Patents by Inventor Ryo Nakazawa
Ryo Nakazawa 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: 20240059913Abstract: An object of the present invention is to provide a hot-melt fluorine resin powder coating composition containing a filler, which has a large film thickness that can be coated once, a large limit film thickness for an overcoating, and can be thickly coated. The present invention is a powder coating composition, which is a powder mixture, containing: first hot-melt fluorine resin particles having an average particle diameter of 2 to 100 ?m in which a filler is dispersed in the particles; second hot-melt fluorine resin particles having an average particle diameter of 10 to 200 ?m; and charge controlling agent particles.Type: ApplicationFiled: February 22, 2022Publication date: February 22, 2024Applicants: THE CHEMOURS COMPANY FC, LLC, CHEMOURS-MITSUI FLUOROPRODUCTS CO., LTDInventors: RYO NAKAZAWA, MASAHIRO TAKEYAMA, HOAI-NAM PHAM, SHUTARO KAMEYAMA
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Publication number: 20240026999Abstract: An electric resistance welded steel pipe and a method for manufacturing the same are provided. The present invention relates to an electric resistance welded steel pipe including a base metal zone and a weld. In the electric resistance welded steel pipe, steel microstructures at a wall-thickness-wise middle of the base metal zone are steel microstructures in which a bcc phase is present in a volume fraction greater than or equal to 80%, an average grain size is less than or equal to 15.0 ?m, and an A value, defined by a predetermined equation, is 0.55 or greater and 0.85 or less; a yield ratio in a pipe axis direction is less than or equal to 90%; and a Charpy absorbed energy at ?40° C. of the base metal zone is greater than or equal to 100 J.Type: ApplicationFiled: September 15, 2021Publication date: January 25, 2024Applicant: JFE Steel CorporationInventors: Akihide Matsumoto, Ryo Nakazawa, Atsushi Matsumoto, Shinsuke Ide
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Publication number: 20230141285Abstract: An electric resistance welded steel pipe having excellent formability and torsional fatigue resistance and a method for manufacturing the same. The electric resistance welded steel pipe includes a seam region and a base metal region, the seam region having a range of ±10 degrees in a pipe circumferential direction with respect to an electric resistance welded seam formed in a pipe longitudinal direction, the base metal region being a region other than the seam region. The electric resistance welded steel pipe has an r-value in the pipe longitudinal direction of 1.0 or greater, H (mm) and W (mm) satisfy a specified formula, and Ts(MAX) (mm) and Tb(Ave) (mm) satisfy a specified formula.Type: ApplicationFiled: March 15, 2021Publication date: May 11, 2023Applicant: JFE STEEL CORPORATIONInventors: Ryo NAKAZAWA, Hiroyuki SHIROSAWA, Shinsuke IDE
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Publication number: 20230071952Abstract: The present invention provides a decorative sheet having extremely excellent design properties where a picture pattern of a picture layer harmonizes with depressions. The present invention relates to a decorative sheet including: a substrate; a picture layer; and a transparent resin layer, the decorative sheet including at least the picture layer and the transparent resin layer in a stated order on one side of the substrate, the picture layer including a characteristic portion and a non-characteristic portion, the transparent resin layer having a depression (D1) harmonizing with the characteristic portion of the picture layer on a side opposite to a side facing the picture layer, the picture layer having a depression (D2) positioned in a lamination direction of the depression (D1) on a side opposite to a side facing the substrate, the depression (D1) having a depth H greater than a depth h of the depression (D2).Type: ApplicationFiled: January 22, 2021Publication date: March 9, 2023Applicant: Dai Nippon Printing Co., Ltd.Inventors: Yuichi Isemori, Takaya Oono, Masatoshi Tabata, Kazuha Ootake, Seiji Tanisada, Yasuhiro Suzuki, Yuji Oohara, Yuki Takagi, Ryo Nakazawa
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Publication number: 20220390044Abstract: An electric resistance welded steel pipe, and a method for manufacturing the same are provided. An electric resistance welded steel pipe has a welded portion that includes a heat-affected zone having a steel microstructure principally including a bainitic ferrite phase and/or a bainite phase. The steel microstructure at half the wall thickness includes a bainitic ferrite phase and/or a bainite phase in a total area ratio of 90% or more. In the steel microstructure located 1 mm in the wall thickness direction, the bainitic ferrite phase and/or the bainite phase has an average grain size of 20 ?m or less. The average grain size of the bainitic ferrite phase and/or the bainite phase located 1 mm in the wall thickness direction is 0.5 times or more and 2 times or less the average grain size of the bainitic ferrite phase and/or the bainite phase at half the wall thickness.Type: ApplicationFiled: November 11, 2020Publication date: December 8, 2022Applicant: JFE Steel CorporationInventors: Atsushi Matsumoto, Ryo Nakazawa, Jun Yasuda, Eiichi Urahata
