Patents by Inventor Yutaka Matsumura
Yutaka Matsumura 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: 20250079043Abstract: A multicore cable includes an oil absorptive interposition, and a core disposed to surround the oil absorptive interposition and including electrical wires, the electrical wires being twisted together. In a cross-section perpendicular to a longitudinal direction of the core, the core has layers in which the electrical wires are arranged on circumferences, and an innermost layer of the layers is closest to the oil absorptive interposition. A twist pitch of the electrical wires in the innermost layer is greater than or equal to 0.45 times and less than 0.8 times a twist pitch of the electrical wires in an outermost layer of the layers.Type: ApplicationFiled: June 26, 2024Publication date: March 6, 2025Inventors: Kenji HORI, Takumi OOSHIMA, Takashi YABE, Ryota FUKUMOTO, Yutaka MATSUMURA
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Publication number: 20250069774Abstract: A multicore cable according to one embodiment of the present disclosure includes a core wire including a plurality of core electric wires stranded together; and a sheath layer disposed around the core wire, wherein each of the core wires includes a conductor including a plurality of elemental wires twisted together and an insulating layer that covers an outer periphery of the conductor, wherein the sheath layer includes an inner sheath layer and an outer sheath layer covering the inner sheath layer, wherein a main component of the inner sheath layer is a copolymer of ethylene and (meth) acrylic acid alkyl ester, and wherein a content of the (meth) acrylic acid alkyl ester in the copolymer is more than 7 mass %.Type: ApplicationFiled: October 5, 2022Publication date: February 27, 2025Applicant: Sumitomo Electric Industries, Ltd.Inventors: Shigeyuki TANAKA, Yutaka MATSUMURA, Taro FUJITA, Takumi OOSHIMA, Hirotaka KATO, Jo YAGISAWA, Shinya NISHIKAWA
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Patent number: 12131840Abstract: 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: GrantFiled: October 30, 2019Date of Patent: October 29, 2024Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Shigeyuki Tanaka, Yutaka Matsumura, Taro Fujita, Takumi Ooshima, Jo Yagisawa
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Publication number: 20240311225Abstract: A system predicts an abnormality of a first device. The system includes processing circuitry. The processing circuitry calculates a first increment value of a number of uses of the first device included in a first apparatus, based on a first total number of uses of the first device within a first predetermined period. The processing circuitry determines an abnormality of the first device based on the first increment value.Type: ApplicationFiled: February 29, 2024Publication date: September 19, 2024Applicant: Ricoh Company, Ltd.Inventor: Yutaka Matsumura
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Patent number: 12073963Abstract: 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: GrantFiled: June 1, 2020Date of Patent: August 27, 2024Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Yutaka Matsumura, Shigeyuki Tanaka, Taro Fujita, Takaya Kohori, Takumi Ooshima, Jo Yagisawa
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Publication number: 20240282480Abstract: 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: ApplicationFiled: August 3, 2020Publication date: August 22, 2024Applicant: Sumitomo Electric Industries, Ltd.Inventors: Yutaka MATSUMURA, Shigeyuki TANAKA, Taro FUJITA, Takumi OOSHIMA, Jo YAGISAWA
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Publication number: 20240212878Abstract: 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: ApplicationFiled: March 8, 2022Publication date: June 27, 2024Applicant: Sumitomo Electric Industries, Ltd.Inventors: Shigeyuki TANAKA, Yutaka MATSUMURA, Yoshitaka OGASAWARA, Naoshi YOKOYAMA, Takumi OOSHIMA
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Publication number: 20240186662Abstract: A lead wire for a nonaqueous electrolyte battery of the present disclosure has a conductor, and an insulating film having a plurality of layers and covering at least a part of the outer peripheral surface of the conductor, wherein the insulating film has a conductor-covering layer laminated on a surface of the conductor, a first insulating layer laminated on an outermost surface of the insulating film, and a second insulating layer laminated on an inner surface of the first insulating layer; the conductor-covering layer contains an acid-modified polyolefin; and the ratio (E1/E2) of an elastic modulus E1 of the first insulating layer at any one temperature in the range of 80° C. or more and 125° C. or less to an elastic modulus E2 of the second insulating layer at the same temperature as in the first insulating layer, is 0.10 or more and 10.00 or less.Type: ApplicationFiled: February 16, 2024Publication date: June 6, 2024Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Yutaka MATSUMURA, Kengo GOTO, Akira TSUCHIKO
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Patent number: 11973197Abstract: A lead wire for a nonaqueous electrolyte battery has a conductor, and an insulating film having a plurality of layers and covering at least a part of the outer peripheral surface of the conductor, wherein the insulating film has a conductor-covering layer laminated on a surface of the conductor, a first insulating layer laminated on an outermost surface of the insulating film, and a second insulating layer laminated on an inner surface of the first insulating layer; the conductor-covering layer contains an acid-modified polyolefin; and the ratio (E1/E2) of an elastic modulus E1 of the first insulating layer at any one temperature in the range of 80° C. or more and 125° C. or less to an elastic modulus E2 of the second insulating layer at the same temperature as in the first insulating layer, is 0.10 or more and 10.00 or less.Type: GrantFiled: December 27, 2021Date of Patent: April 30, 2024Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Yutaka Matsumura, Kengo Goto, Akira Tsuchiko
