baber/WOPTO huggingface dataset:
Patent JP-2022105703-A (JP)
Title: Preventing fog on medical device viewport
IPC: A61B1/00
Filed: 2022-05-26
Abstract: PROBLEM TO BE SOLVED: To provide methods of immunizing a viewport of a medical device against fogging before or during a medical procedure, and related apparatuses and devices. 
     SOLUTION: The viewport may be a viewport of a medical device 200 such as an endoscope and the process of immunization may be provided before using the medical device 200 in a medical procedure. The method comprises applying a plasma-generating electromagnetic field in a closed chamber that houses the viewport, in close vicinity to the viewport. The plasma treatment of the viewport is configured to increase hydrophilicity so as to achieve complete wetting of the viewport by water. 
     SELECTED DRAWING: Figure 1A 
     COPYRIGHT: (C)2022,JPO&INPIT
Patent JP-2022107753-A (JP)
Title: game machine
IPC: A63F7/02
Filed: 2022-06-01
Abstract: PROBLEM TO BE SOLVED: To ensure high reliability of game machine operation. 
     SOLUTION: A game machine includes: determination means for determining whether special information satisfies a predetermined condition or not; game round execution means for executing a game round when defining the fact that game operation for notifying the result of determination by the determination means is terminated after it is started as one game round; and state storage means for storing state information capable of specifying a plurality of states including at least a first state. The game round execution means includes: state information shifting means for shifting information specifying the state other than the first state to information specifying the first state for the state information, at the start of the game round, when the special information satisfies a predetermined condition; game operation setting means for setting the mode of the game operation on the basis of the state specified by the state information before being shifted by shifting, when shift is made by the state information shifting means; and game operation start means for starting the game operation on the basis of the set mode of the game operation. 
     SELECTED DRAWING: Figure 459 
     COPYRIGHT: (C)2022,JPO&INPIT
Patent JP-2022126680-A (JP)
Title: Statistical copolymer, latex and use thereof
IPC: C08J5/00
Filed: 2022-06-02
Abstract: PROBLEM TO BE SOLVED: To provide a statistical copolymer comprising a chloroprene monomer unit and an unsaturated nitrile monomer unit, which has good oil resistance. 
     SOLUTION: Provided is a statistical copolymer comprising a chloroprene monomer unit and an unsaturated nitrile monomer unit, which, when vulcanized rubber prepared using the statistical copolymer according to a specific sample preparation condition (I) is evaluated, oil resistance against IRM 903 Oil measured according to JIS K 6258 is ΔW<+15%, permanent compressive set at 0°C after 72 hours measured according to JIS K 6262 is 25% or less, and bending fatigue resistance at 40°C measured according to JIS K 6260 is 100000 times or more. 
     SELECTED DRAWING: None 
     COPYRIGHT: (C)2022,JPO&INPIT
Patent JP-2022116315-A (JP)
Title: Flexible thread battery with connector
IPC: H01M10/04
Filed: 2022-06-06
Abstract: PROBLEM TO BE SOLVED: To provide a flexible thread battery with a connector in which a connector is connected to an end of a flexible thread battery that has a high degree of freedom in a withdrawal position of an external electrode, has a battery function that is unlikely to stop when damaged, and is excellent in flexibility. 
     SOLUTION: A flexible thread battery with a connector comprises: a flexible thread battery that has a first end and a second end facing each other in a longitudinal direction, and includes a core thread, a first collector, and a second collector; and a connector that is connected to the first end or the second end of the flexible thread battery. The diameter of the core thread is 5 mm or less, and the ratio of the length to the diameter of the core thread (length/diameter) is 5 or more. The connector has a first connection terminal connected to the first collector and a second connection terminal connected to the second collector. 
