baber/WOPTO huggingface dataset:
Patent WO-2021193349-A1 (WO)
Inventor: SAKURADA KENTA
IPC: C08F8/14
Filed: 2021-03-18
Abstract: This polymer includes: a structural unit A derived from at least one selected from the group consisting of ethylene and propylene; a structural unit B represented by formula (1); and a structural unit C represented by formula (2). In formula (1), L 16  represents −(CH 2 ) n — (R f2 O) p —R f1 , R f1  represents a C 1-15  alkyl group in which at least one hydrogen atom is substituted with at least one fluorine atom, R f2  represents a C 1-15  alkylene group in which at least one hydrogen atom is substituted with at least one fluorine atom, p represents an integer of 0-15, and n represents an integer of 0-10. In formula (2), L 26  represents -(CH 2 ) n -(R r2 O) q -R r1 , R r1  represents a hydrogen atom or a C 1-15  alkyl group, R r2  represents a C 1-15  alkylene group, q represents an integer of 0-1000000, and n represents an integer of 0-10.
Patent WO-2021193596-A1 (WO)
Title: 一時処理培地、処理キット、胚発生停止抑制剤、胚発生停止抑制方法、発生工学産物作製方法、移植方法、治療方法、及び発生工学産物
Inventor: NAGAO YASUMITSU
IPC: A61L27/38
Filed: 2021-03-23
Abstract: 胚等の操作による胚発生停止を抑制する一時処理培地を提供する。一時処理培地は、多能性幹細胞、生殖細胞、受精卵、及び胚のいずれか又は任意の組み合わせを含む体外培養物への操作によるダメージを減少させる。このため、一時処理培地は、細胞内骨格調整剤及び／又はアポトーシス抑制剤を含む。この細胞内骨格調整剤及び／又はアポトーシス抑制剤は、Ｒｈｏキナーゼ阻害剤であることが好適である。具体的には、Ｒｈｏキナーゼ阻害剤は、Ｒｏｃｋ阻害剤を用いることが可能である。このＲｏｃｋ阻害剤は、例えば、Ｙ－２７６３２である。一時処理培地は、ダメージを伴う操作の前及び／又は後の特定期間、体外培養物を処理するのに用いられる。
Patent WO-2021201111-A1 (WO)
Inventor: TANAKA YUJI
IPC: G01N33/68
Filed: 2021-03-31
Abstract: La présente invention traite le problème consistant à fournir un procédé de différenciation de la thyroïdite destructrice.　La présente invention concerne un procédé de différenciation de la thyroïdite destructrice, le procédé comprenant la mesure de la mono-iodotyrosine et/ou de la di-iodotyrosine dans un échantillon.
Patent WO-2021210435-A1 (WO)
Inventor: NAKADE KENSHIRO
IPC: C08L27/12
Filed: 2021-04-05
Abstract: 本発明の一実施形態は、シール材に要求される耐クリープ性を維持しつつ、シール性が向上したシール材を提供し、該シール材は、フッ素樹脂と無機充填材とを含み、前記フッ素樹脂の結晶化度が５０％以上である。
Patent WO-2022215168-A1 (WO)
Title: Power conversion device
Inventor: AMIMOTO TAKESHI
IPC: H02M7/48
Filed: 2021-04-06
Abstract: A power conversion device (10) comprises: a plurality of phase converters (31–33) that are provided to correspond to a plurality of phases; and a control device (14) that controls the operations of the phase converters. Each phase converter includes: a unit converter group that is formed from at least one unit converter (21) that has a plurality of switching elements (1a–1d) and a capacitor (11); and a reactor (4) that is connected to the unit converter group. A first terminal of the two terminals of the phase converter corresponds to a terminal of the two terminals of the reactor that is not connected to the unit converter group. A second terminal of the two terminals of the phase converter corresponds to a terminal of the two terminals of the unit converter group that is not connected to the reactor. The power conversion device can switch between a first connection pattern in which the second terminals of the phase converters are connected and a second connection pattern in which the second terminal of each of the plurality of phase converters is connected to the first terminal of another phase converter.
