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:
Feb. 15, 2022
Filed:
Jan. 09, 2019
Applicant:
Sumitomo Electric Industries, Ltd., Osaka, JP;
Inventors:
Fumiaki Sato, Osaka, JP;
Kuushin Ryan, Osaka, JP;
Assignee:
SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/44 (2006.01);
U.S. Cl.
CPC ...
G02B 6/448 (2013.01);
Abstract
An optical fiber cable includes: a plurality of ribs formed along a longitudinal direction of a cable; and a slot core in which a slot grove for housing an optical fiber ribbon is formed between the ribs. In the slot groove, a plurality of optical fiber ribbons are bundled and a plurality of subunits whose periphery is wound with a bundle material are provided, and the bundle materials between the plurality of subunits are bonded to each other.