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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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: 20190077341Abstract: A multi-core cable for vehicle includes two power wires, two signal wires, two electric wires, and a sheath. The two power wires have the same size and are made of the same material. The two signal wires have the same size and are made of the same material, and a pair of the two signal wires is twisted and is configured a twisted pair of signal wires. The two electric wires have the same size and are made of the same material, and a pair of the electric wires is twisted and is configured as a twisted pair of electric wires. The two power wires, the twisted pair of signal wires and the twisted pair of electric wires are stranded.Type: ApplicationFiled: June 2, 2017Publication date: March 14, 2019Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Takaya KOHORI, Hiroyuki OKAWA
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Publication number: 20190074108Abstract: Provided are a core electric wire for 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 multi-core cable according to an aspect of the present invention comprises a conductor obtained by twisting element wires, and an insulating layer that covers an outer periphery of the conductor, in which, in a transverse cross section of the conductor, a percentage of an area occupied by void regions among the element wires is from 5% to 20%. An average area of the conductor in the transverse cross section is preferably from 1.0 mm2 to 3.0 mm2. An average diameter of the element wires in the conductor is preferably from 40 ?m to 100 ?m, and the number of the element wires is preferably from 196 to 2,450. The conductor is preferably obtained by twisting stranded element wires obtained by twisting subsets of element wires.Type: ApplicationFiled: October 9, 2018Publication date: March 7, 2019Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Shigeyuki TANAKA, Shinya NISHIKAWA, Hiroyuki OKAWA, Takaya KOHORI, Yuhei MAYAMA, Takayuki HIRAI
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Publication number: 20190057795Abstract: Provided are a core electric wire for 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 multi-core cable according to an aspect of the present invention comprises a conductor obtained by twisting element wires, and an insulating layer that covers an outer periphery of the conductor, in which, in a transverse cross section of the conductor, a percentage of an area occupied by void regions among the element wires is from 5% to 20%. An average area of the conductor in the transverse cross section is preferably from 1.0 mm2 to 3.0 mm2. An average diameter of the element wires in the conductor is preferably from 40 ?m to 100 ?m, and the number of the element wires is preferably from 196 to 2,450. The conductor is preferably obtained by twisting stranded element wires obtained by twisting subsets of element wires.Type: ApplicationFiled: October 9, 2018Publication date: February 21, 2019Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Shigeyuki TANAKA, Shinya NISHIKAWA, Hiroyuki OKAWA, Takaya KOHORI, Yuhei MAYAMA, Takayuki HIRAI
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Patent number: 10176908Abstract: Provided are a core electric wire for 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 multi-core cable according to an aspect of the present invention comprises a conductor obtained by twisting element wires, and an insulating layer that covers an outer periphery of the conductor, in which, in a transverse cross section of the conductor, a percentage of an area occupied by void regions among the element wires is from 5% to 20%. An average area of the conductor in the transverse cross section is preferably from 1.0 mm2 to 3.0 mm2. An average diameter of the element wires in the conductor is preferably from 40 ?m to 100 ?m, and the number of the element wires is preferably from 196 to 2,450. The conductor is preferably obtained by twisting stranded element wires obtained by twisting subsets of element wires.Type: GrantFiled: September 30, 2015Date of Patent: January 8, 2019Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Shigeyuki Tanaka, Shinya Nishikawa, Hiroyuki Okawa, Takaya Kohori, Yuhei Mayama, Takayuki Hirai
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Patent number: 10102944Abstract: A multi-core cable for vehicles comprises two power lines, two signal lines, two electric wires, and a jacket. The two power lines are the same in size and material, each comprise an insulation layer composed of an inner layer and an outer layer, and are excellent in abrasion resistance and bending resistance. The two signal lines are the same in size and material and the two lines are twisted as a set to constitute a twisted pair of the signal lines. The two electric wires are the same in size and material and the two wires are twisted as a set to constitute a twisted pair of the electric wires. The two power lines, the twisted pair of the signal lines, and the twisted pair of the electric wires are integrally twisted.Type: GrantFiled: August 17, 2017Date of Patent: October 16, 2018Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Takaya Kohori, Hiroyuki Okawa
