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. 19, 2022
Filed:
Feb. 08, 2018
Applicant:
Fujikura Ltd., Tokyo, JP;
Inventor:
Itaru Ishida, Suzuka, JP;
Assignee:
FUJIKURA LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03B 37/025 (2006.01); C03C 25/106 (2018.01); C03C 25/12 (2006.01); C03C 25/26 (2018.01);
U.S. Cl.
CPC ...
C03C 25/12 (2013.01); C03B 37/025 (2013.01); C03C 25/26 (2013.01);
Abstract
An optical fiber manufacturing method includes: drawing an optical fiber preform to form a bare optical fiber; cooling the bare optical fiber; coating an uncured coating layer that includes a resin precursor on an outer periphery of the bare optical fiber; curing the uncured coating layer to form a semi-cured coating layer; further curing the semi-cured coating layer; and cooling the semi-cured coating layer by at least one non-contact direction changer between the curing of the uncured coating layer and the curing of the semi-cured coating layer.