baber/WOPTO huggingface dataset:
Patent JP-2023134269-A (JP)
Title: Work support device, work support method and work support program
Inventor: WADA HIROTAKA
IPC: G06Q50/04
Filed: 2022-03-14
Abstract: To present the model movement suitable for a worker.SOLUTION: A work support device includes: a work movement information acquisition part which acquires the work movement information on the work movement when the worker performs the work; a retrieval part for retrieving the model movement information corresponding to the work movement from the model movement information database in which the model movement information on the model movement to be a model of the work is recorded; and a presentation part for presenting the retrieved model movement information.SELECTED DRAWING: Figure 1
Patent JP-2023134283-A (JP)
Title: Hot module of fuel cell system
Inventor: OSAWA TOMOYA
IPC: H01M8/0606
Filed: 2022-03-14
Abstract: To provide a hot module of a fuel cell system capable of manufacturing a heat exchanger used for preheating the cathode air and raw fuel gas with an inexpensive material.SOLUTION: A hot module of fuel cell system includes: a reformer 2 of a double cylinder structure having a catalyst filling layer 23 between an outer cylinder 21 and an inner cylinder 22; a heat radiation cylinder Za inserted into the inner cylinder 22 so that surfaces are separated from each other; a burner 3 connected to the heat radiation cylinder Za; and a combustion gas pipe Zb for circulating combustion gas Gg after passage through the heat radiation cylinder Za. The hot module HM is configured by arranging the combustion gas pipe Zb directly opposite each other in the vicinity of the outer cylinder 21.SELECTED DRAWING: Figure 12
Patent JP-2022095688-A (JP)
Title: Diagnosis of inflammatory bowel disease based on genes
IPC: A61P1/04
Filed: 2022-03-18
Abstract: PROBLEM TO BE SOLVED: To provide a composition for treating an inflammatory bowel disease (IBD) in a subject having a genotype including the presence of a single nucleotide polymorphism (SNP) on rs918490 including the G allele in nuclear position 46338729 (pos_hg19); and a method for providing information on the risk of the subject suffering from an inflammatory bowel disease (IBD). 
     SOLUTION: The composition comprises an anti-TL1A therapeutic agent, which is an anti-TL1A antibody or an antigen-binding fragment thereof. 
     SELECTED DRAWING: Figure 8C 
     COPYRIGHT: (C)2022,JPO&INPIT
Patent JP-2023140883-A (JP)
Title: Developer storage body, image forming unit, and image forming apparatus
Inventor: SUDO IKU
IPC: G03G15/08
Filed: 2022-03-23
Abstract: To provide a developer storage body that can sufficiently discharge developer and can reduce a load applied to a stirring member.SOLUTION: A developer storage body has: a storage member; a stirring member that stirs developer; a first swing member that includes a first fixed end, a first free end, and a first surface with which the stirring member comes into contact in the process of rotation, and is swung by the contact of the stirring member with the first surface; and a projection support part that is disposed projecting from a wall surface formed in the storage member, and is brought into contact with a second surface. Since the first swing member supported by the projection support part is swung and brought into contact with the wall surface formed in the storage member, a developer adhered to the wall surface is peeled off in association with the contact of the first swing member with the wall surface and separation of the former from the latter, and thereby the developer can be sufficiently discharged.SELECTED DRAWING: Figure 1
Patent JP-2023142329-A (JP)
Title: Organic electroluminescent element, manufacturing method for organic electroluminescent element, display panel and electronic apparatus
Inventor: KAWASHIMA HIROYUKI
IPC: H05B33/10
Filed: 2022-03-24
Abstract: To provide an organic electroluminescent element having a patterning the adherence of metal to which is suppressed with accuracy, a manufacturing method for the same, and a display and an electronic apparatus using the same.SOLUTION: Provided is an organic electroluminescent element comprising a lower electrode, a charge transportable layer, an upper electrode on the charge transportable layer, and a patterning layer on the charge transportable layer, the upper electrode being patterned by the patterning layer. In the upper electrode direction from the lower electrode, an electrode region where the upper electrode exists has the charge transportable layer and the upper electrode laminated in the order stated, and in the upper electrode direction from the lower electrode, a non-electrode region where the upper electrode does not exist has the charge transportable layer and the patterning layer laminated in the order stated.SELECTED DRAWING: Figure 1
Patent JP-2023142697-A (JP)
Title: Game machine
Inventor: OGURA TOSHIO
IPC: A63F7/02
Filed: 2022-03-25
Abstract: To provide an improved game machine regarding a performance when a game medium enters a start area.SOLUTION: A game machine includes game control means for performing control regarding progress of a game, especially a variable display and reservation storage, performance control means for performing control regarding a performance according to an instruction from the game control means, and display control means for controlling a liquid crystal display device, and can perform a specific display corresponding to the variable display corresponding to an instruction from the game control means and a reservation display corresponding to reservation storage.SELECTED DRAWING: Figure 1
Patent JP-2022095744-A (JP)
Title: Method of measuring at least one dimension of an object
IPC: B23Q17/24
Filed: 2022-03-28
Abstract: PROBLEM TO BE SOLVED: To provide a measuring method for improving the accuracy of measuring manufactured objects, particularly objects manufactured by removal of material or by deposition of material. 
