Patents by Inventor Yuji Arai
Yuji Arai has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11974042Abstract: A signal processing device includes an approximate curved surface conversion unit that includes a first stacked autoencoder pretrained on the basis of learning input data constituted by coordinate data acquired for each of multiple elements of an object, and that obtains approximate curved surface data indicating an approximate curved surface of the object in an intermediate layer of the first stacked autoencoder, on the basis of input data constituted by the coordinate data acquired for each of the elements, and a geometric modulation processing unit that includes a second stacked autoencoder having learned by machine learning on the basis of learning input data constituted by the approximate curved surface data and on the basis of training data constituted by a result obtained by coordinate conversion for each of the elements in a geometric modulation process performed for the object, and performs the geometric modulation process.Type: GrantFiled: April 20, 2021Date of Patent: April 30, 2024Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATIONInventors: Hiroshi Arai, Yuriko Ohtsuka, Kenichiro Nishi, Takeshi Masuura, Norimitsu Okiyama, Yuji Matsui, Satoshi Takashima
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Patent number: 11970015Abstract: A printer configured to print on a printing medium having an RFID, comprising a communication unit configured to communicate with the RFID, and a search unit configured to move the communication unit to a position with respect to the RFID to search for a position communicable with the RFID, wherein the search unit determines communication success/failure between the RFID and the communication unit at a plurality of positions with respect to the RFID, and on the basis of a region including a plurality of positions determined as the communication being successful, identifying a communication position between the RFID and the communication unit.Type: GrantFiled: February 3, 2020Date of Patent: April 30, 2024Assignee: SATO HOLDINGS KABUSHIKI KAISHAInventors: Hidekazu Arai, Yuji Saito
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Patent number: 11964402Abstract: In a robot control system, the operation of a mobile robot that moves autonomously inside a facility is controlled based at least on an image captured by a photographing device that photographs a blind area located at a blind angle to the mobile robot. When entry of the mobile robot into a predetermined area corresponding to the blind area is detected, the amount of information obtainable from an image captured by the photographing device is increased.Type: GrantFiled: November 11, 2021Date of Patent: April 23, 2024Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shiro Oda, Tetsuya Taira, Satoshi Toyoshima, Yuta Watanabe, Takeshi Matsui, Takayoshi Nasu, Kei Yoshikawa, Yusuke Ota, Yutaro Ishida, Yuji Onuma, Kyosuke Arai
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Publication number: 20240106249Abstract: A battery pack and a method of diagnosing a failure of an overcurrent detection circuit are provided to diagnosing the overcurrent detection circuit so as to maintain the overcurrent detection circuit in a safe state. A detection signal output from a current detection element connected to an output side of a battery unit is compared with a threshold value. An overcurrent is detected when the detection signal indicates an overcurrent value exceeding the threshold value. In the method, a failure of the overcurrent detection circuit is detected by inputting an overcurrent diagnostic signal to the overcurrent detection circuit.Type: ApplicationFiled: February 2, 2022Publication date: March 28, 2024Inventors: ATSUSHI SUYAMA, KAZUYA MAEGAWA, YUJI ARAI
