Patents by Inventor Shigeyuki Tanaka

Shigeyuki Tanaka 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).

  • Patent number: 12131840
    Abstract: An electrically insulated cable including: a core electric wire; and a covering layer covering the core electric wire; wherein: the core electric wire includes a plurality of insulated wires; the insulated wires each include a conductor and an insulating layer covering the conductor; and the covering layer contains a crosslinked polyethylene-based resin and a flame retardant in the front surface side thereof.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: October 29, 2024
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Shigeyuki Tanaka, Yutaka Matsumura, Taro Fujita, Takumi Ooshima, Jo Yagisawa
  • Publication number: 20240286394
    Abstract: Provided are a heat-sealable laminated film which has a high adhesion force at a laminated interface and a good bonded state when heat-sealed, and a roll thereof. A heat-sealable laminated film includes layer B, layer C, layer A, layer C, and layer B in this order. At least layer C, layer A, and layer C are laminated by co-extrusion. The layer A contains 100 to 70% by mass of a polymer A1 containing 90-100 mol % of a constitutional unit derived from 4-methyl-1-pentene with respect to all constitutional units. The layer B contains 100 to 70% by mass of a heat-sealable polyolefin B1. The layer C contains 50% by mass or more of a copolymer C1 containing 60-99 mol % of a constitutional unit derived from 4-methyl-1-pentene and 1-40 mol % of a constitutional unit derived from an ?-olefin having 2 or more and 20 or less carbon atoms other than 4-methyl-1-pentene.
    Type: Application
    Filed: June 2, 2022
    Publication date: August 29, 2024
    Applicant: TOYOBO CO., LTD.
    Inventors: Yoshitaka TANAKA, Shigeyuki WATANABE, Daiki FUNAOKA, Takafumi MASUDA
  • Patent number: 12073963
    Abstract: A core electric wire for a multicore cable. The core electric wire 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 includes 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 has a content ratio of 10% by mass or more and 60% by mass or less to a total content of the polyethylene-based resin, and the second component has 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: Grant
    Filed: June 1, 2020
    Date of Patent: August 27, 2024
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Yutaka Matsumura, Shigeyuki Tanaka, Taro Fujita, Takaya Kohori, Takumi Ooshima, Jo Yagisawa
  • Publication number: 20240282480
    Abstract: An electrically insulated cable comprising: a core electric wire; a tape member covering the core electric wire; and a covering layer covering the tape member, wherein: the core electric wire includes a plurality of insulated electric wires; the insulated electric wires each include a conductor and an insulating layer covering the conductor; the tape member is a film; and the tape member has a breaking elongation of 50% or less.
    Type: Application
    Filed: August 3, 2020
    Publication date: August 22, 2024
    Applicant: Sumitomo Electric Industries, Ltd.
    Inventors: Yutaka MATSUMURA, Shigeyuki TANAKA, Taro FUJITA, Takumi OOSHIMA, Jo YAGISAWA
  • Publication number: 20240239088
    Abstract: Provided are a heat-sealable laminated film which has a high adhesion force at a laminated interface and has a good bonded state when being heat-sealed, and a roll obtained by rolling the heat-sealable laminated film. A heat-sealable laminated film includes a layer B, a layer A, and a layer B laminated by co-extrusion in this order. The layer A contains 100 to 70% by mass of a polymer A1 containing 90 to 100 mol % of a constitutional unit derived from 4-methyl-1-pentene with respect to all constitutional units. The layer B contains 99 to 30% by mass of a heat-sealable polyolefin B1 and 1 to 70% by mass of a copolymer B2 containing 60 to 89 mol % of a constitutional unit derived from 4-methyl-1-pentene and 11 to 40 mol % of a constitutional unit derived from an ?-olefin having 2 or more and 20 or less carbon atoms other than 4-methyl-1-pentene.
    Type: Application
    Filed: June 2, 2022
    Publication date: July 18, 2024
    Applicant: TOYOBO CO., LTD.
    Inventors: Yoshitaka TANAKA, Shigeyuki WATANABE, Daiki FUNAOKA, Takafumi MASUDA
  • Publication number: 20240212878
    Abstract: A multicore cable according to an aspect of the present disclosure includes: a core wire made by stranding a pair of first core electric wires and a wire; and a sheath layer disposed around the core wire. The first core electric wires each include a conductor and an insulating layer covering an outer surface of the conductor. The ratio d2/d1 of an average outer diameter d2 of the wire to an average outer diameter d1 of each first core electric wire is more than 0.5 and less than 2.0.