Patent WO-2021229957-A1 (WO)
Title: Directional coupler
Inventor: TAMARU IKUO
IPC: H01P5/18
Filed: 2021-04-06
Abstract: Provided is a directional coupler in which coupling characteristics are further flattened.　The present invention is provided with an input terminal T1, an output terminal T2, a coupling terminal T3, an end terminal T4, ground terminals T5, T6, a main line M, a first sub-line S1, and a second sub-line S2. The main line M and the sub-lines (the first sub-line S1, the second sub-line S2) are electromagnetically coupled to each other. A phase conversion unit (low-pass filter 10) is connected between the first sub-line S1 and the second sub-line S2. A resonance circuit 20 in which an inductor L11, a capacitor C11, and a resistor R11 are connected in series is connected to a point between the coupling terminal T3 and the end terminal T4 and between the ground terminals T5, T6.
Patent WO-2022044415-A1 (WO)
Title: Retardation film, laminated retardation film, retardation-layer-equipped polarizing plate, and image display device
Inventor: AZUMA SHINTARO
IPC: H05B33/02
Filed: 2021-04-07
Abstract: Provided are a retardation film that is extremely thin and has excellent flexibility, crack resistance, and crystallinity, a laminated retardation film, and a retardation-layer-equipped polarizing plate and an image display device that use same. This retardation film is obtained by drawing a specific polyester resin film under a specific condition.
Patent WO-2021221005-A1 (WO)
Inventor: ICHIKAWA JUNYA
IPC: A43C11/00
Filed: 2021-04-26
Abstract: [Problem] In the tape-like opening/closing tool using a magnetic, the risks of occurring of corrosion of the magnet and breakage of tape due to incursion by moisture are reduced by heating the heat-shrinkable resin tube to heat-shrink.　[Solution] The present invention provides a tape-like opening/closing tool for an article opening. The present invention comprises a heat-shrinkable resin tube and a plurality of magnets arranged in the tube at regular intervals. The magnets are sealed such that the positions of the magnets are fixed by the resin after heat-shrinkage. The present invention provides a method for manufacturing a tape-like opening/closing tool for an article opening, the method comprising: a step of preparing a heat-shrinkable resin tube (12); a step of arranging a plurality of magnets (13) in the tube (12) at regular intervals; and a step of fixing the magnets by heating the tube to heat-shrink.
Patent WO-2022230074-A1 (WO)
Inventor: AOSHIMA TATSUHIRO
IPC: G06F21/57
Filed: 2021-04-27
Abstract: 非安全箇所列挙部（１３１）は、プログラムのコードを基に、プログラムにおいて型のキャストが発生する箇所のうち、型変換が安全であることを示す所定の条件を満たさない箇所を列挙する。文脈抽出部（１３２）は、非安全箇所列挙部（１３１）によって列挙された箇所に応じたオートマトンを遷移させ、当該箇所に至る文脈を抽出する。脆弱性検証部（１３３）は、文脈抽出部（１３２）によって抽出された箇所が、あらかじめ用意されたアノテーションを満たすか否かを検証する。
Patent WO-2021230077-A1 (WO)
Title: 回路ユニット
Inventor: IGURA KOUSHI
IPC: B60R16/02
Filed: 2021-04-28
Abstract: 回路ユニットとワイヤハーネスとのコネクタ接続を可能にしつつ、回路ユニットの大型化を抑制して接続端子間の発熱を低減することができる、新規な構造の回路ユニットを開示する。　回路ユニット１０が、回路部材１２を収容するケース１４と、ケース１４に設けられて接続端子６８を有する外部接続用コネクタ１６と、回路部材１２を構成して接続端子６８に電気的に接続する通電用バスバー１８と、通電用バスバー１８に伝熱可能に設けられてケース１４に熱的に接触する伝熱部２０と、を備える。
Patent WO-2022004125-A1 (WO)
Title: Solid-state imaging element, imaging device, and method for controlling solid-state imaging element
Inventor: KOSAKA TAKURO
IPC: H04N5/378
Filed: 2021-05-07
Abstract: The present invention improves the image quality of image data in a solid-state imaging element which uses a comparator.　The solid-state imaging element is equipped with a current source, a pixel circuit, a comparator circuit, a control unit and a counter. The current source generates a constant electric current. The pixel circuit generates a pixel signal having a voltage which is higher than a prescribed lower-limit voltage corresponding to the conductance of the current source. The comparator circuit amplifies the pixel signal by a prescribed amplification factor and compares the same with a prescribed reference signal. The control unit decreases conductance as the amplification factor increases. The counter counts and outputs a discrete value throughout a time period lasting until the comparison results from the comparator circuit are reversed.