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Patent number: 11926067Abstract: In a robot control system, the operation of a mobile robot that moves autonomously inside a facility is controlled based at least on an image captured by a photographing device that photographs a blind area located at a blind angle to the mobile robot. When entry of the mobile robot into a predetermined area corresponding to the blind area is detected, the amount of information obtainable from an image captured by the photographing device is increased.Type: GrantFiled: November 11, 2021Date of Patent: March 12, 2024Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shiro Oda, Tetsuya Taira, Satoshi Toyoshima, Yuta Watanabe, Takeshi Matsui, Takayoshi Nasu, Kei Yoshikawa, Yusuke Ota, Yutaro Ishida, Yuji Onuma, Kyosuke Arai
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Patent number: 11914363Abstract: A mobile robot receives first transmission information transmitted from a server device to manage the mobile robot in a state where wireless communication with the server device is possible, directly executes wireless communication with another mobile robot among the mobile robots and executes a reception process of receiving the first transmission information transmitted from the server device to manage the mobile robot from the other mobile robot in a case where wireless communication with the server device is not possible.Type: GrantFiled: December 7, 2021Date of Patent: February 27, 2024Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shiro Oda, Tetsuya Taira, Satoshi Toyoshima, Yuta Watanabe, Takeshi Matsui, Takayoshi Nasu, Kei Yoshikawa, Yusuke Ota, Yutaro Ishida, Yuji Onuma, Kyosuke Arai
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Patent number: 11914397Abstract: A robot control system according to the present embodiment is a robot control system that controls a plurality of mobile robots that can autonomously move in a facility. The robot control system acquires error information indicating that an error has occurred in a first transport robot, acquires transported object information related to a transported object of the first transport robot, determines a second transport robot able to transport the transported object of the first transport robot among the transport robots based on the transported object information and the error information, and moves the second transport robot to a transfer location of the transported object of the first transport robot.Type: GrantFiled: December 8, 2021Date of Patent: February 27, 2024Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shiro Oda, Tetsuya Taira, Satoshi Toyoshima, Yuta Watanabe, Takeshi Matsui, Takayoshi Nasu, Kei Yoshikawa, Yusuke Ota, Yutaro Ishida, Yuji Onuma, Kyosuke Arai
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Publication number: 20240065083Abstract: The present disclosure relates a display device that can enhance thermal diffusion performance of a display panel in its plane direction. The display device includes a plate-shaped display cell that displays an image, and a thin plate-shaped heat conduction member stuck on a rear face side of the display cell. The heat conduction member is formed with a thickness of approximately 0.3 to 1.0 mm. The technology according to the present disclosure can be applied, for example, to a television receiver or a display in which an OLED cell is used.Type: ApplicationFiled: December 21, 2021Publication date: February 22, 2024Applicant: Sony Group CorporationInventors: Yoshinori Ikuma, Song Han, Yohei Shimizu, Yoshimi Saito, Yuji Arai, Tomio Aoki, Yasutake Furukoshi
