baber/WOPTO huggingface dataset:
Patent JP-2022151685-A (JP)
Title: Material for processing nonoxide-based ceramic and laminated substrate
Inventor: MITSUNAGA Atsumi
IPC: C09J11/04
Filed: 2022-03-07
Abstract: To provide a material containing a prescribed tetrafluoroethylene-based polymer that is excellent in adhesion, heat resistance, and solder resistance with non-oxide ceramic, has excellent balance of a linear expansion coefficient with the non-oxide ceramic and difficult to cause warp or peel due to shrinkage, and is used for processing such as lamination, adhesion, bonding, sealing and repair of the non-oxide ceramic.SOLUTION: A material for processing non-oxide ceramics containing a hot-melt tetrafluoroethylene polymer having a carbonyl group-containing group or a hydroxyl group-containing group.SELECTED DRAWING: None
Patent JP-2023079138-A (JP)
Title: Information processing system, information processing method and information processing program
Inventor: KUMEMURA HAYATO
IPC: G06N20/00
Filed: 2022-03-11
Abstract: To provide an information processing system, an information processing method, and an information processing program which enable suppression of such a problem that a generation process of a learning model is obscured.SOLUTION: In an information processing system in which an information processing device, a user terminal, and a database communicate with each other through a telecommunication line, a control unit 23 of the information processing device including a communication unit, a storage unit, and the control unit 23 comprises: an input data reading unit 232 which reads first input data; an input data reading unit 232 which reads second input data generated by performing a predetermined transformation process on the first input data and used for generating a learning model by a learning device; and a data display unit 237 which displays, in a manner viewable as a list, at least common points and difference points between the first input data and the second input data and difference points between the first input data and the second input data. The display format for the difference points is different from the display format for the common points.SELECTED DRAWING: Figure 4
Patent JP-2023135277-A (JP)
Title: Structure for holding pipe in internal combustion engine
Inventor: MATSUMURA HIROAKI
IPC: F01P11/04
Filed: 2022-03-15
Abstract: To disclose a structure capable of performing connection without straining and improving sealability, in a pipe one end of which is inserted into a connection port and in which a bracket is fixed to a bolt.SOLUTION: A sealing material (O-ring 18) is mounted to one end part 15a of a cooling water return pipe 15. A hose 16 is connected to the other end part 15b of the cooling water return pipe 15. A first bracket 24 and a second bracket 25 facing in opposite directions are fixed to the cooling water return pipe 15, and the second bracket 25 is fixed to a cylinder block 1 with a bolt 35. When the cooling water return pipe 15 is inserted into a connection port 13, a cut groove 26 provided in the first bracket 24 is fitted into a receiving member (stud bolt 27) protruding from a cylinder head 2. Consequently, the posture of the cooling water return pipe 15 is maintained. The stud bolt 27 also functions as a rotation stopper when fixing another member 28 with a bolt 29.SELECTED DRAWING: Figure 2
Patent JP-2023136123-A (JP)
Title: Dangerous spot recognition system and dangerous spot recognition method
Inventor: FUKAI HIRONAGA
IPC: G06T7/00
Filed: 2022-03-16