    Type: Application
    Filed: March 8, 2022
    Publication date: June 27, 2024
    Applicant: Sumitomo Electric Industries, Ltd.
    Inventors: Shigeyuki TANAKA, Yutaka MATSUMURA, Yoshitaka OGASAWARA, Naoshi YOKOYAMA, Takumi OOSHIMA
  • Patent number: 11912850
    Abstract: A resin composition for an insulating layer includes: an olefinic resin as a main component; and a metal deactivator, wherein the olefinic resin consists of block polypropylene and polyethylene, and wherein a content of the polyethylene in the olefinic resin is greater than or equal to 1% by mass and less than or equal to 10% by mass.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: February 27, 2024
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Syota Machinaka, Taro Fujita, Shigeyuki Tanaka, Nayu Yanagawa, Yuji Ochi, Satoshi Okano, Yuto Kobayashi
  • Patent number: 11909233
    Abstract: A disconnection detection device includes CR filters, discharge circuits, and a detection unit. The CR filters are provided for respective battery cells of a battery pack in which the battery cells are connected in series. Each of the discharge circuits is connected between the battery cell and the CR filter and discharging the battery cell when cell voltages of the battery cells are made balanced. The detection unit successively discharges two of the battery cells connected in series, successively detects voltages of detection lines detecting contact voltages of the two battery cells after a predetermined time has passed from finish of discharge of each of the battery cells, and detects disconnection of each of the detection lines on the basis of a difference between the two detected voltages.
    Type: Grant
    Filed: November 6, 2019
    Date of Patent: February 20, 2024
    Assignee: DENSO TEN Limited
    Inventors: Shigeyuki Tanaka, Toyoshige Nakamura
  • Publication number: 20240002636
    Abstract: An insulated electric wire according to one aspect includes at least one linear conductor, and at least one insulating layer layered on the outer peripheral surface of the conductor, wherein the insulating layer contains an olefinic resin and an antioxidant, the content of the antioxidant is more than 1.0 part by mass and 5.0 parts by mass or less per 100 parts by mass of the olefinic resin, and the antioxidant comprises a phenolic antioxidant and a sulfur-based antioxidant except for a sulfur-containing phenolic antioxidant.
    Type: Application
    Filed: November 19, 2021
    Publication date: January 4, 2024
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Syota MACHINAKA, Shigeyuki TANAKA, Taro FUJITA, Satoshi OKANO, Yuji OCHI
  • Publication number: 20230290535
    Abstract: An insulated electric wire includes a conductor formed of a plurality of element wires twisted together, and an insulating layer covering an outer periphery of the conductor. The insulating layer is formed of a crosslinked product of a polymer composition. The polymer composition contains, as a main component, an ethylene-based copolymer, polyethylene, or a combination of an ethylene-based copolymer and polyethylene. The crosslinked product has a gel fraction of 60% or more, and the crosslinked product has a tensile elongation of 150% or more.
    Type: Application
    Filed: July 21, 2021
    Publication date: September 14, 2023
    Applicant: Sumitomo Electric Industries, Ltd.
    Inventors: Shigeyuki TANAKA, Taro FUJITA, Atsuko SHINOMIYA, Jo YAGISAWA
  • Patent number: 11600403
    Abstract: 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: Grant
    Filed: August 6, 2018
    Date of Patent: March 7, 2023
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Yutaka Matsumura, Shigeyuki Tanaka, Taro Fujita, Takaya Kohori, Masayuki Ishikawa
  • Publication number: 20230034227
    Abstract: An electrically insulated cable including: a core electric wire; and a covering layer covering the core electric wire; wherein: the core electric wire includes a plurality of insulated wires; the insulated wires each include a conductor and an insulating layer covering the conductor; and the covering layer contains a crosslinked polyethylene-based resin and a flame retardant in the front surface side thereof.
    Type: Application
    Filed: October 30, 2019
    Publication date: February 2, 2023
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Shigeyuki TANAKA, Yutaka MATSUMURA, Taro FUJITA, Takumi OOSHIMA, Jo YAGISAWA
  • Publication number: 20220406487
    Abstract: An electrically insulated cable comprising: a core electric wire; a tape member covering the core electric wire; and a covering layer covering the tape member; wherein: the core electric wire includes a plurality of insulated electric wires; the insulated electric wires each include a conductor and an insulating layer covering the conductor; and the tape member has a minimum value of transmittance of 70% or more with respect to light having a wavelength of no less than 400 nm and no more than 800 nm.
