baber/WOPTO huggingface dataset:
Patent JP-2023138057-A (JP)
Title: control system
Inventor: MAJIMA MICHIAKI
IPC: H04L67/61
Filed: 2022-03-18
Abstract: To provide a control system capable of efficiently transmitting data having different priorities when transmitting data from one controller to another controller.SOLUTION: A control system disclosed herein includes a network line which connects two controllers such that the two controllers can communicate with each other. A control unit of a first controller executes: packet generation processing of generating, from first data, a single packet which is started to be repetitively transmitted in a first cycle, and also dividing second data and generating a plurality of packets which are started to be transmitted in a second cycle; and packet transmission processing of transmitting the single packet and the plurality of packets to a second controller via the network line. In the packet transmission processing, the single packet is transmitted preferentially relative to the plurality of packets, and each size of the plurality of packets is determined on the basis of the first cycle and a transfer rate of the network line.SELECTED DRAWING: Figure 1
Patent JP-2023139356-A (JP)
Title: Method for installing power generator for columnar support
Inventor: USUI TASUKU
IPC: H02S20/10
Filed: 2022-03-22
Abstract: To solve problems in conventional photovoltaic power generation installed flatly on the ground upon deforestration and development construction, which destroys a natural environment and causes a disaster such as land sliding.SOLUTION: The present invention is characterized in that a columnar support is installed vertically on the current landform, foot protection for the columnar support is performed, photovoltaic power generators are provided at any intervals in a middle part of the columnar support, metal fittings movable under strong wind are provided to reduce wind power, and at the same time, an impact attenuating spring works. In addition, a structure in which a levelling stopper for preventing a power generator panel from rotating under abrupt strong wind is provided to ensure safety is adopted.SELECTED DRAWING: Figure 1
Patent JP-2023139656-A (JP)
Title: Cushion to be installed in bathtub
Inventor: KONNO HARUO
IPC: A47K3/12
Filed: 2022-03-22
Abstract: To provide a cushion to be installed in a bathtub, which is formed of an easily cleaned and eco-friendly material and capable of reducing a water amount to be used for the bathtub while allowing a user to hold a comfortable posture in the bathtub.SOLUTION: A cushion to be used for reducing a hot water use amount and holding a posture of a user is formed of a flexible material not transmitting liquid and filled with an aqueous gel. The aqueous gel is a cellulose nanofiber.SELECTED DRAWING: None
Patent JP-2022075910-A (JP)
Title: Shunt murmur analyzing device
IPC: A61M1/36
Filed: 2022-03-23
Abstract: PROBLEM TO BE SOLVED: To appropriately support shunt stenosis diagnosis by analyzing shunt murmurs acquired from a subject. 
     SOLUTION: A shunt murmur analyzing device includes acquisition means (110) for acquiring shunt murmur information on shunt murmurs from the periphery of a shunt formation site of a subject, and output means (160) for outputting information indicating an intermittence degree in an acoustic feeling of the shunt murmurs based on the shunt murmur information acquired by the acquisition part. The output information indicating the intermittence degree indicates the possibility of a stenosis occurrence in the shunt formation site quantitatively. Thus, the shunt murmur analyzing device can appropriately support the stenosis diagnosis. 
