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. 17, 2021
Filed:
Jun. 18, 2018
Applicant:
Toyo Seikan Group Holdings, Ltd., Tokyo, JP;
Inventor:
Naoki Misu, Tokyo, JP;
Assignee:
TOYO SEIKAN GROUP HOLDINGS, LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/32 (2006.01); G02B 6/25 (2006.01); G02B 6/26 (2006.01); G02B 6/42 (2006.01);
U.S. Cl.
CPC ...
G02B 6/32 (2013.01); G02B 6/25 (2013.01); G02B 6/262 (2013.01); G02B 6/4206 (2013.01);
Abstract
A lensed optical fiber in which a rod-shaped GRIN lens is fused at the tip of an optical fiber is manufactured by executing: a step for fusing together an optical fiber () held by a fiber holder () and a GRIN lens () held by a lens holder () with the tips thereof abutting each other; a step for moving the lens holder () in the direction away from the fiber holder (), while relaxing the holding force of the lens holder (), and reholding the GRIN lens (); and a step for cutting the GRIN lens () with a length equal to the movement distance of the lens holder