Patent WO-2021230175-A1 (WO)
Title: Plant disease control agent and plant disease control method
Inventor: SHIMIZU MASAFUMI
IPC: A01P3/00
Filed: 2021-05-10
Abstract: Provided are a plant disease control agent containing a compound capable of controlling a disease affecting a plant, and a method for using the same.　This plant disease control agent is characterized by containing arabinose. Although arabinose is effective against bacterial wilt in both forms of L-arabinose and D-arabinose, L-arabinose has a higher control effect. This plant disease control agent is effective in controlling, in particular, bacterial wilt and Fusarium wilt. This plant disease control method is characterized by comprising pouring an arabinose aqueous solution into a soil.
Patent WO-2021256139-A1 (WO)
Title: Cobalt-coated nickel-containing hydroxide particles
Inventor: HANAMURA Naoya
IPC: H01M4/52
Filed: 2021-05-17
Abstract: The present invention provides cobalt-coated nickel-containing hydroxide particles in which the specific volume resistance can be reduced by preventing the aggregation of the nickel-containing hydroxide particles when the cobalt coating on the nickel-containing hydroxide particles is subjected to an oxidation treatment.　The present invention specifically provides cobalt-coated nickel-containing hydroxide particles obtained by forming a coating layer that contains cobalt oxyhydroxide as a main component upon nickel-containing hydroxide particles, wherein: the nickel-containing hydroxide particles contain nickel (Ni), zinc (Zn), and at least one additional metal element M selected from the group consisting of cobalt (Co) and magnesium (Mg) at a molar percentage ratio nickel : zinc : additional metal element M of 100-x-y:x:y (1.50≤x≤9.00, 0.00≤y≤3.00); the volume-based particle size distribution as determined by a laser diffraction/scattering method has a maximum peak of a height a, has one peak at a height of (1/2)a or higher, and has a value A in formula (1) which is calculated from the maximum peak width b at the height of (1/2)a; the volume-based particle size distribution as determined by the laser diffraction/scattering method subsequent to a compression treatment with a pressing pressure of 64 MPa has a maximum peak of a height c, and has a value B in formula (2) which is calculated from the maximum peak width d at the height of (1/2)c; and the value B and the value A satisfy the relationship in formula (3).　Formula (1): A= [b×(1/2)a]/2
Formula (2): B=[d×(1/2)c]/2
Formula (3): -1.50≤[(B-A)/A]×100≤5.00
Patent WO-2022019001-A1 (WO)
Title: Evaluation device, evaluation method, and program
Inventor: UCHIYAMA AKIRA
IPC: H04N7/18
Filed: 2021-06-14
Abstract: An evaluation device (1) comprises: an image readout unit (12) for reading out an image; a position detection unit (13) for periodically detecting the position coordinate of a human image in the read out image; a distance calculation unit (14) for periodically calculating, for each person, the distance between one person and another person out of multiple persons; a timer (21); determination units (15,17) for periodically determining, for each person, whether the distance between persons is 2 m or less continuously for 3 seconds or not; a totalization unit (19) for successively adding, for each person, a period of at least 3 seconds in the case where the determination by the determination units is continuously affirmed to the previous totalized time and obtaining a new totalized time; and an evaluation unit (20) for performing, for each person, an evaluation on close contact according to the length of the time period totalized by the totalization unit. Accordingly, high accuracy close contact determination is performed on a person in motion.
