Patents by Inventor Hayato Tsuda
Hayato Tsuda 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: 20230415387Abstract: Provided is an injection molded article containing a copolymer containing tetrafluoroethylene unit and a fluoro(alkyl vinyl ether) unit, wherein the content of the fluoro(alkyl vinyl ether) unit of the copolymer is 4.7 to 7.0% by mass with respect to the whole of the monomer units, the melt flow rate at 372° C. of the copolymer is 11.0 to 22.0 g/10 min, the melting point of the copolymer is 296 to 305° C., and the amount of fluorine ions dissolving out from the injection molded article into water is 7,500 ?g/m2 or lower.Type: ApplicationFiled: August 15, 2023Publication date: December 28, 2023Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Hiroyuki HAMADA, Hayato TSUDA, Tadaharu ISAKA, Yukari YAMAMOTO, Yumi ZENKE
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Publication number: 20230411752Abstract: A sealing member that exhibits both the effect of suppressing permeation and leakage of an electrolytic solution and the effect of decreasing the incidence of damage to the sealing member is provided. A sealing member for a battery includes a non-aqueous electrolytic solution, where a material constituting the sealing member contains an elastic material. A compression rate R of the sealing member when attached is 50% or more. The sealing member satisfies Eb?a×?b, where Eb is an elongation at break of the material constituting the sealing member as measured in accordance with JIS K 6251, ? is a cross-sectional aspect ratio, a=6.919×R?2.066, and b=2.278×R?1.767.Type: ApplicationFiled: August 3, 2023Publication date: December 21, 2023Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Takeru Ushijima, Tomihiko Yanagiguchi, Hayato Tsuda
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Publication number: 20230406975Abstract: There is provided a copolymer containing tetrafluoroethylene unit and perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of perfluoro(propyl vinyl ether) unit of 4.9 to 5.7% by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 45.0 to 55.0 g/10 min, and the number of functional groups of 50 or less per 106 main-chain carbon atoms.Type: ApplicationFiled: August 15, 2023Publication date: December 21, 2023Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Tadaharu ISAKA, Yumi Zenke, Yukari Yamamoto, Hayato Tsuda
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Publication number: 20230406976Abstract: There is provided a copolymer containing tetrafluoroethylene unit and perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of perfluoro(propyl vinyl ether) unit of 4.9 to 7.0% by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 0.5 to 1.5 g/10 min, and the number of functional groups of 20 or less per 106 main-chain carbon atoms.Type: ApplicationFiled: August 17, 2023Publication date: December 21, 2023Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Tadaharu ISAKA, Yumi ZENKE, Yukari YAMAMOTO, Hayato TSUDA, Yasuyuki YAMAGUCHI
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Publication number: 20230411751Abstract: A power storage assembly having a gasket containing a copolymer containing tetrafluoroethylene unit and a perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of the perfluoro(propyl vinyl ether) unit of 2.0 to 4.5% by mass with respect to the whole of the monomer units, a melt flow rate of 5 to 36 g/10 min, and the number of functional groups of —CF?CF2, —CF2H, —COF, —COOH, —COOCH3, —CONH2 and —CH2OH of more than 50 per 106 main-chain carbon atoms, wherein the gasket has a thickness of 0.5 to 2.5 mm.Type: ApplicationFiled: March 29, 2023Publication date: December 21, 2023Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Hayato TSUDA, Tadaharu ISAKA, Yumi ZENKE, Yukari YAMAMOTO, Takahisa AOYAMA
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Publication number: 20230399431Abstract: There is provided a copolymer containing tetrafluoroethylene unit and perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of perfluoro(propyl vinyl ether) unit of 2.8 to 3.9% by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 2.8 to 4.0 g/10 min, and the number of functional groups of 20 or less per 106 main-chain carbon atoms.Type: ApplicationFiled: August 17, 2023Publication date: December 14, 2023Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Tadaharu ISAKA, Yumi Zenke, Yukari Yamamoto, Hayato Tsuda, Tatsuya Higuchi
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Publication number: 20230399438Abstract: There is provided a copolymer containing tetrafluoroethylene unit and perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of perfluoro(propyl vinyl ether) unit of 2.14 to 3.00 mol % with respect to the whole of the monomer units, a melt flow rate at 372° C. of 33.0 to 50.0 g/10 min, and the number of functional groups of 50 or less per 106 main-chain carbon atoms.Type: ApplicationFiled: August 18, 2023Publication date: December 14, 2023Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Tadaharu ISAKA, Yumi Zenke, Yukari Yamamoto, Hayato Tsuda
