Patents by Inventor Shintaro Shimada
Shintaro Shimada 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: 11905649Abstract: A fiber cord for reinforcement has an adhesive treatment agent attached to a surface thereof and includes, in an inner layer part thereof, two kinds of compounds each having a molecular weight of less than 1,000. The main compound is an aromatic compound or contains an ?-dicarboxylic acid component, and the other compound is an aliphatic compound or an alicyclic compound. It is preferable that the adhesive treatment agent is a resorcin-formalin-latex-based adhesive, that the fiber cord includes a twisted synthetic fiber, that the aromatic compound is a heterocyclic compound, that the main compound is located only in the inner layer part of the fiber cord, that a compound having a hexamethylene diisocyanate trimer structure is present, and that no latex is present in the inner layer part of the fiber cord. This fiber cord is produced through a two-stage treatment with a pre-treatment liquid and adhesive treatment liquid.Type: GrantFiled: July 17, 2019Date of Patent: February 20, 2024Assignee: TEIJIN FRONTIER CO., LTD.Inventors: Shintaro Shimada, Shuhei Okamura
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Patent number: 11535979Abstract: Provided is a fiber material for cement reinforcement, configured such that a resin A containing an isocyanate compound as a constituent component is present inside a fiber bundled body, and a resin B containing an epoxy resin as a constituent component is present on a surface of the fiber bundled body. Further, it is preferable that the resin A contains a polyol or an epoxy compound as a constituent component in addition to the isocyanate compound, the resin B contains an acrylic-modified epoxy resin or a bisphenol-A epoxy resin as a main component, the fiber bundled body has a tensile strength of 7 cN/dtex or more, and the fiber bundled body includes 50 to 3,000 single fibers. The invention is also addressed to a concrete or mortar molded article using the above fiber material for reinforcement.Type: GrantFiled: September 17, 2020Date of Patent: December 27, 2022Assignee: TEIJIN LIMITEDInventors: Shuhei Okamura, Shintaro Shimada, Akira Teraoka, Takeya Dei
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Publication number: 20210002819Abstract: Provided is a fiber material for cement reinforcement, configured such that a resin A containing an isocyanate compound as a constituent component is present inside a fiber bundled body, and a resin B containing an epoxy resin as a constituent component is present on a surface of the fiber bundled body. Further, it is preferable that the resin A contains a polyol or an epoxy compound as a constituent component in addition to the isocyanate compound, the resin B contains an acrylic-modified epoxy resin or a bisphenol-A epoxy resin as a main component, the fiber bundled body has a tensile strength of 7 cN/dtex or more, and the fiber bundled body includes 50 to 3,000 single fibers. The invention is also addressed to a concrete or mortar molded article using the above fiber material for reinforcement.Type: ApplicationFiled: September 17, 2020Publication date: January 7, 2021Applicant: TEIJIN LIMITEDInventors: Shuhei OKAMURA, Shintaro Shimada, Akira Teraoka, Takeya Dei
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Publication number: 20190338460Abstract: A fiber cord for reinforcement has an adhesive treatment agent attached to a surface thereof and includes, in an inner layer part thereof, two kinds of compounds each having a molecular weight of less than 1,000. The main compound is an aromatic compound or contains an ?-dicarboxylic acid component, and the other compound is an aliphatic compound or an alicyclic compound. It is preferable that the adhesive treatment agent is a resorcin-formalin-latex-based adhesive, that the fiber cord includes a twisted synthetic fiber, that the aromatic compound is a heterocyclic compound, that the main compound is located only in the inner layer part of the fiber cord, that a compound having a hexamethylene diisocyanate trimer structure is present, and that no latex is present in the inner layer part of the fiber cord. This fiber cord is produced through a two-stage treatment with a pre-treatment liquid and adhesive treatment liquid.Type: ApplicationFiled: July 17, 2019Publication date: November 7, 2019Applicant: TEIJIN LIMITEDInventors: Shintaro Shimada, Shuhei Okamura
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Publication number: 20170342654Abstract: Provided is a fiber material for cement reinforcement, configured such that a resin A containing an isocyanate compound as a constituent component is present inside a fiber bundled body, and a resin B containing an epoxy resin as a constituent component is present on a surface of the fiber bundled body. Further, it is preferable that the resin A contains a polyol or an epoxy compound as a constituent component in addition to the isocyanate compound, the resin B contains an acrylic-modified epoxy resin or a bisphenol-A epoxy resin as a main component, the fiber bundled body has a tensile strength of 7 cN/dtex or more, and the fiber bundled body includes 50 to 3,000 single fibers. The invention is also addressed to a concrete or mortar molded article using the above fiber material for reinforcement.Type: ApplicationFiled: January 14, 2016Publication date: November 30, 2017Applicant: TEIJIN LIMITEDInventors: Shuhei OKAMURA, Shintaro SHIMADA, Akira TERAOKA, Takeya DEI
