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. 04, 2013
Filed:
Jul. 26, 2010
Applicant:
Katsunori Imamura, Tokyo, JP;
Inventor:
Katsunori Imamura, Tokyo, JP;
Assignee:
Furukawa Electric Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 6/02 (2006.01); G02B 6/036 (2006.01);
U.S. Cl.
CPC ...
Abstract
A multi-core optical fiber includes: a plurality of core portions; and a cladding portion positioned around the plurality of core portions and including, in a cross section of the cladding portion, a flat portion in at least a part of an outer periphery of the cladding portion and a remaining portion of the outer periphery that is circular, the cross section being perpendicular to a longitudinal direction of the cladding portion.