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:
Apr. 29, 2008
Filed:
Mar. 13, 2002
Applicants:
Koji Shimoda, Yokohama, JP;
Yuji Kubo, Yokohama, JP;
Makoto Shimizu, Yokohama, JP;
Inventors:
Assignee:
Sumitomo Electric Industries, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 6/02 (2006.01); G02B 6/24 (2006.01);
U.S. Cl.
CPC ...
Abstract
An optical fibercomprising a glass portionhaving a coreand a cladding, and one or more covering layersformed around the glass portion, in which an arrangement form of the covering layerwith respect to the glass portionin cross section perpendicular to a longitudinal direction thereof is changed continuously in the longitudinal direction thereof.