Abstract: To provide a dangerous spot recognition system and a dangerous spot recognition method which can save labor of easy-to-understand material creation for KYT execution, and perform assessment of danger sensitivity.SOLUTION: A dangerous spot recognition system comprises: a registration unit 11 which registers an image; a danger recognition unit 12 which recognizes a dangerous spot and a danger type with respect to the registered image by a danger recognition model in which danger recognition learning has performed in advance, and registers the dangerous spot and the danger type with the image; a correction unit 13 which corrects the registered dangerous spot and/or the danger type; a learning unit 14 which performs danger recognition learning of the danger recognition model by handling the corrected image, the dangerous spot and the danger type as teacher data; a reference unit 15 which makes a user refer to the registered image, the dangerous spot and the danger type; and an educational display unit 16 which displays only the registered image, and makes the user input the dangerous spot and the danger type to educate the user.SELECTED DRAWING: Figure 1
Patent JP-2022191148-A (JP)
Title: game machine
Inventor: TADANO ISAO
IPC: A63F7/02
Filed: 2022-03-17
Abstract: To provide a game machine that can enhance the interest.SOLUTION: A game machine includes symbol control means capable of performing a variation display of a symbol on the basis of the satisfaction of a predetermined start condition and performing a symbol game capable of deriving any one of the lottery results including a specific small winning and a special result V small winning that is more advantageous to a player than the specific small winning, and specific game state control means capable of controlling a game state to an A time-saving game state which is more advantageous to the player than a normal game state. The specific game state control means can terminate the A time-saving game state when the specific small winning is derived a specific number of times while the game state is controlled to the A time-saving game state that is more advantageous to the player than the normal game state. The game state can be controlled to any one of the multiple A time-saving game states including at least the A time-saving game state corresponding to a time-saving type mode 1 and the A time-saving game state corresponding to a time-saving type mode 2.SELECTED DRAWING: Figure 125
Patent JP-2023136903-A (JP)
Title: Steel frame beam
Inventor: KANEZAKI SHINTARO
IPC: E04C3/08
Filed: 2022-03-17
Abstract: To provide a steel frame beam capable of securing sufficient plastic deformation performance while suppressing an increase in yield strength due to strain hardening after the steel frame beam reaches total plastic yield strength by increasing the order of a buckling mode generated in the steel frame beam.SOLUTION: A steel frame beam comprises an upper flange, a lower flange, and a web connecting the upper flange and the lower flange. A slit extending in a height direction of the web is formed in the web.SELECTED DRAWING: Figure 1
Patent JP-2023139467-A (JP)
Title: High strength steel sheet, and automobile body
Inventor: TAKEYAMA Hayato
IPC: C25D15/02
Filed: 2022-03-22
Abstract: To suppress hydrogen intrusion into a base steel sheet that is a possible cause for a delayed fracture in providing a high strength steel sheet excellent in delayed fracture resistance to be mainly used as a strength member for an automobile and a housing material.SOLUTION: A high strength steel sheet includes a base steel sheet of a tensile strength of 1,180 MPa or more and a Zn-SiO2 composite plating layer coated on the surface of the base steel sheet. The Zn-SiO2 composite plating layer has a coating amount of 0.10 g/m2 or more and a SiO2 concentration of the Zn-SiO2 composite plating layer is 0.1 mass% or more and less than 10 mass%, thereby to greatly suppress hydrogen intrusion into the steel sheet and to prevent a delayed fracture of the steel sheet.SELECTED DRAWING: Figure 1
Patent JP-2023141441-A (JP)
Title: Body posture change auxiliary device
Inventor: TANAKA NORIKO
IPC: A61G7/053
Filed: 2022-03-24
Abstract: To provide a body posture change auxiliary device to be easily attached to a side fence of an existing bed.SOLUTION: A body posture change auxiliary device 1000 is the device for assisting a change of a body of a person lying on a bed 900 under his/her own power, such as roll-over and sitting-up of an upper half body. The body posture change auxiliary device includes: a fixing member 100 to be fixed to a side fence 910 of the bed 900; a string member 200 connected to the fixing member 100; and a grip part 300 arranged at a tip end of the string member 200. The string member 200 has a length set to enable a person lying on the bed 900 to reach the grip part 300 by extending his/her hand.SELECTED DRAWING: Figure 5