Patent WO-2022009978-A1 (WO)
Title: Burring processing method, method for manufacturing burring processed article, die for burring processing, burring processing device, and burring processed article
Inventor: OTSUKA KENICHIRO
IPC: B21D19/08
Filed: 2021-07-09
Abstract: A burring processing method for forming a burring processing unit (110) including an upright part (120) and a curved part (130), a lower hole provided in a metal component being increased in diameter and a portion of the metal component being bent, wherein the burring processing method is characterized in that, in a cross-section that passes through the axis (cb) of the burring processing unit (110) and that is parallel to the axis (cb) of the burring processing unit (110), the cross-sectional shape in the inner surface of the curved part (130) forms a curve, and the length of the curved part (130) in a direction perpendicular to the axis (cb) of the burring processing part (110) is at least 1.2 times the height in the direction parallel to the axis (cb) of the burring processing part (110).
Patent WO-2023286206-A1 (WO)
Inventor: UHARA TAKEHIRO
IPC: H02K5/20
Filed: 2021-07-14
Abstract: Une enceinte (1) présente une structure de refroidissement dans laquelle de la chaleur générée par une source de chaleur (3), qui est logée dans un espace de logement (4) formé par une paroi d'enceinte (5), est dissipée vers l'extérieur de l'enceinte. La structure de refroidissement de l'enceinte comprend une structure en treillis (20) qui est formée de manière à être continue avec la surface externe (6) ou la surface interne (7) de la paroi d'enceinte, ou est formée de manière à être continue avec ni la surface externe ni la surface interne de la paroi d'enceinte et continue avec la paroi d'enceinte formant un passage de fluide frigorigène (10) à travers lequel s'écoule un fluide frigorigène. La structure en treillis (20) comprend : une structure en treillis de Delaunay (30) comprenant une pluralité de premières parties en forme de tige (22) pour former une pluralité de côtés de Delaunay (32) dans un diagramme de Delaunay tridimensionnel ; ou, une structure en treillis de Voronoi (40) comprenant une pluralité de premières parties en forme de tige (22) pour former des côtés d'une pluralité de polyèdres de Voronoi (43) formés uniquement par des surfaces de limite de Voronoi (42) dans un diagramme de Voronoi tridimensionnel.
Patent WO-2022113420-A1 (WO)
Title: ロボット及びプログラム
Inventor: FUTAGAWA MASAYASU
IPC: B25J15/04
Filed: 2021-07-15
Abstract: 新たなアプリケーションをロボット１で利用できる。可動部３０と、機能モジュール２９を脱着可能である取付部２８と、を有するロボット１であって、ロボット１の設定情報に応じて、可動部３０の動作を制御する制御手段４６と、取付部２８に取り付けられた機能モジュール２９の種類を認識する認識手段４２と、認識された機能モジュール２９の種類に応じて、前記設定情報を変更する変更手段４４と、を備える。
Patent WO-2022024829-A1 (WO)
Inventor: YOSHIKAWA TAKAHIRO
IPC: F21S6/00
Filed: 2021-07-19
Abstract: Provided is a tabletop lighting device in which a sense of oppressiveness and flickering of light are reduced. A tabletop lighting device having a light source and a light guide unit that includes a light guide plate, the light guide unit guiding light that has been emitted from the light source, wherein: the light guide plate has a light incidence surface on which light from the light source is incident, a first main surface from which light that was incident on the light incidence surface is emitted, and a second main surface opposite from the first main surface; the first main surface is positioned so as to be roughly perpendicular to an installation surface of the tabletop lighting device; and the angle at which maximum intensity is achieved in a light distribution of the light emitted from the first main surface is equal to or greater than −90° and less than 0°, where an axis that passes through the center of the first main surface and that is perpendicular to the installation surface is a perpendicular axis, and where, in a plane that includes the perpendicular axis and that is perpendicular to the installation surface, a direction parallel to the installation surface is perpendicular 0°, an angle having a higher orientation than the parallel direction is a positive angle, and an angle having a lower orientation than the parallel direction is a negative angle.
