Method of making non-oriented electrical steel sheets having excellent magnetic properties
CA 1318577 C · Owner: Hosoya, Yoshihiro · Inventors: Tomita, Kunikazu; Hosoya, Yoshihiro; Jitsukawa, Masaharu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is to produce non-oriented electrical steel sheets having excellent magnetic properties in that a coiling is carried out at the low temperature for checking the amount of generating the scales, and a de-scaling is perfectly done after the hot rolling, and the de-scaled hot rolled sheet is annealed in the non-oxidizing atmosphere thereby to control the, oxidation and the nitriding as little as possible during annealing the hot rolled sheet, and by determining to be higher a heating temperature for hot rolling, a magnetic properties (a magnetic flux density) is improved, and the hot rolled sheet is practised with an open coil-annealing and annealing conditions therefor …
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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
- Granted June 1, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 1, 2010.
- 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.