公开(公告)号：US10978219B2

公开(公告)日：2021-04-13

申请号：US16886453

申请日：2020-05-28

Applicant: ESSEX FURUKAWA MAGNET WIRE JAPAN CO., LTD.

Inventor： Keiichi Tomizawa ,  Akira Tachibana ,  Keisuke Ikeda ,  Daisuke Muto ,  Hideo Fukuda

IPC: H01B7/02 ,  H01F5/06 ,  H02K3/30

Abstract: 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.

公开(公告)号：US12068090B2

公开(公告)日：2024-08-20

申请号：US17680720

申请日：2022-02-25

Applicant: ESSEX FURUKAWA MAGNET WIRE JAPAN CO., LTD.

Inventor： Ayumi Yamamoto ,  Keisuke Ikeda ,  Keiichi Tomizawa

IPC: H01B3/46 ,  H01B3/30 ,  H01B7/02 ,  H01F5/06

CPC classification number: H01B3/46 ,  H01B3/308 ,  H01B7/02 ,  H01F5/06

Abstract: 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.

公开(公告)号：US11450450B2

公开(公告)日：2022-09-20

申请号：US17034237

申请日：2020-09-28

Applicant: ESSEX FURUKAWA MAGNET WIRE JAPAN CO., LTD.

Inventor： Natsuko Hara ,  Keisuke Ikeda ,  Daisuke Muto

IPC: H01B7/02 ,  H01B3/42 ,  H01B13/06 ,  H01F5/06

Abstract: 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.

公开(公告)号：US10991483B2

公开(公告)日：2021-04-27

申请号：US15982751

申请日：2018-05-17

Applicant: ESSEX FURUKAWA MAGNET WIRE JAPAN CO., LTD.

Inventor： Keisuke Ikeda ,  Hideo Fukuda

IPC: H01B7/02 ,  H01B7/30 ,  H01B13/00 ,  H01B7/00 ,  H01B13/14 ,  H01B3/42 ,  H01R4/02 ,  H01R4/70

Abstract: 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.