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Publication number: 20170016176Abstract: A fiber cord for reinforcement has an adhesive treatment agent attached to a surface thereof and includes, in an inner layer part thereof, two kinds of compounds each having a molecular weight of less than 1,000. The main compound is an aromatic compound or contains an ?-dicarboxylic acid component, and the other compound is an aliphatic compound or an alicyclic compound. It is preferable that the adhesive treatment agent is a resorcin-formalin- latex-based adhesive, that the fiber cord includes a twisted synthetic fiber, that the aromatic compound is a heterocyclic compound, that the main compound is located only in the inner layer part of the fiber cord, that a compound having a hexamethylene diisocyanate trimer structure is present, and that no latex is present in the inner layer part of the fiber cord. This fiber cord is produced through a two-stage treatment with a pre-treatment liquid and adhesive treatment liquid.Type: ApplicationFiled: December 18, 2013Publication date: January 19, 2017Applicant: TEIJIN LIMITEDInventors: Shintaro SHIMADA, Shuhei OKAMURA
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Patent number: 9463669Abstract: Provided is a tire whose durability is improved by using, as a reinforcing member, a polyester cord having an improved heat resistant adhesive property to rubber. Provided is a tire in which a rubber-cord complex composed of a polyester cord and a rubber is used as a reinforcing member. The polyester cord is formed by twisting polyester filaments, and then subjecting the twisted filaments to an adhesive agent treatment. The polyester filament is made of a polyester fiber which is composed of a polyester having ethylene terephthalate as a main repeating unit and having an intrinsic viscosity of 0.85 or higher, wherein the amount of terminal carboxy group in the fiber is 20 equivalent/ton or larger, the long period according to small-angle X-ray diffraction is 9 to 12 nm, and a surface treatment agent having an epoxy group is attached to the surface of the fiber.Type: GrantFiled: March 30, 2012Date of Patent: October 11, 2016Assignee: BRIDGESTONE CORPORATIONInventors: Hiroyuki Yokokura, Daisuke Ozaki, Shintaro Shimada, Fuyuki Terasaka
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Publication number: 20140020809Abstract: Provided is a tire whose durability is improved by using, as a reinforcing member, a polyester cord having an improved heat resistant adhesive property to rubber. Provided is a tire in which a rubber-cord complex composed of a polyester cord and a rubber is used as a reinforcing member. The polyester cord is formed by twisting polyester filaments, and then subjecting the twisted filaments to an adhesive agent treatment. The polyester filament is made of a polyester fiber which is composed of a polyester having ethylene terephthalate as a main repeating unit and having an intrinsic viscosity of 0.85 or higher, wherein the amount of terminal carboxy group in the fiber is 20 equivalent/ton or larger, the long period according to small-angle X-ray diffraction is 9 to 12 nm, and a surface treatment agent having an epoxy group is attached to the surface of the fiber.Type: ApplicationFiled: March 30, 2012Publication date: January 23, 2014Applicant: BRIDGESTONE CORPORATIONInventors: Hiroyuki Yokokura, Daisuke Ozaki, Shintaro Shimada, Fuyuki Terasaka
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Patent number: 8476372Abstract: There is provided a polyester fiber which has few defects such as voids due to catalyst particles, and low variation in physical properties and minimal fluff generation. The polyester fiber of the invention comprises laminar nanoparticles composed of a divalent metal and a phosphorus compound and having side lengths of 5-100 nm and an interlayer spacing of 1-5 nm. There are also provided a tire cord, tire, belt-reinforcing fiber material and belt, comprising the polyester fiber.Type: GrantFiled: January 12, 2010Date of Patent: July 2, 2013Assignee: Teijin Fibers LimitedInventors: Shintaro Shimada, Junichi Togasaki, Fuyuki Terasaka, Seiji Ito
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Patent number: 8163841Abstract: Polyethylene naphthalate fibers that are characterized in that the fibers have a crystal volume of from 550 to 1,200 nm3 obtained by wide angle X-ray diffraction of the fiber and a degree of crystallization of from 30 to 60%. It is preferred that the fibers have a maximum peak diffraction angle of wide angle X-ray diffraction of from 25.5 to 27.0° and a melting point of from 285 to 315° C. The production method thereof is characterized in that a particular phosphorus compound is added to the polymer in a molten state, the spinning draft ratio after discharging from the spinneret is from 100 to 5,000, and the molten polymer immediately after discharging from the spinneret is allowed to pass through a heat-retaining spinning chimney at a temperature within ±50° C. of a temperature of the molten polymer, and is drawn.Type: GrantFiled: March 4, 2009Date of Patent: April 24, 2012Assignee: Teijin Fibers LimitedInventors: Shintaro Shimada, Fuyuki Terasaka
