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. 11, 2006
Filed:
Feb. 19, 2003
Yoichi Onosato, Tokyo, JP;
Susumu Ichikawa, Tokyo, JP;
Akio Watanabe, Tokyo, JP;
Sumitomo Metal Mining Co., Ltd., Tokyo, JP;
Abstract
An optical-fiber feedthrough formed of a metallic sleeveand an optical fiberfastened thereto. The the metallic sleevehas i) a sleeve main body having a first hollow portionwhich has an inner diameter larger than the outer diameter of the optical-fiber bare fiber uncovered portionin the optical fiberand into which the optical-fiber bare fiber uncovered portion is inserted, and a second hollow portionwhich communicates with the first hollow portion and has an inner diameter larger than the outer diameter of the resin-covered portionin the optical fiber and in which an inserted portion of the resin-covered portion and an optical-fiber bare fiber uncovered portion standing uncovered from the resin-covered portion to lead to the first hollow portion are held and ii) a first conical recessed portionwhich is provided on the first hollow portion side of the sleeve main body and to which the leading end portion of the optical-fiber bare fiber uncovered portion is uncovered.