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:
Aug. 26, 2025
Filed:
Jun. 30, 2022
Applicant:
Sumitomo Electric Industries, Ltd., Osaka, JP;
Inventors:
Takahiro Nomura, Osaka, JP;
Kazuyuki Sohma, Osaka, JP;
Assignee:
SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/02 (2006.01); C03C 25/105 (2018.01); C03C 25/285 (2018.01); C03C 25/326 (2018.01); C03C 25/6226 (2018.01);
U.S. Cl.
CPC ...
G02B 6/02395 (2013.01); C03C 25/105 (2013.01); C03C 25/285 (2013.01); C03C 25/326 (2013.01); C03C 25/6226 (2013.01); C03C 2218/32 (2013.01);
Abstract
A method of manufacturing an optical fiber includes applying a curable resin composition containing a photopolymerization initiator so that an outer circumference of a glass fiber including a core and a cladding is coated, and forming a coating layer by radiating an ultraviolet ray to the curable resin composition and curing the curable resin composition. Forming the coating layer includes providing two or more non-radiation periods and intermittently radiating the ultraviolet ray three or more times so that a total time of the non-radiation periods is 0.010 seconds or more.