Patents by Inventor Takeshi Shimono
Takeshi Shimono 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: 11826975Abstract: The invention provides a molded article containing a specific fluororesin and having excellent hydrophilicity. The molded article containing the fluororesin has a melt flow rate of 1.00 g/10 min or lower and a water contact angle of 90° or smaller. The fluororesin contains at least one copolymer selected from the group consisting of a copolymer containing a tetrafluoroethylene unit and a perfluoro(alkylvinylether) unit and a copolymer containing a tetrafluoroethylene unit and a hexafluoropropylene unit.Type: GrantFiled: August 10, 2017Date of Patent: November 28, 2023Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Hitoshi Imamura, Tatsuya Funaoka, Takeshi Shimono
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Patent number: 11072672Abstract: The invention provides a process for producing a modified molded article capable of providing a diaphragm that is less likely to generate particles. The process for producing a modified molded article includes: molding modified polytetrafluoroethylene containing a tetrafluoroethylene unit and a modifying monomer unit based on a modifying monomer copolymerizable with tetrafluoroethylene to provide a molded article; and irradiating the molded article with not lower than 30 kGy but lower than 70 kGy of radiation at 270° C. to 310° C. to provide a modified molded article.Type: GrantFiled: August 1, 2017Date of Patent: July 27, 2021Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Hitoshi Imamura, Tatsuya Funaoka, Takeshi Shimono
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Patent number: 11021556Abstract: Provided is a tetrafluoroethylene/hexafluoropropylene copolymer which is less likely to form a lump, or is less likely to form a large lump even if a lump is formed, during the formation of an electric wire. The tetrafluoroethylene/hexafluoropropylene copolymer has a melt flow rate measured at 372° C. of 35.0 to 45.0 g/10 minutes and a swell of ?8.0% to 5.0%, the sum of the numbers of —CF2H groups and unstable end groups being 120 or less per 1×106 carbon atoms.Type: GrantFiled: January 30, 2015Date of Patent: June 1, 2021Assignees: DAIKIN INDUSTRIES, LTD., DAIKIN AMERICA, INC.Inventors: Tadaharu Isaka, Ryouichi Fukagawa, Takeshi Shimono, Keizou Shiotsuki
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Publication number: 20200332037Abstract: An insulated communication wire comprising a conductive metal core wire and an insulative coating, which insulated communication wire may connect a computer with a peripheral device, and which insulated communication wire may be a data transmission cable or LAN cable.Type: ApplicationFiled: July 6, 2020Publication date: October 22, 2020Applicants: DAIKIN INDUSTRIES, LTD., DAIKIN AMERICA, INC.Inventors: Tadaharu ISAKA, Ryouichi Fukagawa, Takeshi Shimono, Keizou Shiotsuki
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Publication number: 20200262952Abstract: The invention provides novel pellets having high fluidity in a hopper of an extruder and capable of forming a coating layer having good wire diameter stability and capacitance stability even when used for rapid molding of electric wire coating. The pellets contain a fluororesin. Each of the pellets, placed on a horizontal surface, has a substantially circular outline or a substantially elliptic outline and has a major axis D1 of 3.1 mm or shorter and a minor axis D2 of 3.1 mm or shorter when observed in the direction normal to the horizontal surface. Each pellet satisfies the following formula (1): (D1+D2)/2L=1.8 to 2.6, wherein D1 represents the major axis, D2 represents the minor axis, and L represents the height from the horizontal surface to the highest point of the pellet.Type: ApplicationFiled: January 17, 2017Publication date: August 20, 2020Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Shingo SAKAKIBARA, Jihong LIU, Yoshiyuki TAKASE, Ryouichi FUKAGAWA, Yosuke SHOJIMA, Yukari KARASAWA, Takeshi SHIMONO
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Patent number: 10557006Abstract: A composition which can provide foamed moldings and foamed electric wires having a small average cell size and a high foam content and causing fewer sparks. The composition includes a fluororesin (A) and a compound (B) which is a sulfonic acid or a salt thereof. The sulfonic acid is represented by the following formula (1): F(CF2)nSO3H (1) wherein n is 4 or 5, or the following formula (2): F(CF2)nCH2CH2SO3H (2) wherein n is 4 or 5. Also disclosed is a foamed molding formed from the composition and a method for producing a foamed molding.Type: GrantFiled: January 15, 2014Date of Patent: February 11, 2020Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Tadaharu Isaka, Kenji Ishii, Takeshi Shimono
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Publication number: 20190218320Abstract: The invention provides a process for producing a modified molded article capable of providing a diaphragm that is less likely to generate particles. The process for producing a modified molded article includes: molding modified polytetrafluoroethylene containing a tetrafluoroethylene unit and a modifying monomer unit based on a modifying monomer copolymerizable with tetrafluoroethylene to provide a molded article; and irradiating the molded article with not lower than 30 kGy but lower than 70 kGy of radiation at 270° C. to 310° C. to provide a modified molded article.Type: ApplicationFiled: August 1, 2017Publication date: July 18, 2019Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Hitoshi IMAMURA, Tatsuya FUNAOKA, Takeshi SHIMONO