     SOLUTION: A method of measuring at least one dimension (L) of an object (1) having a first axis (2), the method including the use of a first optical system (11) including an optical sensor (111) and having a second optical axis (113), includes: obtaining at least one series of data from the optical sensor when the object is in movement relative to the first optical system, notably an angular movement of the first axis relative to the second axis and/or a movement of the object in rotation about the first axis and/or a movement of the object in translation along the second axis; and processing the at least one series of data to quantify the at least one dimension. 
     SELECTED DRAWING: Figure 1 
     COPYRIGHT: (C)2022,JPO&INPIT
Patent JP-2023149234-A (JP)
Title: Vehicle controller and vehicle control method
Inventor: YOSHIMURA YUSUKE
IPC: B60R16/02
Filed: 2022-03-30
Abstract: To maintain a power supply state of an in-vehicle device for an appropriate time length after a vehicle user gets off a vehicle.SOLUTION: A vehicle controller (2) includes: an identifying unit (53) that identifies a parking location of a vehicle; and a control unit (54) that controls power supply to in-vehicle devices in response to operation on a vehicle power switch (41). The control unit (54) maintains the power supply to a target in-vehicle device which is at least one of the in-vehicle devices during a predetermined target duration time further after the vehicle is parked and the vehicle power switch (41) is turned off, and the target duration time is determined according to the parking location of the vehicle that is identified by the identifying unit (53).SELECTED DRAWING: Figure 2
Patent JP-2023150223-A (JP)
Title: Flat electric wire, flat electric wire with terminal, wire harness, and manufacturing method of flat electric wire
Inventor: SAWADA YUKA
IPC: H01B7/08
Filed: 2022-03-31
Abstract: To obtain, for example, a flat electric wire having an improved novel constitution, a flat electric wire with a terminal, a wire harness, or a manufacturing method of the flat electric wire.SOLUTION: A flat electric wire includes, for example, a plurality of conductors each extending in a first direction and arranged in a second direction crossing the first direction, and an insulating coating surrounding the plurality of conductors and extending in the first direction, The insulating coating has two wide walls that extend in the first direction and the second direction and sandwich the plurality of conductors in a third direction crossing the first direction and second direction, and two end walls that connect the two wide walls and extend in the first direction, the wide wall has an almost flat inner surface contacting with the plurality of conductors in a state where the plurality of conductors are lined up in a straight line.SELECTED DRAWING: Figure 1
Patent JP-2023150651-A (JP)
Title: Pachinko game machine
Inventor: AKITA DAISUKE
IPC: A63F7/02
Filed: 2022-03-31
Abstract: To provide a Pachinko game machine capable of enhancing game amusement.SOLUTION: Types of special games include at least a first special game and a second special game. The ball entry easiness of game balls into a variable member is different between a high base state A to be shifted when the first special game is executed and a high base state B to be shifted when the second special game is executed. Before the number of variation display times of a special symbol in the high base state B reaches a predetermined number of times, a second shift condition is not satisfied even if the result of a winning/losing lottery based on random numbers is a non-winning and the special symbol is stopped and displayed in a prescribed manner. On the other hand, after the number of variation display times of the special symbol in the high base state B reaches a predetermined number of times, the second shift condition is satisfied when the result of the winning/losing lottery based on the random numbers is the non-winning and the special symbol is stopped and displayed in the prescribed manner.SELECTED DRAWING: Figure 99
Patent JP-2023152479-A (JP)
Title: Substrate processing apparatus and substrate processing method
Inventor: TAKAHASHI TOMOHIRO
IPC: H01L21/304
Filed: 2022-04-04
Abstract: To effectively reduce a use amount of a phosphoric acid and a diluted solution, used for a phosphoric acid treatment.SOLUTION: A substrate processing apparatus (100) comprises: a first storage tank (110) that stores a phosphoric acid; a second storage tank (120) that stores a rinse liquid; a substrate holding part (130) that falls the substrate while being held, and implants a substrate (W) to a rinse liquid of the second storage tank (120); and a rinse liquid transfer part (140) that supplies the rinse liquid of the second storage tank (120) in a specific period of a rinse liquid immersion period where the substrate (W) is implanted into the second storage tank (120) to the first storage tank (110), and supplies the rinse liquid of the second storage tank (120) in a period after the specific period of the rinse liquid immersion period to the first storage tank (110).SELECTED DRAWING: Figure 4
Patent JP-2022091973-A (JP)
Title: Bispecific trivalent antibodies binding to claudin6 or claudin18.2 and cd3 for treatment of claudin expressing cancer diseases
IPC: C07K16/30
Filed: 2022-04-06
Abstract: PROBLEM TO BE SOLVED: To provide novel drugs and methods for the treatment of cancer diseases. 
