baber/WOPTO huggingface dataset:
Patent JP-2022534177-A (JP)
Title: 直線移動を生成させるためのシステム
IPC: H02K33/06
Filed: 2019-04-05
Abstract: 本発明は、一般に、主方向に沿って自由に移動する電磁荷電体（３０、ＭＭ）と、静磁場発生器（５０、Ｂｏｂ）と、２つのバッファ要素（２０、４０；ＲＭ、ＲＭ；ＭＬ、ＭＬ；ΜΑ，ΜΑ；ＭＦ、ＭＦ）とを備える、直線移動を生成させるためのシステムに関する。電磁荷電体（３０、ＭＭ）の主方向に沿った移動は、静磁場発生器（５０、Ｂｏｂ）およびバッファ要素（２０、４０；ＲＭ、ＲＭ；ＭＬ、ＭＬ；ΜΑ，ΜΑ；ＭＦ、ＭＦ）によって制御される。静磁場発生器（５０、Ｂｏｂ）には、前記主方向に沿った向きのうちの１つでシステムの変位を生成するような電力プロファイルで交互に電力供給される。【選択図】図１９
Patent JP-2022530400-A (JP)
Title: 有線ローカルエリアネットワーク内のマスタノードの移行、並びに関連するシステム、方法、及びデバイス
IPC: H04L12/40
Filed: 2020-01-22
Abstract: 様々な実施形態は、共有伝送媒体（例えば、１０ＳＰＥネットワーク）を含む有線ローカルエリアネットワーク（ＷＬＡＮ）に関する。方法は、物理レベルの衝突回避（ＰＬＣＡ）を含むＷＬＡＮ内のイベントを検出するステップを含み得る。この方法はまた、イベントに応答して、ＷＬＡＮのマスタとして動作する第１のノードのビーコンを無効化するステップを含み得る。更に、この方法は、第２のノードがＷＬＡＮのマスタとして動作するように有効化するステップを含み得る。【選択図】図９
Patent JP-2022528011-A (JP)
Title: 視覚メディアのキャプチャ及び管理用ユーザインタフェース
IPC: G03B15/00
Filed: 2020-05-06
Abstract: メディアをキャプチャする（例えば、写真をキャプチャする、ビデオを記録する）、メディアを表示する（例えば、写真を表示する、ビデオを再生する）、メディアを編集する（例えば、写真を修正する、ビデオを修正する）、メディアコントロール又は設定にアクセスする（例えば、写真若しくはビデオをキャプチャするビデオをキャプチャするコントロール又は設定にアクセスする）、メディアを自動的に調整する（例えば、写真を自動的に修正する、ビデオを自動的に修正する）、及び１組の条件に基づいてメディアキャプチャモード（例えば、写真メディアキャプチャモード、ポートレートメディアキャプチャモード、ビデオメディアキャプチャモード）を自動的に管理するためのユーザインタフェースを含む、メディアユーザインタフェースが記載されている。【選択図】図６Ｂ
Patent JP-2022532559-A (JP)
Title: 汚染防止物質としてのアグリモニー抽出物
IPC: A61K36/73
Filed: 2020-05-06
Abstract: 本発明は、汚染防止物質としてのアグリモニー抽出物の使用およびこの抽出物を含有する組成物に関する。
Patent JP-2022520901-A (JP)
Title: マッシブｍｉｍｏ通信のための方法、基地局、システム及びコンピュータプログラム
IPC: H04B7/06
Filed: 2020-04-01
Abstract: 本発明は、マッシブＭＩＭＯ通信の方法に関し、この方法は、基地局ＢＳによって、特権的チャネル方向を有する送信ビームセットΦを形成することと、特権的チャネル方向外へのチャネル方向変化を検出するように、送信ビームセットを最適化するための追加のビームセットΘを設計することとを含む。
Patent JP-2022536468-A (JP)
Title: 一方向連続繊維強化熱可塑性複合材料の製造方法及び設備
IPC: B29C70/54
Filed: 2020-07-27
Abstract: 開放型ホットメルト樹脂と繊維熱溶融塗布のプロセス設計を採用し、押出機により可塑化して溶融した樹脂が設定されたダイヘッドを経て前記ホットメルト樹脂塗布ガイドローラに輸送され、ホットメルト樹脂塗布ガイドローラのローラ面に厚さが均一なホットメルト樹脂膜層が形成され、ホットメルト樹脂塗布ガイドローラの設定された回転によりホットメルト樹脂がガイドローラのローラ面に沿って連続的に進行して均一に展開された一列の繊維体に連続的で均一に塗布され、ホットメルト樹脂が塗布された均一に展開された一列の繊維が多段階で平行交互に直列配置された開放型連続繊維とホットメルト樹脂ロールプレス浸漬塗布装置を連続的に経て、ホットメルト樹脂と繊維との効率的な融合が完成し、ホットメルト樹脂と繊維が効率的に融合した複合体が主牽引の駆動力の作用下で冷却、定型装置を連続的に経て巻き取られて一方向連続繊維強化樹脂複合材料を形成する一方向連続繊維強化樹脂複合材料の製造設備及び方法。【選択図】図４
Patent JP-2022536628-A (JP)
Title: 固体非イオン性界面活性剤組成物
IPC: C11D1/72
Filed: 2020-06-22
Abstract: 【課題】本発明は、液体非イオン性界面活性剤を、結合剤、担体、または結合剤および担体の両方により固化して、固化界面活性剤組成物を形成することに関する。【解決手段】具体的には、本発明は、乾燥デバイスを利用する液体非イオン性界面活性剤の固化に関し、供給組成物が、固化界面活性剤組成物を形成するために、少なくとも１つの液体非イオン性界面活性剤、および結合剤、担体、または結合剤と担体とを含有する。固化界面活性剤組成物は、様々な洗浄組成物において有用であり得る。【選択図】なし
Patent JP-2022543965-A (JP)
Title: ワクシニアウイルスによって炎症を起こしたウサギ皮膚由来の抽出物のがん治療における使用
IPC: A61P27/16
Filed: 2019-06-14
