) is provided in a sensor rear surface (22b). A membrane part (62) forms a sensor recess bottom surface (501) that is the bottom surface of the sensor recess and has detection elements (71-74) provided thereon. A sensor support part (51) comprises a rear support part (522), support recess (530), support hole (540), and intra-support-recess wall surface (532). The rear support part extends along the sensor rear surface and covers a sensor recess opening (503) that is the opening of the sensor recess. The support recess is provided in a support rear surface (55f) that is the surface of the rear support part on the reverse side from a physical quantity sensor. The support hole extends from a support recess bottom (531) that is the bottom surface of the support recess toward the sensor recess, passes through the rear support part, and reaches the sensor recess opening. The intra-support-recess wall surface composes the inner surface of the support recess together with the support recess bottom, extends from the support recess bottom toward the reverse side from the physical quantity sensor, and is inclined in relation to a center line (CL52) of the support hole so as to face toward the reverse side from the physical quantity sensor.
Patent WO-2020217731-A1 (WO)
Inventor: SOFUE Ayano
IPC: H01G11/06
Filed: 2020-03-05
Abstract: Provided are: a binder composition which is for an electrode and from which an electrode exhibiting high durability can be obtained even when an active material with a large volume change is used; an electrode which is for a power storage device and is manufactured using the same; and a power storage device including the electrode for a power storage device. This binder composition for an electrode is characterized by containing: (A) at least one polymer selected from the group consisting of a fluorine-based polymer, a butadiene-based polymer, and a thermoplastic elastomer; (B) a fibrous nanocarbon material having an average fiber diameter of 0.5-20 nm and a fiber length of 0.5 μm to 1 mm; (C) a cellulose material; (D) a nanocellulose fiber; and (E) water, wherein the mass ratio of (A) to (B) satisfies (A)/(B)=60/40 to 98/2.
Patent WO-2020203042-A1 (WO)
Inventor: ASO KEIGO
IPC: C08F220/56
Filed: 2020-03-06
Abstract: L'invention concerne : un liant qui est destiné à une batterie secondaire à semi-conducteur et qui peut inhiber une réduction de la conductivité ionique et qui présente d'excellentes propriétés de liaison et une excellente résistance à l'oxydation, et peut être utilisé pour obtenir de bonnes caractéristiques de durée de vie à une tension élevée ; et une composition de liant qui est destinée à une batterie secondaire à semi-conducteur et qui contient le liant. Ce liant pour batterie secondaire à semi-conducteur selon la présente invention est caractérisé en ce qu'il contient un polymère (A) qui a une unité de répétition (a1) dérivée d'un ester d'acide carboxylique insaturé (à l'exclusion d'esters d'acide carboxylique insaturé ayant un groupe hydroxy) et une unité de répétition (a2) dérivée d'un composé ayant un groupe amino tertiaire, qui a une masse moléculaire moyenne en poids (Mw) de 250000 à 3000000, et qui a un pic endothermique observé à -10 °C ou moins lorsqu'une calorimétrie différentielle à balayage (DSC) est effectuée conformément à JIS K7121.
Patent WO-2021181461-A1 (WO)
Title: Cnc machining device
Inventor: SUZUKI SATOSHI
IPC: B23Q17/24
Filed: 2020-03-09
Abstract: Provided is a CNC machining device that can more accurately measure the shape of an object.　This CNC machining device 1 comprises a tool magazine 20, a spindle 26, an automatic tool exchange device, a CNC controller 32, a sensor head 10 that can generate measurement data corresponding to the distance to the surface of the object, and a personal computer 40. The sensor head 10 generates measurement data (X, Z) at fixed intervals. The CNC controller 32 generates position coordinate data (x, y, z, xθ, yθ, zθ) at fixed intervals. The sensor head 10 transmits the measurement data to the personal computer 40 through first radio communication RC1. The sensor head 10 transmits, to the CNC controller 32, a synchronization signal for synchronizing the measurement data and the position coordinate data through second radio communication RC2.
Patent WO-2020203153-A1 (WO)
Inventor: YOKOTA YUSUKE
IPC: G01R1/073
Filed: 2020-03-12
Abstract: The present invention provides a contact terminal comprising an electroconductive cylindrical body extending in the axial direction of the contact terminal, a rod-shaped first conductor which is electroconductive and which can contact an inspection object, and rod-shaped second conductor which is electroconductive, the first conductor having a first protruding part protruding on one axial side from the cylindrical body, and a first insertion part which is provided to the end of the first conductor on the other axial side thereof and which is disposed inside the cylindrical body, the second conductor having a second insertion part disposed inside the cylindrical body, the cylindrical body having a spring part formed in a helical shape along the circumferential surface of the cylindrical body, and a first barrel part connected to one axial side of the spring part, the first insertion part being fixed to the first barrel part, and an end-side notch extending along the axial direction from the end surface on one axial side of the cylindrical body being provided in the circumferential surface of the first barrel part.
