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. 06, 2025
Filed:
Aug. 02, 2022
Applicant:
Furukawa Electric Co., Ltd., Tokyo, JP;
Inventor:
Tetsuya Yasutomi, Tokyo, JP;
Assignee:
FURUKAWA ELECTRIC CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/44 (2005.12); H01B 11/02 (2005.12);
U.S. Cl.
CPC ...
G02B 6/4403 (2012.12); G02B 6/4413 (2012.12); G02B 6/443 (2012.12); H01B 11/02 (2012.12);
Abstract
This optical fiber cable is a central-core-type cable in which slotted rods are not used, and is composed of a core, a wrapper, a tension member, a ripcord, a sheath, and the like. The core is formed by twisting together a plurality of optical fiber units without back-twisting. The optical fiber units are formed by twisting together a plurality of intermittently-fixed optical fiber ribbons. A direction in which the optical fiber ribbons are twisted together is same as a direction in which the optical fiber units are twisted together.