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Publication number: 20180261356Abstract: The electric wire according to one aspect of the present invention is an electric wire comprising an insulated electric wire and one or more coating layers covering the insulated electric wire, wherein at least one layer of the one or more coating layers is formed from a resin composition containing a thermoplastic polyurethane elastomer and an allophanate crosslinking agent. The electric wire having such a characteristic feature is excellent in abrasion resistance and heat resistance and can be produced at low costs.Type: ApplicationFiled: May 9, 2018Publication date: September 13, 2018Inventors: Yuhei MAYAMA, Takaya KOHORI
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Publication number: 20180182508Abstract: A core electric wire for a multi-core cable according to an aspect of the present invention comprises a conductor obtained by twisting element wires, and an insulating layer covering the conductor, a principal component of the insulating layer being a copolymer of ethylene and an ?-olefin having a carbonyl group; the ?-olefin content in the copolymer being 14% to 46% by mass; and a mathematical product C*E being 0.01 to 0.9, wherein C is a linear expansion coefficient of the insulating layer at from 25° C. to ?35° C., and E is a modulus of elasticity thereof at ?35° C. Average area of the conductor in the transverse cross section is 1.0 to 3.0 mm2. Average diameter of the element wires in the conductor is 40 to 100 ?m, and number of the element wires is 196 to 2,450.Type: ApplicationFiled: February 26, 2018Publication date: June 28, 2018Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Shigeyuki TANAKA, Shinya NISHIKAWA, Hiroyuki OKAWA, Takaya KOHORI, Yuhei MAYAMA, Takayuki HIRAI
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Patent number: 9997279Abstract: The electric wire according to one aspect of the present invention is an electric wire comprising an insulated electric wire and one or more coating layers covering the insulated electric wire, wherein at least one layer of the one or more coating layers is formed from a resin composition containing a thermoplastic polyurethane elastomer and an allophanate crosslinking agent. The electric wire having such a characteristic feature is excellent in abrasion resistance and heat resistance and can be produced at low costs.Type: GrantFiled: April 7, 2016Date of Patent: June 12, 2018Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Yuhei Mayama, Takaya Kohori
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Patent number: 9928937Abstract: A core electric wire for a multi-core cable according to an aspect of the present invention comprises a conductor obtained by twisting element wires, and an insulating layer covering the conductor, a principal component of the insulating layer being a copolymer of ethylene and an ?-olefin having a carbonyl group; the ?-olefin content in the copolymer being 14% to 46% by mass; and a mathematical product C*E being 0.01 to 0.9, wherein C is a linear expansion coefficient of the insulating layer at from 25° C. to ?35° C., and E is a modulus of elasticity thereof at ?35° C. Average area of the conductor in the transverse cross section is 1.0 to 3.0 mm2. Average diameter of the element wires in the conductor is 40 to 100 ?m, and number of the element wires is 196 and 2,450.Type: GrantFiled: September 30, 2015Date of Patent: March 27, 2018Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Shigeyuki Tanaka, Shinya Nishikawa, Hiroyuki Okawa, Takaya Kohori, Yuhei Mayama, Takayuki Hirai
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Publication number: 20180061525Abstract: A multi-core cable for vehicles comprises two power lines, two signal lines, two electric wires, and a jacket. The two power lines are the same in size and material, each comprise an insulation layer composed of an inner layer and an outer layer, and are excellent in abrasion resistance and bending resistance. The two signal lines are the same in size and material and the two lines are twisted as a set to constitute a twisted pair of the signal lines. The two electric wires are the same in size and material and the two wires are twisted as a set to constitute a twisted pair of the electric wires. The two power lines, the twisted pair of the signal lines, and the twisted pair of the electric wires are integrally twisted.Type: ApplicationFiled: August 17, 2017Publication date: March 1, 2018Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Takaya KOHORI, Hiroyuki OKAWA