Patent JP-2023142216-A (JP)
Title: Game machine
Inventor: SUZUKI KYO
IPC: A63F5/04
Filed: 2022-03-24
Abstract: To provide a game machine capable of securing fairness of games.SOLUTION: When a stop operation is performed in a recommended pushing order, an acquisition expecting value of medals (coins) is configured to be lower than when the stop operation is performed in an irregular pushing order. In a normal section, when the stop operation is performed in the irregular pushing order, a specific presentation for urging a stop operation in the recommended pushing order is to be performed. In an advantageous section, during a situation staying in a normal presentation state, when the stop operation is performed in the irregular pushing order, the specific presentation is to be performed.SELECTED DRAWING: Figure 33
Patent JP-2023142426-A (JP)
Title: Sterilization deodorization machine
Inventor: TAGUCHI NORIAKI
IPC: A61L9/00
Filed: 2022-03-25
Abstract: To provide a sterilization deodorization machine capable of safely replacing a filter unit.SOLUTION: A sterilization deodorization machine 10 comprises: a casing 20; a filter unit 12 including a photocatalyst filter 40 and detachably attached to a unit storage part 28; an opening/closing cover which can open the unit storage part; a light source 14 including a plurality of light-emitting parts (LED 32) and irradiating a principal surface of the photocatalyst filter with light; a blower fan 16 generating an air flow passing through the unit storage part; and a partition pale 60 that has a plurality of openings 62 formed at positions facing the plurality of light-emitting parts respectively, and which is disposed so as to partition the filter unit and the light source from each other.SELECTED DRAWING: Figure 2
Patent JP-2023143337-A (JP)
Title: Vehicle recording control device and vehicle recording control method
Inventor: HOSHINO KUNITO
IPC: H04N7/18
Filed: 2022-03-25
Abstract: To record only an appropriate image and reduce power consumption.SOLUTION: A vehicle recording control device includes a photographic data acquisition unit that acquires photographic data photographed by a camera photographing the surroundings of a vehicle, a parking detection unit that detects that the vehicle is parked, an object recognition unit that recognizes objects around the vehicle from the photographic data, a moving object detection unit that detects a moving object on the basis of the movement of the object recognized by the object recognition unit, an event detection unit that detects an event during parking on the basis of the movement of the moving object detected by the moving object detection unit, and a recording control unit that stores the photographic data as event record data when the event detection unit detects an event. When the object recognition unit is in a situation where it is difficult to recognize the object, the moving object detection unit analyzes the presence or absence of a temporally displaced region in the imaging data, and when the displaced region is extracted, detects the displaced region as the moving object.SELECTED DRAWING: Figure 1
Patent JP-2023148382-A (JP)
Title: Substrate for liquid discharge head and manufacturing method for substrate for liquid discharge head
Inventor: KATO MASATAKA
IPC: B41J2/14
Filed: 2022-03-30
