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:
Apr. 23, 2019
Filed:
Jan. 26, 2017
Sumitomo Electric Industries, Ltd., Osaka-shi, Osaka, JP;
Fumiaki Sato, Yokohama, JP;
Keisuke Okada, Yokohama, JP;
Yoshiaki Nagao, Yokohama, JP;
Nobuyuki Suzuki, Yokohama, JP;
SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka-shi, Osaka, JP;
Abstract
This optical fiber cable comprises an optical unit obtained by creating strands of a plurality of optical fiber tape cores, a tube in which the optical unit is housed, and a cable sheath that covers the outside of an aggregate of a plurality of tubes. The optical fiber tape cores have provided thereto, between some or all of optical fiber cores when a plurality of optical fiber cores are positioned in parallel, and intermittently in the longitudinal direction thereof, connecting parts that connect adjoining optical fiber cores, and non-connecting parts at which adjoining optical fiber cores are not connected. The tube has a Young's modulus lower than the Young's modulus of the cable sheath, and the aggregate is such that the plurality of tubes on the inside of the cable sheath deform elastically with respect to one another, with some thereof being in surface contact with the cable sheath.