Superconducting magnet, superconducting magnet coil, and manufacturing method thereof
CA 2111651 C · Owner: Honjo, Koo · Inventors: Suzuki, Masao; Honjo, Koo; Umino, Morimichi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A superconducting magnet coil which does not exhibit quenching phenomenon under cooled and operational conditions is provided by using an embedding resin having sufficient low cooling restricted thermal stress and sufficient toughness to avoid the formation of cracks in the resin. The superconducting magnet coil is manufactured by winding a superconducting wire and fixing the wire with resin, wherein said resin is a low cooling restricted thermal stress and high toughness fixing resin having a release rate of elastic energy GIC at 4.2 K of at least 250J~m-2, and/or a stress intensity factor KIC of at least 1.5 MPa~~m, and/or a stress safety factor at 4.2 K of at least 3, and an allowable …
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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 16, 1993 and granted June 16, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 16, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 16, 2015.
- 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.