Abstract: To provide a substrate for a liquid discharge head, which enables liquid to be stably discharged through a discharge hole.SOLUTION: A substrate for a liquid discharge head, which is used for a liquid discharge head, has a discharge hole for discharging liquid from the inside of the substrate to the outside thereof, in which a plurality of scallops which periodically varies a diameter of an inner peripheral surface of the discharge hole in a penetrating direction is formed on the inner peripheral surface. A width in the penetrating direction of the first scallop at the outermost side, of the plurality of scallops is smaller than a width of the second scallop arranged adjacently to the inside with respect to the first scallop, and a depth in a radial direction of the discharge hole of the first scallop is smaller than a depth of the second scallop.SELECTED DRAWING: Figure 4
Patent JP-2023148638-A (JP)
Title: Relay device and system
Inventor: NAKADA YOHEI
IPC: H05B47/175
Filed: 2022-03-30
Abstract: To reduce the time and effort required to control each control device.SOLUTION: A relay device includes a reception unit and a transmission unit. The reception unit receives information regarding a change in control information of a control target from a control device for controlling the control target. When the information regarding the change is received, the transmission unit transmits a notification regarding the change to another control device different from the control device of a change instruction source.SELECTED DRAWING: Figure 2
Patent JP-2023148647-A (JP)
Title: Composition for pore plug removal
Inventor: DOI YASUKO
IPC: A61K8/37
Filed: 2022-03-30
Abstract: To provide a composition for pore plug removal with excellent pore plug removal action.SOLUTION: A composition for pore plug removal contains the following components (A)-(C), with the mass ratio of component (A) to component (B), (A/B) of 0.2-8.0. (A) Polyglycerol fatty acid diester composed of a C8-12 fatty acid and a polyglycerol with an average degree of polymerization of 2-15. (B) Polyglyceryl fatty acid ester composed of a C18-22 fatty acid and a polyglycerol with an average degree of polymerization of 2-15. (C) Oil solution.SELECTED DRAWING: None
Patent JP-2023148727-A (JP)
Title: Lighting device
Inventor: ONO TETSUYA
IPC: F21S8/04
Filed: 2022-03-30
Abstract: To provide a lighting device capable of improving workability.SOLUTION: A lighting device 10 comprises a long fixture body 20, a cover 50, and a positioning guide 23. The cover 50 has an opening part into which the fixture body 20 is inserted, and is attached to the fixture body 20. The positioning guide 23 protrudes from both end parts of the fixture body 20 in the longitudinal direction in a direction opposite to the direction in which the cover 50 is attached, and outside surfaces of the fixture body 20 on both sides in a transverse direction intersecting a longitudinal direction are inclined so that a distance between them becomes narrower toward in a protrusion direction.SELECTED DRAWING: Figure 1
Patent JP-2023151496-A (JP)
Title: Method for producing treated-silica dispersed monomer composition
Inventor: UENO TAKAYUKI
IPC: C01B33/145
Filed: 2022-03-31
Abstract: To obtain a better dispersion state of silica particles in a method for producing a composition comprising silane-treated silica particles dispersed in a polymeric monomer.SOLUTION: A method for producing a treated-silica dispersed monomer composition includes: mixing a basic silica dispersion liquid, in which silica is dispersed in a solvent containing 10 mass% or more of water, with a silane coupling agent to prepare a silane-treated silica dispersion liquid; mixing the silane-treated silica dispersion liquid with a polymerizable monomer to obtain a mixture; and removing a water phase from the mixture and obtaining a composition in which silica treated with the silane coupling agent is dispersed in the polymerizable monomer.SELECTED DRAWING: None
Patent JP-2023156210-A (JP)
Title: System and method for managing data processing
Inventor: HISATSUNE TAIJI
IPC: G06F9/48
Filed: 2022-04-12
