Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
September 8, 2009
Patent Application Number
12122177
Date Filed
May 16, 2008
Patent Primary Examiner
Patent abstract
An optical waveguide having excellent resistance to moisture, which includes an under cladding layer 2a formed on a substrate 1, core portions 3 formed in a predetermined pattern on the above-mentioned under cladding layer 2a for propagating an optical signal, and an over cladding layer 2b formed so as to cover the above-mentioned core portions 3. At least either the above-mentioned cladding layers 2a and 2b or the core portions 3 are formed of a resin composition containing a polyfunctional oxetane compound having a dicyclopentadiene ring which is represented by the following general formula (1):
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