Patent WO-2023007554-A1 (WO)
Title: 通信システム、制御サーバ装置、制御方法、及びプログラム
Inventor: NAKAYAMA SHOTA
IPC: H04W16/24
Filed: 2021-07-26
Abstract: 制御サーバ装置と可動基地局装置とを備える通信システムであって、前記制御サーバ装置が、基地局位置評価指標が閾値以上となる位置のうち前記可動基地局装置の現在位置からの移動距離が最小となる位置、又は、前記可動基地局装置の現在位置からの移動距離が閾値以下となる位置のうち基地局位置評価指標が最大となる位置、を前記可動基地局装置の移動先位置として選定し、前記制御サーバ装置が、前記可動基地局装置を前記移動先位置へ移動させる制御を行う通信システム。
Patent WO-2022025051-A1 (WO)
Inventor: TAGUCHI TAKAO
IPC: B32B27/00
Filed: 2021-07-27
Abstract: The present invention is a method for manufacturing an optically anisotropic film controlled so that the tilt angle of a liquid crystal compound in the thickness direction is fixed. This method for manufacturing an optically anisotropic film is performed using a liquid crystal composition containing a polymeric liquid crystal compound that is responsive to electrical fields, wherein the method includes, in the stated order: a step 1 in which a photo-alignment composition is applied to a substrate to form a photo-alignment composition layer; a step 2 in which the surface of the photo-alignment composition layer is irradiated with collimated, non-polarized ultraviolet rays from an oblique direction; a step 3 in which a liquid crystal composition is applied to the photo-alignment composition layer that has been irradiated with ultraviolet rays to form a liquid crystal composition layer; a step 4 in which an electrical field is applied to the liquid crystal composition layer in a direction substantially parallel to the radiation direction of the ultraviolet rays in step 2 and at a temperature at which the liquid crystal composition in the liquid crystal composition layer reaches an aligned state; and a step 5 in which the liquid crystal composition layer is cured.
Patent WO-2022215282-A1 (WO)
Inventor: OHMIYA HIROYOSHI
IPC: A47G19/00
Filed: 2021-07-29
Abstract: L'invention concerne une unité de détection de poids qui permet de déplacer conjointement un récipient et un corps comprenant un capteur de poids, et d'améliorer la commodité. Cette unité de détection de poids comprend un corps (11) qui est fixé à la partie inférieure d'un récipient (15) et un capteur de poids (20) qui se situe dans le corps (11) et est destiné à détecter le poids du récipient (15). Le corps (11) se déplace d'un seul tenant avec le récipient (15) lorsque le récipient (15) est déplacé. Ce système permet de déplacer le corps (11), qui comprend le capteur de poids (20), et le récipient (15) conjointement, et d'améliorer la commodité.
