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. 01, 2009
Filed:
Aug. 15, 2008
Applicants:
Ryuichi Sugizaki, Tokyo, JP;
Iwao Shimotakahara, Tokyo, JP;
Harumi Inaba, Tokyo, JP;
Takeshi Yagi, Tokyo, JP;
Inventors:
Ryuichi Sugizaki, Tokyo, JP;
Iwao Shimotakahara, Tokyo, JP;
Harumi Inaba, Tokyo, JP;
Takeshi Yagi, Tokyo, JP;
Assignee:
The Furukawa Electric Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 6/02 (2006.01); G02B 6/16 (2006.01); G02B 6/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An optical fiber is made of silica-based glass, and includes a core and a cladding. The optical fiber has a mode field diameter of 5.4 micrometers or larger at a wavelength of 1300 nanometers, transmits light with a wavelength of 1250 nanometers in a single mode, and has a bending loss of 1 dB/turn or smaller at a wavelength of 1300 nanometers when the optical fiber is bent with a curvature radius of 1 millimeter.