     SELECTED DRAWING: Figure 4 
     COPYRIGHT: (C)2022,JPO&INPIT
Patent JP-2023180465-A (JP)
Title: 液体吐出ヘッド、液体吐出ユニット、及び、液体を吐出する装置
IPC: B41J2/14
Filed: 2022-06-09
Abstract: 【課題】液体吐出ヘッドのダンパの破損を抑制する。【解決手段】アクチュエータ基板７０に保持される電気機械変換素子を駆動して圧力室内の液体をノズルから吐出する液体吐出ヘッドであって、前記アクチュエータ基板とダンパ保持基板６５との間に配置されるダンパ６６を有し、前記ダンパは、前記アクチュエータ基板及び前記ダンパ保持基板のうちの一方に接着剤９０で接合され、前記ダンパが接合される対象を接合対象基板としたとき、前記ダンパには、前記接合対象基板７０の接着面と対向する対向領域に凹み又は貫通孔６６ａが形成されている。【選択図】図１１
Patent JP-2023181748-A (JP)
Title: 登録業務支援装置、登録業務支援方法、および登録業務支援プログラム
IPC: G06Q30/06
Filed: 2022-06-13
Abstract: 【課題】注文を登録する業務を、属人化を防ぎつつ、時間を掛けずに且つ間違いなく行うことができる登録業務支援装置、登録業務支援方法、および登録業務支援プログラムを提供することを課題とする。【解決手段】本実施形態では、補完項目マスタに設定されている補完確認項目について、商流補完マスタに設定されている項目値が、注文データが保持している項目値に一致すると見做せるかの確認を実行し、一致すると見做せると確認された場合に、注文データが有する、補完項目マスタに設定されている補完対象項目の項目値を保持するための領域への、商流補完マスタに設定されている当該補完対象項目の項目値の格納を実行する。【選択図】図２
Patent JP-2023182154-A (JP)
Title: 検査レポート作成装置及び方法
IPC: A61B8/00
Filed: 2022-06-14
Abstract: 【課題】検査レポートの作成に当たって、複数の定型文リストの中から特定の定型文リストを正確に且つ素早く選択できる仕組みを実現する。【解決手段】生体組織等を表した模式図７２に対して複数のエリアが設定されている。複数のエリアの中から特定のエリアが指定されると、特定のエリアに対応付けられた特定の定型文リスト７６が抽出及び表示される。定型文リスト７６の中の特定の定型文７８が指定されると、それが所見欄８２内に表示される。【選択図】図４
Patent JP-2023182924-A (JP)
Title: ビーム電流測定装置
IPC: G01T1/29
Filed: 2022-06-15
Abstract: 【課題】ビーム電流測定装置の簡素化及び小型化、並びに製造コスト及び作業負担の軽減化を図る。【解決手段】真空容器１０の内部に配置され、導体筒１と、前記導体筒の底面に設けられたスリット２と、前記導体筒の外周に設けられた二次電子抑制機構４と、から構成されるビーム電流測定部２０と、前記ビーム電流測定部を支持するとともに位置調整を行う支持部材６と、前記スリットの位置調整を行うスリット開閉機構８と、前記ビーム電流測定部で検出されたビーム電流値を前記真空容器の外部に設けられたビーム信号受信部１２へ出力するビーム電流読取り機構７と、を備えたビーム電流測定装置１００において、前記支持部材、スリット開閉機構及びビーム電流測定部は、前記真空容器に設けられた同一のポート９に接続されている。【選択図】図１
Patent JP-2024001712-A (JP)
Title: 自動運転システム、運転整理方法、および運転整理プログラム
IPC: G08G1/16
Filed: 2022-06-22
Abstract: 【課題】リスクエリアを正確に設定して安全な自動運転を実現することのできる自動運転システム、運転整理方法、および運転整理プログラムを提供する。【解決手段】業務情報データベース１０１及びインフラ情報データベース１０３に記録された計画上あるいは運用上の現場情報からリスク種別を特定し、リスク種別に基づき現場領域のうち所定領域をリスクエリアとして設定するリスクエリア設定部１１１と、現場領域内を走行する車両２の車両位置情報及びリスクエリア設定部１１１で設定されたリスクエリアに基づき、車両２の走行ルートを設定する車両ルート設定部１１７と、を備える。【選択図】図２
Patent JP-2024002664-A (JP)
Title: 検知装置、検知方法、検知プログラム、機械学習装置、機械学習方法、及び機械学習モデル
IPC: G06V10/70
Filed: 2022-06-24
Abstract: 【課題】機械学習に必要なデータを準備できない状況下でも対象状態検知が可能な検知装置、検知方法、検知プログラム、機械学習装置、機械学習方法及び機械学習モデルを提供する。【解決手段】検知装置１は、第１の機械学習モデル２１と、第１の機械学習モデル２１とともに相互学習に供される第２の機械学習モデル２２を有する制御部１１を備える。第２の機械学習モデル２２は、第１の機械学習モデル２１が複数のモダリティを有する真正又は不正の商品情報を生成するよう機械学習される。制御部１１は、複数のモダリティを有する商品情報の正否を識別するよう機械学習される複数のモダリティを有する商品情報を取得し、取得した複数のモダリティを有する商品情報の正否を、第２の機械学習モデル２２を用いて推定する。【選択図】図１
Patent JP-2024005236-A (JP)
Title: 遊技機
IPC: A63F7/02
Filed: 2022-06-30
