Patents by Inventor Taketo Kumada
Taketo Kumada 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: 20240282476Abstract: A communication cable includes an insulation electric wire including a conductor having tensile strength of 400 MPa or more and a cross-sectional area of 0.22 mm2 or less and a covering layer covering the conductor and being formed of an insulating material, and a sheath covering an outer periphery of the insulation electric wire and being formed of a resin composition containing crystalline polyolefin. A tensile elastic modulus of the sheath is 500 MPa or less, and a mass increase rate of the sheath is less than 50 mass % in a plasticizer migration test involving exposure in an atmosphere at 105° C. for 3,000 hours. Characteristic impedance of the communication cable is 100±10?.Type: ApplicationFiled: January 16, 2024Publication date: August 22, 2024Applicant: Yazaki CorporationInventor: Taketo KUMADA
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Publication number: 20230411043Abstract: There are provided a duplex twisted shielded cable and wire harness, the duplex twisted shielded cable including; two insulated wires that are twisted together, each having a conductor and an insulator covering the conductor; a metal foil shield provided around the two insulated wires; a metal braid provided on an outer periphery of the metal foil shield; and a sheath provided on an outer periphery of the metal braid. The metal foil shield includes a PET film layer and a metal layer. The PET film layer has a thickness of 20 ?m or less, an ellipticity of the PET film layer is set to 0.75 or more and 0.90 or less, and the metal foil shield is longitudinally attached to the two insulated wires.Type: ApplicationFiled: May 15, 2023Publication date: December 21, 2023Inventors: Taketo Kumada, Toshiharu Shimizu
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Patent number: 10529464Abstract: A shield sleeve for shielding an electric wire includes a tensile strength fiber that has an approximately circular section and on which a metal-plating layer is formed. A plurality of the tensile strength fibers is braided to form a tubular shape. Braid density of the braided tensile strength fibers is 85% or more and 98% or less and resistance between the braided tensile strength fibers is 0.096 ?/m or less.Type: GrantFiled: January 10, 2018Date of Patent: January 7, 2020Assignee: YAZAKI CORPORATIONInventors: Taketo Kumada, Hiroki Kondo
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Patent number: 10510469Abstract: A coaxial cable has an inner conductor, an insulator provided on an outer circumference of the inner conductor, a film provided on an outer circumference of the insulator, an outer conductor provided on an outer circumference of the film, and a sheath provided on an outer circumference of the outer conductor. At least a part of the film is colored in a different color from both colors of the insulator and the outer conductor.Type: GrantFiled: October 13, 2015Date of Patent: December 17, 2019Assignee: YAZAKI CORPORATIONInventor: Taketo Kumada
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Publication number: 20190096547Abstract: A differential transmission cable and a wire harness is provided. The differential transmission cable 1 includes two electric wires, a non-conductive film that is wound around the two electric wires, and a sheath that is brought into contact with the periphery of the film in a filled state. The film has an adhesive layer in one surface of the film. The film is wound around the two electric wires such that the adhesive layer is arranged outside. In addition, the film is laterally wound around the two electric wires.Type: ApplicationFiled: August 21, 2018Publication date: March 28, 2019Applicant: Yazaki CorporationInventor: Taketo KUMADA
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Publication number: 20190096546Abstract: A 2-core shielded cable and a wire harness is provided. The 2-core shielded cable is equipped with two insulated electric wires, a metal film which is provided along a length of the electric wire so as to cover the two electric wires, and a sheath which is formed around the metal film in a filled state. The metal film has a film and a metal layer. The thickness of the film is larger than or equal to 20 ?m.Type: ApplicationFiled: August 17, 2018Publication date: March 28, 2019Applicant: Yazaki CorporationInventor: Taketo KUMADA
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Patent number: 10068686Abstract: A coaxial cable includes an internal conductor, an insulator that is provided at an outer circumference of the internal conductor, a film that is provided at an outer circumference of the insulator, an external conductor that is provided at an outer circumference of the film, a sheath that is provided at an outer circumference of the external conductor, and an adhesive layer that is provided between the insulator and the film and that bonds the insulator and the film with each other.Type: GrantFiled: June 5, 2015Date of Patent: September 4, 2018Assignee: Yazaki CorporationInventor: Taketo Kumada
