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:
May. 14, 2024
Filed:
Aug. 25, 2020
Nec Corporation, Tokyo, JP;
Yutaka Yano, Tokyo, JP;
Eitaro Misumi, Tokyo, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
An optical fiber cable () according to each of the present disclosures includes a long tube () and at least one optical fiber () held and passed through an inside of the tube (). The tube () expands and contracts in a longitudinal direction when water pressure on an outside of the tube () changes. When the tube () expands and contracts in the longitudinal direction, the expansion and contraction of the tube () in the longitudinal direction is transmitted to the optical fiber () to expand and contract the optical fiber () in the longitudinal direction.
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