公开(公告)号：US20230008828A1

公开(公告)日：2023-01-12

申请号：US17837733

申请日：2022-06-10

Applicant: Hitachi Metals, Ltd.

Inventor： Hiromitsu KURODA ,  Tamotsu SAKURAI ,  Yoshiki NAKADE ,  Detian HUANG ,  Xinweilong LI

IPC: H01B11/18 ,  H01B13/22

Abstract: A signal transmission cable includes a conductor, an insulator covering a periphery of the conductor, and a shield layer covering a periphery of the insulator. The shield layer includes a lateral winding shield portion composed of a plurality of metal wires being helically wrapped around the periphery of the insulator to cover the periphery of the insulator, and a batch plating portion composed of a hot dip plating, which is covering a periphery of the lateral winding shield portion. Where a diameter of the metal wire is d and a thickness of the batch plating portion from an outer surface of the metal wire is t, a formula t

公开(公告)号：US20220084723A1

公开(公告)日：2022-03-17

申请号：US17410770

申请日：2021-08-24

Applicant: Hitachi Metals, Ltd.

Inventor： Hiromitsu KURODA ,  Tamotsu SAKURAI ,  Keisuke FUJITO ,  Yoshiki NAKADE ,  Detian HUANG ,  Hideki NONEN

IPC: H01B11/18 ,  H01B13/016 ,  H01B13/22 ,  G01N23/2252

Abstract: A coaxial cable is composed of a conductor, an insulator around the conductor, a shield layer around the insulator, and a sheath around the shield layer. The shield layer includes a lateral winding shielding portion with metal wires helically wrapped around the insulator, and a batch plating portion covering the lateral winding shielding portion. The shield layer includes a joining portion where adjacent metal wires are joined with each other with the batch plating portion at a gap between the adjacent metal wires, and inner peripheral portions where the metal wires are not being covered with the batch plating portion and plating layers are exposed. The joining portion is provided between adjacent inner peripheral portions. When an elemental analysis is performed in any analysis region having an area of 0.015 mm2 or more and 0.300 mm2 or less in an insulator-side surface of the shield layer which is stripped from the insulator, an area of a chlorine present region where chlorine is present in the analysis region is 5% or less of an area of the analysis region.