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:
Oct. 31, 2006
Filed:
Jun. 01, 2005
Tetsuya Haruna, Yokohama, JP;
Shinji Ishikawa, Yokohama, JP;
Toshiki Taru, Yokohama, JP;
Tetsutarou Katayama, Yokohama, JP;
Nobuyuki Taira, Yokohama, JP;
Tetsuya Haruna, Yokohama, JP;
Shinji Ishikawa, Yokohama, JP;
Toshiki Taru, Yokohama, JP;
Tetsutarou Katayama, Yokohama, JP;
Nobuyuki Taira, Yokohama, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
Abstract
A method produces a glass body that contains a reduced amount of OH groups in the metallic-oxide-containing glass layer and that has a reduced amount of transmission loss due to OH groups when the glass body is transformed into an optical fiber. The production method produces an optical glass body. An optical fiber contains the optical glass body in at least one part of its region for guiding a lightwave. The production method includes the following steps: (a) introducing into a glass pipe a gas containing an organometallic compound and a glass-forming material; (b) decomposing the organometallic compound into an organic constituent and a metallic constituent; (c) heating and oxidizing the metallic constituent so that produced glass particles containing a metallic oxide are deposited on the inner surface of the glass pipe to form a glass-particle-deposited layer; and (d) consolidating the deposited layer to form a metallic-oxide-containing glass layer.