Alternator rotor and manufacturing method thereof
CA 2134864 A1 · Owner: Saito, Kenji · Inventors: Saito, Kenji; Hasegawa, Kouhei; Otaka, Hideki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to an alternator rotor and its manufacturing method, said rotor having a first rotor member on which a plurality of teeth have been formed plus a second rotor, member arranged so that its teeth are positioned in the spaces in the cylindrical surface formed by the teeth of said first rotor member. A cylindrically-shaped magnetic material is cut to match the shape of the teeth and is separated into a first rotor member and a second rotor member. A plurality of teeth is formed on the first rotor member, and teeth are formed on the second rotor member so that they are positioned in the spaces in the cylindrical surface formed by the teeth of the first rotor member. The …
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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 November 1, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 1, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 1, 2016.
- 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.