Patent WO-2021199249-A1 (WO)
Title: 光通信ネットワークシステム、光加入者線終端装置及び光通信方法
Inventor: ABE TAKUYA
IPC: H04L12/44
Filed: 2020-03-31
Abstract: 本開示は、ＯＮＵと端末装置の間にネットワーク装置が接続されている場合であっても、ＯＮＵにおいて端末装置のＩＤ情報を取得可能にし、これによってＯＮＵとＯＬＴ間との論理パスを生成可能にすることを目的とする。　本開示は、端末装置及びＰＯＮシステムがネットワーク装置を介して接続されている光通信ネットワークシステムであって、前記ＰＯＮシステムは、光伝送線路を用いて接続されている光加入者線端局装置及び光加入者線終端装置を備え、前記光加入者線終端装置は、前記ネットワーク装置との間でトンネルを構築し、前記ネットワーク装置に接続されている前記端末装置のＩＤ情報を、前記トンネル経由で前記端末装置から取得し、取得したＩＤ情報を用いて、前記光加入者線端局装置との論理パスを前記光伝送線路上に生成する、光通信ネットワークシステムである。
Patent WO-2020204051-A1 (WO)
Inventor: WAKUI TAKASHI
IPC: G06T7/00
Filed: 2020-03-31
Abstract: This image processing device is provided with: an extraction unit which, in an annotation image given as learning data to a machine learning model for implementing semantic segmentation involving differentiating multiple classes in the image by pixel unit, extracts, from multiple designated regions designated by class labels, a complex region which is at least part of the designated regions and which has a relatively complex outline; and a setting unit which sets an additional label for the complex region apart from the original labels originally designated in the annotation image.
Patent WO-2021210176-A1 (WO)
Inventor: TAKEI KENTA
IPC: C09C3/12
Filed: 2020-04-17
Abstract: 分散性が高い金属酸化物粒子材料である改質金属酸化物粒子材料及びその製造方法を提供することを解決すべき課題とする。予め金属酸化物粒子材料の間にフェニル基を有するケイ素含有化合物からなる改質材料を介在させた改質金属酸化物粒子材料を形成し、その状態で樹脂材料や有機溶剤中に分散させることで樹脂材料や有機溶剤が金属酸化物粒子材料の間に侵入し易くなって分散性が向上できることを見出した。本発明の改質金属酸化物粒子材料は、フェニル基以外の官能基を表面に有する金属酸化物粒子材料と、フェニル基を有するケイ素含有化合物からなり、前記金属酸化物粒子材料の表面に付着する改質材料とを有する。
Patent WO-2020218268-A1 (WO)
Inventor: MIYAKOSHI RYO
IPC: B60H1/22
Filed: 2020-04-21
Abstract: [Problem] To provide a vehicle control system with which it is possible to suppress, as far as possible, degradation due to charging and discharging of a battery when the battery can be charged by means of an external power supply. [Solution] A vehicle control system VC controls a vehicle in which a battery 55 can be charged by means of an external power supply (rapid charger 79). The vehicle control system is provided with a vehicle air conditioning device 1 for air conditioning a vehicle interior, and a control unit 30 for controlling the operation of the vehicle air conditioning device and charging and discharging of the battery, wherein the control unit includes a power feed switching unit 73 for switching between feeding power to the vehicle air conditioning device from the battery or feeding power to the vehicle air conditioning device from the external power supply, and in a state in which power can be fed to the vehicle from the external power supply, the vehicle interior is air conditioned by feeding power to the vehicle air conditioning device from the external power supply by means of the power feed switching unit.
Patent WO-2020246163-A1 (WO)
Inventor: SANADA Shohei
IPC: D21H27/40
Filed: 2020-04-21
Abstract: A corrugated cardboard material (1) is designed such that a rectangle sheet (2) in a sequential double-sided corrugated cardboard is folded back in a second direction MD at each fold F linearly extending along a first direction CD and stacked in a third direction TD. In the corrugated cardboard material (1), a liner constituting the double-sided corrugated cardboard has a basis weight of 110 [g/m 2 ] or more and 290 [g/m 2 ] or less. The liner has a pulp fiber length of 0.55 [mm] or more and 1.60 [mm] or less. A fiber orientation ratio representing the ratio of the orientation of pulp fibers of the liner in the second direction MD to the orientation thereof in the first direction CD is 1.0 or more and 2.0 or less. A fiber length ratio representing the ratio of a pulp fiber length of a liner base paper to a pulp fiber length of a corrugating medium constituting the double-sided corrugated cardboard is 0.65 or more and 1.90 or less.
