baber/WOPTO huggingface dataset:
Patent JP-WO2017077623-A1 (JP)
Title: 情報処理装置、情報処理方法および情報処理プログラム
IPC: A61B5/0245
Filed: 2015-11-05
Abstract: 情報処理装置は、被分析者の心拍数を取得する心拍数取得部と、前記心拍数取得部が取得する心拍数の経時変化から特徴量を抽出する特徴量抽出部と、飲料摂取に係る心拍数の経時変化に関する情報を予め格納する格納部と、前記特徴量抽出部が抽出した特徴量と前記格納部に格納された情報とに基づいて、前記心拍数取得部が取得した心拍数の経時変化が飲料摂取に起因するか否かを判定する判定部と、を備える。
Patent JP-WO2017110425-A1 (JP)
Title: 肝疾患治療剤及び肝疾患を治療する方法
IPC: A61P1/16
Filed: 2016-12-02
Abstract: 本発明は、肝疾患の新規治療剤を提供することを目的とする。本発明は、間質細胞由来の微小粒子を含有する、肝疾患治療剤である。上記微小粒子の平均粒子径は、１，０００ｎｍ以下であることが好ましい。また、本発明の肝疾患治療剤は、上記微小粒子を含有又は分泌する能力を有する間質細胞を含むことが好ましい。
Patent JP-WO2017130498-A1 (JP)
Title: 通信システムおよび通信制御方法
IPC: G06Q30/02
Filed: 2016-10-28
Abstract: 【課題】ユーザの潜在的な要求を引き出して、より効果的な広告情報の提示を行うことが可能な通信システムおよび通信制御方法を提供する。 【解決手段】ユーザのクライアント端末またはサービスの利用状況を収集する通信部と、前記通信部を介して収集した前記ユーザの利用状況に応じて嗜好を分析し、前記嗜の好分析結果に応じて、少なくとも一のユーザが、特定の商材の潜在顧客であると判定すると、前記通信部を介して、前記商材への興味を引き出すための誘導メッセージを、前記クライアント端末のエージェントの発言として出力するよう、当該ユーザのクライアント端末に送信し、送信後、所定のタイミングで、前記通信部を介して前記商材をプロモーションするための広告を前記クライアント端末のエージェントの発言として出力するよう、当該ユーザのクライアント端末に送信するよう制御する制御部と、を備える、通信システム。 【選択図】図１
Patent WO-2018142877-A1 (WO)
Title: 光情報処理装置
Inventor: MOMOO KAZUO
IPC: G11B7/1353
Filed: 2018-01-12
Abstract: 情報記録担体（１０１）に対して情報の記録再生を行う光情報処理装置（１０５）であって、第一の光源（１０６）と、第二の光源（１０７）と、第一の光源（１０６）からの光と第二の光源（１０７）からの光とを情報記録担体（１０１）に集光させる集光素子（１１２）と、情報記録担体（１０１）で反射された第一の光源（１０６）の光を受光し、第一のフォーカシング誤差信号を生成する第一の光検出器（１１３）と、情報記録担体（１０５）で反射された第二の光源（１０７）の光を受光し、第二のフォーカシング誤差信号を生成する第二の光検出器（１１６）と、第一のフォーカシング誤差信号を用いて第二の光源（１０７）の光を情報記録担体（１０１）の記録層（１０４）に集光するよう集光素子（１１２）を制御するフォーカシング制御回路（１１７）とで構成され、第二のフォーカシング誤差信号を用いてフォーカシング制御回路（１１７）に補正を加える。
Patent WO-2019146009-A1 (WO)
Title: Stator and electric motor
Inventor: FUJISUE YOSHIKAZU
IPC: H02K1/18
Filed: 2018-01-24
Abstract: Provided is a stator in which a laminated core has: a coupling part where both ends of a plurality of core blocks are connected, the core blocks being arranged in an annular shape and coupled to one another in series; and a second outer peripheral wall that is formed on the radially inner side with respect to a first peripheral wall constituted by a back yoke in the coupling part. The coupling part has a joint part that, when viewed in the lamination direction, is formed as a part where a recess and a projection are fitted to each other, the joint part having a first edge portion positioned on the outer peripheral side of the laminated core, and a second edge portion positioned on the inner peripheral side of the laminated core, so as to form a V shape with the end thereof protruding in the circumferential direction. The laminated core is configured such that, when viewed in the lamination direction, the angle θ1 formed by the second edge portion of the coupling part and a line L1 connecting between one end of the second outer peripheral wall and a radially inner-side coupling point positioned on a wall surface of the coupling part from which a tooth part of the back yoke protrudes, falls within 90°±5°, and the angel θ2 formed by the first edge portion of the coupling part and a line L2 connecting between the radially inner-side coupling point and the other end of the second outer peripheral wall, falls within 90°±5°.