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Publication number: 20190202151Abstract: The invention provides a molded article containing a specific fluororesin and having excellent hydrophilicity. The molded article containing the fluororesin has a melt flow rate of 1.00 g/10 min or lower and a water contact angle of 90° or smaller. The fluororesin contains at least one copolymer selected from the group consisting of a copolymer containing a tetrafluoroethylene unit and a perfluoro(alkylvinylether) unit and a copolymer containing a tetrafluoroethylene unit and a hexafluoropropylene unit.Type: ApplicationFiled: August 10, 2017Publication date: July 4, 2019Applicant: Daikin Industries, Ltd.Inventors: Hitoshi IMAMURA, Tatsuya FUNAOKA, Takeshi SHIMONO
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Publication number: 20190177453Abstract: Provided is a tetrafluoroethylene/hexafluoropropylene copolymer which is less likely to form a lump, or is less likely to form a large lump even if a lump is formed, during the formation of an electric wire. The tetrafluoroethylene/hexafluoropropylene copolymer has a melt flow rate measured at 372° C. of 35.0 to 45.0 g/10 minutes and a swell of ?8.0% to 5.0%, the sum of the numbers of —CF2H groups and unstable end groups being 120 or less per 1×106 carbon atoms.Type: ApplicationFiled: February 12, 2019Publication date: June 13, 2019Applicants: Daikin Industries, Ltd., Daikin America, Inc.Inventors: Tadaharu Isaka, Ryouichi Fukagawa, Takeshi Shimono, Keizou Shiotsuki
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Patent number: 10304585Abstract: The present invention aims to provide a composition which can provide molded foams and foamed electric wires having a small average cell size and a high expansion ratio. The composition of the present invention includes a fluororesin; and boron nitride having an average particle size of 10.5 ?m or greater, or boron nitride having a particle size distribution represented by (D84?D16)/D50 of 1.2 or lower.Type: GrantFiled: January 15, 2014Date of Patent: May 28, 2019Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Tadaharu Isaka, Kenji Ishii, Takeshi Shimono
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Patent number: 9994649Abstract: A method for recovering a hydrofluorocarbon, including: producing a wet fluoropolymer by suspension polymerization, solution polymerization, or bulk polymerization in the presence of a hydrofluorocarbon; vaporizing and discharging vaporizable substances including the hydrofluorocarbon by heating the wet fluoropolymer in a container; and transferring the discharged vaporizable substances to a cooling means to cool the substances.Type: GrantFiled: June 2, 2015Date of Patent: June 12, 2018Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Yumi Zenke, Tadaharu Isaka, Ryouichi Fukagawa, Takeshi Shimono
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Patent number: 9834631Abstract: The present invention aims to provide a method of producing a fluoropolymer, especially a fluoropolymer essentially including a tetrafluoroethylene or chlorotrifluoroethylene unit, at a higher polymerization rate with improved efficiency, the method being capable of improving the moldability in extrusion molding and suppressing discoloration. The method of producing a fluoropolymer of the present invention includes producing a fluoropolymer by polymerizing tetrafluoroethylene or chlorotrifluoroethylene in the presence of a peroxydicarbonate. The peroxydicarbonate is represented by the formula: R—O—C(?O)—O—O—C(?O)—O—R wherein R's may be the same as or different from each other and individually represent a C4 alkyl group or alkoxy alkyl group.Type: GrantFiled: April 30, 2014Date of Patent: December 5, 2017Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Takashi Sekiguchi, Manabu Fujisawa, Ryouichi Fukagawa, Takeshi Shimono
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Patent number: 9822225Abstract: The present invention aims to provide an ETFE film having excellent transparency and heat resistance and cost efficiency. The present invention relates to a film including a copolymer containing an ethylene unit, a tetrafluoroethylene unit, and a (fluoroalkyl)ethylene unit represented by Formula (1): CH2?CX—Rf??(1) wherein X represents H or F, and Rf represents a fluoroalkyl group having 2 or more carbon atoms, the copolymer containing the (fluoroalkyl)ethylene unit in an amount of 0.8 to 2.5 mol % relative to the amount of all the monomer units and containing the ethylene unit and the tetrafluoroethylene unit at a molar ratio of 30.0/70.0 to 50.0/50.0, the film having a crystallinity of 68% or less, the crystallinity being calculated on the basis of a diffraction intensity curve of the film resulting from X-ray diffraction measurement.Type: GrantFiled: December 18, 2013Date of Patent: November 21, 2017Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Yasuko Kouketsu, Ryouichi Fukagawa, Tatsuya Higuchi, Takeshi Shimono, Takashi Sekiguchi
