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:
Mar. 31, 2022
Sumitomo Electric Industries, Ltd., Osaka, JP;
SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka, JP;
Abstract
A method for manufacturing an optical fiber coats a first resin on a glass fiber drawn from a glass base material, and cures the first resin to form a first coating. The method includes causing the glass fiber to travel at a first velocity during a first time period, increasing the velocity from the first velocity to a second velocity during a second time period following the first time period, and maintaining the velocity at the second velocity during a third time period following the second time period. A relationship 1.0<TB/TB<=11.0 stands, where TBdenotes a thickness of the first coating in the increasing, from a start of coating the first resin to a time when the velocity reaches a third velocity higher than the first velocity and lower than the second velocity, and TBdenotes a thickness of the first coating in the maintaining.