Abstract: 本発明はワクシニアウイルスによって炎症を起こしたウサギ皮膚由来の抽出物の治療における使用に関する。より具体的には、本発明は前記抽出物のがんの予防または治療における使用に関する。本発明はまた、前記抽出物の患者における体細胞を刺激してサイトカインを分泌させる使用に関する。さらに、本発明は一種の薬剤の組み合わせおよびそのがんの予防または治療における使用にも関し、当該薬剤の組み合わせは、第一の抗がん剤としての前記抽出物および第二の抗がん剤を含む。
Patent JP-2022539007-A (JP)
Title: 空間制御されるプラズマ
IPC: H05H1/24
Filed: 2020-07-03
Abstract: プラズマ送達装置は、送達装置の外面に設けられたプラズマ源を備え、外面は、処置すべき基板に対向する配置とされ、輸送機構が、基板および外面を互いに対して輸送する構成とされ、プラズマ源は、プラズマ生成空間へガス流を提供するためのガス入口を備え、プラズマ生成空間は、外面に配置された少なくとも１つのプラズマ送達ポートに流体結合され、プラズマ生成空間は、作用電極および対向電極の外面にて制限され、作用電極は、誘電体層を備え、少なくとも１つのプラズマ排出ポートが、前記プラズマ排出ポートを介して外面に沿って流れるプラズマを排出するように、プラズマ送達ポートから距離をあけて、外面に設けられ、前記少なくとも１つのプラズマ送達ポートおよび少なくとも１つのプラズマ排出ポートは、各々少なくとも２つの作用電極のうちのそれぞれの作用電極にて生成された反対の方向に流れる少なくとも２つの連続プラズマ流を提供するように配置され、スイッチ回路が、少なくとも２つの作用電極へ電圧を切換可能とし、スイッチ回路は、輸送機構とともに動作する。【選択図】 図１Ａ
Patent JP-2023033066-A (JP)
Title: Semiconductor device
Inventor: KATO HIROMI
IPC: H01L29/417
Filed: 2022-01-04
Abstract: To provide a semiconductor device capable of improving characteristics.SOLUTION: According to an embodiment, a semiconductor device includes first to third electrodes, a semiconductor member, a first conductive member, first and second insulation members, and a first nitride member. The first nitride member includes a first nitride region. The first nitride region is located between a first insulation portion and a second insulation portion of the second insulation member in a first direction. The first nitride region is located between a third portion of a second conductor portion of a second semiconductor region and a second conductive region of the first conductive member in a second direction.SELECTED DRAWING: Figure 1
Patent JP-2023102889-A (JP)
Title: game machine
Inventor: INOUE KOJI
IPC: A63F7/02
Filed: 2022-01-13
Abstract: To improve the visibility of identification information.SOLUTION: A game machine comprises lottery means for performing a lottery for giving profits to a player, and display means for displaying identification information for notifying a player of a lottery result by the lottery means. The identification information includes a main body forming numbers or letters, a first contour portion formed outside the outer edge of the main body with a predetermined width, and a second contour portion formed outside the outer edge of the first contour portion. The area surrounded by the edge of the main body can be formed only by the first contour portion.SELECTED DRAWING: Figure 14
Patent JP-2023061868-A (JP)
Title: Ground excavation method
IPC: E21B6/04
Filed: 2022-01-18
Abstract: PROBLEM TO BE SOLVED: To provide a ground excavation ground drilling equipment capable of reducing the work period for excavating the bedrock layer. 
