Method of fabricating oxide superconducting film
CA 2016354 C · Owner: Yoshida, Noriyuki · Inventors: Yoshida, Noriyuki; Hayashi, Noriki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An oxide superconducting film is formed using laser deposition of applying an excimer laser beam (1 21) onto, a target (3, 23) through a converging lens (2 22) and, depositing atoms and/or molecules scattered from the target (3, 23) on the base material (5). The converging lens (2) is prepared by a cylindrical lens or the, converging lens (22) is moved, so that a portion (4 25), irradiated with the laser beam (1 21) on the target (3, 23) is linearized. Thus it is possible to form an oxide, superconducting film which is homogeneous over a region having a relatively large area on the base material (5) not only in film thickness but also in property.
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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 9, 1990 and granted December 8, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 9, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 9, 2012.
- 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.