The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 05, 2022
Filed:
Nov. 06, 2019
Sumitomo Electric Industries, Ltd., Osaka, JP;
Fumiaki Sato, Osaka, JP;
Kuushin Ryan, Osaka, JP;
Taro Fujita, Osaka, JP;
Nayu Yanagawa, Osaka, JP;
Ryota Fukumoto, Osaka, JP;
Masakazu Takami, Osaka, JP;
Yohei Suzuki, Osaka, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
Abstract
An optical fiber cable includes a plurality of intermittently connected optical fiber ribbons inside a cable sheath, in which a fibrous filler or an FRP using the fibrous filler is provided on at least one pair of diagonals of the two diagonal directions approximately orthogonal to each other inside the cable sheath. An average linear expansion coefficient of the fibrous filler at −40° C. to +70° C. is smaller than an average linear expansion coefficient of the cable sheath at −40° C. to +70° C.