Abstract: To prevent a throughput reduction of processing desired to give preference in the case there is a branch instruction in stream processing.SOLUTION: A system for managing data processing comprises a queue laying-out system that lays out a queue with a processing description of stream processing having a branch instruction as an input. The queue laying-out system designates processing to be preferentially executed for the processing description, measures a throughput in each processing after the branch instruction, and acquires a branching percentage that is a percentage to execute each processing after the branch instruction. The queue laying-out system calculates a layout cost for laying out a queue between the branch instruction and the processing after the branch instruction, for each combination of those of processing after the branch instruction, using the throughput and the branching percentage and outputs a layout pattern of queues to prevent a throughput reduction of the preferential processing out of those of processing after the branch instruction.SELECTED DRAWING: Figure 7
Patent JP-2022171597-A (JP)
Title: Polyester-based laminate film, laminate, packaging bag, and package
Inventor: KAGEYAMA YOHEI
IPC: B32B7/027
Filed: 2022-04-22
Abstract: To provide a polyester-based laminate film excellent in heat sealability, aroma retention, thermal resistance, and impact resistance and useful as a material for a packaging bag, and to provide a laminate, a packaging bag, and a package made thereof.SOLUTION: A polyester-based laminate film includes a seal layer containing a polyethylene terephthalate-based resin having a crystal melting peak temperature of 190-270°C of 40.0-80.0 mass%, a thermoplastic copolyester resin having a crystal melting peak temperature of 90-180°C of 10.0-40.0 mass%, and a polyolefin-based resin of 2.0-20.0 mass% and a main layer containing a polyethylene terephthalate-based resin of 90 mass% or more.SELECTED DRAWING: None
Patent JP-2023162053-A (JP)
Title: 遊技機
IPC: A63F7/02
Filed: 2022-04-26
Abstract: 【課題】 表面実装電子部品が実装される電子基板を備える遊技機において、信頼性の低下を抑制することができる遊技機を提供する。【解決手段】 遊技の進行に関わる主制御基板を備える遊技機であって、主制御基板の表基板面と裏基板面とのうちの少なくとも表基板面には、挿入実装電子部品と、表面実装電子部品と、が複数実装され、主制御基板の表基板面に実装される表面実装電子部品のうちの特定表面実装電子部品と挿入実装電子部品とは、電子部品実装不可領域を挟んで隣接配置される。【選択図】図１２９
Patent JP-2022172463-A (JP)
Title: Optimised compression high temperature electrolyzer system
Inventor: NICOLAS TAUVERON
IPC: C25B15/021
Filed: 2022-05-02
Abstract: To provide an optimized compression high temperature electrolyzer system.SOLUTION: A system includes a high temperature electrolyzer (HTE) (1), a first line (2) for supplying steam to the electrolyzer (1), a first line (4) for discharging dihydrogen from the electrolyzer (1), a second line (3) for discharging dioxygen from the electrolyzer (1), and a first heat exchange module (5) to ensure a heat exchange between the line (2) and the line (4). The system also includes a steam ejector (9) arranged downstream of the first heat exchange module (5) on the line (4) to inject steam into the line (4). The system relates to the field of high temperature electrolysis (HTE, HTSE) of water accompanying solid oxide (SOEC) and that of solid oxide fuel cells (SOFC). The system is applied particularly to optimize the energy consumption in an SOEC electrolyzer system.SELECTED DRAWING: Figure 1
Patent JP-2023167386-A (JP)
Title: 画像測定装置
IPC: G01B11/02
Filed: 2022-05-12
Abstract: 【課題】画像測定装置に搭載した非接触変位計を用いて高さ測定を行う場合に、測定時間を短縮する。【解決手段】画像測定装置１は、ステージ２１の上方において撮像部５０を支持する支持部２２と、支持部２２に設けられ、撮像部５０の撮像軸に沿って撮像部５０を移動させることにより撮像部５０の焦点位置を調整する焦点調整機構２５と、焦点調整機構２５により撮像部５０とともに移動するとともに、ステージ２１の法線方向に沿って測定光を出射し、ワークＷからの反射光を受光することにより、ステージ２１上のワークＷの高さを非接触で測定する非接触測定部７０とを備えている。【選択図】図３
Patent JP-2022159263-A (JP)
Title: Multi-cavity die casting metal mold for piston
Inventor: HAMADA KAZUAKI
IPC: B22D17/22
Filed: 2022-05-19