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Publication number: 20230399441Abstract: There is provided a copolymer containing tetrafluoroethylene unit and a perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of the perfluoro(propyl vinyl ether) unit of 4.1 to 4.9% by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 33.0 to 45.0 g/10 min, and the number of functional groups of 50 or less per 106 main-chain carbon atoms.Type: ApplicationFiled: August 21, 2023Publication date: December 14, 2023Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Tadaharu ISAKA, Yumi Zenke, Yukari Yamamoto, Hayato Tsuda
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Publication number: 20230399443Abstract: There is provided a copolymer containing tetrafluoroethylene unit and perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of perfluoro(propyl vinyl ether) unit of 4.6 to 5.2% by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 22.0 to 28.0 g/10 min, and the number of functional groups of 50 or less per 106 main-chain carbon atoms.Type: ApplicationFiled: August 23, 2023Publication date: December 14, 2023Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Tadaharu ISAKA, Yumi ZENKE, Yukari YAMAMOTO, Hayato TSUDA
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Publication number: 20230399432Abstract: There is provided a copolymer containing tetrafluoroethylene unit and perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of perfluoro(propyl vinyl ether) unit of 4.8 to 6.2% by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 17.0 to 23.0 g/10 min, and the number of functional groups of 50 or less per 106 main-chain carbon atoms.Type: ApplicationFiled: August 17, 2023Publication date: December 14, 2023Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Tadaharu ISAKA, Yumi ZENKE, Yukari YAMAMOTO, Hayato TSUDA, Yasuyuki YAMAGUCHI
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Publication number: 20230391933Abstract: There is provided a copolymer containing tetrafluoroethylene unit and perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of perfluoro(propyl vinyl ether) unit of 3.5 to 4.2% by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 18.0 to 22.0 g/10 min, and the number of functional groups of 50 or less per 106 main-chain carbon atoms.Type: ApplicationFiled: August 23, 2023Publication date: December 7, 2023Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Tadaharu ISAKA, Yumi ZENKE, Yukari YAMAMOTO, Hayato TSUDA
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Publication number: 20230391931Abstract: There is provided a copolymer containing tetrafluoroethylene unit and perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of perfluoro(propyl vinyl ether) unit of 4.2 to 4.9% by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 19.0 to 27.0 g/10 min, and the number of functional groups of 50 or less per 106 main-chain carbon atoms.Type: ApplicationFiled: August 22, 2023Publication date: December 7, 2023Applicant: Daikin Industries, Ltd.Inventors: Tadaharu Isaka, Yumi Zenke, Yukari Yamamoto, Hayato Tsuda, Keizou Shiotsuki
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Publication number: 20230391920Abstract: There is provided a copolymer containing tetrafluoroethylene unit and perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of perfluoro(propyl vinyl ether) unit of 3.9 to 4.9% by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 4.0 to 9.0 g/10 min, and the number of functional groups of 40 or less per 106 main-chain carbon atoms.Type: ApplicationFiled: August 16, 2023Publication date: December 7, 2023Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Tadaharu ISAKA, Yumi Zenke, Yukari Yamamoto, Hayato Tsuda, Tatsuya Higuchi
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Publication number: 20230391932Abstract: There is provided a copolymer containing tetrafluoroethylene unit and perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of perfluoro(propyl vinyl ether) unit of 3.9 to 5.5% by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 2.8 to 4.0 g/10 min, and the number of functional groups of 20 or less per 106 main-chain carbon atoms.Type: ApplicationFiled: August 22, 2023Publication date: December 7, 2023Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Tadaharu ISAKA, Yumi ZENKE, Yukari YAMAMOTO, Hayato TSUDA
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Publication number: 20230391912Abstract: There is provided a copolymer containing tetrafluoroethylene unit and perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of perfluoro(propyl vinyl ether) unit of 4.6 to 5.1% by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 11.0 to 17.0 g/10 min, and the number of functional groups of 40 or less per 106 main-chain carbon atoms.Type: ApplicationFiled: August 15, 2023Publication date: December 7, 2023Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Tadaharu ISAKA, Yumi ZENKE, Yukari YAMANOTO, Hayato TSUDA, Takahisa AOYAMA