     SOLUTION: The ground drilling equipment is for excavating a bedrock layer Gb in which a casing 2 is press-inserted while being rotated with a circumference rotating device 1, and after reaching the bedrock layer Gb that the ground G includes, the ground G in the casing 2 is excavated with a hammer grab 3. With the circumference rotating device 1 installed as it is, the hammer grab 3 is pulled out from inside the casing 2, a table machine 4 is placed on the top of casing 2 by fitting the male joint 4a provided at the bottom of the table machine 4 corresponding to the female joint 2a provided at the top of the casing 2 to the female joint 2a and the down-the-hole hammer 7 is inserted into the casing 2. By rotating the down-the-hole hammer 7 with the table machine 4 instead of the circumference rotating device 1, the bedrock layer Gb is excavated to a predetermined depth with the down-the-hole hammer 7. 
     SELECTED DRAWING: Figure 1 
     COPYRIGHT: (C)2023,JPO&INPIT
Patent JP-2023065288-A (JP)
Title: Information processing program and information processing system
Inventor: WATANABE YASUHITO
IPC: A63F13/86
Filed: 2022-01-19
Abstract: To realize two-way communication using avatars in video streaming.SOLUTION: A captured video data obtained by capturing video of a streamer is displayed in a streamer display area, an operable streamer avatar is displayed in a streamer avatar display area on the basis of input operation information from the streamer, a user avatar associated with each user who receives and watches the video streaming and is operable on the basis of the user's input operation information is displayed in a user avatar display area, and a video streaming screen including the streamer display area, the streamer avatar display area, and the user avatar display area is transmitted to a terminal that receives video streaming.SELECTED DRAWING: Figure 3
Patent JP-2023108716-A (JP)
Title: piezoelectric actuator
Inventor: ONO SHUTO
IPC: H02N2/04
Filed: 2022-01-26
Abstract: To provide a piezoelectric actuator that can transmit vibration to a drive object without reducing the vibration efficiency of a piezoelectric element.SOLUTION: A piezoelectric actuator 100 comprises: a piezoelectric element 1 that has a piezoelectric element body 2 and an external electrode 6 arranged on the piezoelectric element body 2; a wiring member 40 connected with the external electrode 6; a housing 80 that has an arrangement surface 82s on which the piezoelectric element 1 is arranged via the wiring member 40; and a first support member 50 and a second support member 60 that support the piezoelectric element 1. The arrangement surface 82s includes: a first region R1 abutting on the wiring member 40; and a second region R2 provided so as to correspond to the external electrode 6, not abutting on the wiring member 40.SELECTED DRAWING: Figure 3
Patent JP-2023109263-A (JP)
Title: air sterilizer
Inventor: WATANABE YOSUKE
IPC: A61L9/20
Filed: 2022-01-27
Abstract: To provide an air sterilizer capable of sterilizing air in a space evenly, being equipped with illuminating and insect-capturing functions, and generating an aroma.SOLUTION: When a fan device 17 is driven, outside air is captured through a notch 7 and a hole 9 into an installation case 3, and blown out through an air outlet 15. The air blown out through the air outlet 15 is introduced into a cylindrical body 37, and discharged from an upper end side opening 38 through the cylindrical body 37. During the passage of the air through the cylindrical body 37, the air is sterilized by means of ultraviolet light emitted from an LED 27. Thus, the air is forcibly introduced into the cylindrical body 37 by the fan device 17, sterilized, and then discharged. As air in space is sequentially sterilized through continuous execution of such an operation, the air in the space can be sterilized evenly.SELECTED DRAWING: Figure 2
Patent JP-2022132125-A (JP)
Title: Injection molded article and method for producing the same
Inventor: HAMADA HIROYUKI
IPC: B29C45/00
Filed: 2022-01-31
Abstract: To provide an injection molded article which is excellent in transparency, rigidity at a high temperature, long-term tensile creep characteristics, degradation resistance to a repeated load, wear resistance at 150°C, low chemical liquid permeability, heat distortion resistance after chemical liquid immersion and swelling resistance to a chemical liquid and is significantly improved in ozone resistance.SOLUTION: There is provided an injection molded article having a copolymer containing a tetrafluoroethylene unit and a fluoro(alkyl vinyl ether) unit, wherein the content of the fluoro(alkyl vinyl ether) unit of the copolymer is 3.9 to 4.8 mass% based on the total monomer units, the melt flow rate at 372°C of the copolymer is 11.0 to 19.0 g/10 min, the melting point of the copolymer is 296 to 305°C and the amount of fluorine ions eluted from the injection molded article into water is 7500 μg/m2 or less.SELECTED DRAWING: None