Patent WO-2018168221-A1 (WO)
Title: 感放射線性組成物及びパターン形成方法
Inventor: NAKAGAWA HISASHI
IPC: G03F7/20
Filed: 2018-01-26
Abstract: 感放射線性組成物の塗布性及び保存安定性に優れる感放射線性組成物及びそれを用いたパターン形成方法の提供を目的とする。本発明は、金属－酸素共有結合を有する化合物と、溶媒とを含有し、上記金属が、周期表第３族～第１５族の第４周期～第７周期のいずれかに属する元素の金属であり、上記溶媒が、２０℃における粘度が１０ｍＰａ・ｓ以下であり、２０℃における蒸気圧が５ｋＰａ以下である第１溶媒と、ファンデルワールス体積が１５０Å３以下であり、上記第１溶媒とは異なる第２溶媒とを含み、上記第２溶媒が、水、Ｒ１－ＯＨで表される１価のアルコール類、Ｒ２－ＣＯＯＨ又はこれらの組み合わせであり、Ｒ１が炭素数１以上４以下の１価の有機基であり、Ｒ２が炭素数１以上３０以下の１価の有機基である感放射線性組成物である。上記第１溶媒の全溶媒中の含有量としては、５０質量％以上９０質量％以下が好ましい。
Patent WO-2018168305-A1 (WO)
Title: パルス管冷凍機及びパルス管冷凍機用のロータリーバルブユニット
Inventor: XU MINGYAO
IPC: F16K11/074
Filed: 2018-02-14
Abstract: パルス管冷凍機１０のロータリーバルブユニットは、ロータリーバルブ３６と逆転可能モータ３８を備える。ロータリーバルブ３６は、逆転可能モータ３８が正転するときパルス管冷凍機１０を冷却するための冷却用バルブタイミングに従って動作し、逆転可能モータ３８が逆転するときパルス管冷凍機１０を加熱するための加熱用バルブタイミングに従って動作する。冷却用バルブタイミングは、パルス管１８内に作動ガス圧力振動を生成するとともに、作動ガス圧力振動に対しパルス管１８内での作動ガス変位振動に第１位相遅れを与えるよう設計される。加熱用バルブタイミングは、パルス管１８内に作動ガス圧力振動を生成するとともに、作動ガス圧力振動に対しパルス管１８内での作動ガス変位振動に第２位相遅れを与えるよう設計される。第２位相遅れは、第１位相遅れと異なる。
Patent WO-2018174004-A1 (WO)
Title: 光ファイバケーブル
Inventor: SATO FUMIAKI
IPC: G02B6/44
Filed: 2018-03-19
Abstract: 従来のケーブルに比べ、布設しやすく且つ高密度実装を達成可能な、光ファイバケーブルを提供する。複数本の光ファイバ心線、または複数本の光ファイバ心線を並べたテープ心線が集められて撚られてなる光ユニット（３０）と、光ユニットを収納するケーブルコア（１１）と、ケーブルコアの周囲に設けられたケーブル外被（１２）と、を備えたスロットレス型の光ファイバケーブル（１０）であり、ケーブルコア内に、繊維体からなるテンションメンバ（３１）を備える。
Patent WO-2018211867-A1 (WO)
Inventor: SEO TAKESHI
IPC: B25J15/12
Filed: 2018-04-11
Abstract: A workpiece gripping device (10) includes a gripping member (20) and a holding member (22). The gripping member (20) includes a pair of extension parts (26) that protrude from a base part (24) and face each other with a space therebetween where the plate-shaped part (Wp) of the workpiece (W) can be inserted, and is deformable so that at least parts of the extension parts (26) approach each other or are separated from each other. The holding member (22) includes a slit (32) for holding the gripping member (20) slidably along a direction in which the extension parts (26) protrude, can make the extension parts (26) approach each other by housing at least parts of the extension parts (26) in the slit (32), and can make the extension parts (26) be separated from each other by projecting at least parts of the extension parts (26) from the slit (32).