     SELECTED DRAWING: Figure 1 
     COPYRIGHT: (C)2022,JPO&INPIT
Patent JP-2023141204-A (JP)
Title: Explanatory variable proposition device, explanatory variable proposition method, and program
Inventor: FUJIMORI TAKAHIRO
IPC: G06F16/33
Filed: 2022-03-23
Abstract: To propose an unknown explanatory variable effective for an objective variable.SOLUTION: An explanatory variable proposition device includes: a composite variable generation unit configured to calculate a word vector of a composite variable by adding the word vector of a variable regarding the composite variables obtained by combining a plurality of variables; a distance calculation unit configured to calculate an inter-vector distance between the word vector of an objective variable and the word vector of the composite variable; and an explanatory variable extraction unit configured to extract the composite variable similar to the objective variable based on the inter-vector distance.SELECTED DRAWING: Figure 3
Patent JP-2023141430-A (JP)
Title: Mounting structure
Inventor: MORI TAKAHISA
IPC: E04G21/16
Filed: 2022-03-24
Abstract: To provide a mounting structure that does not require work such as cutting and removing a member fixed to an outer surface of a lower steel column from the outer surface.SOLUTION: A mounting structure 10 has a structure in which a first support member 20 that supports a robot arm 80 is removably fixed to an outer surface 1b of a lower steel column 1A via a fixing unit 11. A connector 16 includes a first fastener 17 and a second fastener 18. A head 17a is removably engaged with a receiver 14 so as to restrain the movement of the outer surface 1b of the lower steel column 1A in a normal direction. Also, with a shaft 17b protruding from a notch 15 in the normal direction, a base end 17c of the shaft 17b is in contact with an edge 15a of the notch 15. With the shaft 17b inserted through a fixed angle 12, the second fastener 18 is fastened to the shaft 17b so that the head 17a and the second fastener 18 sandwich the fixed angle 12 and the receiver 14.SELECTED DRAWING: Figure 3
Patent JP-2023141963-A (JP)
Title: CO2 mediation system
Inventor: MITO TAKUYA
IPC: G06Q30/0601
Filed: 2022-03-24
Abstract: To mediate between a supplier who wants to recover CO2 and a demander who wants to use CO2.SOLUTION: A CO2 mediation system 10 which mediates between a supplier and a demander by circulating a cartridge 1 having a recovery unit for recovering CO2 from air includes: an adsorption station 2 provided in a space in which a supplier discharges CO2, and circulating air via the cartridge 1; a terminal 5; a demander terminal 6; and a mediation server 4 for mediating between the supplier and the demander. The mediation server 4 acquires recovery request information via the supplier terminal 5, acquires use request information via the demander terminal 6, and determines the number of cartridges 1 to be provided to the supplier on the basis of the acquired information.SELECTED DRAWING: Figure 3
Patent JP-2022088501-A (JP)
Title: Botulinum toxin prefilled syringe system
IPC: A61M5/31
Filed: 2022-03-24
Abstract: PROBLEM TO BE SOLVED: To provide a stable botulinum toxin prefilled syringe having excellent functionality in terms of injection force characteristics. 
     SOLUTION: The present invention relates a botulinum toxin prefilled syringe system 10 with desirable injection force characteristics, in particular low gliding force and low break loose force, comprising a syringe barrel 12 of glass containing a liquid botulinum toxin composition, a plunger stopper 14, and a closure device 18 such as a tip cap or a needle shield. In addition, the present invention relates to a kit comprising the botulinum toxin prefilled syringe system, and optional instructions for use, and to use of the botulinum toxin prefilled syringe system in therapeutic and cosmetic applications. 
     SELECTED DRAWING: Figure 1 
     COPYRIGHT: (C)2022,JPO&INPIT
Patent JP-2023142757-A (JP)
Title: Deodorizing material and method for manufacturing the same, and method for manufacturing coating liquid for deodorizer layer
Inventor: TAKAHAMA RYOJI
IPC: A61L9/014
Filed: 2022-03-25
Abstract: To provide a deodorizing material and a method for manufacturing the same, while using activated carbon, which is effective against many odor gas components but does not have the effect of removing aldehyde, that also has an excellent aldehyde removal effect, and to provide a method for manufacturing coating liquid for deodorizer layer.SOLUTION: Provided is a deodorizing material 1 that includes a support 10 and a deodorizer layer 20 fixed to the support 10, and in which, characterized, the deodorizer layer 20 contains activated carbon, a functional material made of at least one of silica gel and zeolite, acid hydrazide, aminotriazole, and a binder.SELECTED DRAWING: Figure 1
Patent JP-2023143099-A (JP)
Title: Wind turbine comprising damping system, design method therefor, and damping system
Inventor: KOBAYASHI TOSHIYUKI
IPC: F03D13/20
Filed: 2022-03-25