     SOLUTION: The present disclosure provides binding factors comprising at least three binding domains, a first binding domain binding to a T cell-specific antigen, a second binding domain and a third binding domain binding to a claudin; and methods of using these binding factors or nucleic acids encoding the same for treating cancer. 
     SELECTED DRAWING: None 
     COPYRIGHT: (C)2022,JPO&INPIT
Patent JP-2022082732-A (JP)
Title: Induction heating device
IPC: H05B6/44
Filed: 2022-04-07
Abstract: PROBLEM TO BE SOLVED: To provide an induction heating device capable of promoting the cooling of an inner coil of an induction heating coil, efficiently heating the inner peripheral surface of the shaft hole of an object to be heated, sufficiently increasing the heating efficiency of the inner peripheral surface of the shaft hole, satisfactorily heating the upper and lower surfaces and an edge portion of the object to be heated, and uniformly induction heating the entire object to be heated. 
     SOLUTION: An induction heating coil includes an inner coil that includes a coil conductor, a coil cover, and a support block that can be attached in a state in which a radiation temperature sensor is oriented toward a shaft hole of an object to be heated while supporting the base end side of the coil conductor and the coil cover, and is inserted and placed in the shaft hole of the object to be heated, and an outer coil placed close to the outer peripheral surface of the object to be heated. The coil conductor and a conductor pipe are connected to a high-frequency power supply; a high-frequency current is supplied to the heating coil to induce and heat the object to be heated; and the temperature of the inner surface of the shaft hole of the object to be heated during the induction heating can be detected by the radiation temperature sensor. A cooling medium can be circulated and supplied from cooling medium supply means into the coil cover and the conductor pipe. 
     SELECTED DRAWING: Figure 7 
     COPYRIGHT: (C)2022,JPO&INPIT
Patent JP-2023156894-A (JP)
Title: Power converter and power converter assembly method
Inventor: KUWABARA TAKASHI
IPC: H02M3/28
Filed: 2022-04-13
Abstract: To provide a power converter and a power converter assembly method capable of improving the workability of assembling a power converter by eliminating the work of reversing a case by a worker when assembling the power converter.SOLUTION: A power converter 1000 includes a first case 107 in which a first main circuit portion 103 is provided, a second case 108 that is provided in parallel with the first case in a first horizontal direction, which is one of the horizontal directions, and in which a second main circuit portion 104 is provided, a ventilation passage 119 provided between the first case 107 and the second case 108 and arranged in the first horizontal direction, and a base portion 112 to which the lower end of the first case 107 and the lower end of the second case 108 are attached.SELECTED DRAWING: Figure 4
Patent JP-2023157447-A (JP)
Title: Direction control method of shield machine, direction control system and calculation method of prediction force point
Inventor: MATSUBARA KENTA
IPC: E21D9/093
Filed: 2022-04-15
Abstract: To provide a direction control method of a shield machine capable of predicting a target force point to be determined by an operator precisely, a direction control system and a calculation method of a prediction force point.SOLUTION: In calculating a prediction force point, a step S202 of generating a teacher data obtained by combining a target force point which is input by an operator actually as a correct answer data to information for learning, a step S 203 of generating a plurality of prediction models by executing a machine learning per pattern obtained by sorting the teacher data on the basis of a model generation condition, a step S204 of selecting a prediction model having a smallest difference between an acting force point obtained by inputting information for assessment to each of the plurality of prediction models and the target force point input by the operator actually corresponding to the information for assessment and a process S205 of calculating a prediction force point for a section to be excavated using an optimal prediction model are executed.SELECTED DRAWING: Figure 10
