Patents by Inventor Yuji Ochi
Yuji Ochi 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: 20230056385Abstract: A differential signal transmission cable includes an insulation layer extending in a longitudinal direction of the differential signal transmission cable, a pair of signal lines extending in the longitudinal direction and buried inside the insulation layer, an intermediate layer covering an outer circumferential surface of the insulation layer, a shield, and catalyst particles. The shield includes an electroless plating layer covering an outer circumferential surface of the intermediate layer. The catalyst particles are dispersed between the intermediate layer and the electroless plating layer.Type: ApplicationFiled: January 30, 2020Publication date: February 23, 2023Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Kengo GOTO, Akihisa HOSOE, Yuto KOBAYASHI, Yuji OCHI
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Publication number: 20220319742Abstract: A coaxial cable includes an inner conductor having one center wire, and six outer wires stranded around the center wire, an insulator covering an outer periphery of the inner conductor, and a shield conductor covering an outer periphery of the insulator, wherein, in a cross section perpendicular to a longitudinal direction of the coaxial cable, a ratio of a total area of first regions which are respectively formed by a gap between the center wire and two adjacent outer wires, with respect to an area of a circle of the inner conductor, is 0.5% or higher and 2.0% or lower, and a ratio of a total area of second regions which are respectively formed by a gap between surfaces of the two adjacent outer wires and a surface of the insulator, with respect to the area of the circumscribed circle of the inner conductor, is 2.0% or higher and 5.0% or lower.Type: ApplicationFiled: August 18, 2021Publication date: October 6, 2022Inventors: Takaaki OKAMOTO, Yuji OCHI, Ryuuta FURUYASHIKI
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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: 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: 20220028582Abstract: A high-frequency coaxial cable used for high-frequency signal transmission includes an inner conductor an insulator surrounding an outer periphery of the inner conductor; a shield conductor surrounding an outer periphery of the insulator and a covering surrounding an outer periphery of the shield conductor, wherein the inner conductor is a compressed conductor having a plurality of silver-plated soft copper element wires compressed.Type: ApplicationFiled: March 5, 2020Publication date: January 27, 2022Inventors: Takaaki OKAMOTO, Yuji OCHI, Ryuuta FURUYASHIKI
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Publication number: 20210163728Abstract: According to one aspect of the present invention, a resin composition for an insulating layer includes: an olefinic resin as a main component; and a metal deactivator, wherein a content of the metal deactivator exceeds 0.05% by mass, and wherein a melting point of the metal deactivator is greater than or equal to 200° C.Type: ApplicationFiled: March 11, 2019Publication date: June 3, 2021Inventors: Syota MACHINAKA, Taro FUJITA, Shigeyuki TANAKA, Nayu YANAGAWA, Yuji OCHI, Satoshi OKANO, Yuto KOBAYASHI
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Publication number: 20210065931Abstract: 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: November 16, 2020Publication date: March 4, 2021Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Satoshi HASHIMOTO, Yuji OCHI, Masayuki ISHIKAWA, Takami SAGISAKA, Takaya KOHORI
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Patent number: 10861621Abstract: An insulated electric cable 10 has a core member I formed by stranding a plurality of core wires 4, each of the core wires 4 including a conductor 5 and an insulating layer 6 covering the conductor 5, an inner sheath 7 covering the core member I, an outer sheath 8 covering the inner sheath 7, and a paper tape 2 disposed between the core member I and the inner sheath 7 in a state that it is wrapped around the core member I, in which the outer sheath 8 is formed by a flame-retardant polyurethane resin, and a cross-sectional area of each of conductors 5 is within 0.18-3.0 mm2.Type: GrantFiled: September 17, 2019Date of Patent: December 8, 2020Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Satoshi Hashimoto, Yuji Ochi, Masayuki Ishikawa, Takami Sagisaka, Takaya Kohori
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Patent number: 10804009Abstract: A twinax cable 100 includes a twinax structure, the twinax structure including: a signal wire pair, the signal wire pair including a pair of signal wires formed of a first signal wire and a second signal wire, and an insulating layer configured to cover the pair of signal wires; a drain wire; and a shield tape arranged on the outer circumferential side of the insulating layer to cover the signal wire pair and the drain wire. The insulating layer is mainly composed of polyethylene. The insulating layer includes not less than 30 ppm and not more than 4000 ppm of a hindered phenol-based antioxidant. A dielectric tangent tan ? of the insulating layer at the time of application of a high-frequency electric field having a frequency of 10 GHz is not more than 3.0×10?4.Type: GrantFiled: June 20, 2018Date of Patent: October 13, 2020Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Nayu Yanagawa, Shinya Nishikawa, Taro Fujita, Yuto Kobayashi, Masaki Hayakawa, Atsushi Tsujino, Yuji Ochi
