Patents by Inventor Keito Ishizaki
Keito Ishizaki 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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Publication number: 20230294193Abstract: A sensor protecting case is provided with a case main body for housing a sensor main body and a sensor input portion, and a centralized cooling portion that is partitioned off by a partition so as to include at least part of the sensor input portion, and constitutes an independent space within the case main body. The case main body has a first gas inflow port for causing gas to flow into the case main body, and a first gas outflow port for causing the gas to flow out of the case main body. The partition has a second gas inflow port that is connected to the first gas inflow port to cause the gas to flow into the centralized cooling portion, and a second gas outflow port for causing the gas to flow out of the centralized cooling part into the case main body.Type: ApplicationFiled: September 3, 2021Publication date: September 21, 2023Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)Inventors: Junichi ONO, Naohide FURUKAWA, Keito ISHIZAKI
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Publication number: 20230241703Abstract: This learning model generation method is for generating a learning model for learning by taking, as teaching data, image data from a visual sensor and welding information extracted from the image data, wherein: a plurality of welding conditions to be used for generating the learning model correspond to the difference in setting pertaining to at least one item; the image data corresponding to each of the plurality of welding conditions includes at least one of a molten pool, a welding wire, and an arc; the welding information includes at least one of information pertaining to the behavior of the molten pool, information pertaining to the position of the welding wire, and information pertaining to the arc; and the learning model which receives the image data as an input and outputs the welding information is generated.Type: ApplicationFiled: March 29, 2021Publication date: August 3, 2023Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)Inventors: Naohide FURUKAWA, Keito ISHIZAKI, Takeshi KOIKE, Yuji KIMURA, Akira OKAMOTO, Keita OZAKI
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Patent number: 11691227Abstract: A solid wire for electroslag welding, including Fe and, by mass % based on a total mass of the wire: C: more than 0% and 0.03% or less; Si: more than 0% and 0.10% or less; Mn: more than 0% and 0.25% or less; Ni: 10.5%-14.0%; S: more than 0% and 0.010% or less; Al: more than 0% and 0.250% or less; REM: 0.002%-0.080%; and O: more than 0% and 0.0090% or less.Type: GrantFiled: May 17, 2019Date of Patent: July 4, 2023Assignee: Kobe Steel, Ltd.Inventors: Hidenori Nako, Tomoko Sugimura, Keito Ishizaki, Yoshihiko Kitagawa
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Publication number: 20230111990Abstract: A flux for electroslag welding used for electroslag welding may include a basic oxide, an amphoteric oxide, an acidic oxide, and a fluoride. With respect to a total mass of the flux, the basic oxide may include 5.1 mass % or more and 30.0 mass % or less of CaO, the acidic oxide includes 17 mass % or less of SiO2, and the fluoride includes 35 mass % or more and 73 mass % or less of CaF2. A content of the CaO is 30 mass % or more with respect to a total mass of the basic oxide, a content of the SiO2 is 80 mass % or more with respect to a total mass of the acidic oxide, a content of the CaF2 is 80 mass % or more with respect to a total mass of the fluoride, and a value of (2×[CaF2]+[CaO])/[SiO2] is 5 or more and 56 or less.Type: ApplicationFiled: February 24, 2021Publication date: April 13, 2023Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)Inventors: Keito ISHIZAKI, Yoshihiko KITAGAWA, Tomoko SUGIMURA, Tatsuya SASAKI, Hidenori NAKO
