Sumitomo Electric Industries, Limited

Takao Hirama

Ken Takahashi

Fumiaki Sato

Ryoei Oka

Yoshiaki Nagao

Taro Fujita

Kentaro Takeda

Provided is an optical fiber cable that is easier to be laid and enables higher-density packaging than an existing cable. This optical fiber cable is a slotless type optical fiber cable including: an optical unit formed by collecting and twisting a plurality of optical fibers or ribbons each formed by arranging the plurality of optical fibers; a cable core housing the optical unit; and a cable jacket provided around the cable core, and a tension member made of a fiber body within the cable core.

Optical fiber cable

Provided is a polyethylene resin for use in a spacer for an optical fiber cable, the polyethylene resin having a density of 0.952 g/cmor more, containing a polyethylene having a molecular weight of 10,000 or less in a weight fraction of 22% or more, and containing a polyethylene having a molecular weight of 300,000 or more in a weight fraction of 12% or more.

Polyethylene resin for use in spacer for optical fiber cable and spacer for optical fiber cable using the same

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Yokohama, Japan

Takao Hirama