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:
Sep. 06, 2016
Filed:
Feb. 17, 2016
Fujikura Ltd., Tokyo, JP;
National University Corporation Hokkaido University, Sapporo-shi, Hokkaido, JP;
FUJIKURA LTD., Tokyo, JP;
NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY, Sapporo-shi, Hokkaido, JP;
Abstract
0.5377×r−7.7≦V/V≦0.5377×r−5.7, 3≦r/r≦5 are satisfied, where a radius of the inner core before tapered in diameter is defined as r, a radius of the outer core before tapered in diameter is defined as r, a refractive index volume formed of a product of a cross sectional area of the inner core and a relative refractive index difference of the inner core to the cladding before tapered in diameter is defined as V, and a refractive index volume formed of a product of a cross sectional area of the outer core and a relative refractive index difference of the outer core to the cladding before tapered in diameter is defined as V.