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:
Feb. 05, 2019
Filed:
Dec. 25, 2014
Applicant:
Sumitomo Electric Industries, Ltd., Osaka-shi, Osaka, JP;
Inventors:
Kumiko Tachibana, Yokohama, JP;
Takashi Fujii, Yokohama, JP;
Assignee:
SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka-shi, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/02 (2006.01); C03C 25/24 (2018.01); C03C 25/47 (2018.01); C03C 25/106 (2018.01); G02B 6/44 (2006.01); C03C 25/1065 (2018.01); C03C 25/475 (2018.01);
U.S. Cl.
CPC ...
G02B 6/02395 (2013.01); C03C 25/106 (2013.01); C03C 25/1065 (2013.01); C03C 25/24 (2013.01); C03C 25/47 (2018.01); C03C 25/475 (2018.01); G02B 6/4403 (2013.01); G02B 6/4482 (2013.01); G02B 6/4486 (2013.01);
Abstract
An optical fiber comprises a glass fiber having a core and a cladding with which the core is covered, and a coating resin layer with which the glass fiber is covered, the coating resin layer having a colored layer of a thickness of 10 μm or more, wherein a change rate of a yellow index of the coating resin layer after aging due to temperature and humidity under an environment of 85° C. and 85% RH for 30 days is 5 or less per day.