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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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Publication number: 20180005723Abstract: A coated electric wire includes a resin insulating layer configured to cover a conductor, the insulating layer covers the conductor with a thickness of 0.3 mm to 0.4 mm, a cross-sectional area of the conductor is 1.5 mm2 to 3.0 mm2, the conductor is configured by stranding a plurality of stranded wires, each of the stranded wires is configured by stranding a plurality of wires, and a diameter of the wires constituting the stranded wire arranged at a center of the conductor is greater than a diameter of the wires constituting the other stranded wires.Type: ApplicationFiled: June 16, 2017Publication date: January 4, 2018Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Takaya KOHORI, Hiroyuki OKAWA
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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: 20170309370Abstract: Provided are a core electric wire for a multi-core cable superior in flex resistance at low temperature, and a multi-core cable employing the same. The core electric wire for a multi-core cable according to an aspect of the present invention comprises a conductor obtained by twisting element wires, and an insulating layer covering the conductor, a principal component of the insulating layer being a copolymer of ethylene and an ?-olefin having a carbonyl group; the ?-olefin content in the copolymer being 14% to 46% by mass; and a mathematical product C*E being 0.01 to 0.9, wherein C is a linear expansion coefficient of the insulating layer at from 25° C. to ?35° C., and E is a modulus of elasticity thereof at ?35° C. Average area of the conductor in the transverse cross section is 1.0 to 3.0 mm2. Average diameter of the element wires in the conductor is 40 to 100 ?m, and number of the element wires is 196 to 2,450.Type: ApplicationFiled: September 30, 2015Publication date: October 26, 2017Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Shigeyuki TANAKA, Shinya NISHIKAWA, Hiroyuki OKAWA, Takaya KOHORI, Yuhei MAYAMA, Takayuki HIRAI
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Publication number: 20170309373Abstract: Provided are a core electric wire for 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 multi-core cable according to an aspect of the present invention comprises a conductor obtained by twisting element wires, and an insulating layer that covers an outer periphery of the conductor, in which, in a transverse cross section of the conductor, a percentage of an area occupied by void regions among the element wires is from 5% to 20%. An average area of the conductor in the transverse cross section is preferably from 1.0 mm2 to 3.0 mm2. An average diameter of the element wires in the conductor is preferably from 40 ?m to 100 ?m, and the number of the element wires is preferably from 196 to 2,450. The conductor is preferably obtained by twisting stranded element wires obtained by twisting subsets of element wires.Type: ApplicationFiled: September 30, 2015Publication date: October 26, 2017Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Shigeyuki TANAKA, Shinya NISHIKAWA, Hiroyuki OKAWA, Takaya KOHORI, Yuhei MAYAMA, Takayuki HIRAI
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Publication number: 20160300641Abstract: The electric wire according to one aspect of the present invention is an electric wire comprising an insulated electric wire and one or more coating layers covering the insulated electric wire, wherein at least one layer of the one or more coating layers is formed from a resin composition containing a thermoplastic polyurethane elastomer and an allophanate crosslinking agent. The electric wire having such a characteristic feature is excellent in abrasion resistance and heat resistance and can be produced at low costs.Type: ApplicationFiled: April 7, 2016Publication date: October 13, 2016Inventors: Yuhei MAYAMA, Takaya KOHORI
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Patent number: 9412497Abstract: An object of the invention is to provide a cable capable of matching exposed dimensions of conductors with a predetermined dimension to perform good processing at the time of distal end processing. In a cable (10) in which a pair of insulated wires (1) each of which is formed by covering a conductor (4) with an insulator (5) is mutually stranded and a periphery of these stranded insulated wires (1) is covered with a sheath (6) made of an inner sheath (2) and an outer sheath (3), the conductor (4) is formed by assembling a plurality of stranded wires (4a) each of which is formed by wholly stranding a plurality of wires (4b), and by further wholly stranding the stranded wires (4a).Type: GrantFiled: January 18, 2013Date of Patent: August 9, 2016Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Satoshi Hashimoto, Yuji Ochi, Takaya Kohori, Takami Sagisaka, Yuhei Mayama