Patent JP-2023112247-A (JP)
Title: Rental Sales Profit Prediction System, Rental Sales Profit Prediction Method, and Program
Inventor: HANAWA NAOYUKI
IPC: G06Q30/0645
Filed: 2022-02-01
Abstract: To predict future sales and/or profit obtained when continuing the rental of an article, by reflecting a state of the article after rental returning.SOLUTION: A rental sales profit prediction system comprises: a storage management unit which receive a rental article from a cargo owner to store and manage it; a first acquisition unit which acquires article information about the stored and managed rental article, and rental information about the rental of the rental article; a delivery unit which arranges delivery of the stored and managed rental article, to a user who rents the article; a receiving unit which receives the rental article returned from the user, after the rental end; a second acquisition unit which acquires inspection information obtained by inspecting the received rental article; and a prediction unit which predicts future sales and/or profit obtained when continuing the rental of the rental article, on the basis of the acquired article information, the rental information, and the inspection information.SELECTED DRAWING: Figure 1
Patent JP-2023112743-A (JP)
Title: Brush and cleaner
Inventor: TAKAI TSUTOMU
IPC: A46B7/08
Filed: 2022-02-02
Abstract: To provide a brush capable of preventing a bristle material from spreading radially to cause bristle strength to be weakened, and burrs and dust from gathering between bristle materials.SOLUTION: A brush 10 has: a brush table 1; a plurality of brush bundles 2a which is inserted into implanting holes 1b, folded into two, and extended with both end sides outward; a rod-shaped shaft 3 inserted into an axial hole 1a of the brush table 1; and almost disc-shaped flanges 4a, 4b which are connected to the shaft 3 and grip and fix the brush bundles 2a, 2b from both side surface sides of the brush table 1. The brush bundles 2a, 2b have binding parts 6 where both sides of the folding parts 5 folded into two are bound with elastic members 6a, 6b. When the brush 10 is seen from a flange 4a side in a plan view, the brush bundles 2a, 2a or 2a, 2b of the brush table 1 have, at least on an end side beyond at least the binding parts 6, intermittent parts 7 where adjacent brush bundles 2a, 2a or 2a, 2b do not contact each other and are formed into radial shapes.SELECTED DRAWING: Figure 2
Patent JP-2023115736-A (JP)
Title: Automobile
Inventor: MONNA HIROSHI
IPC: B60L15/20
Filed: 2022-02-08
Abstract: To lower an output upper limit value of a motor when vibration of an automobile continues for a long time, but not to lower the output upper limit value in the case of transient vibration.SOLUTION: An automobile disclosed herein includes: a motor configured to drive a wheel; and a controller configured to control the motor. The controller extracts vibration data in a predetermined frequency band including a resonance frequency of a drive system including the motor, from time series data of the rotational speed of the motor. The controller lowers an output upper limit value of the motor from a normal upper limit value to a protection upper limit value when the time integrated value of a vibration amplitude during a period from the present to a time prior to a first monitoring time, which is included in the vibration data, exceeds an integrated value threshold, and a front-rear wheel speed difference or a vibration amplitude of a wheel speed exceeds a predetermined threshold during a period from the present to a time prior to a second monitoring time.SELECTED DRAWING: Figure 2
Patent JP-2023115865-A (JP)
Title: Paper processor
Inventor: MIKAMI TOYA
IPC: G07D11/10
Filed: 2022-02-08
Abstract: To provide a paper processor that smoothly feeds paper retained on a drum.SOLUTION: A paper processor 10 includes a tentative retention unit 18 that retains paper S by winding the paper S about a drum 31 together with tape 30 and feeds the retained paper S. The tentative retention unit 18 includes a scraper 32 that separates the paper S, which is accommodated in the drum 31, from the drum 31, and an impeller 331 that is provided integrally with the scraper 32 and peels off the paper S, which is fed from the drum 31, from the drum 31, and hands the paper to the scraper 32.SELECTED DRAWING: Figure 12