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Patent number: 9725582Abstract: The present invention aims to provide a fluororesin composition for a molded product that is excellent in tensile strength and flex resistance. The present invention relates to a fluororesin composition that contains a fluororesin and a fluorinated nanodiamond. The amount of the fluorinated nanodiamond is 0.001 to 5% by mass based on the fluororesin.Type: GrantFiled: August 9, 2013Date of Patent: August 8, 2017Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Toshiyuki Fukushima, Takeshi Shimono, Tomohiro Isogai, Takahisa Aoyama, Fumihiko Yamaguchi, Tetsuo Shimizu
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Publication number: 20170137543Abstract: A method for recovering a hydrofluorocarbon, including: producing a wet fluoropolymer by suspension polymerization, solution polymerization, or bulk polymerization in the presence of a hydrofluorocarbon; vaporizing and discharging vaporizable substances including the hydrofluorocarbon by heating the wet fluoropolymer in a container; and transferring the discharged vaporizable substances to a cooling means to cool the substances.Type: ApplicationFiled: June 2, 2015Publication date: May 18, 2017Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Yumi ZENKE, Tadaharu ISAKA, Ryouichi FUKAGAWA, Takeshi SHIMONO
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Publication number: 20170008986Abstract: Provided is a tetrafluoroethylene/hexafluoropropylene copolymer which is less likely to form a lump, or is less likely to form a large lump even if a lump is formed, during the formation of an electric wire. The tetrafluoroethylene/hexafluoropropylene copolymer has a melt flow rate measured at 372° C. of 35.0 to 45.0 g/10 minutes and a swell of ?8.0% to 5.0%, the sum of the numbers of —CF2H groups and unstable end groups being 120 or less per 1×106 carbon atoms.Type: ApplicationFiled: January 30, 2015Publication date: January 12, 2017Applicants: DAIKIN INDUSTRIES, LTD., DAIKIN AMERICA, INC.Inventors: Tadaharu ISAKA, Ryouichi FUKAGAWA, Takeshi SHIMONO, Keizou SHIOTSUKI
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Patent number: 9475744Abstract: An object of the present invention is to provide a method for recovering a fluorine-containing ether capable of recovering a fluorine-containing ether used for producing a fluoropolymer, in higher recovery yield and in a shorter time. The present invention relates to a method for recovering a fluorine-containing ether, including the steps of: producing a wet fluoropolymer by suspension polymerization, solution polymerization, or bulk polymerization in the presence of at least a specific fluorine-containing ether; vaporizing and discharging vaporizable substances including the fluorine-containing ether by heating the wet fluoropolymer in a container; and transferring the vaporizable substances in the vaporized state to a cooling means to cool the vaporizable substances.Type: GrantFiled: January 20, 2014Date of Patent: October 25, 2016Assignee: DAIKAN INDUSTRIES, LTD.Inventors: Yumi Zenke, Tadaharu Isaka, Ryouichi Fukagawa, Takeshi Shimono
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Publication number: 20160108159Abstract: The present invention aims to provide a method of producing a fluoropolymer, especially a fluoropolymer essentially including a tetrafluoroethylene or chlorotrifluoroethylene unit, at a higher polymerization rate with improved efficiency, the method being capable of improving the moldability in extrusion molding and suppressing discoloration. The method of producing a fluoropolymer of the present invention includes producing a fluoropolymer by polymerizing tetrafluoroethylene or chlorotrifluoroethylene in the presence of a peroxydicarbonate. The peroxydicarbonate is represented by the formula: R—O—C(?O)—O—O—C(?O)—O—R wherein R's may be the same as or different from each other and individually represent a C4 alkyl group or alkoxy alkyl group.Type: ApplicationFiled: April 30, 2014Publication date: April 21, 2016Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Takashi SEKIGUCHI, Manabu FUJISAWA, Ryouichi FUKAGAWA, Takeshi SHIMONO
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Patent number: 9266986Abstract: The present invention provides a chlorotrifluoroethylene copolymer endowed with stress cracking resistance, chemical resistance and thermal stability. The present invention is a chlorotrifluoroethylene copolymer constituted of chlorotrifluoroethylene unit, tetrafluoroethylene unit and a monomer [A] unit derived from a monomer [A] copolymerizable with chlorotrifluoroethylene and tetrafluoroethylene, wherein the sum of chlorotrifluoroethylene unit and the tetrafluoroethylene unit amounts to 90 to 99.9 mole percent and the monomer [A] unit amounts to 0.1 to 10 mole percent.Type: GrantFiled: April 13, 2005Date of Patent: February 23, 2016Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Takeshi Shimono, Takahisa Aoyama, Hiroshi Torimae, Takahiro Kitahara
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Publication number: 20160005506Abstract: The present invention aims to provide a composition which can provide molded foams and foamed electric wires having a small average cell size and a high expansion ratio. The composition of the present invention includes a fluororesin; and boron nitride having an average particle size of 10.5 ?m or greater, or boron nitride having a particle size distribution represented by (D84?D16)/D50 of 1.2 or lower.Type: ApplicationFiled: January 15, 2014Publication date: January 7, 2016Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Tadaharu ISAKA, Kenji ISHII, Takeshi SHIMONO