Superconducting device having a reduced thickness of oxide superconducting layer and method for manufacturing the same
CA 2050731 C · Owner: Inada, Hiroshi · Inventors: Inada, Hiroshi; Iiyama, Michitomo; Nakamura, Takao
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A superconducting device comprises a substrate having a projection formed in a principal surface and an oxide superconductor thin film formed to cover the projection formed in the principal surface and having a substantially planar surface. The oxide superconductor thin film includes a thinned portion positioned on the projection a first thick, portion positioned at one side of the projection and a second thick portion, positioned at the other side of the projection so that a superconducting, current can flow between the first thick portion and the second thick portion through the thinned portion of the oxide superconductor thin film. For formation of the superconducting device a substrate …
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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 September 5, 1991 and granted March 18, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 5, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 5, 2013.
- 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.