Patent WO-2018190436-A1 (WO)
Title: Module de source de particules chargées
Inventor: DINU-GÜRTLER LAURA
IPC: H01J37/065
Filed: 2018-04-10
Abstract: L'invention concerne un module de source de particules chargées pour générer et émettre un faisceau de particules chargées, tel qu'un faisceau d'électrons, comprenant: un cadre comprenant une première partie de cadre, une seconde partie de cadre, et un ou plusieurs éléments de support rigides qui sont agencés entre ladite première partie de cadre et ladite seconde partie de cadre; un agencement de source de particules chargées pour générer un faisceau de particules chargées, tel qu'un faisceau d'électrons, ledit agencement de source de particules chargées, tel qu'une source d'électrons, étant agencé au niveau de ladite seconde partie de cadre; et un ensemble de connexion électrique disposé au niveau de ladite première partie de cadre, ledit agencement de source de particules chargées étant électriquement connecté audit ensemble de connexion par l'intermédiaire d'un câblage électrique.
Patent WO-2018207685-A1 (WO)
Title: 接合用アルミニウム塗装材及びアルミ樹脂複合材
Inventor: TAKASAWA REIKO
IPC: B32B15/04
Filed: 2018-05-01
Abstract: 表面に接着層を有し、ノンクロムでありながら過酷な使用条件下においても優れた密着強度及び耐食性能を発揮し得る接合用アルミニウム塗装材を提供し、また、この接合用アルミニウム塗装材を製造可能なアルミニウム塗装材を提供し、更に、この接合用アルミニウム塗装材を用いたアルミ樹脂複合材を提供する。　アルミニウム材の表面に形成されたシリカ含有皮膜が、シランカップリング剤０．５～３５質量%、Ｓi含有量２～６０mg/m2、及びＰ含有量０．１～６．０mg/m2であると共に、Ｐ含有量とＳi含有量とのP/Si質量比が０．０２～０．１５の範囲内であり、表面に接着層を有する接合用アルミニウム塗装材、また、この接合用アルミニウム塗装材を製造可能なアルミニウム塗装材、更にこの接合用アルミニウム塗装材を用いて得られるアルミ樹脂複合材である。
Patent WO-2019215887-A1 (WO)
Inventor: MURAYAMA DAISUKE
IPC: H04W16/14
Filed: 2018-05-10
Abstract: 本願の無線基地局は、下り制御情報を送信する送信部と、前記下り制御情報によりスケジューリングされるデータの送信により干渉を受ける装置と、前記データの送信装置に対して干渉を与える装置からのデータの宛先装置との関係に基づいて、前記データのスケジューリングを制御する制御部と、を具備する。
Patent WO-2018221238-A1 (WO)
Title: 無線機器および無線機器の処理方法
Inventor: ITAGAKI TAKESHI
IPC: H04W56/00
Filed: 2018-05-17
Abstract: 相手機器との間で同期対象クロックが正しく同期できたかを当該相手機器に効率よく伝える。　無線機器は、メイン制御部と、無線制御部と、クロック同期管理部を備える。メイン制御部は、第１のクロック（同期対象クロック）で時刻が管理される。無線制御部は、第２のクロック（参照クロック）で時刻が管理される。同期管理部により、クロック同期の状況が管理される。無線接続された他の無線機器に、クロック同期の状況に関する情報をフレームの送信により通知する。
Patent WO-2019003850-A1 (WO)
Title: Image processing device and method
Inventor: TAKAHASHI RYOSUKE
IPC: H04N5/92
Filed: 2018-06-07
Abstract: This image processing device for processing image data obtained by an imaging device has: an output means for outputting the image data obtained by the imaging device and maximum luminance information, that is, information for indicating a maximum luminance of the image data, to an external device; an acquisition means for acquiring a maximum luminance that can be handled by the imaging device; and a control means for controlling the output means to output the maximum luminance acquired by the acquisition means as the maximum luminance information.