Abstract: 【課題】演出の興趣性を向上させることが可能な遊技機を提供する。【解決手段】遊技機は、特別遊技が行われることを示唆する演出図柄を強調する強調演出を実行可能であり、操作手段の操作に関する特定報知音を所定時間出力することが可能であり、前記強調演出中に前記特定報知を実行可能であり、前記所定時間経過前でも、前記特別遊技が行われることを示唆する前記図柄が停止表示された場合は前記特定報知音の出力を終了することが可能である。【選択図】図１４
Patent JP-2024006763-A (JP)
Title: シート貼付装置およびシート貼付方法
IPC: B65C9/26
Filed: 2022-07-04
Abstract: 【課題】接着シートを貼付する被着体のシート貼付領域に難接着処理が施されていたとしても、折り曲げて貼付した接着シートが当該シート貼付領域から剥がれないようにすることができるシート貼付装置およびシート貼付方法を提供すること。【解決手段】所定の供給方向ＳＤに沿って供給された接着シートＡＳの当該供給方向ＳＤに沿う一端ＡＳ１側および他端ＡＳ２側のうち少なくとも一方に、被着体ＷＫの所定の一面ＷＫ３からはみ出したはみ出し領域ＡＳＨが形成されるように当該接着シートＡＳを一面ＷＫ３に貼付し、はみ出し領域ＡＳＨを別の面ＷＫ１、ＷＫ２方向に折り曲げて貼付する貼付手段２０を備えたシート貼付装置ＥＡにおいて、被着体ＷＫには、接着シートＡＳが接着し難い難接着処理ＭＴが施されており、接着シートＡＳが貼付される被着体ＷＫのシート貼付領域ＷＫＡに施されている難接着処理ＭＴを除去する難接着処理除去手段３０をさらに備えている。【選択図】図１
Patent JP-2024011970-A (JP)
Title: 遊技機
IPC: A63F7/02
Filed: 2022-07-15
Abstract: 【課題】賞価値を付与する期間を短くすることを目的とする。 
【解決手段】 
  ゲームの進行を制御可能な遊技制御手段と、遊技者が操作可能な操作手段と、を備える遊技機において、前記遊技制御手段には、操作に関連する情報が、外側に向かって突出するように表示され、さらに、前記遊技制御手段は、第１の賞価値に対応した賞の数を計数する計数手段を備え、前記第１の賞価値に対応した賞の数が所定数ない場合に、当該第１の賞価値に対応する情報を送信可能であり、前記第１の賞価値に対応した賞の数が所定数ある場合に、当該第１の賞価値と異なる第２の賞価値に対応する情報を遊技状態に応じて送信可能である。 
【選択図】図１１０
Patent JP-2022160513-A (JP)
Title: Wedge binding device in scaffold
IPC: F16B7/04
Filed: 2022-07-26
Abstract: PROBLEM TO BE SOLVED: To provide a wedge binding device used in a scaffold such as a temporary scaffold . 
     SOLUTION: In a wedge binding device in a scaffold, in a state where a flange (13) is made to advance to a receiving part (20) formed between an upper jaw part and a lower jaw part in a jaw metal fitting (15), a wedge member (16) inserted into insertion holes (21)(22) in the upper and lower jaw parts and a binding hole (14) of the flange is driven to move down to a binding position (P2). By press-fitting a wedge part of the wedge member into a space between a direct support edge part (14a) in the binding hole and receiving edge parts (21a) and (22a) in the insertion holes, abutting parts (18a) and (19a) at the tip of the jaw metal fitting is brought into contact with a column. A retreat position (P0) is the position in which the wedge member (16) is retreated to the upper part of the receiving part so as not to prevent the advance of the flange (13) into the receiving part (20). The wedge binding device has spring means (26) with an elastic retaining member (30) for holding the wedge member in the retreat position, and the holding power of the elastic retaining member (30) is constituted to prevent descent by the wedge member's dead weight and to permit up and down movement of the wedge member by external force. 