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Publication number: 20180158568Abstract: A shield sleeve for shielding an electric wire includes a tensile strength fiber that has an approximately circular section and on which a metal-plating layer is formed. A plurality of the tensile strength fibers is braided to form a tubular shape. Braid density of the braided tensile strength fibers is 85% or more and 98% or less and resistance between the braided tensile strength fibers is 0.096 ?/m or less.Type: ApplicationFiled: January 10, 2018Publication date: June 7, 2018Applicant: Yazaki CorporationInventors: Taketo KUMADA, Hiroki KONDO
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Patent number: 9911522Abstract: A wiring harness includes an electric wire having a conductor part and an insulator, the insulator covering an outer periphery of the conductor part and containing a plasticizer, and a coaxial wire having an internal conductor, an internal insulator, an external conductor, and a sheath, the internal insulator provided on an outer periphery of the internal conductor, the external conductor provided on an outer periphery of the internal insulator, and the sheath covering an outer periphery of the external conductor. The coaxial wire is arranged adjacent to the electric wire. The coaxial wire comprises a film layer which is provided between the internal insulator and the external conductor and which prevents transfer of the plasticizer. A contact force between the internal insulator and the film layer is 1N or more.Type: GrantFiled: March 6, 2017Date of Patent: March 6, 2018Assignee: YAZAKI CORPORATIONInventors: Shuichi Inoue, Taketo Kumada
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Publication number: 20170178768Abstract: A wiring harness includes an electric wire having a conductor part and an insulator, the insulator covering an outer periphery of the conductor part and containing a plasticizer, and a coaxial wire having an internal conductor, an internal insulator, an external conductor, and a sheath, the internal insulator provided on an outer periphery of the internal conductor, the external conductor provided on an outer periphery of the internal insulator, and the sheath covering an outer periphery of the external conductor. The coaxial wire is arranged adjacent to the electric wire. The coaxial wire comprises a film layer which is provided between the internal insulator and the external conductor and which prevents transfer of the plasticizer. A contact force between the internal insulator and the film layer is 1N or more.Type: ApplicationFiled: March 6, 2017Publication date: June 22, 2017Applicant: Yazaki CorporationInventors: Shuichi INOUE, Taketo KUMADA
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Patent number: 9466406Abstract: A communication cable is provided which can suppress the shielding performance thereof. A communication cable 1 includes one or a plurality of conductors 10, an insulator 20 placed on the conductor 10 to cover it, a shielding layer 30 which is formed on an outer circumference of the insulator 20, an insulating sheath 40 which covers the shielding layer 30 and a biaxially oriented film layer 50 which is provided between the insulator 20 and the sheath 40 so as to cover the outer circumference of the insulator 20.Type: GrantFiled: April 4, 2012Date of Patent: October 11, 2016Assignee: YAZAKI CORPORATIONInventors: Toshiharu Shimizu, Taketo Kumada
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Publication number: 20160078981Abstract: A signal cable is provided with a pair of power supply wires and a pair of signal wires. Each of the pair of the power supply wires is provided with a conductor and an insulator with which the conductor of the power supply wire is coated. Each of the pair of the signal wires comprises a conductor and an insulator with which the conductor of the signal wire is coated. The pair of the power supply wires and the pair of the signal wires are respectively disposed diagonally. The power supply wires and the signal wires are collectively twisted together, and the conductors of the power supply wires and the conductors of the signal wires are respectively twisted together in a state that strains of the conductors of the power supply wires and the conductors of the signal wires are within a range of an elastic region.Type: ApplicationFiled: November 12, 2015Publication date: March 17, 2016Inventor: Taketo Kumada
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Publication number: 20160035461Abstract: A coaxial cable has an inner conductor, an insulator provided on an outer circumference of the inner conductor, a film provided on an outer circumference of the insulator, an outer conductor provided on an outer circumference of the film, and a sheath provided on an outer circumference of the outer conductor. At least a part of the film is colored in a different color from both colors of the insulator and the outer conductor.Type: ApplicationFiled: October 13, 2015Publication date: February 4, 2016Inventor: Taketo KUMADA