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Publication number: 20200013525Abstract: An insulated electric cable 10 has a core member 1 formed by stranding a plurality of core wires 4, each of the core wires 4 including a conductor 5 and an insulating layer 6 covering the conductor 5, an inner sheath 7 covering the core member I, an outer sheath 8 covering the inner sheath 7, and a paper tape 2 disposed between the core member I and the inner sheath 7 in a state that it is wrapped around the core member I, in which the outer sheath 8 is formed by a flame-retardant polyurethane resin, and a cross-sectional area of each of conductors 5 is within 0.18-3.Type: ApplicationFiled: September 17, 2019Publication date: January 9, 2020Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Satoshi HASHIMOTO, Yuji OCHI, Masayuki ISHIKAWA, Takami SAGISAKA, Takaya KOHORI
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Patent number: 10468157Abstract: An insulated electric cable 10 has a core member 1 formed by stranding a plurality of core wires 4, each of the core wires 4 including a conductor 5 and an insulating layer 6 covering the conductor 5, an inner sheath 7 covering the core member 1, an outer sheath 8 covering the inner sheath 7, and a paper tape 2 disposed between the core member 1 and the inner sheath 7 in a state that it is wrapped around the core member 1, in which the outer sheath 8 is formed by a flame-retardant polyurethane resin, and a cross-sectional area of each of conductors 5 is within 0.18-3.0 mm2.Type: GrantFiled: November 2, 2018Date of Patent: November 5, 2019Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Satoshi Hashimoto, Yuji Ochi, Masayuki Ishikawa, Takami Sagisaka, Takaya Kohori
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Publication number: 20190172610Abstract: A twinax cable 100 includes a twinax structure, the twinax structure including: a signal wire pair, the signal wire pair including a pair of signal wires formed of a first signal wire and a second signal wire, and an insulating layer configured to cover the pair of signal wires; a drain wire; and a shield tape arranged on the outer circumferential side of the insulating layer to cover the signal wire pair and the drain wire. The insulating layer is mainly composed of polyethylene. The insulating layer includes not less than 30 ppm and not more than 4000 ppm of a hindered phenol-based antioxidant. A dielectric tangent tan ? of the insulating layer at the time of application of a high-frequency electric field having a frequency of 10 GHz is not more than 3.0×10?4.Type: ApplicationFiled: June 20, 2018Publication date: June 6, 2019Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Nayu YANAGAWA, Shinya NISHIKAWA, Taro FUJITA, Yuto KOBAYASHI, Masaki HAYAKAWA, Atsushi TSUJINO, Yuji OCHI
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Publication number: 20190115123Abstract: An insulated electric cable 10 has a core member 1 formed by stranding a plurality of core wires 4, each of the core wires 4 including a conductor 5 and an insulating layer 6 covering the conductor 5, an inner sheath 7 covering the core member 1, an outer sheath 8 covering the inner sheath 7, and a paper tape 2 disposed between the core member 1 and the inner sheath 7 in a state that it is wrapped around the core member 1, in which the outer sheath 8 is formed by a flame-retardant polyurethane resin, and a cross-sectional area of each of conductors 5 is within 0.18-3.0 mm2.Type: ApplicationFiled: November 2, 2018Publication date: April 18, 2019Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Satoshi HASHIMOTO, Yuji OCHI, Masayuki ISHIKAWA, Takami SAGISAKA, Takaya KOHORI
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Patent number: 10262774Abstract: An insulated electric cable 10 has a core member 1 formed by stranding a plurality of core wires 4, each of the core wires 4 including a conductor 5 and an insulating layer 6 covering the conductor 5, an inner sheath 7 covering the core member 1, an outer sheath 8 covering the inner sheath 7, and a paper tape 2 disposed between the core member 1 and the inner sheath 7 in a state that it is wrapped around the core member 1, in which the outer sheath 8 is formed by a flame-retardant polyurethane resin, and a cross-sectional area of each of conductors 5 is within 0.18-3.0 mm2.Type: GrantFiled: September 25, 2017Date of Patent: April 16, 2019Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Satoshi Hashimoto, Yuji Ochi, Masayuki Ishikawa, Takami Sagisaka, Takaya Kohori
