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:
Jun. 10, 2014
Filed:
Aug. 16, 2012
Applicants:
Shoji Tanigawa, Sakura, JP;
Katsuhiro Takenaga, Sakura, JP;
Inventors:
Shoji Tanigawa, Sakura, JP;
Katsuhiro Takenaga, Sakura, JP;
Assignee:
Fujikura Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 6/36 (2006.01); G02B 6/02 (2006.01); C03B 37/012 (2006.01); G02B 6/14 (2006.01); G02B 6/28 (2006.01); G02B 6/036 (2006.01); G02B 6/028 (2006.01);
U.S. Cl.
CPC ...
G02B 6/02042 (2013.01); C03B 2203/26 (2013.01); C03B 2201/86 (2013.01); C03B 2203/34 (2013.01); G02B 6/14 (2013.01); C03B 37/01222 (2013.01); G02B 6/2804 (2013.01); C03B 2203/22 (2013.01); G02B 6/03633 (2013.01); G02B 6/0288 (2013.01);
Abstract
A coupled multi-core fiberincludes a plurality of coresand a cladsurrounding the plurality of cores, wherein the plurality of coresare arranged in such a way that periphery surfaces of the adjacent corescontact with each other, each of the coresis made to have a refractive index higher than the cladand includes: an outer regionhaving a predetermined thickness from the periphery surface; and an inner regionmade to have a higher refractive index than the outer regionand surrounded by the outer region