Patent JP-2023160574-A (JP)
Title: 画像処理装置、その制御方法、および、プログラム
IPC: G06T5/50
Filed: 2022-04-22
Abstract: 【課題】計算量を抑制しつつ、小領域間の差を目立たないようにする画像処理装置、その制御方法及びプログラムを提供する。【解決手段】制御部、ＲＯＭ、ＲＡＭ、光学系、撮像部、Ａ／Ｄ変換部、画像処理部、記録部、通信部、表示部及び指示入力部を有する撮像装置において、画像処理部は、第１の位置で第１の入力画像を所定サイズに分割して得られる複数の第１の位置の第１の小領域画像と、第１の位置から、互いに垂直する２つの方向に所定サイズの半分ずれた第２の位置で所定サイズに分割して得られる複数の第２の位置の第１の小領域画像とを抽出する第１の小領域抽出部と、第１の位置及び第２の位置の夫々の位置における、複数の第２の小領域画像に対してその頂点に近づくに応じて小さくなるように設定された合成率に基づき、第１の位置の複数の第２の小領域画像と、第２の位置の複数の第２の小領域画像とを合成する二位置小領域ブレンド部と、を有する。【選択図】図２
Patent JP-2023161235-A (JP)
Title: 航続可能距離算出装置及び航続可能距離算出方法
IPC: B60L3/00
Filed: 2022-04-25
Abstract: 【課題】移動体の走行状態に追従した航続可能距離を算出すること。【解決手段】本開示の一態様に係る航続可能距離算出装置は、動力源である電動機１３、及び、電動機１３に電力を供給する蓄電装置１１を備える移動体１の航続可能距離を算出する。航続可能距離算出装置は、蓄電装置１１の残容量を算出する残容量算出部１５２と、移動体１の走行距離及び蓄電装置１１の電力消費量に基づいて、電費を算出する電費算出部１５３と、電動機１３の状態に基づいて、電費を増減させる度合いを示すレート係数を設定する設定部１５５と、レート係数を用いて、電費を補正するレート処理を実行するレート処理部１５６と、レート処理が実行された電費及び蓄電装置１１の残容量に基づいて、移動体１の航続可能距離を算出する距離算出部１５７と、移動体１の航続可能距離をメータに表示させる表示制御部１５８と、を備える。【選択図】図２
Patent JP-2023161476-A (JP)
Title: Ｐｅｔ装置、画像処理方法及びプログラム
IPC: G01T1/161
Filed: 2022-04-25
Abstract: 【課題】画質を向上させること。【解決手段】実施形態に係るＰＥＴ装置は、ＰＥＴ検出器と、決定部と、再構成部とを備える。ＰＥＴ検出器は、対消滅ガンマ線の入射によって生じるイベントの発光位置を実数座標系で検出可能である。決定部は、前記ＰＥＴ検出器にて検出されたイベントに基づいて規定されるＬＯＲ（Line Of Response）と、前記発光位置とに基づいて、仮想検出器領域を決定する。再構成部は、前記仮想検出器領域に基づいて、再構成処理を行う。【選択図】図１
Patent JP-2022183026-A (JP)
Title: System for dental care recording and explanation to patient, and care record sheet
Inventor: TSUJI KEIEN
IPC: G16H10/60
Filed: 2022-04-27
Abstract: To provide a system for supporting dental care recording and explanation to a patient, and a care record sheet therefor, capable of efficiently and accurately acquiring and implementing a wide range of necessary knowledge and work of the dentist at a medical tableside (a chair side) and a home visit medical treatment site in the flow of the care, facilitating information sharing inside/outside the clinic and further securing dental patients' peace of mind and medical security.MEANS FOR SOLVING THE PROBLEM: A system for supporting dental care recording and explanation to a patient includes: a care record sheet that records information necessary for supporting dental care; a system input part for supporting dental care recording and explanation to a patient that inputs information into the care record sheet; a system storage part for supporting dental care recording and explanation to a patient that stores the care record sheet; and a system control part for supporting dental care recording and explanation to a patient that controls the system input part for supporting dental care recording and explanation to a patient, and the system storage part for supporting dental care recording and explanation to a patient.SELECTED DRAWING: Figure 1
Patent JP-2023165057-A (JP)
Title: イリジウム触媒を用いる還元的酸化反応
IPC: C07C45/00
Filed: 2022-05-02
Abstract: 【課題】水素ガスとイリジウム触媒を用いた還元的酸化反応によるエノン構造を有する化合物の製造方法を提供する。【解決手段】式（I）の化合物から、イリジウム触媒と水素を用いることを特徴とする、式（II）の化合物の製造方法。JPEG2023165057000015.jpg50142（式中、Ｒ1、Ｒ２およびＲ３は、それぞれ独立して、水素原子または置換されていてもよい炭化水素基を示し、Ｒ１とＲ２、Ｒ２とＲ３の２つの隣接する置換基は、それらが結合している炭素原子と一緒になって、置換されていてもよい３～１２員の炭素環を形成してもよく、Ｒ４は、水素原子または保護基を示す。）【選択図】なし
Patent JP-2022100410-A (JP)
Title: Game machine
IPC: A63F7/02
Filed: 2022-05-06
Abstract: PROBLEM TO BE SOLVED: To provide a game machine enabling a pile-up of game boards under production. 