Patent WO-2019003868-A1 (WO)
Title: Header tank for heat exchanger
Inventor: KATOU MASAHIRO
IPC: F28F9/02
Filed: 2018-06-08
Abstract: This header tank (20) is provided with: an introducing part (23) which is provided on one end (21) side of a header tank (20) so as to be shifted toward any one side wall (22) among two side walls (22, 25), and introduces a heat exchange fluid to the header tank (20); first ribs (25a, 25b) which are provided on the side wall (25) which, among the two side walls (22, 25), is the side wall (25) along which the heat exchange fluid introduced from the introducing part (23) flows, wherein the first ribs (25a, 25b) protrude inside the header tank (20) and the distance between the first ribs (25a, 25b) and a core (10) decreases toward the other end (26) of the header tank (20); and second ribs (22a, 22b) which are provided on the other side wall (22) which, among the two side walls (22, 25), is the side wall (22) side along which the heat exchange fluid returning toward the one end (21) side of the header tank (20) after passing through the other end (26) side of the header tank (20) flows, wherein the second ribs (22a, 22b) protrude inside the header tank (20) and the distance between the second ribs (22a, 22b) and the core (10) decreases toward the one end (21) of the header tank (20).
Patent WO-2019026430-A1 (WO)
Title: In-room unit of air conditioning device
Inventor: HARADA SHINSUKE
IPC: F28D1/047
Filed: 2018-06-12
Abstract: The purpose of the present invention is to provide an in-room unit of an air conditioning device with which it is possible to inhibit condensate water produced on the surfaces of fins and heat transfer tubes from being scattered into the air. Fins (47, 57, 67) of in-room heat exchangers (40, 50, 60) are configured from porous metals having three-dimensional mesh structures that have a three-dimensionally continuous framework structure (B) and that form a plurality of three-dimensionally continuous air holes (H) due to the framework structure (B).
Patent WO-2019053994-A1 (WO)
Title: Audio processing device and audio processing method
Inventor: HAYASHI SHIGETOSHI
IPC: G10K11/178
Filed: 2018-06-22
Abstract: [Problem] To propose a configuration capable of noise-cancelling on the basis of more suitable information. [Solution] An audio processing device comprising: three audio input units arranged near one of a user's ear with the input units attached to the user; a signal processing unit that generates a plurality of noise-cancellation signals on the basis of three audio signals generated by the three audio input units, and generates an output signal on the basis of the plurality of noise-cancellation signals generated; and an audio output unit that outputs audio on the basis of the output signal.
Patent WO-2019031089-A1 (WO)
Title: Imaging device
Inventor: YAMASHITA HIROFUMI
IPC: H01L27/146
Filed: 2018-06-27
Abstract: Provided is an imaging device provided with an imaging unit having a plurality of pixels, wherein each of the pixels includes: a conversion element that converts incident light into a photoelectron; a floating diffusion layer which is electrically connected to the conversion element and which converts the photoelectron into a voltage signal; a differential amplifier circuit that is for amplifying the potential of the floating diffusion layer, that is electrically connected to the floating diffusion layer, and that includes an amplifier transistor to which the potential of the floating diffusion layer is inputted; a feedback transistor that is electrically connected to the amplifier transistor and that initializes the differential amplifier circuit; a clamp capacitor that is serially connected between the floating diffusion layer and the amplifier transistor; and a reset transistor that is connected in parallel between the floating diffusion layer and the clamp capacitor and that initializes the potential of the floating diffusion layer.
Patent WO-2019009209-A1 (WO)
Title: Optical measuring device, light guide member, and optical measuring method
Inventor: OKI YUJI
IPC: G01N21/59
Filed: 2018-06-29
Abstract: The objective of the present invention is to provide an optical measuring device and the like which enable an increase in a measurement S/N ratio even if a sample is not completely covered by a housing. The means of overcoming the problem according to the present invention is an optical measuring device for measuring light from a sample, provided with: a container void for accommodating a container in which the sample is enclosed; a light detecting unit which detects light from the sample; a light guide path which guides the light from the sample to the light detecting unit; and a light absorbing unit which absorbs incident light; wherein an incident end of the light guide path faces the container void, an exit end of the light guide path faces the light detecting unit, the light absorbing unit covers the perimeter of the light guide path other than the incident end and the exit end thereof, and a ratio of the square root of a surface area (A) of the incident end to a distance (L) from the incident end to the exit end is at most equal to 0.2.