     SELECTED DRAWING: Figure 2 
     COPYRIGHT: (C)2023,JPO&INPIT
Patent JP-2023021045-A (JP)
Title: Aot compiler for legacy game
Inventor: ERNESTO CORVI
IPC: G06F8/76
Filed: 2022-07-28
Abstract: To provide a system and method for providing ahead of time (AoT) compiler for a legacy game.SOLUTION: The method includes scanning a memory device for an executable code of a legacy game, decoding the executable code, converting the executable code into a first source code, compiling the first source code to output a first compiled code, determining whether or not a user input is received during play of the legacy game, and determining whether or not a fiber for processing the user input is created. The fiber provides directionality of execution between the first compiled code and a second compiled code. The method further includes executing the fiber to generate one or more image frames of the legacy game in response to determining that the fiber for processing the user input is created.SELECTED DRAWING: None
Patent JP-2022166079-A (JP)
Title: Composition for controlling production of various factors containing mitol production-promoting component as active ingredient, mitol production promoter, and method for screening agent for controlling production of various factors with mitol production-promoting action as index
IPC: A61P43/00
Filed: 2022-08-03
Abstract: PROBLEM TO BE SOLVED: To provide: a composition for promoting the production of various factors containing MITOL production-promoting components or a composition for controlling the production of the various factors; a MITOL production promoter; and an agent for promoting the production of various factors with MITOL production-promoting action as an index or a method for screening an agent for controlling the production of the various factors. 
     SOLUTION: Provided is an agent for suppressing the degrease of MITOL or promoting the production thereof, the MITOL containing, as an active ingredient, at least one selected from the group consisting of prunus persica extract, hamamelis extract, niacinamide, phellodendron bark extract, coptis rhizome extract, Japanese green gentian extract, β-nicotinamide mononucleotide, and D-panthenol. An SOD2 or COL17A1 production promoter or an MME production inhibitor comprising a prunus persica extract as an active ingredient is preferable. 
     SELECTED DRAWING: Figure 1 
     COPYRIGHT: (C)2023,JPO&INPIT
Patent JP-2023043843-A (JP)
Title: toner
Inventor: MATSUI TAKASHI
IPC: G03G9/087
Filed: 2022-08-24
Abstract: To provide a toner that has both of low-temperature fixability and heat-resistant storageability and also has high tinting power.SOLUTION: A toner contains a binder resin and a colorant. The binder resin is a resin meeting one of following conditions (A) and (B): (A) it contains a crystalline resin having a unit (a) represented by the formula (1), and a resin having a sulfide structure; and (B) it contains a crystalline resin having a sulfide structure, and also having a unit (a) represented by the formula (1). The colorant is any one selected from carbon black, titanium black, copper phthalocyanine, copper phthalocyanine derivative, anthraquinone compound, azo pigment and condensed multicyclic compound. The peak temperature at the maximum endothermic peak of the toner exists in a range of 50°C or more and 70°C or less, and the endothermic quantity at the maximum endothermic peak is 30 J/g or more and 70 J/g or less.SELECTED DRAWING: None
Patent JP-2023041635-A (JP)
Title: Method, computer program, and device in data processing system (scalable visual analysis pipeline for large scale data set)
Inventor: Andrea giovannini
IPC: G16H50/00
Filed: 2022-09-01
Abstract: To provide a method, device, and computer program for implementing a visual analysis pipeline.SOLUTION: A mechanism generates, from an input database of records, a time series recognition graphical data structure comprising a plurality of record base features designated in an ontology data structure. The time series recognition graphical data structure includes: vertices indicating events or one or a plurality of record base features corresponding to the events; and an edge representing a time series relation between the events. The mechanism executes a time series recognition graphical query to the time series recognition graphical data structure, generates a filtered set of vertices corresponding to a standard of the time series recognition graphical query and corresponding features, executes a pattern finding action to the filtered set of the vertices and the corresponding features, and generates a visual analysis graphical representation for a subset of an identified vertex and a corresponding feature.SELECTED DRAWING: Figure 1
Patent JP-2022177067-A (JP)
Title: Device, method and program for identifying position of cornea center of eye
IPC: G06F3/01
Filed: 2022-09-01
Abstract: PROBLEM TO BE SOLVED: To detect a position of a cornea center of an eye. 
     SOLUTION: A device for identifying a position of a cornea center of an eye includes: at least three light sources for applying light to an eye; an imaging device for imaging an image of the eye; a lens arranged between the imaging device and the eye; and a processor. The processor is configured to execute a first detection procedure for calculating a position of a second point being an incidence position on the lens of the light reflected in a first point of a surface of the eye and being incident on the lens after having emitted from the light sources concerning each of the three light sources of the at least three light sources based on the image imaged by the imaging device, for identifying a flat surface containing the light sources, the first point and the second point concerning each of the three light sources, and for identifying three plane intersection points identified concerning the three light sources as the cornea center of the eye. 