     SOLUTION: In a game board 530, nails 536 are planted on the front face of a plate part which is formed in a flat plate shape, and an outer peripheral edge reinforcement ribs 531 are erectly arranged from the outer periphery of the plate part to a rear face side. Corresponding to arranging positions of an outer rail part 31 on a board surface, outer peripheral edge rail receptions 531c, 531d are provided to the outer peripheral edge reinforcement ribs 531. When a plurality of game boards 530 are piled up so that a rear face of a game board 530 and a board surface 530a of another game board 530 are opposing to each other, the outer peripheral edge rail receptions 531c, 531d are set so as to contact a part of the side edge of the outer rail part 31. This makes it possible to tightly contact the outer rail part 31 and the outer peripheral edge rail receptions 531c, 531d in a vertical direction alternately, when the game boards 530 are piled up. As the result, a pile-up of game boards 530 under production is enabled. 
     SELECTED DRAWING: Figure 33 
     COPYRIGHT: (C)2022,JPO&INPIT
Patent JP-2023166671-A (JP)
Title: 海流発電用三胴船
IPC: B63B35/00
Filed: 2022-05-10
Abstract: 【課題】強い風を硬翼帆で受けて帆走する船の航行によって生じる海流で船体の下に設けたプロペラを回転し発電機で電気を起こす海流発電用三胴船を提供する。【解決手段】先細の船首を持つ主胴船２の左右に一対のサイドフロート３、3を設けた硬翼帆５１で帆走する三胴船１において、発電用プロペラ６２を内蔵する円筒形ダクト４を主胴船２とサイドフロート３の間に設けた。発電用プロペラ６２と発電機６３は発電機ユニット容器６１内に納められ、非発電時には発電機ユニット容器６１は吃水上の船内の発電機ユニット収納室２５に移動できるようにして、海水の抵抗を減らした。【選択図】図４
Patent JP-2022107635-A (JP)
Title: Beauty device
IPC: A61N1/36
Filed: 2022-05-11
Abstract: PROBLEM TO BE SOLVED: To create a brush-like beauty device having an excellent structure in order to apply electrical beauty action; and to provide a technology usable for various purposes. 
     SOLUTION: A beauty device 1 has many pin bodies 21 in a body 10, the beauty device 1 having an electrode area 22 energizable to an action site of a user in at least a part of the pin bodies 21, and has a conductive elastic body 25 installed internally over the shaft direction of the pin bodies 21. A current is sent from a current-carrying circuit of the body 10 to the electrode area 22 through the elastic body 25, to thereby apply beauty action to the action site. 
