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:
Aug. 22, 2006
Filed:
Dec. 09, 2002
Tatsuya Suetsugu, Osaka, JP;
Kohei Kadono, Ikeda, JP;
Norimasa Kominami, Osaka, JP;
Takeshi Ohtani, Osaka, JP;
Hiroaki Yokoi, Osaka, JP;
Minoru Takada, Osaka, JP;
Takashi Tarumi, Osaka, JP;
Toshihiko Einishi, Osaka, JP;
Tetsuo Yazawa, Ikeda, JP;
Tatsuya Suetsugu, Osaka, JP;
Kohei Kadono, Ikeda, JP;
Norimasa Kominami, Osaka, JP;
Takeshi Ohtani, Osaka, JP;
Hiroaki Yokoi, Osaka, JP;
Minoru Takada, Osaka, JP;
Takashi Tarumi, Osaka, JP;
Toshihiko Einishi, Osaka, JP;
Tetsuo Yazawa, Ikeda, JP;
Isuzu Glass Co., Ltd., Osaka, JP;
National Institute of Advanced Industrial Science and Technology, Tokyo, JP;
Abstract
The present invention provides a method for forming an optical waveguide characterized by applying a paste containing a copper compound to a glass substrate containing an alkali metal as a glass component over the whole surface thereof or in a patterned form, and performing heat treatment at a temperature lower than the softening temperature of the glass substrate. The method of the invention can produce an optical waveguide without the need for a high vacuum as in the thin film deposition method and without the use of a molten salt, and is capable of dispersing Cuions selectively in a glass substrate with excellent controllability.