Patent JP-2023116089-A (JP)
Title: Substrate processing apparatus and monitoring method
Inventor: SHIMIZU SHINJI
IPC: H01L21/304
Filed: 2022-02-09
Abstract: To provide a technique capable of monitoring a monitoring object with high accuracy by suppressing influence of unnecessary reflection light.SOLUTION: A substrate processing apparatus 100 comprises: a chamber 10; a substrate holding part 20; an illumination part 71; a polarization filter 73; a filter driving part 74; a camera 70; and a control part 9. The illumination part 71 irradiates an imaging region including a monitoring object in the chamber 10 with illumination light. The filter driving part 74 rotates the polarization filter 73 to the rotation position according to the monitoring object in the imaging region and reduces unnecessary reflection light according to the monitoring object with the polarization filter 73. The camera 70 images the imaging region through the polarization filter 73 to generate photographed image data. The control part 9 controls the filter driving part 74 and monitors the monitoring object on the basis of photographed image data generated by the camera 70.SELECTED DRAWING: Figure 3
Patent JP-2023116125-A (JP)
Title: Measuring apparatus
Inventor: HAYASHI YUKIO
IPC: G01S7/481
Filed: 2022-02-09
Abstract: To provide a measuring apparatus capable of improving resolution.SOLUTION: A measuring apparatus comprises a light emission section including a light-emitting element emitting light to an object, and a light receiving element receiving light of the light emission section reflected by the object. An instant angle of view in a first direction of the light-emitting element is smaller than an instant angle of view in the first direction of the light receiving element.SELECTED DRAWING: Figure 5
Patent JP-2023118375-A (JP)
Title: Failure monitoring device, information processing system, failure monitoring method, and program
Inventor: ARAI HIROTAKA
IPC: G06F11/07
Filed: 2022-02-15
Abstract: To enable fencing to be applied to container orchestration.SOLUTION: A failure monitoring device includes: failure monitoring means for determining presence or absence of occurrence of a failure in a container being an execution environment of an application program; input/output control means for interrupting access to a storage device from a container in which occurrence of a failure is detected by the failure monitoring means.SELECTED DRAWING: Figure 1
Patent JP-2023119719-A (JP)
Title: Imaging apparatus and method for controlling the same
Inventor: JIKYO KAZUTO
IPC: H04N23/76
Filed: 2022-02-17
Abstract: To provide an imaging apparatus that can adjust the amount of exposure for an image pickup device when setting a plurality of different gains based on an exposure correction amount to a plurality of picked-up images.SOLUTION: An imaging apparatus 100 comprises an amplification unit 103 that amplifies signals based on output from an image pickup device 102 with a plurality of gains according to setting of an exposure correction amount in imaging. The imaging apparatus 100 determines, according to the set exposure correction amount, a first gain of the amplification unit 103 applied to an image for display (S202, S206), and a second gain of the amplification unit 103 used for an image for evaluation value acquisition based on picked-up images (S203, S205). When the second gain exceeds a predetermined range, a system control unit 107 controls the quantity of light stored in the image pickup device 102 through control of a diaphragm and a shutter (S207).SELECTED DRAWING: Figure 2
Patent JP-2023119750-A (JP)
Title: Underlay tape for cutting wallpaper, and producing method of the same
Inventor: NAKAMURA AKIHIRO
IPC: E04F21/18
Filed: 2022-02-17
Abstract: To obtain a material that is lightweight and flexible and has good handling properties while effectively protecting a base material.SOLUTION: In an underlay tape 11 for cutting a wallpaper in which synthetic resin films 13, 14 are arranged on both front and back sides of a flexible net-like sheet 12, intersection points 23 of warp threads 21 and weft threads 22 constituting the net-like sheet 12 are adhesively fixed to the films 13, 14. Further, a space 16 in which the films 13, 14 are not bonded to each other is formed between the films 13, 14 at a portion other than the portions corresponding to the intersection points 23.SELECTED DRAWING: Figure 2
Patent JP-2023120918-A (JP)
