Optical waveguide module and method of manufacturing the same
CA 2124245 A1 · Owner: Sumitomo Electric Industries, Ltd. · Inventors: Hirai, Shigeru; Suganuma, Hiroshi; Hattori, Tomoyuki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An optical waveguide module according to the present invention comprises an optical waveguide substrate having an optical waveguide formed therein, an optical waveguide holder for mounting the optical waveguide substrate thereon, an optical fiber connector supporting an optical fiber therein, and an optical fiber holder for mounting the optical fiber connector thereon, the end faces of the optical waveguide holder and the optical fiber holder are brought into contact with each other while aligning the optical waveguide and the optical fiber the end faces of, the optical waveguide substrate and the optical fiber connector are bonded at least partially through a gap and a hardening matching …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed May 25, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 25, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 25, 2016.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
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Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.