Abstract: To provide a wind power generation wind turbine that can add damping to a wind turbine body without large-scale modification, and a design method for the wind power generation wind turbine.SOLUTION: A wind power generation wind turbine comprises: a wind turbine body 110 comprising a rotor 111 including a blade 111b for receiving wind power, and a tower 113 on which the rotor 111 is installed at a top part; a jacket 120 comprising a plurality of leg parts 121 erected from a water bottom 142 and located beside the tower 113; and a damping damper 130 connecting the jacket 120 and the tower 113 and for performing a damping function.SELECTED DRAWING: Figure 1
Patent JP-2023146658-A (JP)
Title: Method for repairing concrete structure
Inventor: SHIMADA MASANORI
IPC: E04G23/02
Filed: 2022-03-29
Abstract: To provide a method for repairing a concrete structure capable of improving the adhesion of a repair material to the surface of the concrete structure.SOLUTION: In the method for repairing a concrete structure 100, a composition containing an aqueous silicate solution is coated on the surface of the concrete to be repaired in step S20 (coating step), a repair material 10 in which a laminate 4 is coated or impregnated with a composition containing an aqueous silicate solution and a pozzolan active substance is pasted on the surface of the concrete after step S10 in step S30 (pasting step), and the repair material 10 is hardened after the step S30 in step S40 (hardening step). The molar ratio of the silicate aqueous solution in the step S30 is greater than or equal to the molar ratio of the silicate aqueous solution in the step S20.SELECTED DRAWING: Figure 3
Patent JP-2023147391-A (JP)
Title: air conditioning system
Inventor: TAKEDA EMI
IPC: F24F11/72
Filed: 2022-03-30
Abstract: To adjust an air supply amount for each air conditioning target space based on a determination result of the possibility that dew condensation occurs in a room, to avoid dew condensation, thereby suppressing useless air conditioning energy consumption, in a whole building air conditioning system.SOLUTION: An air conditioning system (1) that distributes and supplies air to a plurality of air-conditioned spaces, comprises: detection means (5) of detecting a room temperature and a humidity of each of the plurality of air-conditioned spaces; setting means (16) of setting a set temperature and a set humidity as control targets, and selecting and setting whether or not to permit change in the set temperature; and a control device (15) that changes the set temperatures of the plurality of air-conditioned spaces based on information possessed by the detection means (5) and the setting means (16).SELECTED DRAWING: Figure 13
Patent JP-2023148558-A (JP)
Title: Method for evaluating deposit on surface of tooth
Inventor: SATO MINAMI
IPC: G01N21/3563
Filed: 2022-03-30
Abstract: To provide a method for evaluating deposits on the surface of a tooth by which the chemical characteristics of the deposits adhered onto the surface of the tooth can be grasped, and also to provide the method for evaluating the tooth and the method for evaluating a preparation using the same.SOLUTION: In a method for evaluating deposits on the tooth surface according to the present invention, an infrared spectrum of the tooth surface measured by a specular reflection method is used as an evaluation index of the deposits adhered onto the tooth surface. In the evaluation method, it is preferable that the ratio between peak intensities or the ratio between peak areas of peaks respectively derived from the organic substance and phosphoric acid in the infrared spectrum is used as an evaluation index.SELECTED DRAWING: Figure 1
Patent JP-2023149415-A (JP)
Title: Control method of leg walking
Inventor: SHIN HIROFUMI
IPC: B25J5/00
Filed: 2022-03-31
Abstract: To provide a control method of leg walking that allows walking to be efficiently controlled.SOLUTION: A leg walking device includes a spring mechanism, a first driving source for changing a leg length, and a second driving source for rotating a leg. A control method of leg walking includes: a first step in which a support leg makes the first driving source for changing a support leg length immobile during single leg support, and a second step in which a ground-contact impact after the single leg support and immediately before both leg support is absorbed using the spring mechanism, in the leg walking device.SELECTED DRAWING: Figure 12
Patent JP-2022084945-A (JP)
Title: Dosage forms of controlled release at specific gastrointestinal sites
IPC: A61K9/24
Filed: 2022-04-01
Abstract: PROBLEM TO BE SOLVED: To provide a dosage form of controlled release at specific gastrointestinal sites. 
     SOLUTION: The present invention discloses a dosage form of controlled release at specific gastrointestinal sites. The dosage form includes a shell defining a first and a second compartment, a first active phamaecutical ingredient (API) loaded in the first compartment, and a second API loaded in the second compartment, wherein the first API and the second API can be the same or different. The shell includes a first material soluble in a first gastrointestinal site and a second material soluble in a second gastrointestinal site. 