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Patent number: 8158718Abstract: Polyethylene naphthalate fibers that are characterized in that the fibers have a crystal volume of from 100 to 200 nm3 obtained by wide angle X-ray diffraction of the fiber and a degree of crystallization of from 30 to 60%. It is preferred that the fibers have a maximum peak diffraction angle of wide angle X-ray diffraction of from 23.0 to 25.0°. The production method thereof is characterized in that a particular phosphorus compound is added to the polymer in a molten state, the spinning speed is from 4,000 to 8,000 m/min, and the molten polymer immediately after discharging from the spinneret is allowed to pass through a heated spinning chimney at a high temperature exceeding a temperature of the molten polymer by 50° C. or more, and is drawn.Type: GrantFiled: March 4, 2009Date of Patent: April 17, 2012Assignee: Teijin Fibers LimitedInventors: Shintaro Shimada, Fuyuki Terasaka
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Publication number: 20120002779Abstract: A state detection circuit comprises: a first counter circuit that counts a series of first command signals indicative of start of an operation control; a second counter circuit that counts a series of second command signals indicative of completion of the operation control; a count coincidence detection circuit that detects coincidence between a count in the first counter circuit and a count in the second counter circuit; and a state storing circuit that is set by the series of first command signals and reset when coincidence is detected by the count coincidence detection circuit. The first and second counter circuits each comprise a binary counter.Type: ApplicationFiled: July 29, 2010Publication date: January 5, 2012Applicant: ELPIDA MEMORY, INC.Inventors: Shintaro SHIMADA, Hiroyasu YOSHIDA
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Publication number: 20110017378Abstract: There is provided a polyester fiber which has few defects such as voids due to catalyst particles, and low variation in physical properties and minimal fluff generation. The polyester fiber of the invention comprises laminar nanoparticles composed of a divalent metal and a phosphorus compound and having side lengths of 5-100 nm and an interlayer spacing of 1-5 nm. There are also provided a tire cord, tire, belt-reinforcing fiber material and belt, comprising the polyester fiber.Type: ApplicationFiled: January 12, 2010Publication date: January 27, 2011Applicant: Teijin Fibers LimitedInventors: Shintaro Shimada, Junichi Togasaki, Fuyuki Terasaka, Seiji Ito
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Publication number: 20110015326Abstract: Polyethylene naphthalate fibers that are characterized in that the fibers have a crystal volume of from 100 to 200 nm3 obtained by wide angle X-ray diffraction of the fiber and a degree of crystallization of from 30 to 60%. It is preferred that the fibers have a maximum peak diffraction angle of wide angle X-ray diffraction of from 23.0 to 25.0°. The production method thereof is characterized in that a particular phosphorus compound is added to the polymer in a molten state, the spinning speed is from 4,000 to 8,000 m/min, and the molten polymer immediately after discharging from the spinneret is allowed to pass through a heated spinning chimney at a high temperature exceeding a temperature of the molten polymer by 50° C. or more, and is drawn.Type: ApplicationFiled: March 4, 2009Publication date: January 20, 2011Applicant: TEIJIN FIBERS LIMITEDInventors: Shintaro Shimada, Fuyuki Terasaka
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Patent number: 6610794Abstract: A resin composition comprising: a polyimide comprising a recurring unit represented by the following formula (1): wherein Ar0 is an aromatic hydrocarbon group having 6 to 15 carbon atoms, and R1 is at least one group selected from the group consisting of the divalent residual group obtained by removing two amino groups from an aliphatic diamine having 2 to 30 carbon atoms and the divalent residual group obtained by removing two amino groups from an alicyclic diamine having 4 to 30 carbon atoms, and a polyarylate or polyester carbonate. This resin composition has excellent heat resistance, dimensional stability and transparency. Particularly, the resin composition having excellent transparency is advantageously used as a molded product such as a flexible printed board.Type: GrantFiled: September 20, 2001Date of Patent: August 26, 2003Assignee: Teijin LimitedInventors: Tomonori Sakurai, Jiro Sadanobu, Takashi Ito, Naoya Saito, Shintaro Shimada