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Patent number: 11577346Abstract: Disclosed herein is an electroslag welding wire containing, by mass % based on total mass of the wire: C: more than 0% and 0.07% or less; Si: more than 0% and 0.50% or less; Mn: more than 0% and 1.0% or less; Ni: 6.0 to 15.0%; and Fe: 79% or more. The electroslag welding wire satisfies the following relationship (1): 0.150?C+Si/30+Mn/20+Ni/60?0.300 (1).Type: GrantFiled: September 4, 2017Date of Patent: February 14, 2023Assignee: Kobe Steel, Ltd.Inventors: Keito Ishizaki, Yimin Yuan, Hidenori Nako, Tomoko Sugimura, Yoshitomi Okazaki
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Publication number: 20220362892Abstract: A flux-cored wire comprising a flux which is a core and a hoop which is an outer skin or sheath is described. The flux includes a strong deoxidizing metal element containing Mg and Al, and a fluoride powder. At least 60 mass % of a strong deoxidizing metal powder related to the strong deoxidizing metal element has a grain size of at most 150 ?m. At least 60 mass % of the fluoride powder has a grain size of at most 75 ?m. The flux is present at a concentration of 10-30 mass % relative to a total mass of the flux-cored wire. The flux-cored wire also requires a specific composition of elements.Type: ApplicationFiled: June 9, 2020Publication date: November 17, 2022Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)Inventors: Keito ISHIZAKI, Takashi YASHIMA, Shun IZUTANI
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Publication number: 20220355421Abstract: An austenitic stainless steel flux cored wire may provide a welded metal having excellent cryogenic temperature toughness; a welded metal from the wire may have excellent cryogenic temperature toughness; and a welding method may involve such wire(s). An austenitic stainless steel flux cored wire in which a flux is filled in a steel-made shell. The flux cored wire may contain Si, Mn, Ni, Cr, C, P, and N in amounts each falling within a specified range relative to the entire mass of the wire, with the remainder made up by Fe and unavoidable impurities, and X1 is 17.5 to 22.0 inclusive, as calculated by formula (1): X1=[Ni]W+0.5×[Cr]W+1.6×[Mn]W+0.5×[Si]W+15×[C]W??(1), wherein, in formula (1), [Ni]W, [Cr]W, [Mn]W, [Si]W and [C]W represent the contents (% by mass) of Ni, Cr, Mn, Si, and C, relative to the entire mass of the wire.Type: ApplicationFiled: June 24, 2020Publication date: November 10, 2022Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)Inventors: Hidenori NAKO, Keito ISHIZAKI, Junichi KAWATA, Yuta KINOSHITA
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Publication number: 20210154777Abstract: A solid wire for electroslag welding, including Fe and, by mass % based on a total mass of the wire: C: more than 0% and 0.03% or less; Si: more than 0% and 0.10% or less; Mn: more than 0% and 0.25% or less; Ni: 10.5%-14.0%; S: more than 0% and 0.010% or less; Al: more than 0% and 0.250% or less; REM: 0.002%-0.080%; and O: more than 0% and 0.0090% or less.Type: ApplicationFiled: May 17, 2019Publication date: May 27, 2021Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)Inventors: Hidenori NAKO, Tomoko SUGIMURA, Keito ISHIZAKI, Yoshihiko KITAGAWA
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Publication number: 20190210165Abstract: A flux-cored wire for gas-shielded arc welding, contains, based on the total mass of the wire: C: from 0.03 to 0.12 mass %; Si in terms of Si in Si alloy and Si compound: from 0.10 to 0.50 mass %; Mn: from 1.0 to 4.0 mass %; Ti in terms of Ti in Ti alloy and Ti compound: from 2.4 to 4.5 mass %; Al: from 0.005 to 0.050 mass %; at least one of Ni: from 0.30 to 3.50 mass % and B: from 0.0008 to 0.012 mass %; and Fe: 80 mass % or more, and satisfies (Ti+Mn+Al)/Si?15.Type: ApplicationFiled: September 6, 2017Publication date: July 11, 2019Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)Inventors: Hidenori NAKO, Masaki SHIMAMOTO, Yoshitomi OKAZAKI, Masafumi YAMAKAMI, Shinya ISONO, Keito ISHIZAKI
