Patents by Inventor Takaya KOHORI
Takaya KOHORI 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: 11600405Abstract: An electronic wire and a cable which are excellent in bending resistance even when a diameter is small. The electronic wire has a conductor and a resin insulating layer coated on the conductor. The conductor is a double twisted wire in which twisted wires formed by twisting a plurality of wires are twisted, a diameter of the wire is 0.05 mm or more and 0.2 mm or less, a cross-sectional area of the conductor is 1.0 mm2 or more and 3.0 mm2 or less, a breaking elongation of the conductor is 10% or more and 17% or less, a tensile strength of the conductor is 200 MPa or more and 400 MPa or less, and the insulating layer is disposed to be in close contact with the conductor and has a solid structure.Type: GrantFiled: December 18, 2020Date of Patent: March 7, 2023Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Takaya Kohori, Hiroyuki Okawa
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Patent number: 11600403Abstract: The cable according to one embodiment of the invention comprises: one or a plurality of core members, each having a conductor and an insulation cover material covering the conductor; and a sheath layer covering the one or the plurality of core members. The sheath layer comprises an inner sheath layer, and an outer sheath layer covering the inner sheath layer. The inner sheath layer comprises a crosslinked very low density polyethylene. The main component of the outer sheath layer is polyurethane. Relative to 100 parts by mass of resin component in the inner sheath layer, the very low density polyethylene content is between 20 parts by mass and 100 parts by mass inclusive. The elastic modulus of the inner sheath layer at 25° C. is between 5 MPa and 30 MPa inclusive.Type: GrantFiled: August 6, 2018Date of Patent: March 7, 2023Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Yutaka Matsumura, Shigeyuki Tanaka, Taro Fujita, Takaya Kohori, Masayuki Ishikawa
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Patent number: 11515063Abstract: A composite cable that enables to easily restrain falling-off of separator dust at the time of peeling off a sheath, in comparison with composite cables in the conventional art. The composite cable includes a plurality of wires, a separator that covers the outer circumference of the plurality of wires all together, a sheath that covers the outer circumference of the separator, and an inclusion that is interposed between the separator and the sheath. The separator has a base layer composed of a polymer and an adhesive layer formed on the surface of the base layer on the inclusion side. In the composite cable, the adhesive layer is adhered to the inclusion.Type: GrantFiled: September 24, 2021Date of Patent: November 29, 2022Assignees: SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Kenta Kobayashi, Akira Kitabata, Takaya Kohori, Masayuki Ishikawa
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Patent number: 11456090Abstract: Provided is an insulated electrical cable including: a core wire made up of at least one insulated wire including a conductor and an insulating layer covering the conductor; an inner sheath layer covering the core wire; and an outer sheath layer covering the inner sheath layer. The inner sheath layer has an elastic modulus A at ?30° C. in a range from 10 MPa to 1000 MPa.Type: GrantFiled: July 19, 2019Date of Patent: September 27, 2022Assignee: Sumitomo Electric Industries, Ltd.Inventors: Yutaka Matsumura, Shigeyuki Tanaka, Taro Fujita, Takaya Kohori, Masayuki Ishikawa
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Patent number: 11410789Abstract: A core wire for multi-core cables includes a conductor obtained by twisting a plurality of elemental wires, and an insulating layer coated on an outer peripheral surface of the conductor. The insulating layer contains polyethylene-based resin as a main component, and the product of a linear expansion coefficient C1 of the insulating layer in the range of 25° C. to ?35° C. and an elastic modulus E1 at ?35° C., namely (C1×E1), is 0.01 MPaK?1 or more and 0.90 MPaK?1 or less. The melting point of the polyethylene-based resin is 80° C. or higher and 130° C. or lower.Type: GrantFiled: July 15, 2021Date of Patent: August 9, 2022Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Yutaka Matsumura, Shigeyuki Tanaka, Taro Fujita, Takaya Kohori, Masayuki Ishikawa
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Publication number: 20220238253Abstract: A core electric wire for a multicore cable that includes a conductor composed of a plurality of elemental wires twisted together and an insulating layer coating a circumference of the conductor, the insulating layer including a first component and a second component, the first component being high density polyethylene, the second component being at least one selected from the group consisting of a copolymer of ethylene and an ?-olefin having a carbonyl group, and very-low density polyethylene, the first component having a content ratio of 10% by mass or more and 60% by mass or less to a total content of the polyethylene-based resin, the second component having a content ratio of 20% by mass or more and 80% by mass or less to the total content of the polyethylene-based resin.Type: ApplicationFiled: June 1, 2020Publication date: July 28, 2022Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Yutaka MATSUMURA, Shigeyuki TANAKA, Taro FUJITA, Takaya KOHORI, Takumi OOSHIMA, Jo YAGISAWA
