Patents by Inventor Yumi ZENKE
Yumi ZENKE 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: 20240018285Abstract: There is provided a fluorine-containing copolymer containing tetrafluoroethylene unit, hexafluoropropylene unit, and perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of hexafluoropropylene unit of 7.0 to 12.0% by mass with respect to the whole of the monomer units, a content of perfluoro(propyl vinyl ether) unit of 1.5 to 2.9% by mass with respect to the whole of the monomer units, and a melt flow rate at 372° C. of 40 to 60 g/10 min.Type: ApplicationFiled: August 21, 2023Publication date: January 18, 2024Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Tadaharu ISAKA, Yukari YAMAMOTO, Yumi ZENKE
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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: 20230416431Abstract: There is provided a fluorine-containing copolymer containing tetrafluoroethylene unit, hexafluoropropylene unit and a fluoro(alkyl vinyl ether) unit, wherein the copolymer has a content of hexafluoropropylene unit of 5.0 to 7.5% by mass with respect to the whole of the monomer units, a content of the fluoro(alkyl vinyl ether) unit of 0.8 to 2.9% by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 0.7 to 9.5 g/10 min, and the number of functional groups of 90 or less per 106 main-chain carbon atoms.Type: ApplicationFiled: August 17, 2023Publication date: December 28, 2023Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Tadaharu ISAKA, Yukari Yamamoto, Yumi Zenke
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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: 20230406977Abstract: There is provided a fluorine-containing copolymer containing tetrafluoroethylene unit, hexafluoropropylene unit, and perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of hexafluoropropylene unit of 7.0 to 9.4% by mass with respect to the whole of the monomer units, a content of perfluoro(propyl vinyl ether) unit of 1.5 to 2.9% by mass with respect to the whole of the monomer units, and a melt flow rate at 372° C. of 15 to 40 g/10 min.Type: ApplicationFiled: August 21, 2023Publication date: December 21, 2023Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Tadaharu ISAKA, Yukari YAMAMOTO, Yumi ZENKE
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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: 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: 20230399434Abstract: There is provided a fluorine-containing copolymer containing tetrafluoroethylene unit, hexafluoropropylene unit and a fluoro(alkyl vinyl ether) unit, wherein the copolymer has a content of hexafluoropropylene unit of 5.0 to 7.0% by mass with respect to the whole of the monomer units, a content of the fluoro(alkyl vinyl ether) unit of 1.4 to 2.9% by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 9 to 40 g/10 min, and the number of functional groups of 90 or less per 106 main-chain carbon atoms.Type: ApplicationFiled: August 18, 2023Publication date: December 14, 2023Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Tadaharu ISAKA, Yukari YAMAMOTO, Yumi ZENKE
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Publication number: 20230399435Abstract: There is provided a fluorine-containing copolymer containing tetrafluoroethylene unit, hexafluoropropylene unit, and a perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of hexafluoropropylene unit of 9.5 to 11.4% by mass with respect to the whole of the monomer units, a content of perfluoro(propyl vinyl ether) unit of 0.5 to 1.6% by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 4.1 to 6.9 g/10 min, and a total number of carbonyl group-containing terminal groups and —CF?CF2 and —CH2OH of 90 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
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Publication number: 20230399440Abstract: There is provided a fluorine-containing copolymer containing tetrafluoroethylene unit, hexafluoropropylene unit, and perfluoro(propyl vinyl ether) unit, wherein the content of hexafluoropropylene unit is 7.6 to 10.3% by mass with respect to the whole of the monomer units; the content of perfluoro(propyl vinyl ether) unit is 1.3 to 2.4% by mass with respect to the whole of the monomer units; and the melt flow rate at 372° C. is 4.5 to 9.5 g/10 min.Type: ApplicationFiled: August 21, 2023Publication date: December 14, 2023Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Tadaharu ISAKA, Yukari Yamamoto, Yumi Zenke