Patent WO-2023007704-A1 (WO)
Title: 予測装置、予測方法、及び、予測プログラム
Inventor: LE Takeoki
IPC: G06F11/34
Filed: 2021-07-30
Abstract: サーバのワークロードを予測する予測装置１において、ワークロードの経時的な変動パターンが、線形パターンのみであるか、非線形パターンのみであるか、線形パターンと非線形パターンとを混在した線形・非線形パターンであるかを判別する判別部１２と、前記変動パターンが線形パターンのみの場合、複数の線形用の予測モデルを選択し、前記変動パターンが非線形パターンのみの場合、複数の非線形用の予測モデルを選択し、前記変動パターンが線形・非線形パターンの場合、線形用の予測モデルと非線形用の予測モデルとを選択し、選択した複数の予測モデルを組み合わせたアンサンブル予測を行うことで、前記ワークロードの未来の予測値を求める予測部１３と、を備える。
Patent WO-2022074923-A1 (WO)
Inventor: IZAWA KATSUTOSHI
IPC: H01B7/00
Filed: 2021-08-03
Abstract: ワイヤハーネス（１０）は、ワイヤハーネス本体（１１）の経路における直線部（１１ｓ）を規制する第１経路規制部材（２１）と、ワイヤハーネス本体（１１）の経路における屈曲部（１１ｃ）を規制する第２経路規制部材（３１）と、ワイヤハーネス本体（１１）の周方向において第２経路規制部材（３１）と係合する係合部材（５１）とを備える。第２経路規制部材（３１）は、凹部としての貫通孔（４５）を有している。第１挿入口（２２）内に配置された係合部材（５１）は、貫通孔（４５）に嵌合する凸部（５２）を有している。
Patent WO-2022190407-A1 (WO)
Title: Object recognition device and object processing device
Inventor: HIRAI YOSHITO
IPC: B65G47/28
Filed: 2021-08-05
Abstract: An object recognition device comprises a casing (51) for covering an imaging region (53) of a conveyance path (8) along which an object (85) is conveyed in a conveyance direction (12), an illumination device (62) for illuminating a subject disposed in the imaging region (53), a camera (61) for capturing an image of the subject, a light-shielding member (52) for covering an upstream-side region (56) adjacent to an upstream side in the conveyance direction (12) of the imaging region (53) of the conveyance path (8), and a light-shielding curtain (63) that is disposed at the upstream end of the upstream-side region (56) and suspended by the light-shielding member (52).
Patent WO-2023013057-A1 (WO)
Title: Terminal, wireless communication method, and base station
Inventor: MATSUMURA YUKI
IPC: H04W16/28
Filed: 2021-08-06
Abstract: A terminal according to an aspect of the present disclosure is characterized by having: a reception unit that receives one or more first radio resource control (RRC) information elements related to a transmission configuration indication (TCI) state list including a plurality of TCI states that can be applied to at least one of a plurality of types of channels and signals, and one or more second RRC information elements related to the configuration of one or more serving cells or one or more bandwidth parts; and a control unit that determines one or more TCI states associated with specific serving cells or specific bandwidth parts on the basis of the first RRC information elements and the second RRC information elements, and determines quasi-co-location (QCL) types included in the TCI states in the first RRC information elements on the basis of at least one of the channels and signals to which the one or more TCI states are to be applied, at least one of the one or more TCI states including at least two of information of a first QCL type, information of a second QCL type, information of a third QCL type, and information of a fourth QCL type. According to the aspect of the present disclosure, it is possible to suitably carry out a TCI state indication.
Patent WO-2022034867-A1 (WO)
Inventor: GOHDA Keisuke
IPC: C12N15/09
Filed: 2021-08-06
Abstract: 核酸増幅装置は、核酸増幅チップを載置する核酸増幅装置であって、変性温度帯、及び伸長・アニーリング温度帯を形成する温度調整部と、送液停止時に空気吸入部と空気吐出部の気圧が等しくなる送液機構と、核酸増幅チップ内の試料溶液を検出するための検出部と、検出部の検出結果に基づいて送液機構を制御する制御部と、を備え、検出部は、赤外線を発光する赤外線光源、及び赤外線を検出する赤外線検出素子を有する。
Patent WO-2022054517-A1 (WO)
Inventor: ITOH NAOAKI
IPC: G10H1/00
Filed: 2021-08-18
Abstract: In the present invention, a musical tone corresponding to a pressed first key is generated by synthesizing a musical tone that directly corresponds to a key number of the first key and resonance sounds that correspond to the key numbers of a plurality of second keys, the pitches of which are in a harmonic relationship with the pitch of the first key. 3, the generated resonance sounds corresponding to the key numbers of the second keys differ according to whether the second key is in a damped state or an undamped state. Specifically, when it is determined that the second key is in an undamped state, the resonance sound of the second key is generated by at least either a first resonance pitch or a first timbre, and when it is determined that the second key is in a damped state, the resonance sound of the second key is generated by at least, e.g., a second resonance pitch higher than the first resonance pitch and a second timbre. It is thereby possible to reproduce the characteristics of various actual acoustic pianos.
