Sumitomo Electric Industries, Limited

Sumitomo Wiring Systems, Limited

Autonetworks Technologies, Limited

Yuta Yasuyoshi

Tatsuya Shimada

Kinji Taguchi

Ryoma Uegaki

Takaki Endo

Toru Shimizu

Toyoki Furukawa

Kenichiro Iwama

A communication cableis provided with a conductoran insulation layercontaining an organic polymer and covering an outer periphery of the conductora metal foilfor covering an outer periphery of the insulation layerand a magnetic sheath layercontaining an organic polymer and a powdered magnetic material and covering an outer periphery of the metal foilA tensile modulus of elasticity of the magnetic sheath layeris lower than that of the insulation layerAssuming that an organic polymer having a melting point of 100° C. or lower is a low melting point polymer and a mass ratio of the low melting point polymer to organic polymer components constituting each layer is a low melting point component ratio, the low melting point component ratio is larger in the magnetic sheath layerthan in the insulation layer

Communication cable

A communication cable includes a solid sheath on an outer periphery of a signal cable having a plurality of insulated wires and in which transmission characteristics hardly decrease due to a pressure in extrusion-molding a sheath. The signal cableincludes a plurality of insulated wireseach having a conductorand an insulation coatingcovering an outer periphery of the conductor, and a solid sheathcovering an outer periphery of the signal cable. A melt flow rate of a constituent material of the sheathmeasured at 200° and with a load of 2.16 kg is 0.25 g/10 min. or more.

A shielded communication cable. The shielded communication cable includes a pair of insulated wires twisted with each other containing a conductor and an insulation covering which covers the conductor and has the relative dielectric constant of 2.5 or lower, a braided shield which covers the pair of insulated wires, a film-shaped shield which contains a metal film and longitudinally laps the pair of the insulated wires over the braided shield and a jacket having an inner diameter of 3.5 mm or smaller which covers the film-shaped shield. The pair of insulated wires are twisted with each other with a twist pitch of 30 times of an outer diameter of each of the insulated wires or smaller, and the shielded communication cable has a characteristic impedance in range of 100±5Ω.

Shielded communication cable

An insulated wire with bonding layer includes: a conductor; an insulating coating layer that covers an outer circumference of the conductor; and a bonding layer that is provided on an outer side of the insulating coating layer and is bonded by heat, wherein the insulating coating layer contains polyvinyl chloride, and the bonding layer contains a modified polyolefin resin and a polyamide resin.

Insulated wire with bonding layer of polyolefin and polyamide

A communication cable includes a coating layer that contains a powdery magnetic material and that can suppress the occurrence of a powdery substance containing the magnetic material when processing the coating layer. The communication cable further includes a conductor, an insulating coating that covers an outer circumstance of the conductor, and a magnetic sheath layer that covers an outer side of the insulating coating, and the magnetic sheath layer contains the magnetic material and the magnetic material has a particle shape with an average particle diameter of not more than 50 &#x3bc;m and an aspect ratio of not greater than 4.

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Mie, Japan

Yuta Yasuyoshi