Patent WO-2020012648-A1 (WO)
Inventor: HAYASHI YOSHIHIRO
IPC: F02B39/00
Filed: 2018-07-13
Abstract: インペラと、インペラに空気を案内するコンプレッサ入口管と、インペラの外周側に設けられたスクロール流路と、インペラを迂回してコンプレッサ入口管とスクロール流路とを接続するバイパス流路と、を備え、コンプレッサ入口管の軸心に直交する断面において、コンプレッサ入口管の内壁面とバイパス流路の内壁面との接続箇所のうちインペラの回転方向における下流側の接続箇所をＡ１、コンプレッサ入口管の内壁面を構成する仮想円をＣ、接続箇所Ａ１における仮想円Ｃの接線をＬ１とすると、バイパス流路の内壁面は、接続箇所Ａ１から接線Ｌ１に沿って形成される。
Patent WO-2019044264-A1 (WO)
Title: Gaze analysis system, gaze analysis method, and training method
Inventor: SHINODA MASAYUKI
IPC: G09B19/00
Filed: 2018-07-20
Abstract: A gaze analysis system comprises: a storage unit for storing an image for analysis produced by using image data captured via an eyepiece; a display unit for displaying the image for analysis; a gaze detection unit for detecting the gaze of a subject viewing the image for analysis presented on the display unit; and an output unit that outputs image data resulting from the analysis where the image for analysis and the subject's gaze are superimposed.
Patent WO-2020026338-A1 (WO)
Title: Vane pump device
Inventor: Taga naoya
IPC: F04C2/344
Filed: 2018-07-31
Abstract: This vane pump device comprises: a rotor that rotates while supporting a plurality of vanes to be movable in a turning radius direction; and a cam ring that has an inner peripheral surface facing an outer peripheral surface of the rotor. As the distance from the rotation center of the rotor to the inner peripheral surface of the cam ring changes in accordance with the rotation angle of the rotor, the volume of a pump chamber changes in accordance with the rotation angle, whereby the vane pump device transitions to a suction step and an ejection step. A starting-point angle, which is the rotation angle at which the distance starts increasing after sections having the same distance have extended over a prescribed rotation angle, is in a range from a position which is located on an upstream side in a rotation direction with respect to a central angle and at which the proportion of a rotation angle difference between the starting-point angle and the central angle with respect to the interval of the rotation angle between two vanes is 0.07, to a position which is located on a downstream side in the rotation direction with respect to the central angle and at which the proportion is 0.19, wherein the central angle is a central rotation angle between a rotation angle at which a downstream side end of an ejection port for ejecting oil from the pump chamber in the ejection step is formed and a rotation angle at which an upstream side end of a suction port for suctioning the oil into the pump chamber in the suction step is formed.
Patent WO-2020031284-A1 (WO)
Title: Elevator diagnosis system
Inventor: NISHIE SATOSHI
IPC: B66B3/02
Filed: 2018-08-08
Abstract: In the past, since a control signal for an elevator is required for measuring the landing position of an elevator such as a relay-type elevator from which a meaningful control signal cannot be acquired, measurement or diagnosis for the landing position cannot be performed. Thus, an elevator diagnosis system of the present invention includes: a landing door detection unit which is provided in a car door of a car and detects a landing door; an acceleration measurement unit which is provided in the car door and measures acceleration; and a moving amount measurement unit which measures, as a landing position, a moving amount of the car, which moves from a time when the landing door detection unit detects the landing door after the acceleration measurement unit detects deceleration of the car to a time when the car door opens; and an abnormality diagnosis unit which diagnoses, on the basis of the moving amount, a landing abnormality of the car, wherein, even when an elevator system from which a meaningful control signal cannot be acquired is taken as a diagnosis target, the abnormality can be detected when a landing error is extended due to deterioration over time, etc.
Patent WO-2019064965-A1 (WO)
Title: Cover structure for saddle-type vehicle
Inventor: SHINDE YASUO
IPC: B62J99/00
Filed: 2018-08-10
Abstract: The purposes of the present invention are: to configure a cover member, and a vehicle body functional component which is covered by the cover member as a portion of the design of a vehicle, to improve design properties; and to cover the vehicle body functional component with the cover member. This cover structure for a saddle-type vehicle is provided with: an air cleaner 36 provided below a main frame 16; and a cover member 50 which covers the air cleaner 36. The air cleaner 36 is provided with: an air cleaner box body 60; and a lid member 61 which is fixed to the front surface of the air cleaner box body 60 by being clamped in the front-rear direction. The lid member 61 has, provided to left and right side parts, step parts which are recessed rearwards. The cover member 50 is provided as a pair of left and right members and is attached to the air cleaner 36 such that the air cleaner 36 is covered from the sides. The cover member 50 has, provided to the front end, an inward extending part 85 which extends inwards in the vehicle width direction. The inward extending part 85 is fitted into the step parts of the lid member 61. The lid member and the front surface of the inward extending part 85 are flush with each other.