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Patent number: 11905580Abstract: The seamless steel pipe according to the present disclosure has a chemical composition consisting of, in mass %, C: 0.15 to 0.45%, Si: 0.05 to 1.00%, Mn: 0.01 to 1.00%, P: 0.030% or less, S: 0.0050% or less, Al: 0.005 to 0.070%, Cr: 0.30 to 1.50%, Mo: 0.25 to 2.00%, Ti: 0.002 to 0.020%, Nb: 0.002 to 0.100%, B: 0.0005 to 0.0040%, rare earth metal: 0.0001 to 0.0015%, Ca: 0.0001 to 0.0100%, N: 0.0100% or less and O: 0.0020% or less, with the balance being Fe and impurities, and satisfying Formula (1) described in the description. A predicted maximum major axis of inclusions is 150 ?m or less, the predicted maximum major axis being predicted by means of extreme value statistical processing. The yield strength is within a range of 758 to 862 MPa.Type: GrantFiled: September 26, 2019Date of Patent: February 20, 2024Assignee: NIPPON STEEL CORPORATIONInventors: Hiroki Kamitani, Nobuaki Komatsubara, Seiya Okada, Atsushi Soma, Yuji Arai, Shinji Yoshida
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Patent number: 11898216Abstract: A seamless steel pipe heat-treatment-finishing-treatment continuous facility includes: a heat treatment apparatus; a steel pipe inspection apparatus which performs a test for a surface defect and/or an inner defect of the seamless steel pipe, the steel pipe inspection apparatus being disposed downstream of the heat treatment apparatus; a main transfer mechanism which forms a main transfer path MT for transferring the seamless steel pipe, discharged from the heat treatment apparatus, to the steel pipe inspection apparatus disposed downstream of the heat treatment apparatus; and a first forced steel pipe-temperature reduction apparatus which forcibly reduces a temperature of the seamless steel pipe on the main transfer path MT, the first forced steel pipe-temperature reduction apparatus being disposed on the main transfer path MT at a position downstream of the heat treatment apparatus and upstream of the steel pipe inspection apparatus.Type: GrantFiled: March 26, 2019Date of Patent: February 13, 2024Assignee: NIPPON STEEL CORPORATIONInventors: Hiroki Kamitani, Takanori Tanaka, Atsushi Soma, Keiichi Kondo, Hideki Mitsunari, Seiya Okada, Takuya Matsumoto, Shinji Yoshida, Yuji Arai
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Patent number: 11891680Abstract: A steel material according to the present disclosure has a chemical composition consisting of, in mass %: C: 0.15 to 0.45%, Si: 0.05 to 1.00%, Mn: 0.01 to 1.00%, P: 0.030% or less, S: 0.0050% or less, Al: 0.005 to 0.100%, Cr 0.55 to 1.10%, Mo: 0.70 to 1.00%, Ti: 0.002 to 0.020%, V: 0.05 to 0.30%, Nb: 0.002 to 0.100%, B: 0.0005 to 0.0040%, N: 0.0100% or less, O: less than 0.0020%, and the balance being Fe and impurities, and satisfying Formula (1) described in the specification. A grain diameter of a prior-austenite grain is 15.0 ?m or less, and an average area of precipitate which is precipitated in a prior-austenite grain boundary is 12.5×10?3 ?m2 or less. A yield strength is 758 to 862 MPa.Type: GrantFiled: February 13, 2020Date of Patent: February 6, 2024Assignee: NIPPON STEEL CORPORATIONInventors: Yohei Otome, Hiroki Kamitani, Atsushi Soma, Taro Oe, Nobuaki Komatsubara, Yuji Arai, Hideki Takabe
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Publication number: 20230366070Abstract: The steel material according to the present disclosure contains, in mass %, C: 0.20 to 0.45%, Si: 1.36 to 3.20%, Mn: 0.02 to 1.00%, P: 0.025% or less, S: 0.0100% or less, Al: 0.005 to 0.100%, Cr: 0.20 to 1.50%, Mo: 0.36 to 1.50%, V: 0.01 to 0.90%, Ti: 0.002 to 0.050%, B: 0.0001 to 0.0050%, N: 0.0100% or less, and O: 0.0100% or less, and satisfies Formula (1). A yield strength ?YS is 758 MPa or more. The yield strength ?YS and a dislocation density ? satisfy Formula (2).Type: ApplicationFiled: October 29, 2021Publication date: November 16, 2023Inventors: Shinji YOSHIDA, Yuji ARAI, Hiroyuki FUJI