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Publication number: 20180294073Abstract: Provided is an insulated electric wire that mainly contains a polyolefin resin, has excellent flexibility, heat life, and waterproofness, and is used in wiring of vehicles such as automobiles, and an insulating resin composition used in forming an insulating layer of this insulated electric wire. The insulating resin composition contains a first copolymer, which is a copolymer of ethylene and an unsaturated hydrocarbon having 4 or more carbon atoms and which has a density less than 0.88 g/cm3, a second copolymer which is a copolymer of ethylene and an acrylic acid ester or a methacrylic acid ester, a flame retardant, and a crosslinking aid. Also provided is a crosslinked body having a 2% secant modulus of 35 MPa or less at room temperature and an elastic modulus of 2 MPa or more at 150° C.Type: ApplicationFiled: June 14, 2018Publication date: October 11, 2018Inventors: Shigeyuki TANAKA, Taro FUJITA, Shinya NISHIKAWA, Atsuko SHINOMIYA, Yuji OCHI
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Publication number: 20180294074Abstract: Provided is an insulated electric wire that mainly contains a polyolefin resin, has excellent flexibility, heat life, and waterproofness, and is used in wiring of vehicles such as automobiles, and an insulating resin composition used in forming an insulating layer of this insulated electric wire. The insulating resin composition contains a first copolymer, which is a copolymer of ethylene and an unsaturated hydrocarbon having 4 or more carbon atoms and which has a density less than 0.88 g/cm3, a second copolymer which is a copolymer of ethylene and an acrylic acid ester or a methacrylic acid ester, a flame retardant, and a crosslinking aid. Also provided is a crosslinked body having a 2% secant modulus of 35 MPa or less at room temperature and an elastic modulus of 2 MPa or more at 150° C.Type: ApplicationFiled: June 14, 2018Publication date: October 11, 2018Inventors: Shigeyuki TANAKA, Taro FUJITA, Shinya NISHIKAWA, Atsuko SHINOMIYA, Yuji OCHI
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Patent number: 9905338Abstract: An insulated electric cable 10 has a core member 1 formed by stranding a plurality of core wires 4, each of the core wires 4 including a conductor 5 and an insulating layer 6 covering the conductor 5, an inner sheath 7 covering the core member 1, an outer sheath 8 covering the inner sheath 7, and a paper tape 2 disposed between the core member 1 and the inner sheath 7 in a state that it is wrapped around the core member 1, in which the outer sheath 8 is formed by a flame-retardant polyurethane resin, and a cross-sectional area of each of conductors 5 is within 0.18-3.0 mm2.Type: GrantFiled: April 29, 2014Date of Patent: February 27, 2018Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Satoshi Hashimoto, Yuji Ochi, Masayuki Ishikawa, Takami Sagisaka, Takaya Kohori
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Publication number: 20180025808Abstract: An insulated electric cable 10 has a core member 1 formed by stranding a plurality of core wires 4, each of the core wires 4 including a conductor 5 and an insulating layer 6 covering the conductor 5, an inner sheath 7 covering the core member 1, an outer sheath 8 covering the inner sheath 7, and a paper tape 2 disposed between the core member 1 and the inner sheath 7 in a state that it is wrapped around the core member 1, in which the outer sheath 8 is formed by a flame-retardant polyurethane resin, and a cross-sectional area of each of conductors 5 is within 0.18-3.0 mm2.Type: ApplicationFiled: September 25, 2017Publication date: January 25, 2018Inventors: Satoshi HASHIMOTO, Yuji OCHI, Masayuki ISHIKAWA, Takami SAGISAKA, Takaya KOHORI
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Patent number: 9805843Abstract: An insulated electric cable 10 has a core member 1 formed by stranding a plurality of core wires 4, each of the core wires 4 including a conductor 5 and an insulating layer 6 covering the conductor 5, an inner sheath 7 covering the core member 1, an outer sheath 8 covering the inner sheath 7, and a paper tape 2 disposed between the core member 1 and the inner sheath 7 in a state that it is wrapped around the core member 1, in which the outer sheath 8 is formed by a flame-retardant polyurethane resin, and a cross-sectional area of each of conductors 5 is within 0.18-3.0 mm2.Type: GrantFiled: April 29, 2014Date of Patent: October 31, 2017Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Satoshi Hashimoto, Yuji Ochi, Masayuki Ishikawa, Takami Sagisaka, Takaya Kohori
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Publication number: 20170004906Abstract: Provided is an insulated electric wire that mainly contains a polyolefin resin, has excellent flexibility, heat life, and waterproofness, and is used in wiring of vehicles such as automobiles, and an insulating resin composition used in forming an insulating layer of this insulated electric wire. The insulating resin composition contains a first copolymer, which is a copolymer of ethylene and an unsaturated hydrocarbon having 4 or more carbon atoms and which has a density less than 0.88 g/cm3, a second copolymer which is a copolymer of ethylene and an acrylic acid ester or a methacrylic acid ester, a flame retardant, and a crosslinking aid. Also provided is a crosslinked body having a 2% secant modulus of 35 MPa or less at room temperature and an elastic modulus of 2 MPa or more at 150° C.Type: ApplicationFiled: April 9, 2015Publication date: January 5, 2017Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Shigeyuki TANAKA, Taro FUJITA, Shinya NISHIKAWA, Atsuko SHINOMIYA, Yuji OCHI