公开(公告)号：US20200258656A1

公开(公告)日：2020-08-13

申请号：US16859432

申请日：2020-04-27

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Satoshi YAMAZAKI ,  Satoshi YAMASHITA ,  Kenji HATAMOTO ,  Hideki AIZAWA

IPC: H01B7/08 ,  H01B5/10 ,  C01B32/158 ,  H01B7/42 ,  H01B1/04 ,  H01B7/00

Abstract: The present disclosure provides a coated carbon nanotube electric wire that excels in visibility as well as weight reduction, abrasion resistance, and insulation reliability. A coated carbon nanotube electric wire includes a carbon nanotube wire made up of one or more carbon nanotube aggregates formed by a plurality of carbon nanotubes, and an insulating coating layer configured to coat the carbon nanotube wire, in which arithmetic mean roughness (Ra1) of an outer surface of the carbon nanotube wire in a circumferential direction is smaller than arithmetic mean roughness (Ra2) of an outer surface of the insulating coating layer in the circumferential direction.

公开(公告)号：US20200251248A1

公开(公告)日：2020-08-06

申请号：US16857972

申请日：2020-04-24

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Satoshi YAMAZAKI ,  Satoshi YAMASHITA ,  Kenji HATAMOTO ,  Hideki AIZAWA

IPC: H01B7/08 ,  C01B32/168 ,  H01B1/04 ,  H01B7/42

Abstract: The present disclosure provides a coated carbon nanotube electric wire capable of realizing an excellent insulation property, and additionally realizing excellent adhesiveness, while having excellent electroconductivity comparable to those of wires composed of copper, aluminum and the like. A coated carbon nanotube electric wire includes a carbon nanotube wire composed of a single or a plurality of carbon nanotube aggregates each constituted of a plurality of carbon nanotubes, and an insulating coating layer coating the carbon nanotube wire, wherein an arithmetic mean roughness Ra1 on a peripheral surface of the carbon nanotube wire in a longitudinal direction is larger than 0.05 μm and not larger than 16 μm, and an arithmetic mean roughness Ra2 on a peripheral surface of the carbon nanotube wire in a circumferential direction is not smaller than 0.01 μm and not larger than 4.5 μm.

公开(公告)号：US20200258652A1

公开(公告)日：2020-08-13

申请号：US16858351

申请日：2020-04-24

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Satoshi YAMAZAKI ,  Satoshi YAMASHITA ,  Kenji HATAMOTO ,  Hideki AIZAWA

IPC: H01B5/10 ,  C01B32/168 ,  H01B1/04 ,  H01B7/08 ,  H01B7/00

Abstract: The present disclosure relates to a carbon nanotube strand wire obtained by twisting a plurality of CNT wires of a plurality of bundled CNT aggregates configured of a plurality of CNTs together. A number of twists t1 of the CNT wires is equal to or greater than 0 and less than 2500 T/m, and a number of twists t2 of the CNT strand wire is greater than 0 and less than 2500 T/m.

公开(公告)号：US20200251240A1

公开(公告)日：2020-08-06

申请号：US16857675

申请日：2020-04-24

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Satoshi YAMAZAKI ,  Satoshi YAMASHITA ,  Kenji HATAMOTO ,  Hideki AIZAWA

IPC: H01B1/04 ,  H01B13/00 ,  H01B7/00

Abstract: The present disclosure relates to a carbon nanotube strand wire capable of realizing further weight reduction as compared with a wire configured of a core wire made mainly of metal such as copper or aluminum and achieving both satisfactory durability in bending and handling ability. A CNT strand wire is obtained by twisting a plurality of CNT wires of a plurality of bundled CNT aggregates configured of a plurality of CNTs together. At least a number of twists t1 of the CNT wires and a number of twists t2 of the CNT strand wire is equal to or greater than 1000 T/m.

公开(公告)号：US20200251239A1

公开(公告)日：2020-08-06

申请号：US16857441

申请日：2020-04-24

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Hideki AIZAWA ,  Satoshi YAMAZAKI ,  Satoshi YAMASHITA ,  Kenji HATAMOTO

IPC: H01B1/04 ,  C01B32/168

Abstract: The present disclosure relates to a coated carbon nanotube electric wire includes: a carbon nanotube wire including one or more carbon nanotube aggregates configured of a plurality of carbon nanotubes; and an insulating coating layer with which the carbon nanotube wire is coated, and the insulating coating layer is configured of a material with a refractive index nD of equal to or greater than 1.45.

公开(公告)号：US20200251238A1

公开(公告)日：2020-08-06

申请号：US16857425

申请日：2020-04-24

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Hideki AIZAWA ,  Satoshi YAMAZAKI ,  Satoshi YAMASHITA ,  Kenji HATAMOTO

IPC: H01B1/04 ,  C01B32/168 ,  H01B13/00 ,  G01R31/60

Abstract: Provided is a coated carbon nanotube electric wire superior in identifiability. The coated carbon nanotube electric wire includes: a carbon nanotube wire including one or a plurality of carbon nanotube aggregates formed by a plurality of carbon nanotubes; and an insulating coating layer coating the carbon nanotube wire, wherein the insulating coating layer has an identification mark.