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Patent number: 11773460Abstract: The steel pipe according to the present disclosure contains a chemical composition consisting of, in mass %, C: 0.25 to 0.50%, Si: 0.05 to 0.50%, Mn: 0.05 to 1.00%, P: 0.025% or less, S: 0.0050% or less, Al: 0.005 to 0.100%, Cr: 0.30 to 1.50%, Mo: 0.25 to 3.00%, Ti: 0.002 to 0.050%, N: 0.0010 to 0.0100% and O: 0.0030% or less, with the balance being Fe and impurities. The steel pipe contains an amount of dissolved C within a range of 0.010 to 0.050 mass %. The tensile yield strength in the axial direction and the circumferential direction is 862 to 965 MPa, and the yield ratio in the axial direction is 90% or more. The tensile yield strength in the circumferential direction is 30 to 80 MPa higher than the compressive yield strength in the circumferential direction.Type: GrantFiled: March 22, 2019Date of Patent: October 3, 2023Assignee: NIPPON STEEL CORPORATIONInventors: Yuji Arai, Shinji Yoshida, Atsushi Soma, Hiroki Kamitani
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Publication number: 20230203631Abstract: The steel material according to the present disclosure consists of, in mass%, C: 0.15 to 0.45%, Si: 0.05 to 1.00%, Mn: 0.05 to less than 0.80%, P: 0.030% or less, S: 0.0100% or less, Al: 0.100% or less, Cr: 0.30 to 1.50%, Mo: 0.25 to 2.00%, Ti: 0.001 to 0.015%, N: 0.0100% or less, O: 0.0050% or less, V: 0 to 0.05%, Nb: 0 to 0.010%, B: 0 to less than 0.0005%, Ca: 0 to 0.0100%, Mg: 0 to 0.0100%, and rare earth metal: 0 to 0.0100%, with the balance being Fe and impurities. In the steel material, the grain size number of prior-austenite grains is less than 7.0, Formula (1) to Formula (4) described in the specification are satisfied, the yield strength is 896 MPa or more, and the absorbed energy at -10° C. is 95 J or more.Type: ApplicationFiled: April 15, 2021Publication date: June 29, 2023Inventors: Keiichi KONDO, Yuji ARAI, Keiichi NAKAMURA, Taro OE, Takenori KURAMOTO, Yosuke TAKEDA, Hiroki KAMITANI
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Patent number: 11643712Abstract: The steel pipe according to the present disclosure contains a chemical composition consisting of, in mass %, C: more than 0.50 to 0.65%, Si: 0.05 to 0.50%, Mn: 0.05 to 1.00%, P: 0.025% or less, S: 0.0050% or less, Al: 0.005 to 0.100%, Cr: 0.30 to 1.50%, Mo: 0.25 to 3.00%, Ti: 0.002 to 0.050%, N: 0.0010 to 0.0100% and O: 0.0030% or less, with the balance being Fe and impurities. The steel pipe contains an amount of dissolved C within a range of 0.010 to 0.060 mass %. The tensile yield strength in the axial direction and the circumferential direction is 862 to 1069 MPa, and the yield ratio in the axial direction is 90% or more. The tensile yield strength in the circumferential direction is 30 to 80 MPa higher than the compressive yield strength in the circumferential direction.Type: GrantFiled: March 22, 2019Date of Patent: May 9, 2023Assignee: NIPPON STEEL CORPORATIONInventors: Yuji Arai, Shinji Yoshida, Atsushi Soma, Hiroki Kamitani
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Patent number: 11492688Abstract: The steel material according to the present disclosure has a chemical composition consisting of, in mass %, C: 0.20 to 0.35%, Si: 0.05 to 1.00%, Mn: 0.01 to 1.00%, P: 0.025% or less, S: 0.0100% or less, Al: 0.005 to 0.100%, Cr 0.25 to 0.80%, Mo: 0.20 to 2.00%, Ti: 0.002 to 0.050%, B: 0.0001 to 0.0050%, N: 0.0020 to 0.0100% and O: 0.0100% or less, with the balance being Fe and impurities, and satisfying Formula (1). A number density of precipitates having an equivalent circular diameter of 400 nm or more is 0.150 particles/?m2 or less. The yield strength is within a range of 655 to 965 MPa. A dislocation density ? is 7.0×1014 m?2 or less. 5×Cr—Mo-2×(V+Ti)?3.Type: GrantFiled: September 26, 2019Date of Patent: November 8, 2022Assignee: NIPPON STEEL CORPORATIONInventors: Shinji Yoshida, Yuji Arai