Abstract: To provide a metal mold structure of a die casting metal mold for piston that can take a plurality of castings for one metal mold in order to improve productivity.SOLUTION: As a metal mold structure, a size of a runner for a product part is so made as to be thicker than a conventional runner of die casting with respect to a product. A cooling mechanism is provided on the product part, and the cooling structure is required to cool molten metal while supplying the molten metal after charging of the molten metal. Further, An overflow (1) for finally compressing air in the metal mold is provided in order to take a method for eliminating entrainment of air in the product part. Further, with respect to a shrinkage cavity due to solidification, since the cooling mechanism is located so that the runner part is solidified at a time later than the product part and cooling conditions are changed by setting an order from the focus to a cooling time, there is no cavity of a material (for example, aluminum and the like), which shrinks due to wall thickness, in the product part.SELECTED DRAWING: Figure 1
Patent JP-2023172719-A (JP)
Title: 記録装置及びそのノズル吐出状態の判定方法
IPC: B41J2/01
Filed: 2022-05-24
Abstract: 【課題】 吐出検査を最適に行う駆動条件・吐出検査判定条件はノズル毎に差異があり、ノズル毎に最適な条件で高精度に吐出検査を行うことが難しい。【解決手段】 記録装置は、印刷画像形成のための吐出データ生成部１及び駆動データ生成部１と、駆動データ生成部１とは異なる駆動方法を指定する駆動データ生成部２と、駆動データ生成部１と駆動データ生成部２から使用する駆動データを選択する選択部と、前記駆動データ生成部２の駆動データには、吐出状態検知条件を決定するパラメータが含まれ、駆動データ生成部２の駆動データによって吐出状態検知用の吐出を行う印刷装置であって、駆動データ生成部２はノズル列間距離を調整するための記録メモリ上に、予め保持された駆動条件を用いて駆動データを生成し、吐出検査部はノズル列間距離を調整するための記録メモリ上に予め保持された、吐出状態検知条件を決定するデータを用いて吐出状態の判定を行う。【選択図】 図１３
Patent JP-2023173883-A (JP)
Title: 加工方法、工作機械、切削工具及び切削インサート
IPC: B23B1/00
Filed: 2022-05-26
Abstract: 【課題】切削抵抗の増加を抑制すると共に表面粗さを好適にすることができる加工方法、工作機械、切削工具及び切削インサートを提供する。【解決手段】ワークＷと切削工具１１を相対移動させて切削加工する加工方法において、第１曲線部４０ａと、第１曲線部４０ａに連続して形成され、第１曲線部４０ａよりも曲率の小さい第２曲線部４０ｃと、第１曲線部４０ａと第２曲線部４０ｃとを接続する接続部４０ｂと、を有する切削インサート２８を備えた切削工具１１を用いて、接続部４０ｂを切削加工時の相対移動方向と直交する切り込み方向の先端に位置決めして切削加工することを特徴とする。【選択図】図３
Patent JP-2023180484-A (JP)
Title: メモリシステムおよびデータ訂正方法
IPC: G06F11/10
Filed: 2022-06-09
Abstract: 【課題】外部からデータの誤りを検出できない記憶部を用いたメモリシステムにおいて、記憶部のデータの誤りを訂正可能なスクラビング処理を行う。【解決手段】メモリシステムは、制御部と、自律して内部に格納されたデータの誤り訂正が可能な記憶部とを有する。制御部は、記憶部のスクラビング処理を実行するスクラビング処理回路４を備える。スクラビング処理回路４は、アドレス生成部４１、アクセス要求部４２およびデータ保持部４３を有し、一定期間内に記憶部に格納された全データについて、データの読み込み・書き戻しを行う。スクラビング処理回路４は、記憶部から読み込んだデータを、そのまま当該データが格納された同一のアドレス範囲に書き戻しを行う。【選択図】図３
Patent JP-2023181618-A (JP)
Title: ドレッシング方法
IPC: B24B53/00
Filed: 2022-06-13
Abstract: 【課題】切り刃の外周端面を平らに成形する際に、該切り刃の破損を避けながら効率よくドレシングを実施することができるドレッシング方法を提供する。【解決手段】切削装置を用いたドレッシング方法であって、チャックテーブル２２の中央領域にドレッシングボードＤを位置付けて保持するドレッシングボード保持工程と、切削手段８に支持された切削ブレード８１の切り刃８１ａの先端をチャックテーブル２２の回転軸Ａに対応させて位置付ける切削ブレード位置付け工程と、チャックテーブル２２を回転させると共に切削ブレード８１を回転させてチャックテーブル２２に保持されたドレッシングボードＤに切り込み送りして切削ブレード８１の切り刃８１ａ’の先端ＰをドレッシングボードＤに接触させて切り刃８１ａ’の外周端面を平らに成形するドレッシング工程と、を含み構成される。【選択図】図５
Patent JP-2023181709-A (JP)
Title: 関節角度測定システム
IPC: G06T7/70
Filed: 2022-06-13
Abstract: 【課題】 本発明は、関節角度測定システム、関節角度測定方法、関節角度測定プログラムに関する。【解決手段】 関節角度測定システム１は、対象者の正面側より複数の関節を含めて撮影された動画データを受け付ける受信部と、動画データから関節角度を解析処理する解析処理部と、記憶部と、を備える。前記解析処理部は、前記動画データから複数の静止画データを作成処理し、前記静止画データを画像解析して、関節ごとの３次元座標を推定処理し、前記３次元座標を用いて前記関節角度を解析処理し、その解析処理の結果を前記記憶部へ格納する。【選択図】図１
Patent JP-2022121490-A (JP)
Title: Transmission method, reception method, transmission apparatus and reception apparatus
IPC: H04H60/82
Filed: 2022-06-15
Abstract: PROBLEM TO BE SOLVED: To reduce a channel selection time. 
     SOLUTION: A transmission method is a transmission method for transmitting contents via broadcasting. The transmission method includes: a generation step (S421) of generating a frame for transmission in which a first IP (Internet Protocol) packet storing contents and a second IP packet including reference clock information indicating a time for playing back the contents are stored; and a transmission step (S422) of transmitting the generated frame. In the generation step (S421), the first IP packet is subjected to header compression while the second IP packet is not subjected to header compression. 
     SELECTED DRAWING: Figure 55 
     COPYRIGHT: (C)2022,JPO&INPIT
Patent JP-2024001542-A (JP)
Title: レーザダイオード装置
IPC: H01S5/0225
Filed: 2022-06-22
Abstract: 【課題】コストダウンを図ることができるレーザダイオード装置を提供する。【解決手段】第１のレーザモジュールＬＭ１の第１のレーザビーム発生源群と第２のレーザモジュールＬＭ２の第２のレーザビーム発生源群とは１つの直線上に位置している。第１のレーザモジュールＬＭ１の第１のミラー群と第２のレーザモジュールＬＭ２の第２のミラー群とは１つの直線上に位置している。第１のレーザモジュールＬＭ１と第２のレーザモジュールＬＭ２との間には、レーザビームの進行方向を９０度曲げるミラー５１及び５２が配置されている。直線状の水路５０１は、第１及び第２のレーザビーム発生源群の下方に配置されている。ミラー５１及び５２は、直方体の複数の辺のうちの高さ方向と平行の辺を含む１つの角を上端部から下端部まで切り落とした切り落とし面を含む形状を有し、レーザビームを反射する反射面と切り落とし面とが４５度以下の角度を有する。【選択図】図１