Patent WO-2019044695-A1 (WO)
Title: Standing assistance device and wheelchair to which same is attached
Inventor: MASAKI SADAO
IPC: A61G5/14
Filed: 2018-08-24
Abstract: [Problem] To provide a standing assistance device and a wheelchair to which the same is attached, with which it is possible to safely provide assistance in a standing operation and a seating operation without allowing a user to slip out of a seat. [Solution] A standing assistance device 10 comprises: a body frame 16 that is removably installed on a seat surface 14 with engaging parts 34, 48 interposed therebetween; a seat 18 provided on the body frame 16, a front seat part 60 and a rear seat part 62 being coupled by a hinge 22, and the front end of the front seat part 60 being supported by the front end of the body frame 16 so as to be capable of rotating upward and downward; a seat movement mechanism 20 that causes the seat 18 to rotate upward and downward by imparting rotational force at the center of the lower surface of the rear seat part 62, thereby causing the seat 18 to move between a seating position and an upright position; an anti-reverse-rotation member 24 that prevents the seat 18 from rotating in reverse; and a rear-seat-part forward-inclination adjustment means 26 that adjusts the degree of forward inclination of the rear seat part 62 when the seat 18 is rotated from the seating position to the upright position.
Patent WO-2019044950-A1 (WO)
Title: Power transmission device
Inventor: OZAWA YOSHIHIKO
IPC: F16D43/12
Filed: 2018-08-30
Abstract: Provided is a power transmission device with which, when a pressure member is in an inactive position, rotational force in vehicle wheels can be transmitted to an engine to induce engine braking by bringing a drive-side clutch plate and a driven-side clutch plate into pressed contact, and the action caused by a weight member when engine braking is induced can be performed in a stable manner. The power transmission device has a back torque transmission cam that can move a second clutch member 4b to bring a drive-side clutch plate 6 and a driven-side clutch plate 7 into pressed contact when rotational force is inputted to a first clutch member 4a via an output shaft 3 while a pressure member 5 is in an inactive position. The back torque transmission cam can move the second clutch member 4b toward an interlocking member 9 to maintain contact between the interlocking member and a weight member 8.
Patent WO-2020049716-A1 (WO)
Inventor: MIYAMORI SHUN
IPC: H02P27/06
Filed: 2018-09-07
Abstract: La présente invention concerne un dispositif de commande de moteur électrique (42), comprenant : une carte de circuit principal (31) sur laquelle est monté un circuit de source d'alimentation pour générer une puissance d'attaque qui commande un moteur de compresseur (41), sur la base d'une puissance en courant alternatif fournie par une source d'alimentation en courant alternatif (11) ; une pluralité de relais de commutation de connexion (46, 47, 48) pour commuter les connexions du moteur de compresseur (41) ; une carte de circuit secondaire (32) sur laquelle les relais de commutation de connexion (46, 47, 48) sont montés ; un circuit d'attaque de relais (23) pour commuter les relais de commutation de connexion (46, 47, 48) ; des fils de sortie (24, 25) qui connectent le moteur de compresseur (41) et la carte de circuit secondaire (32) au circuit de source d'alimentation électrique ; et des fils de sortie (26, 27) qui connectent la carte de circuit secondaire (32) au moteur de compresseur (41).
Patent WO-2019065282-A1 (WO)
Title: Object detection device
Inventor: SUZUKI YOHEI
IPC: G01S7/524
Filed: 2018-09-13
Abstract: This object detection device is provided with: transmission units (3, 4) which transmit ultrasonic waves as probe waves; reception units (3, 7) which receive the ultrasonic waves and output a signal; a distance detection unit (9) which detects the distance to an object on the basis of the output signal of the reception units (3, 7) when the frequency of the ultrasonic waves received by the reception units (3, 7) changes in the same manner as the frequency of the probe waves; and a transmission sound pressure adjustment unit (12) which adjusts the sound pressure of the probe waves such that the sound pressure of the probe waves or reflection waves of the probe waves is within a predetermined transmission target range. The transmission units (3, 4) transmit, as probe waves, first probe waves having a frequency that changes with time and second probe waves having a frequency that changes with time at a rate of change different from that of the first probe waves, and the transmission sound pressure adjustment unit (12) ensures that the sound pressure of the first and second probe waves or reflection waves of the first and second probe waves is within the transmission target range.