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Publication number: 20230390980Abstract: Provided is an injection molded article including a bottom surface section, and a side surface section erected from a peripheral edge of the bottom surface section, wherein the height from the bottom surface section of the side surface section is 3.8 cm or larger, the ratio of the height from the bottom surface section of the side surface section to the average thickness of the side surface section (height/thickness) is 19.0 or more, the load applied to the lower end section of the side surface section is 0.8 kPa or higher, the injection molded article contains a copolymer containing tetrafluoroethylene unit and a fluoro(alkyl vinyl ether) unit, the content of the fluoro(alkyl vinyl ether) unit of the copolymer is 4.5 to 6.0% by mass with respect to the whole of the monomer units, the melt flow rate at 372° C. of the copolymer is 35.0 to 60.0 g/10 min, and the number of functional groups of the copolymer is 50 or less.Type: ApplicationFiled: August 22, 2023Publication date: December 7, 2023Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Hayato TSUDA, Tadaharu ISAKA, Yuri ZENKE, Yukari YAMAMOTO, Yasuyuki YAMAGUCHI, Hiroyuki HAMADA
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Publication number: 20230391910Abstract: There is provided a copolymer containing tetrafluoroethylene unit and perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of perfluoro(propyl vinyl ether) unit of 2.51 to 2.92 mol % with respect to the whole of the monomer units, a melt flow rate at 372° C. of 19.0 to 33.0 g/10 min, and the number of functional groups of 50 or less per 106 main-chain carbon atoms.Type: ApplicationFiled: August 11, 2023Publication date: December 7, 2023Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Tadaharu ISAKA, Yumi Zenke, Yukari Yamamoto, Hayato Tsuda, Takashi Sekiguchi
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Publication number: 20230390981Abstract: Provided an injection molded article obtained by injection molding a copolymer using a mold provided with a gate, wherein the copolymer contains tetrafluoroethylene (TFE) unit and a fluoro(alkyl vinyl ether) (PAVE) unit, the content of the fluoro(alkyl vinyl ether) unit of the copolymer is 3.5 to 4.7% by mass with respect to the whole of the monomer units, the melt flow rate at 372° C. of the copolymer is 22.0 to 35.0 g/10 min, the number of functional groups of the copolymer is 20 or less per 106 main-chain carbon atoms, and the injection molded article has a gate section corresponding to the gate of the mold, and the ratio of the maximum flow length from the gate section of the injection molded article (a) to the average value of the product thickness on the maximum flow length (b), ((a)/(b)), is 80 to 200.Type: ApplicationFiled: August 22, 2023Publication date: December 7, 2023Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Hayato TSUDA, Tadaharu ISAKA, Yumi ZENKE, Yukari YAMAMOTO, Yasuyuki YAMAGUCHI, Hiroyuki HAMADA
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Publication number: 20230392737Abstract: Provided is a pipe joint including a cylindrical hollow, wherein the wall thickness of a part having the largest wall thickness of the pipe joint is 2 to 7 mm, the ratio of the length of the hollow in the axial direction (L) to the diameter of the hollow (D), (L/D), is 5 or less, the pipe joint contains a copolymer containing tetrafluoroethylene unit and a fluoro(alkyl vinyl ether) unit, the content of the fluoro(alkyl vinyl ether) unit of the copolymer is 2.8 to 6.0% by mass with respect to the whole of the monomer units, the melt flow rate at 372° C. of the copolymer is 4.0 g/10 min or higher and lower than 11.0 g/10 min, and the number of functional groups of the copolymer is 50 or less.Type: ApplicationFiled: August 22, 2023Publication date: December 7, 2023Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Hayato TSUDA, Tadaharu ISAKA, Yumi ZENKE, Yukari YAMAMOTO, Yasuyuki YAMAGUCHI, Hiroyuki HAMADA
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Publication number: 20230390979Abstract: Provided is an injection molded article including a pipe body section forming a flow path of a fluid, and a flange section formed on one end or both ends of the pipe body section, wherein the maximum thickness of the flange section is 2 to 12 mm, the injection molded article contains a copolymer containing tetrafluoroethylene unit and a fluoro(alkyl vinyl ether) unit, the content of the fluoro(alkyl vinyl ether) unit of the copolymer is 2.8 to 6.0% by mass with respect to the whole of the monomer units, the melt flow rate at 372° C. of the copolymer is 4.0 g/10 min or higher and lower than 11.0 g/10 min, and the number of functional groups of the copolymer is 50 or less.Type: ApplicationFiled: August 21, 2023Publication date: December 7, 2023Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Hayato TSUDA, Tadaharu Isaka, Yumi Zenke, Yukari Yamamoto, Yasuyuki Yamaguchi, Hiroyuki Hamada