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Publication number: 20220181045Abstract: An insulated electric cable including: two first core wires, each of the two first core wires including: a first conductor; and a first insulating layer covering the first conductor; and two second core wires, each of the two second core wires including: a second conductor having a cross-sectional area smaller than that of the first conductor; and a second insulating layer covering the second conductor; wherein the two second core wires are mutually stranded to form a subunit, and wherein one of the two first core wires, another of the two first core wires, and the subunit are mutually stranded and are in contact with each other to form a core member.Type: ApplicationFiled: February 28, 2022Publication date: June 9, 2022Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Satoshi HASHIMOTO, Yuji OCHI, Masayuki ISHIKAWA, Takami SAGISAKA, Takaya KOHORI
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Patent number: 11338746Abstract: An automobile architecture includes a composite cable, a main electronic control unit, a subsidiary electronic control unit, a motor sensor, and a wheel velocity sensor. In the architecture, the composite cable connects the main electronic control unit and the subsidiary electronic control unit, and the motor sensor and the wheel velocity sensor are connected to the subsidiary electronic control unit.Type: GrantFiled: April 16, 2019Date of Patent: May 24, 2022Assignees: SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kenta Kobayashi, Akira Kitabata, Takaya Kohori, Masayuki Ishikawa, Taiko Sato, Hiroyuki Ishikawa
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Patent number: 11295875Abstract: An insulated electric cable including: two first core wires, each of the two first core wires including: a first conductor; and a first insulating layer covering the first conductor; and two second core wires, each of the two second core wires including: a second conductor having a cross-sectional area smaller than that of the first conductor; and a second insulating layer covering the second conductor; wherein the two second core wires are mutually stranded to form a subunit, and wherein one of the two first core wires, another of the two first core wires, and the subunit are mutually stranded and are in contact with each other to form a core member.Type: GrantFiled: November 16, 2020Date of Patent: April 5, 2022Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Satoshi Hashimoto, Yuji Ochi, Masayuki Ishikawa, Takami Sagisaka, Takaya Kohori
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Publication number: 20220013254Abstract: A composite cable that enables to easily restrain falling-off of separator dust at the time of peeling off a sheath, in comparison with composite cables in the conventional art. The composite cable includes a plurality of wires, a separator that covers the outer circumference of the plurality of wires all together, a sheath that covers the outer circumference of the separator, and an inclusion that is interposed between the separator and the sheath. The separator has a base layer composed of a polymer and an adhesive layer formed on the surface of the base layer on the inclusion side. In the composite cable, the adhesive layer is adhered to the inclusion.Type: ApplicationFiled: September 24, 2021Publication date: January 13, 2022Applicants: SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Kenta KOBAYASHI, Akira KITABATA, Takaya KOHORI, Masayuki ISHIKAWA
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Publication number: 20210343447Abstract: A core wire for multi-core cables includes a conductor obtained by twisting a plurality of elemental wires, and an insulating layer coated on an outer peripheral surface of the conductor. The insulating layer contains polyethylene-based resin as a main component, and the product of a linear expansion coefficient C1 of the insulating layer in the range of 25° C. to ?35° C. and an elastic modulus E1 at ?35° C., namely (C1×E1), is 0.01 MPaK?1 or more and 0.90 MPaK?1 or less. The melting point of the polyethylene-based resin is 80° C. or higher and 130° C. or lower.Type: ApplicationFiled: July 15, 2021Publication date: November 4, 2021Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Yutaka MATSUMURA, Shigeyuki TANAKA, Taro FUJITA, Takaya KOHORI, Masayuki ISHIKAWA
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Patent number: 11152136Abstract: A composite cable which makes it possible to improve disconnection resistance of a signal line. The composite cable includes a signal line part, a pair of power supply lines, and a sheath. The signal line part is composed of a first signal line and a second signal line twisted together. Each of the first signal line and the second signal line is composed of a pair of wires twisted together. The sheath covers an outer circumference of a wire bundle composed of the signal line part and a pair of power supply lines, the signal line part and the pair of power supply lines being twisted together. The signal line part is covered with a shield conductor formed of a conductive element wire spirally wound around the outer circumference of the signal line part.Type: GrantFiled: March 22, 2019Date of Patent: October 19, 2021Assignees: SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Kenta Kobayashi, Akira Kitabata, Takaya Kohori, Masayuki Ishikawa
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Publication number: 20210319929Abstract: Provided is an insulated electrical cable including: a core wire made up of at least one insulated wire including a conductor and an insulating layer covering the conductor; an inner sheath layer covering the core wire; and an outer sheath layer covering the inner sheath layer. The inner sheath layer has an elastic modulus A at ?30° C. in a range from 10 MPa to 1000 MPa.Type: ApplicationFiled: July 19, 2019Publication date: October 14, 2021Applicant: Sumitomo Electric Industries, Ltd.Inventors: Yutaka MATSUMURA, Shigeyuki TANAKA, Taro FUJITA, Takaya KOHORI, Masayuki ISHIKAWA