    Type: Application
    Filed: August 3, 2020
    Publication date: December 22, 2022
    Applicant: Sumitomo Electric Industries, Ltd.
    Inventors: Shigeyuki TANAKA, Yutaka MATSUMURA, Taro FUJITA, Takumi OOSHIMA, Jo YAGISAWA
  • Patent number: 11456090
    Abstract: 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: Grant
    Filed: July 19, 2019
    Date of Patent: September 27, 2022
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Yutaka Matsumura, Shigeyuki Tanaka, Taro Fujita, Takaya Kohori, Masayuki Ishikawa
  • Patent number: 11410789
    Abstract: 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: Grant
    Filed: July 15, 2021
    Date of Patent: August 9, 2022
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Yutaka Matsumura, Shigeyuki Tanaka, Taro Fujita, Takaya Kohori, Masayuki Ishikawa
  • Publication number: 20220238253
    Abstract: 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: Application
    Filed: June 1, 2020
    Publication date: July 28, 2022
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Yutaka MATSUMURA, Shigeyuki TANAKA, Taro FUJITA, Takaya KOHORI, Takumi OOSHIMA, Jo YAGISAWA
  • Patent number: 11283200
    Abstract: An electric wire with a terminal, includes an insulated wire which includes a core wire and an insulating layer covering the core wire, a seal member which is disposed in one end portion of the insulated wire and covers the insulating layer, a metal terminal which extends from the end portion of the insulated wire and is connected to the core wire and a waterproof resin portion which covers from a seal member covering part of the insulated wire to an electrical connection part of the metal terminal. The insulating layer contains an olefin resin. The waterproof resin portion contains a polyester, a polyamide, an ethylene-vinyl acetate copolymer, or a mixed resin thereof. The seal member includes an inner layer containing an ethylene resin and an outer layer laminated on the inner layer and containing a polyester, a polyamide, an ethylene-vinyl acetate copolymer, or a mixed resin thereof.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: March 22, 2022
    Assignees: Sumitomo Electric Industies, Ltd., AutoNetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd.
    Inventors: Shigeyuki Tanaka, Taro Fujita, Shinya Nishikawa, Kazuo Nakashima, Tetsuya Nakamura
  • Publication number: 20220037893
    Abstract: A disconnection detection device includes CR filters, discharge circuits, and a detection unit. The CR filters are provided for respective battery cells of a battery pack in which the battery cells are connected in series. Each of the discharge circuits is connected between the battery cell and the CR filter and discharging the battery cell when cell voltages of the battery cells are made balanced. The detection unit successively discharges two of the battery cells connected in series, successively detects voltages of detection lines detecting contact voltages of the two battery cells after a predetermined time has passed from finish of discharge of each of the battery cells, and detects disconnection of each of the detection lines on the basis of a difference between the two detected voltages.
    Type: Application
    Filed: November 6, 2019
    Publication date: February 3, 2022
    Applicant: DENSO TEN Limited
    Inventors: Shigeyuki TANAKA, Toyoshige NAKAMURA
  • Publication number: 20210376500
    Abstract: A terminal-attached electric wire includes: an insulated electric wire which includes a core wire and an insulating material covering the periphery of the core wire; a terminal fitting electrically connected to the core wire at the end of the insulated electric wire; and an adhesive tube covering the end of the insulating material. The terminal-attached electric wire includes a molding portion formed to cover a region extending from a core wire-connected portion of the terminal fitting which is connected to the core wire to a middle portion in an axial direction of the adhesive tube. The outer peripheral surface of the adhesive tube is adhered to the inner peripheral surface of the molding portion. The inner peripheral surface of the adhesive tube is adhered to the outer peripheral surface of the insulating material.
    Type: Application
    Filed: November 9, 2018
    Publication date: December 2, 2021
    Applicants: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Mitsuru HIROSE, Koji FUKUMOTO, Daisuke HASHIMOTO, Tetsuya NAKAMURA, Kazuo NAKASHIMA, Shigeyuki TANAKA, Taro FUJITA, Shinya NISHIKAWA
  • Publication number: 20210343447
    Abstract: 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: Application
    Filed: July 15, 2021
    Publication date: November 4, 2021
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Yutaka MATSUMURA, Shigeyuki TANAKA, Taro FUJITA, Takaya KOHORI, Masayuki ISHIKAWA