     SELECTED DRAWING: Figure 1 
     COPYRIGHT: (C)2023,JPO&INPIT
Patent JP-2022172347-A (JP)
Title: Pest control system and related method
IPC: G06Q50/10
Filed: 2022-09-08
Abstract: PROBLEM TO BE SOLVED: To provide a more efficient pest monitoring and control system, a method, and a storage medium for streamlining operations to monitor a site in preparation for a plague of pests, and effectively, efficiently, and conveniently dealing with the problem of detected pests. 
     SOLUTION: In a pest monitoring and control system 100, a computer device 400 arranged distant from a pest monitoring devices 200 receives a generated signal from the pest monitoring device, analyzes environmental factor data and historical factor data for the site to determine the amount and an installation location of the pest monitoring device for monitoring the site, and directs deployment of the pest control monitoring device according to the analysis. The computer device receives, from a pesticide supply unit, data including the amount or rate of a pesticide substance supplied from a pesticide module to prepare a treatment agent including a certain concentration of the pesticide substance in a diluent, and the treatment agent is supplied from the pesticide supply unit to treat a detected pest at the site. 
     SELECTED DRAWING: Figure 1 
     COPYRIGHT: (C)2023,JPO&INPIT
Patent JP-2023004998-A (JP)
Title: nutritional composition
IPC: A61P37/02
Filed: 2022-09-20
Abstract: PROBLEM TO BE SOLVED: To provide a nutritional composition for improving the intestinal environment. 
     SOLUTION: The present technique provides a nutritional composition that contains indigestible dextrin and inulin, where the mass ratio of the indigestible dextrin to the prebiotic component is 100 or less times the mass ratio of the inulin to the prebiotic component. Preferably, the mass ratio of the indigestible dextrin to the prebiotic component is from 0.2 to 100 inclusive times the mass ratio of the inulin to the prebiotic component. 
     SELECTED DRAWING: Figure 1 
     COPYRIGHT: (C)2023,JPO&INPIT
Patent JP-2022189866-A (JP)
Title: Cosmetic product and method for producing cosmetic product
IPC: A61K47/14
Filed: 2022-10-13
Abstract: PROBLEM TO BE SOLVED: To provide specified types of cosmetics with particularly high activity in preventing or eliminating skin barrier disorders. 
     SOLUTION: Described is a cosmetic containing at least one hydrogenated phospholipid with a concentration of at least 0.7 wt.%, at least one dihydric and/or trihydric alcohol, and at least one wax, in addition to water. In the cosmetic, the weight ratio of the hydrogenated phospholipid to the wax is between 1:0.3 and 1:1.5, more preferably between 1:0.7 and 1:1. The hydrogenated phospholipid is at least partially within an orthorhombic lamellar crystal structure, and the wax is incorporated into and/or attached to the orthorhombic lamellar crystal structure. 
     SELECTED DRAWING: Figure 1 
     COPYRIGHT: (C)2023,JPO&INPIT
Patent JP-2023073212-A (JP)
Title: Electrolysis cell, and cell stack device
Inventor: NAKAMURA TOSHIYUKI
IPC: C25B11/089
Filed: 2022-10-24
Abstract: To provide an electrolysis cell that ensures high electrolytic performance of a hydrogen electrode while preventing its activity from deteriorating.SOLUTION: An electrolysis cell 10 comprises a support substrate 4, and a first element part 5a and a second element part 5b. The inside of the support substrate 4 is provided with a first channel 43 in which water vapor and carbon dioxide flow. The second element part 5b is disposed downstream from the first element part 5a in a circulation direction of H2O and CO2 flowing in the first channel 43. The first element part 5a comprises a hydrogen electrode activator 62 comprising a first material having oxygen ion conductivity and an oxide-based material having electron conductivity and also serving as an electrode catalyst. The second element part 5b comprises a hydrogen electrode activator 62 comprising a second material having oxygen ion conductivity and a metal-based material having electron conductivity and also serving as an electrode catalyst.SELECTED DRAWING: Figure 5
Patent JP-2023080021-A (JP)
Title: System and method for autonomous identification of heterogeneous phantom regions
Inventor: ARKA DATTA
IPC: A61B6/03
Filed: 2022-11-01