Patent WO-2021220344-A1 (WO)
Title: エレベーターの３次元データ取得装置、３次元データ取得システムおよび３次元データ取得方法
Inventor: IWAMA HARUYUKI
IPC: B66B7/00
Filed: 2020-04-27
Abstract: 昇降路の内部の３次元点群データの計測精度を向上することができるエレベーターの３次元データ取得装置、３次元データ取得システムおよび３次元データ取得方法を提供する。エレベーターの３次元データ取得装置は、外郭をなす筐体と、水平投影面上においてエレベーターの昇降路の複数の側壁のそれぞれに対して正対して前記筐体に設けられ、３次元点群データを取得する複数の３次元距離画像センサと、を備えた。当該構成によれば、昇降路の内部の３次元点群データの計測精度を向上することができる。
Patent WO-2020246193-A1 (WO)
Title: 車載機器及び車載機器の取り付け構造
Inventor: ONO FUMIAKI
IPC: H04N5/222
Filed: 2020-05-01
Abstract: 車載機器（９１）は、本体部（１）と、本体部（１）から突出し、車両に備えられた内面（８１ａ）が凹面となる湾曲形状のガラス部材（８１）の内面（８１ａ）に取り付けるベース（３）を有する支持部（２）と、ベース（３）に貼着された両面テープ（５）と、を備える。両面テープ（５）は、ベース（３）を内面（８１ａ）に取り付けた際の上方となる上縁（５ａ）に開口して下方に切り込まれた第１切込み部（５２）及び下方となる下縁（５ｂ）に開口し上方に向け切り込まれた第２切込み部（５１）を有すると共に、第１切込み部（５２）及び前記第２切込み部（５１）それぞれの上縁及び下縁の開口部に、第１切込み部（５２）及び第２切込み部（５１）それぞれの幅よりも広い幅で切り込まれたガイド部（５１ｃ）を有する。
Patent WO-2021002101-A1 (WO)
Inventor: TANAKA NOBUHIRA
IPC: F04B45/047
Filed: 2020-05-14
Abstract: A fluid control device (10) is provided with a first main plate (20), a piezoelectric element (30), a second main plate (40), a side plate (50), a first film (61), and a second film (62). A pump chamber (100) of the fluid control device (10) is realized by means of a space enclosed by the first main plate (20), the second main plate (40), and the side plate (50). A first film (61) is disposed on the pump chamber (100) side of the first main plate (20), and is disposed on a first main surface (211) in such a way as to have a movable portion in which one edge is a movable edge. A second film (62) is disposed on the pump chamber (100) side of the second main plate (40), and is disposed on a third main surface (401) in such a way as to have a movable portion in which one edge is a movable edge. The first film (61) and the second film (62) are disposed between a first opening (230) of the first main plate (20) and a second opening (400) of the second main plate (40).
Patent WO-2020230836-A1 (WO)
Title: 成形材料用樹脂組成物、成形体、及び成形材料用樹脂組成物の製造方法
Inventor: YOKOI HIROAKI
IPC: C08K7/02
Filed: 2020-05-14
Abstract: 植物繊維（Ａ）と、熱可塑性樹脂（Ｂ）と、カルボキシ基と反応性を有する化合物（Ｃ）と、を含有する、成形材料用樹脂組成物。
Patent WO-2021234943-A1 (WO)
Title: Control device and control method
Inventor: HASHIKAWA TAKAHIRO
IPC: F24F11/64
Filed: 2020-05-22
Abstract: A first power consumption amount estimation unit (122) estimates, as a first power consumption amount, the power consumption amount occurring in a first operation mode in which the operation of an air conditioner is stopped at the timing at which the room in which the air conditioner is installed ceases to be used, and the operation of the air conditioner is restarted so that the temperature of the room reaches a set temperature at the timing at which the room is used. A second power consumption amount estimation unit (123) estimates, as a second power consumption amount, the power consumption amount occurring in a second operation mode in which the operation of the air conditioner is maintained even while the room is not being used. A determining unit (124) compares the first power consumption amount and the second power consumption amount and determines whether to stop or maintain the operation of the air conditioner at the timing at which the room ceases to be used.
