Optical connection device
CA 2438517 A1 · Owner: Miyazato, Kentarou · Inventors: Murata, Yoshikazu; Miyazato, Kentarou; Sekiguchi, Yukinari
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An optical connection device according to the invention is an optical connection device for optically coupling light propagated through an optical waveguide to an optical element arranged outside the optical waveguide and with the following configuration. Part of the optical waveguide is removed so as to he shaped like a groove. The optical waveguide and the optical element are arranged so that an optical axis of the optical waveguide intersects an optical axis of the optical element at a specified angle inside the groove. An optical unit is arranged at a position of intersection of the optical axes for turning light by reflection from one optical axis along the other optical axis.
Read the whole patent
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 August 27, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 27, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 27, 2025.
- 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
Timeline From CIPO dates
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.