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:
Nov. 14, 2017
Filed:
Feb. 10, 2016
Fujikura Ltd., Tokyo, JP;
National University Corporation Hokkaido University, Sapporo-shi, Hokkaido, JP;
Yoshimichi Amma, Sakura, JP;
Katsuhiro Takenaga, Sakura, JP;
Yusuke Sasaki, Sakura, JP;
Kunimasa Saitoh, Sapporo, JP;
FUJIKURA LTD., Tokyo, JP;
NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY, Sapporo-shi, Hokkaido, JP;
Abstract
No core is disposed at the lattice point of a triangular lattice of a first layer LY. First coresandof the core elementsandare disposed at the lattice points of a second layer LY. A first coreof the core elementand the second coreare alternately disposed at the lattice points of a third layer LY. In a fourth layer LY, no core is disposed at six lattice points, and the first coresandof the core elementsandare disposed at the other lattice points. The second coresare adjacent to the lattice points of the fourth layer LY, at which no core is disposed. The effective refractive indexes of the core elements adjacent to each other are different from each other.