Patent WO-2020261889-A1 (WO)
Inventor: UMEKI RYO
IPC: B29B13/04
Filed: 2020-06-02
Abstract: Provided is a pellet manufacturing method comprising: a step in which a strand comprising a composition including a thermoplastic resin and a reinforcing material is extruded from a discharge opening of a die; a step in which the strand is drawn into water in a water tank and cooled; and a step in which the cooled strand is cut to obtain a pellet. At least one first guide roller is provided in the water tank to guide the strand in the water tank. An angle formed by the strand, before and after the first guide roller positioned most upstream, is 90° or more and less than 180°. The ratio of the diameter of the pellet relative to the diameter of the discharge opening (pellet diameter/discharge opening diameter) is 0.45-0.80.
Patent WO-2021015161-A1 (WO)
Title: Endoglucanase and use thereof
Inventor: SEMBA HIRONORI
IPC: C12P19/14
Filed: 2020-07-20
Abstract: Provided is endoglucanase having excellent heat resistance.　This endoglucanase is characterized by the following: (A) a polypeptide has at least 80% amino acid identity with the amino acid sequence represented by SEQ ID NO: 1; (B) the molecular weight of the polypeptide portion is approximately 31 kDa or greater; and (C) the endoglucanase has a sugar chain, and the molecular weight as determined by SDS-PAGE is approximately 39 kDa or greater.
Patent WO-2021015220-A1 (WO)
Title: Method for producing cyclic disulfonic acid ester compound
Inventor: BANDO SEIJI
IPC: C07D327/00
Filed: 2020-07-22
Abstract: Provided is a novel production method capable of easily producing a cyclic disulfonic acid ester compound. This method for producing a cyclic disulfonic acid ester compound comprises reacting a specific sulfonic acid compound and a specific sulfuric acid ester compound.
Patent WO-2021039700-A1 (WO)
Title: Conveyance apparatus for work line and robot system equipped with the same
Inventor: NARIAI HITOSHI
IPC: B25J13/00
Filed: 2020-08-24
Abstract: The present invention provides a conveyance apparatus for a work line that can improve the degree of freedom of a workpiece conveying position with respect to a stage as compared with prior art, and a robot system equipped with the conveyance apparatus for a work line. A conveyance apparatus for a work line comprises: a plurality of pairs of shuttle bars that support a workpiece on a workpiece-by-workpiece basis, extend in a conveyance direction and are arranged side by side in the conveyance direction; and a plurality of drive devices configured to move a pair of shuttle bars forward and backward in the conveyance direction on a shuttle-bar-pair basis and move a pair of shuttle bars to stages which are arranged side by side in the conveyance direction and at which predetermined work is performed. One and the other of shuttle bars adjacent to each other in the conveyance direction are disposed spaced apart from each other.
Patent WO-2022049779-A1 (WO)
Inventor: IWAKIRI KENICHIRO
IPC: F04D29/42
Filed: 2020-09-07
Abstract: This compressor housing, in which an intake port side in the axial direction of a centrifugal compressor is defined as the front side, and the side opposite to the intake port side in the axial direction is defined as the rear side, comprises: a shroud surface including a surface facing a distal end of an impeller blade of an impeller with a predetermined gap therebetween; a front-side inner circumferential surface which is formed on the front side in the axial direction of the shroud surface, and positioned outward from a front end of the shroud surface in the radial direction; and a plurality of grooves formed in the front-side inner circumferential surface with gaps therebetween in the circumferential direction, wherein each of the plurality of grooves includes an inclined portion, the depth of which gradually increases toward a rotation direction of the impeller, and a step portion, which is formed on a downstream end in the rotation direction of the inclined portion.
Patent WO-2021060555-A1 (WO)
Inventor: YOSHIZAWA HIROTOSHI
IPC: G02B5/00
Filed: 2020-09-28
Abstract: Provided are an image exposure device, an image exposure method, and a program, the image exposure device being provided with: an image display device; a supporting unit which supports an exposure surface of a photosensitive recording medium, in which an image displayed on the image display device is recorded, in order to face the image display device; a louver film which is provided between the image display device and the support unit, and limits an angle of light emitted from the image display device; an image generation unit which generates a display image that has degraded image quality from that of an input image, by intensifying a concentration difference in a high-frequency component of the color input image; and a control unit which performs a control to generate an R component image, a G component image, and a B component image from the display image, sequentially display each of the R component image, the G component image, and the B component image in the predetermined order on the image display device, and sequentially expose the photosensitive recording medium.