Patent WO-2022168356-A1 (WO)
Title: 光検出装置、および、測距システム
Inventor: TSUKUDA YASUNORI
IPC: H01L31/10
Filed: 2021-08-31
Abstract: 光の往復時間から距離を求める光検出装置、および、測距システムにおいて、デッドタイムを短縮しつつ、測距誤差を低減する。　論理ゲートは、アバランシェフォトダイオードのカソードおよびアノードの一方の端子の電圧に応じた入力電圧と所定の閾値電圧との比較結果に基づいて出力信号を出力する。電圧制限トランジスタは、入力電圧を制限する。急速充電トランジスタは、電圧制限トランジスタよりゲート酸化膜の膜厚が薄く、所定のパルス信号に従ってアバランシェフォトダイオードに充電電流を供給する。パルス生成部は、出力信号に基づいてパルス信号を生成して急速充電トランジスタに供給する。
Patent WO-2022113473-A1 (WO)
Inventor: TAKADA ATSUSHI
IPC: C22C38/08
Filed: 2021-09-09
Abstract: 本発明は、高強度で、耐高温割れ性と低温靭性にも優れた溶接継手を提供する。本発明では、6.5～10.0質量％Niを含む高Ni鋼板同士を、溶接により溶接金属部を形成して接合し溶接継手とする。前記溶接金属部を、極低温域においてもオーステナイト組織となるようにMnを13.0～25.0％含み、高温割れの発生を抑制するためにCrを3.8％以下に限定し、さらに、Ni：1.0～12.0％、Mo：0.1～5.0％、N：0.080％以下、O：0.100％以下含む溶接金属部組成としたうえで、鋼板の降伏強さBYSと溶接金属部の0.2％耐力WPSとが次式[WPS]≦[BYS]－100MPa……（１）、および、鋼板の引張強さBTSと溶接金属部の引張強さWTSとが次式[WTS]≦[BTS]＋100MPa……（２）を満足するように溶接金属部強度を調整する。これにより、溶接金属部および溶接ボンド部がともに、優れた低温靭性を保持することができる。
Patent WO-2022054898-A1 (WO)
Inventor: HYODO YOSHIHIRO
IPC: C22C38/00
Filed: 2021-09-10
Abstract: The purpose of the present invention is to provide a thick steel sheet that has high strength, superior elongation and fatigue crack propagation properties throughout the entire thickness thereof, and superior toughness, as well as a manufacturing method for the same. This thick steel sheet has a component composition including, by mass%, C: 0.05-0.20%, Si: 0.01-0.50%, Mn: 0.50-2.00%, P: 0.05% or less, and S: 0.02% or less, the remainder consisting of Fe and unavoidable impurities. The microstructure includes, by area ratio, 80% or more of a ferrite phase in the range from a surface to 100 μm below the surface in the sheet thickness direction, and includes, by area ratio, 80% or less of a ferrite phase in the range from 100 μm below the surface to a location at 1/4 of the sheet thickness in the sheet thickness direction, the remainder consisting of a pearlite phase or a mixed phase of a pearlite phase and a bainite phase, where the area ratio of the pearlite phase is greater than the area ratio of the bainite phase.