公开(公告)号：US20190355490A1

公开(公告)日：2019-11-21

申请号：US16528403

申请日：2019-07-31

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Satoshi YAMAZAKI ,  Yoshinori KAZAMA ,  Satoshi YAMASHITA ,  Koji FUJIMURA ,  Yuudai TANIMURA ,  Yukako NAKAI ,  Kazutomi MIYOSHI ,  Hideki AIZAWA ,  Kenji HATAMOTO

IPC: H01B1/04 ,  D01F9/12 ,  C01B32/168

Abstract: There is provided a CNTs wire capable of materializing a low resistivity and improving the electroconductivity. The CNT wire is formed from a single CNT aggregate constituted of a plurality of CNTs . . . having a single- or multi-walled structure, or formed by bundling a plurality of the CNT aggregates. The proportion of the total number of the CNTs having a double-walled or triple-walled structure based on the number of the plurality of CNTs constituting the CNT wire is 75% or higher; the proportion of the total number of the CNTs having an average diameter of the innermost wall of 1.7 nm or smaller based on the number of the CNTs constituting the CNT wire is 75% or higher; and the full-width at half maximum Δθ in azimuth angle in azimuth intensity distribution by SAXS indicating orientation of the plurality of CNT aggregates is 60° or smaller.

公开(公告)号：US20200265968A1

公开(公告)日：2020-08-20

申请号：US16858289

申请日：2020-04-24

Applicant: Furukawa Electric Co., Ltd.

Inventor： Hideki AIZAWA ,  Michimasa WATANABE ,  Satoshi YAMAZAKI ,  Satoshi YAMASHITA ,  Kenji HATAMOTO

IPC: H01B1/04 ,  H01B7/02 ,  H01F27/28 ,  H01B7/00 ,  C01B32/168 ,  D01F9/12 ,  D01F11/14

Abstract: The present disclosure relates to a coated carbon nanotube electric wire and a coil, which have excellent electroconductivity that is comparable to a wire made of copper, aluminum, or the like, realize an excellent insulation property and abrasion resistance, further have a heat dissipation ability, and can realize weight reduction. A coated carbon nanotube electric wire (1) includes: a carbon nanotube wire (10) that includes a single or a plurality of carbon nanotube aggregates (11) configured of a plurality of carbon nanotubes (11a); and an insulating coating layer (21) coating the carbon nanotube wire, and a thickness deviation rate of the insulating coating layer (21) is equal to or greater than 50%.

公开(公告)号：US20200258651A1

公开(公告)日：2020-08-13

申请号：US16857800

申请日：2020-04-24

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Satoshi YAMASHITA ,  Hideki AIZAWA ,  Satoshi YAMAZAKI

IPC: H01B5/10 ,  C01B32/168 ,  B05D5/12 ,  H01B1/02

Abstract: The present disclosure relates to a coated carbon nanotube electric wire that has excellent electroconductivity that is comparable to a wire made of copper, aluminum, or the like, realizes excellent voltage endurance, and can further realize weight reduction. A coated carbon nanotube electric wire includes: a carbon nanotube wire including one or more carbon nanotube aggregates configured of a plurality of carbon nanotubes; and an insulating coating layer coating the carbon nanotube wire, a proportion of a sectional area of the insulating coating layer in a radial direction with respect to a sectional area of the carbon nanotube wire in the radial direction is greater than 1.5, the sectional area of the carbon nanotube wire in the radial direction is equal to or greater than 0.031 mm2, and the sectional area of the insulating coating layer in the radial direction is equal to or greater than 0.049 mm2.

公开(公告)号：US20200258653A1

公开(公告)日：2020-08-13

申请号：US16859069

申请日：2020-04-27

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Hideki AIZAWA ,  Satoshi YAMAZAKI ,  Satoshi YAMASHITA ,  Kenji HATAMOTO

IPC: H01B7/00 ,  H01B7/42

Abstract: The present disclosure provides a coated carbon nanotube electric wire that has excellent electroconductivity comparable to electric wires made of copper, aluminum, and the like, achieves marked weight reduction and heat dissipation characteristics, and excels in adhesiveness between an insulating coating and core wire. A coated carbon nanotube electric wire includes a carbon nanotube wire made up of one or more carbon nanotube aggregates formed by a plurality of carbon nanotubes, and an insulating coating layer configured to coat the carbon nanotube wire, in which arithmetic mean roughness (Ra1) of an outer surface of the carbon nanotube wire in a circumferential direction is larger than arithmetic mean roughness (Ra2) of an outer surface of the insulating coating layer in the circumferential direction.