     SELECTED DRAWING: Figure 1 
     COPYRIGHT: (C)2022,JPO&INPIT
Patent JP-2023154599-A (JP)
Title: Game machine
Inventor: FUJII MOTOYUKI
IPC: A63F7/02
Filed: 2022-04-07
Abstract: To provide a game machine capable of suitably giving a notice regarding operation of the game machine.SOLUTION: In addition to collecting ball entry histories into a general winning port 61, a first operation port 62, a second operation port 63, a variable winning device 65, and an out port 68, the number of differential balls and the number of remaining balls up to the number of stop balls are derived on the basis of the collected ball entry histories, and a game state is shifted to a game stop state on the basis of the derived number of remaining balls being 0 or less. In addition, prior to the shift to the game stop state, a stop advance notice is executed to give an advance notice regarding the shift. As the stop advance notice, in an open/close execution mode, it is possible to execute a second stop advance notice in a manner different from that of a first stop advance notice which is executed not in the open/close execution mode.SELECTED DRAWING: Figure 4
Patent JP-2023155745-A (JP)
Title: Thin-film transistor, and method of manufacturing the same
Inventor: IMAMURA CHIHIRO
IPC: H01L29/786
Filed: 2022-04-11
Abstract: To provide a thin-film transistor having an excellent flex resistance and a good transistor characteristic, in an organic/inorganic hybrid type thin-film transistor.SOLUTION: Provided is a thin-film transistor that has an insulation substrate, and at least has a gate electrode layer, a gate insulating layer, a semiconductor layer, a source electrode layer, and a drain electrode layer on the substrate. The gate insulating layer comprises: a first gate insulating layer containing an organic material; and a second gate insulating layer consisting of an inorganic compound and formed in an upper surface of the first gate insulating layer. A carbon concentration of the second gate insulating layer is 0.5 to 10 at%, and a hydrogen concentration of the same is 1 to 15 at%. A film thickness of the second gate insulating layer is 2 to 60 nm.SELECTED DRAWING: Figure 1
Patent JP-2023155852-A (JP)
Title: Game machine
Inventor: ICHIHARA TAKAAKI
IPC: A63F7/02
Filed: 2022-04-11
Abstract: To provide a game machine capable of executing a new display performance.SOLUTION: As a read-ahead performance that changes a display mode of a standby reservation display, a game machine can execute a first performance in which a moving display of the standby reservation display is executed while a decorative symbol is temporarily stopped, and a second performance in which at least one decorative symbol is varied at high speed while displaying a suggestion display. An operation promotion display that prompts a player to operate an operation unit is displayed in a state where the decorative symbol is varied at high speed after the end of the moving display of the standby reservation display in the first performance.SELECTED DRAWING: Figure 399
Patent JP-2022171581-A (JP)
Title: Holding device, and holding method executed by use of holding device