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Patent number: 9190191Abstract: An extra-flexible insulated electric wire includes a conductor portion and an insulating cover. The conductor portion includes an inner layer and an outermost layer. In the inner layer, conductive strands are collectively twisted. In the outermost layer, conductive strands are disposed along an outer circumference of the inner layer. The insulating cover covers the conductor portion.Type: GrantFiled: August 14, 2013Date of Patent: November 17, 2015Assignee: YAZAKI CORPORATIONInventor: Taketo Kumada
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Publication number: 20150294758Abstract: An insulated wire 1 includes a stranded conductor 11 composed of a plurality of metal conductor strands 11a twisted together, covered with an electrically insulative insulator 12, each metal conductor strand 11a being made of a copper alloy having a tensile strength of 500 MPa or higher and an elongation of 6% or greater, and having a strand diameter of 0.12 mm or smaller.Type: ApplicationFiled: June 26, 2015Publication date: October 15, 2015Applicant: Yazaki CorporationInventors: Taketo Kumada, Kazuhiro Ohgushi
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Publication number: 20150270032Abstract: A coaxial cable includes an internal conductor, an insulator that is provided at an outer circumference of the internal conductor, a film that is provided at an outer circumference of the insulator, an external conductor that is provided at an outer circumference of the film, a sheath that is provided at an outer circumference of the external conductor, and an adhesive layer that is provided between the insulator and the film and that bonds the insulator and the film with each other.Type: ApplicationFiled: June 5, 2015Publication date: September 24, 2015Applicant: YAZAKI CORPORATIONInventor: Taketo Kumada
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Publication number: 20150206625Abstract: A coaxial cable includes an inner conductor, an insulator formed on an outer peripheral side of the inner conductor, an outer conductor layer formed on an outer peripheral side of the insulator, and a sheath formed on an outer peripheral side of the outer conductor layer. The outer conductor layer has a first shield layer made of metal foil, an insulating layer formed on an outer peripheral side of the first shield layer, and a second shield layer made of metal foil formed on an outer peripheral side of the insulating layer. The first shield layer of the outer conductor layer is glued to the insulator.Type: ApplicationFiled: April 1, 2015Publication date: July 23, 2015Applicant: Yazaki CorporationInventor: Taketo Kumada
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Publication number: 20140027149Abstract: A communication cable is provided which can suppress the shielding performance thereof. A communication cable 1 includes one or a plurality of conductors 10, an insulator 20 placed on the conductor 10 to cover it, a shielding layer 30 which is formed on an outer circumference of the insulator 20, an insulating sheath 40 which covers the shielding layer 30 and a biaxially oriented film layer 50 which is provided between the insulator 20 and the sheath 40 so as to cover the outer circumference of the insulator 20.Type: ApplicationFiled: April 4, 2012Publication date: January 30, 2014Applicant: YAZAKI CORPORATIONInventors: Toshiharu Shimizu, Taketo Kumada
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Publication number: 20130333914Abstract: A shield sleeve for shielding an electric wire includes a tensile strength fiber that has an approximately circular section and on which a metal-plating layer is formed. A plurality of the tensile strength fibers is braided to form a tubular shape. Braid density of the braided tensile strength fibers is 85% or more and 98% or less and resistance between the braided tensile strength fibers is 0.096 ?/m or less.Type: ApplicationFiled: August 16, 2013Publication date: December 19, 2013Applicant: Yazaki CorporationInventors: Taketo KUMADA, Hiroki KONDO
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Publication number: 20130327557Abstract: An extra-flexible insulated electric wire includes a conductor portion and an insulating cover. The conductor portion includes an inner layer and an outermost layer. In the inner layer, conductive strands are collectively twisted. In the outermost layer, conductive strands are disposed along an outer circumference of the inner layer. The insulating cover covers the conductor portion.Type: ApplicationFiled: August 14, 2013Publication date: December 12, 2013Applicant: YAZAKI CORPORATIONInventor: Taketo Kumada