Semiconductor laser module, manufacturing method thereof and optical amplifier
CA 2365389 A1 · Owner: Yamamoto, Toshiro · Inventors: Nakae, Masashi; Yoshida, Junji; Aikiyo, Takeshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A semiconductor laser module includes a single semiconductor laser device having a, first light emitting stripe and at least one other light emitting stripe which are aligned to, respectively emit a first laser beam and at least one other laser beam through one edge surface, It also includes a first lens positioned so that the first laser beam and the at least one other, laser beam emitted from the semiconductor laser device are incident thereon the first lens, configured to separate the first laser beam and the at least one other laser beam. A beam, synthesizing member is included and has a first input part on which the first laser beam is, incident, at least one other input part on …
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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 December 17, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 17, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 17, 2023.
- 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.