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Publication number: 20210304918Abstract: Provided is an insulted electrical cable including a core wire and a coating layer covering the core wire. The core wire is made up of at least one insulated wire including a conductor and an insulating layer covering the conductor. A coating member is disposed between the core wire and the coating layer to cover the core wire. A coefficient of kinetic friction between the coating member and the insulating layer at ?30° C. is less than or equal to 0.20.Type: ApplicationFiled: July 19, 2019Publication date: September 30, 2021Applicant: Sumitomo Electric Industries, Ltd.Inventors: Yutaka MATSUMURA, Shigeyuki TANAKA, Taro FUJITA, Takaya KOHORI, Masayuki ISHIKAWA
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Patent number: 11133121Abstract: A composite cable that enables to easily restrain falling-off of separator dust at the time of peeling off a sheath, in comparison with composite cables in the conventional art. The composite cable includes a plurality of wires, a separator that covers the outer circumference of the plurality of wires all together, a sheath that covers the outer circumference of the separator, and an inclusion that is interposed between the separator and the sheath. The separator has a base layer composed of a polymer and an adhesive layer formed on the surface of the base layer on the inclusion side. In the composite cable, the adhesive layer is adhered to the inclusion.Type: GrantFiled: February 7, 2018Date of Patent: September 28, 2021Assignees: SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Kenta Kobayashi, Akira Kitabata, Takaya Kohori, Masayuki Ishikawa
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Patent number: 11114215Abstract: An object of the present disclosure is to provide a core electric wire for a multi-core cable that is superior in flex resistance at low temperature, and a multi-core cable employing the same. A core electric wire for a multi-core cable according to an aspect of the present disclosure comprises a conductor obtained by twisting element wires, and an insulating layer covering the conductor, wherein a linear expansion coefficient C of the insulating layer at from 25° C. to ?35° C. is no less than 1×10?5 K?1 and no greater than 2.5×10?4 K?1.Type: GrantFiled: January 29, 2019Date of Patent: September 7, 2021Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Shigeyuki Tanaka, Shinya Nishikawa, Hiroyuki Okawa, Takaya Kohori, Yuhei Mayama, Takayuki Hirai
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Patent number: 11107603Abstract: A multi-core flat cable for a vehicle includes a sheath covering two power wires and at least two signal wires. A pair of the signal wires is twisted and is configured as one twisted pair of signal wires. On a section perpendicular to a longitudinal direction, a ratio (long-axis dimension/short-axis dimension) of a long-axis dimension to a short-axis dimension is equal to or greater than 1.8.Type: GrantFiled: June 2, 2017Date of Patent: August 31, 2021Assignee: Sumitomo Electric Industries, LTD.Inventors: Takaya Kohori, Hiroyuki Okawa
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Patent number: 11101054Abstract: A core wire for multi-core cables includes a conductor obtained by twisting a plurality of elemental wires, and an insulating layer coated on an outer peripheral surface of the conductor. The insulating layer contains polyethylene-based resin as a main component, and the product of a linear expansion coefficient C1 of the insulating layer in the range of 25° C. to ?35° C. and an elastic modulus E1 at ?35° C., namely (C1×E1) is 0.01 MPaK?1 or more and 0.90 MPaK?1 or less. The melting point of the polyethylene-based resin is 80° C. or higher and 130° C. or lower.Type: GrantFiled: October 5, 2018Date of Patent: August 24, 2021Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Yutaka Matsumura, Shigeyuki Tanaka, Taro Fujita, Takaya Kohori, Masayuki Ishikawa
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Publication number: 20210134485Abstract: A composite cable that enables to easily restrain falling-off of separator dust at the time of peeling off a sheath, in comparison with composite cables in the conventional art. The composite cable includes a plurality of wires, a separator that covers the outer circumference of the plurality of wires all together, a sheath that covers the outer circumference of the separator, and an inclusion that is interposed between the separator and the sheath. The separator has a base layer composed of a polymer and an adhesive layer formed on the surface of the base layer on the inclusion side. In the composite cable, the adhesive layer is adhered to the inclusion.Type: ApplicationFiled: February 7, 2018Publication date: May 6, 2021Applicants: SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Kenta KOBAYASHI, Akira KITABATA, Takaya KOHORI, Masayuki ISHIKAWA
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Patent number: 10991484Abstract: A multi-conductor cable for a vehicle includes core wires respectively having a conductor formed by a plurality of twisted wires, and an insulating layer covering an outer periphery of the conductor, and a sheath layer disposed around the core wires. A marking portion is partially formed on an outer peripheral surface of the sheath layer, and a ratio of an arithmetic average roughness Ra2 of a peripheral region adjacent to the marking portion, with respect to an arithmetic average roughness Ra1 of the marking portion, at the outer peripheral surface, is 0.10 or greater and 0.90 or less.Type: GrantFiled: December 19, 2019Date of Patent: April 27, 2021Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Shigeyuki Tanaka, Yutaka Matsumura, Taro Fujita, Takaya Kohori