Asahi Kasei Fibers Corporation

Asahi Kasei Kabushiki Kaisha

Shunji Tatsumi

Hiroyuki Makino

Yasunori Yuuki

An object of the present invention is to provide an elastic signal transmission cable having a length of several centimeters to several meters that has a shape deformation tracking ability and enables high-speed signal transmission. The inventive elastic signal transmission cable has an elasticity of 10% or more and transmission loss of 10 dB/m or less in a relaxed state at 250 MHz, and comprises an elastic cylindrical body having an elasticity of 10% or more and a conductor portion containing at least two conductor wires wound in the same direction around the elastic cylindrical body.

Elastic signal transmission cable

Disclosed is an extensible optical signal transmission cable having an extensity of 10% or more and an optical transmission loss of less than 20 dB/m when the cable is loosened. The cable comprises an elastic cylinder having the extensity of 10% or more and at least one optical fiber wound around the elastic cylinder. The optical fiber has a bending diameter (R) which is not smaller than the bending limit diameter (Re). The extensible optical signal transmission cable is compliant with shape deformation, can transmit an optical signal when the cable is extended or contracted, and can be used in repetitive extension and contraction.

Extensible optical signal transmission cable

An expandable electric cord having a core portion, a conductor portion and a sheath portion; wherein the core portion is an elastic cylinder having an elastic body and an intermediate layer covering the outer periphery thereof. The conductor portion contains a conductor wire having narrow stranded wires, with the conductor wire being coiled and/or braided around the outer periphery of the elastic cylinder, and the sheath portion is an outer sheath layer having an insulator that covers the outer periphery of the conductor portion.

Growing community of inventors

Tokyo, Japan

Shunji Tatsumi