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:
Feb. 11, 2003
Filed:
Dec. 21, 1998
Masashi Fukuyama, Komaki, JP;
Kazutoshi Tohyama, Nakatsugawa, JP;
Other;
Abstract
There is provided a thermally fused integral ferrule in which a first glass substrate is at least partly unitarily combined with a second glass substrates by means of thermal fusion. The first glass substrate includes optical-fiber fixing V-shaped grooves on its side opposed to the second glass substrate, and also includes on the optical-fiber fixing V-shaped grooves in the first glass substrate, a guide section having a predetermined void between the first and second glass substrates. The thermally fused integral ferrule is manufactured by contacting the surface to be thermally fused of the first glass substrate in which the optical-fiber fixing V-shaped grooves are formed, with the surface to be thermally fused of the second glass substrate, followed by thermal fusion of the surfaces of the first and second glass substrates at a temperature of (Tg −100) to (Tg +150)° C. (where Tg is the glass transition temperature of one of the first and second glass substrates that is higher than that of the other and Tg is the lower glass transition temperature).