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Coating composition, method for manufacturing film using the same, and coated article using the same
Patent number: 10435581Abstract: Provided are a chromium-free fluoropolymer-containing primer composition, which can provide a coated article having excellent higher corrosion resistance by forming a fluoropolymer coating film, and a primer layer having sufficient adhesive strength to the fluoropolymer coating film on the surface of a substrate such as metal, glass, ceramic and heat resistant plastics, a method for manufacturing a coating film using the same, and a coated article using the same. The coating composition contains at least one kind of a fluoropolymer component selected from a reactive functional group-containing fluoropolymer, and a fluoropolymer having a melt flow rate (MFR), measured under a load of 5 kg and at 372° C., in accordance with ASTM D1238, of 10 to 100 g/10 minutes, and an organic titanate, wherein content of titanium contained in the organic titanate, relative to the fluoropolymer component, is 1 to 40% by weight.Type: GrantFiled: February 13, 2017Date of Patent: October 8, 2019Assignees: NIPPON FUSSO CO., LTD., DU PONT-MITSUI FLUOROCHEMICALS CO., LTD.Inventors: Naoki Fukumura, Masahiro Takeyama, Ryo Nakazawa -
COATING COMPOSITION, METHOD FOR MANUFACTURING FILM USING THE SAME, AND COATED ARTICLE USING THE SAME
Publication number: 20170152395Abstract: Provided are a chromium-free fluoropolymer-containing primer composition, which can provide a coated article having excellent higher corrosion resistance by forming a fluoropolymer coating film, and a primer layer having sufficient adhesive strength to the fluoropolymer coating film on the surface of a substrate such as metal, glass, ceramic and heat resistant plastics, a method for manufacturing a coating film using the same, and a coated article using the same. The coating composition contains at least one kind of a fluoropolymer component selected from a reactive functional group-containing fluoropolymer, and a fluoropolymer having a melt flow rate (MFR), measured under a load of 5 kg and at 372° C., in accordance with ASTM D1238, of 10 to 100 g/10 minutes, and an organic titanate, wherein content of titanium contained in the organic titanate, relative to the fluoropolymer component, is 1 to 40% by weight.Type: ApplicationFiled: February 13, 2017Publication date: June 1, 2017Applicants: Nippon Fusso Co., Ltd., Du Pont-Mitsui Fluorochemicals Co., Ltd.Inventors: Naoki Fukumura, Masahiro Takeyama, Ryo Nakazawa -
Publication number: 20140209448Abstract: A stripping system includes: a boiler which generates steam by heating water; a first heat exchanger (latent heat exchanger) which collects latent heat of the steam generated by the boiler, and thereby condenses the steam into condensed water; a second heat exchanger (sensible heat exchanger) which collects sensible heat of the condensed water, and thereby heats untreated water absorbing ammonia; and a stripping tower which receives the heated untreated water introduced therein, and vaporizes the ammonia from the heated untreated water.Type: ApplicationFiled: December 17, 2013Publication date: July 31, 2014Applicant: IHI CorporationInventors: Ryo NAKAZAWA, Koichi Yuasa
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COATING COMPOSITION, METHOD FOR MANUFACTURING FILM USING THE SAME, AND COATED ARTICLE USING THE SAME
Publication number: 20130004755Abstract: A chromium-free fluoropolymer-containing primer composition, which can provide a coated article having excellent higher corrosion resistance by forming a fluoropolymer coating film, and a primer layer having sufficient adhesive strength to the fluoropolymer coating film on the surface of a substrate such as metal, glass, ceramic and heat resistant plastics, a method for manufacturing a coating film using the same, and a coated article using the same. The coating composition contains at least one kind of a fluoropolymer component selected from a reactive functional group-containing fluoropolymer, and a fluoropolymer having a melt flow rate (MFR), measured under a load of 5 kg and at 372° C., in accordance with ASTM D1238, of 10 to 100 g/10 minutes, and an organic titanate, wherein content of titanium contained in the organic titanate, relative to the fluoropolymer component, is 1 to 40% by weight.Type: ApplicationFiled: March 22, 2011Publication date: January 3, 2013Applicants: DU PONT-MITSUI FLUOROCHEMICALS CO., LTD.,, NIPPON FUSSO CO., LTD.Inventors: Naoki Fukumura, Masahiro Takeyama, Ryo Nakazawa