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Patent number: 11473177Abstract: The steel material according to the present disclosure has a chemical composition consisting of, in mass %, C: 0.10 to 0.60%, Si: 0.05 to 1.00%, Mn: 0.05 to 1.00%, P: 0.025% or less, S: 0.0100% or less, Al: 0.005 to 0.100%, Cr: 0.20 to 1.50%, Mo: 0.25 to 1.50%, V: 0.01 to 0.60%, Ti: 0.002 to 0.050%, B: 0.0001 to 0.0050%, N: 0.0020 to 0.0100%, and O: 0.0100% or less, with the balance being Fe and impurities. A dislocation density ? is 3.5×1015 m?2 or less. Among fine precipitates, the numerical proportion of precipitates for which a ratio of the Mo content is not more than 50% is 15% or more. The yield strength is in a range of 655 to 1172 MPa.Type: GrantFiled: February 26, 2019Date of Patent: October 18, 2022Assignee: NIPPON STEEL CORPORATIONInventors: Shinji Yoshida, Yuji Arai
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Patent number: 11471923Abstract: The production method of a seamless steel pipe includes a heating step of heating an Nb-containing steel material to 800 to 1030° C., a pipe-making step of producing a hollow shell by performing piercing-rolling or elongation-rolling on the Nb-containing steel material, by using a piercing mill including a plurality of skewed rolls, a plug disposed between the plurality of skewed rolls, and a mandrel bar, and a cooling step immediately after rolling, of carrying out cooling using a cooling liquid on a hollow shell portion that passes between rear ends of the plurality of skewed rolls, in the hollow shell, so as to reduce an outer surface temperature of the hollow shell portion to 700 to 1000° C. within 15.0 seconds after the hollow shell portion passes between the rear ends of the plurality of skewed rolls.Type: GrantFiled: November 28, 2018Date of Patent: October 18, 2022Assignee: NIPPON STEEL CORPORATIONInventors: Kouji Yamane, Kazuhiro Shimoda, Yuji Arai, Akihiro Sakamoto, Yasuhiko Daimon, Haruka Obe
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Publication number: 20220325393Abstract: The steel material according to the present disclosure has a chemical composition consisting of, in mass %, C: more than 0.20 to 0.35%, Si: 0.05 to 1.00%, Mn: 0.02 to 1.00%, P: 0.025% or less, S: 0.0100% or less, Al: 0.005 to 0.100%, Cr: 0.40 to 1.50%, Mo: 0.30 to 1.50%, Ti: 0.002 to 0.050%, B: 0.0001 to 0.0050%, N: 0.0100% or less and O: 0.0100% or less, with the balance being Fe and impurities, and satisfies Formula (1) and Formula (2) described in the description. The yield strength is 862 MPa or more. A numerical proportion of precipitates having an equivalent circular diameter within a range of 20 to 300 nm among precipitates having an equivalent circular diameter of 20 nm or more in the steel material is 0.85 or more.Type: ApplicationFiled: August 13, 2020Publication date: October 13, 2022Inventors: Shinji YOSHIDA, Yuji ARAI, Kuniaki ITOH, Takuya OKAMURA
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Patent number: 11453925Abstract: A seamless steel pipe is provided that has a chemical composition which consists of, by mass %, C: 0.10 to 0.20%, Si: 0.05 to 1.0%, Mn: 0.05 to 1.2%, P?0.025%, S?0.005%, Cu?0.20%, N?0.007%, Ni: 0.20 to 0.50%, Cr: 0.30% or more and less than 0.50%, Mo: 0.30 to 0.50%, Nb: 0.01 to 0.05%, Al: 0.001 to 0.10%, B: 0.0005 to 0.0020%, Ti: 0.003 to 0.050%, V: 0.01 to 0.20%, a total of any one or more elements among Ca, Mg and REM: 0 to 0.025%, and the balance: Fe and impurities, and for which Pcm (=C+(Si/30)+(Mn/20)+(Cu/20)+(Ni/60)+(Cr/20)+(Mo/15)+(V/10)+5B)?0.30. The steel micro-structure includes, in area %, tempered martensite ?90%. The tensile strength is 980 MPa or more, and a Charpy impact value at ?40° C. using a 2 mm V-notch test specimen is 75 J/cm2 or more.Type: GrantFiled: July 28, 2017Date of Patent: September 27, 2022Assignee: Nippon Steel CorporationInventors: Takeshi Miki, Yuji Arai, Yusuke Mihara, Yohsuke Uchida, Masahiro Yamazaki, Masayuki Yamamoto