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Patent number: 11772585Abstract: A wiring system for an automobile includes: a first connection device connected to a corresponding one of electrical components so as to communicate with and supply power to the corresponding electrical component; and a plurality of second connection devices each connected to a corresponding one of the electrical components so as to communicate with and supply power to the corresponding electrical component, wherein a bus communication line sequentially passes through the first connection device and the plurality of second connection devices, and is branched so as to communicate with the electrical components in the first connection device and the plurality of second connection devices, and a plurality of power sources mounted in the automobile are connected to the first connection device and integrated, and electric power supplied from the plurality of power sources is distributed from the first connection device to the plurality of second connection devices.Type: GrantFiled: August 26, 2019Date of Patent: October 3, 2023Assignees: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Yutaka Matsumura, Akio Ishihara, Shinya Itou
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Publication number: 20230207973Abstract: A lead wire for a nonaqueous electrolyte battery has a conductor, and an insulating film having a plurality of layers and covering at least a part of the outer peripheral surface of the conductor, wherein the insulating film has a conductor-covering layer laminated on a surface of the conductor, a first insulating layer laminated on an outermost surface of the insulating film, and a second insulating layer laminated on an inner surface of the first insulating layer; the conductor-covering layer contains an acid-modified polyolefin; and the ratio (S1/S2) of a shear failure strength S1 of the first insulating layer at any one temperature in the range of 80° C. or more and 125° C. or less to a shear failure strength S2 of the second insulating layer at the same temperature as in the first insulating layer, is 0.33 or more and 3.0 or less.Type: ApplicationFiled: December 27, 2021Publication date: June 29, 2023Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Yutaka MATSUMURA, Kengo GOTO, Akira TSUCHIKO
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Publication number: 20230207891Abstract: A lead wire for a nonaqueous electrolyte battery has a conductor, and an insulating film having a plurality of layers and covering at least a part of the outer peripheral surface of the conductor, wherein the insulating film has a conductor-covering layer laminated on a surface of the conductor, a first insulating layer laminated on an outermost surface of the insulating film, and a second insulating layer laminated on an inner surface of the first insulating layer; the conductor-covering layer contains an acid-modified polyolefin; and the ratio (E1/E2) of an elastic modulus E1 of the first insulating layer at any one temperature in the range of 80° C. or more and 125° C. or less to an elastic modulus E2 of the second insulating layer at the same temperature as in the first insulating layer, is 0.10 or more and 10.00 or less.Type: ApplicationFiled: December 27, 2021Publication date: June 29, 2023Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Yutaka MATSUMURA, Kengo GOTO, Akira TSUCHIKO
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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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Publication number: 20230034227Abstract: 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: ApplicationFiled: October 30, 2019Publication date: February 2, 2023Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Shigeyuki TANAKA, Yutaka MATSUMURA, Taro FUJITA, Takumi OOSHIMA, Jo YAGISAWA
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Publication number: 20220406487Abstract: 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: ApplicationFiled: August 3, 2020Publication date: December 22, 2022Applicant: Sumitomo Electric Industries, Ltd.Inventors: Shigeyuki TANAKA, Yutaka MATSUMURA, Taro FUJITA, Takumi OOSHIMA, Jo YAGISAWA
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Publication number: 20220396222Abstract: A wiring system for an automobile includes: a first connection device connected to a corresponding one of electrical components so as to communicate with and supply power to the corresponding electrical component; and a plurality of second connection devices each connected to a corresponding one of the electrical components so as to communicate with and supply power to the corresponding electrical component, wherein a bus communication line sequentially passes through the first connection device and the plurality of second connection devices, and is branched so as to communicate with the electrical components in the first connection device and the plurality of second connection devices, and a plurality of power sources mounted in the automobile are connected to the first connection device and integrated, and electric power supplied from the plurality of power sources is distributed from the first connection device to the plurality of second connection devices.Type: ApplicationFiled: August 26, 2019Publication date: December 15, 2022Inventors: Yutaka MATSUMURA, Akio ISHIHARA, Shinya ITOU
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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: 20220051831Abstract: An object is to provide a technique according to which it is possible to restrict a path of a wiring member while reducing the space taken up by the wiring member. A wiring member includes a wiring body and a plurality of linear transmission members. The wiring body is formed flat and includes a plate-like transmission member having a conductor plate formed to be rigid enough to maintain its own shape. The plurality of linear transmission members extend in the same direction as the wiring body and are fixed to the wiring body in a state of being arranged side by side in a width direction of the wiring body on a main surface of the wiring body.Type: ApplicationFiled: August 21, 2019Publication date: February 17, 2022Inventor: Yutaka MATSUMURA