Title: Connector assembly, wire harness, and connector cover
Inventor: URASHIMA TOMOHIRO
IPC: H01R13/502
Filed: 2022-02-18
Abstract: To provide a connector assembly, a wire harness, and a connector cover capable of ensuring proper protection performance.SOLUTION: A connector assembly 1 applied to a wire harness WH includes a connector 10 and a connector cover 100 attached to the connector 10. The connector cover 100 includes: a wall part 100K that forms a connector housing space part SA for housing an end part of the connector 10 and a locking release part 31, and a routing space part SB which is positioned adjacent to the connector housing space part SA and in which a wiring material W is routed; a hole part 200 that is formed in the wall part 100K, positioned adjacent to the locking release part 31 and connecting inside and outside of the connector housing space part SA, while being attached to the connector 10; and a restriction part 300 that is formed in the wall part 100K and blocks the hole part 200 from the routing space part SB, while being attached to the connector 10.SELECTED DRAWING: Figure 6
Patent JP-2023121321-A (JP)
Title: Information provision device for passenger conveyor
Inventor: MINETA KARIN
IPC: B66B31/00
Filed: 2022-02-21
Abstract: To provide an information provision device for a passenger conveyor, which limits movement of users who have a fever using the passenger conveyor, and reduces a risk of the spread of infection of infectious diseases.SOLUTION: An information provision device for a passenger conveyor is provided, the device comprising body temperature measuring means that is provided on a pole arranged in front of an entrance of a passenger conveyor and measures the body temperature of a user who approaches the pole, determining means that determines whether or not the measured body temperature measured by the body temperature measuring means is higher than a standard body temperature set in advance, notifying means that notifies the user of predetermined information, and notifying control means that causes the notifying means to notify the users of information for refraining from using the passenger conveyor when it is determined by the determining means that the measured body temperature is higher than the standard body temperature.SELECTED DRAWING: Figure 2
Patent JP-2022134123-A (JP)
Title: Joint member, joint structure, and method for forming hydrophilic film
Inventor: SO TAKESHI
IPC: F28F1/12
Filed: 2022-03-02
Abstract: To provide a joint member that can improve hydrophilicity, and to provide a joint structure and a method for forming a hydrophilic film.SOLUTION: A joint member includes: a substrate containing a metal; a film provided at a surface of the substrate and containing a crystal of inorganic flux; and a plurality of linear bodies provided in the film and having hydrophilicity. Some of the linear bodies are exposed from the surface of the film.SELECTED DRAWING: Figure 1
Patent JP-2023128362-A (JP)
Title: Structure for joining ferromagnetic material and semiconductor material, and semiconductor spin element
Inventor: YAMASHITA NAOTO
IPC: H01L29/82
Filed: 2022-03-03
Abstract: To provide a structure for joining a ferromagnetic material and a semiconductor material, which achieves Ohmic contact.SOLUTION: A joint structure 10 comprises a semiconductor material layer 11 including a semiconductor material in which an S parameter has a positive value, and a ferromagnetic alloy layer 12 that is joined to the semiconductor material layer 11. The ferromagnetic alloy layer 12 is made of an alloy including a ferromagnetic material and a low work function material with a work function lower than electron affinity of the semiconductor material.SELECTED DRAWING: Figure 1
Patent JP-2023130029-A (JP)
Title: Measuring device and measuring method
Inventor: KAMIKADO MASAKI
IPC: H01J37/244
Filed: 2022-03-07
Abstract: To provide a measuring device and a measuring method that can measure a longitudinal phase spatial distribution of a pulsed charged particle beam.SOLUTION: A measuring device (1) comprises: a conversion mechanism (11) which uses a deflection magnet (11a) to convert a linear path (P1) of a charged particle beam into a planar path (P2) including a plurality of paths (P21-P23) that charged particles differing in energy pass through; and a measuring mechanism (12) which measures a longitudinal phase spatial distribution of the charged particle beams as a secondary intensity distribution of probe laser light having changed in a polarization direction through an electrooptical crystal (12b) with the charged particle beams.SELECTED DRAWING: Figure 1