Inventor: Cai yao-hua
IPC: B26D7/20
Filed: 2022-04-14
Abstract: To provide a holding device which can automatically hold and fix a tabular processing object, and a holding method that is executed by use of the holding device.SOLUTION: A holding device 100 can lift up a processing object placed at a holding position from a top surface 101 of a fulcrum 11 in such a manner that each holding pillar 23 moves upward by drive of driving means 3, and then, can surround the processing object when the holding pillar 23 projects from an opening on an outer end part 132 side of a guide groove 13, and further, can pinch and hold the processing object when the holding pillar 23 is driven to the processing object.SELECTED DRAWING: Figure 2
Patent JP-2023160600-A (JP)
Title: 遊技機
IPC: A63F7/02
Filed: 2022-04-22
Abstract: 【課題】演出ボタン等の操作手段を用いた演出に対する遊技者の関心を高め、遊技興趣の向上を図ることができる遊技機を提供する。【解決手段】操作有効期間中、演出ボタンの操作に基づくボタン演出を１回しか実行させないのではなく、ボタン操作回数に応じて異なるキャラクタと異なるセリフの組み合わせを選択できるよう、ボタン操作回数毎に異なる演出内容を複数対応付けた１つの演出パターンを、図柄変動開始時に選択するようにした。そして、演出ボタンが操作される度に、その操作回数に対応する内容を演出パターンから特定し、その内容に従ってボタン演出を実行させるようにした。これにより、演出ボタンが操作される度に、実行中のボタン演出に代えて、新たな操作に基づくボタン演出が実行される。【選択図】図２４
Patent JP-2023160620-A (JP)
Title: 遊技機
IPC: A63F7/02
Filed: 2022-04-22
Abstract: 【課題】予め定められた遊技の流れで遊技を進行させ得る遊技機を提供する。【解決手段】パチンコ遊技機１は、演出制御用マイコン１０１が、不適切な位置への遊技球の打ち出し操作が行われたか否かを判定する。そして、演出制御用マイコン１０１は、不適切な位置への遊技球の打ち出し操作、具体的には非時短状態での右打ち操作が行われたことを示す判定結果となったことに基づいて、遊技データ管理部１２８に記憶されている獲得ポイントを減点する。【選択図】図３５
Patent JP-2023162649-A (JP)
Title: 球面研削方法および球面研削装置
IPC: B24B11/10
Filed: 2022-04-27
Abstract: 【課題】ワークを高精度に研削することができる球面研削方法および球面研削装置を提供すること。【解決手段】球面研削方法は、砥石を、砥石を旋回させるための旋回中心軸に対して傾斜させない状態において、砥石の形状を形状測定機構によって測定する第一の工程と、砥石を旋回中心軸に対して傾斜させた状態において、砥石の形状を形状測定機構によって測定する第二の工程と、第一の工程で取得した砥石の形状データと、第二の工程で取得した砥石の形状データとを合成することにより、砥石を旋回中心軸に対して傾斜させた場合における推定形状データを取得する第三の工程と、推定形状データをもとに、砥石と所望の曲率のワークとの接触点を算出する第四の工程と、接触点をもとに、実際の加工において設定する、旋回中心軸に対する砥石の傾斜角度を算出する第五の工程と、砥石を傾斜角度に設定して、ワークの球面研削を行う第六の工程と、を含む。【選択図】図５
Patent JP-2023163338-A (JP)
Title: 内燃機関の制御装置
IPC: F02D45/00
Filed: 2022-04-28
Abstract: 【課題】吸気温度検出信号の過補正を抑制できる簡易な構成の吸気温度補正制御装置を備えた、内燃機関の制御装置を提供する。 
【解決手段】内燃機関の制御装置は、吸気温度検出信号の進み補償量を演算する一次進み補償手段（２０１）と、一次進み補償手段（２０１）の時定数を演算する時定数決定手段（２０２）と、一次進み補償手段（２０１）の演算値を入力とする一次遅れ補償手段（２０３）と、を有する吸気温度補正制御装置（４００）を備え、時定数決定手段（２０２）は、吸気流量検出信号に基づいて時定数を設定する時定数設定手段（２０２１）と、時定数決定手段（２０２）が演算する時定数の上限値を設定する上限値設定手段（２０２２）と、時定数設定手段（２０２１）が設定した時定数と、上限値設定手段（２０２２）が設定した上限値と、のうちの最小値を選択して出力する最小値選択手段（２０２３）と、を備えている。 
【選択図】図２
Patent JP-2022110018-A (JP)
Title: Attenuator circuit, radio frequency module, and radio device
IPC: H03H11/16
Filed: 2022-05-02
Abstract: PROBLEM TO BE SOLVED: To provide an attenuator circuit having a phase shift circuit and a gain compensation circuit. 
     SOLUTION: A radio frequency (RF) attenuator circuit 100 includes at least one of attenuation blocks 102a to 102c arranged in series between an input node IN and an output node OUT. Each attenuation block includes at least one of local bypass routes 105a, 105b, and 105c. The RF attenuator circuit includes: a global bypass route 106 equipped between the input node and the output node; and a phase compensation circuit 108 for compensating for an off-capacity effect related to at least one of the global bypass route and the local bypass route. 