Abstract: To provide a system and method for autonomous identification of heterogeneous phantom regions by deep learning.SOLUTION: A computer-implemented method includes obtaining, at a processor, a tomographic image of a phantom, where the phantom includes heterogeneous regions having a plurality of materials with varying attenuation coefficients. The method also includes automatically segmenting, via the processor, the heterogeneous regions from the tomographic image to generate a segmented image. The method further includes automatically identifying, via the processor, a plurality of regions of interest having varying attenuation coefficients within the tomographic image based on the segmented image. The method still further includes automatically labeling, via the processor, each region of interest of the plurality of regions of interest as representing a particular material of the plurality of materials. The method even further includes outputting, via the processor, a labeled image of the tomographic image.SELECTED DRAWING: Figure 1
Patent JP-2023074499-A (JP)
Title: Spray-type external composition
Inventor: HIRATA SETSUKO
IPC: A61K8/02
Filed: 2022-11-16
Abstract: To provide a spray-type external composition that is free from stickiness, obtains a sufficient moisturizing effect by combining heparinoid, a specific amount of surfactant and a specific amount of oil solution, and furthermore, can realize very fine droplets in both of a solubilization type and an emulsification type, solves a problem on spray of uniformly spraying a cosmetic on entire face, and also has excellent stability.SOLUTION: A spray-type external composition is constituted of the following components (A) to (C): (A) heparinoid, (B) surfactant, and (C) oil solution, where a content mass ratio B/C between component B and component is 1 to 20.SELECTED DRAWING: Figure 1
Patent JP-2023015328-A (JP)
Title: Method
IPC: C07D303/48
Filed: 2022-11-17
Abstract: PROBLEM TO BE SOLVED: To provide a method for preparing tetrafluoro-1,2-epoxypropane. 
     SOLUTION: A method for preparing tetrafluoro-1,2-epoxypropane comprises reacting 2-bromo-tetrafluoropropan-3-ol with an alkali or alkaline earth metal hydroxide solution, a compound being 2,3,3,3-tetrafluoro-1,2-epoxypropane, and partially fluorinated polyethers of formula [OCRR 1 CR 2 R 3 ] n , where n is from 5 to 100, R is F or H, R 1  is CF 3 , R 2  is F or H, and R 3  is H. 
     SELECTED DRAWING: None 
     COPYRIGHT: (C)2023,JPO&INPIT
Patent JP-2023102758-A (JP)
Title: Buster wind power generator capable of generating large amount of power for multiple machines with one machine
Inventor: SHIGEI HARUO
IPC: F03D1/02
Filed: 2022-10-31
Abstract: To provide a wind power generator capable of generating a larger amount of power at all times.SOLUTION: Wind power generators conventionally generate power by receiving wind and rotating blades, rotating a shaft, and increasing a rotational frequency with a speed increaser. In order to generate a large amount of power with the same air volume, a rotational shaft is made into a multi-shaft, blades are incorporated at the tip of each shaft, or a speed increaser is incorporated into each shaft, in order that each shaft can rotate smoothly in the same direction, two-stage inter-shaft bearings are incorporated in the front and back of the shaft between a central main shaft and a second shaft, and between the second shaft and a third shaft, so that each shaft can rotate in the same direction to generate power, and therefore, wind power generators can be provided as wind power generators that can generate power for multiple machines with one machine.SELECTED DRAWING: Figure 1
Patent JP-2023022192-A (JP)
Title: SiC device and method for manufacturing SiC device
IPC: C30B29/36
Filed: 2022-11-28
Abstract: PROBLEM TO BE SOLVED: To obtain a SiC device and a method for manufacturing the same that can measure the total thickness of the epitaxial layer and the thickness of the drift layer. 
     SOLUTION: A SiC device has a SiC substrate and a SiC epitaxial layer stacked on the SiC substrate. The SiC epitaxial layer has a first layer, a second layer, and a third layer in order from the SiC substrate side. The nitrogen concentration of the SiC substrate is not less than 6.0×10 18  cm -3  and not more than 1.5×10 19  cm -3 . The nitrogen concentration of the first layer is not less than 1.0×10 17  cm -3  and not more than 1.5×10 18  cm -3 . The nitrogen concentration of the second layer is not less than 1.0×10 18  cm -3  and not more than 5.0×10 18  cm -3 . The nitrogen concentration of the third layer is not less than 5.0×10 13  cm -3  and not more than 1.0×10 17  cm -3 . 
     SELECTED DRAWING: Figure 1 
     COPYRIGHT: (C)2023,JPO&INPIT