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Publication number: 20230399442Abstract: There is provided a fluorine-containing copolymer containing tetrafluoroethylene unit, hexafluoropropylene unit, and perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of hexafluoropropylene unit of 10.3 to 12.2% by mass with respect to the whole of the monomer units, a content of perfluoro(propyl vinyl ether) unit of 1.2 to 1.6% by mass with respect to the whole of the monomer units, and a melt flow rate at 372° C. of 13.0 to 17.0 g/10 min.Type: ApplicationFiled: August 22, 2023Publication date: December 14, 2023Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Tadaharu ISAKA, Yumi Zenke, Yukari Yamamoto
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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: 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: 20230399437Abstract: There is provided a fluorine-containing copolymer containing tetrafluoroethylene unit, hexafluoropropylene unit and a perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of the hexafluoropropylene unit of 9.6 to 10.5% by mass with respect to the whole of the monomer units, a content of the perfluoro(propyl vinyl ether) unit of 1.2 to 1.6% by mass with respect to the whole of the monomer units, and a melt flow rate at 372° C. of 17.0 to 40.0 g/10 min.Type: ApplicationFiled: August 18, 2023Publication date: December 14, 2023Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Tadaharu ISAKA, Yumi ZENKE, Yukari YAMAMOTO
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Publication number: 20230399436Abstract: There is provided a fluorine-containing copolymer containing tetrafluoroethylene unit, hexafluoropropylene unit, and a perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of hexafluoropropylene unit of 9.5 to 12.2% by mass with respect to the whole of the monomer units, a content of perfluoro(propyl vinyl ether) unit of 0.5 to 1.4% by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 0.8 to 4.0 g/10 min, and a number of —CF2H of more than 50 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
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Publication number: 20230399433Abstract: There is provided a fluorine-containing copolymer containing tetrafluoroethylene unit, hexafluoropropylene unit, and a fluoro(alkyl vinyl ether) unit, wherein the copolymer has a content of hexafluoropropylene unit of 11.5 to 12.5% by mass with respect to the whole of the monomer units, a content of the fluoro(alkyl vinyl ether) unit of 0 to 0.5% by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 0.8 to 4.0 g/10 min, and a total number of —CF2H, carbonyl group-containing terminal groups, —CF?CF2 and —CH2OH 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
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Publication number: 20230399428Abstract: There is provided a fluorine-containing copolymer comprising tetrafluoroethylene unit, hexafluoropropylene unit, and perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of hexafluoropropylene unit of 10.4 to 11.5% by mass with respect to the whole of the monomer units, a content of perfluoro(propyl vinyl ether) unit of 0.5 to 1.6% by mass with respect to the whole of the monomer units, a melt flow rate at 372° C. of 7.0 to 9.9 g/10 min, and a total number of —CF2H, carbonyl group-containing terminal groups, —CF?CF2 and —CH2OH of 90 or less per 106 main-chain carbon atoms.Type: ApplicationFiled: August 15, 2023Publication date: December 14, 2023Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Tadaharu ISAKA, Yumi Zenke, Yukari Yamamoto
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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: 20230399430Abstract: There is provided a fluorine-containing copolymer comprising tetrafluoroethylene unit, hexafluoropropylene unit, and a perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of the hexafluoropropylene unit of 4.10 to 5.20 mol % with respect to the whole of the monomer units, a content of the perfluoro(propyl vinyl ether) unit of 0.53 to 0.86 mol % with respect to the whole of the monomer units, and a melt flow rate at 372° C. of 0.7 to 2.5 g/10 min.Type: ApplicationFiled: August 17, 2023Publication date: December 14, 2023Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Tadaharu ISAKA, Yukari YAMAMOTO, Yumi ZENKE
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Publication number: 20230399429Abstract: There is provided a fluorine-containing copolymer comprising tetrafluoroethylene unit, hexafluoropropylene unit and a perfluoro(propyl vinyl ether) unit, wherein the copolymer has a content of the hexafluoropropylene unit of 9.4 to 10.3% by mass with respect to the whole of the monomer units, a content of the perfluoro(propyl vinyl ether) unit of 0.8 to 1.6% by mass with respect to the whole of the monomer units, and a melt flow rate at 372° C. of 7.0 to 17.0 g/10 min.Type: ApplicationFiled: August 16, 2023Publication date: December 14, 2023Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Tadaharu ISAKA, Yumi ZENKE, Yukari YAMAMOTO