Patent WO-2021095490-A1 (WO)
Title: Optical fiber connection component and optical fiber connection structure
Inventor: NAKANISHI TETSUYA
IPC: G02B6/36
Filed: 2020-10-30
Abstract: An optical fiber connection component (1) is provided with: a glass plate (21) that has a plurality of first through-holes (25); a resin ferule (31) that has a plurality of second through-holes (38) respectively coaxial to the first through-holes (25) and that is fixed to the glass plate (21); and a plurality of optical fibers (10) that each include a glass fiber (11) and a cover resin (12) covering the glass fiber (11). The glass fiber (11) exposed from a leading end of each of the optical fibers is held in a corresponding one of the first through-holes (25) and a corresponding one of the second through-holes (38). The bending elastic modulus of the material forming the resin ferule (31) is 5 GPa or more at 200℃.
Patent WO-2022091287-A1 (WO)
Inventor: MASAKI MOTOKI
IPC: D04H1/02
Filed: 2020-10-29
Abstract: La présente invention comprend : des masses fibreuses (2) dans lesquelles une ou plusieurs fibres (6) sont enchevêtrées pour former une masse et qui présentent des premiers espaces (8) à l'intérieur de la masse et des premières particules de résine (3) piégées par les premiers espaces (8) ; et des secondes particules de résine (4) qui sont disposées dans des seconds espaces (9) formés entre une pluralité de masses fibreuses (2), et qui ont une taille de particule plus grande que celle de la première particule de résine (3). Ainsi, il est possible de créer un matériau absorbant acoustique (1) présentant d'excellentes propriétés d'absorption acoustique aussi bien dans une plage de hautes fréquences que dans une plage de basses fréquences, les propriétés d'absorption acoustique dans la plage de hautes fréquences étant améliorées par les premières particules de résine (3) piégées dans les premiers espaces (8), et les propriétés d'absorption acoustique dans la plage de basses fréquences étant améliorées par les secondes particules de résine (4) disposées dans les seconds espaces (9).
Patent WO-2021106634-A1 (WO)
Title: ガスバリア性フィルムの製造方法
Inventor: OZEKI Miho
IPC: C23C16/50
Filed: 2020-11-13
Abstract: ガスバリア性及び無機薄膜層表面の濡れ性に優れたガスバリア性フィルムの製造方法を提供する。　プラズマ化学気相成長法を用いて、基材と、該基材の少なくとも一方の面に形成された１層以上の無機薄膜層とを含むガスバリア性フィルムを製造する方法であって、該方法は、基材を一対の成膜ロール上に配置し、該一対の成膜ロール間に、酸素ガスを含む反応ガスと原料ガスとを供給し、該ロール間に発生させるプラズマ放電により、基材の少なくとも一方の側に無機薄膜層を形成する工程を含み、該工程の無機薄膜層形成時において、無機薄膜層の成膜部におけるプラズマ発光スペクトルを測定した際の、６５７ｎｍ付近のピーク強度Ｉａに対する５５９ｎｍ付近のピーク強度Ｉｂの強度比（Ｉｂ／Ｉａ）の経時変化における最大値と最小値との差を０．２５以下に制御する、方法。
Patent WO-2021124795-A1 (WO)
Title: 脳波検出用電極及び脳波検出システム
Inventor: KITAZOE KATSUMA
IPC: A61B5/256
Filed: 2020-11-20
Abstract: 脳波検出用電極（１０）は、人間の頭部の形状に追随して装着されるゴム状の弾性体のバンド部材（１１）と、バンド部材（１１）の一面に、バンド部材（１１）と一体に設けられた、複数の弾性体の突起部（１２）と、を有し、突起部（１２）の少なくとも先端部が、導電部材からなる電極（１３）を構成している。
Patent WO-2022113217-A1 (WO)
Inventor: ASANO RYUTARO
IPC: F04D29/30
Filed: 2020-11-25
Abstract: 本発明のターボファンは、後退羽根各々が、前縁が後縁より回転方向前方に位置し、前縁と主板との接合点を第１の点とし、前縁とシュラウドの最外周部を通る回転軸と垂直な仮想の平面との交点を第２の点とした場合、前縁を回転軸垂直平面に投影した第１の曲線（Ｌ２１）が、回転軸の軸方向上面視で、第１の点と第２の点を通る仮想直線が横軸で、回転方向側正の座標系に対し、第１変曲点を有し、第１の曲線は、第１変曲点より第１の点に近い部分で反回転方向に凸の部分と、第１変曲点より第２の点に近い部分で回転方向に凸の部分とを有し、後縁が回転軸方向上面視で、回転軸が中心の円弧に沿い、後縁を回転軸と同軸上の円筒面上に投影した第３の曲線が、回転方向に凸であり、第３の曲線とシュラウドとの接合点は、第３の曲線と主板との接合点よりも、回転方向の後方に位置する。これにより、吸込効率低下、及び、羽根出口速度分布の偏りを抑制する。