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. 05, 2015
Filed:
Aug. 01, 2013
Furukawa Electric Co., Ltd., Tokyo, JP;
Minoru Saito, Tokyo, JP;
Minoru Kasahara, Tokyo, JP;
Kouji Mochizuki, Tokyo, JP;
Hiroki Tanaka, Tokyo, JP;
Yasuo Nakajima, Tokyo, JP;
Furukawa Electric Co., Ltd., Tokyo, JP;
Abstract
The present invention provides an optical fiber in which transmission loss is not easily increased when the optical fiber is dipped in water and then dried and also which has a solvent resistant property and a micro-bend resistant property. An optical fiber according to one embodiment of the present invention is an optical fiber in which at least two layers of coating resin coat the circumference of a glass optical fiber. When a Yang's modulus of the first coating layer of the coating resin is defined by PY (MPa) and an elution rate of the coating resin after dipping in 60° C. hot water for 168 hours is defined by E (mass·%), a formula of 1.8≦E≦8.61×PY+1.40 is satisfied.