     SELECTED DRAWING: Figure 1 
     COPYRIGHT: (C)2022,JPO&INPIT
Patent JP-2023008820-A (JP)
Title: Customized instructional flowchart generation and modification system
Inventor: BERNHARD JOSEPH SCHOLZ
IPC: G05B19/418
Filed: 2022-05-19
Abstract: To provide systems and methods for tailoring a single prescription for different users for completing tasks on equipment.SOLUTION: A customized instructional flowchart generation and modification system 100 is configured for: obtaining a prescription representative of a flowchart or decision tree for performing a main set of tasks; obtaining characteristics of equipment and/or a user of the prescription; tailoring, based on the characteristics, content of the prescription that is displayed to the user during performance of at least some of the tasks on the equipment; and tailoring the content of the prescription by hiding one or more of the tasks that are not applicable to the equipment from display to the user. This can occur without any data or information being removed from or added to the prescription. Instead, the prescription can be tailored by changing what information is automatically and/or initially displayed to the user.SELECTED DRAWING: Figure 1
Patent JP-2023173843-A (JP)
Title: 洗浄通知装置、洗浄通知方法、及び洗浄通知プログラム
IPC: B60R11/02
Filed: 2022-05-26
Abstract: 【課題】本発明は、撮影機器の洗浄が実施されたことを通知する場合において、ユーザが通知を容易に認識できる洗浄通知装置、洗浄通知方法、及び洗浄通知プログラムを提供することを目的とする。【解決手段】洗浄通知装置は、車両に搭載された前記車両の外部を撮影する撮影機器の洗浄が行われた場合に、前記車両に搭乗しているユーザの視線を検出する検出部と、前記ユーザが前記撮影機器によって撮影された撮影画像を表示する第１表示機器を見ている場合に、前記撮影機器の洗浄が実施された旨を示す実施通知に関する処理を実行する処理部と、を備える。【選択図】図２
Patent JP-2023176052-A (JP)
Title: 故障復旧支援システムおよび故障復旧支援方法
IPC: G06Q10/20
Filed: 2022-05-31
Abstract: 【課題】エラーコードを発報できない故障機器であっても、復旧作業を高効率で行うことができる故障復旧支援システムを提供する。【解決手段】故障に関する情報が入力される故障情報入力部１１と、故障情報入力部１１に入力された情報に基づいて過去の類似事例を抽出する事例検索部３０と、事例検索部３０で抽出された類似事例に基づいてエラーコードを推定するエラーコード推定部３１と、事例検索部３０で抽出された類似事例に基づいて故障箇所を推定する故障箇所推定部３３と、エラーコード推定部３１で推定されたエラーコードに基づいて復旧作業のための対応フローＦ２１を選択する対応フロー選択部４１と、対応フロー選択部４１で選択された対応フローＦ２１において、故障箇所推定部３３で推定された故障箇所を開始位置として指示する開始位置指示部４３とを有する。【選択図】図１
Patent JP-2023176261-A (JP)
Title: エチニル基を有する縮合多環芳香族化合物の製造方法
IPC: C07F7/10
Filed: 2022-05-31
Abstract: 【課題】窒素を有する縮合多環芳香族化合物を用いて、簡便でかつ安価にカップリング反応ができるエチニル基を有する芳香族化合物の製造方法を提供する。【解決手段】窒素を含有するヘテロ環とハロゲン置換ベンゼン環との縮合多環芳香族化合物と、エチニル化合物とのカップリング反応において、アミン存在下、パラジウム炭素、リン化合物、銅化合物と共に、窒素含有有機溶媒中でカップリング反応を行う下記一般式（３）で示すエチニル基を有する縮合多環芳香族化合物を製造方法である。TIFF2023176261000014.tif38159（式中、環状Ｎは窒素を含むヘテロ環、Ａは水酸基を有する炭化水素基またはトリアルキルシリル基を示す。）【選択図】なし
Patent JP-2023178013-A (JP)
Title: 微細気泡発生ノズル
IPC: B01F23/23
Filed: 2022-06-03
Abstract: 【課題】 キャビテーション音を低減させることができる技術を提供する。【解決手段】 微細気泡発生ノズルは、ノズルユニットと、遮蔽体と、を備え、ノズルユニットは、気体が水に溶解している気体溶解加圧水が流入する流入口と、流入口から流入する気体溶解加圧水の圧力を減圧する減圧部と、減圧部よりも下流側に設けられており、減圧部から流入する気体溶解加圧水が衝突することによって気体溶解加圧水の流路の向きを変更させる第１衝突壁を有する第１衝突室と、第１衝突室よりも下流側に設けられており、第１衝突室を通過した気体溶解加圧水が衝突することによって気体溶解加圧水の流路の向きを変更させる第２衝突壁を有する第２衝突室と、第２衝突室を通過した気体溶解加圧水が流出する流出口と、を備え、遮蔽体は、ノズルユニットの外側において、流出口と対向する位置に配置されている。【選択図】図６