     SELECTED DRAWING: Figure 3 
     COPYRIGHT: (C)2022,JPO&INPIT
Patent JP-2023165087-A (JP)
Title: 遊技機
IPC: A63F7/02
Filed: 2022-05-02
Abstract: 【課題】リーチ演出のタイトル表示に関連して演出効果を高めた遊技機を提供すること。【解決手段】演出制御用ＣＰＵは、画像表示装置に表示される飾り図柄がリーチ態様となった後、スーパーリーチ演出を実行可能である。スーパーリーチ演出は、対応するタイトル文字を表示させるタイトル表示パートと、演出結果が報知されるまでの導入パートと、を含んで構成される。そして、スーパーリーチ演出におけるタイトル表示パートの前に飾り図柄をリーチ態様で表示させ、タイトル表示パートにおいて、リーチ態様となった飾り図柄の表示位置を用いるようにスーパーリーチ演出に対応するタイトル文字を表示させる。遊技の進行を制御する遊技制御手段と、演出を制御する演出制御手段と、液晶表示器と、を備え、遊技制御手段から送信された演出制御コマンドに応じて、演出制御手段は、液晶表示器にガラス板画像を表示させ、ガラス板画像が割れる割れ演出を実行する。【選択図】図１１－３２
Patent JP-2023166090-A (JP)
Title: 車両用投射装置
IPC: B60Q1/50
Filed: 2022-05-09
Abstract: 【課題】 開閉するドアへの接触を防止する機能を備えた車両用投射装置を提供する。【解決手段】 本発明の車両用投射装置は、足等の挿入を検知するセンサ１１０と、車両のドアを開閉するドア開閉機構１２０と、制御部１３０と、画像を投射する投射部１４０と、駆動信号ＤＶ２により投射部１４０のアクチュエータを駆動する駆動部１５０とを含む。制御部１３０は、センサ１１０によって足等の検知が行われるとき、駆動部１５０を介して投射部１４０に検知位置Ｈを照射させ、センサ１１０により足等の挿入が検知されたとき、駆動部１５０を介して投射部１４０にドアの接触境界線地面位置Ｑを照射させる。【選択図】 図２
Patent JP-2023166294-A (JP)
Title: 燃料電池システム、並びに、燃料電池システムの起動方法、停止方法及び極低負荷運転方法
IPC: H01M8/04
Filed: 2022-05-09
Abstract: 【課題】起動時に結露発生を抑制する。【解決手段】燃料電池システムは、燃料ガス及び酸化剤ガスを用いて発電可能な発電室を有する燃料電池と、燃料電池からの排ガスが流れる排ガスラインと、排ガスラインに設けられた燃焼器と、排ガスラインに設けられた第１加熱器と、第１加熱器を通過した排ガスと酸化剤ガス供給ラインを流れる前記酸化剤ガスとを熱交換可能な熱交換器とを備える。【選択図】図１
Patent JP-2023167616-A (JP)
Title: 情報処理装置、情報処理方法及びプログラム
IPC: G06T7/70
Filed: 2022-05-12
Abstract: 【課題】多数の３次元モデルを用意することなく、対象物の位置及び姿勢を推定できる技術を実現する。 
【解決手段】情報処理装置（１）は、対象物をセンシング範囲に含むセンサによって得られたセンシングデータを取得する取得部（１１）と、取得部（１１）が取得したセンシングデータと３次元モデルとを用いた第１の推定処理によって、上記対象物の位置及び姿勢に関する１又は複数の候補解を導出する推定部（１２）と、上記１又は複数の候補解の各々に関して、上記３次元モデルを拡張する拡張部（１３）と、を備え、推定部（１２）は、拡張部（１３）による拡張後の各３次元モデルを用いた第２の推定処理によって、上記対象物の位置及び姿勢を推定する。 
【選択図】図１
Patent JP-2023170397-A (JP)
Title: ヘッダ部材、熱交換器ユニット、及びヘッダ部材の製造方法
IPC: F28F9/02
Filed: 2022-05-19
Abstract: 【課題】複数の第一伝熱管と複数の第二伝熱管とが互いに隣り合うように配置された構成の熱交換器に対して、第一流体の及び第二流体を混合させることなく簡易な構成で分岐又は集合させる。 
【解決手段】ヘッダ部材は、熱交換器の複数の第一伝熱管の端部と第一外部配管接続部との間に配置される第一流路部と、熱交換器と複数の第二伝熱管の端部と第二外部配管接続部との間に配置される第二流路部と、を備え、第一流路部は、複数の第一伝熱管とそれぞれ繋がる複数の第一流路を有し、複数の第一流路は、順次段階的に接続されて一の第一外部配管接続部に接続され、第二流路部は、複数の第二伝熱管とそれぞれ繋がり、複数の第一流路とは独立して形成された複数の第二流路を有し、複数の第二流路は、順次段階的に接続されて一の第二外部配管接続部に接続される。 
【選択図】図３
Patent JP-2022107048-A (JP)
Title: Droplet injector
IPC: B41J2/14
Filed: 2022-05-20
Abstract: PROBLEM TO BE SOLVED: To suppress pressure fluctuations generated within a common liquid chamber. 
     SOLUTION: A channel unit, which is formed in such a manner that a plurality of laminated plates are stacked, has a first damper chamber that is extended to overlap a plurality of pressure chambers in such a manner that a direction of arrangement of the pressure chambers is set to be a longitudinal direction, when seen from the side where a plurality of nozzles are opened. At a height along a lamination direction in which the plurality of laminated plates are stacked, the first damper chamber is arranged at a height between the pressure chamber and a common liquid chamber. A first support part is provided within the first damper chamber. 
     SELECTED DRAWING: Figure 2 
     COPYRIGHT: (C)2022,JPO&INPIT