Mica tape, electrical rotating machine coil, and electrical rotating machine comprising the electrical rotating machine coil
CA 2589474 C · Owner: Kawahara, Makoto · Inventors: Mukai, Kazuma; Kawahara, Makoto; Aso, Toshiyuki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides a mica tape comprising a mica foil (12), a glass cloth (14) and an , inorganic filler (16) arranged on the glass cloth wherein the mica tape is wound a plurality of times about an outer circumferential surface of a conductor portion of an electrical rotating machine coil so as to form an insulating layer for the coil, and the inorganic filler (16) has a Mohs hardness falling within a range of 1 to 7 and exhibits a heat conductivity superior to those of the mica foil (12) and the glass cloth (14). According to the present invention the inorganic , filler is excellent in the heat conductivity and has a Mohs hardness not lower than that of the glass cloth …
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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 28, 2006 and granted April 30, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 28, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.