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Publication number: 20190210164Abstract: Disclosed herein is a flux-cored wire for gas-shielded arc welding containing, based on total mass of the wire: C: from 0.03 to 0.12 mass %; Si in terms of Si in Si alloy and Si compound: from 0.20 to 0.70 mass %; Mn: from 1.0 to 4.0 mass %; Ti in terms of Ti in Ti alloy and Ti compound: from 2.4 to 4.5 mass %; Al: from 0.005 to 0.050 mass %; Ca: from 0.03 to 1.0 mass %; at least one of Ni: from 0.30 to 3.50 mass % and B: from 0.0008 to 0.012 mass %; and Fe: 80 mass % or more, and satisfies: (Ti+Mn+Al+Ca)/Si?12; and Ca/Si: from 0.07 to 0.35.Type: ApplicationFiled: September 6, 2017Publication date: July 11, 2019Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)Inventors: Hidenori NAKO, Masaki SHIMAMOTO, Yoshitomi OKAZAKI, Masafumi YAMAKAMI, Shinya ISONO, Keito ISHIZAKI
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Publication number: 20190210166Abstract: Disclosed herein is an electroslag welding wire containing, by mass % based on total mass of the wire: C: more than 0% and 0.07% or less; Si: more than 0% and 0.50% or less; Mn: more than 0% and 1.0% or less; Ni: 6.0 to 15.0%; and Fe: 79% or more. The electroslag welding wire satisfies the following relationship (1): 0.150?C±Si/30+Mn/20+Ni/60?0.300 (1).Type: ApplicationFiled: September 4, 2017Publication date: July 11, 2019Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel. Ltd.)Inventors: Keito ISHIZAKI, Yimin YUAN, Hidenori NAKO, Tomoko SUGIMURA, Yoshitomi OKAZAKI
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Patent number: 8124247Abstract: A high-strength steel pipe has a tensile strength of 800 MPa or more and includes a weld metal having high cold-cracking resistance and high low-temperature toughness, wherein the weld metal contains C: 0.04% to 0.09% by mass, Si: 0.32% to 0.50% by mass, Mn: 1.4% to 2.0% by mass, Cu: less than 0.5% by mass, Ni: more than 0.9% by mass but not more than 4.2% by mass, Mo: 0.4% to 1.5% by mass, Cr: less than 0.5% by mass, V: less than 0.2% by mass, and the remainder of Fe and incidental impurities, and CS values calculated from the weld metal components using the equation CS=5.1+1.4[Mo]?[Ni]?[Mn]?36.3[C] are equal to zero or more at both an internal surface and an external surface.Type: GrantFiled: March 19, 2008Date of Patent: February 28, 2012Assignees: JFE Steel Corporation, Kabushiki Kaisha Kobe Seiko ShoInventors: Naoya Hayakawa, Fumimaru Kawabata, Shuichi Sakaguchi, Mitsuhiro Okatsu, Makoto Ota, Shigeki Nishiyama, Kaoru Nagatani, Keito Ishizaki
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Publication number: 20100119861Abstract: A high-strength steel pipe having a tensile strength of 800 MPa or more that includes a weld metal having high cold-cracking resistance and high low-temperature toughness is provided. The high-strength steel pipe is a high-strength welded steel pipe in which the welded steel pipe is manufactured by double one layer submerged arc welding performed on an internal surface and an external surface of a base metal, both the base metal of the welded steel pipe and a weld metal have a tensile strength of 800 MPa or more, the weld metal contains C: 0.04% to 0.09% by mass, Si: 0.32% to 0.50% by mass, Mn: 1.4% to 2.0% by mass, Cu: less than 0.5% by mass, Ni: more than 0.9% by mass but not more than 4.2% by mass, Mo: 0.4% to 1.5% by mass, Cr: less than 0.5% by mass, V: less than 0.2% by mass, and the remainder of Fe and incidental impurities, and CS values calculated from the weld metal components using the equation CS=5.1+1.4[Mo]?[Ni]?0.6[Mn]?36.Type: ApplicationFiled: March 19, 2008Publication date: May 13, 2010Applicants: JFE STEEL CORPORATION, KABUSHIKI KAISHA KOBE SEIKO SHOInventors: Naoya Hayakawa, Fumimaru Kawabata, Shuichi Sakaguchi, Mitsuhiro Okatsu, Makoto Ota, Shigeki Nishiyama, Kaoru Nagatani, Keito Ishizaki