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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.:

US 12780713 B1

PDFFull Text
Date of Patent:
Nov. 03, 2026

Filed:

Apr. 19, 2022

Optical fiber production method, optical fiber, optical fiber ribbon production method, optical fiber ribbon, optical fiber production device, and optical fiber ribbon production device

Applicant:

Sumitomo Electric Industries, Ltd., Osaka, JP;

Inventors:

Junya Takano, Osaka, JP;

Tetsuya Hayashi, Osaka, JP;

Tetsu Morishima, Osaka, JP;

Assignee:

SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka, JP;

Attorney:

McDonald Hopkins LLC

Primary Examiner:

Lisa L Herring

Int. Cl.
CPC ...
C03B 37/025 (2006.01); C03B 37/029 (2006.01); C03C 25/106 (2018.01); G01M 11/00 (2006.01); G02B 6/44 (2006.01);
U.S. Cl.
CPC ...
C03B 37/0253 (2013.01); C03B 37/029 (2013.01); C03C 25/106 (2013.01); G01M 11/33 (2013.01); G02B 6/448 (2013.01); C03B 2205/06 (2013.01);
Abstract

An optical fiber production method is a method for producing an optical fiber including a glass fiber, the method including: heating and melting an optical fiber preform by a heating furnace, and drawing the glass fiber; acquiring a lateral observation image of the glass fiber at an observation position; calculating a variable related to an azimuth angle about a central axis of the glass fiber based on the lateral observation image; and applying a rotation about the central axis to the glass fiber based on the variable.

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Quick Actions:

Takano, Junya. (2026). Optical fiber production method, optical fiber, optical fiber ribbon production method, optical fiber ribbon, optical fiber production device, and optical fiber ribbon production device (U.S. Patent No. 12780713). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12780713

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