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公开(公告)号:US20240312668A1
公开(公告)日:2024-09-19
申请号:US18675802
申请日:2024-05-28
发明人: Katsumi OSADA , Michiaki YAMAHATA , Hideo FUKUDA , Takefumi KAJI , Yuki TAKAHASHI , Eiji KIBA
摘要: An insulated wire includes an assembled conductor obtained by assembling or twisting a plurality of strands; an insulating layer coating an outer periphery of the assembled conductor; and a filler region that fills a space between the strands and a space between the strands and the insulating layer and includes a thermoplastic resin.
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公开(公告)号:US20220102950A1
公开(公告)日:2022-03-31
申请号:US17536162
申请日:2021-11-29
发明人: Keisuke ATSUMI
摘要: A peeling device for a resin layer coating a rectangular wire in which an outer side of a metal conductor having a rectangular shape in cross section is coated with the resin layer, including a processing blade configured to peel off the resin layer, a jig configured to hold the rectangular wire, and a position detection means configured to detect a position of a cutting edge of the processing blade with respect to a surface of the metal conductor, in which the cutting edge of the processing blade is caused to penetrate into a predetermined thickness position of the resin layer, and the processing blade and the rectangular wire are relatively moved in a longitudinal direction of the rectangular wire without contact of the cutting edge with the metal conductor to perform treatment of peeling off the resin layer.
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公开(公告)号:US11450450B2
公开(公告)日:2022-09-20
申请号:US17034237
申请日:2020-09-28
发明人: Natsuko Hara , Keisuke Ikeda , Daisuke Muto
摘要: An insulated wire comprising a conductor and a bubble-containing insulating layer, directly or indirectly coating the outer periphery of the conductor and containing a thermosetting resin, wherein the bubbles in the bubble-containing insulating layer include flattened bubbles whose oblateness in the cross-section perpendicular to the longitudinal direction of the insulated wire (lateral length of the bubble cross-sectional shape/vertical length of the bubble cross-sectional shape) is 1.5 or more and 5.0 or less.
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公开(公告)号:US11437163B2
公开(公告)日:2022-09-06
申请号:US17037013
申请日:2020-09-29
发明人: Natsuko Hara , Keiichi Tomizawa , Hideo Fukuda
IPC分类号: H01B3/30 , C08G73/10 , C09D179/08
摘要: An insulated wire, containing a conductor and an insulating film provided in contact with the conductor, in which the insulating film provided in contact with the conductor contains a polyimide resin, and the polyimide resin contains a constituting unit (A) derived from 2,2-bis[4-(4-amininophenoxy)phenyl]propane and a constituting unit (B) derived from 9,9-bis(4-aminophenyl)fluorene as a diamine-derived constituting unit; the polyimide resin has an imide group concentration of 25.0% or less; and the ratio of the content of the constituting unit (B) occupied in the diamine-derived constituting unit in the polyimide resin is 1 to 40 mol %.
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公开(公告)号:US10991483B2
公开(公告)日:2021-04-27
申请号:US15982751
申请日:2018-05-17
发明人: Keisuke Ikeda , Hideo Fukuda
摘要: An assembled wire, having: an assembled conductor composed of a plurality of conductor strands each having a rectangular cross-section, stacked and arranged each other across an interlayer insulating layer; an insulating outer layer that coats the assembled conductor including the interlayer insulating layer; and an adhesion layer composed of a thermoplastic resin having a thickness of 3 μm or more and 10 μm or less between the assembled conductor and the insulating outer layer.
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公开(公告)号:US11217364B2
公开(公告)日:2022-01-04
申请号:US16935426
申请日:2020-07-22
发明人: Keiichi Tomizawa , Daisuke Muto , Satoshi Saito
摘要: An insulated wire containing a thermoplastic resin layer (A) as a covering layer directly or indirectly on a rectangular conductor, in which the insulated wire has at least one protruding part which is continuous in a longitudinal direction of said insulated wire, on a surface of a portion of the thermoplastic resin layer (A), which portion corresponds to at least one side of a cross-section of the insulated wire, said protruding part and a flat part of the surface having the protruding part forms a curved portion with a radius of curvature of 0.01 to 0.75 mm in the cross-section of the insulated wire, and a lateral face of the protruding part has a slope of less than 90° to the flat part of the surface having the protruding part in the cross-section of the insulated wire, a coil produced by processing the insulated wire by winding, and an electric/electronic equipment comprising the coil.
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公开(公告)号:US10978219B2
公开(公告)日:2021-04-13
申请号:US16886453
申请日:2020-05-28
发明人: Keiichi Tomizawa , Akira Tachibana , Keisuke Ikeda , Daisuke Muto , Hideo Fukuda
摘要: Provided is an assembled wire 10 having a substantially rectangular cross section, and is formed by assembling a plurality of strands 7. Each strand 7 has a conductor portion 11 and a strand insulating layer 13 covering the conductor portion 11. The strand insulating layer 13 preferably contains at least one kind of resin in which 50% weight loss in Tg-DTA occurs at from 300° C. to 500° C. The strand insulating layer 13 contains particles. The particles are particles having volume resistivity of 1×106 Ω·cm or more, and, for example, inorganic substances such as silica, titania, alumina, aluminum nitride, magnesium oxide, silicon nitride, and silicon carbide; and resins such as silicone are applicable.
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公开(公告)号:US12068090B2
公开(公告)日:2024-08-20
申请号:US17680720
申请日:2022-02-25
发明人: Ayumi Yamamoto , Keisuke Ikeda , Keiichi Tomizawa
摘要: An insulated wire, including: a conductor and an insulating film covering the conductor; in which at least one insulating layer constituting the insulating film contains: a thermosetting resin A, and a resin B that is ranked lower than the thermosetting resin A in a tribo-electric series.
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公开(公告)号:US11437167B2
公开(公告)日:2022-09-06
申请号:US16909861
申请日:2020-06-23
发明人: Akira Tachibana , Shoichi Danjo
摘要: An insulated wire includes: a copper alloy conductor; and at least one resin layer directly or indirectly coated on an outer peripheral face of the copper alloy conductor, in which the copper alloy conductor has a composition where a total content of metal components selected from Al, Be, Cd, Mg, Pb, Ni, P, Sn, and Cr is from 0.1 to 2.0 ppm and content of copper is 99.96 mass % or higher, and has a specific texture where an average orientation density in an area where φ2=0 degrees, φ1=0 degrees, and Φ=from 0 degrees to 90 degrees is from 3.0 to less than 35.0, and a maximum orientation density in an area where φ2=35 degrees, φ1=from 45 degrees to 55 degrees, and Φ=from 65 degrees to 80 degrees is from 1.0 to less than 30.0.
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公开(公告)号:US20220181043A1
公开(公告)日:2022-06-09
申请号:US17680720
申请日:2022-02-25
发明人: Ayumi YAMAMOTO , Keisuke IKEDA , Keiichi TOMIZAWA
摘要: An insulated wire, including: a conductor and an insulating film covering the conductor; in which at least one insulating layer constituting the insulating film contains: a thermosetting resin A, and a resin B that is ranked lower than the thermosetting resin A in a tribo-electric series.
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